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Down Syndrome

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  • Down syndrome, or Down's syndrome, is a genetic disability that is caused by an extra partial or complete chromosome which results in mental retardation and other problems. John Langdon Down, a British physician was the first to describe the condition as a distinct and separate entity.

    More than 400,000 people in the U.S., approximately 1 out of every 733 live births, have Down syndrome and affects people of all ages, races and economic levelsNDSS: Information

  • Fast Facts

    1. 1866: John Langdon Down, a British physician, published a scholarly work describing the characteristics a person with the syndromeNDSS: Information
    2. John Landon Down is recognized as the "father" of the syndromeNDSS: Information
    3. 1959: Jerome Lejeune, a French physician, identified Down syndrome as a chromosomal anomalyNDSS: Information
    4. Down the recognition as the "father" of the syndromeNDSS: Information
    5. Down syndrome individuals have 47 chromosomes present in each cell of individuals instead of the usual 46NDSS: Information
  • Tests During Pregnancy

  • Common Characteristics

    • Flattened facial features
    • Upward slanting eyes
    • Small head
    • Protruding tongue
    • Unusually shaped ears
    • Excessive flexibility
    • Broad, short hands with a single crease in the palm
    • Poor muscle tone
    • Relatively short fingers

  • Disclaimer

    The content in this page is not a substitute for professional medical advice. Please consult your doctor for more information on Down syndrome.
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