1. Activities, contents and true specific activities of superoxide dismutase (SOD) were determined in human erythrocytes of 105 normal healthy subjects. 2. The mean SOD activity assayed by the inhibition of xanthine autoxidation was 11.0 x 103 units/g of haemoglobin (Hb). 3. The mean SOD content assayed by an immunochemical method was 456 micrograms/g of Hb. 4. Both activity and content of SOD ...

Superoxide dismutase (oxide dismutase) is an enzyme synthesized via the expression of SOD-related genes. It first line defense against oxygen free radicals, and it widely exists in cytoplasm, chloroplasts, mitochondria. However, SOD gene family woody plant Liriodendron chinense has not been studied. To reveal potential role genes, we systematically identified analyzed L. chinense, investigated ...

Reactive oxygen species (ROS) secreted by activated macrophages play a central role in causing rheumatoid arthritis, and therapeutics that can inhibit the production of ROS by macrophages have great clinical potential. Superoxide dismutase (SOD) and catalase (CAT) are two enzymes that scavenge ROS and have great potential for treating rheumatoid arthritis. However, clinical trials with these en...

The potential benefits to health of antioxidant enzymes supplied either through dietary intake or supplementation is still a matter of controversy. The development of dietary delivery systems using wheat gliadin biopolymers as a natural carrier represents a new alternative. Combination of antioxidant enzymes with this natural carrier not only delayed their degradation (i.e. the superoxide dismu...

PURPOSE To determine the activity of seminal plasma catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPX) and their relationship with malondialdehyde (MDA), as a marker of lipid peroxidation, content of spermatozoa and seminal plasma in normozoospermic and asthenozoospermic males. MATERIALS AND METHODS Semen samples were obtained from 15 normozoospermic and 30 asthenozoo...

Styrax japonicus is a small ornamental tree with medicinal values, although its flowering period short. To date, information about the morphological and physiological characteristics of petals during limited. In this study, we observed structure at full stage scanning electron microscope detected contents nutrients, minerals, endogenous hormones activities enzymes different stages. The results ...

Epithelial ovarian cancer (EOC) cells are under intrinsic oxidative stress, which alters metabolic activity and reduces apoptosis. Key oxidative stress enzymes, including myeloperoxidase (MPO) and inducible nitric oxide synthase (iNOS), are upregulated and colocalized in EOC cells. Oxidative stress is also regulated, in part, by superoxide dismutase (SOD) and hypoxia-inducible factor (HIF) 1a. ...