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大鼠脑区中[3H]-多巴胺和[3H]-5-羟色胺摄取系统的伴随发育。

Concomitant development of [3H]-dopamine and [3H]-5-hydroxytryptamine uptake systems in rat brain regions.

作者信息

Kirksey D F, Slotkin T A

出版信息

Br J Pharmacol. 1979 Nov;67(3):387-91. doi: 10.1111/j.1476-5381.1979.tb08692.x.

Abstract

1 Synaptosomal uptake mechanisms of 5-hydroxytryptamine and dopamine were examined in cerebral cortex, corpus striatum and midbrain plus brainstem of developing rats. 2 In all regions, there was generally a parallel biphasic development of both uptake systems; the most rapid increases occurred in the first two weeks postpartum, followed by a slower rate of increase. 3 Kinetic studies with dopamine indicated that the maturation involved increases in maximal uptake without a change in the substrate Km, suggesting that there is a change in the number or terminals but not in the uptake system per se.

摘要
  1. 在发育中大鼠的大脑皮层、纹状体以及中脑加脑干中,研究了5-羟色胺和多巴胺的突触体摄取机制。2. 在所有区域,这两种摄取系统总体上呈现平行的双相发育;产后前两周增长最为迅速,随后增速减缓。3. 对多巴胺的动力学研究表明,成熟过程涉及最大摄取量的增加,而底物米氏常数(Km)不变,这表明是末梢数量发生了变化,而非摄取系统本身发生了变化。

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本文引用的文献

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Embryologic demonstration of a nigro-striatal projection in the mouse.
Brain Res. 1972 Sep 15;44(1):278-82. doi: 10.1016/0006-8993(72)90384-8.
6
Prenatal development of the biogenic amine systems of the mouse brain.
Dev Biol. 1973 Aug;33(2):300-11. doi: 10.1016/0012-1606(73)90139-5.
10
Catecholamines in fetal and newborn rat brain.胎鼠和新生鼠脑中的儿茶酚胺
J Neurochem. 1973 Jul;21(1):61-7. doi: 10.1111/j.1471-4159.1973.tb04225.x.

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