Results: 38

La alta prevalencia de lesiones premalignas gástricas y el bajo rendimiento diagnóstico de la visión endoscópica son argumentos a favor de la toma sistemática de biopsias gástricas por Protocolo Sydney

Gastroenterol. latinoam; 29 (1), 2018
Background: Atrophic gastritis (AG) and intestinal metaplasia (IM) are stages that appear in the process of gastric carcinogenesis. Their presence requires programmed endoscopic vigilance. Objectives: To determine the frequency of AG and IM in gastric biopsies (GB) taken according to Sydney Protocol and ...

Caracterização dos fenótipos de mucina podem prever a recorrência do câncer gástrico precoce após a mucosectomia endoscópica

Arq. gastroenterol; 54 (4), 2017
ABSTRACT BACKGROUND: Endoscopic mucosal resection is still considered an accepted treatment for early gastric cancer for selected cases. Histopathologic criteria for curative endoscopic resection are intramucosal well-differentiated adenocarcinoma, lateral and deep margins free of tumor, no histological...

Helicobacter pylori with East Asian-type cagPAI genes is more virulent than strains with Western-type in some cagPAI genes

Braz. j. microbiol; 48 (2), 2017
Abstract The severity of Helicobacter pylori-related disease is correlated with the presence and integrity of a cag pathogenicity island (cagPAI). cagPAI genotype may have a modifying effect on the pathogenic potential of the infecting strain. After analyzing the sequences of cagPAI genes, some strains w...

Endoscopic prediction of tumor invasion depth in early gastric neoplasia: a prospective study in Peru

Introduction: Endoscopic resection is the first option treatment of early gastric cancer with invasion to mucosa or superficial submucosa, because the risk of nodal metastasis is negligible. Then the prediction of tumor invasion is cardinal. Objectives: Determine the accuracy of endoscopic prediction for...

[Retracted Article] Gastric and jejunal histopathological changes in patients undergoing bariatric surgery

Arq. gastroenterol; 54 (1), 2017
ABSTRACT BACKGROUND Morbid obesity is a multifactorial disease that is increasingly treated by surgery. OBJECTIVE To evaluate gastric histopathological changes in obese, and to compare with patients who underwent gastrojejunal bypass and the jejunal mucosa after the surgery. METHODS This is an observa...

Severe hypoproteinemia as a harbinger of Ménétrier's disease in autoimmune pancreatitis

Summary Ménétrier's disease is an extremely rare disease of unknown etiology causing gastric mucosal hypertrophy and protein-losing gastropathy. Rare cases of this condition have been reported in patients with autoimmune diseases. However, to the best of our knowledge, Ménétrier's disease associated ...

Comparação entre teste da urease e histopatologia na identificação do Helicobacter pylori

Introdução: o Helicobacter pylori (H. pylori) é uma bactéria gram-negativa capaz de colonizar a mucosa gástrica e predispor a diversas patologias. Para identificação do H. pylori, os testes invasivos ainda são os mais realizados, sendo que não há um teste padrão ouro aceito universalmente. A a...

Validación del test rápido de la ureasa para la detección del Helicobacter pylori en el Hospital Nacional Cayetano Heredia, Lima, Perú

Objetivos: Validar un test rápido de la ureasa (TRU) en el Hospital Cayetano Heredia (HCH) de Lima, Perú Materiales y métodos: Estudio observacional prospectivo. Se incluyó 181 pacientes mayores de 18 años de edad con síntomas dispépticos, que fueron sometidos a endoscopía digestiva alta en el Se...

Ghrelin plasma levels, gastric ghrelin cell density and bone mineral density in women with rheumatoid arthritis

Braz. j. med. biol. res; 50 (6), 2017
Generalized bone loss can be considered an extra-articular manifestation of rheumatoid arthritis (RA) that may lead to the occurrence of fractures, resulting in decreased quality of life and increased healthcare costs. The peptide ghrelin has demonstrated to positively affect osteoblasts in vitro and has...