PMID: 22580536May 15, 2012Paper

Protective effects of histamine H3-receptor ligands in schizophrenic behaviors in experimental models

Pharmacological Reports : PR
D MahmoodMohd Akhtar

Abstract

Schizophrenia (SCZ) afflicts around 1% of the world's population with characteristic symptoms such as hallucinations, delusions, and cognitive disorders. Several experimental studies in the past have indicted brain histaminergic neuronal system involvement in the pathogenesis of psychotic disorders including SCZ. Present study investigates anti-schizophrenic activity using two histamine H(3)-receptor (H(3)R)-antagonists/inverse agonists, ciproxifan (3.0 mg/kg, i.p.) and clobenpropit (15 mg/kg, i.p.), on some of the established animal model of schizophrenia, for example, amphetamine (AMPH) and dizocilpine (MK-801)-induced hyperactivity, apomorphine (APO)-induced climbing behavior, scopolamine and MK-801-induced learning and memory deficits and haloperidol-induced catalepsy including determination of acetylcholinesterase (AChE) activity. Results of the present study demonstrate that ciproxifan and clobenpropitwere able to control AMPH and MK-801-induced hyperlocomotor activities demonstrated as reduced horizontal activity and reduced number of movements made by rats. Further, there was overall reduction in APO-induced climbing behavior. Learning and memory deficits, as evaluated on elevated plus maze, followed by estimation of br...Continue Reading

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Citations

Jan 9, 2014·Pharmacological Reports : PR·Justyna Pełka-WysieckaJerzy Samochowiec
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