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array:20 [ "pii" => "13072915" "issn" => "03010546" "doi" => "10.1157/13072915" "estado" => "S300" "fechaPublicacion" => "2005-03-01" "documento" => "article" "crossmark" => 0 "subdocumento" => "fla" "cita" => "Allergol Immunopathol (Madr). 2005;33:65-8" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:2 [ "total" => 2604 "formatos" => array:3 [ "EPUB" => 20 "HTML" => 2105 "PDF" => 479 ] ] "itemSiguiente" => array:16 [ "pii" => "13072916" "issn" => "03010546" "doi" => "10.1157/13072916" "estado" => "S300" "fechaPublicacion" => "2005-03-01" "documento" => "article" "crossmark" => 0 "subdocumento" => "fla" "cita" => "Allergol Immunopathol (Madr). 2005;33:69-73" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:2 [ "total" => 10939 "formatos" => array:3 [ "EPUB" => 16 "HTML" => 8657 "PDF" => 2266 ] ] "es" => array:11 [ "idiomaDefecto" => true "titulo" => "Enfermedad 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"Fernández-Cruz" ] 5 => array:2 [ "Iniciales" => "J" "apellidos" => "Carbone" ] ] ] ] ] "idiomaDefecto" => "es" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/13072916?idApp=UINPBA00004N" "url" => "/03010546/0000003300000002/v0_201402051251/13072916/v0_201402051251/es/main.assets" ] "itemAnterior" => array:16 [ "pii" => "13072914" "issn" => "03010546" "doi" => "10.1157/13072914" "estado" => "S300" "fechaPublicacion" => "2005-03-01" "documento" => "article" "crossmark" => 0 "subdocumento" => "fla" "cita" => "Allergol Immunopathol (Madr). 2005;33:62-4" "abierto" => array:3 [ "ES" => false "ES2" => false "LATM" => false ] "gratuito" => false "lecturas" => array:2 [ "total" => 1939 "formatos" => array:3 [ "EPUB" => 5 "HTML" => 1581 "PDF" => 353 ] ] "es" => array:9 [ "idiomaDefecto" => true "titulo" => "Función pulmonar en preescolares" "tienePdf" => "es" "tieneTextoCompleto" => "es" "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "62" "paginaFinal" => "64" ] ] "titulosAlternativos" => array:1 [ "es" => array:1 [ "titulo" => "Lung function in preschool children" ] ] "contieneTextoCompleto" => array:1 [ "es" => true ] "contienePdf" => array:1 [ "es" => true ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "F Muñoz-López" "autores" => array:1 [ 0 => array:2 [ "Iniciales" => "F" "apellidos" => "Muñoz-López" ] ] ] ] ] "idiomaDefecto" => "es" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/13072914?idApp=UINPBA00004N" "url" => "/03010546/0000003300000002/v0_201402051251/13072914/v0_201402051251/es/main.assets" ] "en" => array:14 [ "idiomaDefecto" => true "titulo" => "Salivary lysozyme levels in patients with primary immunodeficiencies" "tieneTextoCompleto" => true "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "65" "paginaFinal" => "68" ] ] "autores" => array:1 [ 0 => array:3 [ "autoresLista" => "MA Kmiliauskis, P Palmeira, C Arslanian, GN Pontes, BT Costa-Carvalho, CM Jacob, MMS Carneiro-Sampaio" "autores" => array:7 [ 0 => array:3 [ "Iniciales" => "MA" "apellidos" => "Kmiliauskis" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "affa" ] ] ] 1 => array:3 [ "Iniciales" => "P" "apellidos" => "Palmeira" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "affa" ] ] ] 2 => array:3 [ "Iniciales" => "C" "apellidos" => "Arslanian" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "affa" ] ] ] 3 => array:3 [ "Iniciales" => "GN" "apellidos" => "Pontes" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "affa" ] ] ] 4 => array:3 [ "Iniciales" => "BT" "apellidos" => "Costa-Carvalho" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "affb" ] ] ] 5 => array:3 [ "Iniciales" => "CM" "apellidos" => "Jacob" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">c</span>" "identificador" => "affc" ] ] ] 6 => array:3 [ "nombre" => "MMS" "apellidos" => "Carneiro-Sampaio" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "affa" ] ] ] ] "afiliaciones" => array:3 [ 0 => array:3 [ "entidad" => "Department of Immunology, Instituto de Ciências Biomédicas. Universidade de São Paulo. São Paulo. Brazil." "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "affa" ] 1 => array:3 [ "entidad" => "Department of Pediatrics. Escola Paulista de Medicina. Universidade Federal de São Paulo. São Paulo. Brazil." "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "affb" ] 2 => array:3 [ "entidad" => "Department of Pediatrics. Instituto da Criança. Hospital das Clínicas. São Paulo. Brazil." "etiqueta" => "<span class="elsevierStyleSup">c</span>" "identificador" => "affc" ] ] ] ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:8 [ "identificador" => "fig1" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "copyright" => "Elsevier España" "figura" => array:1 [ 0 => array:4 [ "imagen" => "105v33n02-13072915fig02.jpg" "Alto" => 1473 "Ancho" => 1890 "Tamanyo" => 419984 ] ] "descripcion" => array:1 [ "en" => "--Salivary