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Effects of 700MHz radiofrequency radiation (5G lower band) on the reproductive parameters of female Wistar rats

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Authors not listed · 2025

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700MHz 5G radiation caused ovarian oxidative stress and hormonal changes in female rats without affecting fertility cycles.

Plain English Summary

Summary written for general audiences

Researchers exposed female rats to 700MHz 5G radiation (4-6 hours daily for 10-60 days) and found no changes to reproductive cycles or DNA damage, but discovered increased testosterone levels and oxidative stress markers in ovaries. Long-term exposure caused tissue changes including cystic follicles and abnormal blood vessels in ovarian tissue.

Why This Matters

This study adds crucial data to our understanding of 5G's biological effects, specifically examining the 700MHz band used by major carriers like Verizon and T-Mobile. The finding that oxidative stress occurs without overt reproductive dysfunction is particularly significant because it suggests cellular damage may precede obvious health effects. What makes this research especially relevant is that 700MHz represents real-world 5G exposure levels. The testosterone elevation in female subjects deserves attention, as hormonal disruption can have cascading effects on reproductive health, fertility, and overall wellbeing. The fact that tissue changes only appeared with long-term exposure underscores why short-term safety studies may miss important health impacts.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 700 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 700 MHzPower lines50/60 HzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2025). Effects of 700MHz radiofrequency radiation (5G lower band) on the reproductive parameters of female Wistar rats.
Show BibTeX
@article{effects_of_700mhz_radiofrequency_radiation_5g_lower_band_on_the_reproductive_parameters_of_female_wistar_rats_ce2433,
  author = {Unknown},
  title = {Effects of 700MHz radiofrequency radiation (5G lower band) on the reproductive parameters of female Wistar rats},
  year = {2025},
  doi = {10.1016/j.reprotox.2025.108910},
  
}

Quick Questions About This Study

Yes, female rats exposed to 700MHz radiation showed significantly increased testosterone levels while estradiol and progesterone remained normal. This hormonal disruption occurred in both short-term and long-term exposure groups.
Long-term exposure (4 hours daily for 60 days) caused structural changes including cystic follicles and abnormal blood vessels in ovarian tissue. Short-term exposure showed no tissue changes.
Exposed ovaries showed elevated malondialdehyde levels and significant decreases in protective antioxidants including superoxide dismutase, total sulfhydryl content, and ferric reducing antioxidant power.
No DNA damage was detected using comet assay testing in either short-term or long-term exposure groups, suggesting genetic material remained intact despite other cellular changes.
Oxidative stress occurred in both 10-day and 60-day exposure periods, but structural tissue damage only appeared after 60 days of daily 4-hour exposure sessions.