|
|
||||||||
AJP - Heart and Circulatory Physiology, Vol 260, Issue 3 953-H956, Copyright © 1991 by American Physiological Society
ARTICLES |
U. Ikeda, Y. Tsuruya and T. Yaginuma
Department of Cardiology, Jichi Medical School, Tochigi, Japan.
We have investigated whether alpha 1-adrenergic stimulation is coupled to myocardial hypertrophy in adult rat ventricular cells (ARVC) in culture. Exposure of ARVC to norepinephrine (NE) caused a significant increase in [3H]-leucine incorporation and total protein content in ARVC. Prazosin totally inhibited the NE-stimulated leucine uptake by ARVC. Inhibition of spontaneous contraction of ARVC with KCl or verapamil did not prevent the stimulation of hypertrophy by NE. Protooncogene c-myc expression in ARVC was induced at 1 h after exposure to NE. Above results support the premise that activation of the alpha 1-adrenergic receptors by NE induces hypertrophy of ARVC, independent of changes in contractile activity.
This article has been cited by other articles:
![]() |
C. McWhinney, D. Wenham, S. Kanwal, V. Kalman, C. Hansen, and J. D. Robishaw Constitutively Active Mutants of the alpha 1a- and the alpha 1b-Adrenergic Receptor Subtypes Reveal Coupling to Different Signaling Pathways and Physiological Responses in Rat Cardiac Myocytes J. Biol. Chem., January 21, 2000; 275(3): 2087 - 2097. [Abstract] [Full Text] [PDF] |
||||
![]() |
O.-E. Brodde and M. C. Michel Adrenergic and Muscarinic Receptors in the Human Heart Pharmacol. Rev., December 1, 1999; 51(4): 651 - 690. [Abstract] [Full Text] [PDF] |
||||
![]() |
K.-D. SCHLUTER and H. M. PIPER Regulation of growth in the adult cardiomyocytes FASEB J, May 1, 1999; 13(9001): 17 - 22. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| Visit Other APS Journals Online |