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

Saudi journal of biological sciences · 2018 · Mixed · Low evidence

← Research stream

MixedLow evidencePaper 4893

Study snapshot

PublicationSaudi journal of biological sciences · 2018

Study typein_vitro

Reported directionMixed

Evidence ratingLow

Abstract

This study was aimed to evaluate the impact of high frequency electromagnetic fields (HF-EMF at 900 and 1800 MHz) on DNA, growth rate and antibiotic susceptibility of , , and . In this study, bacteria were exposed to 900 and 1800 MHz for 2 h and then inoculated to new medium when their growth rate and antibiotic susceptibility were evaluated. Results for the study of bacterial DNA unsuccessful to appearance any difference exposed and non-exposed and . Exposure of and to electromagnetic fields mostly produced no statistically significant decrease in bacterial growth, except for when exposure to 900 MHz at 12 h. Exposure of to electromagnetic fields at 900 MHz however, lead to a significant reduction in growth rate, while 1800 MHz had insignificant effect. With the exception of , treated with amoxicillin (30 µg) and exposed to electromagnetic fields, radiation treatment had no significant effect on bacterial sensitivity to antibiotics.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typein_vitro

Effect directionmixed

PopulationNot supplied

Sample sizeNot supplied

ExposureRF · 900 MHz · 2 h

Evidence strengthLowConfidence: 66% · Peer reviewed: yes

Main findings

Bacteria were exposed to HF-EMF at 900 and 1800 MHz for 2 h and then assessed for DNA, growth rate, and antibiotic susceptibility. The DNA assessment reported no difference between exposed and non-exposed groups for the bacteria evaluated. Growth effects were mostly not statistically significant, with some exceptions (including a significant reduction in growth rate at 900 MHz for one bacterium, and a significant decrease at 12 h for another at 900 MHz). Antibiotic susceptibility was generally not significantly affected by EMF exposure, except for an amoxicillin-treated condition noted as an exception.

Outcomes measured

DNA changes/differences
bacterial growth rate
antibiotic susceptibility/sensitivity

Limitations

Specific bacterial species names are not provided in the abstract text (placeholders shown).
No sample size or replication details are reported in the abstract.
Exposure metrics beyond frequency and duration (e.g., power density, SAR, modulation) are not described.
Methods for DNA assessment are not specified in the abstract.
Statistical methods and effect sizes are not reported in the abstract.

View raw extracted JSON

{
  "study_type": "in_vitro",
  "exposure": {
    "band": "RF",
    "source": null,
    "frequency_mhz": 900,
    "sar_wkg": null,
    "duration": "2 h"
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "DNA changes/differences",
    "bacterial growth rate",
    "antibiotic susceptibility/sensitivity"
  ],
  "main_findings": "Bacteria were exposed to HF-EMF at 900 and 1800 MHz for 2 h and then assessed for DNA, growth rate, and antibiotic susceptibility. The DNA assessment reported no difference between exposed and non-exposed groups for the bacteria evaluated. Growth effects were mostly not statistically significant, with some exceptions (including a significant reduction in growth rate at 900 MHz for one bacterium, and a significant decrease at 12 h for another at 900 MHz). Antibiotic susceptibility was generally not significantly affected by EMF exposure, except for an amoxicillin-treated condition noted as an exception.",
  "effect_direction": "mixed",
  "limitations": [
    "Specific bacterial species names are not provided in the abstract text (placeholders shown).",
    "No sample size or replication details are reported in the abstract.",
    "Exposure metrics beyond frequency and duration (e.g., power density, SAR, modulation) are not described.",
    "Methods for DNA assessment are not specified in the abstract.",
    "Statistical methods and effect sizes are not reported in the abstract."
  ],
  "evidence_strength": "low",
  "confidence": 0.66,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "high frequency electromagnetic fields",
    "RF-EMF",
    "900 MHz",
    "1800 MHz",
    "bacteria",
    "DNA",
    "growth rate",
    "antibiotic susceptibility",
    "amoxicillin"
  ],
  "suggested_hubs": []
}

AI can be wrong. Always verify against the paper.

AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1016/j.sjbs.2017.07.006
PubMed: 29379365

Read the original paper →

Related papers

← Back to the Research Library