Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Low-power millimeter wave radiations do not alter stress-sensitive gene expression of chaperone proteins
No Effects Found
Authors not listed · 2007
60 GHz millimeter waves showed no cellular stress response in brain cells during short-term laboratory exposure.
Plain English Summary
Summary written for general audiences
Scientists exposed human brain cells to 60 GHz millimeter wave radiation (the frequency planned for future wireless networks) for up to 33 hours at two different power levels. They found no changes in stress-response genes or protective proteins that cells normally produce when damaged.
Exposure Information
Cite This Study
Unknown (2007). Low-power millimeter wave radiations do not alter stress-sensitive gene expression of chaperone proteins.
Show BibTeX
@article{low_power_millimeter_wave_radiations_do_not_alter_stress_sensitive_gene_expression_of_chaperone_proteins_ce3117,
author = {Unknown},
title = {Low-power millimeter wave radiations do not alter stress-sensitive gene expression of chaperone proteins},
year = {2007},
doi = {10.1002/bem.20285},
}Quick Questions About This Study
This study found no activation of stress-sensitive genes or chaperone proteins in human brain cells exposed to 60 GHz millimeter waves for up to 33 hours at power densities up to 0.54 mW/cm².
Scientists selected 60 GHz because it's planned for future broadband wireless systems including high-speed WLAN networks, representing a new environmental exposure factor that will become common in homes and offices.
Chaperone proteins like HSP70 and clusterin help cells survive stress by protecting other proteins from damage. They serve as early warning indicators of cellular distress from environmental threats.
Human brain cells were exposed to 60 GHz radiation for varying durations from 1 hour up to 33 hours to test both short-term and extended exposure effects.
Researchers used two power densities: 5.4 µW/cm² (very low) and 0.54 mW/cm² (moderate), representing different potential exposure scenarios from future 60 GHz wireless devices.