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Fragile X syndrome (FXS)

Related Terms

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Background

  • Fragile X syndrome (FXS), also called Martin-Bell syndrome, is the most common type of inherited intellectual disability (formerly called mental retardation). Symptoms of FXS are life long, but they range from mild to severe. Symptoms are typically more severe in males than females.
  • Individuals with FXS inherit a mutated gene from their parents. This mutated gene is unable to produce enough of a protein (called the familial mental retardation protein) that is needed for the body's cells, especially the brain cells, to develop and function normally. The amount of protein that can be produced varies among patients, and partially determines the severity of the disorder.
  • Patients may also experience other symptoms, including social anxiety, attention deficits, speech and language disorders, seizure disorders, and increased sensitivity to sensory stimuli. A patient's life expectancy is largely dependent on the severity of his/her intellectual disability.
  • About one out of 4,000 males and one out of 8,000 females are born with FXS each year in the United States.
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Causes

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Signs and Symptoms

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Complications

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Diagnosis

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Treatment

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Tips For Caregivers

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Integrative Therapies

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Prevention

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Author Information

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References

Natural Standard developed the above evidence-based information based on a thorough systematic review of the available scientific articles. For comprehensive information about alternative and complementary therapies on the professional level, go to www.naturalstandard.com. Selected references are listed below.

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The information in this monograph is intended for informational purposes only, and is meant to help users better understand health concerns. Information is based on review of scientific research data, historical practice patterns, and clinical experience. This information should not be interpreted as specific medical advice. Users should consult with a qualified healthcare provider for specific questions regarding therapies, diagnosis and/or health conditions, prior to making therapeutic decisions.