Source:http://linkedlifedata.com/resource/pubmed/id/11160076
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
2001-2-22
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pubmed:abstractText |
The ability of rabbit trachealis to undergo plastic adaptation to chronic shortening or lengthening was assessed by setting the muscle preparations at three lengths for 24 h in relaxed state: a reference length in which applied force was approximately 1-2% of maximal active force (P(o)) and lengths considerably shorter and longer than the reference. Passive and active length-tension (L-T) curves for the preparations were then obtained by electrical field stimulation at progressively increasing muscle length. Classically shaped L-T curves were obtained with a distinct optimal length (L(o)) at which P(o) developed; however, both the active and passive L-T curves were shifted, whereas P(o) remained unchanged. L(o) was 72% and 148% that of the reference preparations for the passively shortened and lengthened muscles, respectively. The results suggest that chronic narrowing of the airways could induce a shift in the L-T relationship of smooth muscle, resulting in a maintained potential for maximal force production.
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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 |
Feb
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pubmed:issn |
8750-7587
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
90
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
734-40
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:11160076-Adaptation, Physiological,
pubmed-meshheading:11160076-Animals,
pubmed-meshheading:11160076-Asthma,
pubmed-meshheading:11160076-Culture Techniques,
pubmed-meshheading:11160076-Electric Stimulation,
pubmed-meshheading:11160076-Lung,
pubmed-meshheading:11160076-Lung Diseases, Obstructive,
pubmed-meshheading:11160076-Muscle, Smooth,
pubmed-meshheading:11160076-Muscle Contraction,
pubmed-meshheading:11160076-Rabbits,
pubmed-meshheading:11160076-Time Factors,
pubmed-meshheading:11160076-Trachea
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pubmed:year |
2001
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pubmed:articleTitle |
Selected contribution: effect of chronic passive length change on airway smooth muscle length-tension relationship.
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pubmed:affiliation |
Pulmonary Research Laboratory, St. Paul's Hospital, Vancouver, BC, Canada V6Z 1Y6.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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