The role of NOS in the impairment of spatial memory and damaged neurons in rats injected with amyloid beta 25-35 into the temporal cortex

► The inhibitors of NOS decrease the nitrotyrosine patterns in the TCx and the Hp. ► The nNOS inhibition did not block the toxicity of Aβ(25-35) on the cognitive process. ► The increase of iNOS is related with the neuronal loss leading to the memory deficits.