DYNAMICS OF INSULIN RELEASE BY PERFUSED HAMSTER ( MESOCRICETUS AURATUS ) PANCREASES: EFFECTS OF HYPOPHYSECTOMY, BOVINE AND HUMAN GROWTH HORMONE, AND PROLACTIN
DONALD L. CURRYt, Leslie L. Bennett, Choh Hao Li
Abstract
DONALD L. CURRYt, Leslie L. Bennett, Choh Hao Li
Abstract
The hamster exhibits a biphasic pattern of insulin secretion; however, the dynamic response differs qualitatively from that of the rat in that there is a steady-state second release phase. A marked attenuation of insulin secretion as a result of hypophysectomy was observed after 3 weeks, but not after 2 weeks. This depression of insulin secretion was restored to near or above normal levels by bovine growth hormone, human growth hormone, and prolactin.
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The hamster exhibits a biphasic pattern of insulin secretion; however, the dynamic response differs qualitatively from that of the rat in that there is a steady-state second release phase. A marked attenuation of insulin secretion as a result of hypophysectomy was observed after 3 weeks, but not after 2 weeks. This depression of insulin secretion was restored to near or above normal levels by bovine growth hormone, human growth hormone, and prolactin.
Key concepts: Endocrinology, Internal medicine, Hypophysectomy, Prolactin, Hamster, Insulin, Mesocricetus, Hormone