The in vivo effects of low-intensity radiofrequency fields on the motor activity of protozoa.

Abstract

PURPOSE: To analyze the direct and transgenerational effects of exposure to low-dose 1 GHz (mobile phone/wireless telecommunication range) and 10 GHz (radar/satellite communication range) radiofrequency electromagnetic fields (RF-EMF) on the motility of ciliates Spirostomum ambiguum. MATERIALS AND METHODS: S. ambiguum were exposed to 1 GHz and 10 GHz RF-EMF with power flux densities (PD) ranging from 0.05-0.5 W/m(2) over a period of time from 0.05-10 h. The motility of directly exposed ciliates and their non-exposed progeny across 10-15 generations was measured. RESULTS: Exposure to 0.1 W/m(2) of either 1 or 10 GHz RF-EMF resulted in a significant decrease in the motility. The dose of exposure capable of altering the mobility of ciliates was inversely correlated with the flux density of RF-EMF. The motility of the non-exposed progeny of ciliates irradiated with 0.1 W/m(2) of 10 GHz RF-EMF remained significantly compromised, at least, across 10-15 generations, thus indicating the presence of transgenerational effects. CONCLUSIONS: The results of our study show that low-dose exposure to RF-EMF can significantly affect the motility of irradiated ciliates and their non-exposed offspring, thus providing further insights into the unknown mechanisms underlying the in vivo effects of RF-EMF.

AI evidence extraction

Main findings

Exposure to 0.1 W/m^2 at either 1 GHz or 10 GHz RF-EMF significantly decreased ciliate motility. Non-exposed progeny of ciliates irradiated with 0.1 W/m^2 at 10 GHz showed significantly compromised motility across at least 10–15 generations.

Outcomes measured

• Motility/motor activity of ciliates
• Transgenerational effects on motility across 10–15 generations

Limitations

• Sample size not reported in abstract
• Outcome limited to motility in a single protozoan species
• Exposure metric reported as power flux density; SAR not provided

{
    "study_type": "animal",
    "exposure": {
        "band": "RF",
        "source": "mobile phone/wireless telecommunication; radar/satellite communication",
        "frequency_mhz": null,
        "sar_wkg": null,
        "duration": "0.05–10 h"
    },
    "population": "Ciliate protozoa (Spirostomum ambiguum)",
    "sample_size": null,
    "outcomes": [
        "Motility/motor activity of ciliates",
        "Transgenerational effects on motility across 10–15 generations"
    ],
    "main_findings": "Exposure to 0.1 W/m^2 at either 1 GHz or 10 GHz RF-EMF significantly decreased ciliate motility. Non-exposed progeny of ciliates irradiated with 0.1 W/m^2 at 10 GHz showed significantly compromised motility across at least 10–15 generations.",
    "effect_direction": "harm",
    "limitations": [
        "Sample size not reported in abstract",
        "Outcome limited to motility in a single protozoan species",
        "Exposure metric reported as power flux density; SAR not provided"
    ],
    "evidence_strength": "low",
    "confidence": 0.7800000000000000266453525910037569701671600341796875,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "RF-EMF",
        "radiofrequency",
        "1 GHz",
        "10 GHz",
        "power flux density",
        "protozoa",
        "ciliates",
        "Spirostomum ambiguum",
        "motility",
        "transgenerational effects"
    ],
    "suggested_hubs": []
}

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