Cholesterol autoxidation

Autoxidation of cholesterol in aqueous dispersions and in monomolecular films.

The autoxidative formation of 7-ketocholesterol and diols from aqueous cholesterol dispersions and from cholesterol monomolecular films has been studied as a function of time. The rate of oxidation of cholesterol is much faster at the surface than in the bulk. Whereas more than one-half of the cholesterol is oxidized at the surface within 8 hr at room temperature, no noticeable reaction was obs...

Autoxidation of Lipids in Parchment

Historic parchment is a macromolecular material, which is complex due to its natural origin, inhomogeneity of the skin structure, unknown environmental history and potential localised degradation. Most research into its stability has so far focussed on thermal and structural methods of analyses. Using gas-chromatographic analysis of the atmosphere surrounding parchment during oxidation, we prov...

Tissue autoxidation inhibitors. I. The inhibition of DOPA autoxidation by extracts from normal and neoplastic tissues.

Autoxidation of Fats and Oils

Products that contain fats and oils turn rancid and deteriorate in other ways when they arc exposed to air. The action^ known as autoxidation, imparts disagreeable flavors and odors to fats and foods containing them. For a long time baffled investigators spent a vast amount of effort trying to find ways to prevent autoxidation. Specifically, the basic problem was the mechanism of autoxidation—h...

Correlation between serum content of the main COPs (cholesterol oxidation products) from autoxidation and cardiovascular risk factors.

BACKGROUND/AIMS Risk factors for cardiovascular disease (CVD) have been proven to be associated with an increased oxidative stress. Several studies have considered cholesterol oxidation products (COPs) as specific in vivo markers of oxidative stress. The aim of this study was to investigate the association between the levels of COPs derived from autoxidation processes and established cardiovasc...