Production of superoxide by neutrophils

Oxygen uptake by neutrophils has been stimulated by particulate serum-treated-zymosan (STZ) and soluble N-formylmethionyl-leucyl-phenylalanine (FMLP) in the presence and absence of the superoxide radical scavenger, cytochrome C. Results indicate that FMLP may stimulate neutrophils to produce superoxide but that STZ may not.