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Orexin-A, also known as hypocretin-1, is a naturally occurring neuropeptide and orexin isoform. The orexinergic nucleus in the lateral hypothalamus is the primary orexin projection system in the brain.
Orexin (/ ɒ ˈ r ɛ k s ɪ n /), also known as hypocretin, is a neuropeptide that regulates arousal, wakefulness, and appetite. [5] It exists in the forms of orexin-A and orexin-B.The most common form of narcolepsy, type 1, in which the individual experiences brief losses of muscle tone ("drop attacks" or cataplexy), is caused by a lack of orexin in the brain due to destruction of the cells ...
Daridorexant acts as a selective dual antagonist of the orexin (hypocretin) receptors OX 1 and OX 2. [5] The affinities (K i ) of daridorexant for the orexin receptors are 0.47 nM for the OX 1 receptor and 0.93 nM for the OX 2 receptor. [ 1 ]
Orexin, otherwise known as hypocretin, is a neuropeptide that acts within the brain to regulate appetite and wakefulness as well as a number of other cognitive and physiological processes. [ 27 ] [ 38 ] [ 39 ] Loss of these orexin-producing neurons causes narcolepsy and most individuals with narcolepsy have a reduced number of these neurons in ...
The orexin receptor (also referred to as the hypocretin receptor) is a G-protein-coupled receptor that binds the neuropeptide orexin. There are two variants, OX 1 and OX 2 , each encoded by a different gene ( HCRTR1 , HCRTR2 ).
230777 Ensembl ENSG00000121764 ENSMUSG00000028778 UniProt O43613 P58307 RefSeq (mRNA) NM_001525 NM_001163027 NM_198959 NM_001305392 NM_001357258 RefSeq (protein) NP_001516 NP_001156499 NP_001292321 NP_945197 NP_001344187 Location (UCSC) Chr 1: 31.62 – 31.63 Mb Chr 4: 130.02 – 130.03 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Orexin receptor type 1 (Ox1R or OX 1), also known ...
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 orexin receptor antagonist or SORA) or both (dual orexin receptor antagonis or DORA) of the orexin receptors, OX 1 and OX 2. [1]
Orexin receptor type 2 (Ox2R or OX 2), also known as hypocretin receptor type 2 (HcrtR2), is a protein that in humans is encoded by the HCRTR2 gene. [5] It should not be confused for the protein CD200R1 which shares the alias OX2R but is a distinct, unrelated gene located on the human chromosome 3.