Figure 5From: CX3CR1 deficiency suppresses activation and neurotoxicity of microglia/macrophage in experimental ischemic stroke CX3CR1 deficiency attenuates reactive oxygen species generation in brain after middle cerebral artery occlusion. (A) Reactive oxygen species (ROS) were evaluated by Xenogen IVIS200 imager in wild-type (WT) and CX3CR1-/- mice in vivo. (B) Quantification of ROS. No difference in ROS levels were observed between the two groups 24 hours after MCAO. ROS level decreased in CX3CR1-/- mice 72 hours after MCAO compared to 24 hours (P < 0.0001 for genotype and time point, P = 0.0036 for interaction by two-way analysis of variance; **P < 0.01 by Bonferroni post-hoc tests) and is significantly less in CX3CR1-/- mice relative to WT mice (*P < 0.05 by Bonferroni post-hoc tests). n = 6 per group. p/s/cm2/sr, photons per second per centimeter squared per steradian. (C) Immunohistochemistry for 4-hydroxy-2-nonenal (4-HNE) and 8-hydroxy-2-deoxyguanosine (8-OHdG) in the ischemic lesion 24 and 72 hours after MCAO. (D) Reduction of the number of stained cells in the CX3CR1-/- mice compared with WT mice. P < 0.0001 for genotype, P = 0.0003 for oxidative marker, and P = 0.9827 for interaction by two-way analysis of variance. **P < 0.01 by Bonferroni post-hoc tests. n = 5 per group scale bars: 50 μm.Back to article page