Source:http://linkedlifedata.com/resource/pubmed/id/18798269
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
12
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pubmed:dateCreated |
2008-10-15
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pubmed:abstractText |
The expression of CB2 cannabinoid receptors (CB2-Rs) in the brain and their neuronal function has now attracted research interest, since we and others have demonstrated the presence of CB2-Rs in neuronal and glial cells in the brain. In this study, we show the subcellular distribution of CB2-Rs in neuronal, glial, and endothelial cells in the rat hippocampus using immunohistochemical electron microscopy. Brain sections from the hippocampus were immunolabeled for CB2-R, visualized, and analyzed by electron microscopy. We found that in neurons, CB2-R immunoreactivity is present in the cell body as well as in large and medium-sized dendrites. In the soma, the CB2-R labeling is associated with the rough endoplasmic reticulum and Golgi apparatus demonstrating that CB2-Rs are synthesized by hippocampal neurons. CB2-R labeling in dendrites was observed in the cytoplasm and associated with the plasma membrane near the area of synaptic contact with axon terminals indicating a postsynaptic distribution of these receptors. In CB2-R immunoreactive glial and endothelial cells, the labeling was also found to be associated with the plasma membrane. These results provide the first ultrastructural evidence that CB2-Rs are mainly postsynaptic in the rat hippocampus.
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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 |
Dec
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pubmed:issn |
1098-2396
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pubmed:author | |
pubmed:copyrightInfo |
(c) 2008 Wiley-Liss, Inc.
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pubmed:issnType |
Electronic
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pubmed:volume |
62
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
944-9
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pubmed:meshHeading |
pubmed-meshheading:18798269-Amino Acid Sequence,
pubmed-meshheading:18798269-Animals,
pubmed-meshheading:18798269-Excitatory Postsynaptic Potentials,
pubmed-meshheading:18798269-Hippocampus,
pubmed-meshheading:18798269-Male,
pubmed-meshheading:18798269-Microscopy, Immunoelectron,
pubmed-meshheading:18798269-Molecular Sequence Data,
pubmed-meshheading:18798269-Rats,
pubmed-meshheading:18798269-Rats, Sprague-Dawley,
pubmed-meshheading:18798269-Receptor, Cannabinoid, CB2,
pubmed-meshheading:18798269-Synaptic Membranes
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pubmed:year |
2008
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pubmed:articleTitle |
Postsynaptic localization of CB2 cannabinoid receptors in the rat hippocampus.
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pubmed:affiliation |
Instituto de Biología Celular y Neurociencia, Facultad de Medicina, Universidad de Buenos Aires, Argentina.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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