Related Experiment Video
Updated: Apr 26, 2026

Isolation and Analysis of Plasma Lipoproteins by Ultracentrifugation
Published on: January 28, 2021
Approach to reduction of blood atherogenicity
Alexander N Orekhov1, Alexandra A Melnichenko1, Igor A Sobenin2
1Institute for Atherosclerosis Research, Skolkovo Innovation Center, P.O. Box No. 21, Moscow 121609, Russia ; Institute of General Pathology and Pathophysiology, Baltiyskaya Street 8, Moscow 125315, Russia.
Insights
Blood sera from coronary heart disease (CHD) patients contain atherogenic factors, including modified low-density lipoproteins (LDL) and autoantibodies. A new method removes non-lipid factors, showing promise in preventing atherosclerosis progression.
Area of Science:
- Cardiovascular Science
- Immunology
- Biochemistry
Background:
- Blood sera from coronary heart disease (CHD) patients elevate lipid levels in human aortic subendothelial cells.
- Atherogenicity of sera is linked to modified low-density lipoproteins (LDL) and autoantibodies against them.
Purpose of the Study:
- To investigate the impact of non-lipid factors on blood atherogenicity.
- To develop and test a method for removing non-lipid atherogenic factors from patient blood serum.
Main Methods:
- Developed an approach using immobilized LDL to remove non-lipid atherogenic factors.
- Applied this method via extracorporeal perfusion of patient blood through an immobilized LDL column.
Main Results:
- Demonstrated a significant contribution of non-lipid factors to blood atherogenicity.
- Successfully removed non-lipid atherogenic factors from blood serum using the developed approach.
Conclusions:
- The developed method effectively removes non-lipid atherogenic factors.
- Pilot clinical studies indicate the efficacy of this approach in preventing coronary atherosclerosis progression.
Abstract:
We have earlier found that blood sera of patients with coronary heart disease (CHD) increase lipid levels in cells cultured from subendothelial intima of human aorta. We have also revealed that the ability of blood sera to raise intracellular cholesterol; that is, their atherogenicity is caused by at least modified low density lipoprotein (LDL) circulating in the blood of patients and autoantibodies to modified LDL. In the present work we have demonstrated significant impact of nonlipid factor(s) to blood atherogenicity. We have developed an approach to removal of nonlipid atherogenicity factor(s) from blood serum based on the use of immobilized LDL. This approach was used for extracorporeal perfusion of patient's blood through the column with immobilized LDL. Pilot clinical study confirmed the efficacy of this approach for prevention of coronary atherosclerosis progression.
Related Concept Videos
Atherosclerosis III: Management
Lipid-Lowering Drugs: Statins and Miscellaneous Agents
Alcohols from Carbonyl Compounds: Reduction
Catalytic hydrogenation is similar to the reduction of an alkene or alkyne by adding H2 across the pi bond in the presence of transition metal catalysts like Raney Ni, Pd–C, Pt, or Ru. Aldehydes and ketones can be reduced by this method, often under mild to moderate heat...
Atherosclerosis I: Introduction
Phase I Reactions: Reductive Reactions
Coronary Artery Disease IV: Preventive Measures
