OBJECTIVE: To determine the relationships between cytokine concentrations and alterations in leukocyte functional antigen expression in sepsis. DESIGN: Prospective, cross-sectional study. SETTING: Respiratory, coronary, and medical intensive care units in a university hospital. PATIENTS: Forty subjects consisting of: a) patients with severe sepsis, b) patients with sepsis, c) critically ill nonseptic patients, and d) normal controls. INTERVENTIONS: None. MEASUREMENTS: Plasma concentrations of interleukin (IL)-1 beta, IL-6, IL-8, IL-10, interleukin-1 receptor antagonist (IL-1Ra), and tumor necrosis factor (TNF)-alpha were determined by enzyme-linked immunosorbent assay (ELISA). Peripheral blood monocyte HLA-DR and CD14 expression and neutrophil CD11b expression were determined by flow cytometry. Measurements were taken within 24 hrs of admission to the intensive care unit and/or clinical presentation. MAIN RESULTS: Significantly increased plasma IL-6, IL-8, IL-10, and TNF-alpha concentrations were observed in the severe sepsis group compared to normal controls. Increases in IL-1Ra were not significant. Monocyte HLA-DR expression, significantly decreased in patients with severe sepsis, was correlated both with IL-6 (p < .005) and IL-8 concentrations (p < .001). Both of these cytokines had close correlations to Acute Physiology and Chronic Health Evaluation (APACHE) II scores which were also correlated with monocyte HLA-DR. Neutrophil CD11b, which was increased in all infected patients, was significantly correlated with the ratio between IL-1 and IL-1Ra concentrations (p < .001). The percent of CD14+ monocytes was lowest in patients with severe sepsis and showed a significant covariate effect from IL-8 concentrations (p < .001). CONCLUSION: These findings suggest that the expression of specific functional molecules on peripheral blood leukocytes is variably related to the net production of certain monokines in sepsis.
OBJECTIVE: To determine the relationships between cytokine concentrations and alterations in leukocyte functional antigen expression in sepsis. DESIGN: Prospective, cross-sectional study. SETTING: Respiratory, coronary, and medical intensive care units in a university hospital. PATIENTS: Forty subjects consisting of: a) patients with severe sepsis, b) patients with sepsis, c) critically ill nonseptic patients, and d) normal controls. INTERVENTIONS: None. MEASUREMENTS: Plasma concentrations of interleukin (IL)-1 beta, IL-6, IL-8, IL-10, interleukin-1 receptor antagonist (IL-1Ra), and tumor necrosis factor (TNF)-alpha were determined by enzyme-linked immunosorbent assay (ELISA). Peripheral blood monocyte HLA-DR and CD14 expression and neutrophil CD11b expression were determined by flow cytometry. Measurements were taken within 24 hrs of admission to the intensive care unit and/or clinical presentation. MAIN RESULTS: Significantly increased plasma IL-6, IL-8, IL-10, and TNF-alpha concentrations were observed in the severe sepsis group compared to normal controls. Increases in IL-1Ra were not significant. Monocyte HLA-DR expression, significantly decreased in patients with severe sepsis, was correlated both with IL-6 (p < .005) and IL-8 concentrations (p < .001). Both of these cytokines had close correlations to Acute Physiology and Chronic Health Evaluation (APACHE) II scores which were also correlated with monocyte HLA-DR. Neutrophil CD11b, which was increased in all infectedpatients, was significantly correlated with the ratio between IL-1 and IL-1Ra concentrations (p < .001). The percent of CD14+ monocytes was lowest in patients with severe sepsis and showed a significant covariate effect from IL-8 concentrations (p < .001). CONCLUSION: These findings suggest that the expression of specific functional molecules on peripheral blood leukocytes is variably related to the net production of certain monokines in sepsis.
Authors: F Kanakoudi-Tsakalidou; F Debonera; V Drossou-Agakidou; K Sarafidis; V Tzimouli; A Taparkou; G Kremenopoulos Journal: Clin Exp Immunol Date: 2001-03 Impact factor: 4.330
Authors: A C Muller Kobold; J G Zijlstra; H R Koene; M de Haas; C G Kallenberg; J W Tervaert Journal: Clin Exp Immunol Date: 1998-11 Impact factor: 4.330
Authors: N Hiki; D Berger; C Prigl; E Boelke; H Wiedeck; M Seidelmann; L Staib; M Kaminishi; T Oohara; H G Beger Journal: Infect Immun Date: 1998-03 Impact factor: 3.441
Authors: P G Boelens; J C M Fonk; A P J Houdijk; R J Scheper; H J T H M Haarman; S Meijer; P A M Van Leeuwen; B M E von Blomberg-van der Flier Journal: Clin Exp Immunol Date: 2004-05 Impact factor: 4.330