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Franceschetti syndrome in a child with a de novo balanced translocation (5;13)(q11;p11) and significant decrease of
Human Genetics
|January 1, 1983
Summary
A rare de novo balanced translocation t(5;13)(q11;p11) was found in a 3-year-old girl with Franceschetti syndrome. This genetic finding suggests a potential position effect influencing the syndrome and hexosaminidase B gene localization.
Area of Science:
- Human genetics
- Medical genetics
- Chromosomal abnormalities
Background:
- Franceschetti syndrome is a rare genetic disorder.
- De novo balanced translocations are rare chromosomal abnormalities.
Observation:
- A 3-year-old girl presented with de novo balanced translocation t(5;13)(q11;p11).
- The patient also exhibited symptoms consistent with Franceschetti syndrome.
Findings:
- The co-occurrence of the translocation and Franceschetti syndrome suggests a potential link.
- A hypothesis of a position effect is proposed.
- Significantly decreased hexosaminidase B activity was observed.
Implications:
- The findings suggest the hexosaminidase B gene may be located on the 5q11 band.
- This case highlights the importance of investigating chromosomal abnormalities in rare genetic syndromes.
- Further research is needed to confirm the gene localization and the role of position effect.