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Variants of NOS1, NOS2, and NOS3 genes in asthmatics.

Authors: Gao, PS  Kawada, H  Kasamatsu, T  Mao, XQ  Roberts, MH  Miyamoto, Y  Yoshimura, M  Saitoh, Y  Yasue, H  Nakao, K  Adra, CN  Kun, JF  Moro-oka, S  Inoko, H  Ho, LP  Shirakawa, T  Hopkin, JM 
Citation: Gao PS, etal., Biochem Biophys Res Commun. 2000 Jan 27;267(3):761-3.
Pubmed: (View Article at PubMed) PMID:10673365
DOI: Full-text: DOI:10.1006/bbrc.1999.2030

Nitric oxide (NO) gas concentrations are higher in expired air in asthmatics. NO is synthesized by three isoforms of NO synthase (NOS) encoded by three distinct genes, NOS1, NOS2, and NOS3. Genome-wide searches have identified linkages to asthma on chromosomes 7, 12, and 17 where these three genes are localized. No association study, however, has been reported to date. To test whether variants of NOS1, NOS2, and NOS3 relate to asthma, a genetic association study was conducted in a British population (n = 300). Intragenic microsatellite variants of NOS1 were significantly associated with asthma [odds ratio (OR) = 2.08, 95% CI: 1.20-3.57 (95% CI), P = 0.008 (Pc = 0.048)], but not with IgE levels. Neither NOS2 nor NOS3 variants showed any association with asthma nor IgE levels. These findings suggest that NOS1 variants may be a significant contributor to asthma in a British population.


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CRRD Object Information
CRRD ID: 5132869
Created: 2011-06-02
Species: All species
Last Modified: 2011-06-02
Status: ACTIVE


RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.