Fig. 4.

The intracellular and extracellular protein expression of microglia after removal of IL-4 or IFN-γ intervention. A The intracellular protein expression (TGF-β, Arg-1 and iNOS) in IL-4- and IFN-γ-treated microglia at 0 h, 24 h and 48 h after removal of intervention. B The extracellular protein (IL-10, TGF-β, TNF-α and IL-1β) in IL-4- and IFN-γ-treated microglia at 0 h, 24 h and 48 h after removal of intervention. Data are showed Mean ± SEM, n = 4–6, *P < 0.05, **P < 0.01, ***P < 0.001 vs Ctrl group, ^#P < 0.05, ^##P < 0.01, ^###P < 0.001 vs IL-4 group