Carrier detection and prenatal diagnosis of Pelizaeus-Merzbacher disease using a combination of anonymous DNA polymorphisms and the proteolipid protein (PLP) gene cDNA.
We report carrier identification and a prenatal diagnosis using DNA polymorphisms in 2 families with X-linked Pelizaeus-Merzbacher disease (PMD). In both families, the proteolipid protein (PLP) gene in the single affected male could be traced back to his unaffected maternal grandfather. Therefore, each family contains a new mutation. In the case of the prenatal diagnosis, the fetus was shown by cytogenetic analysis to be a female, who we predict will be a noncarrier of PMD based on her genotype with the PLP intragenic polymorphism.
Bridge
P J
PJ
DNA Diagnostic Laboratory, Kingston General Hospital, Ontario, Canada.
MacLeod
P M
PM
Lillicrap
D P
DP
D004247:DNA / Q000032:analysis; D002549:Diffuse Cerebral Sclerosis of Schilder / Q000175:diagnosis* / Q000235:genetics; D005260:Female; D006580:Genetic Carrier Screening; D008040:Genetic Linkage; D006801:Humans; D008297:Male; D010375:Pedigree; D012150:Polymorphism, Restriction Fragment Length; D011296:Prenatal Diagnosis; D011510:Proteolipids / Q000235:genetics*
D011510:Proteolipids; D004247:DNA