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  • Title: Neither adrenergic nor cholinergic antagonists in the central nervous system affect 2-deoxy-D-glucose(2-DG)-induced hyperglycemia.
    Author: Iguchi A, Gotoh M, Matsunaga H, Yatomi A, Uemura K, Miura H, Kunoh Y, Tamagawa T, Sakamoto N.
    Journal: Brain Res; 1990 Mar 05; 510(2):321-5. PubMed ID: 1970507.
    Abstract:
    To investigate whether the brain adrenergic and cholinergic neurotransmitter systems are involved in the regulation of 2-deoxy-D-glucose (2-DG)-induced hyperglycemia, we studied the effects of adrenergic and cholinergic antagonists on 2-DG-induced secretion of epinephrine and glucagon, and hyperglycemia, in anesthetized fed rats. When 2-DG (10 mg/10 microliters) was injected into the third cerebral ventricle, hepatic venous plasma glucose, glucagon, and epinephrine concentrations were significantly increased. Co-administration of phentolamine, propranolol, atropine and hexamethonium (1 X 10(-7) mol) with 2-DG did not modify the hyperglycemia and hormonal responses normally observed after the administration of 2-DG alone. From this evidence we concluded that neither brain adrenoceptive nor cholinoceptive neurons are involved in the regulation of 2-DG-induced hyperglycemia.
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