Sodium Nitroprusside as a Nitric Oxide Donor in a Rat Intestinal Ischemia-Reperfusion Model

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AWE, additional wrist extensor; D, dorsal digital expansion for the index finger; ECRB, extensor carpi radialis brevis; Er, extensor retinaculum. The course of the additional muscle is shown by the downward facing arrows. The upward facing arrow indicates the tendon of extensor indicis muscle." ] ] ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "Soubhagya Ranjan Nayak, Ashwin Krishnamurthy, Latha Venkatraya Prabhu, Rajalakshmi Rai, Anu Vinod Ranade, Sampath Madhyastha" "autores" => array:6 [ 0 => array:2 [ "nombre" => "Soubhagya Ranjan" "apellidos" => "Nayak" ] 1 => array:2 [ "nombre" => "Ashwin" "apellidos" => "Krishnamurthy" ] 2 => array:2 [ "nombre" => "Latha Venkatraya" "apellidos" => "Prabhu" ] 3 => array:2 [ "nombre" => "Rajalakshmi" "apellidos" => "Rai" ] 4 => array:2 [ "nombre" => "Anu Vinod" "apellidos" => "Ranade" ] 5 => array:2 [ "nombre" => "Sampath" "apellidos" => "Madhyastha" ] ] ] ] ] "idiomaDefecto" => "en" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S1807593222028484?idApp=UINPBA00004N" "url" => "/18075932/0000006300000001/v1_202212060857/S1807593222028484/v1_202212060857/en/main.assets" ] "en" => array:18 [ "idiomaDefecto" => true "cabecera" => "Basic Research" "titulo" => "Sodium Nitroprusside as a Nitric Oxide Donor in a Rat Intestinal Ischemia-Reperfusion Model" "tieneTextoCompleto" => true "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "91" "paginaFinal" => "96" ] ] "autores" => array:1 [ 0 => array:3 [ "autoresLista" => "Ali Emre, Orhan Bayram, Bulent Salman, Sevim Ercan, Ziya Anadol, Okhan Akin" "autores" => array:6 [ 0 => array:3 [ "nombre" => "Ali" "apellidos" => "Emre" "email" => array:1 [ 0 => "auemre@gmail.com" ] ] 1 => array:2 [ "nombre" => "Orhan" "apellidos" => "Bayram" ] 2 => array:2 [ "nombre" => "Bulent" "apellidos" => "Salman" ] 3 => array:2 [ "nombre" => "Sevim" "apellidos" => "Ercan" ] 4 => array:2 [ "nombre" => "Ziya" "apellidos" => "Anadol" ] 5 => array:2 [ "nombre" => "Okhan" "apellidos" => "Akin" ] ] "afiliaciones" => array:1 [ 0 => array:2 [ "entidad" => "Zonguldak Karaelmas University, General Surgery – Turkey" "identificador" => "af1" ] ] ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:7 [ "identificador" => "fig2" "etiqueta" => "Figure 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 687 "Ancho" => 993 "Tamanyo" => 94695 ] ] "descripcion" => array:1 [ "en" => "Histological appearance of the I/R group. Villous epithelial separation, luminal epithelial seeding and naked subepithelial areas (H&E x100)." ] ] ] "textoCompleto" => "INTRODUCTIONIt is a well known phenomenon that reperfusion is as dangerous for the tissues as ischemia, particularly in the heart and the intestines.<a class="elsevierStyleCrossRef" href="#bib1">1</a> Intestinal ischemia is a result of systemic factors (hypovolemia, hypotension, hypoxia, sepsis) or local factors (mechanical obstruction of the intestine or the intestinal vessels). The restored circulation results in the formation of free oxygen radicals and other acute phase reactants. Resulting cellular death occurs via the lipid peroxydation of the cell wall.<a class="elsevierStyleCrossRef" href="#bib2">2</a>,<a class="elsevierStyleCrossRef" href="#bib3">3</a>The role of endogenous endothelin peptides in the intestinal ischemia-reperfusion (I/R) model has been well studied.<a class="elsevierStyleCrossRef" href="#bib4">4</a> Although the exact mechanism is still not fully understood, investigations on nitric oxide (NO), an endothelial-derived relaxation factor, revealed its importance in the management of I/R injury. <a class="elsevierStyleCrossRef" href="#bib5">5</a>,<a class="elsevierStyleCrossRef" href="#bib6">6</a> NO inhibits lipid peroxidation via the lipophilic free radical effect.<a class="elsevierStyleCrossRef" href="#bib7">7</a> There are many studies concerning NO agonists and antagonists, but the main concern in recent years has been NO donors releasing exogenous NO. 3-morpholinosydnonimine (SIN-1), spermine NO, diethanolamine nitric oxide (DEA/NO), S-nitroso-N-acetylpenicillamine (SNAP), FK409, S-nitrosoglutatione (GSNO), NOC5, NOC12, CAS 754, and Gliseryl trinitrate are the major products used.<a class="elsevierStyleCrossRef" href="#bib1">1</a>,<a class="elsevierStyleCrossRef" href="#bib7">7</a>Sodium Nitroprusside (SNP) is another nitric oxide donor investigated for its intravascular and intraluminal effects on ischemia reperfusion injury. We investigated the effects of NO in I/R injury with the commercially available and inexpensive product sodium nitroprusside (SNP) administered intraperitoneally in a rat intestinal model.MATERIALS AND METHODSEthicsThis study was performed in the investigation laboratories of Gazi University with the permission of the Gazi University Ethical Committee.Study designThe study was conducted with 35 male Wistar albino rats weighing between 200–230 grams, divided into 5 groups. Rats were fed standard food until the last 12 hours of the study and were given water ad libitum. A midline incision was performed and the superior mesenteric artery was clamped for 40 minutes to create ischemia. Intestinal segments were taken into the abdominal cavity and a light source was used to avoid hypothermia. All medications were administered intraperitoneally (i.p) immediately before removal of the superior mesenteric artery clamp, and the intestines were allowed to reperfuse for 30 minutes after the abdominal wall was closed.The groups are designed as:<elsevierMultimedia ident="tbl1a"></elsevierMultimedia>In the SNP group, Sodium Nitroprusside (Nipruss, ADEKA) was given i.p. at 5 mg/kg; in the NG-Nitro-L-Arginin Methyl Ester (L-NAME) group, L-NAME was given i.p. at 10 mg/kg (Sigma Chemical Co). In the SNP+L-NAME group, SNP and L-NAME were given i.p. at 5 mg/kg and 10 mg/kg, respectivelyIntestinal tissue samples taken from the jejunum 30 minutes after the reperfusion were preserved in 10% formaline solution for histopathological examinations and snap frozen in liquid nitrogen and then stored at –80°C for tissue MDA level determination.Pathological examinationTissue samples were examined under the light microscope after haemotoxyleneosine (H&E) staining using the criteria reported by Park and Chiu.<a class="elsevierStyleCrossRef" href="#bib8">8</a> Briefly, [0] was described as normal mucosa, [1] as subepithelial space at villus tips, [2] as extension of subepithelial space with moderate lifting, [3] as massive lifting down sides of villi, with some denuded tips, [4] as denuded villi, dilated capillaries, [5] as disintegration of lamina propria, [6] as crypt layer injury, [7] as transmucosal infarction and [8] as transmural infarction.Tissue malonyldialdehyde (MDA) levelTissue MDA levels were studied as reported by Uchiyama et al.<a class="elsevierStyleCrossRef" href="#bib9">9</a> Tissue samples were homogenized with 1.15% cold KCL, and then 1% phosphoric acid and 0.6% thiobarbituric acid were added sequentially. After boiling in a water bath for 45 minutes, n-buthanol was added. The material was centrifuged at 2500 rpm for 5 minutes and spectrophotometric determinations were performed at 535 and 520 nm. The results are given as nmol/gr of tissue.StatisticsTissue MDA levels and the results of the pathological examinations were subjected to the Kruskal-Wallis test. Post-hoc multiple comparison test (Bonferroni) was also performed in order to find significant differences between groups. Values of p<0.05 were accepted as significant.RESULTSThere is a significant difference between groups according to Kruskal-Wallis variance analysis (p<0.001). The histopathological scores are displayed in <a class="elsevierStyleCrossRef" href="#tbl1">Table 1</a><elsevierMultimedia ident="tbl1"></elsevierMultimedia>Control GroupThe mean histopathological injury score in the control group is 0. The histological appearance of the control group is shown in <a class="elsevierStyleCrossRef" href="#fig1">Figure 1</a>.<elsevierMultimedia ident="fig1"></elsevierMultimedia>I/R GroupIn the samples of the I/R group, the mean score of injury is 3.28 ± 0.48. Histopathological examination reveals significant villous epithelial separation, luminal epithelial seeding and naked subepithelial areas (<a class="elsevierStyleCrossRef" href="#fig2">Figure 2</a>).<elsevierMultimedia ident="fig2"></elsevierMultimedia>SNP GroupIn the SNP group, the mean injury score is 1.43 ± 0.53, and a contact epithelial lining, except with some subepithelial spacings, is observed upon histopathological examination (<a class="elsevierStyleCrossRef" href="#fig3">Figure 3</a>).<elsevierMultimedia ident="fig3"></elsevierMultimedia>L-NAME GroupIn the L-NAME group, where endogenous NO synthesis is thought to be inhibited, the mean score of injury is 3.28 ± 0.95, as in the I/R group. Similar to the I/R group, free mucosal cell particles can be seen in the lumen and epithelial layer separations are obvious (<a class="elsevierStyleCrossRef" href="#fig4">Figure 4</a>).<elsevierMultimedia ident="fig4"></elsevierMultimedia>SNP+L-NAME GroupIn the SNP+L-NAME group, the mean score of injury is 2.0 ± 0.81. Pathological examination revealed an increase in the amount of subepithelial spaces and epithelial separations in this group (<a class="elsevierStyleCrossRef" href="#fig5">Figure 5</a>).