Reactive oxygen species production by monocytes and polymorphonuclear leukocytes during dialysis.

Himmelfarb J, Lazarus JM, Hakim R
Am J Kidney Dis. 1991 17 (3): 271-6

PMID: 1996568

Intradialytic production of reactive oxygen species (ROS) by monocytes and polymorphonuclear leukocytes (PMNL) was examined separately in six hemodialysis patients. Samples obtained 15 minutes after initiation of dialysis with new cuprophane membranes demonstrated significantly increased (P less than 0.05) ROS production in both cell populations as measured by the fluorescence of a specific intracellular marker (2',7'-dichlorofluorescein diacetate [DCFH-DA]) assayed by flow cytometry. Granulocytes harvested during dialysis also showed decreased responsiveness to exogenous C5a and F-Met-Leu-Phe (FMLP) at 15, 30, and 60 minutes after initiation of dialysis (P less than 0.05). Our data suggest that hemodialysis with cuprophane membrane is associated with monocyte and PMNL activation as shown by production of ROS coincident with peak activation of the complement cascade; these granulocytes become refractory to further stimulation with C5a and FMLP during dialysis.

MeSH Terms (17)

Adult Aged Cellulose Complement C5a Female Flow Cytometry Fluoresceins Humans Hydrogen Peroxide Lymphocyte Activation Male Membranes, Artificial Middle Aged Monocytes N-Formylmethionine Leucyl-Phenylalanine Neutrophils Renal Dialysis

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