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De Amicis A, Sanctis SD, Cristofaro SD, Franchini V, Lista F, Regalbuto E, Giovenale E, Gallerano GP, Nenzi P, Bei R, Fantini M, Benvenuto M, Masuelli L, Coluzzi E, Cicia C, Sgura A

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Authors not listed · 2015

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Terahertz radiation causes chromosome separation errors in human cells without breaking DNA directly.

Plain English Summary

Summary written for general audiences

Researchers exposed human fetal cells to terahertz (THz) radiation at 0.1-0.15 THz frequencies and found chromosome damage without DNA breaks. The study revealed increased micronuclei formation and abnormal cell structure changes, suggesting THz radiation can cause chromosomes to separate incorrectly during cell division.

Why This Matters

This study adds crucial evidence to the sparse research on terahertz radiation effects, showing that even frequencies considered 'non-ionizing' can disrupt fundamental cellular processes. The finding that THz radiation causes chromosomal malsegregation without breaking DNA directly challenges assumptions about how EMF damages cells. What makes this particularly concerning is that THz technology is rapidly expanding into security scanners, medical imaging, and telecommunications. The researchers used human fetal fibroblasts, which are especially sensitive to damage, but their findings suggest we need much more safety research before widespread THz deployment. The fact that this radiation altered cellular structures and chromosome behavior indicates biological effects occur at levels previously assumed safe.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 0.1-0.15 THz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 0.1-0.15 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 (2015). De Amicis A, Sanctis SD, Cristofaro SD, Franchini V, Lista F, Regalbuto E, Giovenale E, Gallerano GP, Nenzi P, Bei R, Fantini M, Benvenuto M, Masuelli L, Coluzzi E, Cicia C, Sgura A.
Show BibTeX
@article{de_amicis_a_sanctis_sd_cristofaro_sd_franchini_v_lista_f_regalbuto_e_giovenale_e_gallerano_gp_nenzi_p_bei_r_fantini_m_benvenuto_m_masuelli_l_coluzzi_e_cicia_c_sgura_a_ce2735,
  author = {Unknown},
  title = {De Amicis A, Sanctis SD, Cristofaro SD, Franchini V, Lista F, Regalbuto E, Giovenale E, Gallerano GP, Nenzi P, Bei R, Fantini M, Benvenuto M, Masuelli L, Coluzzi E, Cicia C, Sgura A},
  year = {2015},
  doi = {10.1016/j.mrgentox.2015.06.003},
  
}
DOI: 10.1016/j.mrgentox.2015.06.003PubMed: 26520385

Quick Questions About This Study

Yes, this study found that 0.1-0.15 THz radiation increased micronuclei formation and caused chromosomes to separate incorrectly during cell division in human fetal fibroblasts, indicating aneugenic effects rather than direct DNA breaks.
The study observed increased actin polymerization after THz irradiation, suggesting abnormal assembly of spindle proteins that could lead to chromosomal malsegregation during cell division, affecting the cell's structural framework.
No, researchers found no DNA damage using comet assays or H2AX phosphorylation tests. Instead, THz radiation caused aneugenic effects, disrupting chromosome separation without breaking DNA strands directly.
The study used human fetal fibroblasts specifically because they're sensitive to cellular damage. The observed chromosome separation errors and structural changes suggest these developing cells are vulnerable to THz radiation effects.
THz radiation (0.1-0.15 THz) caused chromosome malsegregation without DNA breaks, unlike ionizing radiation. This suggests a unique mechanism of cellular damage that affects chromosome behavior rather than directly damaging genetic material.