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Comparison of Nifedipine and Nisoldipine on Human Arteries and Human Cardiac Tissues In Vitro

  • T. Godfraind
  • C. Eglème
  • M. Finet
  • B. Debande
  • P. Jaumin

Summary

Studies were carried out on the action of nifedipine and nisoldipine on the contractile activity of human, isolated, coronary and mammary arteries and human, isolated, auricular and ventricular muscles. Nisoldipine depressed in a dose dependent manner the spontaneous rhythmic contractions displayed by the coronary artery preparations and at 1 nM abolished these contractions. Nisoldipine was twenty times more potent than nifedipine as an inhibitor of increase in tone induced by depolarization (100 mM K+). The rhythmic activity induced by serotonin (10μM) was more sensitive to nisoldipine than to nifedipine.

Nifedipine was five times (ventricular muscles) and ten times (auricular muscles) more potent than nisoldipine as negative inotropic agent.

From such observations in human isolated tissues, it appears that nisoldipine has a higher vascular selectivity than nifedipine. This indicates potential differences in the clinical use of these dihydropyridines.

Keywords

Contractile Activity Human Coronary Artery Ventricular Muscle Calcium Entry Blocker Cardiac Preparation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • T. Godfraind
  • C. Eglème
  • M. Finet
  • B. Debande
  • P. Jaumin

There are no affiliations available

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