Partial sleep deprivation reduces the efficacy of orexin‐A to stimulate physical activity and energy expenditure

DP DePorter, JE Coborn, JA Teske - Obesity, 2017 - Wiley Online Library
Objective Sufficient sleep is required for weight maintenance. Sleep deprivation due to noise
exposure stimulates weight gain by increasing hyperphagia and reducing energy …

Roles of orexin/hypocretin in regulation of sleep/wakefulness and energy homeostasis

T Sakurai - Sleep medicine reviews, 2005 - Elsevier
The finding of orexin (hypocretin) deficiency in patients with narcolepsy suggests that this
hypothalamic neuropeptide plays a crucial role in regulating and maintaining …

[HTML][HTML] The selective orexin receptor 1 antagonist ACT-335827 in a rat model of diet-induced obesity associated with metabolic syndrome

MA Steiner, C Sciarretta, A Pasquali… - Frontiers in …, 2013 - frontiersin.org
The orexin system regulates feeding, nutrient metabolism and energy homeostasis. Acute
pharmacological blockade of orexin receptor 1 (OXR-1) in rodents induces satiety and …

Role of the locus coeruleus in enhanced orexin A-induced spontaneous physical activity in obesity-resistant rats

JA Teske, CE Perez-Leighton… - American Journal of …, 2013 - journals.physiology.org
Orexin/hypocretin terminals innervate noradrenergic locus coeruleus (LC) neurons that
project to the prefrontral cortex, which may influence spontaneous physical activity (SPA) …

[HTML][HTML] Physiological role of orexin/hypocretin in the human body in motivated behavior: a comprehensive review

R Singh, DA Biswas - Cureus, 2023 - ncbi.nlm.nih.gov
Neurohormones are neurosecretory materials released by neurosecretory cells that serve
both as neuromodulators in the brain and spinal cord and as circulating regulatory …

Roles for orexin/hypocretin in the control of energy balance and metabolism

PB Goforth, MG Myers - Behavioral Neuroscience of orexin/hypocretin, 2017 - Springer
The neuropeptide hypocretin is also commonly referred to as orexin, since its orexigenic
action was recognized early. Orexin/hypocretin (OX) neurons project widely throughout the …

Roles of orexins in the regulation of feeding and arousal

T Sakurai - Sleep medicine, 2002 - Elsevier
Maintenance of energy homeostasis requires the coordination of systems that regulate
feeding, autonomic and endocrine functions with those that govern an appropriate state of …

[HTML][HTML] Input organization and plasticity of hypocretin neurons: possible clues to obesity's association with insomnia

TL Horvath, XB Gao - Cell metabolism, 2005 - cell.com
The lateral hypothalamic hypocretin (also called orexin) neurons have emerged as
instrumental in triggering arousal and regulating energy metabolism. The lack of hypocretin …

[HTML][HTML] Hypothalamic orexin prevents non-alcoholic steatohepatitis and hepatocellular carcinoma in obesity

H Tsuneki, T Maeda, S Takata, M Sugiyama, K Otsuka… - Cell Reports, 2022 - cell.com
Non-alcoholic steatohepatitis (NASH) occasionally occurs under obesity; however, factors
modulating the natural history of fatty liver disease remain unknown. Since hypothalamic …

Orexins and orexin receptors: implication in feeding behavior

T Sakurai - Regulatory peptides, 1999 - Elsevier
Orexin-A and-B are initially identified as endogenous ligands for an orphan G protein
coupled receptor. Since the discovery of orexins, investigations of their functions have been …