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Gastric secretion.

Mitchell L Schubert1

  • 1Department of Medicine, Division of Gastroenterology, Virginia Commonwealth University's Medical College of Virginia and McGuire VAMC, Richmond, Virginia, USA. Mitchell.Schubert@med.va.gov

Current Opinion in Gastroenterology
|February 11, 2005
PubMed
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This review details the precise regulation of gastric acid secretion by central and peripheral pathways. Understanding these mechanisms is key to developing new treatments for acid-peptic disorders.

Area of Science:

  • Gastroenterology
  • Physiology
  • Endocrinology

Background:

  • Gastric acid secretion is vital for digestion but must be tightly regulated to prevent mucosal injury.
  • Complex central and peripheral pathways control gastric acid release.

Purpose of the Study:

  • To review recent literature on the regulation of gastric exocrine and endocrine secretion.
  • To provide perspective on the physiological mechanisms governing gastric acid production.

Main Methods:

  • Literature review of studies published within the past year.
  • Analysis of research utilizing genetically engineered mouse models.
  • Examination of neural, hormonal, and paracrine regulatory pathways.

Main Results:

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  • Gastric acid secretion is regulated by numerous central (neuropeptide Y, corticotropin-releasing factor, neuromedin U) and peripheral (gastrin, histamine, acetylcholine, somatostatin, cholecystokinin, calcitonin gene-related peptide, leptin) pathways.
  • These pathways modulate the activity of parietal cells directly or indirectly via histamine, gastrin, and somatostatin.
  • Recent studies have employed genetically engineered mouse models to refine understanding of these regulatory pathways.

Conclusions:

  • Enhanced understanding of gastric acid secretion mechanisms can inform novel therapeutic strategies.
  • New treatments may target acid-peptic disorders and mitigate adverse effects of current medications, such as proton pump inhibitor-induced acid rebound.