引用本文:
Zheng Hong YANG, Kui WANG, Xiang Tao LIU. THE NATURE AND SOURCE OF ESR SIGNAL IN BILIRUBIN[J]. Chinese Chemical Letters,
1990, 1(1): 41-44.
Citation: Zheng Hong YANG, Kui WANG, Xiang Tao LIU. THE NATURE AND SOURCE OF ESR SIGNAL IN BILIRUBIN[J]. Chinese Chemical Letters, 1990, 1(1): 41-44.
Citation: Zheng Hong YANG, Kui WANG, Xiang Tao LIU. THE NATURE AND SOURCE OF ESR SIGNAL IN BILIRUBIN[J]. Chinese Chemical Letters, 1990, 1(1): 41-44.
THE NATURE AND SOURCE OF ESR SIGNAL IN BILIRUBIN
摘要:
The ESR signals of bilirubin-IXα were studied including the samples treated with free radical generating and inhibiting systems, i.e.X-X0., Fe/EDTA, SOD, mannitol/ascorbate, DTPA, KCN et al.These stable signals all comprise those originated from a semiquinone radical(g=2.0012)and superoxide radical(g11=2.041, g⊥=2.0040).The latter is shown to be bound with metal ionsespecially iron, chelated by bilirubin.The iron probably comes from bilirubin precursor---hemootobin.Active oxygen free radical scavengers may destroy these radicals.Kinetic curves of regeneration of the bilirubin radicals have been determined.Bilirubin is discussed as"active oxygen trap"in mammatians.
English
THE NATURE AND SOURCE OF ESR SIGNAL IN BILIRUBIN
Abstract:
The ESR signals of bilirubin-IXα were studied including the samples treated with free radical generating and inhibiting systems, i.e.X-X0., Fe/EDTA, SOD, mannitol/ascorbate, DTPA, KCN et al.These stable signals all comprise those originated from a semiquinone radical(g=2.0012)and superoxide radical(g11=2.041, g⊥=2.0040).The latter is shown to be bound with metal ionsespecially iron, chelated by bilirubin.The iron probably comes from bilirubin precursor---hemootobin.Active oxygen free radical scavengers may destroy these radicals.Kinetic curves of regeneration of the bilirubin radicals have been determined.Bilirubin is discussed as"active oxygen trap"in mammatians.
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