Lactate dehydrogenase isoenzyme 1. A rapid assay for ischemic myocardial disease. 1983

M T McCoy, and J J Aguanno, and S E Ritzmann

A rapid immunochemical method (Isomune-LD) for the determination of lactate dehydrogenase isoenzyme 1 (LD1) activity in serum was investigated, and the sensitivity and specificity of the assay were determined for the diagnosis of a myocardial infarction (MI). Multiple serum samples were obtained (on admission and at 12, 24, and 48 hours) from 85 patients (30 with proven MI and 55 without MI). The sensitivity of LD1 on admission and at 12, 24, and 48 hours was 43%, 84%, 96%, and 100%, respectively, and the specificity at these same time intervals was 95%, 100%, 97%, and 97%, respectively. Thus, the determination of LD1 by this rapid immunochemical method appears to allow a rapid laboratory evaluation of MI with a high degree of sensitivity and specificity.

UI MeSH Term Description Entries
D007527 Isoenzymes Structurally related forms of an enzyme. Each isoenzyme has the same mechanism and classification, but differs in its chemical, physical, or immunological characteristics. Alloenzyme,Allozyme,Isoenzyme,Isozyme,Isozymes,Alloenzymes,Allozymes
D007770 L-Lactate Dehydrogenase A tetrameric enzyme that, along with the coenzyme NAD+, catalyzes the interconversion of LACTATE and PYRUVATE. In vertebrates, genes for three different subunits (LDH-A, LDH-B and LDH-C) exist. Lactate Dehydrogenase,Dehydrogenase, L-Lactate,Dehydrogenase, Lactate,L Lactate Dehydrogenase
D009203 Myocardial Infarction NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION). Cardiovascular Stroke,Heart Attack,Myocardial Infarct,Cardiovascular Strokes,Heart Attacks,Infarct, Myocardial,Infarction, Myocardial,Infarctions, Myocardial,Infarcts, Myocardial,Myocardial Infarctions,Myocardial Infarcts,Stroke, Cardiovascular,Strokes, Cardiovascular
D004586 Electrophoresis An electrochemical process in which macromolecules or colloidal particles with a net electric charge migrate in a solution under the influence of an electric current. Electrophoreses
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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