High-density lipoproteins during sepsis: from bench to bedside

Area of Science:

• Cardiovascular Medicine
• Immunology
• Biochemistry

Background:

• High-density lipoproteins (HDL) possess cardioprotective and pleiotropic functions, including antioxidant and anti-inflammatory effects.
• HDL cholesterol levels significantly decrease during sepsis, correlating with increased morbidity and mortality.
• Sepsis induces structural and functional alterations in HDL particles, impairing their protective capabilities.

Purpose of the Study:

• To review the multifaceted effects of HDL relevant to inflammatory conditions, particularly sepsis.
• To detail lipoprotein modifications observed during sepsis.
• To discuss the therapeutic potential of HDL in managing sepsis.

Main Methods:

• Review of clinical data linking HDL levels to sepsis outcomes.
• Analysis of experimental studies on HDL function in inflammatory states.
• Evaluation of animal models investigating HDL infusion for sepsis treatment.

Main Results:

• HDL levels are a biomarker for sepsis severity and prognosis.
• HDL particles undergo significant functional and structural changes in sepsis.
• HDL infusion in animal sepsis models improved survival and endothelial protection.

Conclusions:

• HDL exhibits potent anti-inflammatory and protective properties relevant to sepsis.
• Therapeutic strategies involving HDL may offer a promising approach to sepsis treatment.
• Further research into HDL therapy could significantly impact sepsis management and patient outcomes.