Abstract
The polymorphonuclear neutrophil (PMN) function of 22 patients with end-stage renal failure (ESRF) was studied immediately before and 3 months after starting continuous ambulatory peritoneal dialysis (CAPD) and compared with a control group of healthy normal volunteers. The PMN functions studied were phagocytosis and killing of Staphylococcus epidermidis and respiratory burst activity. The results show that in the presence of normal pooled human serum PMN from patients with ESRF before CAPD treatment phagocytose bacteria normally, but have impaired killing. Before treatment, the PMN from patients with ESRF also showed an increase in both unstimulated and stimulated superoxide anion production. Abnormal PMN function was corrected by CAPD treatment, suggesting the involvement of a dialyzable toxin.
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