• 1 January 1984
    • journal article
    • research article
    • Vol. 26  (1) , 35-38
Abstract
Myeloperoxidase and eosinophil peroxidase activity was studied in healthy subjects and in 4 totally myeloperoxidase deficient subjects using cytochemical and biochemical methods. Cytochemical tests demonstrated a pH dependent, enzymatic differentiated affinity of myeloperoxidase and eosinophil peroxidase for the chromogens used. The eosinophil peroxidase/myeloperoxidase ratio varied from 1.5 to 4. Biochemical assays, using MBTH-AA [3-methyl-2-benzothiazolinone hydrazone hydrochloride] or o-dianisidine methods, produced eosinophil peroxidase/myeloperoxidase ratios of 1.98 and 1.72.