Is there any possible genotoxic effect in exfoliated bladder cells of rat under the exposure of 1800 MHz GSM-like modulated radio frequency radiation (RFR)?

Electromagnetic biology and medicine · 2010 · No effect · Low evidence

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No effectLow evidencePaper 4364

Exposure to 1800 MHz GSM modulated radio frequency radiation did not produce a significant increase in micronucleus frequency in rat bladder cells compared to controls (p>0.05), indicating no genotoxic effect under the study conditions.

Study snapshot

PublicationElectromagnetic biology and medicine · 2010

Study typerandomized_trial

Reported directionNo effect

Evidence ratingLow

Abstract

People are exposed to many carcinogenic and mutagenic chemicals in their everyday lives. These include antineoplastic drugs, Polycyclic aromatic hydrocarbons (PAH)s, aromatic amines, nitrosamines, metals, and electromagnetic radiation. Based on the state of knowledge acquired during the last 50 years of research on possible biological effects of electromagnetic fields (EMF), the majority of the scientific community is convinced that exposure to EMF below the existing security limits does not cause a risk to the health of the general public. However, this position is questioned by others, who are of the opinion that the available research data are contradictory or inconsistent and, therefore, unreliable. In this study, we aimed to investigate if there is any effect of 1800 MHz GSM modulated radio frequency radiation (RFR) on the number of micronucleus in exfoliated bladder cells of rat which will be informative about the genotoxic damage. Exposure period was 20 min/day, 5 days/week during a month. Six female Wistar rats were used for two groups: Group I (n=6): controls; Group II (n=6): 1.8 GHz exposed animals. 1800 MHz RFR did not showed a significant MN frequencies in rat bladder cells when compared with the control group (p>0.05). 1800 MHz RFR-exposed animals did not produce any genotoxic effect when compared with the control group ( p>0.05). Kinetic studies are important for any biomarker, especially those in which tissue differentiation and maturation processes will heavily influence the time between induction of damage and collection of damaged cells for micronucleus analysis.

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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 typerandomized_trial

Effect directionno_effect

Populationfemale Wistar rats

Sample size12

ExposureRF · 1800 MHz · 20 min/day, 5 days/week for 1 month

Evidence strengthLowConfidence: 40% · Peer reviewed: yes

Main findings

Outcomes measured

micronucleus frequency in exfoliated bladder cells

Limitations

small sample size (n=6 per group)
only female rats studied
only one exposure duration and frequency tested
kinetic factors affecting biomarker timing noted but not controlled

View raw extracted JSON

{
  "study_type": "randomized_trial",
  "exposure": {
    "band": "RF",
    "source": "GSM-like mobile phone",
    "frequency_mhz": 1800,
    "sar_wkg": null,
    "duration": "20 min/day, 5 days/week for 1 month"
  },
  "population": "female Wistar rats",
  "sample_size": 12,
  "outcomes": [
    "micronucleus frequency in exfoliated bladder cells"
  ],
  "main_findings": "Exposure to 1800 MHz GSM modulated radio frequency radiation did not produce a significant increase in micronucleus frequency in rat bladder cells compared to controls (p>0.05), indicating no genotoxic effect under the study conditions.",
  "effect_direction": "no_effect",
  "limitations": [
    "small sample size (n=6 per group)",
    "only female rats studied",
    "only one exposure duration and frequency tested",
    "kinetic factors affecting biomarker timing noted but not controlled"
  ],
  "evidence_strength": "low",
  "confidence": 0.4,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "genotoxicity",
    "micronucleus",
    "radio frequency radiation",
    "1800 MHz",
    "GSM",
    "rat bladder cells"
  ],
  "suggested_hubs": []
}

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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: 10.3109/15368378.2010.482498
PubMed: 20707643

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