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1982年Elek发现在色素类和混合类型胆结石中存在g_0=2003,△H_(pp)=0.87mT的电子顺磁共振(EPR)信号。它与大多数生物体系中的自由基信号相似,其g_0值与自由电子的g值相近。实验还证实该信号的强弱与胆结石中胆红素的含量呈线性关系。这一结果推动了胆红素既能损伤细胞,又能在体内表现抗氧化作用的双秀生物效应的研究,它们可能
Elek 1982 found that there was an EPR signal with g_0 = 2003 and △ H_ (pp) = 0.87 mT in the pigment and mixed type gallstones. It is similar to the free radical signal in most biological systems and has a g_0 value similar to that of free electrons. Experiments also confirmed the strength of the signal and the gallstone bilirubin content was linear. This result promotes the study of the biological effects of Shuangxiu that bilirubin both damages cells and displays antioxidant effects in the body and may