Stimulated Whole Blood Cytokine Release as a Biomarker of Immunosuppression in the Critically Ill: The Need for a Standardized Methodology
| Autor: | Elisabetta, Segre, James N, Fullerton |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Adult
Immunosuppression Therapy Lipopolysaccharides Male Tumor Necrosis Factor-alpha Critical Illness lipopolysaccharide stratified medicine Reproducibility of Results In Vitro Techniques tumor necrosis factor α sepsis endotoxin tolerance Immune Tolerance immunoadjuvant therapeutics Cytokines Humans Female Diagnostic Biomarkers Rapid Communication |
| Zdroj: | Shock (Augusta, Ga.) |
| ISSN: | 1540-0514 |
| Popis: | Objective: Reduced ex vivo lipopolysaccharide (LPS) stimulated whole blood pro-inflammatory cytokine release is a hallmark of immunosuppression in the critically ill and predicts adverse clinical outcomes. No standard technique for performing the assay currently exists. The impact of methodological heterogeneity was determined. Design, Setting, Subjects, and Interventions: Clinical experimental study set in a research laboratory. Venous blood from 5 to 10 healthy volunteers/experiment (total participant group: 18 subjects, 72% men, mean age 32) was stimulated ex vivo to evaluate the effect of variables identified via literature review on tumor necrosis factor-α (TNFα) release. These included sample handling, stimulation technique, and incubation conditions. Reporting convention was additionally assessed. Main Results: Measured TNFα release was significantly altered by source of LPS, concentration of LPS employed, duration and temperature of incubation prior to supernatant aspiration, and predilution of blood (repeated measures ANOVA, all P |
| Databáze: | OpenAIRE |
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