Abstract：
:The antinociceptive effect of the D(2) antagonist prochlorperazine was examined in the mouse hot-plate and abdominal constriction tests. Prochlorperazine (1-2 mg kg(-1) s.c./i.p.) produced an increase of the pain threshold in the mouse hot-plate test. The antinociception produced by prochlorperazine was prevented by the D(2) selective agonist quinpirole, the unselective muscarinic antagonist atropine, the M(1) selective antagonist pirenzepine, and by the choline uptake inhibitor hemicholinium-3 hydrobromide (HC-3). Moreover, prochlorperazine antinociception was abolished by pretreatment with an aODN against the M(1) receptor subtype, administered at the dose of 2 nmol per single i.c.v. injection. By contrast the analgesic effect of prochlorperazine was not prevented by the opioid antagonist naloxone and the GABA(B) antagonist CGP-35348. Prochlorperazine also elicited a dose-dependent increase in ACh release from rat cerebral cortex. In the antinociceptive dose-range, prochlorperazine did not impair mouse performance evaluated by the rota-rod and hole-board tests. On the basis of the above data, it can be postulated that prochlorperazine exerted an antinociceptive effect mediated by a central cholinergic mechanism.
journal_name
Pharmacol Resjournal_title
Pharmacological researchauthors
Ghelardini C,Galeotti N,Uslenghi C,Grazioli I,Bartolini Adoi
10.1016/j.phrs.2004.02.005keywords:
subject
Has Abstractpub_date
2004-09-01 00:00:00pages
351-8issue
3eissn
1043-6618issn
1096-1186pii
S1043661804000507journal_volume
50pub_type
杂志文章abstract：:The potential drug-to-drug interaction between darunavir and raltegravir in the setting of HIV infection is a highly debated issue still unresolved. In the present study we have evaluated the pharmacokinetics of darunavir and ritonavir in 53 HIV-1 infected patients with or without concomitant raltegravir administratio...
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