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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1999-3-25
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pubmed:abstractText |
Focal cortical lesions are associated with a functional downregulation of the GABAergic system in perilesional tissue lasting (at least) several weeks. The molecular mechanisms underlying this phenomenon are still poorly understood. Here we used RT-PCR to investigate whether mRNA-levels of two alpha-subunits of the GABAA-receptor (alpha1- and alpha2-subunits) change following ischemic cortical lesioning. The results show that 7 days after lesion induction mRNA-levels for both the alpha1- and alpha2-subunits are increased threefold in perilesional tissue ipsilateral, but not contralateral to the lesion. Taken together with the results of a previous immunohistochemical study in which a moderate decrease of the alpha1-subunit-protein and no change for the alpha2-subunit [T. Neumann-Haefelin, J.F. Staiger, C. Redecker, K. Zilles, J.M. Fritschy, H. Mohler, O.W. Witte, Immunohistochemical evidence for dysregulation of the GABAergic system ipsilateral to photochemically induced cortical infarcts in rats. Neuroscience (Oxford) 87 (4) (1998) 871-879] was observed, this is interpreted as a partial block of translation in the perilesional tissue surrounding cortical ischemic lesions.
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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 |
Jan
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pubmed:issn |
0006-8993
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pubmed:author | |
pubmed:copyrightInfo |
Copyright 1999 Elsevier Science B.V.
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pubmed:issnType |
Print
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pubmed:day |
16
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pubmed:volume |
816
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
234-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9878756-Animals,
pubmed-meshheading:9878756-Brain Ischemia,
pubmed-meshheading:9878756-Cerebral Cortex,
pubmed-meshheading:9878756-Functional Laterality,
pubmed-meshheading:9878756-Male,
pubmed-meshheading:9878756-RNA, Messenger,
pubmed-meshheading:9878756-Rats,
pubmed-meshheading:9878756-Rats, Wistar,
pubmed-meshheading:9878756-Receptors, GABA-A,
pubmed-meshheading:9878756-Reverse Transcriptase Polymerase Chain Reaction,
pubmed-meshheading:9878756-Time Factors,
pubmed-meshheading:9878756-Up-Regulation
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pubmed:year |
1999
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pubmed:articleTitle |
Upregulation of GABAA-receptor alpha1- and alpha2-subunit mRNAs following ischemic cortical lesions in rats.
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pubmed:affiliation |
Neurologische Klinik, Heinrich-Heine-Universität, Moorenstr. 5, 40225, Düsseldorf, Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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