Paradoxical sleep deprivation activates hypothalamic nuclei that regulate food intake and stress response

A large body of evidence has shown that prolonged paradoxical sleep deprivation (PSD) results in hypothalamic–pituitary–adrenal (HPA) axis activation, and in loss of body weight despite an apparent increase of food intake, reflecting increased energy expenditure. The flowerpot technique for PSD is an efficient paradigm for investigating the relationships among metabolic regulation and stress response. […]

Changes in expression of appetite-regulating hormones in the cunner (Tautogolabrus adspersus) during short-term fasting and winter torpor

Feeding in vertebrates is controlled by a number of appetite stimulating (orexigenic, e.g. orexin and neuropeptide Y, NPY) and appetite suppressing (anorexigenic, e.g. cholecystokinin, CCK and cocaine- and amphetamine-regulated transcript, CART) hormones. Cunners (Tautogolabrus adspersus) survive the winter in shallow coastal waters by entering a torpor-like state, during which they forgo feeding. In order to […]