Table 3.

Hepatic activities of glutathione (GSH) metabolic enzymes in rats

Group	GSH-Px (U/mg prot)	GST (U/mg prot)	GR (U/g prot)	GCL (U/mg prot)
Control	847.38 ± 54.05	100.79 ± 6.72	37.91 ± 12.13	0.28 ± 0.05
0.5%Q	886.10 ± 72.40	122.25 ± 5.37*	22.84 ± 10.65	0.19 ± 0.02*

Values are presented as mean ± standard deviation (n = 10). *p<0.05, compared with control. Hepatic activity of GST increased, while GCL decreased significantly after administration of 0.5% quercetin, and p value were 0.000 and 0.002 respectively. GSH-Px, glutathione peroxidase; GST, glutathione S-transferase; GR, glutathione reductase; GCL, glutamate cysteine ligase; 0.5%Q, 0.5% quercetin-supplemented group.