Results 11 to 20 of about 176 (49)

The role of orexins/hypocretins in alcohol use and abuse: an appetitive-reward relationship

open access: yesFrontiers in Behavioral Neuroscience, 2012
Orexins (hypocretins) are neuropeptides synthesized in neurons located in the lateral, perifornical and dorsomedial hypothalamus. These neurons innervate many regions in the brain and modulate multiple other neurotransmitter systems. As a result of these
Andrezza Kyunmi Kim   +3 more
doaj   +1 more source

The Orexin-A/OX1R System Induces Cell Death in Pancreatic Cancer Cells Resistant to Gemcitabine and Nab-Paclitaxel Treatment

open access: yesFrontiers in Oncology, 2022
Pancreatic ductal adenocarcinoma (PDAC) represents the fourth cause of cancer-associated death in the West. This type of cancer has a very poor prognosis notably due to the development of chemoresistance when treatments including gemcitabine and Abraxane
Thierry Voisin   +9 more
doaj   +1 more source

Correlation analysis between plasma orexin ⁃ A and core clinical features of dementia with Lewy bodies

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2023
Objective To analyze the correlations between plasma orexin⁃A and clinical manifestations of dementia with Lewy bodies (DLB). Methods A total of 51 patients with DLB from Beijing Tiantan hospital, Capital Medical University, and 46 sex, age and ...
Jing⁃huan GAN   +4 more
doaj   +1 more source

Orexins/Hypocretins: Key Regulators of Energy Homeostasis

open access: yesFrontiers in Endocrinology, 2019
Originally described to be involved in feeding regulation, orexins/hypocretins are now also considered as major regulatory actors of numerous biological processes, such as pain, sleep, cardiovascular function, neuroendocrine regulation, and energy ...
Edward Milbank   +3 more
doaj   +1 more source

Children with Narcolepsy type 1 have increased T‐cell responses to orexins

open access: yesAnnals of Clinical and Translational Neurology, 2019
Narcolepsy type 1 (NT1) is caused by severe loss of the orexin neurons, and is highly associated with HLA DQB1*06:02. Using intracellular cytokine staining, we observed a higher frequency of IFN‐γ‐ and TNF‐α‐producing CD4+ and CD8+ T‐cells in response to
Andrew C. Cogswell   +5 more
doaj   +1 more source

Neurobiology of the Orexin System and Its Potential Role in the Regulation of Hedonic Tone

open access: yesBrain Sciences, 2022
Orexin peptides comprise two neuropeptides, orexin A and orexin B, that bind two G-protein coupled receptors (GPCRs), orexin receptor 1 (OXR1) and orexin receptor 2 (OXR2).
Martin A. Katzman, Matthew P. Katzman
doaj   +1 more source

The physiological role of orexin/hypocretin neurons in the regulation of sleep/wakefulness and neuroendocrine functions

open access: yesFrontiers in Endocrinology, 2013
The hypothalamus monitors body homeostasis and regulates various behaviors such as feeding, thermogenesis, and sleeping. Orexins (also known as hypocretins) were identified as endogenous ligands for two orphan G-protein-coupled receptors in the lateral ...
Ayumu eInutsuka   +3 more
doaj   +1 more source

The Anti-tumoral Properties of Orexin/Hypocretin Hypothalamic Neuropeptides: An Unexpected Therapeutic Role

open access: yesFrontiers in Endocrinology, 2018
Orexins (OxA and OxB) also termed hypocretins are hypothalamic neuropeptides involved in central nervous system (CNS) to control the sleep/wake process which is mediated by two G protein-coupled receptor subtypes, OX1R, and OX2R.
Alain Couvineau   +6 more
doaj   +1 more source

Neuroprotective Effects of Physical Activity: Evidence from Human and Animal Studies

open access: yesFrontiers in Neurology, 2017
In the present article, we provide a review of current knowledge regarding the role played by physical activity (PA) in preventing age-related cognitive decline and reducing risk of dementia.
Sergio Chieffi   +12 more
doaj   +1 more source

Orexin system increases energy expenditure by brown adipose tissue activity

open access: yesNational Journal of Physiology, Pharmacy and Pharmacology, 2017
Adipose tissue is a biological caloric reservoir that expands itself in response to overnutrition and releases lipids in response to energy deficit. It comprises white adipose tissue, the main energy storage, and brown adipose tissue (BAT), a key site of
Antonietta Messina   +11 more
doaj   +1 more source

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