Prenatal diagnosis for Schmid metaphyseal chondrodysplasia in twins.
We report prenatal diagnostic studies for metaphyseal chondrodysplasia of the Schmid type. Identification of a specific COL10A1 gene mutation in an affected father allowed prenatal diagnosis by chorionic villus sampling in a twin pregnancy. Neither of the nonidentical twins received the abnormal COL10A1 gene from their affected father. This result was confirmed by postnatal DNA analysis. Prenatal diagnosis can be offered to all families with characterized COL10A1 gene mutations.
Milunsky
J
J
Center for Human Genetics and Department of Pediatrics, Boston University School of Medicine, Mass 07118-7394, USA. jmilunsk@bu.edu
Maher
T
T
Lebo
R
R
Milunsky
A
A
D015193:Chorionic Villi Sampling; D004200:Diseases in Twins / Q000175:diagnosis* / Q000235:genetics; D005315:Fetal Diseases / Q000175:diagnosis* / Q000235:genetics; D005817:Genetic Counseling; D005820:Genetic Testing; D006801:Humans; D008297:Male; D010009:Osteochondrodysplasias / Q000175:diagnosis* / Q000235:genetics; D017354:Point Mutation; D014429:Twins, Dizygotic