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J Int Med Res. 2014 Feb;42(1):153-63. doi: 10.1177/0300060513504702.

RNA granule component TDRD7 gene polymorphisms in a Han Chinese population with age-related cataract.

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  • 1Department of Ophthalmology, Research Institute of Field Surgery, Da Ping Hospital, Third Military Medical University, Chongqing, China.



To examine whether polymorphisms in the RNA granule component tudor domain-containing protein 7 (TDRD7) gene are associated with susceptibility to age-related cataract (ARC) in a Han Chinese population.


Patients with ARC, and age-, sex- and ethnically-matched healthy control subjects were enrolled in the study. Five single nucleotide polymorphisms (SNPs) within the TDRD7 gene, rs1462091, rs11793735, rs10981985, rs2045732 and rs1462089, were genotyped using a SNaPshot® Multiplex Kit.


The study included 271 control subjects and 218 patients with ARC. The rs10981985 SNP was associated with ARC in dominant (odds ratio [OR] 0.561, 95% confidence interval [CI] 0.388, 0.809) and allele dose (OR 0.619, 95% CI 0.455, 0.841) genetic models. The rs10981985 A allele frequency was lower in patients with cortical ARC than in control subjects (OR 0.502, 95% CI 0.315, 0.801). The rs10981985 polymorphism was significantly associated with cortical ARC in a dominant genetic model (OR 0.431, 95% CI 0.251, 0.740).


The present study suggests that the rs10981985 G → A variant within the TDRD7 gene may protect against cortical ARC in a Han Chinese population.


Age-related cataract; RNA granules; single nucleotide polymorphism; tudor domain-containing protein 7

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