Effect of long-term storage on deoxyribonucleic acid damage and motility of sperm bank donor specimens.

摘要

The percentage of sperm DNA damage in samples from sperm bank donors was not significantly different (P=.17), whereas the percentage of motile cells was lower (P=.009) after long-term (9-13 years) compared with short-term (1-5 years) storage. Density gradient isolation reduced the difference in sperm motility between the two groups.