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Inherited Congenital Cataract: A Guide to Suspect the Genetic Etiology in the Cataract Genesis.


ABSTRACT: Cataracts are the principal cause of treatable blindness worldwide. Inherited congenital cataract (CC) shows all types of inheritance patterns in a syndromic and nonsyndromic form. There are more than 100 genes associated with cataract with a predominance of autosomal dominant inheritance. A cataract is defined as an opacity of the lens producing a variation of the refractive index of the lens. This variation derives from modifications in the lens structure resulting in light scattering, frequently a consequence of a significant concentration of high-molecular-weight protein aggregates. The aim of this review is to introduce a guide to identify the gene involved in inherited CC. Due to the manifold clinical and genetic heterogeneity, we discarded the cataract phenotype as a cardinal sign; a 4-group classification with the genes implicated in inherited CC is proposed. We consider that this classification will assist in identifying the probable gene involved in inherited CC.

SUBMITTER: Messina-Baas O 

PROVIDER: S-EPMC5465711 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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Inherited Congenital Cataract: A Guide to Suspect the Genetic Etiology in the Cataract Genesis.

Messina-Baas Olga O   Cuevas-Covarrubias Sergio A SA  

Molecular syndromology 20170207 2


Cataracts are the principal cause of treatable blindness worldwide. Inherited congenital cataract (CC) shows all types of inheritance patterns in a syndromic and nonsyndromic form. There are more than 100 genes associated with cataract with a predominance of autosomal dominant inheritance. A cataract is defined as an opacity of the lens producing a variation of the refractive index of the lens. This variation derives from modifications in the lens structure resulting in light scattering, frequen  ...[more]

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