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Related Experiment Videos

The "labial index" in Down's syndrome.

T Iancu

    Clinical Genetics
    |July 1, 1975
    PubMed
    Summary

    Newborn females with Down syndrome exhibit distinct labial characteristics. The labial index, a measurement of the labia majora, is significantly lower in infants with Down syndrome compared to typical newborns.

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    Area of Science:

    • Genetics
    • Pediatrics
    • Anatomy

    Background:

    • Down syndrome, also known as trisomy 21, is a genetic disorder associated with characteristic physical features.
    • External genitalia development can be affected in various congenital conditions.

    Purpose of the Study:

    • To investigate the morphology of the labia majora in newborn females with Down syndrome.
    • To determine if a quantifiable difference exists using the labial index.

    Main Methods:

    • Comparative morphological analysis of the labia majora.
    • Calculation of the 'labial index' based on width and length measurements.

    Main Results:

    • Newborn females with Down syndrome present with shorter and wider labia majora compared to typical newborns.
    • The labial index was found to be significantly lower in the Down syndrome group.

    Conclusions:

    • The labial index is a potentially useful numerical indicator for identifying morphological differences in the labia majora associated with Down syndrome in newborns.
    • These findings contribute to the understanding of physical variations in Down syndrome.

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