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自由基具有很高的反应活性,主要产生于细胞代谢过程中,亦可由环境因素作用而产生。由于它的强氧化活性,可使细胞中的多不饱和脂肪酸(polyunsatur-atedfattyacid,PUFA)发生脂质过氧化反应,形成脂质过氧化物(lipidperoxide,?
Free radicals have a high reactivity and are mainly produced in the process of cellular metabolism and can also be produced by environmental factors. Due to its strong oxidative activity, lipid peroxidation of polyunsaturated fatty acid (PUFA) in cells can occur, resulting in lipid peroxides.