J Korean Med Sci.  2006 Oct;21(5):922-926. 10.3346/jkms.2006.21.5.922.

Endothelial Nitric Oxide Gene T-786C Polymorphism and Subarachnoid Hemorrhage in Korean Population

• Song MK
• Kim MK
• Kim TS
• Joo SP
• Park MS
• Kim BC
• Cho KH

• KMID: 1781916
• DOI: http://doi.org/10.3346/jkms.2006.21.5.922

Abstract

We aimed to elucidate whether the eNOS T-786C mutant allele is implicated in subarachnoid hemorrhage (SAH) susceptibility or vasospasm after SAH, and whether the mutant allele is differentially expressed in those with small and large ruptured aneurysms in Korean population. 136 consecutive patients diagnosed with aneurismal SAH and 113 controls were recruited. Polymerase chain reaction and direct sequencing of both strands were performed to determine genotypes with respect to the eNOS T-786C mutation. No significant difference was found between cases and controls with respect to the distributions of the two eNOS T-786C single nucleotide polymorphism (SNP) genotypes. No significant differences in the distributions of the eNOS T-786C SNP genotypes were found with regard to the sizes of ruptured aneurysms or the occurrence of vasospasm after SAH. Multiple logistic regression analysis after controlling for age and sex showed the eNOS T-786C SNP T/C geno-type was independently associated with an unfavorable outcome (GOS grade 3-5) of SAH (Exp (beta)=4.27, 95% CI 1.131-16.108, p=0.032). In conclusion, the eNOS T-786C mutation was not found to be associated with either a susceptibility to SAH or vasospasm after SAH, or with aneurysm size in Korean population. The eNOS T-786C SNP T/C genotype could be used as a prognostic marker in individuals with SAH.

Keyword

Aneurysm; Subarachnoid Hemorrhage; Nitric Oxide Synthase; Nitricoxyde Synthase Type III; eNOS; Polymorphism, Genetic

MeSH Terms

Subarachnoid Hemorrhage/*genetics
*Polymorphism, Single Nucleotide
Nitric Oxide Synthase Type III/*genetics
Middle Aged
Male
Logistic Models
Humans
Genetic Predisposition to Disease
Female
Aged
Adult

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