... dismutase) activity in plasma was calculated with a commercial SOD assay kit (Cayman). The plasma α-tocopherol concentration was measured by HPLC with fluorescence detection [ 22 ]. The quantification of urinary 8-isoprostane has been proposed as being superior to the measurement of circulating 8...

... study was undertaken firstly to study the regulatory mechanisms behind these effects, and secondly to see if these effects are specific to different isomers of CLA. Sixty healthy men and women, divided into six groups, were given a cyclo-oxygenase (COX)-2 inhibitor (rofecoxib; 12 mg/day), α-tocopherol...

... of lycopene (-29%; P <0.001), β-carotene (-22%; P <0.001), α-carotene (-22%; P <0.001) and cryptoxanthin (-17%; P <0.001) compared with normalbuminuric persons. Significant associations of microalbuminuria with plasma concentrations of α-tocopherol, retinol, lutein plus zeaxanthin and homocysteine...

... and oxidized), lipid peroxide, tocopherol and plasma elastase inhibitory capacity, ferroxidase activity and lipid peroxide in rats after inhalation of tobacco smoke. 2. Rats treated with the probucol diet for 3 days or 4 weeks equally showed no suppression of plasma elastase inhibitory capacity and ferroxidase...

... and immunodiffusion experiments showed that this effect is the function of two serum protein fractions. 3. One fraction was identified as transferrin. The second fraction includes caeruloplasmin. 4. Studies with radioactively labelled α-tocopherol showed that serum tocopherol in the physiological concentration range...

...G. R. Tudhope; J. Hopkins 1. The formation of Heinz bodies, after exposure of erythrocytes to hydrogen peroxide vapour, was significantly greater in cells from patients with plasma tocopherol levels of 11·6 μmol/l (5 mg/1) or less than in those from subjects with plasma tocopherol levels greater...