Hum Reprod. Jun;15 Suppl Effects of progesterone on sperm function: mechanisms of action. Calogero AE(1), Burrello N, Barone N, Palermo I, . Sperm Action. 5th International Seminar on Reproductive Physiology and Sexual Endocrinology, Brussels, May No Cover. Editor(s): Hubinont P.O. The toxic effect of dead sperm on diluted bovine semen and the modifying effect of certain compounds on this toxicity were investigated. Toxicity is associated.