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用不同浓度的(-)-3H-去甲肾上腺素对神经元内去甲肾上腺素储存进行差异标记。

Differential labelling of intraneuronal noradrenaline stores with different concentrations of (-)-3H-noradrenaline.

作者信息

Hughes J

出版信息

Br J Pharmacol. 1973 Feb;47(2):428-30. doi: 10.1111/j.1476-5381.1973.tb08342.x.

Abstract

Isolated preparations of the rabbit vas deferens were incubated with (--)-(3)H-nor- adrenaline. A preferential release of (3)H-noradrenaline was demonstrated after electrical stimulation of the intramural nerves in those tissues labelled with 10 ng/ml (3)H-noradrenaline. There was no preferential release of (3)H-noradrenaline when the vasa were initially labelled with 100 ng/ml (3)H-noradrenaline. It is concluded that low concentrations of (3)H-noradrenaline do not mix homogeneously with the total tissue store but enter a small easily releasable store.

摘要

将兔输精管的离体标本与(--)-(3)H-去甲肾上腺素一起孵育。在用10 ng/ml(3)H-去甲肾上腺素标记的那些组织中,电刺激壁内神经后,显示出(3)H-去甲肾上腺素的优先释放。当输精管最初用100 ng/ml(3)H-去甲肾上腺素标记时,没有(3)H-去甲肾上腺素的优先释放。得出的结论是,低浓度的(3)H-去甲肾上腺素不会与整个组织储存均匀混合,而是进入一个小的易于释放的储存库。

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