Research Article

Disruption of Nrf2 Enhances Upregulation of Nuclear Factor- B Activity, Proinflammatory Cytokines, and Intercellular Adhesion Molecule-1 in the Brain after Traumatic Brain Injury

Figure 4

Expression of ICAM-1 in the cortex of sham and injured Nrf2 (+/+) and Nrf2 (−/−) mice. Immunohistochemical staining for ICAM-1 was performed in the cortex tissue sections of Nrf2 (+/+) and Nrf2 (−/−) mice 24 hours after TBI. (a), (c) Sham-operated Nrf2 (+/+) and Nrf2 (−/−) mice showing few ICAM-1-immunostained cerebral microvessels. (b) Injured Nrf2 (+/+) mice showing increased number of ICAM-1 positive vessels. (d) Injured Nrf2 (−/−) mice showing larger increment in the number of ICAM-1 positive vessels compared with injured Nrf2 (+/+) mice. (e) Quantitative analysis showed that the number of ICAM-1 positive vessels in brain was significantly increased after TBI and was greater in Nrf2 (−/−) mice than in Nrf2 (+/+) mice. Data represents mean ± SEM ( per group). ** versus sham control of the same genotype. # versus injured wild-type mice.
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