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- W3030544087 abstract "目的 探讨5-羟色胺1A(5-HT1A)受体激动剂8-OH-DPAT对左旋多巴诱发的运动并发症的细胞学与行为学效应.方法 通过6-羟基多巴胺立体定向注射至大鼠前脑内侧前脑束建立帕金森病(Parkinson disease,PD)动物模型.对模型成功的PD大鼠进行两套实验:第1套实验中3组PD大鼠接受每日2次左旋多巴甲酯(50 mg/kg加12.5 mg/kg苄丝肼)腹腔注射,持续22 d.在第23天左旋多巴注射前,3组PD大鼠先分别接受8-OH-DPAT、8-OH-DPAT+5-羟色胺1A(5-HT1A)受体阻断剂WAY-100635(0.1 mg/kg)及溶剂对照注射;第2套实验中2组PD大鼠每日2次分别接受左旋多巴/苄丝肼+8-OH-DPAT与左旋多巴/苄丝肼+溶剂,持续22 d.评估旋转时间、关期发生频率情况;采用蛋白印迹法检测纹状体区谷氨酸受体1(GluR1)亚细胞分布及GluR1的845位丝氨酸(GluR1Ser845)磷酸化的表达情况.结果 8-OH-DPAT逆转了左旋多巴所诱导的PD大鼠旋转时间的缩短,延长约27.8%±6.1%;并使关期发生频率减少约7.2%±1.7%.5-HT1A受体阻断剂WAY-100635与8-OH-DPAT联合应用则消除了8-OH-DPAT的效应,提示所观察到的8-OH-DPAT的效应是通过5-HT1A受体起作用的.此外,8-OH-DPAT能调节与运动并发症密切相关的GluR1的亚细胞分布,且使GluR1Ser845的磷酸化水平降低约22.1%±3.5%.结论 激动5-HT1A受体的药物可能是治疗及预防PD运动并发症有益的疗法。" @default.
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- W3030544087 date "2007-02-23" @default.
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- W3030544087 title "5-HT1A receptor agonist 8-OH-DPAT improves motor complications in Parkinson's disease" @default.
- W3030544087 doi "https://doi.org/10.3760/j.issn:1006-7876.2007.02.003" @default.
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