Early warning of liver disease in diabetics
Juan Pablo Arab, Carolina Ramírez, Marco Arrese
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Departamento de Gastroenterología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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"documento" => "article" "crossmark" => 0 "licencia" => "http://creativecommons.org/licenses/by-nc-nd/4.0/" "subdocumento" => "cor" "cita" => "Ann Hepatol. 2010;9:306" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:2 [ "total" => 310 "formatos" => array:3 [ "EPUB" => 12 "HTML" => 255 "PDF" => 43 ] ] "en" => array:8 [ "idiomaDefecto" => true "titulo" => "Cefuroxime axetil-induced liver failure" "tienePdf" => "en" "tieneTextoCompleto" => "en" "paginas" => array:1 [ 0 => array:1 [ "paginaInicial" => "306" ] ] "contieneTextoCompleto" => array:1 [ "en" => true ] "contienePdf" => array:1 [ "en" => true ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "Fuat Ekiz, O¿uz Üsküdar, Zahide Şimşek, Ilhami Yüksel, Ömer Başar, Akif Altinbaş, Osman Yüksel" "autores" => array:7 [ 0 => array:2 [ "nombre" => "Fuat" "apellidos" => "Ekiz" ] 1 => array:2 [ "nombre" => "O¿uz" "apellidos" => "Üsküdar" ] 2 => array:2 [ "nombre" => "Zahide" "apellidos" => "Şimşek" ] 3 => array:2 [ "nombre" => "Ilhami" "apellidos" => "Yüksel" ] 4 => array:2 [ "nombre" => "Ömer" "apellidos" => "Başar" ] 5 => array:2 [ "nombre" => "Akif" "apellidos" => "Altinbaş" ] 6 => array:2 [ "nombre" => "Osman" "apellidos" => "Yüksel" ] ] ] ] ] "idiomaDefecto" => "en" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S166526811931645X?idApp=UINPBA00004N" "url" => "/16652681/0000000900000003/v1_201906230902/S166526811931645X/v1_201906230902/en/main.assets" ] "en" => array:15 [ "idiomaDefecto" => true "titulo" => "Early warning of liver disease in diabetics" "tieneTextoCompleto" => true "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "307" "paginaFinal" => "309" ] ] "autores" => array:1 [ 0 => array:4 [ "autoresLista" => "Juan Pablo Arab, Carolina Ramírez, Marco Arrese" "autores" => array:3 [ 0 => array:2 [ "nombre" => "Juan" "apellidos" => "Pablo Arab" ] 1 => array:2 [ "nombre" => "Carolina" "apellidos" => "Ramírez" ] 2 => array:4 [ "nombre" => "Marco" "apellidos" => "Arrese" "email" => array:1 [ 0 => "marrese@med.puc.cl" ] "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">*</span>" "identificador" => "cor1" ] ] ] ] "afiliaciones" => array:1 [ 0 => array:2 [ "entidad" => "Departamento de Gastroenterología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile" "identificador" => "aff1" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor1" "etiqueta" => "*" "correspondencia" => "Correspondence and reprint request:" ] ] ] ] "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Comment</span><p id="p0005" class="elsevierStylePara elsevierViewall">The coexistence of diabetes mellitus (DM) and chronic liver disease (CLD) is commonly seen in daily clinical practice and indeed these two conditions are associated with each other more frequently than expected by chance.<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> The intricacies of this association are multiple and their relationship is of bidirectional nature. Thus, while cirrhosis itself and some etiologic agents of cirrhosis, such as the hepatitis C virus, can contribute to development of DM through a myriad of mechanisms,<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> DM may also be considered a metabolic pathway leading to CLD via the development of non-alcoholic fatty liver disease [NAFLD].<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a></p><p id="p0010" class="elsevierStylePara elsevierViewall">Non-alcoholic fatty liver disease (NAFLD) is a cli-nico-pathological entity defined by the presence of hepatic histological changes that are similar to those observed in heavy-drinkers but detected in patients that deny significant alcohol consumption and do not have other known causes of chronic liver disease, such as viral hepatitis or drugs.<a class="elsevierStyleCrossRef" href="#bib0020"><span class="elsevierStyleSup">4</span></a><span class="elsevierStyleSup">,</span><a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">5</span></a> The histo-logical hallmark of NAFLD is the accumulation of fat in the liver (conventionally set as more than 5% by weight) which may or may not be accompanied by the presence of necro-inflammatory changes and/ or hepatic fibrosis.<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">6</span></a> When the latter features are present the term non-alcoholic steatohepatitis [NASH] is used. The subgroup of patients with NASH are deemed to have a more aggressive form of the disease that poses the risk of developing cirrhosis and hepatocellular carcinoma [HCC].