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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-3
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pubmed:dateCreated |
1993-3-2
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pubmed:abstractText |
The intracerebroventricular (i.c.v.) injection of clonidine, xylazine, adrenaline and methoxamine elicited dose-dependent vomiting in cats in that order of potency. The vomiting induced by clonidine, xylazine and adrenaline was antagonized by i.c.v. yohimbine and phentolamine possessing alpha 2-adrenoceptor-blocking activity, but not by prazosin showing alpha 1-adrenoceptor-blocking activity. In contrast, methoxamine-induced vomiting was antagonized by prazosin, but not by yohimbine. The vomiting induced by xylazine and adrenaline was not prevented by i.c.v. 6-hydroxydopamine treatment, but was prevented by i.c.v. reserpine treatment. Ablation of the area postrema with some damage to extremely adjacent areas abolished the vomiting induced by each alpha-adrenoceptor agonist. These results indicate that both central alpha 1- and alpha 2-adrenoceptors are involved in the emetic pathway in cats, although alpha 2-adrenoceptors seem to have the main role. It is also suggested that monoamines, and in particular 5-hydroxytryptamine in the brain, are involved in the regulation of alpha-adrenoceptor-mediated vomiting.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Adrenergic alpha-Agonists,
http://linkedlifedata.com/resource/pubmed/chemical/Adrenergic alpha-Antagonists,
http://linkedlifedata.com/resource/pubmed/chemical/Clonidine,
http://linkedlifedata.com/resource/pubmed/chemical/Epinephrine,
http://linkedlifedata.com/resource/pubmed/chemical/Methoxamine,
http://linkedlifedata.com/resource/pubmed/chemical/Oxidopamine,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Adrenergic, alpha,
http://linkedlifedata.com/resource/pubmed/chemical/Reserpine,
http://linkedlifedata.com/resource/pubmed/chemical/Xylazine
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
0014-2999
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
|
pubmed:volume |
229
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
241-51
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1362706-Adrenergic alpha-Agonists,
pubmed-meshheading:1362706-Adrenergic alpha-Antagonists,
pubmed-meshheading:1362706-Animals,
pubmed-meshheading:1362706-Cats,
pubmed-meshheading:1362706-Clonidine,
pubmed-meshheading:1362706-Dose-Response Relationship, Drug,
pubmed-meshheading:1362706-Epinephrine,
pubmed-meshheading:1362706-Female,
pubmed-meshheading:1362706-Male,
pubmed-meshheading:1362706-Methoxamine,
pubmed-meshheading:1362706-Oxidopamine,
pubmed-meshheading:1362706-Receptors, Adrenergic, alpha,
pubmed-meshheading:1362706-Reserpine,
pubmed-meshheading:1362706-Vomiting,
pubmed-meshheading:1362706-Xylazine
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pubmed:year |
1992
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pubmed:articleTitle |
Central alpha-adrenoceptor subtypes involved in the emetic pathway in cats.
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pubmed:affiliation |
Department of Veterinary Surgery, School of Veterinary Medicine and Animal Sciences, Kitasato University, Aomori, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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