Gastric ghrelin in relation to gender, stomach topography and Helicobacter pylori in dyspeptic patients.

Abstract:

AIM:To investigate the level of gastric ghrelin in stomach mucosa of dyspeptic patients in relation to Helicobacter pylori (H pylori) infection, bacterial cytotoxicity, topography and gender. METHODS:The study comprised 40 premenopausal women (19 H pylori positive) and 48 men (17 H pylori positive) with functional dyspepsia. All gastric biopsy specimens revealed normal mucosa or non-atrophic gastritis. Gastric ghrelin concentration was determined by Enzyme linked immunosorbent assay. The cagA and vacA strains of bacterial DNA were identified by multiplex polymerase chain reaction. RESULTS:In general, infection with H pylori caused an increase in gastric ghrelin level regardless of gender and stomach topography. Significantly more hormone was present in both, non-infected and H pylori positive female samples, as compared to males. The distribution of bacterial strains showed cagA(+) vacA s1m1 and cagA(-) vacA s2m2 genotypes as the most common infections in the studied population. A tendency to higher ghrelin levels was observed in less cytotoxic (cagA negative) strain-containing specimens from the antrum and corpus of both gender groups (without statistical significance). CONCLUSION:An increase in gastric ghrelin levels at the stage of non-atrophic gastritis in H pylori positive patients, especially in those infected with cagA(-) strains, can exert a gastroprotective effect.

journal_name

World J Gastroenterol

authors

Stec-Michalska K,Malicki S,Michalski B,Peczek L,Wisniewska-Jarosinska M,Nawrot B

doi

10.3748/wjg.15.5409

subject

Has Abstract

pub_date

2009-11-21 00:00:00

pages

5409-17

issue

43

eissn

1007-9327

issn

2219-2840

journal_volume

15

pub_type

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