目的:研究舒肝宁注射液对人肝星状细胞LX2(HSC-LX2)细胞生长的影响,探讨其抗纤维化机制.方法:使用舒肝宁注射液处理HSC-LX2细胞,用细胞计数试剂盒-8(CCK8)法测定细胞的吸光度值,计算细胞增殖率.荧光定量聚合酶链式反应(PCR)法和免疫印迹法分别检测Ⅰ型胶原蛋白、Ⅲ型胶原蛋白和转化生长因子-β(TGF-β)的mRNA和蛋白水平.流式细胞术检测细胞周期分布及细胞凋亡率.结果:与未用药组比较,低、中、高浓度的舒肝宁注射液处理HSC-LX2细胞120 h对细胞增殖的抑制率分别为14.27％,16.37和18.67％(P<0.05).舒肝宁注射液处理组细胞Ⅰ型胶原蛋白和Ⅲ型胶原蛋白的mRNA和蛋白水平较未用药组明显降低(P<0.05).舒肝宁注射液阻滞细胞周期在G2/M期,诱导细胞的早期和晚期凋亡,最大凋亡率达到2.69％,诱导凋亡作用呈浓度依赖性(P<0.05).结论:舒肝宁注射液通过阻滞细胞周期进而抑制细胞增殖,同时促进细胞早期和晚期凋亡,下调Ⅰ型胶原蛋白和Ⅲ型胶原蛋白mRNA和蛋白表达水平,从而起到抗纤维化作用.

Objective To explore the feature of epileptiform discharges during day and night in patients with sleep epilepsy and its diagnosis value. Methods Ambulatory EEG (AEEG) was performed continuously for 24 hours in 91 patients with sleep epilepsy. The frequency of epileptiform discharges in wake phase and sleep phase were analyzed. Results Epileptiform discharges were observed in 71 patients. 4 patients showed epileptiform discharges only in wakefulness, 41 only in sleep and 26 both in wakefulness and sleep. 34 patients showed epileptiform discharges only in stage 1 and 2 of NREM sleep, and 33 patients displayed epileptiform discharges in whole cycle of sleep. Seizure frequency in the patients with epileptiform discharges in wakefulness was higher than those without epileptiform discharges or with epileptiform discharges in sleep (both P0.05).Conclusions The frequency of the epileptiform discharges is higher during sleep than wakefulness in patients with sleep epilepsy. Epileptiform discharges are more easily found by AEEG than routine EEG during episode, intermission and natural state of sleep.

目的: 了解睡眠/清醒不同发作时间癫痫患者24小时动态脑电图特点.方法:回顾性分析240例癫痫患者的24小时动态脑电图资料.结果:仅于睡眠中发作的癫痫患者AEEG上仅在睡眠中放电的比例高于清醒期和睡眠/清醒均发作患者,额叶癫痫患者于睡眠中发作者以及AEEG上单纯夜间放电者均明显多于颞叶癫痫患者,差异具有显著性(P<0.01).结论:额叶癫痫患者及临床上仅于睡眠中发作患者睡眠中放电明显高于其他癫痫患者,对此类睡眠中高发人群进行AEEG检查有助于提高诊断率.