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  • Title: The role of catecholamines and glucagon on serum and liver metallothionein response to restraint stress.
    Author: Hidalgo J, Garvey JS, Armario A.
    Journal: Rev Esp Fisiol; 1987 Dec; 43(4):433-7. PubMed ID: 3448709.
    Abstract:
    The role of glucagon and catecholamines on serum and liver metallothionein (MT) concentrations in basal and stress conditions has been studied. Glucagon showed no effect on serum MT either in basal (unstressed) or stress (20 hours of restraint) conditions. In contrast, glucagon administration increased both unstressed and stressed levels of liver MT. No effect of the alpha + beta-catecholamine blocker labetalol on serum MT levels was observed in unstressed rats. However, the administration of labetalol abolished the increase in serum MT levels caused by stress. These data suggest that catecholamines might be involved in serum MT regulation during stress, while they might not be important in the maintenance of basal serum MT levels. Finally, no significant effect of adrenergic blockade was found on basal and stress levels MT, in agreement with previous data from this laboratory.
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