枳黄方对酒精性肝损伤大鼠肝、胃脂质过氧化水平和血清ALT活性的影响

目的：探讨枳黄方（ZHF）防治酒精性肝损伤的机制.方法：通过ZHF保护性试验和ZHF治疗性试验,记录大鼠醉酒时间,采用分光光度法和血清生化法检测肝组织和胃黏膜超氧化物歧化酶（SOD）活力和脂质过氧化产物丙二醛（MDA）水平,以及血清丙氨酸转氨酶（ALT）的活性.结果：在ZHF保护性试验中,ZHF能缩短大鼠醉酒时间（P〈0.05）,显著降低肝脏和胃黏膜MDA含量（P〈0.05或P〈0.01）,显著提高肝脏和胃黏膜中SOD活力（P〈0.01）,使酒精性肝损伤大鼠血清中ALT活性显著降低（P〈0.01）.在ZHF治疗性试验中,ZHF对大鼠醉酒时间无影响,但使大鼠肝脏MDA含量和血清ALT含量显著下降（P〈0.01）,显著提高肝脏SOD活力（P〈0.01）.结论：ZHF能对抗酒精性肝损伤大鼠肝脏脂质过氧化,保护肝功能.ZHF保护性用药可防治酒精性肝损伤.     

Effect of subcellular localization of P21 on proliferation and apoptosis of HepG2 cells

This study examined the effect of subcellular localization of P21 on the proliferation and apoptosis of HepG2 cells.The coding genes of the wild and the mutant P21 were amplified by mega primer PCR fro...     

Influence of silencing TRAF6 with shRNA on LPS/TLR4 signaling <Emphasis Type="Italic">in vitro</Emphasis>

This study investigated the influence of silencing TRAF6 with shRNA on lipopolysaccharide(LPS)/toll-like receptor(TLR)-4 signaling pathway in vitro.Four plasmids(pGCsi-TRAF6-shRNA1,2,3,4) containing different shRNA sequences were designed and synthesized.The proliferation of RAW264.7 cells after transfected with these plasmids was measured by MTT assay.Inflammatory cellular models were established by LPS stimulation.Levels of TNF-α,IL-1β and TGF-β1 in the supernatants,mRNA expressions of TRAF6,IL-6 and COX-...