Sensitivity to enkephalin as a cause of non-insulin dependent diabetes.
Non-insulin-dependent diabetes is associated with facial flushing after alcohol in patients on chlorpropamide (chlorpropamide alcohol flushing, C.P.A.F.) especially when there is a family history of diabetes. C.P.A.F. in three subjects (two diabetics, one non-diabetic) was blocked by the specific opiate antagonist naloxone. In nine subjects (six diabetics) C.P.A.F. was reproduced by the enkephalin analogue with opiate-like activity [D-Ala2, MePhe4, Met (O)-ol] enkephalin (DAMME). C.P.A.F. thus may be due to increased sensitivity to endogenous opiates. DAMME and other substances with opiate-like activity, such as morphine and beta-endorphin, affect carbohydrate metabolism and insulin secretion. Increased sensitivity to endogenous opiates such as enkephalin may thus give rise to non-insulin-dependent diabetes associated with C.P.A.F.[1]References
- Sensitivity to enkephalin as a cause of non-insulin dependent diabetes. Leslie, R.D., Pyke, D.A., Stubbs, W.A. Lancet (1979) [Pubmed]
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