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BMC Gastroenterology
Published in: BMC Gastroenterology 1/2016

Open Access 01-12-2016 | Research article

Changes in plasma ghrelin and leptin levels in patients with peptic ulcer and gastritis following eradication of Helicobacter pylori infection

Authors: Chika Kasai, Kazushi Sugimoto, Isao Moritani, Junichiro Tanaka, Yumi Oya, Hidekazu Inoue, Masahiko Tameda, Katsuya Shiraki, Masaaki Ito, Yoshiyuki Takei, Kojiro Takase

Published in: BMC Gastroenterology | Issue 1/2016

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Abstract

Background

Helicobacter pylori (H. pylori) infection and eradication therapy have been known to influence gastric ghrelin and leptin secretion, which may lead to weight gain. However, the exact relationship between plasma ghrelin/leptin levels and H. pylori infection has remained controversial. The aim of this study was to investigate plasma ghrelin and leptin levels in H. pylori-positive and -negative patients, to compare the two levels of the hormones before and after H. pylori eradication, and to examine the correlation between body mass index (BMI) and active ghrelin or leptin levels, as well as that between atrophic pattern and active ghrelin or leptin levels.

Methods

Seventy-two H. pylori-positive patients who underwent upper gastrointestinal endoscopy, 46 diagnosed as having peptic ulcer and 26 as atrophic gastritis, were enrolled. Control samples were obtained from 15 healthy H. pylori-negative volunteers. The extent of atrophic change of the gastric mucosa was assessed endoscopically. Body weight was measured and blood was collected before and 12 weeks after H. pylori eradication therapy. Blood samples were taken between 8 and 10 AM after an overnight fast.

Results

Plasma ghrelin levels were significantly lower in H. pylori-positive patients than in H. pylori-negative patients. In particular, plasma active ghrelin levels were significantly lower in patients with gastritis compared with patients with peptic ulcer. Plasma ghrelin levels decreased after H. pylori eradication in both peptic ulcer and gastritis patients, while plasma leptin levels increased only in peptic ulcer patients. Plasma leptin levels and BMI were positively correlated, and active ghrelin levels and atrophic pattern were weakly negatively correlated in peptic ulcer patients.

Conclusion

H. pylori infection and eradication therapy may affect circulating ghrelin/leptin levels. This finding suggests a relationship between gastric mucosal injury induced by H. pylori infection and changes in plasma ghrelin and leptin levels.
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Metadata
Title
Changes in plasma ghrelin and leptin levels in patients with peptic ulcer and gastritis following eradication of Helicobacter pylori infection
Authors
Chika Kasai
Kazushi Sugimoto
Isao Moritani
Junichiro Tanaka
Yumi Oya
Hidekazu Inoue
Masahiko Tameda
Katsuya Shiraki
Masaaki Ito
Yoshiyuki Takei
Kojiro Takase
Publication date
01-12-2016
Publisher
BioMed Central
Published in
BMC Gastroenterology / Issue 1/2016
Electronic ISSN: 1471-230X
DOI
https://doi.org/10.1186/s12876-016-0532-2

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