Biological effects related to geomagnetic activity and possible mechanisms

Abstract

Biological effects related to geomagnetic activity and possible mechanisms Krylov VV. Biological effects related to geomagnetic activity and possible mechanisms. Bioelectromagnetics. 2017 Jun 21. doi: 10.1002/bem.22062. Abstract This review presents contemporary data on the biological effects of geomagnetic activity. Correlations between geomagnetic indices and biological parameters and experimental studies that used simulated geomagnetic storms to detect possible responses of organisms to these events in nature are discussed. Possible mechanisms by which geomagnetic activity influences organisms are also considered. Special attention is paid to the idea that geomagnetic activity is perceived by organisms as a disruption of diurnal geomagnetic variation. This variation, in turn, is viewed by way of a secondary zeitgeber for biological circadian rhythms. Additionally, we discuss the utility of cryptochrome as a biological detector of geomagnetic storms. The possible involvement of melatonin and protein coding by the CG8198 gene in the biological effects of geomagnetic activity are discussed. Perspectives for studying mechanisms by which geomagnetic storms affect organisms are suggested. ncbi.nlm.nih.gov

AI evidence extraction

Main findings

The review summarizes reported correlations between geomagnetic indices and biological parameters and discusses experimental studies using simulated geomagnetic storms. It considers potential mechanisms, emphasizing disruption of diurnal geomagnetic variation as a secondary zeitgeber for circadian rhythms and discussing cryptochrome, melatonin, and CG8198 as possible contributors.

Outcomes measured

• biological parameters correlated with geomagnetic indices
• responses to simulated geomagnetic storms
• circadian rhythms/zeitgeber disruption (diurnal geomagnetic variation)
• cryptochrome as detector of geomagnetic storms
• melatonin involvement
• CG8198 gene/protein coding involvement

Limitations

• Review; specific populations, exposure metrics, and effect sizes are not provided in the abstract.
• The abstract does not state the consistency or magnitude of effects across studies.

{
    "study_type": "review",
    "exposure": {
        "band": "ELF",
        "source": "geomagnetic activity / geomagnetic storms",
        "frequency_mhz": null,
        "sar_wkg": null,
        "duration": null
    },
    "population": "organisms (not further specified)",
    "sample_size": null,
    "outcomes": [
        "biological parameters correlated with geomagnetic indices",
        "responses to simulated geomagnetic storms",
        "circadian rhythms/zeitgeber disruption (diurnal geomagnetic variation)",
        "cryptochrome as detector of geomagnetic storms",
        "melatonin involvement",
        "CG8198 gene/protein coding involvement"
    ],
    "main_findings": "The review summarizes reported correlations between geomagnetic indices and biological parameters and discusses experimental studies using simulated geomagnetic storms. It considers potential mechanisms, emphasizing disruption of diurnal geomagnetic variation as a secondary zeitgeber for circadian rhythms and discussing cryptochrome, melatonin, and CG8198 as possible contributors.",
    "effect_direction": "unclear",
    "limitations": [
        "Review; specific populations, exposure metrics, and effect sizes are not provided in the abstract.",
        "The abstract does not state the consistency or magnitude of effects across studies."
    ],
    "evidence_strength": "insufficient",
    "confidence": 0.7399999999999999911182158029987476766109466552734375,
    "peer_reviewed_likely": "yes",
    "keywords": [
        "geomagnetic activity",
        "geomagnetic storms",
        "diurnal geomagnetic variation",
        "circadian rhythms",
        "zeitgeber",
        "cryptochrome",
        "melatonin",
        "CG8198"
    ],
    "suggested_hubs": []
}

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