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Melatonin attenuates radiofrequency radiation (900 MHz)-induced oxidative stress, DNA damage and cell cycle arrest in germ cells of male Swiss albino mice

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Pandey N, Giri S · 2018

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Melatonin supplementation appeared to protect against radiofrequency radiation-induced reproductive damage in male mice by counteracting oxidative stress and supporting DNA repair processes.

Plain English Summary

Summary written for general audiences

This study examined the effects of 900 MHz radiofrequency radiation (RFR) exposure on male mouse germ cells and spermatogenesis, and whether melatonin supplementation could mitigate these effects. The researchers found that RFR exposure caused DNA damage, oxidative stress, cell cycle arrest, reduced sperm count, and sperm abnormalities, while melatonin supplementation prevented or reduced these adverse effects through antioxidant mechanisms and DNA repair pathway improvement.

Why This Matters

This animal study adds to existing research on potential biological effects of mobile phone radiofrequency exposure on male fertility. The protective effect of melatonin, an endogenous antioxidant, suggests oxidative stress as a potential mechanism of RFR-induced reproductive toxicity, though findings in animal models do not directly translate to human health outcomes.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Pandey N, Giri S (2018). Melatonin attenuates radiofrequency radiation (900 MHz)-induced oxidative stress, DNA damage and cell cycle arrest in germ cells of male Swiss albino mice.
Show BibTeX
@article{pandey_n_giri_s_ce3827,
  author = {Pandey N and Giri S},
  title = {Melatonin attenuates radiofrequency radiation (900 MHz)-induced oxidative stress, DNA damage and cell cycle arrest in germ cells of male Swiss albino mice},
  year = {2018},
  doi = {10.1038/s41467-018-03851-3},
  
}

Quick Questions About This Study

Plant roots grow longer root hairs when phosphate is scarce, increasing their surface area to better absorb this essential nutrient from soil. This adaptive response is controlled by the plant hormone auxin through specific genetic pathways.
Auxin hormone coordinates root hair elongation by activating specific transcription factors (ARF19, RSL2, RSL4) that promote hair growth. The hormone must be synthesized, transported from root tip to growth zone, then trigger cellular responses.
The TAA1 gene for auxin synthesis, AUX1 gene for auxin transport, and transcription factor genes ARF19, RSL2, and RSL4 are all critical. When any of these genes are disrupted, plants lose their ability to grow longer root hairs under phosphate stress.
Phosphate is immobile in soil, meaning it doesn't move easily to plant roots. Longer root hairs dramatically increase the root's surface area, allowing plants to reach and absorb more phosphate from a larger soil volume around each root.
Auxin is synthesized at the root tip then transported through lateral root cap and epidermal cells to the differentiation zone where root hairs grow. The AUX1 transporter protein is essential for moving auxin to the right cellular locations.