<elsevierMultimedia ident="fig5"></elsevierMultimedia>Statistical analysis of the data with the Mann-Whitney U test shows that the I/R group is statistically significantly different than the SNP and the SNP+L-NAME groups (p< 0.05). The difference is not significant between either the I/R group and the L-NAME group or the SNP and the SNP+L-NAME group. There is also a statistically significant difference between the L-NAME group and the SNP group, and between the L-NAME group and the SNP+L-NAME group (p<0.05).Tissue MDA levels are displayed in <a class="elsevierStyleCrossRef" href="#tbl2">Table 2</a><elsevierMultimedia ident="tbl2"></elsevierMultimedia>In the Sham Group, the tissue MDA level is 3.71 ± 1.38 nmol/gr of tissue.In the I/R Group, I/R injury to the intestinal tissues results in a significant increase in MDA levels. The mean MDA level in this group is 14.42 ± 2.50 nmol/gr of tissue.In the SNP Group, the mean MDA level is significantly decreased to 8.85±1.06 nmol/gr of tissue. There is no difference between the SNP and SNP+L-NAME groups, although the difference between the MDA levels of the SNP and L-NAME groups are again statistically significant (p<0.05).In the L-NAME Group, the mean tissue MDA level is 12.85 ± 3.53 nmol/gr of tissue. There is no difference between the L-NAME and I/R groups.In the SNP+L-NAME Group, the mean MDA level is 9.42 ± 1.27nmol/gr of tissue and the difference compared with the L-NAME group is statistically significant (p<0.05).DISCUSSIONThe deleterious effect of reperfusion on intestines and its exacerbation of the ischemic event is strongly suggested.<a class="elsevierStyleCrossRef" href="#bib10">10</a> The mechanism responsible for the injury caused by reperfusion is the formation of free oxygen radicals and the oxidative stress generated by these reactive oxygen species. In fact, the mechanism of injury is not fully understood, as there are other factors involved such as activation of phospholipase A2 and alterations of calcium flux. Chan et al. reported that third degree injury begins after only 15 mins of ischemia in the jejunum and after 60 mins in the ileum.<a class="elsevierStyleCrossRef" href="#bib11">11</a> Ischemia lasting more than 40 minutes can cause irreversible damage in the small intestine. Kurose et al. reported that ischemia lasting over 30 minutes does not cause a change in reperfusion.<a class="elsevierStyleCrossRef" href="#bib12">12</a> In order to avoid such a scenario, we used jejunal segments after 40 minutes of ischemia. As 40 minutes of ischemia is sufficient for creating ischemic injury and is less than the time needed for irreversible transmural infaction, the maximum grade of injury was found to be 4 in all groups. In the I/R group, the mean level of injury was 3.28 ± 0.95, which is similar to the results reported by Kazez et al. with the same scoring system.<a class="elsevierStyleCrossRef" href="#bib13">13</a> Schoenberg et al. showed that ischemia itself causes less injury within the same time period.<a class="elsevierStyleCrossRef" href="#bib3">3</a> Most of the systems used for grading the injury were qualitative or semi-quantitative.<a class="elsevierStyleCrossRef" href="#bib8">8</a> Quadeckers et al. studied the different grading methods and reported that the Park and Chiu method for grading injury has advantages over the others becasue it minimizes examiner-based differences in pathological examination and detailed structural aspects.<a class="elsevierStyleCrossRef" href="#bib8">8</a> Park’s classification alone is not able to take the villous and crypt injury into account.<a class="elsevierStyleCrossRef" href="#bib8">8</a> Apoptosis is also a valuable area of study for estimating tissue injury, and has become more popular in recent years.<a class="elsevierStyleCrossRef" href="#bib14">14</a>The histopathological results of the study are also supported by the increase in the tissue MDA levels. The MDA levels of normal intestinal tissue in the sham group were found to be 3.71 ± 1.38 nmol/gr of tissue, which increased to 14.42 ± 2,50 nmol/gr of tissue in the I/R group. These results demonstrate the correlation of histological and biochemical markers of the tissue injury. Lipid peroxidation results from the reaction of reactive oxygen metabolites, especially the hydroxyl and hydroperoxyl radicals with the membrane bound polyunsaturated fatty acids with a loss of a carbon radical and its rearrangement for formation of a conjugated diene. This conjugated form reacts immediately with oxygen to form peroxide radicals. Peroxide radicals initiate a chain reaction by removing a hydrogen atom from the other fatty acids. The end product of this reaction is tissue MDA and hydroperoxide.<a class="elsevierStyleCrossRef" href="#bib17">17</a>The spectrophotometric analysis of this tissue MDA is an important marker of in vivo lipid peroxidation. The other lipid peroxidation products used for the same purpose are conjugated dienes, endoperoxidases and hydrogen peroxidase. Many investigators used tissue MDA as a marker of lipid peroxidation in ischemic tissue,<a class="elsevierStyleCrossRef" href="#bib7">7</a>,<a class="elsevierStyleCrossRef" href="#bib15">15</a>,<a class="elsevierStyleCrossRef" href="#bib16">16</a> although there are some limitations of the procedure. There are more specific assay methods including C11-BODIPY that may be studied where available. Estimation of the tissue MDA reacting with amine groups on the phospholipids by photometric analysis of the fluorescent effect is the most frequently used method, as performed here. <a class="elsevierStyleCrossRef" href="#bib18">18</a>,<a class="elsevierStyleCrossRef" href="#bib19">19</a>Increasing the level of NO production is thought to decrease the reperfusion injury of the post-ischemic intestine via the increase in the tissue perfusion or by protecting the mucosa from the high levels of the cytotoxic agent superoxide.<a class="elsevierStyleCrossRef" href="#bib20">20</a> Increasing the perfusion is an important factor, because dilution provides buffering of the acidic lamina propria of reperfused intestine and cleansing of the media from the toxins passing through the epithelium. Investigations into the mechanism of the I/R effect on NO production on the post-ischemic intestine revealed that reperfusion following 20 minutes of occlusion of the superior mesenteric artery causes a decrease in nitrite/nitrate levels, which is explained by the inhibition or inactivation of the NOS.<a class="elsevierStyleCrossRef" href="#bib12">12</a> Increased production of superoxide in post-ischemic tissue is also responsible for minimizing the effect of endothelium-derived NO. The half-life of NO is very short (about 6 seconds) and the basic mechanism of this short half-life is thought to be the reaction with superoxide, as the half-life of NO increases in samples treated with superoxide dismutase.<a class="elsevierStyleCrossRef" href="#bib21">21</a>As the endogenous production and the use of nitric oxide decreases after I/R, the importance of exogenous NO is better understood. Mason et al. reported the increase in free oxygen radicals after the decrease of tissue NO levels.<a class="elsevierStyleCrossRef" href="#bib22">22</a> Endogenous NO can inhibit or delay the injury caused by the free oxygen radicals in the early periods of I/R. The results of the previous studies revealed that nitric oxide donors might cause vasodilatation and scavenge the free oxygen radicals, the major cause of injury in reperfusion injury. However, the function of NO is still not fully understood as NO reacts with superoxide anion to form peroxynitrite anion (ONOO2), a highly reactive oxidizing agent capable of causing tissue damage.Payne and Kubes studied the permeability of intestines with I/R injury treated with SIN 1, CAS-754 and nitroprusside, and reported a significant decrease in permeability even in the presence of the NOS inhibitor L-NAME.<a class="elsevierStyleCrossRef" href="#bib20">20</a> NO released by the donor compounds not only inactivates the superoxide radicals, the product of hypoxantine-xantine pathway, but also has a direct inhibitory effect on inflammatory cells. The inhibitory effect of NO on neutrophils and mast cells occurs via the inhibition of neutrophil adhesion, migration and aggregation and blocking the histamine release from the mast cells.SNP is a cost effective and easily accessible compound. In our study, intraperitoneal use of the compound resulted in a significant decrease in the level of tissue injury, as seen both histopathologically and by the changes in tissue MDA levels with respect to the control group. This significant decrease in both SNP and SNP+L-NAME groups convinced us that SNP administered intraperitoneally can supply enough NO concentration in the tissues. SNP acts not only by inactivating the superoxide radicals and suppressing the inflammatory response, but can also cause vasodilatation of the constricted vessels after ischemia. On the other hand, it should also be noted that SNP is a disodium salt of nitroprusside (Na2[Fe(CN)5NO]·2H2O) with a central iron molecule surrounded by one nitric oxide and five cyanide ligands. Wang et al. presented evidence that SNP donates iron to cells. The increase in intracellular iron is another cause of oxidative injury.L-NAME is a NOS inhibitor. It inhibits both Ca2+ dependent neuronal nitric oxide synthase (nNOS) and Ca2+ independent inducible nitric oxide synthase (iNOS).<a class="elsevierStyleCrossRef" href="#bib23">23</a> Luo et al. reported that L-NAME reduces the I/R injury by inhibiting the endogenous NO.<a class="elsevierStyleCrossRef" href="#bib24">24</a> Kurose et al. showed that L-NAME causes the formation of platelet-leukocyte aggregates, and reported that decreased NO production caused an increase in aggregate formation.