Figure 1: Serum interleukin (IL)-1β and IL-10 levels. Values obtained from rats treated daily with MSG (3 g/kg body weight) for 8 weeks; with some rats,there was a 4-weeks recovery period. Data are expressed as mean ± SD of 10 rats/group. aValue significantly different from control group at p < 0.0001 and bsignificantly different from MSG group at p < 0.0001.