PMID- 25001634 OWN - NLM STAT- MEDLINE DCOM- 20150527 LR - 20211021 IS - 1573-7330 (Electronic) IS - 1058-0468 (Print) IS - 1058-0468 (Linking) VI - 31 IP - 9 DP - 2014 Sep TI - Meiotic segregation and sperm DNA fragmentation in Tunisian men with dysplasia of the fibrous sheath (DFS) associated with head abnormalities. PG - 1167-74 LID - 10.1007/s10815-014-0290-4 [doi] AB - PURPOSE: Dysplasia of the Fibrous Sheath (DFS) is a primitive flagellar pathology for which a broad spectrum of ultrastructural flagellar abnormalities has been described responsible for a severe to total asthenozoospermia. To this phenotype other morphological abnormalities including cephalic and abnormalities in nuclear structure can be associated that could compromise embryonic development in case of use of Assisted Reproductive Technology (ART). The aim of this study was to evaluate the level of DNA fragmentation and aneuploidy rate in ejaculated spermatozoa of Tunisian men presented with DFS sperm defect associated to high percentage of head abnormalities and to compare the results with those from fertile men. METHODS: Sperm DNA fragmentation was evaluated by the terminal desoxynucleotidyl transferase mediated deoxyuridine triphosphate biotin nick-end labelling (TUNEL) assay. The study of meiotic segregation was performed by Fluorescence in situ hybridization (FISH) for chromosomes X, Y and 18. RESULTS: The mean DNA fragmentation index was significantly higher in patients compared to the control group. FISH revealed a significantly higher incidence of sperm aneuploidies compared with controls. All patients showed elevated frequencies of sex chromosomes disomy, disomy 18 and diploidy. CONCLUSIONS: In some cases of syndromic teratozoospermia due to sperm tail structural abnormalities, such as DFS, other morphological cephalic abnormalities may be associated. In these cases we have demonstrated impaired sperm nuclear quality which will affect the results in ICSI. Hence the interest of a thorough study of the sperm nucleus in these forms of infertility in order to predict the chances of success in ART. FAU - Ghedir, H AU - Ghedir H AD - Laboratory of Cytogenetics, Molecular Genetics and Reproductive Biology, Farhat Hached University Teaching Hospital, 4000, Sousse, Tunisia, ghedir.houda@hotmail.fr. FAU - Mehri, A AU - Mehri A FAU - Mehdi, M AU - Mehdi M FAU - Brahem, S AU - Brahem S FAU - Saad, A AU - Saad A FAU - Ibala-Romdhane, S AU - Ibala-Romdhane S LA - eng PT - Journal Article DEP - 20140708 PL - Netherlands TA - J Assist Reprod Genet JT - Journal of assisted reproduction and genetics JID - 9206495 SB - IM MH - Adult MH - Aneuploidy MH - Asthenozoospermia/*genetics/pathology MH - *Chromosome Segregation MH - *DNA Fragmentation MH - Humans MH - In Situ Nick-End Labeling MH - Male MH - Meiosis MH - Spermatozoa/*abnormalities/ultrastructure MH - Tunisia PMC - PMC4156953 EDAT- 2014/07/09 06:00 MHDA- 2015/05/28 06:00 PMCR- 2015/09/01 CRDT- 2014/07/09 06:00 PHST- 2014/04/15 00:00 [received] PHST- 2014/06/30 00:00 [accepted] PHST- 2014/07/09 06:00 [entrez] PHST- 2014/07/09 06:00 [pubmed] PHST- 2015/05/28 06:00 [medline] PHST- 2015/09/01 00:00 [pmc-release] AID - 290 [pii] AID - 10.1007/s10815-014-0290-4 [doi] PST - ppublish SO - J Assist Reprod Genet. 2014 Sep;31(9):1167-74. doi: 10.1007/s10815-014-0290-4. Epub 2014 Jul 8.