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Brain & Nervous System

Exposure to 1950-MHz TD-SCDMA Electromagnetic Fields Affects the Apoptosis of Astrocytes via Caspase-3-Dependent Pathway.

No Effects Found

Liu YX, Tai JL, Li GQ, Zhang ZW, Xue JH, Liu HS, Zhu H, Cheng JD, Liu YL, Li AM, Zhang Y. · 2012

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Cell phone radiation at 1950 MHz damaged brain support cells and triggered cell death after 48 hours of exposure.

Plain English Summary

Summary written for general audiences

Chinese researchers exposed brain cells (astrocytes) to cell phone radiation at 1950 MHz for up to 48 hours and found that prolonged exposure damaged the cells' power centers (mitochondria) and triggered programmed cell death. While the radiation didn't promote tumor formation, it caused significant cellular damage through a specific biological pathway involving proteins that control cell death. This suggests that continuous exposure to cell phone frequencies may harm healthy brain cells even when it doesn't directly cause cancer.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 1.95 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 1.95 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 1950-MHz Duration: 12, 24 and 48 h

Study Details

This study investigated whether EMF radiation would alter the biology of glial cells and act as a tumor-promoting agent.

We exposed rat astrocytes and C6 glioma cells to 1950-MHz TD-SCDMA for 12, 24 and 48 h respectively,...

A 48 h of exposure damaged the mitochondria and induced significant apoptosis of astrocytes. Moreove...

herefore, our results implied that exposure to the EMF of 1950-MHz TD-SCDMA may not promote the tumor formation, but continuous exposure damaged the mitochondria of astrocytes and induce apoptosis through a caspase-3-dependent pathway with the involvement of bax and bcl-2.

Cite This Study
Liu YX, Tai JL, Li GQ, Zhang ZW, Xue JH, Liu HS, Zhu H, Cheng JD, Liu YL, Li AM, Zhang Y. (2012). Exposure to 1950-MHz TD-SCDMA Electromagnetic Fields Affects the Apoptosis of Astrocytes via Caspase-3-Dependent Pathway. PLoS One. 7(8):e42332, 2012.
Show BibTeX
@article{yx_2012_exposure_to_1950mhz_tdscdma_3204,
  author = {Liu YX and Tai JL and Li GQ and Zhang ZW and Xue JH and Liu HS and Zhu H and Cheng JD and Liu YL and Li AM and Zhang Y.},
  title = {Exposure to 1950-MHz TD-SCDMA Electromagnetic Fields Affects the Apoptosis of Astrocytes via Caspase-3-Dependent Pathway.},
  year = {2012},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/22870319/},
}
PubMed: 22870319

Cited By (77 papers)

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Quick Questions About This Study

Yes, a 2012 Chinese study found that 48 hours of exposure to 1950 MHz TD-SCDMA radiation damaged mitochondria and triggered programmed cell death in healthy brain astrocytes. The radiation activated caspase-3 proteins that control cell death, causing significant cellular damage even without promoting tumor formation.
Research shows that 1950 MHz TD-SCDMA radiation damaged mitochondria in brain astrocytes after 48 hours of continuous exposure. The study found significant mitochondrial damage accompanied by increased cell death, suggesting that prolonged exposure to these cell phone frequencies harms cellular powerhouses.
No, a 2012 study found that 1950 MHz TD-SCDMA radiation did not promote tumor formation in brain astrocytes. While the radiation caused significant cell death and mitochondrial damage after 48 hours of exposure, tumorigenicity tests showed no tumor development in exposed cells.
The 2012 study found that 1950 MHz TD-SCDMA radiation activated the caspase-3-dependent cell death pathway in brain astrocytes. After 48 hours of exposure, researchers observed increased caspase-3 expression along with elevated bax proteins and reduced bcl-2 levels, indicating programmed cell death activation.
After 48 hours of 1950 MHz TD-SCDMA exposure, brain astrocytes experienced significant apoptosis (programmed cell death) and mitochondrial damage. The study found increased expression of death-promoting proteins while protective proteins decreased, though the cells did not develop into tumors.