牛磺酸对局灶性脑缺血大鼠神经干细胞因子mRNA表达的影响

目的 观察牛磺酸对大鼠缺血性脑损伤后神经干细胞因子mRNA表达的影响.方法 成年雄性SD大鼠63只,采用线栓法建立右侧大脑中动脉缺血再灌注模型,缺血时间为2 h后再灌注.应用随机数字表进行完全随机化的分组,分为治疗组(自造模当日开始,静脉注射牛磺酸80mg/kg体重,持续10 min,1次/d,连用7 d)和对照组(静...

Effects of taurine on the expression of neurons SCF mRNA of focal cerebral ischemia in rat

Objective To investigate the effects of taurine on the expression of stem cell factor mRNA of the focal cerebral ischemia in rat.Methods 63 adult male rats were randomly divided into taurine-treated group (Taurine, 80 mg/kg, began at the day of MCAO and continuously intravenous injection for 10 min, daily for 7 days) and controlled group (0.9% normal saline, 1 ml, continuously intravenous injection for 10 min daily for 7 days). The rats received right middle cerebral artery occlusion at 2h and different hours of reperfusion. Expression of SCF was detected by in situ hybridization in the rats subjected to2h,24h,3d,7d, 14 d of reperfusion and sham-operated group (n=3). Results Low level SCF mRNA expressions were found in cortex, striatum and extraventricular zone in sham-operated group. The expression of SCF mRNA in ischemic hemisphere of controlled group increased markedly compared with sham-operated group (t=2.16~25.19, P＜ 0.05), besides that of 2 h in cortex, 2 h in striatum, 2h and 14d in extraventricular zone. SCF mRNA expression in the treatment group increased markedly in cortex,striatum and extraventricular zone at 3d and 7d(t=5.19~ 26.17,P＜0.05). Conclusion Taurine increased the SCF mRNA expression in MCAO rats, therefore it might promote the creation of neural stem cell.