Prenatal diagnosis of Apert syndrome |
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Authors: | CC Chang FJ Tsai HD Tsai CH Tsai YY Hseih CC Lee TC Yang JY Wu |
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Affiliation: | Department of Obstetrics and Gynecology, China Medical College Hospital, Taichung, Taiwan, R.O.C. |
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Abstract: | Apert syndrome (AS) is clinically characterized by typical facial features and symmetrical syndactyly of the digits. AS is inherited as an autosomal dominant trait. Recently, a fibroblast growth factor receptors 2 (FGFR2) mutation, either C934G or C937G, was identified in exon IIIa. Our report documents an affected mother and son in whom one of the two mutations in AS had occurred sporadically in the mother. The diagnosed of AS was based on associated abnormal physical features and on molecular genetic analysis. A C-to-G transversion at position 937 of the cDNA resulting in a proline-to-arginine substitution at codon 259 was found in the mother. In her second pregnancy, prenatal diagnosis by both restriction analysis and direct sequencing was undertaken and this showed that the female fetus had not inherited the mutation. |
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