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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1988-2-12
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pubmed:abstractText |
Ca2+ transport was studied in synaptosomes prepared from normal cats and cats with GM1 gangliosidosis. The influx of Ca2+ was found to be a biphasic process in synaptosomes from both GM1 mutant and normal cats. Both the fast and slow phases of voltage-dependent Ca2+ uptake were significantly reduced in cats with the lysosomal storage disease, however the inhibitory mechanisms differed. The fast phase of Ca2+ uptake was inhibited uncompetitively, whereas the slow phase was inhibited competitively. In addition, Na+-dependent Ca2+ efflux was reduced significantly in cats with GM1 gangliosidosis. Since it is well established that maintenance of Ca2+ homeostasis is essential for normal neuronal function, a ganglioside-induced disruption of Ca2+ transport across synaptic membranes may be responsible, in part, for the neuronal dysfunction characteristic of GM1 gangliosidosis.
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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 |
Oct
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pubmed:issn |
0006-8993
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
20
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pubmed:volume |
424
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
169-76
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3121133-Animals,
pubmed-meshheading:3121133-Calcium,
pubmed-meshheading:3121133-Calcium Radioisotopes,
pubmed-meshheading:3121133-Cats,
pubmed-meshheading:3121133-Choline O-Acetyltransferase,
pubmed-meshheading:3121133-G(M1) Ganglioside,
pubmed-meshheading:3121133-Gangliosidoses,
pubmed-meshheading:3121133-Kinetics,
pubmed-meshheading:3121133-Motor Cortex,
pubmed-meshheading:3121133-Mutation,
pubmed-meshheading:3121133-Synaptosomes
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pubmed:year |
1987
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pubmed:articleTitle |
Reduced Ca2+ flux in synaptosomes from cats with GM1 gangliosidosis.
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pubmed:affiliation |
Department of Pharmacology, University of Alabama at Birmingham 35294.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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