A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Science, Moscow, Russia.
V. A. Nasonova Research Institute of Rheumatology, Moscow, Russia.
Bull Exp Biol Med. 2023 Jul;175(3):382-387. doi: 10.1007/s10517-023-05872-5. Epub 2023 Aug 10.
In a long-term (8 months) study, we examined the degree of synchronization of ultradian body temperature oscillations of two isolated groups of mice kept under constant dim illumination. In most cases, the periods of increased activity accompanied by rapid elevation of body temperature coincided in these groups of mice, but in some days, no significant synchronization between the examined parameters was observed. Analysis of the effects of environmental factors on the degree of synchronization of ultradian rhythms in mice revealed association of this parameter with the dynamics of atmospheric pressure (AtmP) and to a lesser extent with the vertical component of interplanetary magnetic field Bz. The loss in synchronicity of ultradian rhythms of mouse activity occurred after a rapid drop of AtmP or during pronounced negative Bz. Therefore, these factors can be viewed as desynchronizers of the biological ultradian rhythms.
在一项为期 8 个月的长期研究中，我们研究了两组处于恒定微光环境下的隔离小鼠的超昼夜体温波动的同步程度。在大多数情况下，这两组小鼠的活动期和体温快速升高是同步的，但在某些日子里，观察到这些参数之间没有明显的同步性。对环境因素对小鼠超昼夜节律同步程度的影响分析表明，该参数与大气压力（AtmP）的动态相关，与行星际磁场 Bz 的垂直分量的相关性较小。在 AtmP 快速下降或 Bz 明显为负时，小鼠活动的超昼夜节律同步性丧失。因此，这些因素可以被视为生物超昼夜节律的去同步器。
