We report on a large 5-generation family with "nonspecific" X-linked mental retardation. Nine living affected males have an I& between 50 and 70 but have normal stature, facial appearance, and testicular volumes and no other abnormalities. Two obligate carrier females had borderline intellectual abi
Maternal mosaicism for mutations in theARXgene in a family with X linked mental retardation
β Scribed by K. Poirier; J. Abriol; I. Souville; C. Laroche-Raynaud; C. Beldjord; B. Gilbert; J. Chelly; T. Bienvenu
- Publisher
- Springer
- Year
- 2005
- Tongue
- English
- Weight
- 311 KB
- Volume
- 118
- Category
- Article
- ISSN
- 0340-6717
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π SIMILAR VOLUMES
X-linked mental retardation (XLMR) is a heterogeneous disorder that affects approximately 2 in 1000 males. JARID1C/SMCX is relatively new among the known XLMR genes, and seven different mutations have been identified previously in this gene [Jensen LR et al., Am. J. Hum. Genet. 76:227-236, 2005]. He
We report an extended family in which two brothers with a fragile X chromosome are mentally retarded while a third brother with the fragile site is both phenotypically and mentally normal. The study of six probes detecting restriction fragment length polymorphisms on either sides of the fragile site
Linkage analysis was performed in a family with nonspecific X-linked mental retardation (MRX). Affected individuals had no clinical characteristics other than mental retardation. Linkage was detected to the marker loci DXS477, DXS465, DXS52, DXS15 and F8C with maximum lod scores of 1.70, 1.32, 2.52,
Nonspecific X-linked mental retardation (XLMR) is a common disorder. The number of genes involved in this condition is not known, but it is estimated to be more than 10. We present a clinical and linkage study on 3 families with XLMR. All families were analyzed using highly polymorphic markers cover