This study will use biobanked samples from a diverse cohort of 165 sepsis patients (UF Jacksonville and UF Gainesville) and will confirm findings in a small prospective cohort of 50 patients. The following will be tested in patient samples:
Aim 1: Test and compare HDL and LDL function (oxidation/transport) in sepsis patients by clinical outcomes of rapid recovery, early death, CCI, and sepsis recidivism.
Aim 2: Determine the changes in lipid homeostasis and patterns of inflammation that occur in sepsis patients by outcome.
Aim 3: Characterize cholesterol \& lipoprotein-specific metabolic gene expression in whole blood leukocytes and peripheral blood mononuclear cells from sepsis patients.