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Lipoprotein Lipase

Meaning

Lipoprotein Lipase (LPL) is a crucial enzyme that hydrolyzes triglycerides carried in circulating lipoproteins, such as chylomicrons and very-low-density lipoproteins (VLDLs), releasing free fatty acids and glycerol for energy storage or immediate use by peripheral tissues. This enzyme is strategically anchored to the endothelial surface of capillaries in tissues like muscle and adipose tissue, serving as the gateway for fat delivery from the bloodstream into cells. LPL activity is profoundly regulated by various hormones, including insulin and thyroid hormones, making it a key intersection point between endocrine signaling and lipid metabolism. Dysfunction of LPL is central to hypertriglyceridemia and various forms of dyslipidemia.