We read with interest the article, published recently in this journal by Ronce et al. [1999] describing three generations of a French family segregating with a syndromal form of X-linked mental retardation (XLMR) characterized by hypotonia, intractable seizures, and severe mental deficiency. We wish
X-linked mental retardation associated with cleft lip/palate maps to Xp11.3-q21.3
β Scribed by Siderius, Liesbeth E.; Hamel, Ben C.J.; van Bokhoven, Hans; de Jager, Frank; van den Helm, Bellinda; Kremer, Hannie; Heineman-de Boer, Josien A.; Ropers, Hans-Hilger; Mariman, Edwin C.M.
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 46 KB
- Volume
- 85
- Category
- Article
- ISSN
- 0148-7299
- DOI
- 10.1002/(sici)1096-8628(19990730)85:3<216::aid-ajmg6>3.0.co;2-x
No coin nor oath required. For personal study only.
β¦ Synopsis
A family is described in which X-linked mild to borderline mental retardation (MR) is associated with cleft lip/palate. Linkage analysis showed a maximum LOD score of Z=2.78 at =0.0 for the DXS441 locus with flanking markers DXS337 and DXS990, defining the region Xp11.3-q21.3 with a linkage interval of 25 cM. Am.
π SIMILAR VOLUMES
Clinical and molecular studies are reported on a family with X-linked mental retardation (XLMR) in which there are eight affected males in three generations. Although the males have somatic manifestations, these are variable and in most cases do not allow clear distinction of affected and unaffected
Two families with nonspecific X-linked mental retardation (XLMR) are presented. In the first family, MRX49, 5 male patients in 2 generations showed mild to moderate mental retardation. Two-point linkage analysis with 28 polymorphic markers, dispersed over the X-chromosome, yielded a maximal LOD scor
As part of an integrated approach to DNAlinkage analysis in X-linked mental retardation (XLMR), 29 members of five families suspected of having XLMR underwent psychometric assessment. Mental retardation was confirmed in all participants. The range of mental retardation varied from mild to profound w
Of the gene-rich regions of the human genome, Xq28 is the most densely mapped. Mutations of genes in this band are responsible for 10 syndromal forms of mental retardation and 5 nonsyndromal forms. Clinical and molecular studies reported here add an additional syndromic form of X-linked mental retar
We studied a family with 11 males having X-linked mental retardation (XLMR) using microsatellite markers. Aside from the mental retardation, the affected males do not appear to differ from their unaffected brothers or uncles. The gene for this XLMR condition has been linked to DXS451 in Xp22.13 with