Energetics of the Na(+) pump in the heart

J Cardiovasc Electrophysiol. 2006 May:17 Suppl 1:S127-S133. doi: 10.1111/j.1540-8167.2006.00397.x.

Abstract

Movement of ions across the cell membrane is driven by the free energy released from ATP hydrolysis. Here we will briefly review the chemistry of Na(+), K(+)-ATPase reaction; we will also review some recent results defining the relationship between the energetic driving force and Na(+) efflux by the Na(+) pump in the normal myocardium and then discuss this relationship for pathophysiologic states in the heart.

Publication types

  • Research Support, N.I.H., Extramural
  • Review

MeSH terms

  • Adenosine Triphosphate / metabolism
  • Animals
  • Energy Metabolism / physiology*
  • Heart / physiology*
  • Homeostasis / physiology
  • Humans
  • Ion Channel Gating / physiology*
  • Membrane Potentials / physiology
  • Myocytes, Cardiac / physiology
  • Signal Transduction / physiology*
  • Sodium / metabolism*
  • Sodium Channels / physiology*
  • Sodium-Potassium-Exchanging ATPase / physiology*

Substances

  • Sodium Channels
  • Adenosine Triphosphate
  • Sodium
  • Sodium-Potassium-Exchanging ATPase