Arsenic-containing lipids in the oil from the blue whiting fish (Micromesistius poutassou) were separated into three broad polarity groups and investigated by HPLC and mass spectrometry. A total of 11 arsenolipids including 4 new compounds were identified. The polar lipid fraction constituting 24% of the total arsenolipid content (which totalled 2.16 μg As/g) contained four known dimethylarsino...

Objective: To study the antioxidant activity of various extracts and fractions of Acacia arabica by in vitro and in vivo experimental models. Materials and Methods: Various solvent extracts were prepared by Soxhlet extraction. Extract fractionations were done by solvent-solvent extraction and flash chromatographic separation. In vitro lipid peroxidation was carried out by tertiary butyl hydrope...

antioxidant consumption has been reported to be inversely associated with the incidence of coronary artery disease. to clarify the possible role of vitamin e and volatile oils in the prevention of atherosclerosis, the effects of these compounds on the susceptibility of low-density lipoprotein (ldl) to oxidative modification were investigated. in this study, vitamin e and seven volatile oils “an...

Free amino acids, free monosaccharides and total saccharides released upon hydrolysis, sterols, and triterpenoids of the leaves of Aloe barbadensis Miller leaves were determined. Some seventeen amino acids, D-glucose, and D-mannose were present in the water-soluble fraction. Cholesterol, campesterol, β-sitosterol, and lupeol were found in substantial amounts in the lipid fraction. An unknown(s)...

Introduction Patients with carotid plaque undergo endarterectomy based on empirical guidelines, primarily the magnitude of stenosis. There is significant perioperative morbidity and mortality associated with this procedure, and unfortunately many patients undergoing endarterectomy are found to have stable fibrotic plaque unlikely to cause thromboembolus. Patients who would derive benefit from c...

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...

The thylakoid membrane is the site of photochemical and electron transport reactions of oxygenic photosynthesis. The lipid composition of the thylakoid membrane, with two galactolipids, one sulfolipid, and one phospholipid, is highly conserved among oxygenic photosynthetic organisms. Besides providing a lipid bilayer matrix, thylakoid lipids are integrated in photosynthetic complexes particular...

Red drum larvae were fed, from day 11 to day 24 post-hatch, with Artemia (LP group) or two isoproteinic-formulated diets with varying lipid levels, 15% (L15 group) and 30% (L30 group). The lipid fraction was composed of a mixture of cod liver oil and soy lecithin. Larvae fed Artemia exhibited the greatest length; L30 diet induced a larvae length significantly greater than that obtained with L15...

1. Methods using t.l.c. and high-pressure liquid chromatography (h.p.l.c.) have been used to separate the complex variety of substances possessing a carbonyl function that are produced during lipid peroxidation. 2. The major type of lipid peroxidation studied was the ADP-Fe2+-stimulated peroxidation of rat liver microsomal phospholipids. Preliminary separation of the polar and non-polar product...

Previously, it has been shown that phospholipids, cholesterol, and glycolipids could be quantitated using the same high performance thin-layer chromatography (HPTLC) method. Here we examined that method in terms of linearity of standards in the nanogram range, recovery of nonacidic and acidic lipids after Sephadex column chromatography, and quantitation of lipids in mouse synaptic plasma membra...