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  • Title: Neural activation of alpha-adrenoreceptors in glucose mobilization from liver.
    Author: Lautt WW.
    Journal: Can J Physiol Pharmacol; 1979 Sep; 57(9):1037-9. PubMed ID: 229949.
    Abstract:
    Using a newly described method for obtaining pure, mixed hepatic venous blood samples, it was demonstrated that glucose mobilization from the liver of the anesthetized cat in response to hepatic nerve stimulation is via alpha-adrenergic receptors. Neither the elevation of portal pressure nor the amount of glucose generated by the liver was affected by intraportal administration of 1 mg propranolol/kg (beta blockade). In the presence of alpha-receptor blockade (3 mg phentolamine/kg) the portal venous pressure change was minor and the glucose output actually decreased slightly upon nerve stimulation, a response consistent with our previously demonstrated reduction of glucose output by parasympathetic nerve stimulation. The present responses to nerve stimulation were not due to activation of pancreatic nerves since these nerves were routinely ligated.
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