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Reproductive Health

Effects of 1950 MHz W-CDMA-like signal on human spermatozoa.

No Effects Found

Nakatani-Enomoto S, Okutsu M, Suzuki S, Suganuma R, Groiss SJ, Kadowaki S, Enomoto H, Fujimori K, Ugawa Y · 2016

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One hour of cell phone radiation showed no immediate sperm damage in controlled lab conditions, but longer-term real-world effects remain unclear.

Plain English Summary

Summary written for general audiences

Researchers exposed human sperm samples to cell phone-like radiation (1950 MHz) for one hour at two different power levels to see if it affected sperm movement or caused DNA damage. They found no significant changes in sperm motility, movement patterns, or DNA damage markers compared to unexposed samples. This study suggests that short-term exposure to this type of radiation may not immediately harm sperm function under controlled laboratory conditions.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 1.95 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 1.95 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 1950 MHz Duration: 1h

Study Details

In this study, we analyzed the effects on human spermatozoa (sperm motility and kinetic variables) induced by 1 h of exposure to 1950 MHz Wideband Code Division Multiple Access (W-CDMA)-like EMW with specific absorption rates of either 2.0 or 6.0 W/kg, using a computer-assisted sperm analyzer system.

We also measured the percentage of 8-hydroxy-2′-deoxyguanosine (8-OHdG) positive spermatozoa with fl...

No significant differences were observed between the EMW exposure and the sham exposure in sperm mot...

We conclude that W-CDMA-like exposure for 1 h under temperature-controlled conditions has no detectable effect on normal human spermatozoa. Differences in exposure conditions, humidity, temperature control, baseline sperm characteristics, and age of donors may explain inconsistency of our results with several previous studies.

Cite This Study
Nakatani-Enomoto S, Okutsu M, Suzuki S, Suganuma R, Groiss SJ, Kadowaki S, Enomoto H, Fujimori K, Ugawa Y (2016). Effects of 1950 MHz W-CDMA-like signal on human spermatozoa. Bioelectromagnetics. 2016 Jun 11. doi: 10.1002/bem.21985.
Show BibTeX
@article{s_2016_effects_of_1950_mhz_3265,
  author = {Nakatani-Enomoto S and Okutsu M and Suzuki S and Suganuma R and Groiss SJ and Kadowaki S and Enomoto H and Fujimori K and Ugawa Y},
  title = {Effects of 1950 MHz W-CDMA-like signal on human spermatozoa.},
  year = {2016},
  doi = {10.1002/bem.21985},
  url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/bem.21985},
}
DOI: 10.1002/bem.21985

Cited By (9 papers)

Quick Questions About This Study

No, researchers found no significant changes in sperm motility or movement patterns after exposing human sperm samples to 1950 MHz W-CDMA-like radiation for one hour. The study tested two different power levels under controlled laboratory conditions and found no detectable effects on normal human sperm function.
This study found no evidence of DNA damage from 1950 MHz radiation exposure. Researchers measured 8-OHdG levels, a marker of oxidative DNA damage, in human sperm samples after one hour of exposure and found no significant differences compared to unexposed control samples.
Researchers suggest that differences in exposure conditions, humidity control, temperature regulation, baseline sperm characteristics, and donor age may explain why studies show inconsistent results. This 2016 study used strict temperature controls and found no effects, unlike some previous research.
Human sperm samples were exposed to 1950 MHz W-CDMA-like radiation for exactly one hour in this controlled laboratory study. Researchers tested two different power levels during this exposure period while maintaining strict temperature controls to ensure accurate results.
Yes, temperature control appears crucial for accurate results. This study specifically used temperature-controlled conditions during 1950 MHz exposure testing and found no sperm damage, suggesting that uncontrolled heating in other studies might have caused misleading results about radiation effects.