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. 2012;7(6):e39247.
doi: 10.1371/journal.pone.0039247. Epub 2012 Jun 19.

Polymorphisms in RYBP and AOAH genes are associated with chronic rhinosinusitis in a Chinese population: a replication study

Yuan Zhang  1 , Leandra Mfuna Endam, Abdelali Filali-Mouhim, Liping Zhao, Martin Desrosiers, Demin Han, Luo Zhang
Affiliations

Polymorphisms in RYBP and AOAH genes are associated with chronic rhinosinusitis in a Chinese population: a replication study

Yuan Zhang et al. PLoS One. 2012.

Abstract

Background: The development of CRS is believed to be the result of combined interactions between the genetic background of the affected subject and environmental factors.

Objectives: To replicate and extend our recent findings from genetic association studies in chronic rhinosinusitis (CRS) performed in a Canadian Caucasian population in a Chinese population.

Methods: In a case-control replication study, DNA samples were obtained from CRS with (n = 306; CRSwNP) and without (n = 332; CRSsNP) nasal polyps, and controls (n = 315) in a Chinese population. A total of forty-nine single nucleotide polymorphisms (SNPs) selected from previous identified SNPs associated with CRS in Canadian population, and SNPs from the CHB HapMap dataset were individually genotyped.

Results: We identified two SNPs respectively in RYBP (rs4532099, p = 2.15E-06, OR = 2.59) and AOAH (rs4504543, p = 0.0001152, OR = 0.58) significantly associated with whole CRS cohort. Subgroup analysis for the presence of nasal polyps (CRSwNP and CRSsNP) displayed significant association in CRSwNP cohorts regarding to one SNP in RYBP (P = 3.24(E)-006, OR = 2.76). Evidence of association in the CRSsNP groups in terms of 2 SNPs (AOAH_rs4504543 and RYBP_rs4532099) was detected as well. Stratifying analysis by gender demonstrated that none of the selected SNPs were associated with CRSwNP as well as CRSsNP. Meanwhile 3 SNPs (IL1A_rs17561, P = 0.005778; IL1A_rs1800587, P = 0.009561; IRAK4_rs4251513, P = 0.03837) were associated with serum total IgE level.

Conclusions: These genes are biologically plausible, with roles in regulation of transcription (RYBP) and inflammatory response (AOAH). The present data suggests the potential common genetic basis in the development of CRS in Chinese and Caucasian population.

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Conflict of interest statement

Competing Interests: The authors declare that co-author Luo Zhang is a PLoS ONE Editorial Board member. This does not alter the authors’ adherence to all the PLoS ONE policies on sharing data and materials. All other authors declare that no competing interests exist.

Figures

Figure 1
Figure 1. Linkage Dysequilibrium (LD) plot for IRAK4.
The LD plots were generated by Haploview 4.1. The white horizontal bar below the info track illustrates the location of SNPs on a physical scale. The shade of squares illustrates the strength of pairwise r2 values on a black and white scale where black indicates perfect LD (r2 = 1.00) and white indicates perfect equilibrium (r2 = 0). The r2 LD value is also indicated within each square. Failed SNP and SNPs not in Hardy-Weinberg equilibrium or with low minor allele frequency are not illustrated.
See this image and copyright information in PMC

References

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