Feedback from Arctic charr: Feed flavour stimulation and re-feeding after feed deprivation stimulate genes encoding both orexigenic and anorexigenic neuropeptides

Highlights • No hunger signalling in Arctic charr upon short- and long-term feed deprivation. • Hypothalamic insulin like growth factor 1 expression reduced during long-term feed deprivation in Arctic charr. • Re-feeding and feed flavour exposure induce increases in gene expression of both orexigeni...

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Veröffentlicht in:	General and comparative endocrinology 2017-05, Vol.246, p.71-80
Hauptverfasser:	Striberny, Anja, Jørgensen, Even H
Format:	Artikel
Sprache:	eng
Schlagworte:	AgRP Animals Appetite regulation Appetite Regulation - physiology Body Weight CART Endocrinology & Metabolism Fasting - physiology Feed deprivation Fish Proteins - genetics Fish Proteins - metabolism Flavour stimulation Food Deprivation - physiology Gene expression Gene Expression Regulation Hypothalamic appetite regulators Hypothalamus - metabolism MC4R Neuropeptides - metabolism Real-Time Polymerase Chain Reaction Reverse Transcriptase Polymerase Chain Reaction RNA, Messenger - genetics Teleosts Trout - metabolism
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Beschreibung
Zusammenfassung:	Highlights • No hunger signalling in Arctic charr upon short- and long-term feed deprivation. • Hypothalamic insulin like growth factor 1 expression reduced during long-term feed deprivation in Arctic charr. • Re-feeding and feed flavour exposure induce increases in gene expression of both orexigenic (AgRP) and anorexigenic (CART) neuropeptides. • Changes in gene expression of appetite regulators visible during transition states (e.g. fasting to re-feeding)
ISSN:	0016-6480 1095-6840
DOI:	10.1016/j.ygcen.2017.03.012