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11/22/09

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Merriam-Webster's Medical Dictionary

Main Entry: in·su·lin
Pronunciation: 'in(t)-s(&-)l&n
Function: noun
: a protein hormone that is synthesized in the pancreas from proinsulin and secreted by the beta cells of the islets of Langerhans, that is essential for the metabolism of carbohydrates, lipids, and proteins, that regulates blood sugar levels by facilitating the uptake of glucose into tissues, by promoting its conversion into glycogen, fatty acids, and triglycerides, and by reducing the release of glucose from the liver, and that when produced in insufficient quantities results in diabetes mellitus -- see ILETIN

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