European journal of ophthalmology · 2020
A novel CRYBB2 mutation causes autosomal dominant cataract: A report from a Chinese family.
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Xu Li Juan, Lv Zhi Gang, Liu Ying, Zhang Xiang Xiang, Cui Yu Xin, Li Xiao Chun, Zhu Yi Jun, He Jie
Аннотация
PURPOSE: This study aimed to examine pathogenic mutation within one Chinese family of five-generations suffering from autosomal dominant cataract.
METHODS: Next-generation sequencing and Sanger sequencing were used to find the pathogenic variants.
RESULTS: A rare mutation, c.563G > A, in CRYBB2 gene was found in the proband that showed symptom of non-syndromic congenital autosomal dominant cataract. This mutation had been found in all affected individuals and in one healthy infant, but it did not exist between two individuals who did not develop such disease in that family, as well as in 100 healthy subjects who showed no relation with that family. Cataracts in this family varied with different severity of lens opacities and elongation of axial length.
CONCLUSION: One missense mutation c.563G > A is reported in the CRYBB2 gene among one Chinese family suffering from early-onset cataract, and associated novel phenotypes are the elongation of axial length and the types of cataract. Our results expand the spectrum of associated phenotypes of CRYBB2 mutation.
METHODS: Next-generation sequencing and Sanger sequencing were used to find the pathogenic variants.
RESULTS: A rare mutation, c.563G > A, in CRYBB2 gene was found in the proband that showed symptom of non-syndromic congenital autosomal dominant cataract. This mutation had been found in all affected individuals and in one healthy infant, but it did not exist between two individuals who did not develop such disease in that family, as well as in 100 healthy subjects who showed no relation with that family. Cataracts in this family varied with different severity of lens opacities and elongation of axial length.
CONCLUSION: One missense mutation c.563G > A is reported in the CRYBB2 gene among one Chinese family suffering from early-onset cataract, and associated novel phenotypes are the elongation of axial length and the types of cataract. Our results expand the spectrum of associated phenotypes of CRYBB2 mutation.