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1.
Cent Eur J Immunol ; 46(2): 225-230, 2021.
Article in English | MEDLINE | ID: mdl-34764791

ABSTRACT

INTRODUCTION: Celiac disease (CD) is an autoimmune enteropathy triggered by gluten ingestion in genetically susceptible individuals. In CD, activation of the immune response causes damage of the intestinal mucosa, and a gluten-free diet (GFD) is the only available therapy. Intestinal damage can lead to an increase in the circulation of components of bacteria from the intestinal lumen, such as lipopolysaccharide (LPS). Soluble CD14 (sCD14) and lipopolysaccharide-binding protein (LBP) participate in the recognition of LPS, and their levels are altered in different pathologies. In the present study, the circulating levels of sCD14 and LBP from untreated CD patients were evaluated and compared to CD patients on a GFD and controls. MATERIAL AND METHODS: In total seventy-two adult patients with CD, twenty-three untreated CD patients and forty-nine on a GFD were included. In addition, fifty-five healthy individuals were included as controls. Additionally, the effect of LPS on sCD14 production by both normal and inflamed intestinal tissue culture was explored. RESULTS: Serum levels of sCD14 were found to be significantly increased in untreated CD patients compared to patients on a GFD and controls. In addition, we found that LPS induced the production of sCD14 by biopsies of intestinal tissue from untreated CD patients. CONCLUSIONS: The data from this study show that circulating levels of sCD14 are increased in the untreated CD patients compared to patients on a GFD. Our data show that LPS induces the production of sCD14 by the intestinal tissue from untreated CD patients.

2.
Asunción; EFACIM-EDUNA; oct. 1997. 21-37 p.
Monography in Spanish | LILACS, BDNPAR | ID: lil-219995

ABSTRACT

Para determinar la asociación entre la infección por Helicobacter Pylori y las lesiones histológicas en la mucosa gástrica, se analizó el material biópsico de antro y cuerpo gástrico de 195 jovenes y adultos paraguayos, de nivel socioeconómico bajo, con diagnóstico endoscópico y patológico de gastritis crónica, excluyéndose los casos de gastritis linfocítica, gastritis por reflujo, gastritis autoinmune y el cáncer gástrico. La identificación del H. Pylori se realizó con técnicas de tinción con Giemsa, violeta de cresilo y por la prueba de la ureasa, analizando las variables histológicas establecidas en el Sistema de Sidney. La frecuencia de infección del H. Pylori fué de 78 por ciento en antro gástrico y de 60 por ciento en cuerpo medio. Las variables inflamación, actividad, atrofia y metaplasia intestinal fueron más acentuadas en antro, siendo de 100 por ciento, 71 por ciento, 67 por ciento y 14 por ciento respectivamente. Se ha observado una asociación significativa entre grado de actividad de gastritis y grado de infección por H. Pylori (p<0.001), no así con la atrofia y la metaplasia intestinal (p<0.5). La alta prevalencia de la infección por H. Pylori en las gastritis crónicas y su asociación significativa con el grado de actividad, indica que este bacilo es uno de los factores importantes en la producción de lesiones de la mucosa gástrica


Subject(s)
Helicobacter pylori , Gastritis/diagnosis , Gastritis/nursing , Gastritis/pathology
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