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Over-expression of cyclooxygenase-2 in endoscopic biopsies of ectopic gastric mucosa BJMBR
Martins,F.P.; Artigiani Neto,R.; Oshima,C.T.; Costa,P.P. da; Forones,N.M.; Ferrari,A.P..
Ectopic gastric mucosa (EGM) is considered to be a congenital condition. Rare cases of adenocarcinoma have been described. There are no data justifying regular biopsies or follow-up. Cyclooxygenase-2 (COX-2) is a protein involved in gastrointestinal tumor development by inhibiting apoptosis and regulating angiogenesis. The aim of this prospective study was to evaluate COX-2 expression in EGM and compare it with normal tissue and Barrett's esophagus. We evaluated 1327 patients. Biopsies were taken from the inlet patch for histological evaluation and from the gastric antrum to assess Helicobacter pylori infection. Biopsies taken from normal esophageal, gastric antrum and body mucosa and Barrett's esophagus were retrieved from a tissue bank. EGM biopsies were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Endoscopy; Ectopic gastric mucosa; Cyclooxygenase-2; Barrett's esophagus; Gastric biopsies.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007001100005
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