NOS2 and Cognitive impairment: Rat (20.71, 1.0E-4); reoxygenation-induced cognitive deficit (20.71, 1.0E-4); induction (20.71, 1.0E-4); cerebral cortex microglia (20.71, 1.0E-4); inducible nitric oxide synthase (20.71, 1.0E-4)