Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 May;173(1):92-97.
doi: 10.1007/s10517-022-05500-8. Epub 2022 May 27.

Ultradian Near 2-4-h Rhythms of Body Temperature in Laboratory Rodents Depend on External Environmental Heliogeophysical Factor Reflected by Neutron Monitor Count Rate

M E Diatroptov  1 , M A Diatroptova  2 , A V Surov  3
Affiliations

Ultradian Near 2-4-h Rhythms of Body Temperature in Laboratory Rodents Depend on External Environmental Heliogeophysical Factor Reflected by Neutron Monitor Count Rate

M E Diatroptov et al. Bull Exp Biol Med. 2022 May.

Abstract

The study collated oscillations of body temperature of С57BL/6 mice and Roborovski hamsters (Phodopus roborovskii) in the period range of 100-240 min and fluctuations of the secondary cosmic rays reflected by neutron count rate of a neutron monitor at the Earth's surface. Cross-correlation of body temperature and neutron count rate data revealed their strong association only for simultaneous measurements. Collation of the phase of neutron count rate fluctuations with maxima of body temperature oscillations revealed the coincidence of the phases of both processes. There was a temporary connection between the periods of body temperature elevation and neutron count rate rise. Thus, not only the spectral parameters of biological and physical processes, but also their phases coincided, which corroborates the hypothesis on stimulating effect of increasing neutron count rate on activity of the animals.

Keywords: body temperature; mice; neutron monitoring; synchronizers; ultradian rhythms.

PubMed Disclaimer

References

    1. Anisimov SV, Shikhova NM, Dmitriev EM, Mareev EA. Mechanisms for the formation of electric-field pulsation spectra in the near-surface atmosphere. Radiophysics Quantum Electronics. 2001;44(7):520-532. doi: https://doi.org/10.1023/A:1017905732496 - DOI
    1. Deshcherevskii AV, Sidorin AYa, Kharin EP. Influence of heliogeophysical factors on animal activity under laboratory conditions. Dokl. Biol. Sci. 2005;401(1-6):139-143. doi: https://doi.org/10.1007/s10630-005-0067-0 - DOI - PubMed
    1. Diatroptova MA, Diatroptov ME. Amplitude of One-Minute Fluctuations of Secondary Cosmic Rays as a Marker of Environmental Factor Determining Ultradian Rhythms in Body Temperature of Laboratory Rats. Bull. Exp. Biol. Med. 2021;172(1):105-110. doi: https://doi.org/10.1007/s10517-021-05341-x - DOI - PubMed
    1. Diatroptov ME, Diatroptova MA. Association of Infradian Rhythms of Motor Activity, Concentration of Glucocorticoid Hormones, and One-Minute-Step Oscillations of Body Temperature with Intensity of Fluctuations of Secondary Cosmic Rays. Bull. Exp. Biol. Med. 2022;172(5):592-597. doi: https://doi.org/10.1007/s10517-022-05443-0 - DOI - PubMed
    1. Diatroptov ME, Slesarev SM, Zenchenko TA. Phase Analysis of Ultradian Rhythms of Body Temperature in Laboratory Mice Maintained under Constant Illumination at Different Longitudinal Locations. Bull. Exp. Biol. Med. 2021;172(1):72-76. doi: https://doi.org/10.1007/s10517-021-05334-w - DOI - PubMed

LinkOut - more resources