Fig. 6

IL-1ra concentrations obtained in culture media of the synovial membrane explant groups at 48 (a) and 96 h (b). ^a-b Lowercase letters denote significant (p < 0.01) differences between groups in the same column by Tukey test. a Significantly different with a: all groups. b: all groups. b Significantly different with a: all groups. *Denote significant differences (p < 0.01) between the same variable at 1 h and 48 h and at 49 h and 96 by t-paired test. Data are presented as means (m.s.e)