Reference : Effects of the H(3) receptor inverse agonist thioperamide on cocaine-induced locomoti...
Scientific journals : Article
Human health sciences : Pharmacy, pharmacology & toxicology
Human health sciences : Psychiatry
Social & behavioral sciences, psychology : Neurosciences & behavior
http://hdl.handle.net/2268/6676
Effects of the H(3) receptor inverse agonist thioperamide on cocaine-induced locomotion in mice: role of the histaminergic system and potential pharmacokinetic interactions.
English
Brabant, Christian mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Biochimie et physiologie humaine et pathologique >]
Alleva, Livia mailto [Université de Liège - ULg > Département des sciences cognitives > Neuroscience comportementale et psychopharmacologie expér. >]
Grisar, Thierry mailto [Centre Hospitalier Universitaire de Liège - CHU > > Neurologie Sart Tilman >]
Quertemont, Etienne mailto [Université de Liège - ULg > Département des sciences cognitives > Psychologie quantitative >]
Lakaye, Bernard mailto [Université de Liège - ULg > Département des sciences biomédicales et précliniques > Biochimie et physiologie humaine et pathologique >]
Ohtsu, Hiroshi [Tohoku University > Department of Quantum Science and Energy Engineering > > >]
Lin, Jian-Sheng [Université Claude Bernard - Lyon 1 - UCLB > Département de Médecine Expérimentale > > >]
Jatlow, Peter [Yale University > Department of Laboratory Medicine > > >]
Picciotto, Marina R [Yale University > Department of Psychiatry > > >]
Tirelli, Ezio mailto [Université de Liège - ULg > Département des sciences cognitives > Neuroscience comportementale et psychopharmacologie expér. >]
2009
Psychopharmacology
Springer Verlag
202
4
673-87
Yes (verified by ORBi)
International
0033-3158
Berlin
Germany
[en] Cocaine ; Histamine ; Thioperamide
[fr] Immepip ; A-331440 ; H3 receptor ; Locomotion ; Knockout mouse
[en] RATIONALE: Previous studies have shown that intraperitoneal injections of thioperamide, an imidazole-based H(3) receptor inverse agonist that enhances histamine release in the brain, potentiate cocaine-induced hyperlocomotion. The present study examined the involvement of the histaminergic system in these effects of thioperamide in mice. MATERIALS AND METHODS: We investigated whether immepip, a selective H(3) agonist, could reverse the potentiating effects of thioperamide. Moreover, the non-imidazole H(3) inverse agonist A-331440 was tested on the locomotor effects of cocaine. Using high-performance liquid chromatography with ultraviolet detection, cocaine plasma concentrations were measured to study potential drug-drug interactions between thioperamide and cocaine. Finally, thioperamide was tested on the locomotor effects of cocaine in histamine-deficient knockout mice in order to determine the contribution of histamine to the modulating effects of thioperamide. RESULTS: Thioperamide potentiated cocaine-induced hyperlocomotion in normal mice, and to a higher extent, in histamine-deficient knockout mice. A-331440 only slightly affected the locomotor effects of cocaine. Immepip did not alter cocaine-induced hyperactivity but significantly reduced the potentiating actions of thioperamide on cocaine's effects. Finally, plasma cocaine concentrations were more elevated in mice treated with thioperamide than in mice that received cocaine alone. CONCLUSIONS: The present results indicate that histamine released by thioperamide through the blockade of H(3) autoreceptors is not involved in the ability of this compound to potentiate cocaine induced-hyperactivity. Our data suggest that thioperamide, at least at 10 mg/kg, increases cocaine-induced locomotion through the combination of pharmacokinetic effects and the blockade of H(3) receptors located on non-histaminergic neurons.
Centre de Neurosciences Cognitives et Comportementales
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; National Institutes of Health - NIH
Researchers ; Professionals
http://hdl.handle.net/2268/6676
10.1007/s00213-008-1345-y

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