Results 41 to 50 of about 13,103 (221)

The dual orexin/hypocretin receptor antagonist, almorexant, in the ventral tegmental area attenuates ethanol self-administration. [PDF]

open access: yesPLoS ONE, 2012
Recent studies have implicated the hypocretin/orexinergic system in reward-seeking behavior. Almorexant, a dual orexin/hypocretin R(1) and R(2) receptor antagonist, has proven effective in preclinical studies in promoting sleep in animal models and was ...
Subhashini Srinivasan   +8 more
doaj   +1 more source

Hypocretin and Human African Trypanosomiasis [PDF]

open access: yesSleep, 2008
To detail clinical and polysomnographic characteristics in patients affected with Trypanosoma brucei gambiense (Tb.g.) human African trypanosomiasis (HAT) at different stages of evolution and to measure and compare cerebrospinal fluid (CSF) levels of hypocretin-1 with narcoleptic patients and neurologic controls.Twenty-five untreated patients affected ...
Yves, Dauvilliers   +6 more
openaire   +2 more sources

Heterogeneity of Hypocretin/Orexin Neurons [PDF]

open access: yes, 2021
The multifunctional, hypothalamic hypocretin/orexin (HCRT)-producing neurons regulate an array of physiological and behavioral states including arousal, sleep, feeding, emotions, stress, and reward. How a presumably uniform HCRT neuron population regulates such a diverse set of functions is not clear.
Dana, Sagi   +2 more
openaire   +2 more sources

Narcolepsy, cataplexy, hypocretin and co-existing other health complaints: A review

open access: yesCogent Medicine, 2017
The presence of cataplexy in people with narcolepsy has a well-documented tight association with very low or non-detectable levels of the central nervous system neuropeptide, hypocretin (also termed orexin) while levels of hypocretin are normal in people
Samantha Gauci   +2 more
doaj   +1 more source

Hypocretinergic interactions with the serotonergic system regulate REM sleep and cataplexy

open access: yesNature Communications, 2020
Narcolepsy is characterized by a sudden loss of muscle tone (cataplexy) similar to REM sleep and is caused by hypocretin deficiency. Here, the authors show that deleting the serotonin transporter gene in hypocretin knockout mice suppresses cataplexy ...
Ali Seifinejad   +4 more
doaj   +1 more source

ATP-Sensitive Potassium Channel-Mediated Lactate Effect on Orexin Neurons: Implications for Brain Energetics during Arousal [PDF]

open access: yes, 2010
Active neurons have a high demand for energy substrate, which is thought to be mainly supplied as lactate by astrocytes. Heavy lactate dependence of neuronal activity suggests that there may be a mechanism that detects and controls lactate levels and/or ...
Hirasawa, Michiru, Parsons, Matthew P.
core   +1 more source

Hypnotic doses of fazamorexant induced less impairment on balance and cognition than zolpidem in healthy younger and elderly individualse

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
Aims Fazamorexant is a dual orexin receptor antagonist being developed for the treatment of insomnia. This study aims to determine the dose‐exposure‐response relationship of single‐dose fazamorexant vs. zolpidem in young adult and elderly healthy Chinese volunteers. Methods This single‐centre, randomized, double‐blind, double‐dummy, placebo‐ and active‐
Chen Xia   +3 more
wiley   +1 more source

Effects of vivo morpholino knockdown of lateral hypothalamus orexin/hypocretin on renewal of alcohol seeking.

open access: yesPLoS ONE, 2014
Two experiments used vivo morpholinos to assess the role of orexin/hypocretin in ABA renewal of extinguished alcohol seeking. Rats were trained to respond for alcoholic beer in a distinctive context, A, and then extinguished in a second distinctive ...
Asheeta A Prasad, Gavan P McNally
doaj   +1 more source

Abietic Acid Enhances the Sedative Activity of Diazepam: In vivo Approach along with Receptor Binding Affinity and Molecular Interaction with the GABAergic System

open access: yesChemistryOpen, EarlyView.
Abietic acid (AA) reveals potent sedative potential by expressing fast sleeping onset and increased sleeping duration compare to the control group in thiopental sodium induced sleeping mice. The compound also exhibited notable binding affinity (–7.9 kcal/mol) toward GABAA receptors.
Meher Afroz   +10 more
wiley   +1 more source

Pituitary Macrotumor Causing Narcolepsy‐Cataplexy in a Dachshund

open access: yesJournal of Veterinary Internal Medicine, 2017
Familial narcolepsy secondary to breed‐specific mutations in the hypocretin receptor 2 gene and sporadic narcolepsy associated with hypocretin ligand deficiencies occur in dogs.
S. Schmid   +4 more
doaj   +1 more source

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