Abstract

Rabbit polymorphonuclear leukocyte granules were submitted to zonal fractionation through a discontinuous sucrose gradient. Distribution of azurophilic and specific granules, enzymatically characterized by peroxidase and alkaline phosphatase respectively, was as reported by others. NADPH oxidizing activity was associated with azurophilic granules. 3-Amino-1H-1, 2,4-triazole stimulated NADPH oxidation by azurophilic granules and inhibited peroxidase. Relationships between peroxidase and NADPH oxidizing activity are discussed.

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