Amniocentesis on a 32-year-old woman at risk for trisomy 21 by maternal serum triple screen showed a 46,Y,inv(X) (p22.1q24) karyotype in all cells analyzed. A blood sample was obtained from the mother for cytogenetic evaluation. Since she had the same inversion, DNA replication studies were performe
Paracentric inversion of the X chromosome [inv(X)(q12q28)] in familial FG syndrome
โ Scribed by Briault, Sylvain; Odent, Sylvie; Lucas, Josette; Le Merrer, Martine; Turleau, Catherine; Munnich, Arnold; Moraine, Claude
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 16 KB
- Volume
- 86
- Category
- Article
- ISSN
- 0148-7299
- DOI
- 10.1002/(sici)1096-8628(19990910)86:2<112::aid-ajmg4>3.0.co;2-3
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โฆ Synopsis
FG syndrome is an X-linked incomplete recessive condition comprising mental retardation, congenital hypotonia, macrocephaly, a distinctive facial appearance, and constipation or anal malformations. Here, we report on a chromosome X inversion [inv(X)(q12q28)] in a boy with FG syndrome and in his mentally retarded maternal uncle, and we discuss the possible involvement of this paracentric inversion in the FG syndrome. Am. J. Med. Genet. 86:112-114, 1999.
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