“…The presence of translocated phosphatidylserine in human ejaculated spermatozoa has also been studied. In semen, increased rates of externalized phosphatidylserine were associated with decreased sperm motility (Oosterhuis et al, 2000;Shen et al, 2002;Weng et al, 2002;Barroso et al, 2006;Varum et al, 2007), normal morphology (Shen et al, 2002) or concentration (Ricci et al, 2002), whereas no association to abnormal semen parameters was found by others (Barroso et al, 2000;Ricci et al, 2002;Lachaud et al, 2004;Martin et al, 2005). These contradictory results mostly derived from the criteria used for group classification, which were based on individual semen parameters without taking into consideration all of them together.…”