Journal of gastroenterology and hepatology · 2016
Effect of exogenous hydrogen sulfide on gastric acid secretion.
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Sun Hongzhao, Zhang Jing, Shi Yuan, Gao Yan, Shi Guiyan, Wang Xin, Guo Peng, Huang Yu, Ren Yuning, Zheng Shan
Аннотация
BACKGROUND AND AIM: H2 S is an important gasotransmitter in the gastrointestinal tract. The aim of the present study was to investigate the effect of exogenous H2 S on gastric acid secretion.
METHODS: Male Wistar rats were randomly divided into physiological saline (PS) group, sodium hydrosulfide (NaHS; 50, 100, and 150 µmol/kg body weight) group, glibenclamide + NaHS group, and SQ22536 + NaHS group. PH of gastric juice before injection and after injection were determined by a PH meter.
RESULTS: The results showed that NaHS, an exogenous H2 S donor, injected into the enterocoelia significantly reduced the PH of gastric juice, the same volume of PS administered similarly did not change PH of gastric juice, the promotional effect of NaHS on gastric acid secretion could be abolished by glibenclamide, an ATP-sensitive potassium channel K(ATP) blocker SQ22536, an inhibitor of adenyl cyclase.
CONCLUSIONS: The data from these experiments suggest that exogenous H2 S promoted gastric acid secretion, which may occur via K(ATP) channels and activate AC-cAMP pathway.
METHODS: Male Wistar rats were randomly divided into physiological saline (PS) group, sodium hydrosulfide (NaHS; 50, 100, and 150 µmol/kg body weight) group, glibenclamide + NaHS group, and SQ22536 + NaHS group. PH of gastric juice before injection and after injection were determined by a PH meter.
RESULTS: The results showed that NaHS, an exogenous H2 S donor, injected into the enterocoelia significantly reduced the PH of gastric juice, the same volume of PS administered similarly did not change PH of gastric juice, the promotional effect of NaHS on gastric acid secretion could be abolished by glibenclamide, an ATP-sensitive potassium channel K(ATP) blocker SQ22536, an inhibitor of adenyl cyclase.
CONCLUSIONS: The data from these experiments suggest that exogenous H2 S promoted gastric acid secretion, which may occur via K(ATP) channels and activate AC-cAMP pathway.