Impact of in vitro exposure to 5G-modulated 3.5 GHz fields on oxidative stress and DNA repair in skin cells
This in vitro study tested whether 5G-modulated 3.5 GHz RF-EMF exposure affects oxidative stress and DNA repair in human skin cells. Under acute exposure conditions (up to 24–48h) at SARs up to 4 W/kg, the authors report no significant changes in ROS markers, no adaptive response to oxidative challenge, and no impairment of UV-B–related CPD repair via nucleotide excision repair. The authors note that acute in vitro results may not directly generalize to chronic or real-life exposures.
Key points
- Human fibroblasts were exposed to 3.5 GHz 5G-modulated RF-EMF at SAR 0.08 and 4 W/kg for 24 hours to assess oxidative stress.
- BRET-based biosensors in cytoplasm and mitochondria showed no significant RF-EMF–related changes in baseline ROS.
- RF-EMF exposure did not enhance oxidative effects of chemical ROS inducers (H2O2, Kp372-1, Antimycin A).
- Pre-exposure to RF-EMF did not produce an adaptive response to a subsequent arsenic trioxide oxidative challenge.
- In HaCaT keratinocytes, RF-EMF combined with UV-B did not alter CPD repair kinetics or efficiency via the NER pathway.
- The conclusions are limited to acute in vitro exposure durations and may not extend to long-term exposures.
Referenced studies & papers
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AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
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