First confirmed case with paternal uniparental disomy of chromosome 16
✍ Scribed by Kohlhase, J�rgen; Janssen, Bart; Weidenauer, Karin; Harms, Karsten; Bartels, Iris
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 12 KB
- Volume
- 91
- Category
- Article
- ISSN
- 0148-7299
- DOI
- 10.1002/(sici)1096-8628(20000320)91:3<190::aid-ajmg6>3.0.co;2-i
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✦ Synopsis
The existence of paternal uniparental disomy of chromosome 16 [upd( 16)pat] has previously been suspected but has not been proven. We report prenatal detection and follow-up of isodisomic upd(16)pat in a child with minimal defects but otherwise normal development. Our results indicate that isodisomic upd(16)pat is associated with a normal outcome if no recessive mutation is reduced to homozygosity. Am.
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Stable centromeric breakage in nonacrocentric chromosomes and balanced reciprocal translocation mosaicism are both rare events. We studied a family in which the mother had mosaicism for a balanced reciprocal translocation between chromosomes 10 and 16 which was associated with a break in chromosome
Maternal uniparental disomy of chromosome 21 [upd(21)mat] was found previously in a normal female and in 2 cases of early embryonic failure. We present a phenotypically normal child with upd(21)mat due to a de novo der(21;21)(q10;10). This finding suggests that chromosome 21 is not imprinted in the
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