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  • Title: Plasma insulin and glucagon responses to isoglycemic stimulation in normal pregnancy and post partum.
    Author: Hornnes PJ, Kuhl C.
    Journal: Obstet Gynecol; 1980 Apr; 55(4):425-7. PubMed ID: 6988747.
    Abstract:
    In order to investigate the responses of insulin and glucagon to the same glycemic stimulus in late normal pregnancy and post partum, appropriate quantities of glucose were infused intravenously in 7 normal women at both stages. In this manner similar glucose curves were obtained in the 2 conditions. The insulin response to glucose infusion was increased 3.8 times in late pregnancy, whereas the suppression of glucagon was similar in late pregnancy and post partum. The results confirm that the beta-cell sensitivity to a glycemic stimulus is substantially increased in normal late pregnancy, but the alpha-cell sensitivity to a glycemic stimulus is unaffected by pregnancy.
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