Peripheral glucose metabolism and insulin sensitivity in Alzheimer's disease

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Abstract
Twenty-four patients with Alzheimer's disease and matched controls were examined with reference to metabolic parameters such as peripheral insulin and glucose metabolism, serum lipid concentrations and blood pressure levels. Blood glucose levels and insulin response were measured during an intravenous glucose tolerance test and peripheral insulin sensitivity was estimated with the hyperinsulinemic euglycemic clamp technique. There were no differences recorded between the two groups in glucose metabolism, triglyceride, cholesterol or HDL-cholesterol levels. The patients with Alzheimer's disease had significantly lower blood pressure levels, which partly could be explained by ongoing treatment with neuroleptics and antidepressives. Previous findings of higher insulin levels in Alzheimer's disease could not be verified.