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Effects of 900-MHz Radio Frequencies on the Chemotaxis of Human Neutrophils in Vitro.

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Aly AA, Cheema MI, Tambawala M, Laterza R, Zhou E, Rathnabharathi K, Barnes FS. · 2008

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Cell phone-level RF radiation disrupts immune cells' ability to navigate toward infections, potentially compromising your body's first line of defense.

Plain English Summary

Summary written for general audiences

Scientists exposed infection-fighting white blood cells to 900-MHz cell phone radiation. The RF exposure made cells move 50% faster and in wrong directions, away from infection sites they should target. This immune system disruption occurred within minutes at non-heating power levels.

Why This Matters

This study reveals a concerning disruption to one of your immune system's most basic functions. Neutrophils are your body's first responders to infection and injury, and their ability to navigate toward trouble spots is critical for proper immune response. The fact that cell phone-level RF radiation can scramble these cellular navigation systems within minutes suggests our wireless devices may be interfering with immune function in ways we're only beginning to understand. The 0.4 V/m exposure level used here is well within the range you experience when using a cell phone or being near wireless devices. What makes this particularly significant is that the effect occurred without any measurable heating - contradicting the wireless industry's long-held position that only thermal effects from RF radiation matter for human health.

Exposure Details

Electric Field
0.4 V/m
Source/Device
900-MHz

Exposure Context

This study used 0.4 V/m for electric fields:

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.

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Study Details

The effects of radio frequency (RF) fields on the ability of human neutrophils to follow concentration gradients of Cyclic Adenosine 3', 5'-Monophosphate (C-AMP) are reported.

Blood from healthy adult donors was exposed in vitro to different temperatures and 900-MHz RF field ...

It was observed that the neutrophils' speed increased with increasing temperatures from 35 degrees t...

The average time for the neutrophils to respond to the effect of RF radiation was about 2.5 min.

Cite This Study
Aly AA, Cheema MI, Tambawala M, Laterza R, Zhou E, Rathnabharathi K, Barnes FS. (2008). Effects of 900-MHz Radio Frequencies on the Chemotaxis of Human Neutrophils in Vitro. IEEE Transactions on Biomedical Engineering, 55(2): 795-797, 2008.
Show BibTeX
@article{aa_2008_effects_of_900mhz_radio_809,
  author = {Aly AA and Cheema MI and Tambawala M and Laterza R and Zhou E and Rathnabharathi K and Barnes FS.},
  title = {Effects of 900-MHz Radio Frequencies on the Chemotaxis of Human Neutrophils in Vitro.},
  year = {2008},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/18270019/},
}
PubMed: 18270019

Cited By (30 papers)

Quick Questions About This Study

Yes, 900 MHz radiation from cell phones disrupts neutrophil movement patterns. A 2008 study found these infection-fighting white blood cells moved 50% faster but in wrong directions, away from infection sites they should target. This immune disruption occurred within 2.5 minutes at non-heating power levels.
White blood cells respond to 900 MHz radiation within 2.5 minutes on average. Research by Aly and colleagues showed neutrophils immediately changed their movement patterns when exposed to cell phone frequencies, moving faster but in incorrect directions away from infection sites.
Yes, 900 MHz cell phone radiation increases neutrophil speed by approximately 50% above normal levels. However, this faster movement is problematic because the cells move away from infection sites rather than toward them, potentially compromising your body's ability to fight infections effectively.
Yes, 900 MHz radiation alters neutrophil movement direction without thermal effects. The study calculated temperature increases of less than one microdegree, yet neutrophils still moved at right angles to their intended path toward infection sites, demonstrating non-thermal biological effects from cell phone radiation.
During 900 MHz EMF exposure, neutrophils become disoriented and move away from infection sites instead of toward them. The 2008 in vitro study showed these white blood cells moved 50% faster but in wrong directions, potentially weakening immune response to infections.