Ultradian rhythm of growth hormone secretion and sleep in the adult male rat.

@article{Kimura1984UltradianRO,
  title={Ultradian rhythm of growth hormone secretion and sleep in the adult male rat.},
  author={Fukuko Kimura and Christina W. Tsai},
  journal={The Journal of physiology},
  year={1984},
  volume={353},
  pages={305-15}
}
The correlation between growth hormone (GH) secretion and the sleep-wakefulness cycle in the adult male rat was studied by serial blood sampling at 10 min intervals. Electroencephalograms (e.e.g.s) recorded continuously during the blood sampling were scored into wakefulness and sleep, and the amount of sleep for every 10 min was plotted against the GH value as assessed by radioimmunoassay. The power spectrum analysis and the least-squares method applied to the time series of GH concentrations… CONTINUE READING