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The effect of SR 142801, a blocker of tachykinin NK-3 receptors, on synaptic transmission in the rat caudal mesenteric ganglion
Pasichnichenko OM, Skok VI.
A. A. Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kiev
Abstract
Effects of tachykinin NK-3 receptors antagonist SR 142801 on the synaptic transmission in the rat's caudal mesenteric ganglion were investigated using extracellular recording of compound action potentials (CAPs) from the ganglion nerves. It is shown that antagonist of NK-3 receptors SR 142801 (2.5.10(-7) mol/l) decreased the amplitude and square of CAPs obtained by stimulating of intermesenteric nerve (IMN) and leading off from the colonic nerve, after high-frequency stimulation of IMN. It is suggests that tachykinin NK-3 receptors take part in SP-ergic synaptic transmission through the rat's caudal mesenteric ganglion.
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© National Academy of Sciences of Ukraine, Bogomoletz Institute of Physiology, 2014-2024.
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