Results 1 to 10 of about 13,159 (163)

Orexin, Orexin Receptor Antagonists and Central Cardiovascular Control [PDF]

open access: yesFrontiers in Neuroscience, 2013
Orexin makes an important contribution to the regulation of cardiovascular function. When injected centrally under anesthesia, orexin increases blood pressure, heart rate and sympathetic nerve activity.
Pascal eCarrive
doaj   +3 more sources

Evolution of Orexin Neuropeptide System: Structure and Function

open access: yesFrontiers in Neuroscience, 2020
Orexins are hypothalamic neuropeptides that were initially identified in the rat brain as endogenous ligands for an (previously) orphan G-protein-coupled receptor (GPCR).
Shingo Soya   +2 more
exaly   +3 more sources

Melatonin treatment affects leptin and nesfatin-1 levels but not orexin-a levels in rem sleep deprived rats [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2023
Sleep contributes to the energy balance of body. This study aims to investigate how rapid eye movement (REM) sleep deprivation (SD) or recovery sleep affects rat weight and the serum levels of Nesfatin-1, Orexin-A, and Leptin; additionally, seeks to ...
Aysen CAKIR   +3 more
doaj   +1 more source

Effect of plasma isolated Orexin-A on the regulation of metabolites in male rats [PDF]

open access: yesIraqi Journal of Veterinary Sciences, 2021
This research includes the isolation and purification of Orexin-A from the plasma of healthy human via various biochemical techniques, it was proposed the therapeutic role of orexin on hyperlipidemia and lipid peroxidation and it has been suggested to ...
Rana F. Jasim, Thikra A. Allwsh
doaj   +1 more source

GABAergic neurons in the nucleus accumbens regulate hedonic food intake via orexin-a expression in the lateral hypothalamus [PDF]

open access: yesIranian Journal of Basic Medical Sciences, 2021
Objective(s): To investigate the regulatory effects of the nucleus accumbens (NAcSh)-lateral hypothalamus (LHA) GABAergic neural pathway on palatable food (PF) intake via orexin-A expression in diet-induced obesity (DIO) rats.
Jieting Kong   +10 more
doaj   +1 more source

The Role of Orexin-A in Water Intake in Water-deprived Rats

open access: yesThe Journal of Qazvin University of Medical Sciences, 2022
Background: The lateral hypothalamus (LH), which produces orexin, is vital for body solution homeostasis. Lateral hypothalamus (LH) lesion causes adipsia and its stimulation increases water intake.
Mohammad Hossain Esmaeili   +4 more
doaj   +1 more source

Involvement of the Orexinergic System in Feeding

open access: yesApplied Sciences, 2021
To know the processes involved in feeding, the dysregulation of hypothalamic neuropeptides promoting anorexigenic/orexigenic mechanisms must be investigated. Many neuropeptides are involved in this behavior and in overweight/obesity.
Pilar Marcos, Rafael Coveñas
doaj   +1 more source

Orexins and stress [PDF]

open access: yesFrontiers in Neuroendocrinology, 2018
The neuropeptides orexins are important in regulating the neurobiological systems that respond to stressful stimuli. Furthermore, orexins are known to play a role many of the phenotypes associated with stress-related mental illness such as changes in cognition, sleep-wake states, and appetite.
Laura A, Grafe, Seema, Bhatnagar
openaire   +2 more sources

Orexin Directly Excites Orexin Neurons through Orexin 2 Receptor [PDF]

open access: yesThe Journal of Neuroscience, 2010
Orexin neurons (hypocretin neurons) have a critical role in the regulation of sleep/wakefulness, especially in the maintenance of arousal. Here, we revealed that orexin neurons are directly and indirectly activated by orexin via the orexin 2 receptor (OX2R).
Akihiro, Yamanaka   +4 more
openaire   +2 more sources

Orexin-A exerts neuroprotective effect in experimental intracerebral hemorrhage by suppressing autophagy via OXR1-mediated ERK/mTOR signaling pathway

open access: yesFrontiers in Cellular Neuroscience, 2022
BackgroundOrexin-A (OXA) is a polypeptide produced in the hypothalamus, which binds to specific receptors and exerts multiple physiological effects. Autophagy plays a vital role in early brain injury (EBI) after intracerebral hemorrhage (ICH).
Dexin Zhang   +8 more
doaj   +1 more source

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