李伟, 魏尔清, 王梦令, 刘路英. 依达拉奉、米诺环素及ONO-1078对缺氧缺糖诱导大鼠海马脑片电生理改变的作用J. 药学学报, 2004, 39(2): 81-84.
引用本文: 李伟, 魏尔清, 王梦令, 刘路英. 依达拉奉、米诺环素及ONO-1078对缺氧缺糖诱导大鼠海马脑片电生理改变的作用J. 药学学报, 2004, 39(2): 81-84.
LI Wei, WEI Er-qing, WANG Meng-ling, LIU Lu-ying. Effects of edaravone, minocycline and ONO-1078 on oxygen/glucose deprivation-induced electrophysiological alteration in rat hippocampal slicesJ. Acta Pharmaceutica Sinica, 2004, 39(2): 81-84.
Citation: LI Wei, WEI Er-qing, WANG Meng-ling, LIU Lu-ying. Effects of edaravone, minocycline and ONO-1078 on oxygen/glucose deprivation-induced electrophysiological alteration in rat hippocampal slicesJ. Acta Pharmaceutica Sinica, 2004, 39(2): 81-84.

依达拉奉、米诺环素及ONO-1078对缺氧缺糖诱导大鼠海马脑片电生理改变的作用

Effects of edaravone, minocycline and ONO-1078 on oxygen/glucose deprivation-induced electrophysiological alteration in rat hippocampal slices

  • 摘要: 目的建立离体海马脑片缺氧缺糖(OGD)电生理变化模型,观察依达拉奉、米诺环素和ONO-1078 pranlukast,4-氧-8-[对-(4-苯丁氧基)苯甲酰氨基]-2-(5-四氮基)-4H-1-苯并吡喃半水化合物的神经保护作用。方法 大鼠海马脑片以无氧无糖处理,记录脑片群峰电位(PS),部分实验以TTC染色观察脑片活性。结果OGD处理4 min为最佳损伤条件,1 h后可恢复至基础水平的(29±6)%。自由基清除剂依达拉奉(1和10 μmol·L-1)明显增强PS波的恢复;抗炎药米诺环素(10 μmol·L-1)和白三烯受体拮抗剂ONO-1078(1 μmol·L-1)无显著恢复作用;阳性对照药氯胺酮也浓度依赖性促进PS恢复。结论4 min OGD为离体海马脑片缺血电生理变化的可行模型;依达拉奉对OGD脑片损伤有浓度依赖性保护作用,而米诺环素和ONO-1078未显示保护作用。

     

    Abstract: AimTo establish an in vitro model of hippocampal slice to detect electrophysiological alteration after oxygen/glucose deprivation (OGD), and to observe the effects of edaravone, minocycline and ONO-1078 pranlukast, 4-oxo-8-[P-(4-phenylbutyloxy) benzoyl-amino]-2-(tetrazol-5-yl)-4H-1-benzopyran hemihydrate. MethodsHippocampal slices from rats were perfused with artificial cerebrospinal fluid lacking oxygen and glucose for 3, 4, 7 and 10 min. The population spike (PS) was recorded, and 2,3,5-triphenyltetrazolium chloride (TTC) staining was performed in some experiments, to detect the slice viability in the presence or absence of drugs in the perfusion solution. ResultsFour min of OGD treatment was the most suitable duration for induction of slice injury, and PS amplitudes were recovered to (29±6)% of baseline values within 1 h after 4 min OGD. Edaravone, a free radical scavenger, at 1 and 10 μmol·L-1 significantly increased the recovery rate to (56±13)% and (69±12)% of baseline respectively 1 h after OGD. However, the anti-inflammatory drug minocycline (10 μmol·L-1) and leukotriene receptor antagonist ONO-1078 (1 μmol·L-1) did not increase the recovery. NMDA receptor antagonist ketamine, as a positive control, also promoted the recovery concentration-dependently. ConclusionOGD for 4 min was a feasible in vitro ischemia model for determination on electrophysiological alteration in hippocampal slices. Edaravone showed concentrion-dependent protective effect on OGD injury, and anti-inflammatory drugs minocycline and ONO-1078 showed no effect.

     

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