Source:http://linkedlifedata.com/resource/pubmed/id/11529274
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2001-8-31
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pubmed:abstractText |
The mesotelencephalic dopamine system is genetically variable and affects motor behavior, motivation, and learning. Here we examine the genetic variation of mesencephalic DA neuron number in a quasi-congenic RQI mouse strain and its background partner and in a recombinant inbred strain with different levels of mesencephalic tyrosine hydroxylase activity (TH/MES). We used B6.Cb4i5-alpha6/Vad, C57BL/6By, and CXBI, which are known to express high, intermediate, and low levels of TH/MES, respectively. Unbiased stereological sampling with optical disector counting methods were employed to estimate the number of TH-positive neurons in the A8-A9-A10 cell groups. Morphometric studies on the mesencephalic dopamine cell groups indicated that male mice of the B6.Cb4i5-alpha6/Vad strain were endowed with a significantly lower number of TH-positive cells than CXBI mice. In all strains studied, the right retrorubral field (A8 area) had a higher number of dopamine neurons compared to the left A8 area. The results suggest an inverse relationship between TH/MES and number of dopamine neurons in the A9-A10 cell groups and significant lateral asymmetry in the A8 cell group. A detailed anatomical atlas of the mesencephalic A8-A9-A10 dopaminergic cell groups in the mouse is also presented to facilitate the assignment of TH-positive neurons to specific cell groups.
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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 |
Jan
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pubmed:issn |
0001-8244
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
31
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
47-59
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:11529274-Animals,
pubmed-meshheading:11529274-Brain Mapping,
pubmed-meshheading:11529274-Crosses, Genetic,
pubmed-meshheading:11529274-Dopamine,
pubmed-meshheading:11529274-Female,
pubmed-meshheading:11529274-Genetic Variation,
pubmed-meshheading:11529274-Male,
pubmed-meshheading:11529274-Mesencephalon,
pubmed-meshheading:11529274-Mice,
pubmed-meshheading:11529274-Mice, Inbred Strains,
pubmed-meshheading:11529274-Neurons,
pubmed-meshheading:11529274-Quantitative Trait, Heritable,
pubmed-meshheading:11529274-Recombination, Genetic,
pubmed-meshheading:11529274-Tyrosine 3-Monooxygenase
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pubmed:year |
2001
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pubmed:articleTitle |
The midbrain dopaminergic system: anatomy and genetic variation in dopamine neuron number of inbred mouse strains.
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pubmed:affiliation |
Center for Molecular and Behavioral Neuroscience, Rutgers University, Newark, New Jersey 07102, USA. zaborszk@axon.rutgers.edu
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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