Aging in fragile X syndrome.
Journal of Neurodevelopmental Disorders
|June 30, 2010
Summary
Aging with fragile X syndrome (FXS) presents common medical issues including neurological and gastrointestinal problems. Understanding these aging complications in FXS is crucial for targeted screening and care.
Area of Science:
- Genetics
- Neurology
- Gerontology
Background:
- Fragile X syndrome (FXS) research historically focused on pediatric behavioral and cognitive issues.
- The emergence of fragile X-associated tremor ataxia syndrome (FXTAS) in older adults with FMR1 gene premutations highlights a gap in understanding aging in FXS.
- Approximately 40% of males with FXS exhibit repeat size mosaicism, potentially increasing their risk for FXTAS due to elevated FMR1-mRNA levels.
Purpose of the Study:
- To investigate and identify the medical complications associated with aging in individuals with fragile X syndrome (FXS).
- To provide a comprehensive overview of health challenges faced by older adults with FXS.
Main Methods:
- A retrospective survey of aging patients with FXS followed over time.
- Data collection from 62 individuals (44 males, 18 females) aged 40 and above with the FXS full mutation.
- Analysis of medical problems, comparing those with full mutation versus mosaicism, and examining sex differences in movement disorders.
Main Results:
- The five most prevalent medical problems in aging FXS patients were neurological issues (38.7%), gastrointestinal problems (30.6%), obesity (28.8%), hypertension (24.2%), and heart problems (24.2%).
- Movement disorders showed a significant difference between males and females (38.6% vs. 10.2%, p = 0.029).
- No significant differences in medical problems were observed between individuals with a full mutation and those with mosaicism.
Conclusions:
- Aging in FXS is associated with a distinct set of medical challenges, particularly neurological and gastrointestinal issues.
- Identifying these age-related medical problems is essential for developing effective screening protocols and treatment strategies for the FXS population.
- Further research is needed to understand the specific mechanisms and management of these conditions in aging individuals with FXS.
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