In a group of 348 overweight and obese patients with type 2 diabetes (DM2) the influence of body weight and duration of disease on basal and postprandial insulin secretion and clearance was analysed. For comparison two matched groups of 323 obese and 50 normal weight patients were available. Concentrations of insulin, C-peptide and glucose were determined. DM2 patients showed higher basal insulin levels than obese subjects. The weight-dependent increase in DM2 patients was mainly due to a reduced clearance. Postprandially there was neither a weight-dependent increase in insulin concentration nor a reduction of clearance. The late postprandial period of newly-diagnosed DM2 patients was characterized by an increased insulin concentration and secretion, while patients with a long duration of disease showed comparable insulin concentrations in spite of a three times higher insulin secretion. This was due to a highly increased clearance rate.
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In a group of 348 overweight and obese patients with type 2 diabetes (DM2) the influence of body weight and duration of disease on basal and postprandial insulin secretion and clearance was analysed. For comparison two matched groups of 323 obese and 50 normal weight patients were available. Concentrations of insulin, C-peptide and glucose were determined. DM2 patients showed higher basal insulin levels than obese subjects. The weight-dependent increase in DM2 patients was mainly due to a reduce...
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