Abstract:
:Previous studies showed that diphenidol was effective on emetogens-induced pica, eating of non-nutritive substances, in rats, a model analogous to emesis in other species. We evaluated the actual antiemetic activity of diphenidol against four emetic stimuli in the dog and ferret, animals that possess an emetic reflex. In dogs, emetic responses to apomorphine were significantly prevented by diphenidol (3.2 mg/kg, i.v.), whereas diphenidol (3.2 mg/kg, i.v. x 2) showed a weak inhibition to the vomiting evoked by cisplatin. In ferrets, diphenidol (10 mg/kg, i.p.) exhibited a weak antiemetic activity on the emesis induced by copper sulfate and had no activity on emesis by loperamide. On the other hand, CP-122,721, a NK1-receptor antagonist, significantly reduced the emetic episodes to all four stimuli. These results suggest that the prediction of antiemetic activity of compounds in animals lacking an emetic reflex does not always correspond with actual antiemetic activity.
journal_name
J Pharmacol Scijournal_title
Journal of pharmacological sciencesauthors
Nakayama H,Yamakuni H,Nakayama A,Maeda Y,Imazumi K,Matsuo M,Mutoh Sdoi
10.1254/jphs.fpj04035xsubject
Has Abstractpub_date
2004-11-01 00:00:00pages
301-6issue
3eissn
1347-8613issn
1347-8648pii
JST.JSTAGE/jphs/FPJ04035Xjournal_volume
96pub_type
杂志文章abstract::Although it is well known that histamine induces gastric mucosal lesions in laboratory animals, the fundamental mechanisms remain unclear. In order to further analyze the vascular mechanisms underlying histamine-induced lesions, a new model was developed in the glandular stomach via administration of histamine (40 mg/...
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abstract::Pulmonary arterial hypertension (PAH) is defined as elevation of mean pulmonary arterial pressure to ≥25 mmHg within the low pressure pulmonary circulatory system. PAH is characterized by obstructive vascular remodeling, partially due to excessive pulmonary arterial smooth muscle cell (PASMC) proliferation. Puerarin i...
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pub_type: 临床试验,杂志文章
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journal_title:Journal of pharmacological sciences
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更新日期:2012-01-01 00:00:00
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pub_type: 杂志文章,评审
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doi:10.1254/jphs.08173fp
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pub_type: 杂志文章
doi:10.1254/jphs.fpj04033x
更新日期:2004-11-01 00:00:00
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更新日期:2005-08-01 00:00:00
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journal_title:Journal of pharmacological sciences
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更新日期:2011-01-01 00:00:00
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journal_title:Journal of pharmacological sciences
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