<a class="elsevierStyleCrossRef" href="#bib11">11</a> P-selectin specific monoclonal antibodies were thought to be the main factors of this aggregate formation. NO donors hinder platelet-leukocyte aggregate formation by blocking P-selectin function on the I/R activated platelet surface.We studied the L-NAME and L-NAME+SNP groups separately to compare the effects of exogenous NO. We did not find any difference neither between the I/R and L-NAME groups nor between SNP and SNP+L-NAME groups. This can be explained by a significant decrease in NO levels due to NOS inactivation and superoxide related NO inactivation after 40 minutes of ischemia followed by reperfusion.In summary, this experimental I/R model showed us that intraperitoneal administration of SNP may be beneficial in reducing I/R injury." "textoCompletoSecciones" => array:1 [ "secciones" => array:6 [ 0 => array:2 [ "identificador" => "xpalclavsec1585152" "titulo" => "KEYWORDS" ] 1 => array:2 [ "identificador" => "cesec10" "titulo" => "INTRODUCTION" ] 2 => array:3 [ "identificador" => "cesec20" "titulo" => "MATERIALS AND METHODS" "secciones" => array:5 [ 0 => array:2 [ "identificador" => "cesec30" "titulo" => "Ethics" ] 1 => array:2 [ "identificador" => "cesec40" "titulo" => "Study design" ] 2 => array:2 [ "identificador" => "cesec50" "titulo" => "Pathological examination" ] 3 => array:2 [ "identificador" => "cesec60" "titulo" => "Tissue malonyldialdehyde (MDA) level" ] 4 => array:2 [ "identificador" => "cesec70" "titulo" => "Statistics" ] ] ] 3 => array:3 [ "identificador" => "cesec80" "titulo" => "RESULTS" "secciones" => array:5 [ 0 => array:2 [ "identificador" => "cesec90" "titulo" => "Control Group" ] 1 => array:2 [ "identificador" => "cesec100" "titulo" => "I/R Group" ] 2 => array:2 [ "identificador" => "cesec110" "titulo" => "SNP Group" ] 3 => array:2 [ "identificador" => "cesec120" "titulo" => "L-NAME Group" ] 4 => array:2 [ "identificador" => "cesec130" "titulo" => "SNP+L-NAME Group" ] ] ] 4 => array:2 [ "identificador" => "cesec140" "titulo" => "DISCUSSION" ] 5 => array:1 [ "titulo" => "REFERENCES" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2007-10-03" "fechaAceptado" => "2007-10-25" "PalabrasClave" => array:1 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "KEYWORDS" "identificador" => "xpalclavsec1585152" "palabras" => array:5 [ 0 => "Ischemia" 1 => "Reperfusion" 2 => "Intestine" 3 => "Sodium nitroprusside" 4 => "Rat" ] ] ] ] "tieneResumen" => true "resumen" => array:1 [ "en" => array:2 [ "resumen" => "AIMThe aim of this study was to investigate the efficacy of sodium nitroprusside in the reduction of the intestinal ischemia-reperfusion injury as a nitric oxide donor after intraperitoneal administration. METHODSThe histopathological examinations and tissue malonyldialdehyde levels of 35 Wistar albino rats that were subjected to ischemia-reperfusion, were performed in 5 groups. The groups include Control, Ischemia-reperfusion, Sodium nitroprusside, NG-Nitro-L-Arginine Methyl Ester (L-NAME) and Sodium nitroprusside+L-NAME. Each rat was subjected to ischemia for 40 minutes and reperfusion for 30 minutes, except the control group. The medications were done intraperitoneally as saline 4 ml/kg, Sodium nitroprusside 5 mg/kg, L-NAME 10 mg/kg just before reperfusions. RESULTSSignificant tissue injury in histological sections and an increase in tissue levels of Malonyldialdehyde was detected in the I/R group. The efficacy of intraperitoneal administration of Sodium nitroprusside in both Sodium nitroprusside alone and Sodium nitroprusside+L-NAME groups was found statistically significant for the reducing of injury scores (p<0.05). The difference between the Ischemia/reperfusion and Sodium nitroprusside groups was found statistically significant as in the Ischemia/reperfusion and Sodium nitroprusside+L-NAME groups due to the tissue Malonyldialdehyde levels (p<0.05). There was no statistical difference between Ischemia/reperfusion and L-NAME groups. CONCLUSIONIschemia/reperfusion induced injury might be reduced by the intraperitoneal administration of Sodium nitroprusside, even in the presence of L-NAME, in the rat intestinal model." "secciones" => array:4 [ 0 => array:2 [ "identificador" => "ceabs10" "titulo" => "AIM" ] 1 => array:2 [ "identificador" => "ceabs20" "titulo" => "METHODS" ] 2 => array:2 [ "identificador" => "ceabs30" "titulo" => "RESULTS" ] 3 => array:2 [ "identificador" => "ceabs40" "titulo" => "CONCLUSION" ] ] ] ] "multimedia" => array:8 [ 0 => array:7 [ "identificador" => "fig1" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 686 "Ancho" => 994 "Tamanyo" => 60190 ] ] "descripcion" => array:1 [ "en" => "Histological appearance of the control group (H&E x 40)." ] ] 1 => array:7 [ "identificador" => "fig2" "etiqueta" => "Figure 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr2.jpeg" "Alto" => 687 "Ancho" => 993 "Tamanyo" => 94695 ] ] "descripcion" => array:1 [ "en" => "Histological appearance of the I/R group. Villous epithelial separation, luminal epithelial seeding and naked subepithelial areas (H&E x100)." ] ] 2 => array:7 [ "identificador" => "fig3" "etiqueta" => "Figure 3" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr3.jpeg" "Alto" => 723 "Ancho" => 993 "Tamanyo" => 70796 ] ] "descripcion" => array:1 [ "en" => "Histological appearance of the SNP group. A contact epithelial lining except for some subepithelial spacings (H&E x 40)." ] ] 3 => array:7 [ "identificador" => "fig4" "etiqueta" => "Figure 4" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr4.jpeg" "Alto" => 689 "Ancho" => 995 "Tamanyo" => 69754 ] ] "descripcion" => array:1 [ "en" => "Histological appearance of the L-NAME group. Epithelial separations and luminal epithelial seeding is obvious (H&E x 40)." ] ] 4 => array:7 [ "identificador" => "fig5" "etiqueta" => "Figure 5" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr5.jpeg" "Alto" => 685 "Ancho" => 993 "Tamanyo" => 63697 ] ] "descripcion" => array:1 [ "en" => "Histological appearance of the SNP+L-NAME group. An increase in the amount of subepithelial spaces and epithelial separations (H&E x100)." ] ] 5 => array:7 [ "identificador" => "tbl1" "etiqueta" => "Table 1" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "tabla" => array:1 [ "tablatextoimagen" => array:1 [ 0 => array:1 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col"> \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Control group \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">I/R group** \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">SNP group* \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">L-NAME group** \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">SNP+L-NAME group* \t\t\t\t\t\t\n \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1.Rat \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2.Rat \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3.Rat \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4.Rat \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">5.Rat \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">6.Rat \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7.Rat \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Total Score \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">23 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">10 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">23 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">14 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t" style="border-bottom: 2px solid black">Mean ± SD \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" style="border-bottom: 2px solid black">0±0.0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" style="border-bottom: 2px solid black">3.28±0.48 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" style="border-bottom: 2px solid black">1.42±0.53 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" style="border-bottom: 2px solid black">3.28±0.95 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" style="border-bottom: 2px solid black">2.0±0.81 \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] "descripcion" => array:1 [ "en" => "The histological injury scores according to the criteria of Park and Chiu." ] ] 6 => array:7 [ "identificador" => "tbl2" "etiqueta" => "Table 2" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "tabla" => array:1 [ "tablatextoimagen" => array:1 [ 0 => array:1 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col"> \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">n \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Mean \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">SD \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Minimum \t\t\t\t\t\t\n \t\t\t\t\t\t</th><th class="td" title="\n \t\t\t\t\ttable-head\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t" scope="col">Maximum \t\t\t\t\t\t\n \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Control group \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3.71 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1.38 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">6 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">I/R group** \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">14.42 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">2.50 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">11.00 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">18.00 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">SNP group* \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">8.85 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1.06 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7.00 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">10.00 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">L-NAME group** \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">12.85 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">3.53 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">8.00 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">17.00 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">SNP+L-NAME group* \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">9.42 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">1.27 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">7.00 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="center" valign="\n \t\t\t\t\ttop\n \t\t\t\t">11.00 \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] "descripcion" => array:1 [ "en" => "Tissue Malonyl dialdehyde levels of the groups (nmol/gr tissue)." ] ] 7 => array:5 [ "identificador" => "tbl1a" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => false "mostrarDisplay" => true "tabla" => array:1 [ "tablatextoimagen" => array:1 [ 0 => array:1 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><tbody title="tbody"><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Group 1 (Control) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Laparatomy \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " colspan="2" align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t"></td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Group 2 (I/R) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Ischemia40 min. \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Saline(4 ml/kg i.p.) