Capsaicin blocks synaptically activated potassium conductance in snail neurone.

Abstract:

:The effect of capsaicin was studied on non-cholinergic inhibitory postsynaptic currents (IPSC). The experiments were performed on an identified snail neurone using the single electrode voltage-clamp technique. The IPSC decayed with a bi-exponential time course. Capsaicin (200 microM) reversibly blocked both components of the transmitter-activated potassium conductance similarly to other potassium channel blockers such as Ba2+, quinine or 4-aminopyridine. Externally applied TEA+ exclusively attenuated the slow phase. Capsaicin prolonged the action potential duration and decreased the membrane outward current in the postsynaptic neurone.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Erdélyi L,Such G

doi

10.1016/0304-3940(84)90332-x

subject

Has Abstract

pub_date

1984-03-09 00:00:00

pages

75-9

issue

1

eissn

0304-3940

issn

1872-7972

pii

0304-3940(84)90332-X

journal_volume

45

pub_type

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