Circadian rhythms of adenosine triphosphate contents in the suprachiasmatic nucleus, anterior hypothalamic area and caudate putamen of the rat - negative correlation with electrical activity

Shin Yamazaki, Yukisato Ishida, Shin Ichi T Inouye

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37 Scopus citations


Contents of adenosine triphosphate (ATP) in the suprachiasmatic nucleus (SCN), anterior hypothalamic area (AH) and caudate putamen (CPu) were determined every 4 h in rats kept under constant dark conditions. All tested regions of the brain exhibited circadian rhythms in ATP content. Among these, the amplitude of the rhythm was largest in the SCN. Peaks of the ATP content were observed at circadian time 18 in the SCN, 6 in the AH and 10 in the CPu. In view of the observation that at around these peak times electrical or glucose uptake activity of each brain region was lowest, the present results suggests that ATP content is negatively correlated with electrical or glucose uptake activity.

Original languageEnglish (US)
Pages (from-to)237-240
Number of pages4
JournalBrain Research
Issue number1-2
Publication statusPublished - Nov 21 1994



  • Adenosine triphosphate
  • Anterior hypothalamic area
  • Caudate putamen
  • Circadian rhythm
  • Metabolic activity
  • Rat
  • Suprachiasmatic nucleus

ASJC Scopus subject areas

  • Developmental Biology
  • Molecular Biology
  • Clinical Neurology
  • Neuroscience(all)

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