نتایج جستجو برای: lipid peroxides
تعداد نتایج: 174645 فیلتر نتایج به سال:
In this study, we assessed the antioxidative ability of 23 natural sources in a meat model system at same addition level (1.0%). We evaluated free radical (2,2-diphenyl-1-picrylhydrazyl, DPPH) scavenging plant and their peroxides, as well aldehyde-inhibiting pork patties, over 10 days cold storage. It was found that blueberries, cherries, onions, black tea, clove buds (20.6–25.0 mg AA/g) have h...
PURPOSE To develop a highly sensitive method for in vivo quantitation of intravitreal peroxides by vitreous fluorophotometry with 2',7'-dichlorofluorescin (DCFH), a hydrogen peroxide (H2O2)-sensitive fluorescent dye, and to measure peroxides in the vitreous humor after panretinal laser photocoagulation (PRP). METHODS In the presence of H2O2 and lipid hydroperoxides, nonfluorescent DCFH was ox...
Oxidants or reactive oxygen species (ROS) have been implicated in the pathology of a number of human diseases including insulin-dependent diabetes mellitus (IDDM) and non-isulin-dependent diabetes mellitus (NIDDM). Sato et al. (1979) were the first to report increased levels of plasma thiobarbituric acid-reactive substances (TBARS), a putative measure of ROS-induced lipid peroxidative damage, i...
The intake of antioxidants intake has been reported to be inversely associated with the incidence of coronary artery disease. To clarify the possible role of lipophilic antioxidants in prevention of atherosclerosis, we investigated the effects of lycopene on the susceptibility of low-density lipoprotein (LDL) to oxidative modification. In this study, “lycopene” was added to plasma and incubated...
Protein tyrosine phosphatases (PTPs) are regulated through reversible oxidation of the active-site cysteine. Previous studies have implied soluble reactive oxygen species (ROS), like H(2)O(2), as the mediators of PTP oxidation. The potential role(s) of peroxidized lipids in PTP oxidation have not been described. This study demonstrates that increases in cellular lipid peroxides, induced by disr...
High-density lipoprotein (HDL) provides a pathway for the passage of lipid peroxides and lysophospholipids to the liver via hepatic scavenger receptors. Perhaps more importantly, HDL actually metabolizes lipid hydroperoxides preventing their accumulation on low-density lipoprotein (LDL), thus impeding its atherogenic structural modification. A number of candidates have been suggested to be resp...
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