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To determine the role of dysfunctional high density lipoprotein (Dys-HDL) in predicting or mediating progression to chronic critical illness or morbid long-term outcomes in patients being treated for community-acquired or hospital-acquired sepsis.
The long-term goal of this research program is to characterize the antecedents and mediators of morbid long-term outcomes in patients with sepsis. Despite successful early management, sepsis is a disease with a high incidence of chronic critical illness (CCI - intensive care unit stay ≥ 14 days with organ dysfunction) and morbid long-term outcomes (functional dependence or death at 1 year), which occur frequently in early survivors. Both the rapid identification of patients at risk for morbid outcomes and the development of novel therapies are crucial for improving outcomes after sepsis. High density lipoprotein (HDL) defends against sepsis-associated organ injury by: 1) neutralizing bacterial endotoxin, 2) modulating innate cellular immunity and preventing release of inflammatory cytokines, and 3) preventing endothelial cell activation and dysfunction. However, HDL can become dysfunctional (Dys-HDL) in the setting of inflammation, losing protective functions and becoming pro-inflammatory. Our preliminary results demonstrate that Dys-HDL is present in early sepsis and that persistent Dys-HDL elevation (first 48 hours) is associated with adverse outcomes (death, hospice or nursing home care). The overall goal of this proposal is to investigate and fully characterize the role of Dys-HDL in a diverse population of patients with both CA and HA-sepsis. The central hypothesis of this study is that structural and functional changes in HDL during sepsis are associated with the persistent presence of Dys-HDL as well as the inflammation and endothelial dysfunction that lead to acute organ dysfunction, CCI, and morbid long-term outcomes. To test this, we will enroll 160 patients in a two-site, prospective, longitudinal, cohort study.
Observational Model: Cohort, Time Perspective: Prospective
Not yet recruiting
University of Florida
Published on BioPortfolio: 2016-10-18T02:08:21-0400
An observational study to determine the effect of APC and Epo in reducing the systemic inflammatory response during severe sepsis.
The purpose of this study is to understand the impact community-acquired sepsis patients'immunosuppression in early stage to prognosis,including mortality and chance of secondary infection...
A sepsis early warning predictive algorithm, InSight, has been developed and validated on a large, diverse patient cohort. In this prospective study, the ability of InSight to predict seve...
In this observational study, the NICHD Neonatal Research Network (NRN) is conducting surveillance of all infants born at NRN centers to identify all newborns who are diagnosed with early-o...
Background Sepsis is a common disease leading to high morbidity and mortality. Gut microbiota and/or gut permeability may play a crucial role in the development of organ dysfunction. ...
The study of sepsis is hindered by its heterogeneous time course and evolution. A subgroup of patients with severe sepsis develops shock soon after the initiation of treatment while others present hyp...
Limited data are available on sepsis in low-resource settings, particularly outside of urban referral centers. We conducted a prospective observational single-center cohort study in May 2013 to assess...
The aim of this study was to measure neutrophil function longitudinally following burn injury and to examine the relationship between neutrophil dysfunction and sepsis.
This study examined the heart rate variability characteristics associated with early onset neonatal sepsis in a prospective, observational controlled study.
Systemic inflammatory response syndrome with a proven or suspected infectious etiology. When sepsis is associated with organ dysfunction distant from the site of infection, it is called severe sepsis. When sepsis is accompanied by HYPOTENSION despite adequate fluid infusion, it is called SEPTIC SHOCK.
Sepsis associated with HYPOTENSION or hypoperfusion despite adequate fluid resuscitation. Perfusion abnormalities may include, but are not limited to LACTIC ACIDOSIS; OLIGURIA; or acute alteration in mental status.
A genus of gram-negative, anaerobic bacteria in the family Desulfovibrionaceae. It was originally recovered from infections in patients with gangrenous and PERFORATED APPENDICITIS. It is also associated with ABSCESS; BACTEREMIA; and BILIARY TRACT sepsis.
Work consisting of a controlled study executed by several cooperating institutions.
The presence of fungi circulating in the blood. Opportunistic fungal sepsis is seen most often in immunosuppressed patients with severe neutropenia or in postoperative patients with intravenous catheters and usually follows prolonged antibiotic therapy.
Sepsis, septicaemia and blood poisoning
Septicaemia (another name for blood poisoning) refers to a bacterial infection of the blood, whereas sepsis can also be caused by viral or fungal infections. Sepsis is not just limited to the blood and can affect the whole body, including the organ...
Antiretroviral Therapy Clostridium Difficile Ebola HIV & AIDS Infectious Diseases Influenza Malaria Measles Sepsis Swine Flu Tropical Medicine Tuberculosis Infectious diseases are caused by pathogenic...
Allergies Automimmune Disease Human Papillomavirus (HPV) Immunology Vaccine Immunology is the study of immunity and the defence mechanisms of the body. A greater understanding of immunology is needed to develop vaccines, understand ...