Increase of oxidative stress in human sperm with lower motility

Shu Huei Kao, Hsiang Tai Chao, Haw Wen Chen, Yi-Sheng Huang, Tien Ling Liao, Yau Huei Wei

研究成果: 雜誌貢獻文章同行評審

159 引文 斯高帕斯(Scopus)

摘要

Objective: To investigate the causal role of oxidative-stress status on human sperm motility. Design: To demonstrate that sperm with higher oxidative damage have a lower antioxidant capacity. Setting: University hospital infertility center. Patient(s): Seventy-eight semen samples were obtained from 35 healthy donors who had normal semen characteristics and from 43 infertile or subfertile males. Intervention(s): The levels of oxidative damage (8-hydroxy-2′-deoxyguanosine [8-OHdG] and lipid peroxides) and antioxidants (retinol, α-tocopherol, ascorbate, and protein thiols) in the spermatozoa and/or seminal plasma were measured. Main Outcome Measure(s): We analyzed the specific content of 8-OHdG and lipid peroxides by using high-performance liquid chromatography (HPLC)-electrochemical detection and HPLC-fluorescence analysis, respectively. Retinol and α-tocopherol were analyzed by using an HPLC system, whereas ascorbate and protein thiols were determined by using spectrophotometry. 8-Hydroxy-2′-deoxyguanosine was visualized by immunofluorescent staining with an anti-8-OHdG antibody that was conjugated with fluorescein isothiocyanate conjugate. Lipid peroxides in spermatozoa were stained with a fluorescent dye, C11-BODIPY581/591. Result(s): Statistically significant negative correlations were revealed between sperm motility and 8-OHdG and between motility and lipid peroxides. Statistically significant positive correlations were found between sperm motility and the levels of retinol, α-tocopherol, ascorbate, and protein thiols of seminal plasma. 8-Hydroxy-2′-deoxyguanosine and lipid peroxides in spermatozoa were found to be present mostly in mitochondria. Conclusion(s): Oxidative stress and oxidative damage were increased significantly in spermatozoa with declined motility, and the antioxidant capacities in the spermatozoa and seminal plasma were lower in males who had infertility or subfertility.
原文英語
頁(從 - 到)1183-1190
頁數8
期刊Fertility and Sterility
89
發行號5
DOIs
出版狀態已發佈 - 五月 2008

ASJC Scopus subject areas

  • Obstetrics and Gynaecology

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