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Isoproterenol-induced Mg2+ uptake in liver
T Günther1, J Vormann, V Höllriegl
1Institute of Molecular Biology and Biochemistry, Free University of Berlin, Germany.
FEBS Letters
|August 3, 1992
Abstract:
Isoproterenol increased the Mg2+ content of hepatocytes after injection into rats or after addition to collagenase-dispersed hepatocytes. cAMP also the increased cellular Mg2+ content of isolated hepatocytes. This effect was prevented by staurosporine. Phorbol ester had no effect on the Mg2+ content of isolated hepatocytes, and after injection of isoproterenol into rats, protein kinase C of liver was not affected. It was concluded that isoproterenol induced long-term Mg2+ influx via the activation of protein kinase A which can be inhibited by staurosporine.