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|標題:||The interleukin-4 expression in patients with severe sepsis||作者:||Wu, H.P.
|關鍵字:||Interleukin-4;Interleukin-4 delta 2;Sepsis;Cytokines;Human;alternative splice variant;cell-proliferation;human il-4;il-4-delta-2;tuberculosis;gamma||Project:||Journal of Critical Care||期刊/報告no：:||Journal of Critical Care, Volume 23, Issue 4, Page(s) 519-524.||摘要:||
Purpose: Sepsis is a complicated syndrome in which proinflammatory and anti-inflammatory cytokines are expressed simultaneously. However, it remains unclear for the expression of interleukin (IL)-4 and IL-4 delta 2 in patients with severe sepsis. Materials and Methods: By nested reverse transcriptase-polymerase chain reaction and the expression of glyceraldehydes-3-phosphate dehydrogenase as the internal reference, the expression levels of IL-4 and IL-4 delta 2 were determined in peripheral blood mononuclear cells (PBMCs) of 76 patients with severe sepsis and were immediately admitted to an intensive care unit. Plasma IL-4 level was measured by enzyme-linked immunosorbent assay. Clinical characteristics were monitored and recorded prospectively. Results: The IL-4 messenger RNA (mRNA) expression in PBMCs of patients who had survived was significantly higher than that of those who had died. The IL-4 delta 2/IL-4 ratio in PBMCs of patients who had survived was significantly lower than that of those who had died. The IL-4 delta 2 expression did not differ between survivors and nonsurvivors. After regression analysis, the IL-4 delta 2/IL-4 ratio still was all independent factor for death in patients with severe sepsis. The expression of IL-4 delta 2 mRNA was positively correlated with that of IL-4 mRNA in patients with severe sepsis. The plasma IL-4 levels ill septic patients oil admission day did not differ between survivors and nonsurvivors. Conclusions: The IL-4 mRNA expression might be associated with survival in patients with severe sepsis. The IL-4 delta 2/IL-4 ratio might be served as the net immunity of IL-4 activity. (c) 2008 Elsevier Inc. All rights reserved.
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