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Associations between CRYBA4 gene variants and high myopia in a Japanese population.


ABSTRACT: Purpose:The crystallin beta A4 (CRYBA4) gene variant, rs2009066, was previously reported to be associated with high myopia in a southern Chinese population. In the present study, we investigated whether CRYBA4 variants were associated with high myopia in a Japanese population. Methods:We recruited 1,063 Japanese patients with high myopia (spherical equivalent [SE] ?-9.00 D in both eyes) and 1,009 healthy Japanese subjects (SE >-1.00 D). We genotyped rs2009066 and three tagging single-nucleotide polymorphisms (SNPs), rs16982456, rs2071861, and rs4276, in the CRYBA4 region. Results:We did not find any significant association between these four SNPs and high myopia in an allele analysis. However, rs2009066 and rs2071861, which were in strong linkage disequilibrium (LD; r2=0.86), showed a marginal association with high myopia in the recessive genotype model of risk alleles (rs2009066 G allele: P=0.032, odds ratio [OR] =1.31; rs2071861 A allele: P=0.037, OR =1.31). Nevertheless, this association became insignificant after correcting for multiple testing (Pc >0.05). Conclusion:This study showed no significant association between CRYBA4 variants and high myopia in a Japanese population. Our findings did not correspond with a previous study. Further genetic studies with other populations are needed to elucidate a potential contribution of the CRYBA4 region in the development of high myopia.

SUBMITTER: Kawagoe T 

PROVIDER: S-EPMC5724408 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Associations between <i>CRYBA4</i> gene variants and high myopia in a Japanese population.

Kawagoe Tatsukata T   Ota Masao M   Meguro Akira A   Takeuchi Masaki M   Yamane Takahiro T   Shimazaki Haruna H   Takeuchi Masaru M   Okada Eiichi E   Teshigawara Takeshi T   Mizuki Nobuhisa N  

Clinical ophthalmology (Auckland, N.Z.) 20171207


<h4>Purpose</h4>The crystallin beta A4 (<i>CRYBA4</i>) gene variant, rs2009066, was previously reported to be associated with high myopia in a southern Chinese population. In the present study, we investigated whether <i>CRYBA4</i> variants were associated with high myopia in a Japanese population.<h4>Methods</h4>We recruited 1,063 Japanese patients with high myopia (spherical equivalent [SE] ≤-9.00 D in both eyes) and 1,009 healthy Japanese subjects (SE >-1.00 D). We genotyped rs2009066 and thr  ...[more]

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