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Orexins in apoptosis: a dual regulatory role [PDF]

open access: yesFrontiers in Cellular Neuroscience
The orexins, also referred to as hypocretins, are neuropeptides that originate from the lateral hypothalamus (LH) region of the brain. They are composed of two small peptides, orexin-A, and orexin-B, which are broadly distributed throughout the central ...
Simona Cavalu   +8 more
doaj   +2 more sources

The Orexin/Hypocretin System, the Peptidergic Regulator of Vigilance, Orchestrates Adaptation to Stress [PDF]

open access: yesBiomedicines
The orexin/hypocretin neuropeptide family has emerged as a focal point of neuroscientific research following the discovery that this family plays a crucial role in a variety of physiological and behavioral processes. These neuropeptides serve as powerful
Miklós Jászberényi   +4 more
doaj   +2 more sources

Hypothalamic orexins as possible therapeutic agents in threat and spatial memory disorders [PDF]

open access: yesFrontiers in Behavioral Neuroscience, 2023
Orexin-A and orexin-B, neuropeptides produced exclusively in the lateral hypothalamus, have been implicated in various functions, including memory. Their levels are elevated in certain pathological states, such as PTSD, and lowered in other states, e.g.,
Filip Mazur, Jarosław Całka
doaj   +2 more sources

The Orexin receptors: Structural and anti-tumoral properties

open access: yesFrontiers in Endocrinology, 2022
At the end of the 20th century, two new neuropeptides (Orexin-A/hypocretin-1 and Orexin-B/hypocretins-2) expressed in hypothalamus as a prepro-orexins precursor, were discovered.
Alain Couvineau   +3 more
doaj   +1 more source

Orexins and bipolar disorder: A review

open access: yesEuropean Psychiatry, 2022
Introduction Bipolar disorder (BD) is a chronic deteriorating illness which has a strong impact on functionality. In the past few years, orexins have gained importance as possible biomarkers of circadian rhythms, affected in BD. Up to this date, we have
C. Moya Lacasa   +8 more
doaj   +1 more source

Does Orexin B-Binding Receptor 2 for Orexins Regulate Testicular and Epididymal Functions in Normal and Cryptorchid Dogs?

open access: yesFrontiers in Veterinary Science, 2022
Orexins A (OXA) and B (OXB) and the receptors 1 (OX1R) and 2 (OX2R) for orexins are hypothalamic peptides found in several mammalian organs and participated to the control of a wide assortment of physiological and pathological functions. The distribution
Caterina Squillacioti   +8 more
doaj   +1 more source

Orexins/Hypocretins and Cancer: A Neuropeptide as Emerging Target

open access: yesMolecules, 2021
Over 20 years ago, orexin neuropeptides (Orexin-A/hypocretin-1 and Orexin-B/hypocretins-2) produced from the same precursor in hypothalamus were identified.
Couvineau Alain   +3 more
doaj   +1 more source

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, Takeshi Sakurai
doaj   +1 more source

Evaluation of Blood Levels of Omentin-1 and Orexin-A in Adults with Obstructive Sleep Apnea: A Systematic Review and Meta-Analysis

open access: yesLife, 2023
Background and objective: Obstructive sleep apnea (OSA) can be related to changes in the levels of adipokines and neuropeptides, which in turn may affect the energy balance components of neuronal cells.
Iman Mohammadi   +5 more
doaj   +1 more source

Orexins and male reproduction

open access: yesAsian Pacific Journal of Reproduction, 2019
Orexins (or hypocretins) are hypothalamic neuropeptides with a multitude of physiological functions. They occur in two known forms, namely, orexin A and orexin B with a common precursor, preproorexin. The orexin receptors (orexin 1R and orexin 2R) belong
Pallav Sengupta   +3 more
doaj   +1 more source

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