Fig. 4

PDNs inhibited microglia-induced inflammation after CI/R. a Representative FACS analysis of rat brain cell suspension. b Quantification of proportion of M1 and M2 microglia in rat brain 72 h post tMCAO. c Concentration of inflammatory cytokine TNF-α, IL-6 and IL-10 in brain tissue 72 h post tMCAO. Data was presented as mean ± SD (n = 3). *P < 0.05, **P < 0.01, ***P < 0.001