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novel biomarker sepsis

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https://www.readbyqxmd.com/read/28520525/companion-and-point-of-care-sensor-system-for-rapid-multiplexed-detection-of-a-panel-of-infectious-disease-markers
#1
Anjan Panneer Selvam, Shalini Prasad
A nanochannel-based electrochemical biosensor has been demonstrated for rapid and multiplexed detection of a panel of three biomarkers associated with rapid detection of sepsis. The label-free biosensor detected procalcitonin (PCT), lipoteichoic acid (LTA), and lipopolysaccharide (LPS) from human whole blood. The biosensor comprises a nanoporous nylon membrane integrated onto a microelectrode sensor platform for nanoconfinement effects. Charge perturbations due to biomarker binding are recorded as impedance changes using electrochemical impedance spectroscopy...
June 2017: SLAS Technology
https://www.readbyqxmd.com/read/28436424/the-immunopathology-of-sepsis-and-potential-therapeutic-targets
#2
REVIEW
Tom van der Poll, Frank L van de Veerdonk, Brendon P Scicluna, Mihai G Netea
Sepsis is defined as a life-threatening organ dysfunction that is caused by a dysregulated host response to infection. In sepsis, the immune response that is initiated by an invading pathogen fails to return to homeostasis, thus culminating in a pathological syndrome that is characterized by sustained excessive inflammation and immune suppression. Our understanding of the key mechanisms involved in the pathogenesis of sepsis has increased tremendously, yet this still needs to be translated into novel targeted therapeutic strategies...
April 24, 2017: Nature Reviews. Immunology
https://www.readbyqxmd.com/read/28430696/sequential-analysis-of-a-panel-of-biomarkers-and-pathologic-findings-in-a-resuscitated-rat-model-of-sepsis-and-recovery
#3
Nishkantha Arulkumaran, Marije L Sixma, Elisa Jentho, Elias Ceravola, Paul S Bass, John A Kellum, Robert J Unwin, Fred W K Tam, Mervyn Singer
OBJECTIVES: To characterize the temporal pattern of a panel of blood and urinary biomarkers in an animal model of fecal peritonitis and recovery. DESIGN: Prospective observational animal study. SETTING: University research laboratory. SUBJECTS: Male Wistar rats. INTERVENTIONS: A fluid-resuscitated, long-term (3 d) rat model of sepsis (fecal peritonitis) and recovery was used to understand the temporal association of sepsis biomarkers in relation to systemic hemodynamics, inflammation, and renal function...
April 20, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28382754/cellular-and-extracellular-mirnas-are-blood-compartment-specific-diagnostic-targets-in-sepsis
#4
Marlene Reithmair, Dominik Buschmann, Melanie Märte, Benedikt Kirchner, Daniel Hagl, Ines Kaufmann, Martina Pfob, Alexander Chouker, Ortrud K Steinlein, Michael W Pfaffl, Gustav Schelling
Septic shock is a common medical condition with a mortality approaching 50% where early diagnosis and treatment are of particular importance for patient survival. Novel biomarkers that serve as prompt indicators of sepsis are urgently needed. High-throughput technologies assessing circulating microRNAs represent an important tool for biomarker identification, but the blood-compartment specificity of these miRNAs has not yet been investigated. We characterized miRNA profiles from serum exosomes, total serum and blood cells (leukocytes, erythrocytes, platelets) of sepsis patients by next-generation sequencing and RT-qPCR (n = 3 × 22) and established differences in miRNA expression between blood compartments...
April 6, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28298146/companion-and-point-of-care-sensor-system-for-rapid-multiplexed-detection-of-a-panel-of-infectious-disease-markers
#5
Anjan Panneer Selvam, Shalini Prasad
A nanochannel-based electrochemical biosensor has been demonstrated for rapid and multiplexed detection of a panel of three biomarkers associated with rapid detection of sepsis. The label-free biosensor detected procalcitonin (PCT), lipoteichoic acid (LTA), and lipopolysaccharide (LPS) from human whole blood. The biosensor comprises a nanoporous nylon membrane integrated onto a microelectrode sensor platform for nanoconfinement effects. Charge perturbations due to biomarker binding are recorded as impedance changes using electrochemical impedance spectroscopy...
