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Study of the effects of 0.15 terahertz radiation on genome integrity of adult fibroblasts

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Authors not listed · 2018

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Terahertz radiation at 0.15 THz disrupts chromosome distribution in human skin cells without breaking DNA directly.

Plain English Summary

Summary written for general audiences

Researchers exposed adult human skin cells to 0.15 terahertz radiation and found it caused chromosomal abnormalities without directly breaking DNA. The study revealed that terahertz waves can disrupt normal chromosome distribution during cell division, potentially leading to genetic instability.

Why This Matters

This study reveals a concerning mechanism by which terahertz radiation affects human cells. While the researchers found no direct DNA breakage, they discovered something potentially more troubling: the radiation disrupted normal chromosome distribution during cell division, creating cells with abnormal chromosome numbers. This type of genetic instability, called aneuploidy, is associated with cancer development and cellular dysfunction. What makes this particularly relevant is that terahertz technology is rapidly expanding into security scanners, medical imaging, and wireless communications. The reality is that we're deploying these technologies faster than we're understanding their biological effects. The finding that adult skin cells respond differently than fetal cells also highlights how EMF effects can vary across different cell types and life stages, making blanket safety assumptions problematic.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 0.15 THz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 0.15 THzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2018). Study of the effects of 0.15 terahertz radiation on genome integrity of adult fibroblasts.
Show BibTeX
@article{study_of_the_effects_of_015_terahertz_radiation_on_genome_integrity_of_adult_fibroblasts_ce2761,
  author = {Unknown},
  title = {Study of the effects of 0.15 terahertz radiation on genome integrity of adult fibroblasts},
  year = {2018},
  doi = {10.1002/em.22192},
  
}
DOI: 10.1002/em.22192PubMed: 29602275

Quick Questions About This Study

No, the study found that 0.15 THz radiation did not cause direct DNA breaks in adult human dermal fibroblasts. However, it did cause chromosomal abnormalities through a different mechanism affecting chromosome distribution during cell division.
Aneuploidy occurs when cells have abnormal numbers of chromosomes due to improper separation during division. The study found 0.15 THz radiation increased this condition, though researchers are still investigating the exact biophysical mechanisms responsible.
The researchers' previous work showed fetal cells experienced DNA damage from THz radiation, while adult dermal fibroblasts showed chromosomal disruption but no DNA breaks, suggesting different vulnerability patterns between cell types.
The study specifically mentions concern for professional and nonprofessional categories exposed to THz radiation on adult dermal tissues, though specific occupational exposure levels and health outcomes weren't detailed in this cellular research.
Yes, the study found increased centromere-positive micronuclei frequencies after 0.15 THz exposure, indicating chromosomal nondisjunction events rather than DNA breakage. This suggests the radiation disrupts chromosome movement during cell division.