Neural activity in the suprachiasmatic circadian clock of nocturnal mice anticipating a daytime meal

Highlights • Mice exhibit food anticipatory activity (FAA) to a mid-day meal (usual rest phase). • FOS in the SCN circadian clock was reduced during FAA in mice with running disks. • Multiple unit activity in the SCN either increased or decreased during FAA. • Changes in SCN MUA during behavioral ac...

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Veröffentlicht in:	Neuroscience 2016-02, Vol.315, p.91-103
Hauptverfasser:	Dattolo, T, Coomans, C.P, van Diepen, H.C, Patton, D.F, Power, S, Antle, M.C, Meijer, J.H, Mistlberger, R.E
Format:	Artikel
Sprache:	eng
Schlagworte:	Actigraphy Animals Anticipation, Psychological - physiology Circadian Clocks - physiology circadian rhythms Eating - physiology Eating - psychology Electrodes, Implanted Food food anticipation food entrainment FOS Immunohistochemistry Male Mice, Inbred C57BL Motor Activity - physiology multiple unit activity Neurology Neurons - metabolism Photoperiod Proto-Oncogene Proteins c-fos - metabolism suprachiasmatic nucleus Suprachiasmatic Nucleus - physiology
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Zusammenfassung:	Highlights • Mice exhibit food anticipatory activity (FAA) to a mid-day meal (usual rest phase). • FOS in the SCN circadian clock was reduced during FAA in mice with running disks. • Multiple unit activity in the SCN either increased or decreased during FAA. • Changes in SCN MUA during behavioral activity were not unique to FAA. • The timing of MUA changes during FAA suggests a feedback effect of activity.
ISSN:	0306-4522 1873-7544
DOI:	10.1016/j.neuroscience.2015.12.014