[Ability of catechin to eliminate O2-* and *OH].
OBJECTIVE
To investigate the eliminating ability of catechin to eliminate O2-* and *OH.


METHODS
The ability of catechin to clear away O2-* and *OH was respectively measured by faintness chemiluminescence and spin trapping assay.


RESULTS
IC50 that catechin eliminated O2-* and *OH was 6.16, 0.59 g/mL respectively, and the eliminating ability of catechin was much stronger than that of the extract from liquorice, rosemary, grape pip, giant knotweed and ginkgo leaf.


CONCLUSIONS
Compared with several important natural plants of antioxidants, the eliminating ability of cathechin is the best.
Laboratory of Pediatric Nephrology, Institute of Pediatrics, Second Xiangya Hospital, Central South University, Hunan Clinic Center of Pediatric Nephrology, Changsha. hexj7150@163.com
Xiao-jie
XJ
He
Zhu-wen
ZW
Yi
Yun
Y
Tian
Xiang-yang
XY
Lu
Xi-qiang
XQ
Dang
Shuang-hong
SH
Mo
Hua-bing
HB
Yang
D000975:Antioxidants / Q000494:pharmacology; D002392:Catechin / Q000494:pharmacology*; D016166:Free Radical Scavengers / Q000494:pharmacology*; D017665:Hydroxyl Radical / Q000378:metabolism; D008163:Luminescent Measurements; D013481:Superoxides / Q000378:metabolism
D000975:Antioxidants; D016166:Free Radical Scavengers; D013481:Superoxides; D017665:Hydroxyl Radical; D002392:Catechin