A solid phase, enzyme-linked immunoassay is described for the quantitative determination of the complex of human granulocyte elastase (EC 3.4.21.37) with alpha 1-proteinase inhibitor. The assay employs antibody-coated test tubes and it is suitable for routine use in clinical chemistry laboratories. Data for sample stability and test characteristics are given. A reference range of 20-180 micrograms/l elastase in plasma was determined. The diagnostic significance of granulocyte elastase levels in plasma in inflammatory diseases is discussed.
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Neumann et al. (1984) studied this question.
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