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題 名 | Seminal Plasma Zinc Levels and Sperm Motion Characteristics in Infertile Samples=不孕症男性精液中鋅含量與精蟲活動特性的相關性 |
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作 者 | 林易奇; 張廷彰; 曾雅容; 林雅苓; 黃富仁; 龔福財; 張旭陽; | 書刊名 | 長庚醫學 |
卷 期 | 23:5 2000.05[民89.05] |
頁 次 | 頁260-266 |
分類號 | 417.125 |
關鍵詞 | 電腦輔助精液分析; 精液分析; 鋅; Computer aided sperm analysis; Semen analysis; Zinc; |
語 文 | 英文(English) |
英文摘要 | Background. Zinc (Zn) in seminal plasma stabilizes the cell membrane and nuclear chromatin of spermatozoa. It may also have an antibacterial function. However, extremely high concentrations of Zn (10 to 100× the normal range) may inhibit sperm motility and the function of the mannose receptor on the sperm head. In this study, we analyzed the correlation between Zn levels in seminal plasma and the characteristics of semen as measured by conventional and computer aided sperm analysis (CASA). Methods. One hundred fifteen infertile couples were recruited for conventional semen analysis and CASA from December 1995 through January 1996, and Zn levels in semen samples were determined by flame atomic absorption spectroscopy (AAS). Results. A good correlation in a positive direction (r=0.73, p=0.0001) was noted between the total amount of Zn per ejaculate and the Zn concentration. The Zn concentration in seminal plasma was negatively correlated with the seminal pH (r=- 0.35, p= 0.0081). There was no significant correlation between the total amount of Zn per ejaculate and sperm characteristics, including sperm count, motility (% sperm count), progressive motility (% motility), rapid motility (% motility), average path velocity (VAP, μm/s), straight-line velocity (VSL, μm/s), curvilinear velocity (VCL, μm/s), amplitude of lateral head displacement (ALH, μm), beat/cross frequency (BCF, beats/s), straightness (STR), and linearity (LIN). There was also no significant correlation between the Zn concentration in seminal plasma and the above sperm characteristics. Conclusion. The characteristics of semen as determined by conventional semen analysis or CASA bore no correlation with total seminal Zn amount or Zn concentrations in the ejaculates. Routine determination of the Zn concentration in seminal plasma offers no advantages in infertility work-ups. |
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