ArticleWorld journal of gastrointestinal pharmacology and therapeutics2011
Capsaicin-sensitive afferentation represents an indifferent defensive pathway from eradication in patients with H. pylori gastritis.
Article in World journal of gastrointestinal pharmacology and therapeutics, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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- Daily dietary patterns associated withFrontiers in nutrition · 2026Article
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10 authors at 1 institution in 1 country.
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Abstract
aimTo study the role of capsaicin-sensitive afferent nerves in Helicobacter pylori (H. pylori) positive chronic gastritis before and after eradication.
methodsGastric biopsy samples were obtained from corpus and antrum mucosa of 20 healthy human subjects and 18 patients with H. pylori positive chronic gastritis (n = 18) before and after eradication. Traditional gastric mucosal histology (and Warthin-Starry silver impregnation) and special histochemical examinations were carried out. Immunohistochemistry for capsaicin receptor (TRVP1), calcitonin gene-related peptide (CGRP) and substance P (SP) were carried out by the labeled polymer immunohistological method (Lab Vision Co., USA) using polyclonal rabbit and rat monoclonal antibodies (Abcam Ltd., UK).
resultsEradication treatment was successful in 16 patients (89%). Seven patients (7/18, 39%) remained with moderate complaints, meanwhile 11 patients (11/28, 61%) had no complaints. At histological evaluation, normal gastric mucosa was detected in 4 patients after eradication treatment (4/18, 22%), and moderate chronic gastritis could be seen in 14 (14/18, 78%) patients. Positive immuno-staining for capsaicin receptor was seen in 35% (7/20) of controls, 89% (16/18, P < 0.001) in patients before and 72% (13/18, P < 0.03) after eradication. CGRP was positive in 40% (8/20) of controls, and in 100% (18/18, P < 0.001) of patients before and in 100% (18/18, P < 0.001) after eradication. The immune-staining of gastric mucosa for substance-P was positive in 25% (5/20) of healthy controls, and in 5.5% (3/18, P > 0.05) of patients before and in 0% of patients (0/18, P > 0.05) after H. pylori eradication.
conclusionDistibution of TRVP1 and CGRP is altered during the development of H. pylori positive chronic gastritis. The immune-staining for TRVP1, CGRP and SP rwemained unchanged before and after H. pylori eradication treatment. The capsaicin-sensitive afferentation is an independent from the eradication treatment. The 6 wk time period might not be enough time for the restituion of chronic H. pylori positive chronic gastritis. The H. pylori infection might not represent the main pathological factor in the development of chronic gastritis.
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