87Rb NMR studies of the perfused rat heart.
We have studied 87Rb+ fluxes in the perfused rat heart using nuclear magnetic resonance spectroscopy (NMR). A simple model for the interpretation of the data is presented. A comparison of radioactively measured K+ fluxes and the K+ fluxes deduced from the 87Rb+ measurements shows them to be very similar. This method provides a means of noninvasively measuring uni-directional K+ fluxes in the heart.
Allis
J L
JL
Department of Biochemistry, University of Oxford, England.
Snaith
C D
CD
Seymour
A M
AM
Radda
G K
GK
D000818:Animals; D003326:Coronary Circulation; D006321:Heart / Q000502:physiology*; D006339:Heart Rate; D009682:Magnetic Resonance Spectroscopy; D010477:Perfusion; D011188:Potassium / Q000502:physiology*; D051381:Rats; D012413:Rubidium
D012413:Rubidium; D011188:Potassium