12.07.2015 Views

Diabetes and Exercise: Why Exercise Works When Insulin Does Not

Diabetes and Exercise: Why Exercise Works When Insulin Does Not

Diabetes and Exercise: Why Exercise Works When Insulin Does Not

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SummaryStudies in Human Subjects <strong>Exercise</strong> <strong>and</strong> insulin increase GLUT4 translocation in human skeletal muscle. <strong>Insulin</strong> signaling <strong>and</strong> GLUT4 translocation are impairedin patients with type 2 diabetes. <strong>Exercise</strong>-stimulated AMPK activation <strong>and</strong> GLUT4 translocation are normal in patients with type 2 diabetes. Activation of AMPK can increase glucose transport in skeletal muscle, making AMPK a drug target for treatmentof type 2 diabetes. Metformin, the most widely used diabetes drug, works through stimulation of AMPK.

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