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GSM 900 MHz Microwave Radiation-Induced Alterations of Insulin Level and Histopathological Changes of Liver and Pancreas in Rat.

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Mortazavi SM, Owji SM, Shojaei-Fard MB, Ghader-Panah M, Mortazavi SA, Tavakoli-Golpayegani A, Haghani M, Taeb S, Shokrpour N, Koohi O. · 2016

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Cell phone radiation at legal SAR limits damaged liver and pancreatic cells in rats within just one week of exposure.

Plain English Summary

Summary written for general audiences

Researchers exposed rats to cell phone radiation (GSM 900 MHz) for either 3 or 6 hours daily over 7 days to study effects on insulin production and organ health. While insulin levels remained unchanged, the radiation caused inflammatory damage in the liver and harmed insulin-producing cells in the pancreas, with longer exposure times producing more severe damage.

Why This Matters

This study reveals a concerning pattern: even short-term exposure to cell phone radiation can damage critical metabolic organs. The 2.0 W/kg exposure level used here is at the current SAR safety limit for mobile devices, meaning the liver and pancreatic damage occurred at radiation levels your phone is legally allowed to emit. What makes this particularly significant is that the researchers found dose-dependent effects - longer daily exposure (6 hours versus 3 hours) produced more severe organ damage. The science demonstrates that our current safety standards may not adequately protect these vital organs that regulate blood sugar and detoxification. While this was a short 7-day study, it raises important questions about what chronic, years-long exposure might do to liver and pancreatic function in humans.

Exposure Details

SAR
2 W/kg
Source/Device
GSM 900 MHz
Exposure Duration
6 hours per day for 7 days

Exposure Context

This study used 2 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: 2 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

This study is an attempt to investigate the effects of radiofrequency (RF) radiation produced by GSM mobile phones on the insulin release in rats.

Forty two female adult Sprague Dawley rats were randomly divided into 4 groups. Group1 were exposed ...

Our results showed that RF radiations emitted from mobile phone could not alter insulin release in r...

Cite This Study
Mortazavi SM, Owji SM, Shojaei-Fard MB, Ghader-Panah M, Mortazavi SA, Tavakoli-Golpayegani A, Haghani M, Taeb S, Shokrpour N, Koohi O. (2016). GSM 900 MHz Microwave Radiation-Induced Alterations of Insulin Level and Histopathological Changes of Liver and Pancreas in Rat. J Biomed Phys Eng. 6(4):235-242, 2016.
Show BibTeX
@article{sm_2016_gsm_900_mhz_microwave_1211,
  author = {Mortazavi SM and Owji SM and Shojaei-Fard MB and Ghader-Panah M and Mortazavi SA and Tavakoli-Golpayegani A and Haghani M and Taeb S and Shokrpour N and Koohi O.},
  title = {GSM 900 MHz Microwave Radiation-Induced Alterations of Insulin Level and Histopathological Changes of Liver and Pancreas in Rat.},
  year = {2016},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/28144593/},
}
PubMed: 28144593

Cited By (24 papers)

Quick Questions About This Study

A 2016 study found that GSM 900 MHz radiation from cell phones did not alter insulin levels in rats, even after 3-6 hours of daily exposure for seven days. However, the radiation did cause inflammatory damage to liver tissue and harm to pancreatic insulin-producing cells.
Yes, research shows GSM 900 MHz cell phone radiation can damage pancreatic islet of Langerhans cells, which produce insulin. Rats exposed for 3-6 hours daily showed cellular damage that worsened with longer exposure duration, though actual insulin production remained unchanged.
Cell phone radiation at GSM 900 MHz caused mild to severe inflammatory changes in rat liver portal spaces within just seven days of exposure. The liver damage was directly linked to exposure duration, with 6-hour daily sessions causing more severe effects than 3-hour exposures.
Research demonstrates that even 3 hours of daily GSM 900 MHz cell phone radiation exposure for one week causes measurable liver inflammation and pancreatic cell damage in rats. Six-hour daily exposures produced more severe tissue damage than shorter exposure periods.
GSM 900 MHz cell phone radiation causes inflammatory damage to liver portal spaces and harm to pancreatic islet cells that produce insulin. A 2016 rat study found this organ damage occurs within one week of daily exposure, with severity increasing based on exposure duration.