ISSN:
1432-1076
Keywords:
Duchenne muscular dystrophy, Becker muscular dystrophy
;
Carrier diagnosis
;
Prenatal diagnosis
;
X-linked muscular dystrophies
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract The indirect approach to carrier detection and prenatal diagnosis of Duchenne and Becker muscular dystrophies based on the study of DNA polymorphisms closely linked to this gene has been followed by five Italian laboratories in the study of 106 pedigrees. Out of 354 women studied up to 1 May 1987, 147 were identified as carriers because of pedigree information and/or of increased creatine phosphokinase (CPK) values. Of the remaining 207, 184 could be assigned to three arbitrarily defined risk categories (low, intermediate and high) using linkage analysis. This disaggregation of women at risk is clearly more useful than that defined before DNA analysis, in which the same 184 women could be assigned only to the low or intermediate risk categories. Prenatal diagnosis was theoretically possible in 90% of carrier women, and was actually performed in 14 pregnancies, which led to the identification of four affected male foetuses, one also having Down syndrome.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00496422
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