异甘草酸镁对大鼠肝星状细胞增殖和氧应激的影响

目的探讨异甘草酸镁对大鼠肝星状细胞(HSC)增殖和氧应激的影响。方法通过绘制细胞生长曲线和四甲基偶氮唑盐法检测不同浓度的异甘草酸镁对原代HSC和HSC株增殖的影响,并同时观察其形态变化。通过检测次氮基三乙酸铁(Fe-NTA)作用于以不同浓度异甘草酸镁培养的HSC:24 h后上清液中超氧化物歧化酶(SOD)活性和丙二醛(MDA)含量,观察异甘草酸镁对HSC氧应激的影响。结果同对照组比较,一定浓度范围的异甘草酸镁对HSC的增殖具有显著的抑制作用。在Fe-NTA诱导的氧应激中,一定浓度范围的异甘草酸镁可有效提高HSC的 SOD活性和降低MDA含量。结论异甘草酸镁对HSC的增殖具有明显的抑制作用,并且对Fe-NTA诱导的氧应激具有保护作用。

Effect of magnesium isoglycyrrhizinate on the proliferation and oxidative stress of rat hepatic stellate cells in virtro

Objective To investigate the effect of magnesium isoglycyrrhizinate on the proliferation and oxidative stress of rat hepatic stellate cells (HSCs). Methods The effect of various concentrations of maganesium isoglycyrrhizinate on the proliferation of primary rat HSCs and HSCs strains were measured by making cell growth curves and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphennylterazolium bromide (MTT) colorimetric assay. Morphological changes of the rat HSCs were also studied. After rat HSCs were incubated with various concentrations of maganesium isoglycyrrhizinate and ferric nitrilotriacetate (Fe-NTA) for 24 hours, the activity of superoxide dismutase (SOD) and contents of malondialdehyde (MDA) in supernates were measured to observe the effect of magnesium isoglycyrrhizinate on the oxidative stress of rat HSCs. Results Compared with the control group, the proliferation of rat HSCs was significantly inhibited when the concentration of magnesium isoglycyrrhizinate in the medium reached a certain level range. In the oxidative stress induced by Fe-NTA, magnesium isoglycyrrhizinate, within a certain strength range, obviously enhanced the activity of SOD and decreased the contents of MDA in supemates of rat HSCs culture media. Conclusions Magnesium isoglycyrrhizinate could significantly inhibit the proliferation of rat HSCs and it, within a certain strength range, exert protective effects in the oxidative stress induced by Fe-NTA.