Summary
The mechanism of action of NPY to produce contractions of adult rat ventricular myocytes was investigated. Positive effects were mediated through an L-type Ca2+ channel. Negative effects, linked through an inhibitory G-protein to a transient outward K+ channel, could be antagonised by NPY-(18–36).
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
J. Wharton, and S. Gulbenkian, Peptides in the mammalian cardiovascular system, Peptides 56: 292–316 (1989).
H.M. Piper, B.C. Millar, and B.J. McDermott, The negative inotropic effect of neuropeptide Y on the ventricular cardiomyocyte, Naunyn-Schmiedeberg's Arch. Pharmacol. 340: 333–337 (1989).
B.C. Millar, H.M. Piper, and B.J. McDermott, The anti-adrenergic effect of neuropeptide Y on the ventricular cardiomyocyte, Naunyn-Schmiedeberg’s Arch. Pharmacol. 338: 426–429 (1988).
M.R. Mitchell, T. Powell, D.A. Terrar, and V.W. Twist, Strontium, nifedipine and 4-aminopyridine modify the time course of the action potential in cells from rat ventricular muscle, Br. J. Pharmacol. 81: 551–556 (1984).
A. Balasubramaniam and S. Sheriff, Neuropeptide Y (18–36) is a competitive antagonist of neuropeptide Y in rat cardiac ventricular membranes, J. Biol. Chem. 265: 14724–14727 (1990).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1992 Springer Science+Business Media New York
About this chapter
Cite this chapter
Millar, B.C., McDermott, B.J., Piper, H.M., Balasubramaniam, A., Weis, T. (1992). NPY-(18–36) and Pertussis Toxin Distinguish between the Negative and Positive Contractile Effects of Neuropeptide Y (NPY) in Ventricular Cardiomyocytes. In: Frank, G.B., Bianchi, C.P., ter Keurs, H.E.D.J. (eds) Excitation-Contraction Coupling in Skeletal, Cardiac, and Smooth Muscle. Advances in Experimental Medicine and Biology, vol 311. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3362-7_25
Download citation
DOI: https://doi.org/10.1007/978-1-4615-3362-7_25
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-6483-2
Online ISBN: 978-1-4615-3362-7
eBook Packages: Springer Book Archive