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Related Experiment Videos

Ring chromosome 21.

L Zergollern, D Muzinić, Z Raic

    Acta Medica Iugoslavica
    |January 1, 1989
    PubMed
    Summary
    This summary is machine-generated.

    A rare ring chromosome 21 anomaly was discovered during prenatal testing. This chromosomal abnormality was found in the unborn child, mother, and her other child, indicating familial inheritance.

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    Area of Science:

    • Human genetics
    • Cytogenetics
    • Reproductive medicine

    Background:

    • Prenatal diagnosis aims to identify chromosomal abnormalities early in pregnancy.
    • Genetic counseling is crucial for families with a history of genetic disorders or anomalies.
    • Ring chromosome 21 is a rare chromosomal abnormality with potential health implications.

    Observation:

    • A rare ring chromosome 21 anomaly was identified in the prenatal amniotic fluid of a 38-year-old woman.
    • The woman sought genetic advice due to a history of cystic fibrosis in her first pregnancy.
    • Karyotyping revealed the mother and her 7-year-old child also carried the identical ring chromosome 21 anomaly.

    Findings:

    • The study presents a rare case of ring chromosome 21.
    • The anomaly was inherited, with the mother identified as a carrier.

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  • The same ring chromosome 21 was present in the mother, her unborn child, and her 7-year-old child.
  • Implications:

    • This case highlights the importance of comprehensive karyotyping in prenatal diagnosis, even when specific concerns like cystic fibrosis are present.
    • Identifying familial carriers of rare chromosomal anomalies like ring chromosome 21 is vital for genetic counseling and reproductive planning.
    • Further research into the clinical manifestations and inheritance patterns of ring chromosome 21 is warranted.