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Blood Studies for Cardiovascular System III: Serum Lipid Profile01:25

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Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
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Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
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DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
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Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
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HDL and Sepsis.

Huanhuan Cao1, Wei Huang2,3

  • 1The Institute of Cardiovascular Sciences and Institute of Systems Biomedicine, School of Basic Medical Sciences, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing Key Laboratory of Cardiovascular Receptors Research, Health Science Center, Peking University, Beijing, China.

Advances in Experimental Medicine and Biology
|May 16, 2022
PubMed
Summary
This summary is machine-generated.

High-density lipoprotein (HDL) shows protective effects against sepsis, a major global health issue. Research suggests HDL and its mimetics hold therapeutic potential for treating sepsis patients.

Keywords:
HDLSepsisapoA-I mimetic peptidesrHDL

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Area of Science:

  • Biochemistry
  • Immunology
  • Pathophysiology

Background:

  • Sepsis is a significant global health concern characterized by high morbidity and mortality.
  • High-density lipoprotein (HDL) plays a crucial role in inflammation beyond its lipid transport function.
  • Septic patients exhibit significantly reduced HDL levels.

Purpose of the Study:

  • To explore the protective roles of HDL in sepsis pathophysiology.
  • To investigate the therapeutic potential of HDL and its derivatives in sepsis treatment.

Main Methods:

  • Review of existing studies on HDL function in sepsis.
  • Analysis of HDL's effects on pathogens, macrophages, and endothelial cells.
  • Evaluation of recombinant HDL (rHDL) and apoA-I mimetic peptides as therapeutic agents.

Main Results:

  • HDL demonstrates protective effects against sepsis by interacting with pathogens.
  • HDL inhibits inflammatory responses in macrophages during sepsis.
  • HDL modulates endothelial function, offering protection in septic conditions.
  • rHDL and apoA-I mimetic peptides show promise as sepsis therapeutics.

Conclusions:

  • HDL possesses multifaceted protective mechanisms against sepsis.
  • HDL and its analogs represent a promising therapeutic avenue for sepsis management.
  • Further research into HDL-based therapies is warranted for sepsis treatment.