Incidence of Menkes disease
T Tønnesen1, W J Kleijer, N Horn
1John F. Kennedy Institute, Glostrup, Denmark.
Abstract:
We have calculated the incidence of Menkes disease for Denmark, France, The Netherlands, the United Kingdom and West Germany, based on known Menkes patients born during the time period 1976-87. Considering live-born Menkes patients, the combined incidence for these five countries is 1 Menkes patient per 298,000 live-born babies. If the number of affected aborted fetuses are taken into account, the incidence is 1 Menkes per 254,000 live-born babies. This incidence, which is 2-4 times lower than earlier published incidence figures, places Menkes disease as an extremely rare disease. The mutation rate for Menkes disease is estimated to be 1.96 x 10(-6), based on the number of isolated Menkes cases born during the time period 1976-87 and the total number of newborn males during this time.
Insights
The incidence of Menkes disease is 1 in 298,000 live births, significantly lower than previously reported. This rare genetic disorder affects copper metabolism, impacting male infants.
Area of Science:
- Genetics
- Pediatrics
- Metabolic Disorders
Background:
- Menkes disease is a rare X-linked recessive disorder.
- It is caused by mutations in the ATP7A gene, affecting copper transport.
- Previous incidence estimates varied significantly.
Purpose of the Study:
- To accurately calculate the incidence of Menkes disease in five European countries.
- To compare current incidence rates with historical data.
- To estimate the mutation rate for Menkes disease.
Main Methods:
- Retrospective analysis of Menkes disease patients born between 1976-1987.
- Data collected from Denmark, France, The Netherlands, the United Kingdom, and West Germany.
- Calculation of incidence based on live-born patients and estimated affected fetuses.
Main Results:
- The combined incidence of Menkes disease was 1 per 298,000 live births.
- Including affected aborted fetuses, the incidence rose to 1 per 254,000 live births.
- These figures are 2-4 times lower than previously published estimates.
Conclusions:
- Menkes disease is an extremely rare condition.
- The calculated incidence provides a more accurate understanding of its prevalence.
- The estimated mutation rate for Menkes disease is 1.96 x 10(-6).
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