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[Electrical properties of intact rabbit aortic endothelium]
V V Iarots'kyĭ1, V F Sagach, S M Marchenko
1A.A. Bogomoletz Institute of Physiology, National Academy of Science of Ukraine, Kiev.
Fiziolohichnyi Zhurnal (Kiev, Ukraine : 1994)
|April 12, 2001
Abstract:
The ionic nature of membrane potential and electrical reactions to vasodilators and vasoconstrictors of intact endothelium of rabbit aorta have been investigated. It has been shown that K+ and Na+, but not Cl- permeability form membrane resting potential. The endothelium was hyperpolarized by ACh. ATP produced the triphasic reaction of short small depolarization, hyperpolarization followed by depolarization. Both noradrenalin and serotonin evoked depolarization.