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  • Title: Low number of insulin receptors but high receptor protein content in adipose tissue of rats with monosodium glutamate-induced obesity.
    Author: Zorad S, Jezova D, Szabova L, Macho L, Tybitanclova K.
    Journal: Gen Physiol Biophys; 2003 Dec; 22(4):557-60. PubMed ID: 15113127.
    Abstract:
    In order to better understand the mechanisms leading to insulin resistance, the number of fat tissue insulin receptors, their affinity and insulin receptor protein in rats with monosodium glutamate-induced obesity were studied. Obese rats displayed significantly lower number of insulin receptors with high affinity. Surprisingly, the amount of insulin receptor protein was significantly elevated in these animals. The same relations have been already reported for angiotensin II binding and AT1 receptor protein in the same model of obesity. Therefore we suggest an existence of general defect of adipocyte cell membrane in monosodium glutamate-induced obesity characterized by the presence of high quantity of impaired receptor protein.
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