Linked Life Data

10766925

Source:http://linkedlifedata.com/resource/pubmed/id/10766925

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2000-6-23
pubmed:abstractText
1. A mutation in the G-protein-linked, inwardly rectifying K+ channel GIRK2 leads to the loss of cerebellar and dopaminergic mesencephalic neurons in weaver mice. The steps leading to cell death are not well understood but may involve constitutive influx of Na+ and Ca2+ into the neurons. 2. We found that resting [Ca2+]i was dramatically higher in cerebellar neurons from weaver mice compared to wild-type neurons. 3. High-K+ stimuli elicited much smaller changes in [Ca2+]i in weaver cerebellar neurons compared to wild-type neurons. 4. weaver cerebellar granule cells could be rescued from cell death by the GIRK2wv cationic channel blocker, QX-314. 5. QX-314 lowered resting intracellular Ca2+ levels in weaver cerebellar granule cells. 6. These results suggest that changes in resting [Ca2+]i levels and alterations in K+ channel function are most likely to contribute to the developmental abnormalities and increased cerebellar cell death observed in weaver mice.
pubmed:grant
pubmed:commentsCorrections
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pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0022-3751
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
524 Pt 2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
447-55
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
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