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Related Experiment Videos

A case of ring chromosome.

D S Brookfield, S Walker

    Journal of Medical Genetics
    |December 1, 1976
    PubMed
    Summary

    This study describes a girl with a G22 ring chromosome, noting few physical abnormalities but significantly retarded verbal skills alongside low-normal performance quotient.

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    Area of Science:

    • Genetics
    • Human Chromosome Abnormalities
    • Developmental Pediatrics

    Background:

    • Ring chromosome 22 (R22) is a rare chromosomal abnormality.
    • R22 can be associated with a spectrum of developmental and cognitive impairments.
    • Understanding the phenotype associated with specific ring chromosomes is crucial for genetic counseling and clinical management.

    Observation:

    • A case study of a female individual with a G22 ring chromosome is presented.
    • The patient exhibited minimal physical dysmorphisms.
    • Cognitive assessment revealed a performance quotient in the low normal range.

    Findings:

    • Significant verbal development delay was observed in the patient.
    • The specific G22 ring chromosome may influence neurodevelopmental trajectories.
    • Discrepancies between verbal and performance abilities are noted.

    Implications:

    • This case highlights the variable expressivity of G22 ring chromosome syndrome.
    • Further research is needed to elucidate genotype-phenotype correlations for R22.
    • Early identification and targeted interventions may improve outcomes for individuals with similar genetic conditions.

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