The study examined the effect of passive magnetic shielding on the magnitude of rhythmic oscillations of body temperature (BT) with 4-20 min periods in mice and their correlation with similar oscillations in unshielded control group. A magnetic permalloy screen that 35-fold attenuates the total geomagnetic field and decreased the undulations of magnetic field with the periods of few minutes by 5 times, produced no effect on the mean amplitude of BT oscillations within the same period range, their spectral power, and the cross-spectral density of examined rhythms in comparison with the control (unshielded) mice. Thus, either the mice possess a very sensitive magnetic sensory system or there exists an external non-magnetic factor affecting rhythmicity of BT. The study advanced intensity of thermal neutron radiation near the Earth’s surface known to reflect the flow of accelerated particles generated by the secondary cosmic rays as the external factor, which strongly correlates with BT rhythms revealed by cross-spectrum analysis.
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Belisheva NK, Kuzhevskii BM, Vashenyuk EV, Zhirov VK. Correlation between the fusion dynamics of cells growing in vitro and variations of neutron intensity near the Earth’s surface. Dokl. Biochem. Biophys. 2005;402:254-7. doi: https://doi.org/10.1007/s10628-005-0085-8
Belisheva NK, Kuzhevskij BM, Sigaeva EA, Panasyuk MI, Zhirov VK. Variations in the neutron intensity near the Earth’s surface modulate the functional state of the blood. Dokl. Biochem. Biophys. 2006;407:83-87. doi: https://doi.org/10.1134/s1607672906020104
Diatroptov ME. Changes in Body Temperature of Small Mammals and Birds in a Few Minutes Range as Reflection of Environmental Influences. Bull. Exp. Biol. Med. 2021;171(3):388-392. doi: https://doi.org/10.1007/s10517-021-05234-z
Diatroptov MЕ, Panchelyuga VA, Panchelyuga MS. Body Temperature Dynamics in Small Mammals and Birds in 10-120- min Period Range. Bull. Exp. Biol. Med. 2020;169(6):765-770. doi: https://doi.org/10.1007/s10517-020-04974-8
Blessing W, Ootsuka Y. Timing of activities of daily life is jaggy: How episodic ultradian changes in body and brain temperature are integrated into this process. Temperature (Austin). 2016;3(3):371-383. doi: https://doi.org/10.1080/23328940.2016.1177159
Blum ID, Zhu L, Moquin L, Kokoeva MV, Gratton A, Giros B, Storch KF. A highly tunable dopaminergic oscillator generates ultradian rhythms of behavioral arousal. Elife. 2014;3:e05105. doi: https://doi.org/10.7554/eLife.05105
Bourguignon C, Storch KF. Control of rest: activity by a dopaminergic ultradian oscillator and the circadian clock. Front. Neurol. 2017;8:614. doi: https://doi.org/10.3389/fneur.2017.00614
Goh GH, Maloney SK, Mark PJ, Blache D. Episodic Ultradian Events-Ultradian Rhythms. Biology (Basel). 2019;8(1):15. doi: https://doi.org/10.3390/biology8010015
Scriba MF, Henry I, Vyssotski AL, Mueller JC, Rattenborg NC, Roulin A. Ultradian Rhythmicity in sleep-wakefulness is related to color in nestling barn owl. J. Biol. Rhythms. 2017;32(5):456-468. doi: https://doi.org/10.1177/0748730417722250
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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 171, No. 6, pp. 777-782, June, 2021
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Diatroptov, M.E., Diatroptova, M.A. Possible External Factors Determining Ultradian (4-20-min) Rhythms of Body Temperature. Bull Exp Biol Med 171, 783–788 (2021). https://doi.org/10.1007/s10517-021-05316-y
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DOI: https://doi.org/10.1007/s10517-021-05316-y