Chao Wei, Yucong Zhang, Rui Li, Shaogang Wang, Tao Wang, Jihong Liu, Zhuo Liu, Kejia Wang, Jinsong Liu, and Xiaming Liu
To date, there has been limited evidence to reveal the effect of terahertz radiation on sperm. In this study, semen samples were collected from males who had just finished a prepregnancy computer-assisted semen analysis (CASA). The motility, intracellular concentration of free Ca2+and DNA integrity of sperm with or without terahertz (0.1 to 3 THz) irradiation at 60 µW/cm2were assessed. We found that terahertz irradiation for more than 5 minutes significantly increased the progressive motility percentage of sperm, and the DNA integrity was not changed. We also found that the effect of terahertz irradiation on spermatozoa was weakened by reducing the concentration of extracellular calcium ions or by blocking calcium channels.
© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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