Investigation of an inducible nitric oxide synthase gene (NOS2A) polymorphism in a multiple sclerosis population

Lotti Tajouri, Virginie Martin, Micky Ovcaric, Rob P. Curtain, Rod A. Lea, Peter A Csurhes, Michael P. Pender, Lyn R. Griffiths

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Abstract

Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS) affecting most commonly the Caucasian population. Nitric oxide (NO) is a biological signaling and effector molecule and is especially important during inflammation. Inducible nitric oxide synthase (iNOS) is one of the three enzymes responsible for generating NO. It has been reported that there is an excessive production of NO in MS concordant with an increased expression of iNOS in MS lesions. This study investigated the role of a bi-allelic tetranucleotide polymorphism located in the promoter region of the human iNOS (NOS2A) gene in MS susceptibility. A group of MS patients (n = 101) were genotyped and compared to an age- and sex-matched group of healthy controls (n = 101). The MS group was subdivided into three subtypes, namely relapsing-remitting MS (RR-MS), secondary-progressive MS (SP-MS) and primary-progressive MS (PP-MS). Results of a chi-squared analysis and a Fisher's exact test revealed that allele and genotype distributions between cases and controls were not significantly different for the total population (χ2 = 3.4, Pgenotype = 0.15; χ2 = 3.4, Pallele = 0.082) and for each subtype of MS (P > 0.05). This suggests that there is no direct association of this iNOS gene variant with MS susceptibility.

Original languageEnglish
Pages (from-to)9-13
Number of pages5
JournalBrain Research Bulletin
Volume64
Issue number1
DOIs
Publication statusPublished - 30 Jul 2004
Externally publishedYes

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Nitric Oxide Synthase Type II
Multiple Sclerosis
Population
Genes
Chronic Progressive Multiple Sclerosis
Nitric Oxide
Relapsing-Remitting Multiple Sclerosis
Genetic Promoter Regions
Chronic Disease
Research Design
Central Nervous System
Alleles
Genotype
Inflammation
Enzymes

Cite this

Tajouri, Lotti ; Martin, Virginie ; Ovcaric, Micky ; Curtain, Rob P. ; Lea, Rod A. ; Csurhes, Peter A ; Pender, Michael P. ; Griffiths, Lyn R. / Investigation of an inducible nitric oxide synthase gene (NOS2A) polymorphism in a multiple sclerosis population. In: Brain Research Bulletin. 2004 ; Vol. 64, No. 1. pp. 9-13.
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Investigation of an inducible nitric oxide synthase gene (NOS2A) polymorphism in a multiple sclerosis population. / Tajouri, Lotti; Martin, Virginie; Ovcaric, Micky; Curtain, Rob P.; Lea, Rod A.; Csurhes, Peter A; Pender, Michael P.; Griffiths, Lyn R.

In: Brain Research Bulletin, Vol. 64, No. 1, 30.07.2004, p. 9-13.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Tajouri, Lotti

AU - Martin, Virginie

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AU - Curtain, Rob P.

AU - Lea, Rod A.

AU - Csurhes, Peter A

AU - Pender, Michael P.

AU - Griffiths, Lyn R.

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