Effects of nitric oxide synthase inhibition on cerebral blood flow following bilateral carotid artery occlusion and recirculation in the rat

Ricardo Prado, Brant D. Watson, Per Wester

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

The effects of bilateral carotid artery occlusion/recirculation on cortical CBF (cCBF) were studied in rats following the intravenous administration of either the nitric oxide synthase inhibitor NG-nitro-L-arginine methyl ester hydrochloride (L-NAME; 30 mg/kg) or an equivalent volume of saline (500 μ1). Induction of bilateral carotid occlusion (BCO) in L-NAME-treated animals resulted in a reduction of cCBF to 30% of baseline. During recirculation subsequent to 20 min of BCO, cCBF in L-NAME-infused animals remained at 30% of baseline. In contrast, cCBF in saline-treated control animals returned to the original baseline level following a similar reduction to 30-40% of baseline during BCO. These results indicate that inhibition of nitric oxide generation limits normalization of regional cortical perfusion following occlusion of proximal large cerebral vessels.

Original languageEnglish
Pages (from-to)720-723
Number of pages4
JournalJournal of Cerebral Blood Flow and Metabolism
Volume13
Issue number4
StatePublished - Dec 1 1993
Externally publishedYes

Fingerprint

Cerebrovascular Circulation
NG-Nitroarginine Methyl Ester
Carotid Arteries
Nitric Oxide Synthase
L 30
Intravenous Administration
Nitric Oxide
Perfusion

Keywords

  • Cerebral blood flow
  • Cerebral ischemia
  • Endothelium-derived relaxing factor
  • Nitric oxide synthase inhibitor

ASJC Scopus subject areas

  • Endocrinology
  • Endocrinology, Diabetes and Metabolism
  • Neuroscience(all)

Cite this

Effects of nitric oxide synthase inhibition on cerebral blood flow following bilateral carotid artery occlusion and recirculation in the rat. / Prado, Ricardo; Watson, Brant D.; Wester, Per.

In: Journal of Cerebral Blood Flow and Metabolism, Vol. 13, No. 4, 01.12.1993, p. 720-723.

Research output: Contribution to journalArticle

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