• Thumbnail for Orexin
    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 (6,129 words) - 20:20, 27 June 2024
  • 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...
    19 KB (1,978 words) - 11:32, 1 May 2024
  • 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
  • Thumbnail for Narcolepsy
    clinically characterized by symptoms of EDS and cataplexy, and/or will have CSF orexin levels of less than 110 pg/ml. Cataplexy are transient episodes of aberrant...
    71 KB (8,196 words) - 12:40, 14 July 2024
  • encoded by a different gene (HCRTR1, HCRTR2). Both orexin receptors exhibit a similar pharmacology – the 2 orexin peptides, orexin-A and orexin-B, bind to...
    13 KB (1,234 words) - 02:29, 15 August 2024
  • Thumbnail for Suvorexant
    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 (8,956 words) - 03:07, 14 August 2024
  • Thumbnail for Lateral hypothalamus
    (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
  • that produce the neuropeptide hypocretin (also called orexin), which regulates arousal and has a role in stabilization of the transition between wake and...
    22 KB (2,468 words) - 19:14, 28 July 2024
  • Thumbnail for Hypocretin (orexin) receptor 1
    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
  • 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) - 01:31, 29 December 2023
  • Thumbnail for Daridorexant
    Daridorexant (category Orexin antagonists)
    medication is a dual orexin receptor antagonist (DORA). It acts as a selective dual antagonist of the orexin receptors OX1 and OX2. Daridorexant has a relatively...
    48 KB (4,078 words) - 11:27, 24 July 2024
  • Thumbnail for Hypocretin (orexin) receptor 2
    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
  • Thumbnail for Endocannabinoid system
    colocalized on orexin projection neurons in the lateral hypothalamus and many output structures of the orexin system, where the CB1 and orexin receptor 1...
    67 KB (7,709 words) - 06:15, 27 May 2024
  • Thumbnail for Lemborexant
    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) - 04:21, 27 January 2024
  • neuronal orexin producing cells located in the lateral hypothalamus and a decrease in orexin concentrations in the cerebral spinal fluid. Normally, orexin acts...
    29 KB (2,856 words) - 20:29, 3 April 2024
  • Thumbnail for Danavorexton
    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) - 11:39, 13 January 2024
  • Thumbnail for Seltorexant
    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) - 07:20, 7 January 2024
  • Thumbnail for Dopaminergic pathways
    homodimers, and they also heterodimerized with both orexin receptors. ... In conclusion, orexin receptors have a significant propensity to make homo- and heterodi-/oligomeric...
    47 KB (4,229 words) - 19:27, 10 August 2024
  • Thumbnail for Neurotransmitter
    Systems: Monoamines, Acetylcholine, and Orexin". In Sydor A, Brown RY (eds.). Molecular Neuropharmacology: A Foundation for Clinical Neuroscience (2nd ed...
    94 KB (8,341 words) - 08:44, 9 August 2024
  • Thumbnail for Postprandial somnolence
    blood glucose that occurs after a meal is sensed by glucose-inhibited neurons in the lateral hypothalamus. These orexin-expressing neurons appear to be...
    17 KB (1,778 words) - 16:33, 21 March 2024
  • Thumbnail for Catabolism
    least some catabolic effects have been discovered, including cytokines, orexin (known as hypocretin), and melatonin.[citation needed] The word catabolism...
    6 KB (453 words) - 19:44, 24 December 2023
  • Cerebrospinal orexin can be measured using the lumbar puncture, with CSF orexin levels above 200 pg/ml considered normal. Patients who return a CSF sample...
    49 KB (6,133 words) - 17:01, 26 July 2024
  • Thumbnail for Hypothalamus
    Systems: Monoamines, Acetylcholine, and Orexin". In Sydor A, Brown RY (eds.). Molecular Neuropharmacology: A Foundation for Clinical Neuroscience (2nd ed...
    50 KB (4,969 words) - 00:27, 8 August 2024
  • Thumbnail for Somnifacient
    ramelteon. Dual orexin receptor antagonists are drugs that block the orexin receptors OX1 and OX2, hence reducing the wakeful effect of the orexin system and...
    27 KB (2,930 words) - 09:17, 7 May 2024
  • Thumbnail for Amphetamine
    Amphetamine (category Drugs that are a physiological drug)
    70,000 orexin-releasing neurons in the lateral hypothalamus, leading to significantly reduced cerebrospinal orexin levels; this reduction is a diagnostic...
    273 KB (26,879 words) - 20:36, 4 August 2024
  • Thumbnail for Adderall
    Adderall (category Drugs that are a combination of chemicals)
    70,000 orexin-releasing neurons in the lateral hypothalamus, leading to significantly reduced cerebrospinal orexin levels; this reduction is a diagnostic...
    58 KB (21,539 words) - 12:58, 7 August 2024
  • Thumbnail for Insomnia
    among individuals with sleep disorders to 13.7% in 2010. Orexin receptor antagonists are a more recently introduced class of sleep medications and include...
    124 KB (15,159 words) - 05:55, 1 August 2024
  • Thumbnail for Frisson
    that opioid or orexin stimulations in orbitofrontal cortex and insula causally enhance hedonic "liking" reactions to sweetness and find a third cortical...
    21 KB (2,625 words) - 08:01, 3 August 2024
  • Thumbnail for Eugeroic
    World Sleep Congress Demonstrate Early Signs of Efficacy for TAK-925, a Selective Orexin Type-2 Receptor (OX2R) Agonist, in Patients with Narcolepsy Type 1"...
    11 KB (958 words) - 17:37, 1 April 2024
  • Thumbnail for Lisdexamfetamine
    70,000 orexin-releasing neurons in the lateral hypothalamus, leading to significantly reduced cerebrospinal orexin levels; this reduction is a diagnostic...
    44 KB (14,033 words) - 20:42, 12 August 2024