Effect of a 2.45-GHz radiofrequency electromagnetic field on neutrophil chemotaxis and phagocytosis in differentiated human HL-60 cells.
Koyama S, Narita E, Suzuki Y, Taki M, Shinohara N, Miyakoshi J. · 2014
View Original AbstractWiFi-frequency radiation at safety limit levels showed no effect on key immune cell functions in this controlled study.
Plain English Summary
Japanese researchers exposed immune cells called neutrophils to 2.45-GHz radiofrequency radiation (the same frequency used in WiFi and microwave ovens) at levels up to 10 W/kg for up to 24 hours. They found no significant effects on the cells' ability to migrate toward threats or engulf harmful particles - two critical immune functions. This suggests that RF exposure at current safety limits may not impair these specific immune responses.
Why This Matters
This study provides reassuring evidence about RF radiation's effects on neutrophil function, which is significant because neutrophils are your immune system's first responders to infection and injury. The researchers tested exposure levels both at and above current safety guidelines (2 W/kg is the ICNIRP limit, while 10 W/kg exceeds typical device exposures). What makes this research particularly relevant is that it examined 2.45-GHz radiation - the exact frequency used by WiFi routers, Bluetooth devices, and microwave ovens that surround us daily. While this single study doesn't settle all questions about RF radiation and immune function, it adds to a growing body of research examining how wireless technology affects our biological systems. The reality is that we need more studies like this one - well-controlled laboratory research that examines specific biological functions at realistic exposure levels.
Exposure Details
- SAR
- 2, 10 W/kg
- Source/Device
- 2.45-GHz
- Exposure Duration
- 4 and 24 hours
Exposure Context
This study used 2, 10 W/kg for SAR (device absorption):
- 5x above the Building Biology guideline of 0.4 W/kg
Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.
Where This Falls on the Concern Scale
Study Details
The aim of this study is to invesitgate Effect of a 2.45-GHz radiofrequency electromagnetic field on neutrophil chemotaxis and phagocytosis in differentiated human HL-60 cells.
In order to investigate the properties of RF fields, we examined the effect of 2.45-GHz RF fields at...
Neutrophil chemotaxis was not affected by RF-field exposure, and subsequent phagocytosis was not aff...
The results of our experiments for RF-field exposure at an SAR under 10 W/kg showed very little or no effects on either chemotaxis or phagocytosis in neutrophil-like human HL-60 cells.
Show BibTeX
@article{s_2014_effect_of_a_245ghz_1111,
author = {Koyama S and Narita E and Suzuki Y and Taki M and Shinohara N and Miyakoshi J.},
title = {Effect of a 2.45-GHz radiofrequency electromagnetic field on neutrophil chemotaxis and phagocytosis in differentiated human HL-60 cells.},
year = {2014},
url = {https://pubmed.ncbi.nlm.nih.gov/25194051/},
}