Tumor necrosis factor-alpha, interleukin-1 beta, and interleukin-1 receptor antagonist in dialysate and serum from patients on continuous ambulatory peritoneal dialysis

被引:52
作者
Brauner, A
Hylander, B
Wretlind, B
机构
[1] KAROLINSKA HOSP,DEPT NEPHROL,S-17176 STOCKHOLM,SWEDEN
[2] HUDDINGE HOSP,DIV BACTERIOL,STOCKHOLM,SWEDEN
关键词
continuous ambulatory peritoneal dialysis; peritonitis; tumor necrosis factor-alpha; interleukin-1; beta; interleukin-1 receptor antagonist;
D O I
10.1016/S0272-6386(96)90364-9
中图分类号
R5 [内科学]; R69 [泌尿科学(泌尿生殖系疾病)];
学科分类号
1002 ; 100201 ;
摘要
Dialysate and serum levels of tumor necrosis factor-alpha (TNF-alpha), interleukin-1 beta (IL-1 beta), and IL-1ra were investigated in 20 patients on continuous ambulatory peritoneal dialysis (CAPD), who altogether had 30 episodes of peritonitis. Bacterial growth was found in 25 (83%) of the dialysate samples. Staphylococcus epidermidis was the single most common microorganism, found in 44% of the culture-verified peritonitis. Samples from dialysate bags were obtained during the first month of dialysis and during peritonitis from the first three bags on day 1 (the day of admittance) and from nightbags on days 3 and 10. Serum samples were drawn on days 1 and 10. The peak concentrations of cytokines occurred on the first day of infection. In dialysates, TNF-alpha was elevated in 96% of the patients, with a peak median concentration of 160 pg/mL (range, <15 to 4,400 pg/mL). Seventy-five percent of the dialysates had elevated IL-1 beta, with the highest median level of 52 pg/mL (range, <10 to 940 pg/mL), whereas all patients had elevated IL-1ra, with a peak median value of 10,300 pg/mL (range, 470 to 79,000 pg/mL). TNF-alpha, IL-1 beta, and IL-1ra were significantly higher than in corresponding noninfected samples (TNF-alpha median value, <15 pg/mL; IL-1 beta, <10 pg/mL; and IL-1ra, 150 pg/mL; P < 0.0001, P < 0.002, and P < 0.001, respectively). In serum, elevated TNF-alpha levels were found in 92% of the episodes, but the median levels were less than one third of the corresponding lavage levels. IL-1 beta was detected in 8% of the episodes and, although IL-1ra was found in 92% of the patients, the dialysate levels were more than 15 times higher. In dialysate, a correlation was observed for TNF-alpha and IL-1ra and also between IL-1 beta and IL-1ra. IL-1 beta and IL-1ra also correlated with the previously analyzed IL-6, and IL-1 beta correlated with the previously analyzed IL-8. Patients infected with high virulent strains had higher cytokine levels as compared with those infected with low virulent strains. In conclusion, our study shows markedly elevated TNF-alpha, IL-1 beta, and IL-1ra levels in the acute stage in CAPD patients with peritonitis. (C) 1996 by the National Kidney Foundation, Inc.
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页码:402 / 408
页数:7
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