Source:http://linkedlifedata.com/resource/pubmed/id/18036151
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
2008-2-21
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pubmed:abstractText |
Serotonin (5-HT) is an intrinsic modulator of neural network excitation states in gastropod molluscs. 5-HT and related indole metabolites were measured in single, well-characterized serotonergic neurons of the feeding motor network of the predatory sea-slug Pleurobranchaea californica. Indole amounts were compared between paired hungry and satiated animals. Levels of 5-HT and its metabolite 5-HT-SO4 in the metacerebral giant neurons were observed in amounts approximately four-fold and two-fold, respectively, below unfed partners 24 h after a satiating meal. Intracellular levels of 5-hydroxyindole acetic acid and of free tryptophan did not differ significantly with hunger state. These data demonstrate that neurotransmitter levels and their metabolites can vary in goal-directed neural networks in a manner that follows internal state.
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pubmed:grant | |
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 |
Mar
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pubmed:issn |
1471-4159
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
104
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1358-63
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pubmed:meshHeading |
pubmed-meshheading:18036151-Animals,
pubmed-meshheading:18036151-Feeding Behavior,
pubmed-meshheading:18036151-Ganglia, Invertebrate,
pubmed-meshheading:18036151-Hunger,
pubmed-meshheading:18036151-Hydroxyindoleacetic Acid,
pubmed-meshheading:18036151-Nerve Net,
pubmed-meshheading:18036151-Neurons,
pubmed-meshheading:18036151-Pleurobranchaea,
pubmed-meshheading:18036151-Satiation,
pubmed-meshheading:18036151-Serotonin,
pubmed-meshheading:18036151-Tryptophan
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pubmed:year |
2008
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pubmed:articleTitle |
5-HT and 5-HT-SO4, but not tryptophan or 5-HIAA levels in single feeding neurons track animal hunger state.
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pubmed:affiliation |
Department of Molecular & Integrative Physiology, Department of Chemistry and Beckman Institute, University of Illinois, Urbana, Illinois, USA.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, Non-P.H.S.,
Research Support, N.I.H., Extramural
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