[Electrophysiological properties of intact endothelial cells from rat inferior vena cava].
Membrane potential has been recorded from endothelial cells of the rat inferior vena cava. The resting membrane potential of venous endothelial cells was 69 +/- 4 mV, which was about 20 mV more negative than resting potential of rat arterial endothelial cells measured under the same experimental conditions. 40% of the vein studied demonstrated spontaneous oscillations of endothelial membrane potential. These oscillations were found to be Ca2+ action potentials generated in the vein smooth muscle and electrotonically transferred into the endothelial cells.
Marchenko
S M
SM
A.A. Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kiev.
D000818:Animals; D004730:Endothelium, Vascular / Q000166:cytology / Q000502:physiology*; D004847:Epithelial Cells / Q000502:physiology*; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000502:physiology; D018408:Patch-Clamp Techniques; D051381:Rats; D014682:Vena Cava, Inferior / Q000166:cytology / Q000502:physiology*