Prenatal Diagnosis of De Novo Reciprocal Translocation t(1;12)(q21.3;p11.2) with Trisomy 21 and Sperm FISH Analysis for Increased Aneuploidy Risk
نویسندگان
چکیده
Complex rearrangements such as de novo translocations together with aneuploidy are unusual situations in prenatal diagnosis. We report a case with de novo translocation t(1;12)(q21.3;p11.2) and trisomy 21. Father’s sperm was analyzed for potential of increased risk of aneuploidy. Results showed no paternal increased risk for chromosomes 13, 18, 21, X, Y. Based on our results, we suggest that possible increased maternal aneuploidy risk and other possible mechanisms should be investigated to better understand cell division errors and to give better genetic counseling.
منابع مشابه
A chromosome 21-specific cosmid cocktail for the detection of chromosome 21 aberrations in interphase nuclei.
Fluorescent in situ hybridization (FISH) with a 21q11-specific probe (CB21c1) consisting of three non-overlapping cosmids has been applied to interphase amniocytes of pregnancies at increased risk for fetal aneuploidy (N = 78) and to interphase lymphocytes, cultured and uncultured, of patients referred for Down syndrome (N = 19 and 28, respectively). In the uncultured amniocytes, six chromosome...
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Analysis of sperm chromosomes by G-banding and two-colour fluorescence in-situ hybridization (FISH) was carried out in the father of a child with a de-novo reciprocal translocation t(11;15)(q12;q22). Sperm chromosome complements were obtained after in-vitro fusion of zona-free hamster oocytes and donor spermatozoa. A total of 112 sperm complements was first analysed by G-banding. The frequency ...
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247 Rousseaux S, Chevret E, Monteil M, Cozzi J, Pelletier R, Delafontaine D, Sele B: Sperm nuclei analysis of a Robertsonian t(14q21q) carrier, by FISH, using three plasmids and two YAC probes. Hum Genet 96: 655–660 (1995). Rubes J, Vozdova M, Kubickova S: Aneuploidy in pig sperm: multicolor fl uorescence in situ hybridization using probes for chromosomes 1, 10, and Y. Cytogenet Cell Genet 85: ...
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