Background:
Fraxin isolated from Acer tegmentosum, F. ornus or A. hippocastanum, is a glucoside of fraxetin and reported to exert potent anti-oxidative stress action[1], anti-inflammatory and antimetastatic properties. Fraxin shows its antioxidative effect through inhibition of cyclo AMP phosphodiesterase enzyme[2].
Fraxin (100 μM) is non-cytotoxic on Hep G2 cells. Fraxin at non-cytotoxic concentrations significantly decreases the t-BHP-induced ROS generation in a dose-dependent manner[1].Fraxin (0.5 mM) shows free radical scavenging effect at high concentration and cell protective effect against H2O2-mediated oxidative stress[2].
Fraxin (50 mg/kg, p.o.) significantly blocks the CCl4-induced elevation of ALT and AST. Fraxin (10 and 50 mg/kg, p.o.) significantly reduces the GSSG levels (1.7±0.3 and 1.5±0.2 nM/g liver, respectively) compared with the GSSG levels of the CCl4-treated group[1].
参考文献:
[1]. Fraxin (50 mg/kg, p.o.) significantly blocks the CCl4-induced elevation of ALT and AST. Fraxin (10 and 50 mg/kg, p.o.) significantly reduces the GSSG levels (1.7±0.3 and 1.5±0.2 nM/g liver, respectively) compared with the GSSG levels of the CCl4-treated group[1].
[2]. Whang WK, et al. Natural compounds,fraxin and chemicals structurally related to fraxin protect cells from oxidative stress. Exp Mol Med. 2005 Oct 31;37(5):436-46.
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