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Insulin Research Paper

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Insulin also stimulates glucose transport and the synthesis of triglycerides. Insulin helps prevent lipolysis which is the catabolic breakdown of triglycerides. Insulin also increases the uptake of fatty acids coming from circulating lipoproteins by stimulating lipoprotein lipase activity in fat tissue. Insulin resistance in obesity is shown by decreased insulin-stimulated glucose transport and metabolism in adipocytes by impaired suppression of hepatic glucose output. (Kahn, B., 2000) These defects may result from decreased insulin signaling and downregulation of GLUT4 which is the major glucose transporter that responds to insulin. In obesity, there is increased expression of several protein tyrosine phosphatases (PTPs), that dephosphorylate

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