Lanthanides induce neurotransmitter release from the vesicular pool in rat brain synaptosomes

被引:0
作者
Lopatina, LP [1 ]
Wasseem, TV [1 ]
Fedorovich, S [1 ]
Konev, S [1 ]
机构
[1] Natl Acad Sci, Inst Biophys & Cell Engn, Minsk 220072, BELARUS
来源
BIOFIZIKA | 2005年 / 50卷 / 06期
关键词
synaptosomes; gadolinium; lanthanum; eyocytosis; acridine orange; neurotransmitter release;
D O I
暂无
中图分类号
Q6 [生物物理学];
学科分类号
071011 ;
摘要
The influence of lanthanoids on exocytosis was investigated. It was shown that gadolinium increases the spontaneous release of the glutamate nonmetabolizing analogue [H-3]D-aspartate. It was established using the fluorescent dye acridine orange that gadolinium and lanthanum induce exocytosis. The effect was dose-dependent and was maximum at 300 mu M Gd3+. The exocytosis induced by gadolinium was calcium-independent. It is suggested that lanthanides induce a vesicular release of neurotransmitters by the mechanisms common for all polyvalent cations.
引用
收藏
页码:1120 / 1124
页数:5
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