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Exposure to cell phone radiation up-regulates apoptosis genes in primary cultures of neurons and astrocytes

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Zhao TY, Zou SP, Knapp PE. · 2007

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Primary neurons and astrocytes exposed to GSM cell phone radiation at 1900 MHz for 2 hours showed up-regulation of apoptosis-related genes.

Plain English Summary

Summary written for general audiences

Researchers exposed primary cultured neurons and astrocytes to GSM cell phone emissions at 1900 MHz for 2 hours. Neurons showed up-regulation of caspase-2, caspase-6, and Asc genes in both 'on' and 'stand-by' modes. Astrocytes showed up-regulation of the same genes only in 'on' mode and also up-regulated the Bax gene.

Why This Matters

The researchers concluded that even short-term exposure can up-regulate apoptotic pathway elements in brain-derived cells, with neurons appearing more sensitive than astrocytes. The up-regulation was specific, as caspase-9 and Bax in neurons did not show increased expression.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 1.90 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 1.90 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study. The study examined exposure from: 1900 MHz Duration: 2 h

Study Details

This study investigated whether expression of genes related to cell death pathways are dysregulated in primary cultured neurons and astrocytes by exposure to a working Global System for Mobile Communication (GSM) cell phone rated at a frequency of 1900 MHz.

Primary cultures were exposed to cell phone emissions for 2 h. We used array analysis and real-time ...

Up-regulation occurred in both “on” and “stand-by” modes in neurons, but only in “on” mode in astroc...

The results show that even relatively short-term exposure to cell phone radiofrequency emissions can up-regulate elements of apoptotic pathways in cells derived from the brain, and that neurons appear to be more sensitive to this effect than astrocytes.

Cite This Study
Zhao TY, Zou SP, Knapp PE. (2007). Exposure to cell phone radiation up-regulates apoptosis genes in primary cultures of neurons and astrocytes Neurosci Lett. 412(1):34-38, 2007.
Show BibTeX
@article{ty_2007_exposure_to_cell_phone_1551,
  author = {Zhao TY and Zou SP and Knapp PE.},
  title = {Exposure to cell phone radiation up-regulates apoptosis genes in primary cultures of neurons and astrocytes},
  year = {2007},
  
  url = {https://www.sciencedirect.com/science/article/abs/pii/S0304394006010056},
}

Quick Questions About This Study

The study used primary cultured neurons and astrocytes.
Primary cultures were exposed to GSM cell phone emissions at 1900 MHz for 2 hours.
Caspase-2, caspase-6, and Asc genes were up-regulated in both neurons and astrocytes, while Bax was up-regulated only in astrocytes.
Neurons showed up-regulation in both 'on' and 'stand-by' modes, whereas astrocytes responded only in 'on' mode.
No, caspase-9 was not up-regulated in either cell type, and Bax was not up-regulated in neurons.