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  • Title: Elevated content and secretion of gut GLI in VMH-lesioned rats.
    Author: Naitoh M, Satoh S, Kogawa T, Tanaka K, Inoue S.
    Journal: Brain Res Bull; 1992 Jul; 29(1):45-9. PubMed ID: 1504851.
    Abstract:
    Gut glucagon-like immunoreactivity (GLI), a supposed intestinal growth factor in the plasma and gastrointestinal tract, and weight of the gastrointestinal tract, an intestinal growth indicator, were examined in ventromedial hypothalamic (VMH)-lesioned rats 1 week after VMH lesions. Postprandial plasma gut GLI in VMH-lesioned rats was significantly higher than that in control rats. The content of gut GLI in all gastrointestinal sections except the duodenum in VMH-lesioned rats was significantly greater than that in control rats. Gel chromatography in the lower portion of the small intestine in which GLI content was the highest of all sections revealed the same pattern in both VMH-lesioned and control rats with two peaks of similar molecular size. Weight of all gastrointestinal sections except the cecum in VMH-lesioned rats significantly increased. These results demonstrated that both gut GLI secretion and production were enhanced in VMH-lesioned rats. The elevated gut GLI release may accelerate growth of the gastrointestinal tract in these animals.
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