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DNA & Genetic Damage

Evaluation of effect of high frequency electromagnetic field on growth and antibiotic sensitivity of bacteria

No Effects Found

Authors not listed · 2018

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Cell phone frequencies showed minimal effects on bacterial growth and didn't increase antibiotic resistance in laboratory conditions.

Plain English Summary

Summary written for general audiences

Researchers exposed three types of bacteria to cell phone frequencies (900 and 1800 MHz) for 2 hours to test effects on bacterial DNA, growth, and antibiotic resistance. The study found minimal effects, with only one bacteria strain showing reduced growth at 900 MHz and no significant changes to DNA or antibiotic sensitivity.

Why This Matters

This study adds to our understanding of how EMF affects microorganisms, though the implications for human health remain complex. The researchers used frequencies identical to GSM cell phones (900 and 1800 MHz), making this directly relevant to everyday exposures. While the results showed mostly no effects on bacterial growth or antibiotic resistance, the selective impact on P. aeruginosa at 900 MHz suggests frequency-specific responses may exist. What's particularly interesting is that EMF didn't make bacteria more resistant to antibiotics, a concern given rising antibiotic resistance globally. However, we should interpret these findings cautiously. Bacteria are fundamentally different from human cells, and a 2-hour exposure doesn't reflect the chronic, low-level exposures humans experience daily from wireless devices.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz, 1800 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHz, 1800 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2018). Evaluation of effect of high frequency electromagnetic field on growth and antibiotic sensitivity of bacteria.
Show BibTeX
@article{evaluation_of_effect_of_high_frequency_electromagnetic_field_on_growth_and_antibiotic_sensitivity_of_bacteria_ce3000,
  author = {Unknown},
  title = {Evaluation of effect of high frequency electromagnetic field on growth and antibiotic sensitivity of bacteria},
  year = {2018},
  doi = {10.1016/j.sjbs.2017.07.006},
  
}
DOI: 10.1016/j.sjbs.2017.07.006PubMed: 29379365

Quick Questions About This Study

No, the study found no differences in DNA between bacteria exposed to these cell phone frequencies and unexposed bacteria. Both S. aureus and S. epidermidis showed no DNA changes after 2-hour exposures.
Generally no. Most bacteria showed no significant growth changes when exposed to 900 or 1800 MHz radiation. Only S. aureus at 900 MHz showed reduced growth at the 12-hour mark.
Yes, P. aeruginosa showed significant growth reduction when exposed to 900 MHz radiation, but 1800 MHz had no significant effect. This suggests bacteria may respond differently to specific frequencies.
The study found no significant increase in antibiotic resistance from EMF exposure, except for one specific case with S. aureus and amoxicillin. This is reassuring given concerns about antibiotic resistance.
Bacteria were exposed to 900 and 1800 MHz electromagnetic fields for 2 hours, then transferred to fresh growth medium where researchers monitored their growth and antibiotic sensitivity.