Angiotoxicity and atherogenicity of cholesterol oxides.

Abstract

Cholesterol in the diet can readily autoxidize and be absorbed and transported in plasma lipoproteins. Cholesterol oxides can also be endogenously produced in tissues via free-radical-induced reactions. Some cholesterol oxides, notably cholestane-3 beta, 5 alpha, 6 beta-triol and 25-hydroxycholesterol, have been shown to cause injury to vascular endothelial and smooth muscle cells, to alter LDL receptor function, to enhance cholesteryl ester accumulation, to inhibit prostacyclin production, and to induce experimental atherosclerosis alone or in combination with cholesterol. An epidemiological study examining relationships between atherosclerosis and plasma levels of cholesterol oxides as independent risk factors may provide additional insights regarding the roles of cholesterol oxides in atherogenesis.

• Authors: S K Peng, B Hu, R J Morin
• Journal: Journal of clinical laboratory analysis (J Clin Lab Anal) Vol. 5 Issue 2 Pg. 144-52 ( 1991) ISSN: 0887-8013 [Print] United States
• PMID: 2023060 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Review)

Chemical References

• Cholesterol Esters
• Prostaglandins
• Receptors, LDL
• Cholesterol

Topics

• Animals
• Arteriosclerosis (etiology)
• Blood Vessels (drug effects, injuries)
• Capillary Permeability (drug effects)
• Cholesterol (metabolism, pharmacology)
• Cholesterol Esters (metabolism)
• Foam Cells (drug effects, pathology)
• Oxidation-Reduction
• Platelet Adhesiveness (drug effects)
• Prostaglandins (biosynthesis)
• Receptors, LDL (drug effects)