Iysozyme concentrations in male and female immunodeficient patients and in age-matched male and female healthy controls ­ indicates mean values." ] ] ] "textoCompleto" => "<p class="elsevierStylePara"><span class="elsevierStyleBold"> INTRODUCTION</span></p><p class="elsevierStylePara">Defense against microbes is mediated by the early reactions of innate immunity and the later response of adaptative immunity. Adaptative immunity is stimulated by exposure to infectious agents, which make the body capable of recognizing and reacting to a larger number of microbial and nonmicrobial substances. Innate or natural immunity consists of cellular and biochemical defense mechanisms that are in place even before infection and poised to respond rapidly to infection. These mechanisms react only to microbes and not to noninfectious substances, and they respond in essentially the same way to repeated infections. The principal components of innate immunity are physical and chemical barriers, phagocytic cells and NK cells, blood proteins - including members of the complement system and other mediators of inflammation, like lactoferrin and Iysozyme.</p><p class="elsevierStylePara">Lysozyme is a 1-4-β-N acetylmuramidase, which acts on the peptideoglycan layer of Gram positive bacterial wall, causing cell lysis. It's a soluble endoglycosidase present in blood, in externaI fluids as well in the Iysossomal granules of the phagocytes<span class="elsevierStyleSup">1,2</span>. Lysozyme is also present in human milk throughout lactation in a concentration of 100 μg/ml, and unlike other factors, its concentration increases towards the end of lactation. Lysozyme is produced by monocytes, neutrophils, Paneth cells (in the intestinal tract)<span class="elsevierStyleSup">3</span> and salivary glands<span class="elsevierStyleSup">4</span>. In phylogeny, Iysozyme is highly conserved, being present right through from plants to mammals<span class="elsevierStyleSup">5</span>.</p><p class="elsevierStylePara">Primary immunodeficiency disorders are a diverse group of illnesses that, as a result of abnormalities in the immune system, increases susceptibility to infection<span class="elsevierStyleSup">6</span>. However, little is known about mucosal innate soluble factors that contribut to the host defense of these patients. Synergism between Iysozyme, IgA and the complement system has been reported to occur in microorganism Iysis, but the biological role of Iysozyme is not yet fully known<span class="elsevierStyleSup">7</span>. In the present work, we investigated the Iysozyme concentrations in saliva from patients with primary immunodeficiencies to verify if Iysozyme might act as a compensatory mechanism for the mucosal protection of these patients.</p><p class="elsevierStylePara"><span class="elsevierStyleBold">MATERIAL AND METHODS</span></p><p class="elsevierStylePara">Thirty saliva samples were collected from children and adolescents aged between 3 and 13 years and 4 from adults aged between 20 and 33 years at Instituto da Criança of Hospital das Clínicas and Escola Paulista de Medicina, São Paulo, Brazil.</p><p class="elsevierStylePara">The deficiency diagnosis was: X-linked Agammaglobulinemia (8 cases), Ataxia Telangiectasia Syndrome (5 cases), Common Variable Immunodeficiency (6 cases), Polysaccharide Antibody Deficiency ­which represent normal serum levels of immunoglobulins and IgG subclasses, good antibody response to proteic antigens and severely impaired antibody response to polysaccharide antigens­ (4 cases), Hyper-lgM Syndrome (2 cases), Chronic Granulomatous Disease (2 cases), IgG2 Deficiency and Down Syndrome (1 case), Silver-Russel Syndrome with Common Variable Immunodeficiency (1 case), Chédiak Higashi Syndrome (1 case), Selective IgA Deficiency (1 case), Hyper IgE Syndrome (1 case), and Agammaglobulinemia with partial deletion of chromosome 2 (1 case).</p><p class="elsevierStylePara">Saliva samples were also collected from 49 healthy 3-15 year-old children and adolescents and from 11 of 20-42 year-old adults who were used as controls. The Iysoplate method was utilied to determine the Iysozyme concentrations in saliva samples. This test is based on the agar plate diffusion method first described by Osserman & Lawlor (1966)<span class="elsevierStyleSup">7</span>. To prepare the agar plate, a 10 mg amount of Micrococcus Iysodeikticus (Sigma, M 3770, USA) was suspended in 10 ml of phosphate buffer (PB), and was added to a 10 ml solution of 2 % agarose, also diluted in PB, pH 6.2. Wells were made in the agarose to place the standard curve and saliva samples. For the construction of the standard curve, egg Iysozyme (Sigma, L-6876,USA) was diluted to 1 mg/ml in PB pH 6.2 and the fresh saliva samples were centrifuged at 23.15 x g for 10 min, the pellet was discarded and the supernatant was utilized. To quantify the Iysozyme content of saliva, 5 μg/ml of each saliva sample was transferred to each well. The plates were incubated 18 h at 24 °C and cleared zone ring diameters of Iysis were measured. A standard curve was constructed by relating the egg Iysozyme concentration and the cleared zone ring diameter of Iysis. The values were plotted on the graph to determine the Iysozyme concentration of the saliva samples. Graphpad Prism program was utilized to calculate these results.