Diagnostic kits and methods for making granulocyte cell counts

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving oxidoreductase

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435 724, 435 4, 435 2, 436 18, 436 17, C12Q 128, C12Q 100, G01N 3353

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active

060460199

ABSTRACT:
Methods for detecting granulocytes and for providing an at least semiquantitative indication of granulocyte level and kits for implementing those methods. A blood sample is drawn, and components that might interfere with the assay are removed and/or neutralized. Granulocytes present in the sample are then disrupted to release intracellular myeloperoxidase, and the sample is contacted with a peroxide and a chromogenic donor dye. The myeloperoxidase enzyme catalyzes hydrogen peroxide-involved reactions which result in the dye changing color if, and to the extent that, granulocytes are present in the blood sample.

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