<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">7</span></a></p><p id="p0015" class="elsevierStylePara elsevierViewall">NAFLD is now recognized as one the most common liver diseases worldwide and is emerging as a relevant cause of liver-related mortality. Epidemiolo-gical studies have shown that NAFLD affects a substantial proportion of the general population of several countries.<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">8</span></a><span class="elsevierStyleSup">,</span><a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a> Current estimates from different sources indicate that up to 30% of the general population is affected by NAFLD.<a class="elsevierStyleCrossRefs" href="#bib0040"><span class="elsevierStyleSup">8</span></a><span class="elsevierStyleSup">,</span><a class="elsevierStyleCrossRef" href="#bib0055"><span class="elsevierStyleSup">11</span></a> This high fre-quency is mainly due to the close relationship between this type of fatty liver and obesity, a condition that have now reached epidemic proportions in the world.<a class="elsevierStyleCrossRef" href="#bib0060"><span class="elsevierStyleSup">12</span></a> In fact, the prevalence of NAFLD in morbidly obese population can reach up to 75%.<a class="elsevierStyleCrossRefs" href="#bib0055"><span class="elsevierStyleSup">11</span></a><span class="elsevierStyleSup">,</span><a class="elsevierStyleCrossRef" href="#bib0065"><span class="elsevierStyleSup">13</span></a> Another group with high prevalence of NAFLD is that of patients with type 2 DM. In fact, NAFLD prevalence among these patients ranges from 49% to 62%. Moreover, patients with type 2 DM are more likely to have the histologically more aggressive form of NAFLD (i.e. NASH), with a prevalence of 12.2% among those with diabetes compared to 4.7% among non-diabetics.<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">14</span></a></p><p id="p0020" class="elsevierStylePara elsevierViewall">From the above-mentioned figures one can conclude that NAFLD is a very common disorder in type 2 DM and that those patients with DM are indeed at risk of developing CLD. However, in spite of this data and in contrast with the known risk of re-tinopathy, chronic kidney disease and atherosclerosis, clinicians are frequently unaware that patients with DM are uniquely prone to develop NAFLD and particularly its more aggressive form NASH.<a class="elsevierStyleCrossRef" href="#bib0015"><span class="elsevierStyleSup">3</span></a> An example of this lack of awareness is the fact that potential risk of CLD is not mentioned in the currently used guidelines for DM management.<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a> Obviously, data is needed to precisely define at which extent liver cirrhosis may be an under-recognized complication in patients with DM. The recent paper by<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">16</span></a><span class="elsevierStyleItalic">et al.</span> makes a significant contribution in this regard. In their study, the authors used administrative health databases for the province of Ontario from 1994 to 2006 to identify 438,069 adults with newly diagnosed diabetes and matched them in a 5:1 ratio by birth year, sex, and local health region with a group of 2,059,708 individuals without known diabetes. The main study endpoint was incident serious liver disease, defined as cirrhosis, liver failure and its complications, or receipt of a liver transplant, over a median of 6.4 years of follow-up. Results showed that adults with newly diagnosed diabetes had a significantly greater risk of liver disease (unadjusted hazard ratio was 1.92 (95% confidence interval [CI] 1.83-2.01) compared with controls. The association remained significant (hazard ratio was 1.77 (95% CI 1.68-1.86) after adjustment) after adjusting for other demographical variables that may influence the risk for liver disease such as age, gender, urban versus rural residence, and income level. Moreover, diabetes, with or without pre-existing hypertension, dyslipidemia or obesity, conferred a higher risk of serious liver disease than any of the three other conditions in isolation.<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">16</span></a></p><p id="p0025" class="elsevierStylePara elsevierViewall">The study by Porepa et al. has some important limitations that the authors delineate in their re-port.