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Journal of Undergraduate Research

Keywords

monitor peptide, anorexia, endogenous cholecystokinin, CCK, ingestion

College

Family, Home, and Social Sciences

Department

Psychology

Abstract

Cholecystokinin (CCK) is a gut hormone released following the ingestion of a meal. It was first shown in 1973 by Gibbs et al. that administration of exogenous CCK-8 (CCK-8 is the smallest part of the CCK molecule that possesses its biological activity) before a meal leads to a decrease in food intake and the onset of satiety-like behaviors in rats.1 Extensive evidence now exists demonstrating that exogenous CCK-8 can produce a selective decrease in food intakes in humans, as well. By using CCK receptor antagonists to block endogenous CCK or trypsin inhibitors to elevate released endogenous CCK, some evidence is consistent with the possibility that endogenous CCK induces satiety and reduces food intake both in experimental animals and in humans.2,3

Included in

Psychology Commons

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