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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1992-10-22
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pubmed:abstractText |
Repeated episodes of penile erection and yawning can be induced in male rats either by low doses of the dopaminergic agonist apomorphine or by oxytocin given systematically or into a lateral ventricle (ICV), respectively, or after microinjection of the two substances directly in the paraventricular nucleus (PVN) of the hypothalamus. These behavioral responses are prevented in a dose-dependent manner by the ICV administration of the potent oxytocin antagonist d(CH2)5Tyr(Me)-Orn8-vasotocin. In contrast, the PVN injection of d(CH2)5Tyr(Me)-Orn8-vasotocin (1-30 ng), while effective in preventing oxytocin effect, was unable to prevent apomorphine response. On the other hand, apomorphine-, but not oxytocin-induced penile erection and yawning was prevented by electrolytic lesion of the medial septum (MS). Such a lesion decreased oxytocin content by about 45% in the hippocampus. The above results suggest that the hypothalamic-hippocampal oxytocinergic pathway mediates apomorphine-induced penile erection and yawning and that oxytocin is involved at different levels in the CNS for the control of these behavioral responses.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0091-3057
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
42
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
61-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1528948-Animals,
pubmed-meshheading:1528948-Apomorphine,
pubmed-meshheading:1528948-Brain,
pubmed-meshheading:1528948-Dose-Response Relationship, Drug,
pubmed-meshheading:1528948-Hippocampus,
pubmed-meshheading:1528948-Injections,
pubmed-meshheading:1528948-Injections, Intraventricular,
pubmed-meshheading:1528948-Male,
pubmed-meshheading:1528948-Oxytocin,
pubmed-meshheading:1528948-Paraventricular Hypothalamic Nucleus,
pubmed-meshheading:1528948-Penile Erection,
pubmed-meshheading:1528948-Radioimmunoassay,
pubmed-meshheading:1528948-Rats,
pubmed-meshheading:1528948-Rats, Inbred Strains,
pubmed-meshheading:1528948-Yawning
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pubmed:year |
1992
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pubmed:articleTitle |
Hippocampal oxytocin mediates apomorphine-induced penile erection and yawning.
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pubmed:affiliation |
B. B. Brodie Department of Neurosciences, University of Cagliari, Italy.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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