Fig. 4

Apoptosis and proliferation of CD4 SCIC in the moderate and severe group. DA rats immunized with SCH were sacrificed on days 24–28 p.i. SCIC were isolated and percentage (A–F) and cell number (G–J) of cell populations were determined by flow cytometry. Data are expressed as mean ± SD (n = 4–6, from 2–3 independent experiments). *p < 0.05, ns—not significant