Repeated light-dark shifts speed up body weight gain in male F344 rats.

@article{Tsai2005RepeatedLS,
  title={Repeated light-dark shifts speed up body weight gain in male F344 rats.},
  author={Ling Ling Tsai and Yu-Che Tsai and Kai-Lun Hsu Hwang and Yu-Wen Huang and Jeh-En Tzeng},
  journal={American journal of physiology. Endocrinology and metabolism},
  year={2005},
  volume={289 2},
  pages={
          E212-7
        }
}
  • L. Tsai, Yu-Che Tsai, +2 authors J. Tzeng
  • Published 1 March 2005
  • Biology, Psychology
  • American journal of physiology. Endocrinology and metabolism
This study is aimed at verifying the causal relationship of chronic circadian desynchronization and changes in body weight control. Eight male albino F344 rats aged between 12-15 wk were subjected to twice weekly 12-h shifts of the daily light-dark (LD) cycle for 13 wk (3 mo). Continuous circadian phase shifts consisting of intermittent phase delay and advance and reduced circadian amplitudes were consistently displayed in all five experimental rats implanted intraperitoneally with heart rate… 
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