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  • Title: Insulin binding and insulin sensitivity in isolated growth hormone deficiency.
    Author: Soman V, Tamborlane W, DeFronzo R, Genel M, Felig P.
    Journal: N Engl J Med; 1978 Nov 09; 299(19):1025-30. PubMed ID: 360062.
    Abstract:
    125I-insulin binding to monocytes was examined in five children and one adult with isolated growth hormone deficiency before and after three to 12 weeks of growth hormone treatment, and in eight controls. Before treatment, mean plasma glucose was 15 mg per deciliter below controls, and plasma insulin was reduced by 40 per cent. Insulin binding to monocytes was 70 per cent greater than controls (P less than 0.005). Insulin-mediated glucose uptake (determined in the adult patient) was 25 per cent greater than mean control levels. After treatment, plasma glucose rose to control levels, plasma insulin increased to 75 per cent above controls (P less than 0.01), and insulin binding fell to 50 per cent below controls (P less than 0.01). Insulin-mediated glucose uptake fell to 30 per cent below the mean control rate. Insulin binding increases in growth hormone deficiency and falls after treatment. These changes may contribute to alterations in insulin sensitivity accompanying altered growth hormone availability.
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