Fig. 6

Microglial phenotypic characteristics after SAH induction. a M1/M2 Markers of activated microglia increased over time after SAH. b Time course changes of mRNA expressions at 6 h, 24 h, 48 h, and 72 h for proinflammatory cytokines (TNF-α, IL-1β, IL-6) and anti-inflammatory cytokines (IL-4, IL-10, TGF-β) after SAH. Samples for PCR experiment sorted from left temporal brain lysates. Quantifications are expressed as the fold change compared to the sham group. n = 5 in each group. *P < 0.05 and **P < 0.01 vs. sham group. Ctr represents sham group