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World J Gastroenterol. May 28, 2026; 32(20): 117044
Published online May 28, 2026. doi: 10.3748/wjg.v32.i20.117044
Figure 2
Figure 2 Illustration of the coordinated control of parietal cell acid secretion by gastrin, somatostatin, and histamine. Gastrin stimulates enterochromaffin-like cells via CCK-2 receptors to release histamine, which activates parietal cells through H2 receptors. Somatostatin from delta cells exerts inhibitory effects through SSTR2 on gastrin cells, ECL cells, and parietal cells, maintaining feedback regulation of gastric acid output.


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