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Reperfusion30 min \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Group 3 (SNP) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Ischemia40 min. \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">SNP(5 mg/kg i.p.) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Reperfusion30 min \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Group 4 (L-NAME) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Ischemia40 min. \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">L-NAME(10 mg/kg i.p.) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Reperfusion30 min \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Group 5 (SNP + L-NAME) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Ischemia40 min. \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">SNP(5 mg/kg i.p.)+L-NAME(10 mg/kg i.p.) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="\n \t\t\t\t\ttable-entry\n \t\t\t\t " align="left" valign="\n \t\t\t\t\ttop\n \t\t\t\t">Reperfusion30 min \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] ] ] ] ] ] "bibliografia" => array:2 [ "titulo" => "REFERENCES" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "cebibsec10" "bibliografiaReferencia" => array:24 [ 0 => array:3 [ "identificador" => "bib1" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Schemes against ischemia; solutions for reperfusion (injury)?" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:1 [ 0 => """ PS Barie \n \t\t\t\t\t\t\t\t """ ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1097/00003246-199904000-00009" "Revista" => array:6 [ "tituloSerie" => "Crit Care Med" "fecha" => "1999" "volumen" => "27" "paginaInicial" => "684" "paginaFinal" => "685" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10321649" "web" => "Medline" ] ] ] ] ] ] ] ] 1 => array:3 [ "identificador" => "bib2" "etiqueta" => "2" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Oxygen radicals, lipid peroxidation, and permeability changes after intestinal ischemia and reperfusion" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:2 [ 0 => """ JW Horton \n \t\t\t\t\t\t\t\t """ 1 => """ PB Walker \n \t\t\t\t\t\t\t\t """ ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1152/jappl.1993.74.4.1515" "Revista" => array:6 [ "tituloSerie" => "J Appl Physiol" "fecha" => "1993" "volumen" => "74" "paginaInicial" => "1515" "paginaFinal" => "1520" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/8514664" "web" => "Medline" ] ] ] ] ] ] ] ] 2 => array:3 [ "identificador" => "bib3" "etiqueta" => "3" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Reperfusion injury after intestinal ischemia" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:2 [ 0 => """ MH Schoenberg \n \t\t\t\t\t\t\t\t """ 1 => """ HG Beger \n \t\t\t\t\t\t\t\t """ ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1097/00003246-199309000-00023" "Revista" => array:6 [ "tituloSerie" => "Crit Care Med" "fecha" => "1993" "volumen" => "21" "paginaInicial" => "1376" "paginaFinal" => "1386" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/8370303" "web" => "Medline" ] ] ] ] ] ] ] ] 3 => array:3 [ "identificador" => "bib4" "etiqueta" => "4" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Role of endogenous endothelin peptides in intestinal ischemia-reperfusion injury in rats" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:4 [ 0 => """ AZ Anadol \n \t\t\t\t\t\t\t\t """ 1 => """ O Bayram \n \t\t\t\t\t\t\t\t """ 2 => """ A Dursun \n \t\t\t\t\t\t\t\t """ 3 => """ S Ercan \n \t\t\t\t\t\t\t\t """ ] ] ] ] ] "host" => array:1 [ 0 => array:1 [ "Revista" => array:5 [ "tituloSerie" => "Prostaglandins Leucot Essent Fatty Acids" "fecha" => "1998" "volumen" => "59" "paginaInicial" => "279" "paginaFinal" => "283" ] ] ] ] ] ] 4 => array:3 [ "identificador" => "bib5" "etiqueta" => "5" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Nitric oxide: initiator and modulator" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:2 [ 0 => """ FP Nijkamp \n \t\t\t\t\t\t\t\t """ 1 => """ G Folkerts \n \t\t\t\t\t\t\t\t """ ] ] ] ] ] "host" => array:1 [ 0 => array:1 [ "Revista" => array:6 [ "tituloSerie" => "Clin Exp Allergy" "fecha" => "1997" "volumen" => "27" "paginaInicial" => "347" "paginaFinal" => "350" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/9146924" "web" => "Medline" ] ] ] ] ] ] ] ] 5 => array:3 [ "identificador" => "bib6" "etiqueta" => "6" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Endothelial nitric oxide in humans in health and disease" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:2 [ 0 => """ P Vallance \n \t\t\t\t\t\t\t\t """ 1 => """ A Hingorani \n \t\t\t\t\t\t\t\t """ ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1046/j.1365-2613.1999.00137.x" "Revista" => array:6 [ "tituloSerie" => "Int J Exp Pathol" "fecha" => "1999" "volumen" => "80" "paginaInicial" => "291" "paginaFinal" => "303" "link" => 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"web" => "Medline" ] ] ] ] ] ] ] ] 7 => array:3 [ "identificador" => "bib8" "etiqueta" => "8" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "An evaluation of methods for grading histologic injury following ischemia/ reperfusion of the small bowel" "autores" => array:1 [ 0 => array:2 [ "etal" => true "autores" => array:6 [ 0 => """ JS Quaedackers \n \t\t\t\t\t\t\t\t """ 1 => """ RJ Beuk \n \t\t\t\t\t\t\t\t """ 2 => """ L Bennet \n \t\t\t\t\t\t\t\t """ 3 => """ A Charlton \n \t\t\t\t\t\t\t\t """ 4 => """ MG oude Egbrink \n \t\t\t\t\t\t\t\t """ 5 => """ AJ Gunn \n \t\t\t\t\t\t\t\t """ ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/s0041-1345(00)01238-0" "Revista" => array:6 [ "tituloSerie" => "Transplant Proc" "fecha" => "2000" "volumen" => "32" "paginaInicial" => "1307" "paginaFinal" => "1310" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10995960" "web" => "Medline" ] ] ] ] ] ] ] ] 8 => 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Ali Emre, Orhan Bayram, Bulent Salman, Sevim Ercan, Ziya Anadol, Okhan Akin

Zonguldak Karaelmas University, General Surgery – Turkey

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      "titulo" => "Anatomical Variation of Radial Wrist Extensor Muscles&#58; A Study in Cadavers"
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    "titulo" => "Sodium Nitroprusside as a Nitric Oxide Donor in a Rat Intestinal Ischemia-Reperfusion Model"
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          "en" => "<p id="spara20" class="elsevierStyleSimplePara elsevierViewall">Histological appearance of the I&#47;R group&#46; Villous epithelial separation&#44; luminal epithelial seeding and naked subepithelial areas &#40;H&#38;E x100&#41;&#46;</p>"
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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="cesec10" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle60">INTRODUCTION</span><p id="para10" class="elsevierStylePara elsevierViewall">It is a well known phenomenon that reperfusion is as dangerous for the tissues as ischemia&#44; particularly in the heart and the intestines&#46;<a class="elsevierStyleCrossRef" href="#bib1">1</a> Intestinal ischemia is a result of systemic factors &#40;hypovolemia&#44; hypotension&#44; hypoxia&#44; sepsis&#41; or local factors &#40;mechanical obstruction of the intestine or the intestinal vessels&#41;&#46; The restored circulation results in the formation of free oxygen radicals and other acute phase reactants&#46; Resulting cellular death occurs via the lipid peroxydation of the cell wall&#46;<a class="elsevierStyleCrossRef" href="#bib2">2</a>&#44;<a class="elsevierStyleCrossRef" href="#bib3">3</a></p><p id="para20" class="elsevierStylePara elsevierViewall">The role of endogenous endothelin peptides in the intestinal ischemia-reperfusion &#40;I&#47;R&#41; model has been well studied&#46;<a class="elsevierStyleCrossRef" href="#bib4">4</a> Although the exact mechanism is still not fully understood&#44; investigations on nitric oxide &#40;NO&#41;&#44; an endothelial-derived relaxation factor&#44; revealed its importance in the management of I&#47;R injury&#46; <a class="elsevierStyleCrossRef" href="#bib5">5</a>&#44;<a class="elsevierStyleCrossRef" href="#bib6">6</a> NO inhibits lipid peroxidation via the lipophilic free radical effect&#46;<a class="elsevierStyleCrossRef" href="#bib7">7</a> There are many studies concerning NO agonists and antagonists&#44; but the main concern in recent years has been NO donors releasing exogenous NO&#46; 3-morpholinosydnonimine &#40;SIN-1&#41;&#44; spermine NO&#44; diethanolamine nitric oxide &#40;DEA&#47;NO&#41;&#44; S-nitroso-N-acetylpenicillamine &#40;SNAP&#41;&#44; FK409&#44; S-nitrosoglutatione &#40;GSNO&#41;&#44; NOC5&#44; NOC12&#44; CAS 754&#44; and Gliseryl trinitrate are the major products used&#46;<a class="elsevierStyleCrossRef" href="#bib1">1</a>&#44;<a class="elsevierStyleCrossRef" href="#bib7">7</a></p><p id="para30" class="elsevierStylePara elsevierViewall">Sodium Nitroprusside &#40;SNP&#41; is another nitric oxide donor investigated for its intravascular and intraluminal effects on ischemia reperfusion injury&#46; We investigated the effects of NO in I&#47;R injury with the commercially available and inexpensive product sodium