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首页> 外文期刊>Journal of Neuroscience Methods >Simultaneous monitoring multiple neurotransmitters and neuromodulators during cerebral ischemia/reperfusion in rats by microdialysis and capillary electrophoresis.
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Simultaneous monitoring multiple neurotransmitters and neuromodulators during cerebral ischemia/reperfusion in rats by microdialysis and capillary electrophoresis.

机译:通过微透析和毛细管电泳同时监测大鼠脑缺血/再灌注过程中的多种神经递质和神经调节剂。

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In this work, focal cerebral ischemia/reperfusion was induced by the model of middle cerebral artery occlusion. The dialysates of extracellular fluid in hypothalamus were obtained by using brain microdialysis technique. An efficient and sensitive chiral capillary electrophoresis with laser-induced fluorescence detection procedure was developed for the simultaneous determination of multiple amino acids neurotransmitter including Arg, Lys, Trp, GABA, l-Ser, Ala, Tau, Gly, Glu and Asp; catcholamine (dopamine) and neuromodulator (d-Ser and O-phosphoethanolamine) in microdialysate. Different parameters that influenced CE separation were optimized. The optimal method was used to investigate the dynamic changes of neurotransmitters and neuromodulators during cerebral ischemia/reperfusion. The results indicated that extracellular levels of multiple neurotransmitters and neuromodulators were elevated during cerebral ischemia/reperfusion. The dynamic changes and functional status of releasable neurotransmitters and neuromodulators during ischemia/reperfusion were discussed.
机译:在这项工作中,通过大脑中动脉闭塞模型诱发局灶性脑缺血/再灌注。下丘脑细胞外液的透析液通过脑微透析技术获得。开发了一种高效且灵敏的手性毛细管电泳,采用激光诱导的荧光检测程序,用于同时测定多种氨基酸的神经递质,包括Arg,Lys,Trp,GABA,I-Ser,Ala,Tau,Gly,Glu和Asp。微量透析液中的多酚胺(多巴胺)和神经调节剂(d-Ser和O-磷酸乙醇胺)。优化了影响CE分离的不同参数。采用最佳方法研究了脑缺血/再灌注过程中神经递质和神经调节剂的动态变化。结果表明,在脑缺血/再灌注期间,多种神经递质和神经调节剂的细胞外水平升高。讨论了缺血/再灌注过程中可释放神经递质和神经调节剂的动态变化和功能状态。

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