Fragile X syndrome is the most common form of inherited mental retardation. A problem with a specific gene causes the disease. Normally, the gene makes a protein you need for brain development. But the mutation causes a person to make little or none of the protein, which results in the symptoms of Fragile X.
People with only a small change in the gene might not show any signs of Fragile X. People with bigger changes can have severe symptoms. These might include
Fragile X has no cure. You can treat some symptoms with educational, behavioral or physical therapy, and with medicines. Getting treatment early for Fragile X can help.
National Institute of Child Health and Human Development
References and abstracts from MEDLINE/PubMed (National Library of Medicine)
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|Date last updated: 21 July 2008
Topic last reviewed: 05 August 2008