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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4 Pt 2
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pubmed:dateCreated |
1986-5-13
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pubmed:abstractText |
Using slice preparations we investigated the effect of 5-hydroxytryptamine (5-HT) and norepinephrine (NE) on thermoresponsive neurons in the hypothalamus, midbrain, and the medulla oblongata. NE inhibits the activities of most of the warm-responsive neurons (11 out of 13 neurons) but 5-HT activates the warm-responsive neurons (10 out of 11 neurons) in the hypothalamus. However, the direction of neuronal response of the midbrain was opposite of that in the hypothalamus when 5-HT was applied. In the medulla oblongata, 5-HT facilitates both warm- and cold-responsive neurons and NE facilitates or inhibits these neurons in equal proportions. Furthermore, the dose-response relationships were determined using slice preparations. In the hypothalamus and the midbrain, NE and 5-HT started to effect the warm-responsive neurons at the minimum concentration of 5 X 10(-6) M, whereas the maximum responses were obtained at the concentration of 5 X 10(-5) M. In the medulla oblongata, NE or 5-HT changed the activities of the warm-responsive neurons in the range of 5 X 10(-5) to 10(-3) M or 10(-6) to 10(-5) M, respectively. It is concluded that the thermoresponsive neurons respond to 5-HT and NE in different ways, at both various levels in the central nervous system and the applied concentration of amines.
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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 |
Apr
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pubmed:issn |
0002-9513
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
250
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
R553-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3963225-Action Potentials,
pubmed-meshheading:3963225-Animals,
pubmed-meshheading:3963225-Body Temperature Regulation,
pubmed-meshheading:3963225-Brain Stem,
pubmed-meshheading:3963225-Dose-Response Relationship, Drug,
pubmed-meshheading:3963225-Hypothalamus,
pubmed-meshheading:3963225-Male,
pubmed-meshheading:3963225-Medulla Oblongata,
pubmed-meshheading:3963225-Mesencephalon,
pubmed-meshheading:3963225-Norepinephrine,
pubmed-meshheading:3963225-Raphe Nuclei,
pubmed-meshheading:3963225-Rats,
pubmed-meshheading:3963225-Serotonin
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pubmed:year |
1986
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pubmed:articleTitle |
Effect of amine on temperature-responsive neuron in slice preparation of rat brain stem.
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pubmed:publicationType |
Journal Article,
In Vitro
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