Results 301 to 310 of about 44,426 (335)
Some of the next articles are maybe not open access.
Reactions of Superoxide with Myeloperoxidase
Biochemistry, 2007When neutrophils ingest bacteria, they discharge superoxide and myeloperoxidase into phagosomes. Both are essential for killing of the phagocytosed micro-organisms. It is generally accepted that superoxide is a precursor of hydrogen peroxide which myeloperoxidase uses to oxidize chloride to hypochlorous acid. Previously, we demonstrated that superoxide
Mark B. Hampton +3 more
openaire +3 more sources
Superoxide in the Vascular System
Journal of Vascular Research, 2002Oxidant production and regulation is becoming increasingly important in the study of vascular signaling mechanisms, and recent reviews have characterized some of the possible roles for known downstream products of superoxide formation. In this review, we will examine current research in the field, with a special emphasis on the role of the superoxide ...
Sachin A. Gupte +2 more
openaire +2 more sources
Reductive elimination of superoxide: Structure and mechanism of superoxide reductases
Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics, 2010Superoxide anion is among the deleterious reactive oxygen species, towards which all organisms have specialized detoxifying enzymes. For quite a long time, superoxide elimination was thought to occur through its dismutation, catalyzed by Fe, Cu, and Mn or, as more recently discovered, by Ni-containing enzymes.
João V. Rodrigues +2 more
openaire +3 more sources
Superoxide constitutes a major signal of mitochondrial superoxide flash
Life Sciences, 2013Mitochondrial flashes detected with an N- and C-terminal circularly-permuted yellow fluorescent protein (cpYFP) have been thought to represent transient and quantal bursts of superoxide production under physiological, stressful and pathophysiological conditions.
Heping Cheng +9 more
openaire +3 more sources
Development of superoxide sensor by superoxide dismutase immobilization
2001In the present study, superoxide (O2) (one of reactive oxygen species) concentration was measured directly using a superoxide dismutase (SOD)-immobilized electrode. Using a batch cell, super-oxide production from oxidation of hypoxanthine with xanthine oxidase (XOD) was determined from current data.
Naoyuki Himi +5 more
openaire +2 more sources
Superoxidation of Bisretinoids
Angewandte Chemie International Edition, 2005Steffen Jockusch +4 more
openaire +3 more sources
Superoxide and the Superoxide Dismutases: An Introduction by Irwin Fridovich
2016The univalent reduction of molecular oxygen to superoxide is the facile pathway for oxygen reduction because of the spin restriction facing its divalent reduction by pairs of spin-opposed electrons. The reactivity of superoxide, and of its conjugate acid the hydroperoxyl radical, threatens aerobic life.
openaire +2 more sources
Superoxide Dismutases: Defence Against Endogenous Superoxide Radical
2008Attempts to measure the rate of O2- production, in whole cells or in intact subcellular organelles, are frustrated by the endogenous superoxide dismutase (SOD). Streptococcus faecalis contains a single manganese-SOD which was isolated and used as an antigen in the rabbit. A precipitating and inhibiting antibody was obtained and used to suppress the SOD
openaire +3 more sources
Superoxide and Superoxide Dismutase in Bronchial Asthma
Pediatrics International, 1987Noriaki Shinomiya, Tadatoshi Kuratsuji
openaire +3 more sources
Microbial Superoxide Dismutases
1989Publisher Summary The presence of oxygen in the environment presents both advantages and threat to all forms of life. The use of oxygen as a final electron acceptor provides more energy than that afforded by anaerobic fermentation. Oxygen is also useful in many biosynthetic reactions.
openaire +2 more sources