Abstract
Objective To investigate the effect of continuous veno-venous hemofiltration (CVVH) on the peripheral blood levels of high mobility group box chromosomal protein 1 (HMGB-1) in patients with systemic inflammatory response syndrome (SIRS) or sepsis.Methods Thirty patients with SIRS or sepsis in Intensive Care Unit of our hospital were scheduled for treatment of CVVH.The replacement liquid was put in by the pattern of pre-dilution of 40％ and post-dilution of 60％.The flow-rate was 3 L/h.The blood flow-rate was from 200 to 300 ml/min.5 ml blood from right radial artery was got at the time points of preCVVH,CVVH 2 h,6 h,8 h and post-CVVH 12 h and the serum was stored at the temperature of-20 ℃ after high speed centrifugation,and 2 ml filter liquor was reserved at the time point of CVVH 6 h.The concentration of serum and filter liquor HMGB-1 was measured by ELISA,but that of TNF-α and IL-6 were measured by radioimmunity.Results 30 patients adept CVVH therapy within 24 h to the hospital,and their therapy time was 2 ～ 5(2.4 ± 1.5) d.Among them,17 cases survived and 13 cases died with a fatality rate of 43.3％.Serum concentration of HMGB-1 decreased from the baseline in patients,although this decrease was not statistically significant[(11.88 ± 6.06) ng/ml,(11.97 ± 5.66) ng/ml,(11.94 ± 5.94) ng/ml,(11.73 ± 5.19) ng/ml vs (13.87 ± 4.68) ng/ml,P ＞ 0.05],Serum concentration of both TNF-αand IL-6 after therapy significantly decreased compared to the baseline in patients [TNF-α: (0.28 ± 0.15)ng/ml,(0.30 ± 0.14) ng/ml,(0.29 ± 0.19) ng/ml,(0.33 ± 0.19) ng/ml vs (0.41 ± 0.12) ng/ml,IL-6:(408.20 ±92.18)pg/ml,(250.51 ± 107.34)pg/ml,(276.00 ± 126.20) pg/ml,(315.16 ± 130.97) pg/ml vs (513.35 ± 125.95) pg/ml,P ＜ 0.05].Conclusions CVVH could decrease the concentration of HMGB-1 in peripheral blood,which would be one of the mechanisms of action for CVVH on sepsis. Key words: Systemic inflammatory response syndrome/therapy; Sepsis/therapy; High mobility group proteins/blood; Hemofiltration
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