OBJECTIVES: To evaluate and compare standard sperm parameters, and sperm DNA fragmentation in seminal ejaculates from men whose partners had a history of recurrent pregnancy loss (RPL) and in a control group of men who had recently established their fertility. METHODS: Semen samples from 31 patients with a history of recurrent pregnancy loss and 20 men with proven fertility were analyzed according to World Health Organization guidelines. Sperm DNA fragmentation was detected by the terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling assay. RESULTS: When sperm quality of the control group was compared with that of the RPL group, a significant difference was observed in sperm motility, but not in other parameters. The mean number of sperm cells with fragmented DNA was significantly increased in the RPL group (32.22 ± 6.14%) compared with control donors (10.20 ± 2.1%). CONCLUSIONS: Our data indicate that sperm from men with a history of RPL have a higher incidence of DNA damage and poor motility than sperm from a control group, and this can explain in part the pregnancy loss in these patients.
OBJECTIVES: To evaluate and compare standard sperm parameters, and sperm DNA fragmentation in seminal ejaculates from men whose partners had a history of recurrent pregnancy loss (RPL) and in a control group of men who had recently established their fertility. METHODS: Semen samples from 31 patients with a history of recurrent pregnancy loss and 20 men with proven fertility were analyzed according to World Health Organization guidelines. Sperm DNA fragmentation was detected by the terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling assay. RESULTS: When sperm quality of the control group was compared with that of the RPL group, a significant difference was observed in sperm motility, but not in other parameters. The mean number of sperm cells with fragmented DNA was significantly increased in the RPL group (32.22 ± 6.14%) compared with control donors (10.20 ± 2.1%). CONCLUSIONS: Our data indicate that sperm from men with a history of RPL have a higher incidence of DNA damage and poor motility than sperm from a control group, and this can explain in part the pregnancy loss in these patients.
Authors: Kishlay Kumar; Deepika Deka; Amar Singh; D K Mitra; B R Vanitha; Rima Dada Journal: J Assist Reprod Genet Date: 2012-06-13 Impact factor: 3.412