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- W2045315087 abstract "Previous studies showed a rapid decrease of somatostatin concentration in the gut and an increase in serum gastrin levels after a single dose of the duodenal ulcerogen cysteamine. An attempt was made to identify morphologic changes that would correlate with these functional changes. Rats were killed 1, 4, 8 or 24 hr after a single dose of cysteamine and sections of gastric mucosa and pancreas were processed for electron and light microscopy. Subtle ultrastructural alterations were seen in D cells of the stomach (e.g., dilation of mitochondrial cristae and endoplasmic reticulum, and apparent increase in electron density of secretory granules) after cysteamine administration. The number of somatostatin-positive cells visualized by the immunoperoxidase technique using light microscopy was decreased in 1–4 hr but returned to normal by 24 hr. The alterations observed in the G cells after cysteamine administration are consistent with release of gastrin from mature granules and increased synthesis of the hormone. The lack of major morphologic changes in the D cells suggests that cysteamine affects somatostatin without causing cell necrosis or alteration in lysosome formation. The effect of the drug may thus be mediated at the biochemical level without marked morphologic alterations." @default.
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- W2045315087 date "1983-10-01" @default.
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- W2045315087 title "The effect of the duodenal ulcerogen cysteamine on somatostatin and gastrin cells in the rat" @default.
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- W2045315087 doi "https://doi.org/10.1016/0014-4800(83)90052-7" @default.
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