Relevance of Sperm DNA Fragmentation - eshre

• Motility seems to be the utmost t factor, since theselector separates spermatozoa according totheir motilty and not to their morphology.• This is supported by the literature Ramos andWetzels, 2001, Van den Berg et al 1998) and byour own observation, that the sperm swimmingclose to the surface of the supernatant showsignificantly reduced rates of DF after densitycentrifugation and swim-up.• Simply overlaying a sperm sample with medium,(w/o centrifugation) could lead to similar results.