Active clinical trials for "Sepsis"

The patients with sepsis are in the state of hypermetabolism, increased resting energy expenditure, protein and fat catabolism disorder, negative nitrogen balance, insulin resistance, hyperglycemia, and amino acid metabolism disorders. However, it is remain unclear the changes of amino acids expression profiling in sepsis patients. In this study, the investigators has planned to enroll 100 subjects, including 20 cases with systemic inflammatory response syndrome (SIRS), 20 cases with sepsis, 20 cases with severe sepsis and 20 with septic shock. In addition, this study also include 20 normal cases as control. The serum sample of patients with sepsis is draw on days 1, 3, 5, 7, 10, and 14 after first ICU admission. High-performance liquid chromatography and tandem mass spectrometry was used to detect the quantification of amino acids. The amino acids expression profiling contain Arginine, Ornithine, Histidine, Cystine, Isoleucine, Cystathionine, Leucine, Homocystine, Lysine, α-Amino-n-Butyric Acid, Methionine, Alanine, Phenylalanine, Anserine, Threonine, β-Alanine, Tryptophan, β-Amino-Isobutyric Acid, Valine, Carnosine, γ-Amino-n-Butyric Acid, Ethanolamine, Glycine, δ-Hydroxylysine, Serine, Hydroxy-L-Proline, Taurine, 1-Methyl-L-Histidine, Tyrosine, 3-Methyl-L-Mistidine, α-Amino-Adipic, Phospho-Ethanolamine, Asparagine, Phospho-L-Serine, Aspartic acid, Proline, Citrulline, Sarcosine, Glutamic acid, Argininosuccinic Acid, Glutamine, Homocitrulline. The investigators speculate that measurement of amino acids expression profiling could be taken as an indicator for assessment in critically ill patients.

During the past years many investigators have focused on the immunological changes in sepsis disease, and great attention has been paid to the development of practicable means of immunomonitoring. Little is known about diagnostic and prognostic vascular biomarkers during the time course of patients with sepsis.

Serum proteomics is a very useful tool to identify various disease. The purpose of the present study was to find differential proteins among patient with normal, SIRS, sepsis, severe sepsis, death and to screen potential biomarkers for their dynamic changes. Serum proteins were identified by iTRAQ labeling and LC-MS/MS. The bioinformatics analysis was performed with the Mascot software and the International Protein Index (IPI) and the Gene Ontology (GO) Database and KEGG pathway Database. The differentially expressed proteins were verified by Western blot by another sample collected from clinical.

Determination of capillary lactate by using "point-of-care" technique is accessible, fast and allows to quantify the circulatory and metabolic dysfunction caused by sepsis. Compared to conventional assay techniques in arterial blood, capillary assay technique may have an increased susceptibility to metabolic alterations induced by sepsis in its initial stages. This increased sensitivity is not necessarily relevant in the management of the most serious patients for whom the diagnosis is obvious, but it could be very useful in patients for whom a diagnosis of severe sepsis or shock have not yet been adopted, particularly to help better identify patients who would require intensive management and avoid the installation of these serious disorders.

Liver injury is a complication of sepsis and septic liver injury has adverse impact upon the outcome. As a measurement for liver function, Plasma clearance rate of indocyanine green (PDR-ICG) always decreased during the early phase of sepsis. So the investigators hypotheses include: PDR-ICG is lower in sepsis patients than non-septic patients in ICU; PDR-ICG may be lower in abdominal sepsis patients than non-abdominal sepsis patients in ICU; PDR-ICG correlates with abdominal perfusion pressure; change of PDR-ICG in early phase correlates with change of transaminase or bilirubin in late phase of sepsis.

Acute kidney injury (AKI) is a common condition among sepsis patients in the intensive care unit (ICU) and is associated with high morbidity and mortality. Oxidative stress biomarkers were investigated in panels and were reported to predict renal failure in sepsis patients. Some biomarkers would be able to identify who will recover and not recover better than serum creatinine. Thus, a combining oxidative stress biomarkers are needed to predict the occurrence or progression of AKI in critically ill patients.

Continual surveillance of both community-acquired and nosocomial bloodstream infections for specific target organisms. Analysis of comorbidities, complications, bacterial resistance patterns, bacterial genomics (e. g. via WGS and MLST typing) for the determinants of clinical outcomes. The clinical outcomes are investigated both in the short-term (up until discharge) and the long-term (six months after index blood culture by standardized questionnaire). A predictive point-of-care score is to be developed based on these data to define high-risk patient populations requiring more intensive diagnostic and/or treatment regimens.

The amount of peripheral blood exosomes has been confirmed to change in the endotoxin-induced infection. The primary objectives of this study are to compare the changes of peripheral blood dendritic cell-derived exosomes in the patients with sepsis and the healthy controls.

Aging is associated with immunosenescence and impaired host defense mechanisms, contributing to influenza-related morbidity and mortality. Preliminary data demonstrate that the platelet transcriptome is markedly different between healthy subjects and influenza patients. Interferon-induced transmembrane proteins (IFITM) family members are among the transcripts significantly increased in platelets during influenza and expression of IFITM-3 is impaired in elderly subjects, a pattern associated with increased mortality. This study will build on these data and investigate if aging influences the expression of platelet IFITM family members in patients with influenza and sepsis. This study will prospectively determine if aging alters the induction of (IFITMs) in platelets from hospitalized influenza and sepsis patients. The study will also determine if diminished expression of IFITM family members correlates with an increased risk of adverse outcomes in older influenza and sepsis patients.

The purpose of this study is to collect data to support decisions made by BioFire regarding assay development, panel composition, and intended use for the final FilmArray CSI reagent pouch. The study will utilize whole blood and/or plasma obtained from pediatric patients under 18 years of age that present with acute fever.