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Pronunciation: in'su-lin

Definition: A polypeptide hormone, secreted by ß cells in the islets of Langerhans, which promotes glucose use, protein synthesis, and the formation and storage of neutral lipids; available in various preparations including genetically engineered human insulin, which is currently favored. Insulin is used parenterally in the treatment of diabetes mellitus.

[L. insula, island, + -in]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.