Different effects of calcium flux-blocking agents on light and potassium stimulated release of taurine from retina.

Abstract:

:Conditions for the stimulation of taurine release by illumination or increased K+ concentrations were established. The effect of Mg2+, ruthenium red and verapamil on taurine release induced by both procedures was compared. All these agents antagonize Ca2+-dependent release of neurotransmitters. Illumination-induced release of taurine was not blocked by any of these agents while the K+-induced release was blocked by all of them. It is discussed whether illumination and potassium act through processes that increase Ca2+ influx through different mechanisms, or if illumination-induced release is a Ca2+-independent process.

journal_name

Brain Res

journal_title

Brain research

authors

López-Colomé A,Erlij D,Pasantes-Morales H

doi

10.1016/0006-8993(76)90054-8

subject

Has Abstract

pub_date

1976-09-03 00:00:00

pages

527-34

issue

3

eissn

0006-8993

issn

1872-6240

pii

0006-8993(76)90054-8

journal_volume

113

pub_type

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