xanthine(Xan)
1.PEROXIDATION EFFECTS ON LIPOSOME OF ACTIVE OXYGEN SPECIES PRODUCED BY THE SYSTEM OF ADP-FeCl_3-XANTHINE-XANTHINE OXIDASE
2.METHODS :①Studies on xanthine oxidase(XO) inhibitory activity of Qi salt in vitro ;
3.② Xan inhibited that RBC hemolysis and the generation of MDA was decreased.
6.Determination of hypoxanthine and xanthine in fish by the coupled reaction of enzyme (fluorometric method)
7.Objective: To study the protective effects of xanthones:1,8 dihydroxy 3,5 dimethoxyxanthone(Xan Ⅰ),1 hydroxy 3,5 dimethoxyxanthone(Xan Ⅱ) and 1 hydroxy 3,7,8 trimethoxyxanthone(Xan Ⅲ) from Canscora lucidissima on ischemic reperfusion injury exacerbated by FeSO 4/Ascorbic acid free radical generating system.
8.ESR spectrum of hypoxanthine-xanthine oxidase and Fe ++ —H 2O 2 system were significantly reduced or disappear by NADH.
9.Objective To explore the effect of propofol on xanthine oxidase(XO) activity during hepatic ischemia-reperfusion injury (HIRI).
10.Superoxide dismutase (SOD), xan thine oxidase (XOD), glutathione perioxidase (GSH-PX), and malondialdehyde (MDA) were determined using colo rimetric method.