nitroprusside &#40;SNP&#41; administered intraperitoneally in a rat intestinal model&#46;</p></span><span id="cesec20" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle70">MATERIALS AND METHODS</span><span id="cesec30" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle80">Ethics</span><p id="para40" class="elsevierStylePara elsevierViewall">This study was performed in the investigation laboratories of Gazi University with the permission of the Gazi University Ethical Committee&#46;</p></span><span id="cesec40" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle90">Study design</span><p id="para50" class="elsevierStylePara elsevierViewall">The study was conducted with 35 male Wistar albino rats weighing between 200&#8211;230 grams&#44; divided into 5 groups&#46; Rats were fed standard food until the last 12 hours of the study and were given water ad libitum&#46; A midline incision was performed and the superior mesenteric artery was clamped for 40 minutes to create ischemia&#46; Intestinal segments were taken into the abdominal cavity and a light source was used to avoid hypothermia&#46; All medications were administered intraperitoneally &#40;i&#46;p&#41; immediately before removal of the superior mesenteric artery clamp&#44; and the intestines were allowed to reperfuse for 30 minutes after the abdominal wall was closed&#46;</p><p id="para60" class="elsevierStylePara elsevierViewall">The groups are designed as&#58;<elsevierMultimedia ident="tbl1a"></elsevierMultimedia></p><p id="para70" class="elsevierStylePara elsevierViewall">In the SNP group&#44; Sodium Nitroprusside &#40;Nipruss&#44; ADEKA&#41; was given i&#46;p&#46; at 5 mg&#47;kg&#59; in the N<span class="elsevierStyleSup">G</span>-Nitro-<span class="elsevierStyleItalic">L</span>-Arginin Methyl Ester &#40;L-NAME&#41; group&#44; L-NAME was given i&#46;p&#46; at 10 mg&#47;kg &#40;Sigma Chemical Co&#41;&#46; In the SNP&#43;L-NAME group&#44; SNP and L-NAME were given i&#46;p&#46; at 5 mg&#47;kg and 10 mg&#47;kg&#44; respectively</p><p id="para80" class="elsevierStylePara elsevierViewall">Intestinal tissue samples taken from the jejunum 30 minutes after the reperfusion were preserved in 10&#37; formaline solution for histopathological examinations and snap frozen in liquid nitrogen and then stored at &#8211;80&#176;C for tissue MDA level determination&#46;</p></span><span id="cesec50" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle100">Pathological examination</span><p id="para90" class="elsevierStylePara elsevierViewall">Tissue samples were examined under the light microscope after haemotoxyleneosine &#40;H&#38;E&#41; staining using the criteria reported by Park and Chiu&#46;<a class="elsevierStyleCrossRef" href="#bib8">8</a> Briefly&#44; &#91;0&#93; was described as normal mucosa&#44; &#91;1&#93; as subepithelial space at villus tips&#44; &#91;2&#93; as extension of subepithelial space with moderate lifting&#44; &#91;3&#93; as massive lifting down sides of villi&#44; with some denuded tips&#44; &#91;4&#93; as denuded villi&#44; dilated capillaries&#44; &#91;5&#93; as disintegration of lamina propria&#44; &#91;6&#93; as crypt layer injury&#44; &#91;7&#93; as transmucosal infarction and &#91;8&#93; as transmural infarction&#46;</p></span><span id="cesec60" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle110">Tissue malonyldialdehyde &#40;MDA&#41; level</span><p id="para100" class="elsevierStylePara elsevierViewall">Tissue MDA levels were studied as reported by Uchiyama et al&#46;<a class="elsevierStyleCrossRef" href="#bib9">9</a> Tissue samples were homogenized with 1&#46;15&#37; cold KCL&#44; and then 1&#37; phosphoric acid and 0&#46;6&#37; thiobarbituric acid were added sequentially&#46; After boiling in a water bath for 45 minutes&#44; n-buthanol was added&#46; The material was centrifuged at 2500 rpm for 5 minutes and spectrophotometric determinations were performed at 535 and 520 nm&#46; The results are given as nmol&#47;gr of tissue&#46;</p></span><span id="cesec70" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle120">Statistics</span><p id="para110" class="elsevierStylePara elsevierViewall">Tissue MDA levels and the results of the pathological examinations were subjected to the Kruskal-Wallis test&#46; Post-hoc multiple comparison test &#40;Bonferroni&#41; was also performed in order to find significant differences between groups&#46; Values of p&#60;0&#46;05 were accepted as significant&#46;</p></span></span><span id="cesec80" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle130">RESULTS</span><p id="para120" class="elsevierStylePara elsevierViewall">There is a significant difference between groups according to Kruskal-Wallis variance analysis &#40;p&#60;0&#46;001&#41;&#46; The histopathological scores are displayed in <a class="elsevierStyleCrossRef" href="#tbl1">Table 1</a></p><elsevierMultimedia ident="tbl1"></elsevierMultimedia><span id="cesec90" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle140">Control Group</span><p id="para130" class="elsevierStylePara elsevierViewall">The mean histopathological injury score in the control group is 0&#46; The histological appearance of the control group is shown in <a class="elsevierStyleCrossRef" href="#fig1">Figure 1</a>&#46;</p><elsevierMultimedia ident="fig1"></elsevierMultimedia></span><span id="cesec100" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle150">I&#47;R Group</span><p id="para140" class="elsevierStylePara elsevierViewall">In the samples of the I&#47;R group&#44; the mean score of injury is 3&#46;28 &#177; 0&#46;48&#46; Histopathological examination reveals significant villous epithelial separation&#44; luminal epithelial seeding and naked subepithelial areas &#40;<a class="elsevierStyleCrossRef" href="#fig2">Figure 2</a>&#41;&#46;</p><elsevierMultimedia ident="fig2"></elsevierMultimedia></span><span id="cesec110" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle160">SNP Group</span><p id="para150" class="elsevierStylePara elsevierViewall">In the SNP group&#44; the mean injury score is 1&#46;43 &#177; 0&#46;53&#44; and a contact epithelial lining&#44; except with some subepithelial spacings&#44; is observed upon histopathological examination &#40;<a class="elsevierStyleCrossRef" href="#fig3">Figure 3</a>&#41;&#46;</p><elsevierMultimedia ident="fig3"></elsevierMultimedia></span><span id="cesec120" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle170">L-NAME Group</span><p id="para160" class="elsevierStylePara elsevierViewall">In the L-NAME group&#44; where endogenous NO synthesis is thought to be inhibited&#44; the mean score of injury is 3&#46;28 &#177; 0&#46;95&#44; as in the I&#47;R group&#46; Similar to the I&#47;R group&#44; free mucosal cell particles can be seen in the lumen and epithelial layer separations are obvious &#40;<a class="elsevierStyleCrossRef" href="#fig4">Figure 4</a>&#41;&#46;</p><elsevierMultimedia ident="fig4"></elsevierMultimedia></span><span id="cesec130" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle180">SNP&#43;L-NAME Group</span><p id="para170" class="elsevierStylePara elsevierViewall">In the SNP&#43;L-NAME group&#44; the mean score of injury is 2&#46;0 &#177; 0&#46;81&#46; Pathological examination revealed an increase in the amount of subepithelial spaces and epithelial separations in this group &#40;<a class="elsevierStyleCrossRef" href="#fig5">Figure 5</a>&#41;&#46;</p><elsevierMultimedia ident="fig5"></elsevierMultimedia><p id="para180" class="elsevierStylePara elsevierViewall">Statistical analysis of the data with the Mann-Whitney U test shows that the I&#47;R group is statistically significantly different than the SNP and the SNP&#43;L-NAME groups &#40;p&#60; 0&#46;05&#41;&#46; The difference is not significant between either the I&#47;R group and the L-NAME group or the SNP and the SNP&#43;L-NAME group&#46; There is also a statistically significant difference between the L-NAME group and the SNP group&#44; and between the L-NAME group and the SNP&#43;L-NAME group &#40;p&#60;0&#46;05&#41;&#46;</p><p id="para190" class="elsevierStylePara elsevierViewall">Tissue MDA levels are displayed in <a class="elsevierStyleCrossRef" href="#tbl2">Table 2</a></p><elsevierMultimedia ident="tbl2"></elsevierMultimedia><p id="para200" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">In the Sham Group&#44; the</span> tissue MDA level is 3&#46;71 &#177; 1&#46;38 nmol&#47;gr of tissue&#46;</p><p id="para210" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">In the I&#47;R Group&#44;</span> I&#47;R injury to the intestinal tissues results in a significant increase in MDA levels&#46; The mean MDA level in this group is 14&#46;42 &#177; 2&#46;50 nmol&#47;gr of tissue&#46;</p><p id="para220" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">In the SNP Group&#44;</span> the mean MDA level is significantly decreased to 8&#46;85&#177;1&#46;06 nmol&#47;gr of tissue&#46; There is no difference between the SNP and SNP&#43;L-NAME groups&#44; although the difference between the MDA levels of the SNP and L-NAME groups are again statistically significant &#40;p&#60;0&#46;05&#41;&#46;</p><p id="para230" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">In the L-NAME Group&#44;</span> the mean tissue MDA level is 12&#46;85 &#177; 3&#46;53 nmol&#47;gr of tissue&#46; There is no difference between the L-NAME and I&#47;R groups&#46;</p><p id="para240" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">In the SNP&#43;L-NAME Group&#44; t</span>he mean MDA level is 9&#46;42 &#177; 1&#46;27nmol&#47;gr of tissue and the difference compared with the L-NAME group is statistically significant &#40;p&#60;0&#46;05&#41;&#46;</p></span></span><span id="cesec140" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle190">DISCUSSION</span><p id="para250" class="elsevierStylePara elsevierViewall">The deleterious effect of reperfusion on intestines and its exacerbation of the ischemic event is strongly suggested&#46;<a