Effect of aminazine and triftazin on the synaptosome membranes of the rat cerebral cortex
Avdulov, N.A.; Eremenko, A.V.; Val'dman, A.V.
Biulleten' Eksperimental'noi Biologii i Meditsiny 105(2): 173-175
1988
ISSN/ISBN: 0365-9615 PMID: 3349147 Document Number: 308944
Fluorescent probes 1,6-diphenyl-1,3,5-hexatriene (DPH) and pyrene were employed in studying the effect of aminazine and triftazin versus that of imipramine on microviscosity of rat brain cortex synaptosomal membranes. Unlike imipramine, the neuroleptics decrease microviscosity of membrane's lipid bilayer. All drugs decrease fluorescence of endogenous tryptophan, but fail to change fluorescence of L-tryptophan in the solution. It is concluded that neuroleptics induce conformational perturbations in membrane-bound proteins modifying microviscosity of lipid bilayer whereas imipramine changes the surface electric charge of lipid bilayer of synaptosomal membranes.