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Nitric oxide: a new messenger in the brain
J Bruhwyler1, E Chleide, J F Liégeois
1Department of Psychopharmacology, Faculty of Medicine, University of Namur, Belgium.
Neuroscience and Biobehavioral Reviews
|January 1, 1993
Summary
Nitric oxide (NO) plays a crucial role in the central nervous system, impacting both normal functions like memory and disease states such as Alzheimer's. This review integrates recent findings on NO's diverse functions in the brain.
Area of Science:
- Neuroscience
- Neurochemistry
Background:
- Nitric oxide (NO) is increasingly recognized for its significant roles within the central nervous system.
- NO is produced by multiple sources, including cerebral vasculature endothelium, microglia, astrocytes, and glutamatergic neurons.
Purpose of the Study:
- To review and synthesize recent advancements in understanding the multifaceted roles of nitric oxide in the brain.
- To integrate current knowledge on NO's involvement in both physiological and pathological processes within the central nervous system.
Main Methods:
- Literature review and synthesis of recent scientific publications.
- Integration of data from studies investigating nitric oxide's functions in the brain.
Main Results:
- Nitric oxide is implicated in numerous central nervous system pathologies, including neurotoxicity in Alzheimer's and Huntington's diseases, cerebral ischemia, stroke, and anxiety.
- NO also mediates essential physiological functions such as memory, learning, cerebrovascular regulation, wakefulness modulation, nociception, olfaction, and feeding behaviors.
- Regulation of neurotransmitter release, including noradrenaline and dopamine, is influenced by NO.
Conclusions:
- Nitric oxide is a key signaling molecule in the brain with diverse and critical functions.
- Further research into NO's mechanisms can provide insights into neurological disorders and cognitive processes.