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Neurobehavioural Changes and Brain Oxidative Stress Induced by Acute Exposure to GSM900 Mobile Phone Radiations in Zebrafish (Danio rerio).

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Nirwane A, Sridhar V, Majumdar A · 2016

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Cell phone radiation at everyday exposure levels caused anxiety, learning problems, and brain oxidative stress in zebrafish after just two weeks.

Plain English Summary

Summary written for general audiences

Researchers exposed zebrafish to cell phone radiation (GSM 900 MHz) for 14 days at human-equivalent levels. The fish developed increased anxiety, reduced social behavior, and impaired learning, plus brain oxidative stress indicating cellular damage. This suggests everyday cell phone radiation may affect brain function.

Why This Matters

This research is particularly significant because it demonstrates measurable neurological effects at SAR levels (1.34 W/kg) that fall within typical cell phone exposure ranges for humans. The study's use of zebrafish is valuable because these organisms share fundamental neurological pathways with humans, making the behavioral changes observed highly relevant to human health concerns. The combination of behavioral impairments and oxidative stress markers suggests that cell phone radiation can simultaneously affect both brain function and cellular health. What makes this study especially compelling is that the researchers also tested melatonin as a protective agent and found it could reverse many of the radiation-induced changes. This points to potential biological mechanisms and protective strategies, while reinforcing that the observed effects were indeed caused by the EMF exposure rather than other factors.

Exposure Details

SAR
1.34 W/kg
Source/Device
GSM900MP
Exposure Duration
1 hr for 14 days

Exposure Context

This study used 1.34 W/kg for SAR (device absorption):

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 ContextStudy Exposure Level in ContextThis study: 1.34 W/kgExtreme Concern - 0.1 W/kgFCC Limit - 1.6 W/kgEffects observed in the Extreme Concern rangeFCC limit is 1x higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

Herein, we evaluated the impact of GSM900MP (GSM900MP) radiation exposure daily for 1 hr for 14 days with the SAR of 1.34W/Kg on neurobehavioral and oxidative stress parameters in zebrafish.

Our study revealed that, GSM900MP radiation exposure, significantly decreased time spent near social...

This study traced GSM900MP radiation exposure induced neurobehavioral aberrations and alterations in brain oxidative status. Furthermore, MT proved to be a promising therapeutic candidate in ameliorating such outcomes in zebrafish.

Cite This Study
Nirwane A, Sridhar V, Majumdar A (2016). Neurobehavioural Changes and Brain Oxidative Stress Induced by Acute Exposure to GSM900 Mobile Phone Radiations in Zebrafish (Danio rerio). Toxicol Res. 2016 Apr;32(2):123-32. doi: 10.5487/TR.2016.32.2.123. Epub 2016 Apr 30.
Show BibTeX
@article{a_2016_neurobehavioural_changes_and_brain_1227,
  author = {Nirwane A and Sridhar V and Majumdar A},
  title = {Neurobehavioural Changes and Brain Oxidative Stress Induced by Acute Exposure to GSM900 Mobile Phone Radiations in Zebrafish (Danio rerio).},
  year = {2016},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/27123163/},
}
PubMed: 27123163

Cited By (20 papers)

Quick Questions About This Study

Yes, 14 days of GSM 900 MHz cell phone radiation significantly reduced zebrafish social interaction, with fish spending less time near social stimulus zones. This 2016 study suggests that everyday levels of cell phone radiation may disrupt normal social behaviors in biological systems.
Research shows GSM 900 MHz radiation caused anxiety-like behaviors in zebrafish, including increased time spent in tank bottoms, more freezing episodes, and reduced exploration of upper tank areas. These behavioral changes mirror anxiety responses in animal models.
Zebrafish exposed to GSM 900 MHz radiation for 14 days showed impaired learning, spending significantly less time exploring novel environments in Y-maze tests. This suggests cell phone radiation may interfere with cognitive processes and memory formation.
GSM 900 MHz radiation decreased protective brain enzymes (SOD and catalase) while increasing oxidative damage markers like lipid peroxidation. These changes indicate cellular stress and compromised antioxidant defenses in brain tissue after radiation exposure.
Yes, melatonin treatment significantly reversed both behavioral problems and brain oxidative damage caused by GSM 900 MHz radiation in zebrafish. This suggests melatonin may offer protective benefits against cell phone radiation's neurological effects.