March 1, 2017: SLAS Technology
https://www.readbyqxmd.com/read/28261201/circulating-micrornas-as-potential-biomarkers-of-infectious-disease
#6
REVIEW
Carolina N Correia, Nicolas C Nalpas, Kirsten E McLoughlin, John A Browne, Stephen V Gordon, David E MacHugh, Ronan G Shaughnessy
microRNAs (miRNAs) are a class of small non-coding endogenous RNA molecules that regulate a wide range of biological processes by post-transcriptionally regulating gene expression. Thousands of these molecules have been discovered to date, and multiple miRNAs have been shown to coordinately fine-tune cellular processes key to organismal development, homeostasis, neurobiology, immunobiology, and control of infection. The fundamental regulatory role of miRNAs in a variety of biological processes suggests that differential expression of these transcripts may be exploited as a novel source of molecular biomarkers for many different disease pathologies or abnormalities...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28255555/procalcitonin-impairs-liver-cell-viability-and-function-in-vitro-a-potential-new-mechanism-of-liver-dysfunction-and-failure-during-sepsis
#7
Martin Sauer, Sandra Doß, Johannes Ehler, Thomas Mencke, Nana-Maria Wagner
Purpose. Liver dysfunction and failure are severe complications of sepsis and result in poor outcome and increased mortality. The underlying pathologic mechanisms of hepatocyte dysfunction and necrosis during sepsis are only incompletely understood. Here, we investigated whether procalcitonin, a biomarker of sepsis, modulates liver cell function and viability. Materials and Methods. Employing a previously characterized and patented biosensor system evaluating hepatocyte toxicity in vitro, human hepatocellular carcinoma cells (HepG2/C3A) were exposed to 0...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28185230/superior-accuracy-of-mid-regional-proadrenomedullin-for-mortality-prediction-in-sepsis-with-varying-levels-of-illness-severity
#8
David Andaluz-Ojeda, H Bryant Nguyen, Nicolas Meunier-Beillard, Ramón Cicuéndez, Jean-Pierre Quenot, Dolores Calvo, Auguste Dargent, Esther Zarca, Cristina Andrés, Leonor Nogales, Jose María Eiros, Eduardo Tamayo, Francisco Gandía, Jesús F Bermejo-Martín, Pierre Emmanuel Charles
BACKGROUND: The use of novel sepsis biomarkers has increased in recent years. However, their prognostic value with respect to illness severity has not been explored. In this work, we examined the ability of mid-regional proadrenomedullin (MR-proADM) in predicting mortality in sepsis patients with different degrees of organ failure, compared to that of procalcitonin, C-reactive protein and lactate. METHODS: This was a two-centre prospective observational cohort, enrolling severe sepsis or septic shock patients admitted to the ICU...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28164567/the-prognostic-value-of-plasma-microrna-155-and-microrna-146a-level-in-severe-sepsis-and-sepsis-induced-acute-lung-injury-patients
#9
Yan Han, Yong Li, Ying Jiang
BACKGROUND: Sepsis induced acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are lifethreatening disorders. Acute Physiology and Chronic Health Evaluation (APACHE) scores and several plasma biological markers have been identified to predict the death or treatment outcome of sepsis induced ALI. Immune related microRNAs also have the potential as biomarkers to monitor this kind of disease. METHODS: A total of 44 patients with severe sepsis, 102 patients with sepsis, and 19 healthy volunteers were enrolled in this study...
December 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28087409/thioredoxin-a-novel-biomarker-of-post-injury-sepsis
#10
Jesper Eriksson, Andreas Gidlöf, Mikael Eriksson, Emma Larsson, Olof Brattström, Anders Oldner
BACKGROUND: Thioredoxin (TRX), an endogenous anti-oxidant protein induced in inflammatory conditions, has been shown to increase in plasma and to be associated with outcome in septic patients. This biomarker has never been studied in a trauma setting. We hypothesized that TRX would be increased after trauma and associated with post-injury sepsis. METHODS: Single-centre prospective observational study conducted at the intensive care unit (ICU) at the Karolinska University Hospital, Stockholm, Sweden, a level-1 trauma centre...
March 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28028754/alteration-of-lysophosphatidylcholine-related-metabolic-parameters-in-the-plasma-of-mice-with-experimental-sepsis
#11
Won-Gyun Ahn, Jun-Sub Jung, Hyeok Yil Kwon, Dong-Keun Song
Plasma concentration of lysophosphatidylcholine (LPC) was reported to decrease in patients with sepsis. However, the mechanisms of sepsis-induced decrease in plasma LPC levels are not currently well known. In mice subjected to cecal ligation and puncture (CLP), a model of polymicrobial peritoneal sepsis, we examined alterations in LPC-related metabolic parameters in plasma, i.e., the plasma concentration of LPC-related substances (i.e., phosphatidylcholine (PC) and lysophosphatidic acid (LPA)), and activities or levels in the plasma of some enzymes that can be involved in the regulation of plasma LPC concentration (i...
