Casswall T H, Björndahl L, Kvist U
Department of Physiology, Karolinska Institutet, Stockholm, Sweden.
J Trace Elem Electrolytes Health Dis. 1987 Dec;1(2):85-7.
Zinc normally participates in the stabilization of the chromatin of human spermatozoa, which have a high content of zinc after ejaculation. Sperm chromatin, depleted of zinc with EDTA, regained stability in the detergent SDS after exposure to Cd2+ in vitro. This effect was reversible with EDTA, but albumin could not reverse the stabilization caused by Cd2+ to the same extent as it reversed the stabilization caused by Zn2+.
锌通常参与人类精子染色质的稳定,射精后精子含有高含量的锌。用乙二胺四乙酸(EDTA)去除锌的精子染色质,在体外暴露于镉离子(Cd2+)后,在去污剂十二烷基硫酸钠(SDS)中恢复了稳定性。这种作用可用EDTA逆转,但白蛋白不能像逆转锌离子(Zn2+)引起的稳定性那样,同等程度地逆转镉离子引起的稳定性。