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MICROWAVES INDUCE AN INCREASE IN THE FREQUENCY OF COMPLEMENT RECEPTOR-BEARING LYMPHOID SPLEEN CELLS IN MICE

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WIESLAW WIKTOR-JEDRZEJCZAK, AFTAB AHMED, KENNETH W. SELL, PRZEMYSLAW CZERSKI, WILLIAM M. LEACH · 1977

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2450 MHz microwave exposure altered immune cell populations in mice spleens, showing biological effects at common environmental frequencies.

Plain English Summary

Summary written for general audiences

Researchers exposed mice to 2450 MHz microwave radiation for 30 minutes and found significant increases in specific immune cells in the spleen. The effect became even stronger with repeated exposures, suggesting microwave radiation can alter immune system function in mammals.

Why This Matters

This 1977 study provides early evidence that microwave radiation at 2450 MHz - the same frequency used in microwave ovens and some WiFi devices - can measurably alter immune cell populations in mammals. The researchers found that even a single 30-minute exposure increased complement-receptor positive lymphoid cells, with repeated exposures producing additional changes. What makes this particularly relevant is that 2450 MHz remains one of the most common frequencies in our daily environment through microwave ovens, older WiFi routers, and some wireless devices. The power density used (12 mW/g) is within ranges that could occur from close proximity to these devices. While this study focused on immune cells rather than cancer or neurological effects, it demonstrates that microwave radiation can produce biological changes at the cellular level - contradicting industry claims that non-ionizing radiation is biologically inert.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
WIESLAW WIKTOR-JEDRZEJCZAK, AFTAB AHMED, KENNETH W. SELL, PRZEMYSLAW CZERSKI, WILLIAM M. LEACH (1977). MICROWAVES INDUCE AN INCREASE IN THE FREQUENCY OF COMPLEMENT RECEPTOR-BEARING LYMPHOID SPLEEN CELLS IN MICE.
Show BibTeX
@article{microwaves_induce_an_increase_in_the_frequency_of_complement_receptor_bearing_ly_g5691,
  author = {WIESLAW WIKTOR-JEDRZEJCZAK and AFTAB AHMED and KENNETH W. SELL and PRZEMYSLAW CZERSKI and WILLIAM M. LEACH},
  title = {MICROWAVES INDUCE AN INCREASE IN THE FREQUENCY OF COMPLEMENT RECEPTOR-BEARING LYMPHOID SPLEEN CELLS IN MICE},
  year = {1977},
  
  
}

Quick Questions About This Study

Yes, this study found that 2450 MHz microwave exposure significantly increased complement-receptor positive lymphoid cells in mouse spleens. The effect was enhanced with repeated exposures, indicating measurable immune system changes.
A single 30-minute exposure to 2450 MHz microwaves was sufficient to produce significant increases in specific immune cell populations in the spleen. Longer or repeated exposures enhanced these effects further.
The study used 12 mW/g body weight of 2450 MHz microwave radiation. This power density level was enough to produce measurable changes in immune cell populations after just 30 minutes of exposure.
Yes, three repeated exposures enhanced the immune cell changes and additionally increased the proportion of Ig+ cells. This suggests cumulative effects from multiple microwave exposures on the immune system.
Yes, microwave ovens operate at 2450 MHz, the exact same frequency that produced immune cell changes in this study. This frequency is also used by some WiFi devices and wireless equipment.