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  • Title: Targeted next generation sequencing reveals genetic defects underlying inherited retinal disease in Iranian families.
    Author: Tayebi N, Akinrinade O, Khan MI, Hejazifar A, Dehghani A, Cremers FPM, Akhlaghi M.
    Journal: Mol Vis; 2019; 25():106-117. PubMed ID: 30820146.
    Abstract:
    PURPOSE: Inherited retinal diseases (IRDs) are clinically and genetically heterogeneous showing progressive retinal cell death which results in vision loss. IRDs include a wide spectrum of disorders, such as retinitis pigmentosa (RP), Leber congenital amaurosis (LCA), cone-rod dystrophy (CRD), and Stargardt disease (STGD1). METHODS: In this study, we performed targeted next-generation sequencing based on molecular inversion probes (MIPs) that allowed the sequence analysis of 108 IRD-associated genes in 50 Iranian IRD probands. RESULTS: The sequencing and variant filtering led to the identification of putative pathogenic variants in 36 out of 50 (72%) probands. Among 36 unique variants, we identified 20 novel variants in 15 genes. Four out of 36 probands carry compound heterozygous variants, and 32 probands carry homozygous variants. CONCLUSIONS: Employing a cost-effective targeted next-generation sequencing procedure, we identified the genetic causes of different retinal disorders in the majority of Iranian families in this study.
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