| Literature DB >> 17678909 |
Li Yuyan1, Wu Junqing, Yuan Wei, Zhou Weijin, Gao Ersheng.
Abstract
Low serum zinc levels are harmful to semen quality in Chinese men. In this study, eligible men aged 20-59 years old-excluding those who had ever had urinary or genital disease, tuberculosis, or occupational heavy metal contact-were examined for semen quality and serum zinc and copper concentrations. Progressive motility showed differences among the five copper groups, but multiple logistic analyses did not show that higher or lower serum copper levels had a significant effect on sperm quality. When serum zinc concentration was low, the risk of asthenozoospermia was higher. The ratio of Cu/Zn was higher in the progressive motility abnormal group than in the normal group.Entities:
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Year: 2007 PMID： 17678909 DOI： 10.1016/j.fertnstert.2007.04.028
Source DB: PubMed Journal: Fertil Steril ISSN： 0015-0282 Impact factor: 7.329