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  • Title: Effects of propranolol and hemodialysis on the response of glucose, insulin, C-peptide and cyclic AMP to glucagon challenge.
    Author: Pun KK, Yeung CK, Ho PW, Lin HJ, Chan MK, Yeung RT.
    Journal: Clin Nephrol; 1984 Apr; 21(4):235-40. PubMed ID: 6329569.
    Abstract:
    Hypoglycemia is frequently reported in hemodialysis patients on propranolol. We studied the influence of propranolol on carbohydrate metabolism in sixteen hemodialysis patients (eight on propranolol and eight not) with pre-dialysis oral glucose tolerance tests (OGTT) and pre- and post-dialysis glucagon tests. Propranolol was shown to have significant suppressive effect on the insulin response during OGTT. With glucagon challenge pre- and post-dialysis, despite a similar cAMP response, patients on propranolol had significantly lower glucose response than those not receiving propranolol and it is postulated that this is due to post-receptor post-cAMP inhibition of hepatic glycogenolysis. Moreover, while the glucose response in patients not on propranolol significantly increased after dialysis, no significant change was found in patients on propranolol. The significantly higher C-peptide, insulin and cAMP responses to glucagon challenge in the hemodialysis patients as compared to normal controls may be due to delayed clearance of glucagon, and the further increased responses after dialysis may be due to the removal of a dialyzable factor suppressing these responses.
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