首页> 外文期刊>Life sciences >ANTAGONIZING EFFECTS OF VA-045 ON REDUCED ACTIVITY OF RAT LOCUS COERULEUS NEURONS FOLLOWING HEAD INJURY OR INTRAVENOUS INJECTION OF CLONIDINE
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ANTAGONIZING EFFECTS OF VA-045 ON REDUCED ACTIVITY OF RAT LOCUS COERULEUS NEURONS FOLLOWING HEAD INJURY OR INTRAVENOUS INJECTION OF CLONIDINE

机译:VA-045对大鼠颅脑损伤或静脉注射可乐定后斑马尾神经元活性降低的拮抗作用

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Based on the finding that VA-045, a novel apovincaminic acid derivative, had improved disturbance in consciousness, we examined the effects of the drug an the electrical activity of locus coeruleus (LC) neurons in animal models of consciousness disturbance. The animal models of consciousness disturbance used in this experiment were closed head injury (CHI) and intravenous injection of clonidine. CHI as well as clonidine injection reduced the spontaneous activity of LC neurons. The reduction of the spontaneus activity of LC neurons following CHI or clonidine injection was restored by intravenous injection of VA-045. The change of LC neuronal activity induced by VA-045 preceded desynchronization of EEG. These results suggest that VA-045 exerts its ameliorating effect on consciousness disturbance, at least in part, by augmenting the spontaneous activity of noradrenergic LC neurons. [References: 24]
机译:基于VA-045(一种新的载脂蛋白成分)可改善意识障碍的发现,我们在意识障碍动物模型中检查了药物和蓝斑(LC)神经元电活动的作用。在该实验中使用的意识障碍动物模型是闭合性颅脑损伤(CHI)和静脉注射可乐定。 CHI和可乐定注射液可降低LC神经元的自发活动。 CHI或可乐定注射后,LC神经元的自发性活动的降低可通过静脉注射VA-045来恢复。 VA-045诱导的LC神经元活性的改变先于脑电图失步。这些结果表明VA-045至少部分地通过增强去甲肾上腺素能LC神经元的自发活性来对意识障碍发挥改善作用。 [参考:24]

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