Abstract:Leber's congenital amaurosis (LCA) is the earliest and most severe of all inherited retinal dystrophies. Recently, we mapped an LCA gene to chromosome 17p13.1 (LCA1) and ascribed the disease to mutations of the retinal guanylate cyclase (ret GC) gene in a subset of families of North African ancestry. Owing to the genetic heterogeneity of LCA and considering that LCA1 results from an impaired production of cGMP in the retina (with permanent closure of cGMP-gated cation channels), we hypothesized that the activa… Show more
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