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  • Title: Insulin receptor changes in type 2 diabetes after short term insulin treatment.
    Author: Rizkalla SW, Weissbrodt P, Tchobroutsky G, Slama G.
    Journal: Horm Metab Res; 1985 Oct; 17(10):512-7. PubMed ID: 3905555.
    Abstract:
    We have studied erythrocyte insulin receptor changes before and after 8 days of continuous subcutaneous insulin infusion by a pump in 11 uncontrolled obese non-insulin-dependent diabetics (type 2), diet and drug resistant for at least three months previously. All the patients were hospitalized. On day 1 of the study, their oral hypoglycemic agents were stopped and hypocaloric diet (1000 Kcal/day) was maintained (strictly reinforced). This period of reinforced treatment was not accompanied by correction of hyperglycemia. On day 9 patients were placed for 12 hours on artificial pancreas in order to bring their fasting blood glucose levels down to normal values. Then they were submitted to a continuous subcutaneous insulin infusion (CSII) for the following 8 days. There was a significant decrease in mean fasting plasma glucose (P less than 0.001) and a rise in insulin (P less than 0.05) levels after insulin treatment. Mean specific insulin binding was also significantly increased (P less than 0.01). The increase in binding (with insulin therapy) correlated with the fall in fasting hyperglycemia (r = 0.786, P less than 0.01). In addition, the increase in binding correlated negatively with changes in fasting plasma insulin levels (r = -0.867, P less than 0.01), under treatment, on one hand and with the dose of exogenous insulin administered (r = -0.681, P less than 0.05) on the other hand. There was no correlation between binding and fasting plasma insulin levels (before and after insulin therapy), or between diabetes duration and any of the previous parameters.(ABSTRACT TRUNCATED AT 250 WORDS)
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