an increasing trendP<0.05
An increasing trend of T-AOC levels in the 400 mg/kg HSP group was observed compared with the negative control group and silica model group on the 28th day (P<0.05), while it was also increased in the PFD positive control group and 100 and 200 mg/kg HSP groups on the 28th day, but there was no statistical difference compared with the silica model group (P>0.05).