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Human Fertility
an international, multidisciplinary journal dedicated to furthering research and promoting good practice
Volume 18, 2015 - Issue 2
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ORIGINAL ARTICLE

A study of aneuploidy and DNA fragmentation in spermatozoa of three men with sex chromosome mosaicism including a 45,X cell line

, , , , &
Pages 96-99 | Received 04 Apr 2014, Accepted 03 Jul 2014, Published online: 29 Dec 2014
 

Abstract

Meiotic segregation of mosaic males with a 45,X cell line has been little examined. In this study, we evaluated the risk of aneuploid gametes using fluorescence in situ hybridization (FISH) and DNA fragmentation in ejaculated spermatozoa of three men with sex chromosome mosaicism including a 45,X cell line. Triple- and dual-color FISH were performed. Sperm DNA fragmentation was detected using the TUNEL assay. A significantly increased frequency of XY disomic spermatozoa was observed for patients (P)1 and P2. A significant increase in diploidy and autosomal aneuploidy was found in P2 and P3, respectively. The rate of DNA fragmentation was not different from that observed in a control group. Data from the literature are scarce (only 3 cases reported), making comparison of the present data difficult, especially as the frequencies of the cell lines comprising the mosaicism differed between patients. Furthermore, the proportion of the different cell lines can differ from one tissue to another in the same patient. Whether the relative levels of the several cell lines present in the mosaicism can influence the rate of aneuploid spermatozoa remains unknown.

Acknowledgements

Some samples were provided by GERMETHEQUE biobank (France).

Declaration of interest: The authors report no declarations of interest. The authors alone are responsible for the content and writing of the paper.

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