Literature DB >> 6098875

The role of calcium ions in circadian rhythm of suprachiasmatic nucleus neuron activity in rat hypothalamic slices.

S Shibata, A Shiratsuchi, S Y Liou, S Ueki.   

Abstract

The role of calcium ions in maintaining the circadian rhythm of suprachiasmatic nucleus (SCN) neuron activity was investigated using rat hypothalamic slice preparations. In normal Krebs solution, the firing rate of SCN neurons was higher in the light period than in the dark period. In Ca2+-free Krebs solution, SCN neuron activity was low during all periods and did not show diurnal rhythm. These results suggest that the disappearance of circadian rhythmic change of SCN neuron activity in Ca2+-free Krebs solution may be due to the disappearance of synaptic transmission in the SCN.

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Year:  1984        PMID: 6098875     DOI: 10.1016/0304-3940(84)90371-9

Source DB:  PubMed          Journal:  Neurosci Lett        ISSN: 0304-3940            Impact factor:   3.046


  3 in total

1.  The suprachiasmatic nuclei contain a tetrodotoxin-resistant circadian pacemaker.

Authors:  W J Schwartz; R A Gross; M T Morton
Journal:  Proc Natl Acad Sci U S A       Date:  1987-03       Impact factor: 11.205

2.  Effects of caffeine on circadian phase, amplitude and period evaluated in cells in vitro and peripheral organs in vivo in PER2::LUCIFERASE mice.

Authors:  Seira Narishige; Mari Kuwahara; Ayako Shinozaki; Satoshi Okada; Yuko Ikeda; Mayo Kamagata; Yu Tahara; Shigenobu Shibata
Journal:  Br J Pharmacol       Date:  2014-11-24       Impact factor: 8.739

3.  The essential role of cAMP/Ca2+ signalling in mammalian circadian timekeeping.

Authors:  John S O'Neill; Akhilesh B Reddy
Journal:  Biochem Soc Trans       Date:  2012-02       Impact factor: 5.407

  3 in total

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