Orexin (/ɒˈrɛksɪn/), also known as hypocretin, is a neuropeptide that regulates arousal, wakefulness, and appetite. It exists in the forms of orexin-A...
54 KB (6,142 words) - 10:17, 7 March 2025
gene (HCRTR1, HCRTR2). Both orexin receptors exhibit a similar pharmacology – the 2 orexin peptides, orexin-A and orexin-B, bind to both receptors and...
15 KB (1,365 words) - 06:27, 26 February 2025
An orexin receptor antagonist, or orexin antagonist, is a drug that inhibits the effect of orexin by acting as a receptor antagonist of one (selective...
20 KB (2,073 words) - 08:29, 23 February 2025
Orexin-A, also known as hypocretin-1, is a naturally occurring neuropeptide and orexin isoform. The orexinergic nucleus in the lateral hypothalamus is...
5 KB (653 words) - 05:33, 8 December 2023
Suvorexant (category Orexin antagonists)
Suvorexant, sold under the brand name Belsomra, is an orexin antagonist medication which is used in the treatment of insomnia. It is indicated specifically...
94 KB (8,957 words) - 07:55, 20 February 2025
Narcolepsy (section Orexin replacement)
symptoms of EDS and cataplexy, and/or will have cerebrospinal fluid (CSF) orexin levels of less than 110 pg/ml. Cataplexy are transient episodes of aberrant...
72 KB (8,224 words) - 12:24, 28 March 2025
Daridorexant (category Orexin antagonists)
Daridorexant, sold under the brand name Quviviq, is an orexin antagonist medication which is used for the treatment of insomnia. Daridorexant is taken...
48 KB (4,097 words) - 05:13, 18 March 2025
colocalized on orexin projection neurons in the lateral hypothalamus and many output structures of the orexin system, where the CB1 and orexin receptor 1...
68 KB (7,775 words) - 11:09, 25 February 2025
Lateral hypothalamus (redirect from Orexin system)
(e.g., anandamide) and the orexin neuropeptides orexin-A and orexin-B are the primary signaling neurochemicals in orexin neurons; pathway-specific neurochemicals...
27 KB (3,032 words) - 13:35, 14 November 2023
Orexin receptor type 1 (Ox1R or OX1), also known as hypocretin receptor type 1 (HcrtR1), is a protein that in humans is encoded by the HCRTR1 gene. The...
10 KB (1,104 words) - 02:20, 10 March 2024
hypothalamic neurons that produce the neuropeptide hypocretin (also called orexin), which regulates arousal and has a role in stabilization of the transition...
22 KB (2,504 words) - 15:39, 25 March 2025
Seltorexant (category Orexin antagonists)
an orexin antagonist medication which is under development for the treatment of depression and insomnia. It is a selective antagonist of the orexin OX2...
7 KB (498 words) - 08:59, 15 September 2024
Orexin receptor type 2 (Ox2R or OX2), also known as hypocretin receptor type 2 (HcrtR2), is a protein that in humans is encoded by the HCRTR2 gene. It...
17 KB (1,672 words) - 02:28, 15 August 2024
Lemborexant (category Orexin antagonists)
Lemborexant, sold under the brand name Dayvigo, is an orexin antagonist medication which is used in the treatment of insomnia. It is indicated specifically...
21 KB (1,687 words) - 09:07, 5 September 2024
abstract). In specific subregions of each area, either opioid-stimulating or orexin-stimulating microinjections appear to enhance the number of liking reactions...
23 KB (2,765 words) - 08:07, 10 March 2025
Danavorexton (category Orexin receptor agonists)
Danavorexton (developmental code name TAK-925) is a selective orexin 2 receptor agonist. It is a small-molecule compound and is administered intravenously...
5 KB (301 words) - 01:41, 22 September 2024
Firazorexton (category Orexin receptor agonists)
International Nonproprietary Name; development code TAK-994) is an experimental orexin 2 (OX2) receptor agonist first described in a 2019 patent filed by Takeda...
8 KB (532 words) - 01:59, 22 September 2024
and associate with arousal. Orexin deficiency has been identified as responsible for narcolepsy. Research suggests that orexin and histamine neurons play...
7 KB (696 words) - 05:38, 25 January 2025
approximately 70,000 orexin-releasing neurons in the lateral hypothalamus, leading to significantly reduced cerebrospinal orexin levels; this reduction...
48 KB (15,286 words) - 13:55, 3 April 2025
Hypnotic (section Orexin antagonists)
needed] Dual orexin receptor antagonists are drugs that block the orexin receptors OX1 and OX2, hence reducing the wakeful effect of the orexin system and...
47 KB (5,049 words) - 06:02, 31 March 2025
(8–9): 405–11. doi:10.1016/j.mad.2011.06.005. PMC 3367503. PMID 21729715. Orexin receptor antagonists a new class of sleeping pill, National Sleep Foundation...
99 KB (8,911 words) - 16:43, 22 March 2025
least some catabolic effects have been discovered, including cytokines, orexin (known as hypocretin), and melatonin.[citation needed] The word catabolism...
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homodimers, and they also heterodimerized with both orexin receptors. ... In conclusion, orexin receptors have a significant propensity to make homo-...
47 KB (4,256 words) - 15:23, 6 September 2024
Tizanidine Xylazine 5-HT2A Melatonin Agomelatine Melatonin Ramelteon Tasimelteon Orexin Daridorexant Lemborexant Suvorexant α2δ VDCC Gabapentin Gabapentin enacarbil...
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"Chapter 6: Widely Projecting Systems: Monoamines, Acetylcholine, and Orexin". In Sydor A, Brown RY (eds.). Molecular Neuropharmacology: A Foundation...
50 KB (4,994 words) - 15:40, 29 March 2025
Oveporexton (category Orexin receptor agonists)
International Nonproprietary Name; developmental code name TAK-861) is an orexin receptor agonist which is under development for the treatment of narcolepsy...
4 KB (179 words) - 10:23, 27 February 2025
decrease mouse sleep in dark phase and reduce hypothalamus level of orexin A, but not orexin B, in mice. List of investigational antidepressants Tropomyosin...
21 KB (2,230 words) - 12:41, 12 March 2025
approximately 70,000 orexin-releasing neurons in the lateral hypothalamus, leading to significantly reduced cerebrospinal orexin levels; this reduction...
63 KB (22,606 words) - 08:10, 3 April 2025
sensed by glucose-inhibited neurons in the lateral hypothalamus. These orexin-expressing neurons appear to be hyperpolarised (inhibited) by a glucose-activated...
17 KB (1,789 words) - 19:55, 8 April 2025
hedonic coldspot. In rats, microinjections of opioids, endocannabinoids, and orexin are capable of enhancing liking reactions in these hotspots. The hedonic...
46 KB (6,343 words) - 03:23, 8 April 2025