The reduction LOS in the analyzed dataset is mainly explained by the relevantly reduced rate of patients being intubated at the time of ICU admission. Our data demonstrate that trauma patients' in-hospital course is influenced by reduced intubation rate at the time of ICU admission.

During the last years, proteomic studies have revealed several interesting findings in experimental sepsis models and septic patients. However, most studies investigated protein alterations only in single organs or in whole blood. To identify possible sepsis biomarkers and to evaluate the relationship between protein alteration in sepsis affected organs and blood, proteomics data from the heart, brain, liver, kidney, and serum were analysed. Using functional network analyses in combination with hierarchical cluster analysis, we found that protein regulation patterns in organ tissues as well as in serum are highly dynamic. In the tissue proteome, the main functions and pathways affected were the oxidoreductive activity, cell energy generation, or metabolism, whereas in the serum proteome, functions were associated with lipoproteins metabolism and, to a minor extent, with coagulation, inflammatory response, and organ regeneration. Proteins from network analyses of organ tissue did not correlate with statistically significantly regulated serum proteins or with predicted proteins of serum functions. In this study, the combination of proteomic network analyses with cluster analyses is introduced as an approach to deal with high-throughput proteomics data to evaluate the dynamics of protein regulation during sepsis.

ZusammenfassungBei einer Sepsis sind eine adäquate Diagnostik und Therapie von wesentlicher prognostischer Bedeutung. Neben der Blutkulturanalyse werden u. a. Biomarker wie das Procalcitonin (PCT) in der Diagnostik und zur Steuerung der antibiotischen Therapie eingesetzt. Aktuelle Daten legen nahe, dass eine PCT-gesteuerte Therapie auch das Outcome verbessern kann. Das PCT als diagnostisches Instrument ist jedoch mit einigen Einschränkungen verbunden.

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