The Role of Dysfunctional HDL in Sepsis

2016-10-18 02:08:21 | BioPortfolio


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.

Study Design

Observational Model: Cohort, Time Perspective: Prospective




Observational study


Not yet recruiting


University of Florida

Results (where available)

View Results


Published on BioPortfolio: 2016-10-18T02:08:21-0400

Clinical Trials [695 Associated Clinical Trials listed on BioPortfolio]

Dissecting How Peripheral Lymphocytes Are Lost During Sepsis:a Observational,Clinical Study.

There is an observational, clinical study. We recruit sepsis patients to investigate what drives peripheral lymphocyte loss in sepsis.

Effect of APC and Epo on the Inflammatory Response During Sepsis

An observational study to determine the effect of APC and Epo in reducing the systemic inflammatory response during severe sepsis.

Bispectral Index (BIS) for Classification of Procalcitonin (PCT) Sepsis Grades in Critically Ill Patients With Sepsis

To evaluate the discriminative power of BIS monitoring to classify the degree of mental state associated with the PCT graded sepsis cascade, and to assess its utility for monitoring the im...

Observational Study to Understand the Impact of Community-acquired Sepsis Patients'Immunosuppression in Early Stage to Prognosis

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...

Predictive algoRithm for EValuation and Intervention in SEpsis

In this prospective study, the ability of a machine learning algorithm to predict sepsis and influence clinical outcomes, will be investigated at Cabell Huntington Hospital (CHH).

PubMed Articles [11075 Associated PubMed Articles listed on BioPortfolio]

Persistent low serum zinc is associated with recurrent sepsis in critically ill patients - A pilot study.

Zinc is an essential trace element for both pathogens and hosts. Hypozincemia is a well known phenomenon in sepsis patients and represents the innate immune systems attempt to deprive pathogens of zin...

Epidemiology and impact on all-cause mortality of sepsis in Norwegian hospitals: A national retrospective study.

Although sepsis is the leading cause of death from infection, there are few population-level epidemiological sepsis reports. The impact of sepsis-related deaths on all-cause hospital mortality is insu...

Relationship Between a Sepsis Intervention Bundle and In-Hospital Mortality Among Hospitalized Patients: A Retrospective Analysis of Real-World Data.

Sepsis is a systemic response to infection that can lead to tissue damage, organ failure, and death. Efforts have been made to develop evidence-based intervention bundles to identify and manage sepsis...

New criteria for sepsis-induced coagulopathy (SIC) following the revised sepsis definition: a retrospective analysis of a nationwide survey.

Recent clinical studies have shown that anticoagulant therapy might be effective only in specific at-risk subgroups of patients with sepsis and coagulation dysfunction. The definition of sepsis was re...

HDL Cholesterol Efflux is Impaired in Older Patients with Early Sepsis: A Subanalysis of a Prospective Pilot Study.

Proper functioning of high density lipoprotein (HDL) is necessary for protection against sepsis. However, previous work has demonstrated that HDL becomes oxidized and dysfunctional (Dys-HDL) during se...

Medical and Biotech [MESH] Definitions

A work that reports on the results of a clinical study in which participants may receive diagnostic, therapeutic, or other types of interventions, but the investigator does not assign participants to specific interventions (as in an interventional 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.

A work that reports on the results of a research study to evaluate interventions or exposures on biomedical or health-related outcomes. The two main types of clinical studies are interventional studies (clinical trials) and observational studies. While most clinical studies concern humans, this publication type may be used for clinical veterinary articles meeting the requisites for humans.

Works about clinical studies in which participants may receive diagnostic, therapeutic, or other types of interventions, but the investigator does not assign participants to specific interventions (as in an interventional study).

Acute neurological dysfunction during severe SEPSIS in the absence of direct brain infection characterized by systemic inflammation and BLOOD BRAIN BARRIER perturbation.

More From BioPortfolio on "The Role of Dysfunctional HDL in Sepsis"

Quick Search

Relevant Topics

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 ...

Searches Linking to this Trial