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  • Title: Quantitative cytochemistry of blood neutrophils in acute myeloid leukaemia.
    Author: Schofield KP, Stone PC, Stuart J.
    Journal: Br J Haematol; 1983 Jun; 54(2):261-8. PubMed ID: 6303382.
    Abstract:
    Blood neutrophils were studied by quantitative cytochemistry in patients with acute myeloid leukemia at diagnosis (17 patients), during remission (17 patients) and in relapse (seven patients). Scanning and integrating microdensitometry was used to quantify components of azurophilic granules (myeloperoxidase, chloroacetate esterase, beta-glucuronidase, acid phosphatase, acid mucosubstance) and also specific granules (lactoferrin). At diagnosis, neutrophil myeloperoxidase, chloroacetate esterase, and lactoferrin were significantly decreased, compared with normal neutrophils from 25 controls, with 13 of the 17 patients showing a partial or complete deficiency of at least one granule constituent. Five of seven patients, followed serially from remission into relapse, showed a fall in activity of azurophilic or specific granule components before overt blast cell infiltration of the marrow had occurred and this may predict relapse.
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