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  • Title: [Effect of interleukin-10 level and human leukocyte antigen-DR expression as prognostic predictors in critically ill patients undergoing continuous renal replacement therapy].
    Author: Fu LJ, Yu C, Gong DH, Ji DX, Liu ZH.
    Journal: Zhongguo Wei Zhong Bing Ji Jiu Yi Xue; 2012 Mar; 24(3):140-4. PubMed ID: 22401157.
    Abstract:
    OBJECTIVE: To inquire into interleukin-10 (IL--10) level and monocyte expression of human leukocyte antigen--DR (HLA--DR) are predictors of infection and prognosis in critically ill patients undergoing continuous renal replacement therapy (CRRT). METHODS: A total of 43 critically ill patients undergoing continuous veno-venous hemofiltration (CVVH) were recruited from the intensive care unit (ICU). Anti--coagulated blood was obtained at 1 day before and 4 days after undergoing CVVH, and plasma IL--10 level (enzyme linked immunosorbent assay) and HLA--DR expression (flow cytometry) were determined. Thirty healthy subjects were enrolled as controls. In addition, the correlation between IL--10 and acute physiology and chronic health evaluation II (APACHEII) score was assessed. RESULTS: (1)Altogether, 7 patients died among a total of 43 critically ill patients, the mortality was 16.3%. Eighteen patients had negative cultures during the study (group I), and 19 patients had positive cultures (group II), and in 6 patients positive bacterial culture appeared 72 hours after the beginning of the treatment (group III). (2) The IL--10 level (ng/L) was higher in patients than in healthy subjects [23.46 (46.71) vs. 0.32 (0.45), P < 0.01]. Compared with group I, the levels of IL--10 in group II and III were higher significantly [40.20 (46.44), 41.78 (49.63) vs. 7.33 (21.05), both P < 0.05]. Continuous observation revealed that IL--10 rapidly lowered in group I after treatment [4.50 (7.44) vs. 7.33 (21.05), P < 0.05], while there was no apparent change in patients of other two groups. It was found that IL--10 was significant positive correlation with the APACHEII score (r = 0.71, P < 0.01).(3) HLA--DR was lower in patients than in healthy individuals [21.65% (25.62%) vs. 90.39% (9.80%), P < 0.01]. After CVVH, HLA--DR expression was obviously increased in group I [64.95% (35.03%) vs. 32.45% (45.03%), P < 0.01]. However, there were no significant changes in the other two groups. The patients who died had persistent and extremely low HLA--DR expression. CONCLUSIONS: (1)A significant discriminative power of IL--10 levels in predicting disease severity was found among the patients receiving CRRT, and persistently high IL--10 level predicts poor prognosis. (2) Persistently low monocyte HLA--DR expression may indicate concomitant or impending infection in patients receiving CRRT.
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