</p><p class="elsevierStylePara">Statistical analysis was carried out using variance analysis with three factors. It was performed with 95 % confidence limits and a probability value p < 0,05 would be considered as significant.</p><p class="elsevierStylePara"><span class="elsevierStyleBold"> RESULTS</span></p><p class="elsevierStylePara">No difference was found between the Iysozyme levels in saliva of the immunodeficient patients and Iysozyme concentrations in the healthy controls (table I), regardless of age, sex and types of primary immunodeficiency (fig. 1). Variance analysis revealed that comparison among the groups failed to reach significance (age, p = 0.136; sex, p = 0.205; group, p = 0.663; age versus sex, p = 0.508; age versus group, p = 0.941 and sex versus group, p = 0.592).</p><p class="elsevierStylePara"><img src="105v33n02-13072915tab01.gif"></img></p><p class="elsevierStylePara"><img src="105v33n02-13072915fig02.jpg"></img></p><p class="elsevierStylePara">Figure 1.--Salivary Iysozyme concentrations in male and female immunodeficient patients and in age-matched male and female healthy controls ­ indicates mean values.</p><p class="elsevierStylePara"><span class="elsevierStyleBold"> DISCUSSION</span></p><p class="elsevierStylePara">Innate immunity is increasingly recognized as crucial for the resistance to infection. Lysozyme could represent a contributory factor to mucosal immunity and to protection against Gram-positive bacterium in patients with severely impaired immune response<span class="elsevierStyleSup">8</span>.</p><p class="elsevierStylePara">In this paper, it is demonstrated that salivary Iysozyme levels in patients with several primary immunodeficiencies are equivalent to those of healthy age-matched controls, including one patient with Chédiak-Higashi Syndrome, who was previously described as having low activity of this enzyme inside the macrophage<span class="elsevierStyleSup">9</span>. Similar results have been reported by Kirstila et al (1994), who demonstrated that in 15 patients with Common Variable Immunodeficiency (CVI), Iysozyme and other innate immunity substances such as lactoferrin, salivary peroxidase, myeloperoxidase, hypothiocyanite, thiocyanate and agglutinins are equivalent to those found in healthy controls. Those authors suggest that some of these agents do, in fact, seem to be produced in higher amounts to compensate the low antibody titers. It is possible that the unspecific factors form a "backup system" in patients with CVI, in accordance with findings in human infants who are still physiologically immature with respect to immunoglobulins but not as regards to Iysozyme, total peroxidase activity or hypothiocyanite<span class="elsevierStyleSup">10</span>. It was also described that concentration of salivary Iysozyme in HIV patients with oropharyngeal candidiasis was higher than the HIV ones without oropharyngeal candidiasis or the healthy control group<span class="elsevierStyleSup">11</span>.</p><p class="elsevierStylePara">The results of the present work clearly show that salivary Iysozyme levels in primary immunodeficient patients are equivalent to those found in healthy controls, suggesting that this enzyme still represents a remaining (but not compensatory) mechanism, contributing to the protection of these patients against infections.</p><p class="elsevierStylePara"><span class="elsevierStyleBold"> ACKNOWLEDGEMENTS</span></p><p class="elsevierStylePara">The authors are thankful to Dra. Eugenia Grillo Carnide from the Department of Pediatrics, Instituto de Criança. Hospital das Clínicas. São Paulo, Brazil. This work was supported by FAPESP (grants 02/13706-4).