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Minerva Gastroenterology 2021 Jul 26

DOI: 10.23736/S2724-5985.21.02964-8

Copyright © 2021 EDIZIONI MINERVA MEDICA

lingua: Inglese

Interplay of potassium channel, gastric parietal cell and proton pump in gastrointestinal physiology, pathology and pharmacology

Suchandra GOSWAMI

Smt. Vidyawati College of Pharmacy, Gora Machhiya, Jhansi, Uttar Pradesh, India


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Gastric acid secretion plays a pivotal role in the physiology of gastrointestinal tract. The functioning of the system encompasses a P2 ATPase pump (which shuttles electroneutral function at low pH) along with different voltage sensitive/neutral ion channels, cytosolic proteins, acid sensor receptors as well hormonal regulators. The increased acid secretion is a pathological marker of several diseases like peptic ulcer, gastroesophageal reflux disease (GERD), chronic gastritis, and the bug Helicobacter pylori (H. pylori) has also a critical role, which altogether affects the patient's quality of life. This review comprehensively describes about the nature of potassium ion channel and its mediators, the different clinical strategy to control acid rebound, and some basic experimental observations performed to study the interplay of ion channels, pumps, as well as mediators during acid secretion. Different aspects of regulation of gastric acid secretion have been focused either in terms of physiology of secretion or molecular interactions. The importance of H pylori infection and its treatment have also been discussed. Furthermore, the relevance of calcium signaling during acid secretion has been reviewed. The entire theme will make anyone to understand in details about the gastric secretion machinery in general.


KEY WORDS: Potassium; Gastric acid secretion; Rabbit gastric parietal cell; Proteomics; Gastric H+;K+-ATPase

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