Insulin decreases skeletal muscle cAMP-dependent protein kinase (PKA) activity in normal monkeys and increases PKA activity in insulin-resistant rhesus monkeys.

  • H. K. Ortmeyer
  • Published 1997 in
    Journal of basic and clinical physiology and…


Insulin activation of skeletal muscle glycogen synthase and glucose disposal is defective in both prediabetic and diabetic primates. Reduction in the activation of glycogen synthase by insulin could be the cause of lower glucose disposal rates, and could be the result, at least in part, of the failure of insulin to inhibit cAMP-dependent protein kinase… (More)


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