</p>" "pdfFichero" => "105v33n02a13072915pdf001.pdf" "tienePdf" => true "PalabrasClave" => array:2 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec291315" "palabras" => array:5 [ 0 => "Primary immunodeficiency" 1 => "Lysozyme" 2 => "Saliva" 3 => "Compensatory mechanism" 4 => "Mucosal immunity" ] ] ] "es" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec291316" "palabras" => array:5 [ 0 => "Inmunodeficiencias primarias" 1 => "Lisozima" 2 => "Saliva" 3 => "Mecanismo compensador" 4 => "Inmunidad de las mucosas" ] ] ] ] "tieneResumen" => true "resumen" => array:2 [ "en" => array:1 [ "resumen" => "Background: Lysozyme is a muramidase that acts on the peptideoglycan wall of Gram positive bacteria, causing cell death. It plays part in innate immunity and is present in blood, external fluid, as well in Iysossomal granules of the phagocytes. Primary Immunodeficiencies are a diverse group of iIInesses that, as a result of abnormalities of the immune system, increase susceptibility to infection. Among the examples of impaired natural immunity are defects in phagocytes and in the complement system. Innate immunity could be important in protecting mucosas against infections in patients with different forms of primary immunodeficiencies. The aim of this study was to investigate Iysozyme concentrations in saliva from patients with primary immunodeficiencies. Methods: Lysozyme levels in saliva samples from 34 patients with primary immunodeficiency (30 children and adolescents between the age of 3-13 years and 4 adults between the age of 20-33) and 60 age-matched healthy controls (49 children and adolescents between the ages of 3-15 and 11 adults between the ages of 22-42) were determined by the Iysoplate method. Results: There was no statistically significant difference between the Iysozyme concentrations in the saliva of the immunodeficient subjects and those of the healthy controls. Conclusion: The results in the present work clearly show that salivary Iysozyme levels in primary immunodeficient patients are equivalent to those found in healthy controls, suggesting that this enzyme still represents a remaining (but not a compensatory mechanism), contributing to the protection of there patients against infections." ] "es" => array:1 [ "resumen" => "Introducción: La lisozima es una muramidasa que actua sobre la pared de peptidoglicano de las bacterias Gram-positivas, provocando la muerte celular. Desempeña un papel en la inmunidad innata y está presente en la sangre, secreciones externas y en los gránulos de los fagocitos. Las inmunodeficiencias primarias constituyen un grupo diverso de enfermedades que, como consecuencia de las anormalidades en el sistema inmune, presentan un aumento de susceptibilidad a las infecciones. Ejemplos de deficiencias de la inmunidad natural son los defectos de los fagocitos y del sistema de complemento. La inmunidad innata puede ser importante para la protección contra las infecciones de las mucosas en los pacientes con diferentes tipos de inmunodeficiencia primaria. El objetivo de este estudio es investigar la concentración de lisozima en la saliva en pacientes con inmunodeficiencia primaria. Métodos: Los niveles de lisozima en las muestras de saliva de 34 pacientes con inmunodeficiencia primaria (30 niños y adolecentes con edad entre 3-13 años y 4 adultos con edad entre 20-33 años) y 60 controles sanos de la misma edad (49 niños y adolescentes con edad entre 3-15 años y 11 adultos con edad entre 22-42 años) fueron determinados por el método Iysoplate. Resultados: No se observó una diferencia estadística significativa entre las concentraciones de lisozima en la saliva de los individuos inmunodeficientes y de los controles sanos. Conclusión: Los resultados del presente trabajo claramente indican que los niveles de lisozima en la saliva de los pacientes con inmunodeficiencias primarias son equivalentes a los de los controles sanos, sugiriendo que este enzima representa un mecanismo remanescente, pero no compensador, que contribuye a la protección contra las infecciones en estos pacientes." ] ] "multimedia" => array:2 [ 0 => array:8 [ "identificador" => "tbl1" "etiqueta" => "Table" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "copyright" => "Elsevier España" "tabla" => array:1 [ "tablatextoimagen" => array:1 [ 0 => array:1 [ "tablaImagen" => array:1 [ 0 => array:4 [ "imagenFichero" => "105v33n02-13072915tab01.gif" "imagenAlto" => 586 "imagenAncho" => 794 "imagenTamanyo" => 27232 ] ] ] ] ] "descripcion" => array:1 [ "en" => "I Salivary lysozyme concentrations (μg/ml) in immunodeficient patient and healthy control groups" ] ] 1 => array:8 [ "identificador" => "fig1" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "copyright" => "Elsevier España" "figura" => array:1 [ 0 => array:4 [ "imagen" => "105v33n02-13072915fig02.jpg" "Alto" => 1473 "Ancho" => 1890 "Tamanyo" => 419984 ] ] "descripcion" => array:1 [ "en" => "--Salivary Iysozyme concentrations in male and female immunodeficient patients and in age-matched male and female healthy controls ­ indicates mean values." ] ] ] "bibliografia" => array:2 [ "titulo" => "Bibliography" "seccion" => array:1 [ 0 => array:1 [ "bibliografiaReferencia" => array:12 [ 0 => array:3 [ "identificador" => "bib1" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "referenciaCompleta" => "Determinação dos níveis de lisozima, IgM total e proteína C-Reativa em líquido cefalorraquidiano como parâmetros auxiliares no diagnóstico diferencial das meningites. 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