Incretins are a group of gastrointestinal hormones that stimulate a decrease in blood glucose levels. Incretins do so by causing an increase in the amount of insulin released from the beta cells of the islets of Langerhans after eating, before blood glucose levels become elevated. They also slow the rate of absorption of nutrients into the blood s...
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Type: Term Pronunciation: in-krē′tin Definitions: 1. Generic term for all insulinotropic substances originating in the gastrointestinal tract that are released into the circulation by meals containing glucose. One is glucose-dependent insulinotropic polypeptide, which is released into the circulation from crypt cells in the proximal duod...
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incretin Any of various gastrointestinal hormones and factors that act as potent stimulators of insulin secretion; such as, gastric inhibitory polypeptide.
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