April 2017: Inflammation
https://www.readbyqxmd.com/read/27984536/interleukin-1-receptor-2-a-new-biomarker-for-sepsis-diagnosis-and-gram-negative-gram-positive-bacterial-differentiation
#12
Yuejiao Lang, Yu Jiang, Min Gao, Wenmei Wang, Nian Wang, Kangkai Wang, Huali Zhang, Guangwen Chen, Ke Liu, Meidong Liu, Mingshi Yang, Xianzhong Xiao
This study was undertaken to explore the value of interleukin-1 receptor 2 (IL1R2) as a novel potential biomarker for diagnosis of sepsis and discrimination of gram-negative (G)/gram-positive (G) bacterial sepsis. The study was performed in Kunming mice and septic patients. Inactive Escherichia coli or Staphylococcus aureus were used to stimulate Kunming mice (10 CFU/kg). In clinical study, septic patients with different pathogen infection were studied, and healthy volunteers and patients with systemic inflammatory response syndrome without definite infection were enrolled as control...
January 2017: Shock
https://www.readbyqxmd.com/read/27911590/proteomic-profiling-identifies-n-acetylmuramoyl-l-alanine-amidase-as-a-novel-biomarker-of-sepsis
#13
Fabiano Pinheiro da Silva, Thais Regiani Cataldi, Thais Martins de Lima, Paulo Nogueira Starzynski, Hermes Vieira Barbeiro, Monica Teresa Veneziano Labate, Marcel Cerqueira Cesar CéMachado, Heraldo Possolo de Souza, Carlos Alberto Labate
AIM: Sepsis is a critical condition that leads to high mortality and is the most common cause of death in intensive care units. Despite exhaustive efforts by the scientific community, a reliable biomarker for diagnosis, evolution and prognosis of sepsis is still lacking. Results & methodology: Here, using high-throughput proteomics, we describe N-acetylmuramoyl-l-alanine amidase as a novel candidate for differentiating infectious and noninfectious inflammatory syndromes. DISCUSSION & CONCLUSION: This is the first description of N-acetylmuramoyl-l-alanine amidase as a biomarker that can be used alone or in conjunction with other biomarkers to facilitate the diagnosis of sepsis in the critically ill...
December 2016: Biomarkers in Medicine
https://www.readbyqxmd.com/read/27908327/ready-for-prime-time-biomarkers-in-sepsis
#14
REVIEW
Brit Long, Alex Koyfman
Sepsis is a common condition managed in the emergency department. Current diagnosis relies on physiologic criteria and suspicion of a source of infection using history, physical examination, laboratory studies, and imaging studies. The infection triggers a host response with the aim to destroy the pathogen, and this response can be measured. A reliable biomarker for sepsis should assist with earlier diagnosis, improve risk stratification, or improve clinical decision making. Current biomarkers for sepsis include lactate, troponin, and procalcitonin...
February 2017: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/27832977/development-and-validation-of-a-parsimonious-and-pragmatic-charm-score-to-predict-mortality-in-patients-with-suspected-sepsis
#15
Kuan-Fu Chen, Su-Hsun Liu, Chih-Huang Li, Chin-Chieh Wu, Chung-Hsien Chaou, I-Shiang Tzeng, Yu-Hsiang Hsieh, Gerald N Blaney, Zhen-Ying Liu, Shih-Tsung Han, Yi-Lin Chan
BACKGROUND: We aimed to derive and validate a parsimonious and pragmatic clinical prediction rule using the concepts of Predisposition, Infection, Response, and Organ Dysfunction to predict in-hospital mortality; and to compare it with other prediction rules, as well as with conventional biomarkers for evaluating the mortality risk of patients with suspected sepsis in the emergency department (ED). METHODS: We conducted a pragmatic cohort study with consecutive ED patients aged 18 or older with documented diagnostic codes of infection and two sets of blood culture ordered by physicians between 2010 and 2012 in a tertiary teaching hospital...
