Results 281 to 290 of about 315,385 (314)

Superoxide in the Vascular System

Journal of Vascular Research, 2002
Oxidant 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, Richard A. Oeckler, Michael S. Wolin   +2 more
openaire   +2 more sources

Reductive elimination of superoxide: Structure and mechanism of superoxide reductases

Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics, 2010
Superoxide 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, Miguel Teixeira, A.F. Pinto   +2 more
openaire   +3 more sources

Superoxide constitutes a major signal of mitochondrial superoxide flash

Life Sciences, 2013
Mitochondrial 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, Tao Ye, Zhanglong Huang, Yanru Wang, Jiejia Xu, Wei Shang, Xianhua Wang, Xing Zhang, Tingting Hou, Feng Gao   +9 more
openaire   +3 more sources

Chloroplast manganese and superoxide

Biochemical and Biophysical Research Communications, 1975
Abstract Particles prepared from spinach chloroplast membranes with Triton X-100 inhibited the superoxide-mediated reduction of nitro-blue tetrazolium by riboflavin. This superoxide dismutase-like activity was of two kinds, one inactivated by heating and inhibited by H2O2 and the other insensitive to both of these treatments; both activities were ...
David O. Hall, J. Lumsden
openaire   +3 more sources

Development of superoxide sensor by superoxide dismutase immobilization

2001
In 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, Satoka Aoyagi, Seiichi Mochizuki, Takehiro Miyasaka, Kosuke Endo, Kiyotaka Sakai   +5 more
openaire   +2 more sources

Superoxidation of Bisretinoids

Angewandte Chemie International Edition, 2005
Steffen Jockusch, Koji Nakanishi, Ilyas Washington, Nicholas J. Turro, Yasuhiro Itagaki   +4 more
openaire   +3 more sources

Superoxide and the Superoxide Dismutases: An Introduction by Irwin Fridovich

2016
The 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

2008
Attempts 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, 1987
Noriaki Shinomiya, Tadatoshi Kuratsuji
openaire   +3 more sources

Biomimetic Design of Mitochondria‐Targeted Hybrid Nanozymes as Superoxide Scavengers

Advanced Materials, 2021
Adam C Midgley, Deling Kong, Lianyong Wang   +2 more
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