Hormonal and neural mechanisms of food reward, eating behaviour and obesity

S Murray, A Tulloch, MS Gold, NM Avena - Nature Reviews …, 2014 - nature.com
With rising rates of obesity, research continues to explore the contributions of homeostatic
and hedonic mechanisms related to eating behaviour. In this Review, we synthesize the …

Weight perturbation alters leptin signal transduction in a region-specific manner throughout the brain

MV Morabito, Y Ravussin, BR Mueller, AA Skowronski… - PLoS …, 2017 - journals.plos.org
Diet-induced obesity (DIO) resulting from consumption of a high fat diet (HFD) attenuates
normal neuronal responses to leptin and may contribute to the metabolic defense of an …

Hypothalamic tanycytes are an ERK-gated conduit for leptin into the brain

E Balland, J Dam, F Langlet, E Caron, S Steculorum… - Cell metabolism, 2014 - cell.com
Leptin secreted by adipocytes acts on the brain to reduce food intake by regulating neuronal
activity in the mediobasal hypothalamus (MBH). Obesity is associated with resistance to high …

Leptin inhibits food-deprivation-induced increases in food intake and food hoarding

E Keen-Rhinehart, TJ Bartness - American Journal of …, 2008 - journals.physiology.org
Food deprivation stimulates foraging and hoarding and to a much lesser extent, food intake
in Siberian hamsters. Leptin, the anorexigenic hormone secreted primarily from adipocytes …

Lateral hypothalamic orexin glucose-inhibited neurons may regulate reward-based feeding by modulating glutamate transmission in the ventral tegmental area

SB Teegala, Z Sheng, MS Dalal, PR Hirschberg… - Brain research, 2020 - Elsevier
Glucose inhibits∼ 60% of lateral hypothalamic (LH) orexin neurons. Fasting increases the
activation of LH orexin glucose-inhibited (GI) neurons in low glucose. Increases in …

Functional implications of limited leptin receptor and ghrelin receptor coexpression in the brain

M Perello, MM Scott, I Sakata, CE Lee… - Journal of …, 2012 - Wiley Online Library
The hormones leptin and ghrelin act in apposition to one another in the regulation of body
weight homeostasis. Interestingly, both leptin receptor expression and ghrelin receptor …

Leptin Receptor‐ and STAT3‐Immunoreactivities in Hypocretin/Orexin Neurones of the Lateral Hypothalamus1

Håkansson, D Lecea, Sutcliffe… - Journal of …, 1999 - Wiley Online Library
Hypocretins/orexins are recently characterized peptides that are synthesized in neurones of
the lateral hypohalamus and stimulate food intake in rats. To clarify whether leptin may …

Leptin Receptor− Deficient Obese Zucker Rats Reduce Their Food Intake in Response to a Systemic Supply of Calories From Glucose

M Gilbert, C Magnan, S Turban, J André… - Diabetes, 2003 - Am Diabetes Assoc
It has been established that leptin exerts a negative control on food intake, allowing one to
maintain stable caloric intake over time. The aim of the present study was to investigate …

Hedonic eating: sex differences and characterization of orexin activation and signaling

L Buczek, J Migliaccio, GD Petrovich - Neuroscience, 2020 - Elsevier
Palatable taste can stimulate appetite in the absence of hunger, and individual differences in
hedonic eating may be critical to overeating. Women are more prone to obesity and binge …

Ghrelin acts as an interface between physiological state and phasic dopamine signaling

JJ Cone, JE McCutcheon, MF Roitman - Journal of Neuroscience, 2014 - Soc Neuroscience
Brief, high-concentration (phasic) spikes in nucleus accumbens dopamine critically
participate in aspects of food reward. Although physiological state (eg, hunger, satiety) and …