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Effects on rat testis of 1.95-GHz W-CDMA for IMT-2000 cellular phones.

No Effects Found

Imai N, Kawabe M, Hikage T, Nojima T, Takahashi S, Shirai T. · 2011

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This rat study found no testicular harm from cell phone radiation at 0.4 W/kg SAR, contradicting some fertility research.

Plain English Summary

Summary written for general audiences

Japanese researchers exposed male rats to cell phone radiation (1.95 GHz W-CDMA signal) for 5 hours daily over 5 weeks during their reproductive development. They found no harmful effects on sperm production, quality, or testicular health at either exposure level tested (0.4 and 0.08 W/kg SAR). In fact, sperm count actually increased slightly in the higher exposure group, though this may not be biologically meaningful.

Study Details

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 m...

There were no differences in body weight gain or weights of the testis, epididymis, seminal vesicles...

Thus, under the present exposure conditions, no testicular toxicity was evident.

Cite This Study
Imai N, Kawabe M, Hikage T, Nojima T, Takahashi S, Shirai T. (2011). Effects on rat testis of 1.95-GHz W-CDMA for IMT-2000 cellular phones. Syst Biol Reprod Med. 57(4):204-209,2011.
Show BibTeX
@article{n_2011_effects_on_rat_testis_3098,
  author = {Imai N and Kawabe M and Hikage T and Nojima T and Takahashi S and Shirai T.},
  title = {Effects on rat testis of 1.95-GHz W-CDMA for IMT-2000 cellular phones.},
  year = {2011},
  doi = {10.3109/19396368.2010.544839},
  url = {https://www.tandfonline.com/doi/full/10.3109/19396368.2010.544839},
}

Quick Questions About This Study

Japanese researchers exposed male rats to cell phone radiation (1.95 GHz W-CDMA signal) for 5 hours daily over 5 weeks during their reproductive development. They found no harmful effects on sperm production, quality, or testicular health at either exposure level tested (0.4 and 0.08 W/kg SAR). In fact, sperm count actually increased slightly in the higher exposure group, though this may not be biologically meaningful.