Journal
NEUROSCIENTIST
Volume 11, Issue 4, Pages 294-307Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/1073858404273850
Keywords
nitric oxide synthase; subventricular zone; dentate gyrus; angiogenesis; epidermal growth factor receptor; vascular endothelial growth factor
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Adult neurogenesis may be functionally important as a mechanism of brain plasticity in physiological conditions and brain repair after injury. Nitric oxide (NO), a diffusible intracellular and intercellular messenger in the mammalian nervous system, has been shown to affect adult neurogenesis in different ways. In the normal brain, NO, synthesized by the neuronal isoform of NO synthase in nitrergic neurons, is a negative regulator of precursor cell proliferation. However, after brain damage, NO overproduction in different neural and nonneural cell types promotes neurogenesis. Recently reported results on the effects of NO on new neuron generation in the adult brain are reviewed, with special attention to the proposed mechanisms of action and functional consequences in health and disease.
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