Figure 5. AVE0991 elevates microglial M2 activation makers in the brains of SAMP8 mice. Eight-month-old SAMP8 mice were injected intraperitoneally with vehicle or AVE0991 (1, 3 or 10 mg/kg/day) for 30 days. Afterwards, mice were sacrificed for analysis. (A) The mRNA levels of Arg1 in the brains were investigated by qRT-PCR. (B) The mRNA levels of Il10 in the brains were investigated by qRT-PCR. (C) The mRNA levels of Retnla in the brains were investigated by qRT-PCR. Gapdh was used as an internal control, and data were expressed as a fold change relative to non-treated SAMP8 mice. All data were analyzed by one-way ANOVA followed by Tukey’s post hoc test. Columns represent mean ± SD (n=8 per group). #P<0.05 versus vehicle-treated SAMP8 mice.