[A spectrophotometric method of determining the myeloperoxidase activity in phagocytic cells].

A spectrophotometric method has been developed for measurements of myeloperoxidase activity in phagocytes, and conditions of measurements specified. Contribution of mononuclear cells to myeloperoxidase activity was found negligible, the major role here was played by neutrophils and eosinophils. Myeloperoxidase activity was found reduced in the patients with chronic granulomatous disease, agammaglobulinemia, and elevated in hyper-IgE-syndrome; this parameter was unchanged in ataxia telangiectasia and chronic dermatomucosal candidiasis.