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Neurobehavioural Changes and Brain Oxidative Stress Induced by Acute Exposure to GSM 900 Mobile Phone Radiations in Zebrafish (Danio rerio).

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Nirwane A, Sridhar V, Majumdar A · 2016

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Daily cell phone radiation exposure impaired learning and increased anxiety in zebrafish at SAR levels typical of phone calls.

Plain English Summary

Summary written for general audiences

Researchers exposed zebrafish to cell phone radiation (900 MHz) for one hour daily over two weeks at levels similar to what phones emit during calls. The exposed fish showed increased anxiety-like behaviors, impaired learning and social interaction, plus brain damage from oxidative stress (cellular damage from harmful molecules). This suggests that even short daily exposures to mobile phone radiation can affect brain function and behavior.

Why This Matters

This zebrafish study adds important evidence to concerns about mobile phone radiation's effects on the developing brain. The SAR level used (1.34 W/kg) falls within the range of typical cell phone emissions during calls, making these findings directly relevant to human exposure. What's particularly significant is that the researchers observed both behavioral changes and the underlying biological mechanism - oxidative stress damage in brain tissue. Zebrafish are widely used in neuroscience research because their brain development and neurochemistry closely parallel humans. The fact that just one hour of daily exposure over two weeks produced measurable anxiety, learning impairment, and social behavior changes should give us pause about our constant proximity to these devices. The study also found that melatonin treatment could reverse these effects, suggesting the damage may be preventable with proper antioxidant support.

Exposure Details

SAR
1.34 W/kg
Source/Device
900 MHz
Exposure Duration
1 hour/day 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

we evaluated the impact of GSM900MP (GSM900MP) radiation exposure daily for 1 hr for 14 days with the SAR of 1.34 W/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 GSM 900 Mobile Phone Radiations in Zebrafish (Danio rerio). Toxicol Res. 32(2):123-132 (2016).
Show BibTeX
@article{a_2016_neurobehavioural_changes_and_brain_156,
  author = {Nirwane A and Sridhar V and Majumdar A},
  title = {Neurobehavioural Changes and Brain Oxidative Stress Induced by Acute Exposure to GSM 900 Mobile Phone Radiations in Zebrafish (Danio rerio).},
  year = {2016},
  doi = {10.5487/TR.2016.32.2.123},
  url = {https://link.springer.com/article/10.5487/TR.2016.32.2.123},
}
DOI: 10.5487/TR.2016.32.2.123

Cited By (20 papers)

Quick Questions About This Study

Yes, zebrafish exposed to 900 MHz GSM radiation for one hour daily over two weeks showed significant anxiety-like behaviors. The fish spent more time in the bottom half of test tanks, had more freezing episodes, and traveled less distance compared to unexposed controls.
Research shows zebrafish exposed to 900 MHz GSM radiation for one hour daily significantly decreased their time spent near social stimulus zones during interaction tests. This suggests daily cell phone radiation exposure can impair normal social behaviors in aquatic animals.
Zebrafish exposed to 900 MHz GSM radiation for one hour daily over two weeks spent significantly less time exploring novel areas in Y-Maze tests. This behavior indicates impaired learning and memory formation compared to unexposed control fish.
Daily 900 MHz GSM radiation exposure in zebrafish decreased protective antioxidant enzymes (SOD and catalase) while increasing harmful lipid peroxidation and glutathione levels. This pattern indicates significant oxidative stress and cellular damage in brain tissue.
Yes, melatonin treatment significantly reversed the anxiety, learning impairments, social behavior problems, and brain oxidative damage caused by 900 MHz GSM radiation exposure in zebrafish. This suggests melatonin may offer protective benefits against radiation-induced neurological effects.