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[Fragile X Syndrome: case report in two brothers]
A M Modesto1, M de F Aguiar, H Barbosa
1Hospital de Base do Distrito Federal, Brasília, DF.
Jornal De Pediatria
|December 20, 2003
Summary
Pediatricians should recognize Fragile X Syndrome phenotypes due to its high incidence. Early diagnosis of this genetic disorder is crucial for timely intervention and multidisciplinary care.
Area of Science:
- Genetics
- Pediatrics
- Clinical Medicine
Context:
- Fragile X Syndrome (FXS) is a common genetic cause of intellectual disability.
- The syndrome presents with a wide spectrum of clinical manifestations and varying degrees of impairment.
- Early identification is essential for effective management.
Purpose:
- To increase pediatrician awareness of the clinical phenotype associated with Fragile X Syndrome.
- To emphasize the importance of recognizing FXS for early intervention.
- To highlight the diagnostic criteria and genetic basis of FXS.
Summary:
- This case report details two brothers with classic Fragile X Syndrome features, including intellectual disability, characteristic facial features, and macroorchidism.
- Cytogenetic and DNA analyses confirmed the presence of the fragile site on the X chromosome (Xq 27.3) in the affected individuals.
- The genetic mutation was detected in the brothers and also identified in maternal relatives, underscoring familial inheritance patterns.
Impact:
- Enhanced recognition of Fragile X Syndrome by pediatricians facilitates prompt diagnosis.
- Early multidisciplinary intervention can significantly improve outcomes for affected children.
- Increased awareness contributes to better genetic counseling and family support for FXS.