Source:http://linkedlifedata.com/resource/pubmed/id/12625620
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2003-3-10
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pubmed:abstractText |
The heart's pacemaker, the sinoatrial node, does not consist of a group of uniform sinoatrial node cells embedded in atrial muscle. Instead, it is a heterogeneous tissue with multiple cell types and a complex structure. Evidence suggests that from the periphery to the center of the sinoatrial node, there is a gradient in action potential shape, pacemaking, ionic current densities, connexin expression, Ca2+ handling, myofilament density, and cell size. This complexity may be necessary for the sinoatrial node to pacemake under diverse conditions, drive the more hyperpolarized atrial muscle, and resist proarrhythmic perturbations.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
1045-3873
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
14
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
104-6
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pubmed:dateRevised |
2005-11-16
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pubmed:meshHeading |
pubmed-meshheading:12625620-Action Potentials,
pubmed-meshheading:12625620-Animals,
pubmed-meshheading:12625620-Computer Systems,
pubmed-meshheading:12625620-Heart Atria,
pubmed-meshheading:12625620-Humans,
pubmed-meshheading:12625620-Models, Cardiovascular,
pubmed-meshheading:12625620-Pacemaker, Artificial,
pubmed-meshheading:12625620-Sinoatrial Node
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pubmed:year |
2003
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pubmed:articleTitle |
Sophisticated architecture is required for the sinoatrial node to perform its normal pacemaker function.
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pubmed:affiliation |
School of Biomedical Sciences, University of Leeds, Leeds, United Kingdom. m.r.boyett@leeds.ac.uk
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pubmed:publicationType |
Journal Article,
Review
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