毒理性
丹参酮IIA磺酸钠对阿霉素诱导的脂质过氧化的保护作用被研究。数据显示,使用丹参酮IIA磺酸钠处理可以防止小鼠因阿霉素引起的体重下降。研究发现,丹参酮IIA磺酸钠处理的小鼠心肌脂质过氧化水平低于阿霉素处理的小鼠。一些内源性抗氧化酶的活性,如超氧化物歧化酶、谷胱甘肽过氧化物酶和过氧化氢酶,在丹参酮IIA磺酸钠组中高于阿霉素组。体外实验表明,丹参酮IIA磺酸钠可以抑制阿霉素诱导的线粒体脂质过氧化和肿胀。丹参酮IIA磺酸钠可以剂量依赖性地清除心脏匀浆中的阿霉素半醌自由基。因此,丹参酮IIA磺酸钠的保护作用可能不仅与其抗氧化活性有关,还与其调节心脏抗氧化酶活性有关。
Protective effects of sodium tanshinone IIA sulphonate against adriamycin-induced lipid peroxidation were investigated. Data showed that treatment with sodium tanshinone IIA sulphonate could prevent mice from decrease in body weight caused by adriamycin. It was found that myocardial lipid peroxidation in sodium tanshinone IIA sulphonate-treated mice was lower compared with that in adriamycin-treated ones. The activities of some endogenous antioxidant enzymes, such as superoxide dismutase, glutathione peroxidase and catalase, were higher in the sodium tanshinone IIA sulphonate group than that in the adriamycin group. In vitro experiments showed that sodium tanshinone IIA sulphonate could inhibit adriamycin-induced mitochondrial lipid peroxidation and swelling. Sodium tanshinone IIA sulphonate could scavenge adriamycin semiquinone free radical in heart homogenate dose-dependently. Thus, protective effects of sodium tanshinone IIA sulphonate may not only be related to its antioxidant activity but also to its regulation of antioxidant enzyme activities in the heart.
来源:Hazardous Substances Data Bank (HSDB)