Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Sepsis Express IG

ABSTRACT: The peripheral whole-blood transcriptome analysis has been used to the identification of biomarkers in different clinical syndromes. The ability to simultaneously measure the gene expression levels of the whole transcriptome is providing a broader view of clinical syndromes such as sepsis. The aim of this study was to assess the gene expression profiles of post-surgical patients with septic shock compared with patients without sepsis.

ORGANISM(S): Homo sapiens

SUBMITTER: Raquel Almansa

PROVIDER: E-MTAB-1548 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Publications

Transcriptomic correlates of organ failure extent in sepsis.

Almansa Raquel R Heredia-Rodríguez María M Gomez-Sanchez Esther E Andaluz-Ojeda David D Iglesias Verónica V Rico Lucia L Ortega Alicia A Gomez-Pesquera Estefanía E Liu Pilar P Aragón Marta M Eiros Jose Maria JM Jiménez-Sousa Maria Ángeles MÁ Resino Salvador S Gómez-Herreras Ignacio I Bermejo-Martín Jesús F JF Tamayo Eduardo E

The Journal of infection 20141231 5

<h4>Objectives</h4>Sepsis is characterised by the frequent presence of organ failure and marked immunologic alterations. We studied the association between the extent of organ failure and the transcriptomic response of septic patients.<h4>Methods</h4>Gene expression profiles in the blood of 74 surgical patients with sepsis were compared with those of 30 surgical patients with no sepsis. Differentially expressed genes were assessed for their correlation with the sequential organ failure (SOFA) sc ...[more]

PMID: 25557485

Publication: 1/2

Similar Datasets

Systemic pro-fibrotic and pro-inflammatory response in patients with advanced cirrhosis

Project description:Objective: To evaluate gene expression profiles in patients with advanced cirrhosis compared with healthy controls (HC). Results: Patients with advanced cirrhosis exhibit an unbalanced systemic response involving pro-fibrotic / protective signatures that could be contributing to the pathogenesis of cirrhosis and also to that of the extra-hepatic complications of this disease.

2016-02-14 | E-MTAB-3338 | biostudies-arrayexpress

Systemic gene expression profiles in patients with ventilator-associated pneumonia

Project description:This project was a prospective translational study aimed at evaluating gene expression profiles (GEP) of patients with ventilator-associated pneumonia (VAP) . GEP of VAP were compared with a control group of patients which did not developed ventilator-associated lower respiratory tract infection despite being subjected to mechanical ventilation.

2018-01-31 | E-MTAB-5638 | biostudies-arrayexpress

Peripheral blood gene expression profiles in obese subjects without metabolic syndrome.

Project description:Background: Understanding molecular basis involved in obesity is a crucial first step in developing therapeutic strategies against excess in body weight gain Objective: The purpose of our study was to assess if obesity possess unique peripheral blood gene expression profiles, in a pilot study.

2016-03-15 | E-MTAB-3017 | biostudies-arrayexpress

Physical activity diminish fatigue and systemic interferon response in multiple sclerosis

Project description:Objective: To evaluate gene expression profiles in multiple sclerosis (MS) patients who improved their fatigue status after a program of physical exercise and to compare them with healthy controls (HC). Methods: A prospective longitudinal study was conducted. Gene expression in whole blood was profiled at baseline in 7 healthy controls and also in 7 fatigued-MS patients. Patients underwent a physical exercise program for 6 months, and their fatigue status and gene expression profiles were again analyzed at the end of this program. Results: MS patients showed a significant activation of genes participating in the systemic interferon response in comparison with healthy controls. Fatigue improved at the end of the physical activity program, and, in parallel, systemic activation of interferon related genes disappeared. Conclusions: Fatigue improvement following an exercise program is associated to down modulation of interferon activity at the systemic level in MS patients. Our results provide a biological basis for the observed benefit of physical exercise in MS.

2015-09-27 | E-MTAB-2973 | biostudies-arrayexpress

An integrated transcriptome and expressed variant analysis of sepsis survival and death

