乙酰半胱氨酸抗非酒精性脂肪性肝炎的体外活性研究

被引:5
作者
邵益丹
史婷婷
赵艳梅
潘旭旺
琚立萍
张晶
庄让笑
机构
[1] 杭州市西溪医院
关键词
乙酰半胱氨酸; 非酒精性脂肪性肝炎; 胰岛素抵抗; 炎症反应;
D O I
暂无
中图分类号
R575 [肝及胆疾病];
学科分类号
100201 [内科学];
摘要
目的研究乙酰半胱氨酸(N-acetylcysteine,NAC)对游离脂肪酸(free fatty acid,FFA)诱导的L02细胞的非酒精性脂肪性肝炎(nonalcoholic steatohepatitis,NASH)模型的炎症反应和胰岛素抵抗的活性。方法用FFA处理L02细胞,建立NASH细胞模型;MTT法检测NAC对细胞生长抑制率的影响,并依此优选3个安全给药浓度;油红染色法观察细胞内的脂质沉积情况;Elisa法检测细胞的IL-8、TNF-α和葡萄糖转运蛋白-4(glucose transporter,GLUT-4)含量;Western blot及Elisa法检测细胞的胰岛素受体(insulin receptor,IR)含量。结果 NAC在10 600.0μg·m L-1的最大给药浓度时其细胞生长抑制率仅为34.10%,因此设定100,150和250μg·m L-13个给药浓度;NAC各给药组较模型组82.45%的细胞脂变率,分别下降至61.77%,68.08%和79.28%,差异具有统计学意义(P<0.01)且呈浓度依赖性;NAC各给药组的GLUT-4和IR含量较模型组均显著提高(P<0.01);NAC各给药组的TNF-α和IL-8含量较模型组均显著下降(P<0.01)。结论 NAC的细胞毒性极小,可不同程度地降低NASH细胞的脂变率,尤其可改善模型细胞的胰岛素抵抗及炎症反应水平,表现出在治疗NASH方面的潜在价值。
引用
收藏
页码:200 / 203
页数:4
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