April 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27822672/obesity-acute-kidney-injury-and-outcome-of-critical-illness
#16
REVIEW
Helmut Schiffl, Susanne M Lang
Acute kidney injury is a heterogeneous clinical syndrome encompassing a spectrum of risk factors and acute insults, occurring in multiple settings and affecting both short-term and long-term outcomes. Obesity has become an epidemic. The available literature suggests that AKI is common in critically ill surgical or medical obese patients and that obesity is a novel risk factor for this acute renal syndrome. The pathophysiology of obesity-associated AKI is not completely understood. Obesity-related factors combined with the burden of other comorbidities in elderly obese patients may interact with known precipitating factors such as hypotension, nephrotoxins or sepsis and increase the susceptibility of this population to AKI...
November 7, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27816958/urinary-orosomucoid-a-novel-early-biomarker-of-sepsis-with-promising-diagnostic-performance
#17
Péter Kustán, Balázs Szirmay, Zoltán Horváth-Szalai, Andrea Ludány, Gábor L Kovács, Attila Miseta, Tamás Kőszegi, Diána Mühl
BACKGROUND: In order to help clinical decision making, we investigated the diagnostic and prognostic ability of urinary orosomucoid (u-ORM) as a new sepsis biomarker, and compared its performance to classical inflammatory parameters. METHODS: We monitored u-ORM in septic (n=43) and SIRS (n=13) patients in a 5-day follow-up study vs. control patients (n=30). U-ORM was measured by a newly developed turbidimetric assay. U-ORM values were referred to urinary creatinine and expressed as u-ORM/u-CREAT (mg/mmol)...
February 1, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/27747021/ame-evidence-series-001-the-society-for-translational-medicine-clinical-practice-guidelines-for-diagnosis-and-early-identification-of-sepsis-in-the-hospital
#18
REVIEW
Zhongheng Zhang, Nathan J Smischney, Haibo Zhang, Sven Van Poucke, Panagiotis Tsirigotis, Jordi Rello, Patrick M Honore, Win Sen Kuan, Juliet June Ray, Jiancang Zhou, You Shang, Yuetian Yu, Christian Jung, Chiara Robba, Fabio Silvio Taccone, Pietro Caironi, David Grimaldi, Stefan Hofer, George Dimopoulos, Marc Leone, Sang-Bum Hong, Mabrouk Bahloul, Laurent Argaud, Won Young Kim, Herbert D Spapen, Jose Rodolfo Rocco
Sepsis is a heterogeneous disease caused by an infection stimulus that triggers several complex local and systemic immuno-inflammatory reactions, which results in multiple organ dysfunction and significant morbidity and mortality. The diagnosis of sepsis is challenging because there is no gold standard for diagnosis. As a result, the clinical diagnosis of sepsis is ever changing to meet the clinical and research requirements. Moreover, although there are many novel biomarkers and screening tools for predicting the risk of sepsis, the diagnostic performance and effectiveness of these measures are less than satisfactory, and there is insufficient evidence to recommend clinical use of these new techniques...
September 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27740627/cellular-and-viral-micrornas-in-sepsis-mechanisms-of-action-and-clinical-applications
#19
REVIEW
Dana Elena Giza, Enrique Fuentes-Mattei, Marc David Bullock, Stefan Tudor, Matthew Joseph Goblirsch, Muller Fabbri, Florea Lupu, Sai-Ching Jim Yeung, Catalin Vasilescu, George Adrian Calin
Regardless of its etiology, once septic shock is established, survival rates drop by 7.6% for every hour antibiotic therapy is delayed. The early identification of the cause of infection and prognostic stratification of patients with sepsis are therefore important clinical priorities. Biomarkers are potentially valuable clinical tools in this context, but to date, no single biomarker has been shown to perform adequately. Hence, in an effort to discover novel diagnostic and prognostic markers in sepsis, new genomic approaches have been employed...
December 2016: Cell Death and Differentiation
https://www.readbyqxmd.com/read/27737505/the-use-of-biomarkers-to-describe-plasma-red-cell-and-blood-volume-from-a-simple-blood-test
#20
Louisa Margit Lobigs, Pierre-Edouard Sottas, Pitre Collier Bourdon, Zoran Nikolovski, Mohamed El-Gingo, Evdokia Varamenti, Peter Peeling, Brian Dawson, Yorck Olaf Schumacher
Plasma volume and red cell mass are key health markers used to monitor numerous disease states, such as heart failure, kidney disease, or sepsis. Nevertheless, there is currently no practically applicable method to easily measure absolute plasma or red cell volumes in a clinical setting. Here, a novel marker for plasma volume and red cell mass was developed through analysis of the observed variability caused by plasma volume shifts in common biochemical measures, selected based on their propensity to present with low variations over time...
January 2017: American Journal of Hematology
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