Structure and biochemical effects of fenofibrate

Area of Science:

• Pharmacology
• Biochemistry
• Cardiovascular Science

Background:

• Fibric acid derivatives are used to manage dyslipidemia.
• Fenofibrate is a common fibric acid derivative with known lipid-lowering effects.

Purpose of the Study:

• To comprehensively analyze the biochemical and physiological effects of fenofibrate.
• To investigate fenofibrate's impact on lipid metabolism, cholesterol synthesis, and platelet function.

Main Methods:

• Comparison of fibric acid derivative structures.
• Assessment of fenofibrate's effects on hepatic fatty acid synthesis and oxidation.
• Evaluation of fenofibrate's influence on lipoprotein lipase, cholesterol synthesis enzymes (HMG-CoA reductase, ACAT), and lecithin-cholesterol acyltransferase.
• Analysis of fenofibrate's effects on platelet aggregation and response to platelet-derived growth factor.

Main Results:

• Fenofibrate inhibits de novo hepatic fatty acid and very low-density lipoprotein synthesis.
• It enhances mitochondrial and peroxisomal fatty acid oxidation and lipoprotein lipase activity, significantly reducing plasma triglycerides.
• Fenofibrate inhibits cholesterol synthesis and may reduce cholesterol ester accumulation.
• It increases lecithin-cholesterol acyltransferase activity, potentially raising high-density lipoprotein cholesterol esters.
• The drug reduces spontaneous platelet aggregation and diminishes the effect of platelet-derived growth factor on DNA synthesis.

Conclusions:

• Fenofibrate effectively lowers plasma triglyceride levels through multiple mechanisms.
• Beyond lipid reduction, fenofibrate exhibits anti-atherogenic properties by modulating platelet activity.
• The multifaceted actions of fenofibrate suggest a broader therapeutic role in cardiovascular disease prevention.