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The effect of prenatal exposure to 900-MHz electromagnetic field on the 21-old-day rat testicle.

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Hancı H, Odacı E, Kaya H, Aliyazıcıoğlu Y, Turan I, Demir S, Colakoğlu S. · 2013

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Prenatal cell phone radiation exposure caused lasting reproductive damage in male rat offspring, suggesting pregnancy EMF exposure risks.

Plain English Summary

Summary written for general audiences

Researchers exposed pregnant rats to cell phone-level radiation (900 MHz) for one hour daily during late pregnancy, then examined the testicles of their male offspring at 21 days old. The exposed offspring showed significant damage to their developing reproductive organs, including structural abnormalities, increased cell death, and DNA damage that persisted weeks after birth. This suggests that EMF exposure during pregnancy may harm the reproductive development of male offspring.

Why This Matters

This study adds to growing evidence that EMF exposure during critical developmental windows can have lasting consequences. The 900 MHz frequency used here is identical to what many cell phones emit, and the power density (0.0265 W/m²) falls within typical exposure ranges from wireless devices. What makes this research particularly concerning is that the damage occurred from prenatal exposure but persisted into postnatal life, suggesting that developing reproductive systems may be especially vulnerable to EMF effects. The combination of structural damage, increased cell death, and DNA oxidation points to multiple pathways of harm. While this is animal research, it aligns with other studies showing reproductive effects from EMF exposure and raises important questions about wireless device use during pregnancy.

Exposure Details

Power Density
0.0265 µW/m²
Electric Field
10 V/m
Source/Device
900-MHz
Exposure Duration
1 h/day from 13th to 21st day of pregnancy

Exposure Context

This study used 0.0265 µW/m² for radio frequency:

This study used 10 V/m for electric fields:

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextA logarithmic scale showing exposure levels relative to Building Biology concern thresholds and regulatory limits.Study Exposure Level in ContextThis study: 0.0265 µW/m²Extreme Concern1,000 uW/m2FCC Limit10M uW/m2Effects observed in the No Concern range (Building Biology)FCC limit is 377,358,491x higher than this exposure level

Study Details

The aim of this study was to investigate the effect of exposure to a 900-MHz electromagnetic field (EMF) in the prenatal term on the 21-old-day rat testicle.

Pregnant rats were divided into control (CG) and EMF (EMFG) groups. EMFG was exposed to 900-MHz EMF ...

NEMFG rats exhibited irregularities in seminiferous tubule basal membrane and epithelium, immature g...

Cite This Study
Hancı H, Odacı E, Kaya H, Aliyazıcıoğlu Y, Turan I, Demir S, Colakoğlu S. (2013). The effect of prenatal exposure to 900-MHz electromagnetic field on the 21-old-day rat testicle. Reprod Toxicol. 42:203-209, 2013.
Show BibTeX
@article{h_2013_the_effect_of_prenatal_531,
  author = {Hancı H and Odacı E and Kaya H and Aliyazıcıoğlu Y and Turan I and Demir S and Colakoğlu S.},
  title = {The effect of prenatal exposure to 900-MHz electromagnetic field on the 21-old-day rat testicle.},
  year = {2013},
  
  url = {https://www.sciencedirect.com/science/article/abs/pii/S0890623813003523},
}

Quick Questions About This Study

Researchers exposed pregnant rats to cell phone-level radiation (900 MHz) for one hour daily during late pregnancy, then examined the testicles of their male offspring at 21 days old. The exposed offspring showed significant damage to their developing reproductive organs, including structural abnormalities, increased cell death, and DNA damage that persisted weeks after birth. This suggests that EMF exposure during pregnancy may harm the reproductive development of male offspring.