rdf:type |
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lifeskim:mentions |
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pubmed:issue |
4
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pubmed:dateCreated |
1988-3-7
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pubmed:abstractText |
Postsynaptic dopaminergic behavioural effects of D-2 agonists can be promoted by concomitant D-1 receptor activation. The present experiment explored whether such effects could be elicited by the putative autoreceptor-selective D-2 agonist B-HT 920, when combined with the D-1 agonist SK&F 38393. Except for occasional jerks induced by B-HT 920, neither agonist caused significant dopaminergic stimulation when given separately, whereas combined treatment with SK&F 38393 and B-HT 920 induced clear-cut motor activation--particularly focused stereotyped licking and sniffing--in reserpine/AMT-pretreated rats. Both the D-1 antagonist SCH 23390 and the D-2 antagonist spiperone abolished these effects, while the SK&F/B-HT-induced stimulation was not significantly affected by the alpha 2-blocker idazoxan. It appears that classical postsynaptic DA receptor-stimulatory properties of B-HT 920 can indeed be demonstrated, provided that sufficient D-1 receptor tone prevails.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/2,3,4,5-Tetrahydro-7,8-dihydroxy-1-p...,
http://linkedlifedata.com/resource/pubmed/chemical/Adrenergic alpha-Agonists,
http://linkedlifedata.com/resource/pubmed/chemical/Appetite Depressants,
http://linkedlifedata.com/resource/pubmed/chemical/Azepines,
http://linkedlifedata.com/resource/pubmed/chemical/Benzazepines,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Dopamine,
http://linkedlifedata.com/resource/pubmed/chemical/Spiperone,
http://linkedlifedata.com/resource/pubmed/chemical/talipexole
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pubmed:status |
MEDLINE
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pubmed:issn |
0033-3158
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:volume |
93
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
534-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2893419-2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine,
pubmed-meshheading:2893419-Adrenergic alpha-Agonists,
pubmed-meshheading:2893419-Animals,
pubmed-meshheading:2893419-Appetite Depressants,
pubmed-meshheading:2893419-Azepines,
pubmed-meshheading:2893419-Benzazepines,
pubmed-meshheading:2893419-Male,
pubmed-meshheading:2893419-Motor Activity,
pubmed-meshheading:2893419-Rats,
pubmed-meshheading:2893419-Receptors, Dopamine,
pubmed-meshheading:2893419-Spiperone,
pubmed-meshheading:2893419-Stereotyped Behavior,
pubmed-meshheading:2893419-Synapses
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pubmed:year |
1987
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pubmed:articleTitle |
Postsynaptic dopamine (DA) receptor stimulator properties of the putative DA autoreceptor-selective agonist B-HT 920 uncovered by co-treatment with the D-1 agonist SK&F 38393.
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pubmed:affiliation |
Department of Pharmacology, University of Göteborg, Sweden.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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