Physiological and pathophysiological roles of nitric oxide in the central nervous system

Research output: Contribution to journalArticle

288 Citations (Scopus)

Abstract

Nitric oxide (NO) is produced by three distinct isoforms of nitric oxide synthases in the central nervous system. Here, the roles of nitric oxide in the central nervous system are reviewed under physiological and pathophysiological conditions. Under physiological conditions, NO plays a role in the regulation of cerebral blood flow and autoregulation, blood flowmetabolism coupling, neurotransmission, memory formation, modulation of neuroendocrine functions, and behavioral activity. Impairment of the NO- mediated cerebrovascular vasodilatation occurs during ischemia-reperfusion, diabetes, hypertension, subarachnoid hemorrhage, and various forms of shock. Enhancement of NO production in the brain occurs during stoke, seizures, and acute and chronic inflammatory and neurodegenerative disorders. The alterations of the expression of the various isoforms of nitric oxide synthases under the above conditions are discussed. Moreover, the molecular mechanisms of NO and peroxynitrite induced cellular injury are delineated. Finally, the current strategies available for selective pharmacological manipulation of individual nitric oxide synthase isoforms are discussed.

Original languageEnglish (US)
Pages (from-to)131-141
Number of pages11
JournalBrain Research Bulletin
Volume41
Issue number3
DOIs
StatePublished - 1996
Externally publishedYes

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Nitric Oxide
Central Nervous System
Nitric Oxide Synthase
Protein Isoforms
Cerebrovascular Circulation
Peroxynitrous Acid
Subarachnoid Hemorrhage
Vasodilation
Synaptic Transmission
Neurodegenerative Diseases
Reperfusion
Shock
Seizures
Homeostasis
Ischemia
Pharmacology
Hypertension
Wounds and Injuries
Brain

Keywords

  • Autoregulation
  • Blood flow
  • Cereb rovascular
  • Cerebral
  • Encephalitis
  • Inflammation
  • Neurodegeneration
  • Nitric oxide
  • Peroxynitrite
  • Shock
  • Stroke
  • Superoxide

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Physiological and pathophysiological roles of nitric oxide in the central nervous system. / Szabo, Csaba.

In: Brain Research Bulletin, Vol. 41, No. 3, 1996, p. 131-141.

Research output: Contribution to journalArticle

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