<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">16</span></a> Among them, misclassification of persons with diabetes, inability to distinguish between newly diagnosed type 1 and type 2 DM and lack of ethnicity data deserve to be mentioned. However, the most important point is that causality cannot be demonstrated in an association study. The possibility exists that some patients with DM already had subclinical cirrhosis at the moment of study entry and that DM may be a consequence of CLD rather than its cau-se.<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> This however, is unlikely for most of patients since hepatogenous diabetes is often seen in advanced (and clinically apparent) cirrhosis. Although definitive proof is lacking, currently available basic and clinical data<a class="elsevierStyleCrossRefs" href="#bib0035"><span class="elsevierStyleSup">7</span></a><span class="elsevierStyleSup">,</span><a class="elsevierStyleCrossRef" href="#bib0085"><span class="elsevierStyleSup">17</span></a> on NAFLD and its risk of progression to CLD is highly suggestive of a causal relationship of NAFLD and the risk of serious liver disease in DM.</p><p id="p0030" class="elsevierStylePara elsevierViewall">The fact that diagnosis of DM is a risk factor for serious liver disease, likely via NAFLD, has important clinical implications. The silent nature of the NAFLD and NASH poses a diagnostic problem. Although detection of steatosis is relatively simple through the use of simple techniques such as abdominal ultrasound (with 93% sensitivity and 89% specificity), discrimination of patients with NASH or advanced fibrosis is difficult.<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a> Of note, declining mortality rates in people with DM make plausible that an unknown proportion of older diabetics may already have unrecognized cirrhosis being at risk of cirrhotic complications and HCC. To rely on normal levels of aminotransferases to exclude liver disease in patients with DM may not be an adequate strategy since severe fibrosis may be presence in this set-ting.<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a> To date liver biopsy is considered the gold standard for the definitive diagnosis of NAFLD<a class="elsevierStyleCrossRef" href="#bib0100"><span class="elsevierStyleSup">20</span></a> but this procedure, in virtue of its invasive nature, is not easily accepted by patients and doctors. In light of lack of guidelines, the pros and cons of liver biopsy in the individual patients should be adequately balanced ideally with the involvement of a hepato-logist. Non invasive strategies for assessment of ongoing liver injury or hepatic fibrogenesis in NA-FLD are being developed and assessed in clinical studies. Among them, plasma biomarkers of apoptosis such as cytokeratin-18 fragments<a class="elsevierStyleCrossRef" href="#bib0105"><span class="elsevierStyleSup">21</span></a> or new imaging studies such as transient elastography<a class="elsevierStyleCrossRef" href="#bib0110"><span class="elsevierStyleSup">22</span></a> or magnetic resonance elastography<a class="elsevierStyleCrossRef" href="#bib0115"><span class="elsevierStyleSup">23</span></a> hold promise and their entrance to clinical practice is eagerly awaited. In the meantime, the first task is to increase the awareness on the risk or the presence of serious liver disease in patients with DM among physicians caring these patients. The hepatological community should develop active educational strategies in this regard.</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Acknowledgement</span><p id="p0035" class="elsevierStylePara elsevierViewall">This work was partially funded by Grants from the Fondo Nacional De Ciencia y Tecnologia de Chile (Fondecyt # 1080170 to MA).</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:5 [ 0 => array:3 [ "identificador" => "xres1211014" "titulo" => "Article commented" "secciones" => array:2 [ 0 => array:1 [ "identificador" => "abs0005" ] 1 => array:2 [ "identificador" => "abs0010" "titulo" => "Original Abstract" ] ] ] 1 => array:2 [ "identificador" => "xpalclavsec1127298" "titulo" => "Key words" ] 2 => array:2 [ "identificador" => "sec0005" "titulo" => "Comment" ] 3 => array:2 [ "identificador" => "sec0010" "titulo" => "Acknowledgement" ] 4 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2010-06-24" "fechaAceptado" => "2010-07-07" "PalabrasClave" => array:1 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Key words" "identificador" => "xpalclavsec1127298" "palabras" => array:3 [ 0 => "Nonalcoholic liver disease" 1 => "Type 2 diabetes mellitus" 2 => "Hepatic steatosis" ] ] ] ] "tieneResumen" => true "resumen" => array:1 [ "en" => array:3 [ "titulo" => "Article commented" "resumen" => "<span id="abs0005" class="elsevierStyleSection elsevierViewall"><p id="sp0005" class="elsevierStyleSimplePara elsevierViewall">Porepa L, Ray JG, Sanchez-Romeu MP, Booth GL. Newly diagnosed diabetes mellitus as a risk factor for serious liver disease. <span class="elsevierStyleItalic">CMAJ</span> 2010; DOI:10.1503/cmaj.092144.