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Related Experiment Videos

Experience with prenatal fragile X detection.

E C Jenkins, W T Brown, J Brooks

    American Journal of Medical Genetics
    |January 1, 1984
    PubMed
    Summary
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    Prenatal diagnosis of fragile X syndrome (fra(X)) was attempted 9 times, with 3 positive fetuses identified. Confirmed cases showed large testes but normal development, with outcomes confirmed post-birth.

    Area of Science:

    • Genetics
    • Prenatal Diagnosis
    • Fragile X Syndrome

    Background:

    • Fragile X syndrome (fra(X)) is a genetic disorder.
    • Accurate prenatal detection is crucial for genetic counseling and management.
    • Previous methods for fra(X) prenatal diagnosis have limitations.

    Purpose of the Study:

    • To evaluate the feasibility and accuracy of prenatal detection of fragile X syndrome (fra(X)).
    • To assess the clinical and developmental outcomes of fetuses diagnosed with fra(X) prenatally.

    Main Methods:

    • Attempted prenatal detection of fra(X) in 9 pregnancies.
    • Diagnostic confirmation using whole blood fra(X) studies post-birth.
    • Evaluated fetal characteristics including testes size, anthropometry, bone age, and neurohistology.

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    Main Results:

    • Three fetuses were diagnosed as fra(X) positive (2 males, 1 female).
    • Diagnosis confirmed in 2 males; their fetuses had enlarged testes but normal development.
    • Post-birth confirmation of normal outcomes for 2 males and 1 female.

    Conclusions:

    • Prenatal detection of fra(X) is feasible but requires further validation.
    • Early identification of fra(X) positive fetuses allows for monitoring and management.
    • Enlarged fetal testes may be an indicator in prenatal fra(X) diagnosis.