The responses of T cell subsets to ConA after different MMg pre-exposure time. After 0h, 8h, 16h and 24h MMg pre-exposure, the splenocytes were transferred to a static culture condition and stimulated by ConA for 24h and 72h respectively. A) Mean fluorescence intensity (MFI) for CD25, CD69 and CD71 staining was shown gated on CD4+ and CD8+ T cells respectively. B) Percentages of cells positive for CD25, CD69 and CD71 in CD4+ and CD8+ T cell populations after a 24h-ConA stimulation. C) The FACS profile analysis of proliferation of CD4+ and CD8+ T cells after a 72h-ConA stimulation was shown. D) The proportional changes of proliferated CD4+ and CD8+ T cells after a 72h-ConA stimulation. Data were represented as means±SD. *, p<0.05, **, p<0.01 and ***, p<0.001compared with the static control group (1g).