the old sod
3.Methods 200 and 400 mg/kg of CPFG were given to the old rats every day for thirty days. The content of malon dialdehyde(MDA) in serum, the contents of lipofuscin(Lf) in brain and liver, the content of hydrooxyproline(Hyp) in skin and liver and the activity of superoxide dismutase(SOD), catalase(CAT) and glutathione peroxidase(GSH Px) in serum were examined.
5.Methods Sprague Dawley (SD) old aged rats were divided randomly into 4 groups including one control group and three experimental groups. The experimental groups were given the health foods for 30 days, and the content of malonaldehyde (MDA) and the activity of superoxide dismutase (SOD) were detected.

