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  • Title: Basal and stimulated hyperinsulinemia in obesity: relationship to adipose-cell size.
    Author: Julius U, Leonhardt W, Schneider H, Schollberg K, Hanefeld M, Schulze J, Haller H.
    Journal: Endokrinologie; 1979 Apr; 73(2):214-20. PubMed ID: 467375.
    Abstract:
    In 17 non-selected, non-hyperlipoproteinemic subjects without overt diabetes both adipose tissue biopsy and an oral glucose tolerance test (50 g) were performed. All persons were weight-stable at the time of investigation. A significant correlation between fasting insulin concentration and mean adipocyte volume was observed, whereas no correlation existed between ideal body weight index and fasting insulin level. Persons with larger adipocytes had elevated basal insulin levels as well as higher and longer lasting increments following the glucose challenge. They also exhibited significantly higher mean glucose levels during the OGTT. When these patients were matched for glucose tolerance with the subgroup having smaller mean adipocyte volumes, the difference in insulin levels was still demonstrable. This study underlines the importance of adipose-cell enlargement regulating basal and stimulated insulin output.
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