Yang GT, Zhao HY, Kong Y, Sun NN, Dong AQ. Study of the effects of nesfatin-1 on gastric function in obese rats. World J Gastroenterol 2017; 23(16): 2940-2947 [PMID: 28522911 DOI: 10.3748/wjg.v23.i16.2940]
Corresponding Author of This Article
Dr. Guo-Tao Yang, Department of Third Neurology, Cangzhou Central Hospital, Cangzhou Clinical Medical School of Hebei Medical University, Cangzhou 061001, Hebei Province, China. yangguotaotao@yeah.net
Research Domain of This Article
Gastroenterology & Hepatology
Article-Type of This Article
Basic Study
Open-Access Policy of This Article
This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Guo-Tao Yang, Ai-Qin Dong, Department of Third Neurology, Cangzhou Central Hospital, Cangzhou Clinical Medical School of Hebei Medical University, Cangzhou 061001, Hebei Province, China
Hong-Ying Zhao, Department of Elderly Internal Medicine, Cangzhou Central Hospital, Cangzhou Clinical Medical School of Hebei Medical University, Cangzhou 061001, Hebei Province, China
Yu Kong, Department of Second Digestion, Cangzhou Central Hospital, Cangzhou Clinical Medical School of Hebei Medical University, Cangzhou 061001, Hebei Province, China
Ning-Ning Sun, Department of First Digestion, Cangzhou Central Hospital, Cangzhou Clinical Medical School of Hebei Medical University, Cangzhou 061001, Hebei Province, China
Supported byCangzhou City Science and Technology Plan Projects, No. 151302138.
Institutional review board statement: This study was reviewed and approved by the Cangzhou Clinical Medical School of Hebei Medical University’s institutional review board statement.
Conflict-of-interest statement: No potential conflicts of interest relevant to this article were reported.
Data sharing statement: No additional data are available.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Dr. Guo-Tao Yang, Department of Third Neurology, Cangzhou Central Hospital, Cangzhou Clinical Medical School of Hebei Medical University, Cangzhou 061001, Hebei Province, China. yangguotaotao@yeah.net
Telephone: +86-317-2179510 Fax: +86-317-2179510
Received: December 1, 2016 Peer-review started: December 2, 2016 First decision: December 28, 2016 Revised: February 15, 2017 Accepted: March 2, 2017 Article in press: March 2, 2017 Published online: April 28, 2017
Abstract
AIM
To investigate the effects of nesfatin-1 on gastric function in obese rats.
METHODS
The obese rat model was induced by a high-fat diet. The gastric emptying rate and gastric acid secretory capacity of the rats were determined after treatment with different drug concentrations of nesfatin-1 and administration routes. Based on this, the expression of H+/K+-ATPase was measured using RT-PCR and western blot to preliminarily explore the mechanism of gastric acid secretion changes.
RESULTS
Body weight, body length, and Lee’s index of the rats significantly increased in the high-fat diet-induced obese rat model. Two hours after lateral intracerebroventricular injection of nesfatin-1, the gastric emptying rate and gastric acid secretory capacity of rats decreased. Four hours after injection, both were restored to normal levels. In addition, the expression of H+/K+-ATPase decreased and moved in line with changes in gastric acid secretory capacity. This in vivo experiment revealed that intracerebroventricular injection of nesfatin-1, rather than intravenous injection, could suppress gastric function in obese rats. Moreover, its effect on the gastric emptying and gastric acid secretory capacity of rats is dose-dependent within a certain period of time.
CONCLUSION
Through this research, we provide a theoretical basis for further studies on nesfatin-1, a potential anti-obesity drug.
Core tip: The high-fat diet-induced obese rat model was used to study the effects of nesfatin-1 on gastric function. We found that intracerebroventricular injection of nesfatin-1, rather than intravenous injection, could suppress gastric function in a dose-dependent manner within a certain period of time. In addition, the expression of H+/K+ ATPase was down-regulated, which may explain the mechanisms of gastric acid secretion changes.