class="elsevierStyleCrossRef" href="#bib10">10</a> The mechanism responsible for the injury caused by reperfusion is the formation of free oxygen radicals and the oxidative stress generated by these reactive oxygen species&#46; In fact&#44; the mechanism of injury is not fully understood&#44; as there are other factors involved such as activation of phospholipase A2 and alterations of calcium flux&#46; Chan et al&#46; reported that third degree injury begins after only 15 mins of ischemia in the jejunum and after 60 mins in the ileum&#46;<a class="elsevierStyleCrossRef" href="#bib11">11</a> Ischemia lasting more than 40 minutes can cause irreversible damage in the small intestine&#46; Kurose et al&#46; reported that ischemia lasting over 30 minutes does not cause a change in reperfusion&#46;<a class="elsevierStyleCrossRef" href="#bib12">12</a> In order to avoid such a scenario&#44; we used jejunal segments after 40 minutes of ischemia&#46; As 40 minutes of ischemia is sufficient for creating ischemic injury and is less than the time needed for irreversible transmural infaction&#44; the maximum grade of injury was found to be 4 in all groups&#46; In the I&#47;R group&#44; the mean level of injury was 3&#46;28 &#177; 0&#46;95&#44; which is similar to the results reported by Kazez et al&#46; with the same scoring system&#46;<a class="elsevierStyleCrossRef" href="#bib13">13</a> Schoenberg et al&#46; showed that ischemia itself causes less injury within the same time period&#46;<a class="elsevierStyleCrossRef" href="#bib3">3</a> Most of the systems used for grading the injury were qualitative or semi-quantitative&#46;<a class="elsevierStyleCrossRef" href="#bib8">8</a> Quadeckers et al&#46; studied the different grading methods and reported that the Park and Chiu method for grading injury has advantages over the others becasue it minimizes examiner-based differences in pathological examination and detailed structural aspects&#46;<a class="elsevierStyleCrossRef" href="#bib8">8</a> Park&#8217;s classification alone is not able to take the villous and crypt injury into account&#46;<a class="elsevierStyleCrossRef" href="#bib8">8</a> Apoptosis is also a valuable area of study for estimating tissue injury&#44; and has become more popular in recent years&#46;<a class="elsevierStyleCrossRef" href="#bib14">14</a></p><p id="para260" class="elsevierStylePara elsevierViewall">The histopathological results of the study are also supported by the increase in the tissue MDA levels&#46; The MDA levels of normal intestinal tissue in the sham group were found to be 3&#46;71 &#177; 1&#46;38 nmol&#47;gr of tissue&#44; which increased to 14&#46;42 &#177; 2&#44;50 nmol&#47;gr of tissue in the I&#47;R group&#46; These results demonstrate the correlation of histological and biochemical markers of the tissue injury&#46; Lipid peroxidation results from the reaction of reactive oxygen metabolites&#44; especially the hydroxyl and hydroperoxyl radicals with the membrane bound polyunsaturated fatty acids with a loss of a carbon radical and its rearrangement for formation of a conjugated diene&#46; This conjugated form reacts immediately with oxygen to form peroxide radicals&#46; Peroxide radicals initiate a chain reaction by removing a hydrogen atom from the other fatty acids&#46; The end product of this reaction is tissue MDA and hydroperoxide&#46;<a class="elsevierStyleCrossRef" href="#bib17">17</a></p><p id="para270" class="elsevierStylePara elsevierViewall">The spectrophotometric analysis of this tissue MDA is an important marker of <span class="elsevierStyleItalic">in vivo</span> lipid peroxidation&#46; The other lipid peroxidation products used for the same purpose are conjugated dienes&#44; endoperoxidases and hydrogen peroxidase&#46; Many investigators used tissue MDA as a marker of lipid peroxidation in ischemic tissue&#44;<a class="elsevierStyleCrossRef" href="#bib7">7</a>&#44;<a class="elsevierStyleCrossRef" href="#bib15">15</a>&#44;<a class="elsevierStyleCrossRef" href="#bib16">16</a> although there are some limitations of the procedure&#46; There are more specific assay methods including C11-BODIPY that may be studied where available&#46; Estimation of the tissue MDA reacting with amine groups on the phospholipids by photometric analysis of the fluorescent effect is the most frequently used method&#44; as performed here&#46; <a class="elsevierStyleCrossRef" href="#bib18">18</a>&#44;<a class="elsevierStyleCrossRef" href="#bib19">19</a></p><p id="para280" class="elsevierStylePara elsevierViewall">Increasing the level of NO production is thought to decrease the reperfusion injury of the post-ischemic intestine via the increase in the tissue perfusion or by protecting the mucosa from the high levels of the cytotoxic agent superoxide&#46;<a class="elsevierStyleCrossRef" href="#bib20">20</a> Increasing the perfusion is an important factor&#44; because dilution provides buffering of the acidic lamina propria of reperfused intestine and cleansing of the media from the toxins passing through the epithelium&#46; Investigations into the mechanism of the I&#47;R effect on NO production on the post-ischemic intestine revealed that reperfusion following 20 minutes of occlusion of the superior mesenteric artery causes a decrease in nitrite&#47;nitrate levels&#44; which is explained by the inhibition or inactivation of the NOS&#46;<a class="elsevierStyleCrossRef" href="#bib12">12</a> Increased production of superoxide in post-ischemic tissue is also responsible for minimizing the effect of endothelium-derived NO&#46; The half-life of NO is very short &#40;about 6 seconds&#41; and the basic mechanism of this short half-life is thought to be the reaction with superoxide&#44; as the half-life of NO increases in samples treated with superoxide dismutase&#46;<a class="elsevierStyleCrossRef" href="#bib21">21</a></p><p id="para290" class="elsevierStylePara elsevierViewall">As the endogenous production and the use of nitric oxide decreases after I&#47;R&#44; the importance of exogenous NO is better understood&#46; Mason et al&#46; reported the increase in free oxygen radicals after the decrease of tissue NO levels&#46;<a class="elsevierStyleCrossRef" href="#bib22">22</a> Endogenous NO can inhibit or delay the injury caused by the free oxygen radicals in the early periods of I&#47;R&#46; The results of the previous studies revealed that nitric oxide donors might cause vasodilatation and scavenge the free oxygen radicals&#44; the major cause of injury in reperfusion injury&#46; However&#44; the function of NO is still not fully understood as NO reacts with superoxide anion to form peroxynitrite anion &#40;ONOO2&#41;&#44; a highly reactive oxidizing agent capable of causing tissue damage&#46;</p><p id="para300" class="elsevierStylePara elsevierViewall">Payne and Kubes studied the permeability of intestines with I&#47;R injury treated with SIN 1&#44; CAS-754 and nitroprusside&#44; and reported a significant decrease in permeability even in the presence of the NOS inhibitor L-NAME&#46;<a class="elsevierStyleCrossRef" href="#bib20">20</a> NO released by the donor compounds not only inactivates the superoxide radicals&#44; the product of hypoxantine-xantine pathway&#44; but also has a direct inhibitory effect on inflammatory cells&#46; The inhibitory effect of NO on neutrophils and mast cells occurs via the inhibition of neutrophil adhesion&#44; migration and aggregation and blocking the histamine release from the mast cells&#46;</p><p id="para310" class="elsevierStylePara elsevierViewall">SNP is a cost effective and easily accessible compound&#46; In our study&#44; intraperitoneal use of the compound resulted in a significant decrease in the level of tissue injury&#44; as seen both histopathologically and by the changes in tissue MDA levels with respect to the control group&#46; This significant decrease in both SNP and SNP&#43;L-NAME groups convinced us that SNP administered intraperitoneally can supply enough NO concentration in the tissues&#46; SNP acts not only by inactivating the superoxide radicals and suppressing the inflammatory response&#44; but can also cause vasodilatation of the constricted vessels after ischemia&#46; On the other hand&#44; it should also be noted that SNP is a disodium salt of nitroprusside &#40;Na<span class="elsevierStyleInf">2</span>&#91;Fe&#40;CN&#41;<span class="elsevierStyleInf">5</span>NO&#93;&#183;2H<span class="elsevierStyleInf">2</span>O&#41; with a central iron molecule surrounded by one nitric oxide and five cyanide ligands&#46; Wang et al&#46; presented evidence that SNP donates iron to cells&#46; The increase in intracellular iron is another cause of oxidative injury&#46;</p><p id="para320" class="elsevierStylePara elsevierViewall">L-NAME is a NOS inhibitor&#46; It inhibits both Ca<span class="elsevierStyleSup">2&#43;</span> dependent neuronal nitric oxide synthase &#40;nNOS&#41; and Ca<span class="elsevierStyleSup">2&#43;</span> independent inducible nitric oxide synthase &#40;iNOS&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib23">23</a> Luo et al&#46; reported that L-NAME reduces the I&#47;R injury by inhibiting the endogenous NO&#46;<a class="elsevierStyleCrossRef" href="#bib24">24</a> Kurose et al&#46; showed that L-NAME causes the formation of platelet-leukocyte aggregates&#44; and reported that decreased NO production caused an increase in aggregate formation&#46;<a class="elsevierStyleCrossRef" href="#bib11">11</a> P-selectin specific monoclonal antibodies were thought to be the main factors of this aggregate formation&#46; NO donors hinder platelet-leukocyte aggregate formation by blocking P-selectin function on the I&#47;R activated platelet surface&#46;</p><p id="para330" class="elsevierStylePara elsevierViewall">We studied the L-NAME and L-NAME&#43;SNP groups separately to compare the effects of exogenous NO&#46; We did not find any difference neither between the I&#47;R and L-NAME groups nor between SNP and SNP&#43;L-NAME groups&#46; This can be explained by a significant decrease in NO levels due to NOS inactivation and superoxide related NO inactivation after 40 minutes of ischemia followed by reperfusion&#46;</p><p id="para340" class="elsevierStylePara elsevierViewall">In summary&#44; this experimental I&#47;R model showed us that intraperitoneal administration of SNP may be beneficial in reducing I&#47;R injury&#46;</p></span></span>"
