Endothelial nitric oxide synthase gene polymorphisms predict susceptibility to aneurysmal subarachnoid hemorrhage and cerebral vasospasm

Vini G. Khurana, Youvraj R. Sohni, Wells I. Mangrum, Robyn L. McClelland, Dennis J. O'Kane, Fredric B. Meyer, Irene Meissner

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

Rupture of an intracranial aneurysm (subarachnoid hemorrhage) is a potentially devastating condition frequently complicated by delayed cerebral ischemia from sustained contraction of intracranial arteries (cerebral vasospasm). There is mounting evidence linking the formation of intracranial aneurysms and the pathogenesis of post-subarachnoid hemorrhage vasospasm to aberrant bioavailability and action of the vasodilator molecule nitric oxide generated by isoforms of nitric oxide synthase. In humans, the gene encoding the endothelial isoform of nitric oxide synthase (eNOS) is known to be polymorphic, with certain polymorphisms associated with increased cardiovascular disease susceptibility. In this prospective clinical study involving 141 participants, we used gene microarray technology to demonstrate that the eNOS gene intron-4 27-base pair variable number tandem repeat polymorphism (eNOS 27 VNTR) predicts susceptibility to intracranial aneurysm rupture, while the eNOS gene promoter T-786C single nucleotide polymorphism (eNOS T-786C SNP) predicts susceptibility to post-subarachnoid hemorrhage vasospasm. We believe that genetic information such as this, which can be obtained expeditiously at the time of diagnosis, may be used as a helpful adjunct to other clinical information aimed at predicting and favorably modifying the clinical course of persons with intracranial aneurysms.

Original languageEnglish (US)
Pages (from-to)291-297
Number of pages7
JournalJournal of Cerebral Blood Flow and Metabolism
Volume24
Issue number3
StatePublished - Mar 2004

Fingerprint

Intracranial Vasospasm
Nitric Oxide Synthase Type III
Subarachnoid Hemorrhage
Intracranial Aneurysm
Protein Isoforms
Genes
Single Nucleotide Polymorphism
Rupture
Minisatellite Repeats
Disease Susceptibility
Brain Ischemia
Vasodilator Agents
Nitric Oxide Synthase
Base Pairing
Introns
Biological Availability
Nitric Oxide
Cardiovascular Diseases
Arteries
Prospective Studies

Keywords

  • Cerebral vasospasm
  • Genetic polymorphism
  • Intracranial aneurysm
  • Nitric oxide synthase
  • Subarachnoid hemorrhage

ASJC Scopus subject areas

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

Cite this

Endothelial nitric oxide synthase gene polymorphisms predict susceptibility to aneurysmal subarachnoid hemorrhage and cerebral vasospasm. / Khurana, Vini G.; Sohni, Youvraj R.; Mangrum, Wells I.; McClelland, Robyn L.; O'Kane, Dennis J.; Meyer, Fredric B.; Meissner, Irene.

In: Journal of Cerebral Blood Flow and Metabolism, Vol. 24, No. 3, 03.2004, p. 291-297.

Research output: Contribution to journalArticle

Khurana, Vini G. ; Sohni, Youvraj R. ; Mangrum, Wells I. ; McClelland, Robyn L. ; O'Kane, Dennis J. ; Meyer, Fredric B. ; Meissner, Irene. / Endothelial nitric oxide synthase gene polymorphisms predict susceptibility to aneurysmal subarachnoid hemorrhage and cerebral vasospasm. In: Journal of Cerebral Blood Flow and Metabolism. 2004 ; Vol. 24, No. 3. pp. 291-297.
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