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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
8
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pubmed:dateCreated |
1984-12-5
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pubmed:abstractText |
A radioimmunoassay for human cardiac myosin light chains (CM-LC) was developed and evaluated as a selective diagnostic test for acute myocardial infarction (AMI). The assay had a sensitivity of 1.0 ng/ml (+/- 2 standard deviations) in serum. Eighty-three patients with confirmed AMI all showed an elevated plasma concentration of CM-LC at some time during the course of their illness. Of 9 patients from whom early blood samples were obtained, 7 had diagnostic concentrations within 6 hours from the onset of chest pain. Only 2 had an elevated total creatine kinase level at this time. CM-LC concentrations peaked on days 2 to 4, but remained elevated in patients with large AMIs for more than 1 week. In preinfarction syndrome, 8 of 15 patients had elevated CM-LC levels at least once. Of 15 patients with stable angina pectoris, only 1 patient, who had congestive heart failure, showed elevated light chain levels. CM-LC levels were not detectable by this method in the sera of healthy persons (n = 72), patients with recent intramuscular injection (n = 3), or those with a variety of systemic illnesses (n = 14). In initial studies using an antiserum having 25% cross-reactivity between cardiac and skeletal muscle myosin light chains, 3 patients who had extensive skeletal muscle damage appeared to have elevated concentrations. Patients with this finding have not yet been examined with a more specific antiserum (8% cross-reactivity).(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0002-9149
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
54
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
964-70
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:6496359-Adult,
pubmed-meshheading:6496359-Angina, Unstable,
pubmed-meshheading:6496359-Creatine Kinase,
pubmed-meshheading:6496359-Female,
pubmed-meshheading:6496359-Humans,
pubmed-meshheading:6496359-Immune Sera,
pubmed-meshheading:6496359-Isoenzymes,
pubmed-meshheading:6496359-Male,
pubmed-meshheading:6496359-Middle Aged,
pubmed-meshheading:6496359-Myocardial Infarction,
pubmed-meshheading:6496359-Myosins,
pubmed-meshheading:6496359-Radioimmunoassay
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pubmed:year |
1984
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pubmed:articleTitle |
Diagnosis of acute myocardial infarction by detection of circulating cardiac myosin light chains.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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