Source:http://linkedlifedata.com/resource/pubmed/id/10336129
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1999-7-15
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pubmed:abstractText |
We investigated the role of alpha2C-adrenoceptors in the modulation of spatial and non-spatial navigation behaviour. Alpha2C-adrenoceptor overexpressing mice developed an ineffective thigmotaxic search pattern characterized by swimming close to the pool walls during both spatial and non-spatial water maze training. A subtype-non-selective alpha2-adrenoceptor antagonist, atipamezole (1000 microg/kg, s.c.), fully reversed this impairment in their search strategy. Withdrawal of atipamezole at the end of spatial training resulted in an immediate disruption of the search pattern in alpha2C-adrenoceptor overexpressing mice. The swimming pattern of alpha2C-adrenoceptor overexpressing mice during a five day free swimming period was normal, when no cognitive component was required. Diazepam (0.3 and 1.0 mg/kg, i.p.), neither improved the accuracy in finding the platform nor decreased thigmotaxis. These results suggest that alpha2C-adrenoceptors may modulate the execution of complex navigation patterns.
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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-Antagonists,
http://linkedlifedata.com/resource/pubmed/chemical/Anti-Anxiety Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Diazepam,
http://linkedlifedata.com/resource/pubmed/chemical/Imidazoles,
http://linkedlifedata.com/resource/pubmed/chemical/Receptors, Adrenergic, alpha,
http://linkedlifedata.com/resource/pubmed/chemical/atipamezole
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pubmed:status |
MEDLINE
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pubmed:issn |
0306-4522
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
88
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1187-98
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:10336129-Adrenergic alpha-Antagonists,
pubmed-meshheading:10336129-Animals,
pubmed-meshheading:10336129-Anti-Anxiety Agents,
pubmed-meshheading:10336129-Diazepam,
pubmed-meshheading:10336129-Escape Reaction,
pubmed-meshheading:10336129-Female,
pubmed-meshheading:10336129-Imidazoles,
pubmed-meshheading:10336129-Maze Learning,
pubmed-meshheading:10336129-Mice,
pubmed-meshheading:10336129-Mice, Inbred Strains,
pubmed-meshheading:10336129-Receptors, Adrenergic, alpha,
pubmed-meshheading:10336129-Spatial Behavior,
pubmed-meshheading:10336129-Swimming
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pubmed:year |
1999
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pubmed:articleTitle |
Alpha2C-adrenoceptor overexpression disrupts execution of spatial and non-spatial search patterns.
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pubmed:affiliation |
Department of Neurology and Neuroscience, University of Kuopio, Finland.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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