insulin defined in 1951 yearinsulin - insulin;
insulin - Hormone of vertebrates, affecting the amount of glucose in the blood; secreted by islets of Langerhans in pancreas. A protein. Secretion is stimulated by high glucose concentration in blood, which insulin decreases by suppressing breakdown of liver glycogen to glucose, and encouraging building up of glycogen from glucose in liver and muscle, and building up of fat from glucose in fat cells. It also stimulates protein synthesis. Antagonized by adrenaline, adrenal glucocorticoids, and glucagon. See also: Blood-sugar.
near insulin in Knolik
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