Department of Experimental Pathology and Tumor Biology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
Syst Biol Reprod Med. 2011 Aug;57(4):204-9. doi: 10.3109/19396368.2010.544839. Epub 2011 Jan 5.
In recent years concern has arisen whether carrying a cellular phone near the reproductive organs such as the testes may cause dysfunction and particularly decrease in sperm development and production, and thus fertility in men. The present study was performed to investigate the effects of a 1.95 GHz electromagnetic field on testicular function in male Sprague-Dawley rats. Five week old animals were divided into 3 groups of 24 each and a 1.95-GHz wide-band code division multiple access (W-CDMA) signal, which is used for the freedom of mobile multimedia access (FOMA), was employed for whole body exposure for 5 hours per day, 7 days a week for 5 weeks (the period from the age of 5 to 10 weeks, corresponding to reproductive maturation in the rat). Whole-body average specific absorption rates (SAR) for individuals were designed to be 0.4 and 0.08 W/kg respectively. The control group received sham exposure. There were no differences in body weight gain or weights of the testis, epididymis, seminal vesicles, and prostate among the groups. The number of sperm in the testis and epididymis were not decreased in the electromagnetic field (EMF) exposed groups, and, in fact, the testicular sperm count was significantly increased with the 0.4 SAR. Abnormalities of sperm motility or morphology and the histological appearance of seminiferous tubules, including the stage of the spermatogenic cycle, were not observed. Thus, under the present exposure conditions, no testicular toxicity was evident.
近年来，人们越来越关注手机等电子设备放在生殖器官附近（如睾丸）是否会导致功能障碍，特别是精子发育和产生减少，从而影响男性的生育能力。本研究旨在探讨 1.95GHz 电磁场对雄性 Sprague-Dawley 大鼠睾丸功能的影响。将 5 周龄的动物分为 3 组，每组 24 只，使用 1.95GHz 宽带码分多址（W-CDMA）信号（用于自由移动多媒体接入（FOMA））进行全身暴露，每天 5 小时，每周 7 天，共 5 周（从 5 周龄到 10 周龄，相当于大鼠的生殖成熟阶段）。个人的全身平均比吸收率（SAR）分别设计为 0.4 和 0.08 W/kg。对照组接受假暴露。各组间体重增加或睾丸、附睾、精囊和前列腺重量无差异。睾丸和附睾中的精子数量在电磁场（EMF）暴露组中没有减少，实际上，0.4SAR 组的睾丸精子计数显著增加。精子运动或形态异常以及曲细精管的组织学外观，包括生精周期阶段，均未观察到。因此，在目前的暴露条件下，没有明显的睾丸毒性。
