glutathione peroxidase activity was significantly lower ( p less than 0.05 ) in rats fed 4 and 7.5 % protein compared with rats fed 15 and 45 % protein , whereas the activity of glutathione reductase was higher in rats fed 4 and 7.5 % protein then in rats fed 15 or 45 % protein .
C0034693
rats
C1335665
protein