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The basis for sex-specific differences in chemically-induced and age-related aneuploidy of mammalian germ cells is still unknown. We have analysed the maturation of isolated mouse oocytes to characterize the mechanisms underlying drug-induced aneuploidy produced by two compounds, chloral hydrate (CH) and diazepam (DZ). When administered in vivo both drugs increase hyperploidy in male but not in...
The application of methods based on in situ hybridization to centromeric regions to cytokinesis-blocked cells provides a convenient way for the analysis of chromosome segregation in interphase cells. In this way, the reciprocal segregation patterns in daughter nuclei can be visualized and most of the problems related to the artefactual loss or gain of chromosomes which flaw other methods are avoided...
Cytochalasin B-blocked binucleate human lymphocytes from female donors have been used to measure micronucleus induction and other aneuploidy events after treatment with colchicine, vinblastine or carbendazim. For the aneuploidy events, centromeric probes for 6 selected chromosomes (1, 8, X, 11, 17, 18) were used to measure chromosome loss, addition and non-disjunction in the interphase nuclei of...
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