Study of the effects of 50 Hz magnetic field on embryonic development: dependence on field level and field vector.

PAPER pubmed Reviews on environmental health 1994 Animal study Effect: no_effect Evidence: Low

Read original paper → DOI: 10.1515/reveh.1994.10.3-4.225 PMID: 7724883 Evidence Lab

Abstract

We studied the influence of power frequency and vector of EMF on avian and mammalian embryogenesis at a high level of magnetic induction (10 mT professional exposures and using therapeutic devices of Czech provenance) and at a low level (6 microT-environmental occurrence). No significant alterations of either avian or mammalian embryogenesis were found after repeated exposures to 50 Hz MF at 10 mT or 6 microT, nor with different vectors.

AI evidence extraction

At a glance

Study type

Animal study

Effect direction

no_effect

Population

Avian and mammalian embryos

Sample size

—

Exposure

ELF occupational, therapeutic devices · 0.05 MHz · repeated exposures

Evidence strength

Low

Confidence: 74% · Peer-reviewed: yes

Main findings

Repeated exposures to 50 Hz magnetic fields at 10 mT (professional/therapeutic device-related) or 6 µT (environmental level) showed no significant alterations in avian or mammalian embryogenesis. No significant differences were found with different field vectors.

Outcomes measured

Embryonic development/embryogenesis (avian)
Embryonic development/embryogenesis (mammalian)

Limitations

Sample size not reported in abstract
Exposure duration and timing during development not specified in abstract
Species/strain details not specified in abstract
Outcome measures and assessment methods not described in abstract

Suggested hubs

occupational-exposure (0.6)
Mentions professional exposures at 10 mT.

View raw extracted JSON

{
    "study_type": "animal",
    "exposure": {
        "band": "ELF",
        "source": "occupational, therapeutic devices",
        "frequency_mhz": 0.05000000000000000277555756156289135105907917022705078125,
        "sar_wkg": null,
        "duration": "repeated exposures"
    },
    "population": "Avian and mammalian embryos",
    "sample_size": null,
    "outcomes": [
        "Embryonic development/embryogenesis (avian)",
        "Embryonic development/embryogenesis (mammalian)"
    ],
    "main_findings": "Repeated exposures to 50 Hz magnetic fields at 10 mT (professional/therapeutic device-related) or 6 µT (environmental level) showed no significant alterations in avian or mammalian embryogenesis. No significant differences were found with different field vectors.",
    "effect_direction": "no_effect",
    "limitations": [
        "Sample size not reported in abstract",
        "Exposure duration and timing during development not specified in abstract",
        "Species/strain details not specified in abstract",
        "Outcome measures and assessment methods not described in abstract"
    ],
    "evidence_strength": "low",
    "confidence": 0.7399999999999999911182158029987476766109466552734375,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "50 Hz",
        "ELF magnetic field",
        "power frequency",
        "embryogenesis",
        "embryonic development",
        "avian",
        "mammalian",
        "field vector",
        "10 mT",
        "6 µT"
    ],
    "suggested_hubs": [
        {
            "slug": "occupational-exposure",
            "weight": 0.59999999999999997779553950749686919152736663818359375,
            "reason": "Mentions professional exposures at 10 mT."
        }
    ]
}

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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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