title: Cadmium, Chromium, and Copper Concentration plus Semen-Quality in Environmental Pollution Site, China.
abstract: BACKGROUND
  The environmental pollution is one of the factors contributing to the decrease of sperm quality for human beings. The aim of this study was to assess cadmium (Cd), chromium (Cr), and copper (Cu) concentration of man in environmental pollution site, and explore relationships between men exposure to Cd, Cr, and Cu and semen-quality parameters in environmental pollution site.
  
  
  METHODS
  Ninety five men were recruited through pollution area and controls in 2011. We measured semen quality using Computer-aided Semen Quality Analysis, and Cd, Cr, and Cu levels in seminal plasma using Graphite Gurnace Atomic Absorption Spectroscopy. Spearman rank correlation analysis was used to evaluate the correlation between Cd, Cr and Cu concentration in seminal plasma and semen quality.
  
  
  RESULTS
  The mean of seminal plasma Cd, Cr, and Cu values in pollution area was higher than the controls. Seminal plasma Cr values displayed a significant negative correlation with total motility and normomorph sperm rate. Seminal plasma Cu values also displayed a negative correlation with normomorph sperm rate.
  
  
  CONCLUSIONS
  Male reproductive health may be threatened by environmental pollution, and it may be influence local population diathesis.
authors.affiliation: Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Histology and Embryology, Medical School of Ningbo Uni-versity, Ningbo, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.affiliation: Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Histology and Embryology, Medical School of Ningbo Uni-versity, Ningbo, China.
authors.forename: Qiaoyan
authors.initials: Q
authors.lastname: Gao
authors.affiliation: Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Histology and Embryology, Medical School of Ningbo Uni-versity, Ningbo, China.
authors.forename: Mingcai
authors.initials: M
authors.lastname: Li
authors.affiliation: Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Histology and Embryology, Medical School of Ningbo Uni-versity, Ningbo, China.
authors.forename: Mengyang
authors.initials: M
authors.lastname: Li
authors.affiliation: Zhejiang Provincial Key Laboratory of Pathophysiology, Department of Histology and Embryology, Medical School of Ningbo Uni-versity, Ningbo, China.
authors.forename: Xueming
authors.initials: X
authors.lastname: Gao
keywords: Cadmium; China; Chromium; Copper; Environmental pollution; Semen quality