    "textoCompletoSecciones" => array:1 [
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        0 => array:2 [
          "identificador" => "xpalclavsec1585152"
          "titulo" => "KEYWORDS"
        ]
        1 => array:2 [
          "identificador" => "cesec10"
          "titulo" => "INTRODUCTION"
        ]
        2 => array:3 [
          "identificador" => "cesec20"
          "titulo" => "MATERIALS AND METHODS"
          "secciones" => array:5 [
            0 => array:2 [
              "identificador" => "cesec30"
              "titulo" => "Ethics"
            ]
            1 => array:2 [
              "identificador" => "cesec40"
              "titulo" => "Study design"
            ]
            2 => array:2 [
              "identificador" => "cesec50"
              "titulo" => "Pathological examination"
            ]
            3 => array:2 [
              "identificador" => "cesec60"
              "titulo" => "Tissue malonyldialdehyde &#40;MDA&#41; level"
            ]
            4 => array:2 [
              "identificador" => "cesec70"
              "titulo" => "Statistics"
            ]
          ]
        ]
        3 => array:3 [
          "identificador" => "cesec80"
          "titulo" => "RESULTS"
          "secciones" => array:5 [
            0 => array:2 [
              "identificador" => "cesec90"
              "titulo" => "Control Group"
            ]
            1 => array:2 [
              "identificador" => "cesec100"
              "titulo" => "I&#47;R Group"
            ]
            2 => array:2 [
              "identificador" => "cesec110"
              "titulo" => "SNP Group"
            ]
            3 => array:2 [
              "identificador" => "cesec120"
              "titulo" => "L-NAME Group"
            ]
            4 => array:2 [
              "identificador" => "cesec130"
              "titulo" => "SNP&#43;L-NAME Group"
            ]
          ]
        ]
        4 => array:2 [
          "identificador" => "cesec140"
          "titulo" => "DISCUSSION"
        ]
        5 => array:1 [
          "titulo" => "REFERENCES"
        ]
      ]
    ]
    "pdfFichero" => "main.pdf"
    "tienePdf" => true
    "fechaRecibido" => "2007-10-03"
    "fechaAceptado" => "2007-10-25"
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        0 => array:4 [
          "clase" => "keyword"
          "titulo" => "KEYWORDS"
          "identificador" => "xpalclavsec1585152"
          "palabras" => array:5 [
            0 => "Ischemia"
            1 => "Reperfusion"
            2 => "Intestine"
            3 => "Sodium nitroprusside"
            4 => "Rat"
          ]
        ]
      ]
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    "tieneResumen" => true
    "resumen" => array:1 [
      "en" => array:2 [
        "resumen" => "<span id="ceabs10" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle10">AIM</span><p id="spara80" class="elsevierStyleSimplePara elsevierViewall">The aim of this study was to investigate the efficacy of sodium nitroprusside in the reduction of the intestinal ischemia-reperfusion injury as a nitric oxide donor after intraperitoneal administration&#46;</p></span> <span id="ceabs20" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle20">METHODS</span><p id="spara90" class="elsevierStyleSimplePara elsevierViewall">The histopathological examinations and tissue malonyldialdehyde levels of 35 Wistar albino rats that were subjected to ischemia-reperfusion&#44; were performed in 5 groups&#46; The groups include Control&#44; Ischemia-reperfusion&#44; Sodium nitroprusside&#44; NG-Nitro-L-Arginine Methyl Ester &#40;L-NAME&#41; and Sodium nitroprusside&#43;L-NAME&#46; Each rat was subjected to ischemia for 40 minutes and reperfusion for 30 minutes&#44; except the control group&#46; The medications were done intraperitoneally as saline 4 ml&#47;kg&#44; Sodium nitroprusside 5 mg&#47;kg&#44; L-NAME 10 mg&#47;kg just before reperfusions&#46;</p></span> <span id="ceabs30" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle30">RESULTS</span><p id="spara100" class="elsevierStyleSimplePara elsevierViewall">Significant tissue injury in histological sections and an increase in tissue levels of Malonyldialdehyde was detected in the I&#47;R group&#46; The efficacy of intraperitoneal administration of Sodium nitroprusside in both Sodium nitroprusside alone and Sodium nitroprusside&#43;L-NAME groups was found statistically significant for the reducing of injury scores &#40;p&#60;0&#46;05&#41;&#46; The difference between the Ischemia&#47;reperfusion and Sodium nitroprusside groups was found statistically significant as in the Ischemia&#47;reperfusion and Sodium nitroprusside&#43;L-NAME groups due to the tissue Malonyldialdehyde levels &#40;p&#60;0&#46;05&#41;&#46; There was no statistical difference between Ischemia&#47;reperfusion and L-NAME groups&#46;</p></span> <span id="ceabs40" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="cestitle40">CONCLUSION</span><p id="spara110" class="elsevierStyleSimplePara elsevierViewall">Ischemia&#47;reperfusion induced injury might be reduced by the intraperitoneal administration of Sodium nitroprusside&#44; even in the presence of L-NAME&#44; in the rat intestinal model&#46;</p></span>"
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            "titulo" => "CONCLUSION"
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          "en" => "<p id="spara10" class="elsevierStyleSimplePara elsevierViewall">Histological appearance of the control group &#40;H&#38;E x 40&#41;&#46;</p>"
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          "en" => "<p id="spara20" class="elsevierStyleSimplePara elsevierViewall">Histological appearance of the I&#47;R group&#46; Villous epithelial separation&#44; luminal epithelial seeding and naked subepithelial areas &#40;H&#38;E x100&#41;&#46;</p>"
        ]
      ]
      2 => array:7 [
        "identificador" => "fig3"
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          "en" => "<p id="spara30" class="elsevierStyleSimplePara elsevierViewall">Histological appearance of the SNP group&#46; A contact epithelial lining except for some subepithelial spacings &#40;H&#38;E x 40&#41;&#46;</p>"
        ]
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        "identificador" => "fig4"
        "etiqueta" => "Figure 4"
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          "en" => "<p id="spara40" class="elsevierStyleSimplePara elsevierViewall">Histological appearance of the L-NAME group&#46; Epithelial separations and luminal epithelial seeding is obvious &#40;H&#38;E x 40&#41;&#46;</p>"
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          "en" => "<p id="spara50" class="elsevierStyleSimplePara elsevierViewall">Histological appearance of the SNP&#43;L-NAME group&#46; An increase in the amount of subepithelial spaces and epithelial separations &#40;H&#38;E x100&#41;&#46;</p>"
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                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n
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                  \t\t\t\t  " align="" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="center" valign="\n
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                  \t\t\t\t" scope="col">Control group&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="center" valign="\n
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                  \t\t\t\t">5&#46;Rat&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">6&#46;Rat&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&#46;Rat&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">4&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Total Score&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">23&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">10&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">23&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">14&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">Mean &#177; SD&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">0&#177;0&#46;0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">3&#46;28&#177;0&#46;48&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">1&#46;42&#177;0&#46;53&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">3&#46;28&#177;0&#46;95&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" style="border-bottom: 2px solid black">2&#46;0&#177;0&#46;81&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
            ]
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spara60" class="elsevierStyleSimplePara elsevierViewall">The histological injury scores according to the criteria of Park and Chiu&#46;</p>"
        ]
      ]
      6 => array:7 [
        "identificador" => "tbl2"
        "etiqueta" => "Table 2"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
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        "tabla" => array:1 [
          "tablatextoimagen" => array:1 [
            0 => array:1 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="\n
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                  \t\t\t\t  " align="" valign="\n
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                  \t\t\t\t" scope="col">&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t" scope="col">n&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col">Mean&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col">SD&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col">Minimum&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th><th class="td" title="\n
