Results 271 to 280 of about 523,877 (311)

Antioxidant Enzymes in Barley Green Biomass

Plant Foods for Human Nutrition, 2009
Green biomass of young barley plants exhibited statistically significant higher activity of superoxide dismutase (SOD) and catalase (CAT) at sampling I (in the phase of plant development DC 29) compared to the later sampling II (DC 31). Significant effects of varieties, years and interactions of the studied factors on the activity of the studied ...
J, Ehrenbergerová, N, Brezinová Belcredi, J, Kopácek, L, Melisová, P, Hrstková, S, Macuchová, K, Vaculová, I, Paulícková   +7 more
openaire   +2 more sources

Inactivation of antioxidant enzymes by peroxynitrite

Scandinavian Journal of Clinical and Laboratory Investigation, 2000
Exposure of hemolysates and whole erythrocytes to peroxynitrite (bolus of 50 micromol dm(-3)-2 mmol dm(-3)) was found to inactivate erythrocyte antioxidant enzymes: glutathione peroxidase > superoxide dismutase > catalase. Inactivation of antioxidant enzymes by peroxynitrite may be one reason for the secondary oxidative stress in peroxynitrite-treated ...
A, Grzelak, M, Soszyński, G, Bartosz
openaire   +2 more sources

Antioxidant enzyme families in parasitic nematodes

Molecular and Biochemical Parasitology, 2001
Parasitic nematodes, like all aerobic organisms, require antioxidant enzymes to cope with reactive oxygen species (ROS) generated during cellular metabolism. Additionally, they have to protect themselves against ROS produced by the host. Parasitic nematode enzymes that deal with the superoxide anion radical, the superoxide dismutases (SODs), have been ...
K, Henkle-Dührsen, A, Kampkötter
openaire   +2 more sources

Ozone-induced inactivation of antioxidant enzymes

Biochimie, 2003
Ozone is an air pollutant that damages a variety of biomolecules. We investigated ozone-induced inactivation of three major antioxidant enzymes. Cu/Zn superoxide dismutase was inactivated by ozone in a concentration-dependent manner. The concentration of ozone for 50% inactivation was approximately 45 microM when 10 microM Cu/Zn superoxide dismutase ...
Yong-Ki, Lee, Sang, Mok Kim, Sanghwa, Han   +2 more
openaire   +2 more sources

Free radicals, antioxidant enzymes, and carcinogenesis

Free Radical Biology and Medicine, 1990
Free radicals are found to be involved in both initiation and promotion of multistage carcinogenesis. These highly reactive compounds can act as initiators and/or promoters, cause DNA damage, activate procarcinogens, and alter the cellular antioxidant defense system.
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Antioxidant Enzymes

2014
Guillermo T. Sáez, Nuria Están-Capell
openaire   +2 more sources

Pharmacogenetics of cylic guanylate, antioxidants, and antioxidants enzymes in saccharomyces

Free Radical Biology and Medicine, 1990
Supplements of antioxidants, superoxide dismutase (SOD), catalase, cyclic guanylate (cGMP), and theophylline, or omission of iron and copper from the medium are therapeutic for the inferior growth and viability of yeast mutants doubly deficient in mitochondrial and exocellular SOD isozymes under oxidative stresses.
openaire   +2 more sources

Regulatory Antioxidant Enzymes

2003
C E, Pippenger, R W, Browne, D, Armstrong   +2 more
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Carbohydrate-active enzymes (CAZymes) in the gut microbiome

Nature Reviews Microbiology, 2022
Jacob F Wardman, Peter Rahfeld, Stephen G Withers   +2 more
exaly  

Radioprotection by antioxidant enzymes and enzyme mimetics

Pharmacology & Therapeutics, 1988
K S, Kumar, Y N, Vaishnav, J F, Weiss
openaire   +2 more sources