[Effect of low-frequency pulse-modulated 460 MHz electromagnetic irradiation on Drosophila embryos].

Radiatsionnaia biologiia, radioecologiia · 2001 · Mixed · Low evidence

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MixedLow evidencePaper 6374

A 5-minute exposure to 460 MHz electromagnetic radiation pulse-modulated at 2.5–40 Hz (average SAR 0.12 W/kg; pulsed SAR 3 W/kg) altered the percentage of Drosophila embryos with interrupted development. The strength of the effect depended on modulation rate,…

Study snapshot

PublicationRadiatsionnaia biologiia, radioecologiia · 2001

Study typeanimal

Reported directionMixed

Evidence ratingLow

Abstract

Effect of electromagnetic radiation 460 MHz with 2.5-40 Hz pulse modulation rate on Drosophila embryos of 15 h 10 m age was studied. It was demonstrated that a 5-min irradiation with 0.12 W/kg average SAR (3 W/kg pulsed SAR) alters the Drosophila percentage of interrupted development. The effect strength depended on the modulation rate with a pronounced decrease at 10 and 16 Hz. A hypothesis about the presence of thermal and non-thermal mechanisms of action of pulse-modulated microwave radiation diversely effecting the embryos has been put forward and grounded.

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 typeanimal

Effect directionmixed

PopulationDrosophila embryos (15 h 10 m age)

Sample sizeNot supplied

ExposureRF · 460 MHz · 0.12 W/kg · 5 min

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Outcomes measured

Interrupted development (percentage)

Limitations

Sample size not reported in the abstract.
No unexposed/sham control details provided in the abstract.
Exposure setup and dosimetry details beyond SAR values are not provided in the abstract.
Outcome definition and direction of change (increase vs decrease in interrupted development) is not explicitly stated.

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": "RF",
    "source": null,
    "frequency_mhz": 460,
    "sar_wkg": 0.12,
    "duration": "5 min"
  },
  "population": "Drosophila embryos (15 h 10 m age)",
  "sample_size": null,
  "outcomes": [
    "Interrupted development (percentage)"
  ],
  "main_findings": "A 5-minute exposure to 460 MHz electromagnetic radiation pulse-modulated at 2.5–40 Hz (average SAR 0.12 W/kg; pulsed SAR 3 W/kg) altered the percentage of Drosophila embryos with interrupted development. The strength of the effect depended on modulation rate, with a pronounced decrease at 10 and 16 Hz.",
  "effect_direction": "mixed",
  "limitations": [
    "Sample size not reported in the abstract.",
    "No unexposed/sham control details provided in the abstract.",
    "Exposure setup and dosimetry details beyond SAR values are not provided in the abstract.",
    "Outcome definition and direction of change (increase vs decrease in interrupted development) is not explicitly stated."
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "460 MHz",
    "pulse modulation",
    "2.5–40 Hz",
    "SAR",
    "microwave",
    "RF",
    "Drosophila",
    "embryo development",
    "interrupted development"
  ],
  "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: Not supplied
PubMed: 11605241

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