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Ring 17 chromosome detected by amniocentesis
Humangenetik
|July 23, 1975
Summary
A fetus with a ring 17 chromosome (r(17)) showed no significant developmental abnormalities. This finding aligns with previous cases of ring 17 chromosome, suggesting a potentially mild impact on fetal development.
Area of Science:
- Genetics
- Fetal Development
- Chromosomal Abnormalities
Background:
- Ring chromosomes are rare structural rearrangements.
- Ring chromosome 17 (r(17)) is infrequently reported.
- Understanding the phenotypic impact of r(17) is crucial for genetic counseling.
Purpose of the Study:
- To describe a case of a fetus with a 46,XX,r(17) karyotype.
- To investigate the phenotypic presentation associated with the r(17) chromosome.
- To compare findings with previously reported cases of r(17).
Main Methods:
- Karyotyping via amniocentesis.
- Confirmation using chromosomal banding studies.
- Analysis of fetal tissues for chromosome presence.
Main Results:
- A fetus was identified with a 46,XX,r(17) karyotype.
- No significant phenotypic abnormalities were observed in the fetus.
- The ring chromosome 17 was isolated from multiple fetal tissues.
Conclusions:
- The absence of major developmental issues in this r(17) case is consistent with prior literature.
- Ring chromosome 17 may have a limited impact on gross fetal development.
- Further research is warranted to fully elucidate the r(17) phenotype.