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Polydactyly: report of a large kindred
Southern Medical Journal
|April 11, 1976
Summary
Polydactyly, a condition of extra digits, was studied in a family across four generations. The trait was found to be inherited in an autosomal dominant pattern, with no associated congenital heart disease observed.
Area of Science:
- Medical Genetics
- Human Physiology
- Congenital Disorders
Background:
- A 33-year-old woman presented with polydactyly and patent ductus arteriosus.
- This prompted an investigation into her family's medical history.
- Congenital heart disease was not observed in other family members.
Purpose of the Study:
- To investigate the inheritance pattern of polydactyly within a family.
- To determine if polydactyly is linked to congenital heart disease in this kindred.
Main Methods:
- Pedigree analysis was conducted across four generations.
- Individuals with polydactyly were identified and documented.
Main Results:
- A significant number of individuals exhibited polydactyly.
- No other instances of congenital heart disease were identified in the family.
- The inheritance pattern of polydactyly was determined to be autosomal dominant.
Conclusions:
- Polydactyly in this family follows an autosomal dominant inheritance pattern.
- The co-occurrence of polydactyly and patent ductus arteriosus in the proband appears coincidental.
- Further research may explore genetic factors influencing limb development and congenital anomalies.