Sihai Zhou, Xiaopeng Li, Fengji Liang, Guohua Ji, Ke Lv, Yanhong Yuan, Yujie Zhao, Na Yan, Chuanjie Zhang, Shiou Cai, Shuhui Zhang, Xu Liu, Bo Song, Lina Qu
Long-term spaceflight is known to induce disruptions in circadian rhythms, which are driven by a central pacemaker located in the suprachiasmatic nucleus (SCN) of the hypothalamus, but the underlying molecular mechanisms remain unclear. Here, we developed a rat model that simulated microgravity and isolation environments through tail suspension and isolation (TSI). We found that the TSI environment imposed circadian disruptions to the core body temperature, heart rate, and locomotor-activity rhythms of rats, especially in the amplitude of these rhythms...
April 29, 2024: International Journal of Molecular Sciences