Article ID Journal Published Year Pages File Type
3068129 The Lancet Neurology 2007 11 Pages PDF
Abstract

SummaryRecent advances in our understanding of the clinical and molecular features of the fragile-X mental-retardation 1 gene, FMR1, highlight the importance of single-gene disorders. 15 years after its discovery, FMR1 continues to reveal new and unexpected clinical presentations and molecular mechanisms. Loss of function of FMR1 is a model for neurodevelopmental and behavioural disorders, including mental retardation, autism, anxiety, and mood instability. In addition, overexpression and CNS toxicity of FMR1 mRNA causes a late-onset neurodegenerative disorder, the fragile-X-associated tremor/ataxia syndrome (FXTAS). A similar mechanism is probably involved in premature ovarian failure, which affects up to 20% of female carriers of an altered FMR1 gene.

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