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TRPA1 Gene Polymorphisms and Childhood Asthma

Abstract

Background: Animal data have suggested that the transient receptor potential ankyrin-1 (TRPA1) ion channel plays a key role in promoting airway inflammation in asthma and may mediate effects of paracetamol on asthma, yet confirmatory human data are lacking. To study associations of TRPA1 gene variants with childhood asthma and total IgE concentration, and interactions between TRPA1 and prenatal paracetamol exposure on these outcomes.

Methods: We analysed associations between 31 TRPA1 single nucleotide polymorphisms (SNPs) and current doctor-diagnosed asthma and total IgE concentration at 7.5 years in the Avon Longitudinal Study of Parents and Children (ALSPAC) birth cohort. We sought to confirm the most significant associations with comparable outcomes in the Prevention and Incidence of Asthma and Mite Allergy (PIAMA) and Generation R birth cohorts. In ALSPAC, we explored interactions with prenatal paracetamol exposure.

Results: In ALSPAC, there was strong evidence for association between six SNPs and asthma: rs959974 and rs1384001 (per-allele odds ratio for both: 1.30 (95% CI: 1.15-1.47), p = 0.00001), rs7010969 (OR 1.28 (1.13-1.46), p = 0.00004), rs3735945 (OR 1.30 (1.09-1.55), p = 0.003), rs920829 (OR 1.30 (1.09-1.54), p = 0.004) and rs4738202 (OR 1.22 (1.07-1.39), p = 0.004). In a meta-analysis across the three cohorts, the pooled effect estimates confirmed that all six SNPs were significantly associated with asthma. In ALSPAC, TRPA1 associations with asthma were not modified by prenatal paracetamol, although associations with IgE concentration were.

Conclusion: This study suggests that TRPA1 may play a role in the development of childhood asthma. (249 words).

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References
1.
Bessac B, Sivula M, von Hehn C, Escalera J, Cohn L, Jordt S . TRPA1 is a major oxidant sensor in murine airway sensory neurons. J Clin Invest. 2008; 118(5):1899-910. PMC: 2289796. DOI: 10.1172/JCI34192. View

2.
Andre E, Campi B, Materazzi S, Trevisani M, Amadesi S, Massi D . Cigarette smoke-induced neurogenic inflammation is mediated by alpha,beta-unsaturated aldehydes and the TRPA1 receptor in rodents. J Clin Invest. 2008; 118(7):2574-82. PMC: 2430498. DOI: 10.1172/JCI34886. View

3.
Barnes P . Reactive oxygen species and airway inflammation. Free Radic Biol Med. 1990; 9(3):235-43. DOI: 10.1016/0891-5849(90)90034-g. View

4.
Belvisi M, Dubuis E, Birrell M . Transient receptor potential A1 channels: insights into cough and airway inflammatory disease. Chest. 2011; 140(4):1040-1047. PMC: 3186687. DOI: 10.1378/chest.10-3327. View

5.
Doehring A, Kusener N, Fluhr K, Neddermeyer T, Schneider G, Lotsch J . Effect sizes in experimental pain produced by gender, genetic variants and sensitization procedures. PLoS One. 2011; 6(3):e17724. PMC: 3053372. DOI: 10.1371/journal.pone.0017724. View