Effect of centimeter microwaves and the combined magnetic field on the tumor necrosis factor production in cells of mice with experimental tumors

Bioeffects Seen

Novoselova EG, Ogai VB, Sorokina OV, Novikov VV, Fesenko EE · 2001

Extremely low microwave exposure enhanced immune system tumor-fighting response in mice, demonstrating biological effects at power levels 1,000 times below cell phones.

Plain English Summary

Summary written for general audiences

Researchers exposed tumor-bearing mice to extremely low-level microwaves (1 microW/cm2) combined with weak magnetic fields for 1.5 hours daily over 7 days. They found that this dual exposure increased production of tumor necrosis factor, a protein that helps the immune system fight cancer cells. The results suggest that certain EMF exposures might actually enhance the body's natural tumor-fighting response.

Why This Matters

This 2001 Russian study presents an intriguing finding that challenges common assumptions about EMF effects on cancer. The researchers used extraordinarily low microwave power densities-1 microW/cm2 is roughly 1,000 times lower than what your cell phone produces during a call. What makes this research particularly noteworthy is that it demonstrates biological effects at such minimal exposure levels, reinforcing the principle that intensity doesn't always correlate with biological impact. The enhanced tumor necrosis factor production suggests the EMF exposure may have triggered beneficial immune responses. However, this represents just one study with a specific exposure combination and duration. The broader question remains whether such effects occur consistently across different EMF frequencies and exposure patterns, and whether they translate to meaningful health outcomes in real-world scenarios.

Exposure Details

Magnetic Field: 0.001 to 0.0001 mG
Power Density: 0.001 µW/m²
Source/Device: 8.15-18 GHz EMF RFand 3-10 Hz Magnetic field
Exposure Duration: 1.5 h daily for 7 days

Exposure Context

This study used 0.001 µW/m² for radio frequency:

100Kx above the Building Biology guideline of 0.1 μW/m²
1.7Kx above the BioInitiative Report recommendation of 0.0006 μW/cm²

This study used 0.001 to 0.0001 mG for magnetic fields:

50x above the Building Biology guideline of 0.2 mG
10x above the BioInitiative Report recommendation of 1 mG

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 effect of fractionated exposure to low-intensity microwaves (8.15-18 GHz, 1 microW/cm2, 1.5 h daily for 7 days) and combined weak magnetic field (constant 65 1 microT; alternating--100 nT, 3-10 Hz) on the production of tumor necrosis factor in macrophages of mice with experimental solid tumors produced by transplantation of Ehrlich ascites carcinoma was studied.

It was found that exposure of mice to both microwaves and magnetic field enhanced the adaptive respo...

Cite This Study

Novoselova EG, Ogai VB, Sorokina OV, Novikov VV, Fesenko EE (2001). Effect of centimeter microwaves and the combined magnetic field on the tumor necrosis factor production in cells of mice with experimental tumors Biofizika 46(1):131-135, 2001.

Show BibTeX

@article{eg_2001_effect_of_centimeter_microwaves_1235,
  author = {Novoselova EG and Ogai VB and Sorokina OV and Novikov VV and Fesenko EE},
  title = {Effect of centimeter microwaves and the combined magnetic field on the tumor necrosis factor production in cells of mice with experimental tumors},
  year = {2001},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/11236554/},
}

PubMed: 11236554

Cited By (10 papers)

Effect of weak combined static and extremely low‐frequency alternating magnetic fields on tumor growth in mice inoculated with the Ehrlich ascites carcinoma
V. V. Novikov et al. (2009) - 72 citations
Effect of weak static and low‐frequency alternating magnetic fields on the fission and regeneration of the planarian dugesia (Girardia) tigrina
V. V. Novikov et al. (2008) - 50 citations
The bioeffects of extremely weak power-frequency alternating magnetic fields
N. Belova et al. (2007) - 36 citations
Effects and molecular mechanisms of the biological action of weak and extremely weak magnetic fields
V. Novikov et al. (2010) - 19 citations
Effects of low-level combined static and weak low-frequency alternating magnetic fields on cytokine production and tumor development in mice
E. Novoselova et al. (2018) - 16 citations
Effect of weak combined static and extremely low-frequency alternating magnetic fields on spatial memory and brain amyloid-β in two animal models of Alzheimer’s disease
N. Bobkova et al. (2018) - 16 citations
Effect of weak and ultraweak combined magnetic fields and low-intensity microwaves on regeneration in the planarian Dugesia tigrina
V. V. Novikov et al. (2007) - 4 citations
Microwave Bioeffect Congruence with Schizophrenia
J. McMurtrey (2005) - 3 citations
Effects of diffusion on the tumour regression in exposure to the non-ionizing electromagnetic waves
Fatemeh Ansarizadeh, Tonghua Zhang (2026)
Reagentless Modified Water and Its Biological Activity
Y. Gulyaev et al. (2020)

Quick Questions About This Study

A 2001 study found that exposing tumor-bearing mice to extremely low-level microwaves (8.15-18 GHz) combined with weak magnetic fields increased tumor necrosis factor production. This protein helps the immune system fight cancer cells, suggesting certain EMF exposures might enhance natural tumor-fighting responses.

Research showed that mice exposed to 1 microW/cm2 microwaves plus 3-10 Hz magnetic fields for 1.5 hours daily produced higher levels of tumor necrosis factor. This protein is crucial for immune system recognition and destruction of cancer cells in the body.

Scientists found that combining 8.15-18 GHz microwaves with 3-10 Hz magnetic fields enhanced the body's adaptive response to tumor growth. Tumor-bearing mice showed increased production of tumor necrosis factor, a key immune system protein that targets cancer cells.

The 2001 study used 1.5-hour daily exposures for 7 consecutive days to see immune system effects. This relatively short exposure period was sufficient to increase tumor necrosis factor production in peritoneal macrophages of tumor-bearing mice.

Yes, peritoneal macrophages from tumor-bearing mice showed enhanced tumor necrosis factor production after exposure to 8.15-18 GHz microwaves plus 3-10 Hz magnetic fields. These immune cells demonstrated a stronger adaptive response compared to unexposed control mice.