</p></span> <span id="abs0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Original Abstract</span><p id="sp0010" class="elsevierStyleSimplePara elsevierViewall"><span class="elsevierStyleBold">Background.</span> The negative impact of diabetes mellitus is well recognized, yet little is known about the effect of this disease on the liver, an organ susceptible to nonalcoholic fatty liver disease related to insulin resistance. We evaluated whether adults with newly diagnosed diabetes were at increased risk of serious liver disease.</p><p id="sp2010" class="elsevierStyleSimplePara elsevierViewall"><span class="elsevierStyleBold">Methods.</span> We used administrative health databases for the province of Ontario (1994-2006) to perform a population based matched retrospective cohort study. The exposed group comprised 438 069 adults with newly diagnosed diabetes. The unexposed comparison group-those without known diabetes-consisted of 2 059 708 individuals, matched 5:1 to exposed persons, by birth year, sex and local health region. We excluded individuals with preexisting liver or alcohol-related disease. The primary study outcome was the subsequent development of serious liver disease, namely, liver cirrhosis, liver failure and its sequelae, or receipt of a liver transplant.</p><p id="sp3010" class="elsevierStyleSimplePara elsevierViewall"><span class="elsevierStyleBold">Results.</span> The incidence rate of serious liver disease was 8.19 per 10 000 person-years among those with newly diagnosed diabetes and 4.17 per 10 000 person-years among those without diabetes. The unadjusted hazard ratio was 1.92 (95% confidence interval [CI] 1.83-2.01). After adjustment for age, income, urban residence, health care utilization and pre-existing hypertension, dysli-pidemia, obesity and cardiovascular disease, the hazard ratio was 1.77 (95% CI 1.68-1.86).</p><p id="sp6010" class="elsevierStyleSimplePara elsevierViewall"><span class="elsevierStyleBold">Interpretation.</span>Adults with newly diagnosed diabetes appeared to be at higher risk of advanced liver disease, also known as diabetic hepatopathy. Whether this reflects nonalcoholic fatty liver disease or direct glycemic injury of the liver remains to be de-termined.</p></span>" "secciones" => array:1 [ 0 => array:2 [ "identificador" => "abs0010" "titulo" => "Original Abstract" ] ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bs0005" "bibliografiaReferencia" => array:23 [ 0 => array:3 [ "identificador" => "bib0005" "etiqueta" => "1." 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| Year/Month | Html | Total | |
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| 2024 November | 4 | 0 | 4 |
| 2024 October | 24 | 4 | 28 |
| 2024 September | 13 | 3 | 16 |
| 2024 August | 22 | 1 | 23 |
| 2024 July | 32 | 5 | 37 |
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| 2024 May | 22 | 8 | 30 |
| 2024 April | 46 | 1 | 47 |
| 2024 March | 18 | 5 | 23 |
| 2024 February | 8 | 0 | 8 |
| 2024 January | 8 | 2 | 10 |
| 2023 December | 10 | 6 | 16 |
| 2023 November | 3 | 2 | 5 |
| 2023 October | 10 | 5 | 15 |
| 2023 September | 6 | 0 | 6 |
| 2023 August | 7 | 1 | 8 |
| 2023 July | 5 | 3 | 8 |
| 2023 June | 14 | 1 | 15 |
| 2023 May | 43 | 2 | 45 |
| 2023 April | 28 | 3 | 31 |
| 2023 March | 28 | 3 | 31 |
| 2023 February | 7 | 1 | 8 |
| 2023 January | 2 | 13 | 15 |
| 2022 December | 4 | 5 | 9 |
| 2022 November | 10 | 10 | 20 |
| 2022 October | 8 | 8 | 16 |
| 2022 September | 5 | 5 | 10 |
| 2022 August | 6 | 5 | 11 |
| 2022 July | 9 | 5 | 14 |
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| 2022 May | 17 | 10 | 27 |
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| 2022 February | 24 | 5 | 29 |
| 2022 January | 28 | 10 | 38 |
| 2021 December | 11 | 15 | 26 |
| 2021 November | 14 | 5 | 19 |
| 2021 October | 23 | 6 | 29 |
| 2021 September | 21 | 6 | 27 |
| 2021 August | 9 | 5 | 14 |
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| 2021 April | 15 | 12 | 27 |
| 2021 March | 6 | 8 | 14 |
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| 2021 January | 7 | 8 | 15 |
| 2020 December | 5 | 10 | 15 |
| 2020 November | 3 | 3 | 6 |
| 2020 October | 2 | 4 | 6 |
| 2020 September | 7 | 7 | 14 |
| 2020 August | 5 | 4 | 9 |
| 2020 July | 5 | 2 | 7 |
| 2020 June | 5 | 1 | 6 |
| 2020 May | 2 | 4 | 6 |
| 2020 April | 0 | 2 | 2 |
| 2020 March | 7 | 1 | 8 |
| 2020 February | 3 | 0 | 3 |
| 2020 January | 6 | 5 | 11 |
| 2019 December | 3 | 10 | 13 |
| 2019 November | 5 | 3 | 8 |
| 2019 October | 2 | 2 | 4 |
| 2019 September | 1 | 2 | 3 |
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