Ciproxifan Systematic (IUPAC) name cyclopropyl 4-(3-(1H-imidazol-4-yl)propyloxy)phenyl ketone Clinical data Pregnancy cat. ? Legal status ? Identifiers ATC code None PubChem IUPHAR ligand ChEMBL Chemical data Formula C16H18N2O2 Mol. mass 270.33 SMILES & (what is this?)
The histamine H3 receptor is an inhibitory autoreceptor located on histaminergic nerve terminals, and is believed to be involved in modulating the release of histamine in the brain. Histamine has an excitatory effect in the brain via H1 receptors in the cerebral cortex, and so drugs such as ciproxifan which block the H3 receptor and consequently allow more histamine to be released have an alertness-promoting effect.
Ciproxifan produces wakefulness and attentiveness in animal studies, and produced cognitive enhancing effects without prominent stimulant effects at relatively low levels of receptor occupancy, and pronounced wakefulness at higher doses. It has therefore been proposed as a potential treatment for sleep disorders such as narcolepsy and to improve vigilance in old age, particularly in the treatment of conditions such as Alzheimer's disease. It also potentiated the effects of antipsychotic drugs, and has been suggested as an adjuvant treatment for schizophrenia.
- ^ Passani MB, Lin JS, Hancock A, Crochet S, Blandina P (December 2004). "The histamine H3 receptor as a novel therapeutic target for cognitive and sleep disorders". Trends Pharmacol. Sci. 25 (12): 618–25. doi:10.1016/j.tips.2004.10.003. PMID 15530639.
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- ^ Parmentier R, Anaclet C, Guhennec C, Brousseau E, Bricout D, Giboulot T, Bozyczko-Coyne D, Spiegel K, Ohtsu H, Williams M, Lin JS (April 2007). "The brain H3-receptor as a novel therapeutic target for vigilance and sleep-wake disorders". Biochem. Pharmacol. 73 (8): 1157–71. doi:10.1016/j.bcp.2007.01.002. PMID 17288995.
- ^ Le S, Gruner JA, Mathiasen JR, Marino MJ, Schaffhauser H (June 2008). "Correlation between ex vivo receptor occupancy and wake-promoting activity of selective H3 receptor antagonists". J. Pharmacol. Exp. Ther. 325 (3): 902–9. doi:10.1124/jpet.107.135343. PMID 18305012.
- ^ LLigneau X, Lin J, Vanni-Mercier G, Jouvet M, Muir JL, Ganellin CR, Stark H, Elz S, Schunack W, Schwartz J (November 1998). "Neurochemical and behavioral effects of ciproxifan, a potent histamine H3-receptor antagonist". J. Pharmacol. Exp. Ther. 287 (2): 658–66. PMID 9808693. http://jpet.aspetjournals.org/content/287/2/658.abstract.
- ^ Witkin JM, Nelson DL (July 2004). "Selective histamine H3 receptor antagonists for treatment of cognitive deficiencies and other disorders of the central nervous system". Pharmacol. Ther. 103 (1): 1–20. doi:10.1016/j.pharmthera.2004.05.001. PMID 15251226.
- ^ Pillot C, Ortiz J, Héron A, Ridray S, Schwartz JC, Arrang JM (August 2002). "Ciproxifan, a histamine H3-receptor antagonist/inverse agonist, potentiates neurochemical and behavioral effects of haloperidol in the rat". J. Neurosci. 22 (16): 7272–80. PMID 12177222. http://www.jneurosci.org/cgi/content/abstract/22/16/7272.
Psychostimulants, agents used for ADHD, and nootropics (N06B) Centrally acting sympathomimetics Xanthine derivatives Glutamate receptor Eugeroics / Benzhydryl compounds Histamine H3 receptor antagonists GABAA α5 inverse agonists Dopamine D1 receptor agonists α7 nicotinic agonists / PAMsAR-R17779 • PNU-282,987 • SSR-180,711 Prolyl endopeptidase inhibitorsS-17092 Alpha-adrenergic agonists Other psychostimulants and nootropicsAcetylcarnitine • Adafenoxate • Bifemelane • Carbenoxolone • Citicoline • Cyprodenate • Ensaculin • Idebenone • Ispronicline • Deanol • Dimebon • Fipexide • Leteprinim • Linopirdine • Meclofenoxate • Nizofenone • P7C3 • Pirisudanol • Pyritinol • Rubidium • Sulbutiamine • Taltirelin • Tricyanoaminopropene • Vinpocetine This drug article relating to the nervous system is a stub. You can help Wikipedia by expanding it.