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

PAPER pubmed Radiatsionnaia biologiia, radioecologiia 2001 Animal study Effect: mixed Evidence: Low

Read original paper → PMID: 11605241 Evidence Lab

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.

AI evidence extraction

At a glance

Study type

Animal study

Effect direction

mixed

Population

Drosophila embryos (15 h 10 m age)

Sample size

—

Exposure

RF · 460 MHz · 0.12 W/kg · 5 min

Evidence strength

Low

Confidence: 74% · Peer-reviewed: yes

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.

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": 0.11999999999999999555910790149937383830547332763671875,
        "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": 0.7399999999999999911182158029987476766109466552734375,
    "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/metadata and may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.

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