                  \t\t\t\t\ttable-head\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t" scope="col">Maximum&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
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                  \t\t\t\t\ttop\n
                  \t\t\t\t">Control group&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&#46;71&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&#46;38&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">I&#47;R group&#42;&#42;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">14&#46;42&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">2&#46;50&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">11&#46;00&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">18&#46;00&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">SNP group&#42;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8&#46;85&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&#46;06&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&#46;00&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">10&#46;00&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">L-NAME group&#42;&#42;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">12&#46;85&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">3&#46;53&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">8&#46;00&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">17&#46;00&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">SNP&#43;L-NAME group&#42;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">9&#46;42&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">1&#46;27&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">7&#46;00&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="center" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">11&#46;00&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
            ]
          ]
        ]
        "descripcion" => array:1 [
          "en" => "<p id="spara70" class="elsevierStyleSimplePara elsevierViewall">Tissue Malonyl dialdehyde levels of the groups &#40;nmol&#47;gr tissue&#41;&#46;</p>"
        ]
      ]
      7 => array:5 [
        "identificador" => "tbl1a"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => false
        "mostrarDisplay" => true
        "tabla" => array:1 [
          "tablatextoimagen" => array:1 [
            0 => array:1 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><tbody title="tbody"><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Group 1 &#40;Control&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Laparatomy&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " colspan="2" align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t"></td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Group 2 &#40;I&#47;R&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Ischemia40 min&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Saline&#40;4 ml&#47;kg i&#46;p&#46;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Reperfusion30 min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Group 3 &#40;SNP&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Ischemia40 min&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">SNP&#40;5 mg&#47;kg i&#46;p&#46;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Reperfusion30 min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Group 4 &#40;L-NAME&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Ischemia40 min&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">L-NAME&#40;10 mg&#47;kg i&#46;p&#46;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Reperfusion30 min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Group 5 &#40;SNP &#43; L-NAME&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Ischemia40 min&#46;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">SNP&#40;5 mg&#47;kg i&#46;p&#46;&#41;&#43;L-NAME&#40;10 mg&#47;kg i&#46;p&#46;&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="\n
                  \t\t\t\t\ttable-entry\n
                  \t\t\t\t  " align="left" valign="\n
                  \t\t\t\t\ttop\n
                  \t\t\t\t">Reperfusion30 min&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr></tbody></table>
                  """
              ]
            ]
          ]
        ]
      ]
    ]
    "bibliografia" => array:2 [
      "titulo" => "REFERENCES"
      "seccion" => array:1 [
        0 => array:2 [
          "identificador" => "cebibsec10"
          "bibliografiaReferencia" => array:24 [
            0 => array:3 [
              "identificador" => "bib1"
              "etiqueta" => "1"
              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Schemes against ischemia&#59; solutions for reperfusion &#40;injury&#41;&#63;"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:1 [
                            0 => """
                              PS Barie \n
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                              """
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                  "host" => array:1 [
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                      "doi" => "10.1097/00003246-199904000-00009"
                      "Revista" => array:6 [
                        "tituloSerie" => "Crit Care Med"
                        "fecha" => "1999"
                        "volumen" => "27"
                        "paginaInicial" => "684"
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                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/10321649"
                            "web" => "Medline"
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            1 => array:3 [
              "identificador" => "bib2"
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              "referencia" => array:1 [
                0 => array:2 [
                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Oxygen radicals&#44; lipid peroxidation&#44; and permeability changes after intestinal ischemia and reperfusion"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => false
                          "autores" => array:2 [
                            0 => """
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                            1 => """
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                      "Revista" => array:6 [
                        "tituloSerie" => "J Appl Physiol"
                        "fecha" => "1993"
                        "volumen" => "74"
                        "paginaInicial" => "1515"
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                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/8514664"
                            "web" => "Medline"
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            2 => array:3 [
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                      "autores" => array:1 [
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                          "etal" => false
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                  "host" => array:1 [
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                      "doi" => "10.1097/00003246-199309000-00023"
                      "Revista" => array:6 [
                        "tituloSerie" => "Crit Care Med"
                        "fecha" => "1993"
                        "volumen" => "21"
                        "paginaInicial" => "1376"
                        "paginaFinal" => "1386"
                        "link" => array:1 [
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                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/8370303"
                            "web" => "Medline"
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              "etiqueta" => "4"
              "referencia" => array:1 [
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                      "titulo" => "Role of endogenous endothelin peptides in intestinal ischemia-reperfusion injury in rats"
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                        "fecha" => "1998"
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                      "autores" => array:1 [
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                            "web" => "Medline"
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                      "Revista" => array:6 [
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                            "web" => "Medline"
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                      "autores" => array:1 [
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                  "contribucion" => array:1 [
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
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                            0 => """
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                      "autores" => array:1 [
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                          "etal" => false
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                      "Revista" => array:6 [
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Article information

ISSN: 18075932
Original language: English

DOI:10.1590/S1807-59322008000100016

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Year/Month	Html	Pdf	Total

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2024 July	26	16	42
2024 June	18	13	31
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2024 April	15	8	23
2024 March	29	13	42
2024 February	35	8	43
2024 January	26	11	37
2023 December	24	14	38
2023 November	26	19	45
2023 October	18	20	38
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2023 August	12	6	18
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2023 June	7	1	8
2023 May	5	2	7
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