Calcium transport and fluorescence polarization of 1,6-diphenyl-1, 3,5-hexatriene in sarcoplasmic reticulum from normal and ethanol-tolerant rats.

Abstract:

:Sarcoplasmic reticulum (SR) of high purity and functional integrity was isolated from skeletal muscle of normal and ethanol-tolerant rats. Ethanol at low concentrations (0.1 to 0.2 M), added in vitro to isolated SR, resulted in slight inhibition of both calcium loading and calcium-stimulated ATPase rates. Higher concentrations of ethanol resulted in further inhibition of calcium loading, but not of calcium-stimulated ATPase. Fluorescence polarization of 1,6-diphenyl-1,3,5-hexatriene (DPH) in isolated SR membranes showed a small decrease in anisotropy with the addition of ethanol in vitro. Sarcoplasmic reticulum from normal and ethanol-tolerant rats did not differ in calcium pump function or in fluorescence polarization of DPH, in the presence or absence of ethanol.

journal_name

Exp Neurol

journal_title

Experimental neurology

authors

Mrak RE

doi

10.1016/0014-4886(83)90308-4

subject

Has Abstract

pub_date

1983-06-01 00:00:00

pages

573-81

issue

3

eissn

0014-4886

issn

1090-2430

journal_volume

80

pub_type

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