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Ultradian Biorhythms of C57BL/6 Mice Body Temperature under Constant Illumination or during Natural Day-Night Cycle
Bulletin of Experimental Biology and Medicine ( IF 0.7 ) Pub Date : 2020-07-01 , DOI: 10.1007/s10517-020-04893-8
M E Diatroptov 1 , M A Diatroptova 2 , V V Aleksankina 2 , A M Kosyreva 2
Affiliation  

The study analyzed the dynamics of intraperitoneal body temperature in C57BL/6 mice during 39 days of uninterrupted measurements. When mice were exposed to constant illumination, the ultradian oscillations of body temperature demonstrated the rhythms with periods of 2 h, 60 min, and 12 min, which were the higher harmonics of the circadian temperature oscillations. In two mutually isolated groups exposed to constant illumination, the phases of revealed biorhythms coincided. When the mice maintained under natural illumination, the body temperature demonstrated the ultradian rhythms with the same periods, which indicated that constant illumination did not distort the parameters of ultradian biorhythms. Probably, there is an external biotropic factor with similar harmonic spectrum, which synchronizes these biorhythms.

中文翻译:

C57BL/6 小鼠体温在恒定光照或自然昼夜循环中的超电生物节律

该研究分析了 C57BL/6 小鼠在 39 天不间断测量期间腹腔内体温的动态变化。当小鼠暴露在恒定光照下时,体温的超电振荡表现出周期为 2 小时、60 分钟和 12 分钟的节律,这是昼夜节律温度振荡的高次谐波。在暴露于恒定光照的两个相互隔离的组中,揭示的生物节律的阶段重合。小鼠保持在自然光照下时,体温表现出同期的超电节律,表明恒定光照不会扭曲超电生物节律参数。可能有一个具有相似谐波频谱的外部生物向性因素,使这些生物节律同步。
更新日期:2020-07-01
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