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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1986-6-27
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pubmed:abstractText |
The pathologic changes in myotonic dystrophy (DM) skeletal muscle biopsies have been analyzed at both the histochemical and molecular level. A histochemical stain for pretyping single fibers in conjunction with sodium dodecyl sulphate-polyacrylamide gel electrophoresis allowed biochemical differences to be pinpointed in specific histochemical fiber types. These biochemical differences can be related to histochemical changes in fiber type observed in cross-section of the DM biopsies. Such changes included specific fiber type atrophy, hypertrophy, and disproportion. The pathogenesis of DM appears to be characterized by a large increase in the number of promiscuous fibers, that is, those fibers that express both fast and slow myosins. This promiscuity, which is rare in control muscle (less than 2%), is also prevalent at high levels in some family members at risk for DM. The observed promiscuity, although probably not a primary effect of DM, appears to be linked to the histochemical changes in fiber type observed in the DM biopsies.
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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 |
May
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pubmed:issn |
0148-639X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
9
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
355-63
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:3713741-Adolescent,
pubmed-meshheading:3713741-Adult,
pubmed-meshheading:3713741-Biopsy,
pubmed-meshheading:3713741-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:3713741-Female,
pubmed-meshheading:3713741-Histocytochemistry,
pubmed-meshheading:3713741-Humans,
pubmed-meshheading:3713741-Male,
pubmed-meshheading:3713741-Muscles,
pubmed-meshheading:3713741-Myosins,
pubmed-meshheading:3713741-Myotonic Dystrophy,
pubmed-meshheading:3713741-Sodium Dodecyl Sulfate
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pubmed:year |
1986
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pubmed:articleTitle |
Promiscuous expression of myosin in myotonic dystrophy.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
|