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Oral levodopa rescues retinal morphology and visual function in a murine model of human albinism
Authors:Helena Lee  Jennifer Scott  Helen Griffiths  Jay E. Self  Andrew Lotery
Abstract:
Albinism is a group of disorders characterized by pigment deficiency and abnormal retinal development. Despite being a common cause for visual impairment worldwide, there is a paucity of treatments and patients typically suffer lifelong visual disability. Residual plasticity of the developing retina in young children with albinism has been demonstrated, suggesting a post‐natal window for therapeutic rescue. L‐3, 4 dihydroxyphenylalanine (L‐DOPA), a key signalling molecule which is essential for normal retinal development, is known to be deficient in albinism. In this study, we demonstrate for the first time that post‐natal L‐DOPA supplementation can rescue retinal development, morphology and visual function in a murine model of human albinism, but only if administered from birth or 15 days post‐natal age.
Keywords:albinism  levodopa  neuronal plasticity  ocular  retina  therapeutics  vision
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