Project description:Background: Sepsis, a leading cause of morbidity and mortality, is not a homogeneous disease but rather a syndrome encompassing many heterogeneous pathophysiologies. Patient factors including genetics predispose to poor outcomes, though current clinical characterizations fail to identify those at greatest risk of progression and mortality. Results: The Community Acquired Pneumonia and Sepsis Outcome Diagnostic study enrolled 1,152 subjects with suspected sepsis. We sequenced peripheral blood RNA of 129 representative subjects with systemic inflammatory response syndrome (SIRS) or sepsis (infection with SIRS), including 78 sepsis survivors and 28 sepsis nonsurvivors, who had previously undergone plasma proteomic and metabolomic profiling. The expression of 338 genes differed between subjects with SIRS and those with sepsis, primarily reflective of immune activation in sepsis. The expression of 1,238 genes differed with sepsis outcome: Nonsurvivors had lower expression of many immune function-related genes. Functional genetic variants associated with sepsis mortality were sought based on a common disease â rare variant hypothesis. VPS9D1, whose expression was increased in sepsis survivors, had a higher burden of missense variants in sepsis survivors, and these were associated with altered expression of 3,799 genes, primarily reflecting Golgi and endosome biology. Conclusions: Host response in sepsis survivors â activation of immune response-related genes â was muted in sepsis nonsurvivors. The association of sepsis survival with robust immune response and presence of missense variants in VPS9D1 warrants replication and further functional studies. We sequenced peripheral blood RNA of 129 representative subjects with systemic inflammatory response syndrome (SIRS, n=23) or sepsis (infection with SIRS), including 78 sepsis survivors and 28 sepsis nonsurvivors, who had previously undergone plasma proteomic and metabolomic profiling.

2015-01-01 | E-GEOD-63042 | biostudies-arrayexpress

Transcriptional instability in sepsis

Project description:The temporal evolution of sepsis was monitored by transcriptional profiling of five critically ill children with meningococcal sepsis and sepsis-induced multiple organ failure. Blood was sampled at 6 time points during the first 48 hours of their admission to pediatric intensive care, where the children received standard clinical treatment including organ support and antimicrobial therapy. Striking transcript instability was observed over the 48 hours, with increasing numbers of regulated genes over time. Most notably, proposed biomarkers for sepsis risk stratification also showed expression instability, with varied expression levels over 48 hours. This study demonstrates the extent of the complexity of temporal changes in gene expression that occur during the evolution of sepsis-induced multiple organ failure. Importantly, stratification tools that propose expression of biomarkers must take into account the temporal changes, over the use of single snapshots that may be less informative.

2013-04-03 | E-MEXP-3850 | biostudies-arrayexpress

Post-natal age is a critical determinant of the neonatal host response to sepsis

Project description:Neonates manifest a unique host response to sepsis even among other children. Preterm neonates may experience sepsis soon after birth or during often protracted birth hospitalizations as they attain physiologic maturity. We examined the transcriptome using genome-wide expression profiling on prospectively collected peripheral blood samples from infants evaluated for sepsis within 24 hours after clinical presentation. Simultaneous plasma samples were examined for alterations in inflammatory mediators. Group designation (sepsis or uninfected) was determined retrospectively based on clinical exam and laboratory results over the next 72 hours from the time of evaluation. Unsupervised analysis showed the major node of separation between groups was timing of sepsis episode relative to birth (early, <3 days or late, >3 days). Principal component analyses revealed significant differences between patients with early or late sepsis despite the presence of similar key immunologic pathway aberrations in both groups. Unique to neonates, the uninfected state and host response to sepsis is significantly affected by timing relative to birth. Future therapeutic approaches may need to be tailored to the timing of the infectious event based on post-natal age. We used human microarrays to detail the molecular profile of the events that occur following sepsis in hospitalized neonates Please note that 'uninfected chorio' represents babies who were not infected but had chorioamnionitis exposure

2015-07-06 | E-GEOD-69686 | biostudies-arrayexpress

Molecular lung immunopathology of uncumplicated pdm H1N1 pneumonia in mice.

Project description:In this work we generated a no-letal mice model infected with pandemic H1N1 virus in order to study the mechanisms implicated in the resolution of uncomplicated pneumonia by using gene expression profiles of lung tissues.

2017-09-25 | E-MTAB-3866 | biostudies-arrayexpress

Inflammasome-regulated cytokines are critical mediators of lung injury in humans.

Project description:A microarray analysis involving whole blood samples isolated from critically ill patients in the medical intensive care unit at Brigham and Women's Hospital. Four groups of intubated subjects undergoing mechanical ventilation were recruited for the study: those with sepsis alone (Sepsis), those with sepsis + ARDS (se/ARDS), those with SIRS (SIRS), and those whithout sepsis, SIRS, or ARDS (untreated). Blood was obtained from patients on the day of admission (day 0) and 7 days later. RNA was isolated from the whole blood samples and microarrays were prepared to determine differential gene expression between the four groups. Total RNA obtained from whole blood samples of critically ill patients

2012-07-10 | E-GEOD-32707 | biostudies-arrayexpress

Transcription profiling ofhuman pediatric systemic inflammatory response syndrome, sepsis, and septic shock spectrum

Project description:Normal children, children with SIRS, children with sepsis, and children with septic shock. Objectives: To advance our biological understanding of pediatric septic shock, we measured the genome-level expression profiles of critically ill children representing the systemic inflammatory response syndrome (SIRS), sepsis, and septic shock spectrum. Experiment Overall Design: Prospective observational study involving microarray-based bioinformatics.

2009-01-05 | E-GEOD-13904 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data