Abstract
In this report, we describe 10 male cases of complex chromosome rearrangements (CCRs) with fertility problems: seven of them showed impairment of spermatogenesis, oligoasthenoteratozoospermia or azoospermia; in the other three cases, recurrent abortions were observed. The CCRs were characterized by conventional fluorescence in situ hybridization (FISH) and multicolor FISH methods as well as by the routine G-banding technique. CCRs found in three cases with recurrent abortions were double two-way exchanges, which were the simplest forms of CCRs; three oligoastenoteratozoospermic cases were double two-way exchanges or three-way exchanges. However, the CCRs in four azoospermic cases were much more complicated forms of CCRs. From our results and a review of the literature, we conclude that the complexity of CCRs might affect the severity of spermatogenetic impairment rather than the number of chromosomes involved or the location of breakpoints.
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