首页> 外文期刊>Life sciences >Depletion of brain histamine induced by alpha-fluoromethylhistidine enhances radial maze performance in rats with modulation of brain amino acid levels.
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Depletion of brain histamine induced by alpha-fluoromethylhistidine enhances radial maze performance in rats with modulation of brain amino acid levels.

机译:由α-氟甲基组氨酸诱导的脑组胺的耗竭可通过调节脑氨基酸水平增强大鼠的径向迷宫性能。

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摘要

We examined the effects of repeated administration of (S)-alpha-fluoromethylhistidine (FMH), a specific inhibitor of histidine decarboxylase (HDC), on radial maze performance and brain contents of histamine and amino acids in rats. By daily subcutaneous (s.c.) administration of FMH (100 mg/kg), rats showed significant enhancement of a radial maze performance without changes in locomotion. Six days after FMH treatment, the histamine levels both in the cerebral cortex and diencephalon decreased significantly. However, the glutamate and glycine levels significantly increased in the cerebral cortex and hippocampus. These results suggest that FMH enhances the acquisition phase of radial maze study with the increases in glutamate and glycine levels in the cerebral cortex and hippocampus of rats.
机译:我们检查了重复给药(S)-α-氟甲基组氨酸(FMH),组氨酸脱羧酶(HDC)的特异性抑制剂,对大鼠径向迷宫性能以及组胺和氨基酸的脑内含量的影响。通过每天皮下(s.c.)施用FMH(100 mg / kg),大鼠显示出径向迷宫性能的显着增强,而运动没有变化。 FMH治疗6天后,大脑皮层和间脑中的组胺水平均明显下降。但是,大脑皮层和海马中的谷氨酸和甘氨酸水平显着增加。这些结果表明,FMH通过增加大鼠大脑皮层和海马中谷氨酸和甘氨酸的水平来增强放射状迷宫研究的获取阶段。

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