Recent Developments in Neurodegeneration discusses the diverse functions of nitric oxide regarding redox regulation, the cellular energy pool, modifications in genetic material, neurogenesis, the effects on protein degradation mechanisms and functional consociation with glial cells. The authors consider the latest evidence that demonstrates that Alzheimer's disease-associated proteins and their genes play a key role in the post-ischemic development of neurodegeneration with dementia. The main processes associated with secondary tissue damage following traumatic injury to the nervous system are reviewed. In closing, a comprehensive investigation of the combination of tremor and olfactory perception characteristics among patients with Parkinson's disease and essential tremor is presented.