扶正解毒汤对染镍体外培养人支气管上皮细胞抗氧化酶活性及丙二醛含量的影响

目的:研究灌服中药扶正解毒汤(FJD)后兔血清拮抗硫酸镍(NiSO4)的细胞毒作用及其机制。方法:以NiSO4和不同剂量FJD含药血清共同处理体外培养人支气管上皮(16HBE)细胞,测定其存活率及活力,同时观察细胞内谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)活性以及丙二醛(MDA)含量的变化。结果:在镍暴露细胞培养体系中加入FJD含药血清,可提高该细胞的存活率和活力,增强细胞内GSH-Px及SOD活性,减少MDA的生成,其中以高剂量FJD含药血清的作用最为明显。结论:NiSO4可诱发细胞氧化应激的产生,FJD具有拮抗硫酸镍细胞毒性的作用,可能与其抗氧化应激功能有关。

Effects of FuzhengJiedu decoction on antioxidant enzyme activity and MDA contents of human bronchial epithelial cells exposed to NiSO4

Objective: To study the effects of pharmaco-serum from rabbits administrated intragastrically with Fuzheng Jiedu decoction(FJD) on injured human bronchial epithelial(16HBE) cells exposed to nickel sulfate(NiSO4).Methods: Cultured 16HBE cells were treated with both NiSO4 and different doses of FJD pharmaco-serum in vitro.The detections of cell activities and viabilities were carried out.Meanwhile,activities of glutathione peroxidase(GSH-Px) and superoxide dismutase(SOD) as well as maleic dialdehyde(MDA) contents were measured.Results: FJD pharmaco-serum could decrease mortalities and increase viabilities of 16HBE cells exposed to NiSO4.In cells co-treated with NiSO4 and FJD pharmaco-serum,the content of MDA was decreased,while GSH-Px and SOD activities were increased at the same time.High dose of FJD pharmaco-serum had the most dramatic effect.Conclusion: This study suggested that FJD could antagonize NiSO4-induced toxicity,which may be involved in its antioxidant function.