FXTAS is a condition that develops in some men and women who have an altered form of a specific gene. People with FXTAS have a change or mutation in a gene called the Fragile X Mental Retardation 1 (FMR1) gene. This gene is found on the X chromosome. To learn more, visit the How is a change in a gene related to FXTAS? section.
FXTAS occurs later in life (in people older than age 50) and is characterized by tremors when making purposeful movements, balance problems, Parkinson's-like symptoms such as muscle stiffness or rigidity, and memory loss. Most people have no symptoms until the onset of the condition later in life.
How is a change in a gene related to FXTAS? »
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