Results 31 to 40 of about 177,698 (261)
Frontiers in Chemistry, 2023 Introduction: Natural antioxidants are vital to promote health and treat critical disease conditions in the modern healthcare system. This work adds to the index of natural medicines by exploring the antioxidant potential of Dodonaea viscosa Jacq. (Plant-
Siraj Khan +12 more
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Catalase Activity in Pathogenic Leptospira [PDF]
Journal of General Microbiology, 1960 SUMMARY: Catalase activity of an order comparable with that of aerobic bacteria was demonstrated in many strains of pathogenic leptospira. There was no correlation with serotype or virulence. Catalase was intracellular; its activity was increased by lysing the leptospires with bile salt or by freezing and thawing, and was inhibited by 0·001 M-KCN or ...
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Acute caffeine treatment protects the developing retina from ischemia‐induced cell death
FEBS Open Bio, EarlyView.Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento +6 more
wiley +1 more source
Protective Effects of Melatonin on Saccharomyces cerevisiae under Ethanol Stress
Antioxidants, 2021 During alcoholic fermentation, Saccharomyces cerevisiae is subjected to several stresses, among which ethanol is of capital importance. Melatonin, a bioactive molecule synthesized by yeast during alcoholic fermentation, has an antioxidant role and is ...
Mercè Sunyer-Figueres +3 more
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CATALASE ACTIVITY IN ESCHERICHIA COLI [PDF]
Journal of Bacteriology, 1952 Witkin (1946) reported a mutant, designated Escherichia coli, strain B/r, which was more resistant to direct ultraviolet radiations than the parent strain B of E. coli. The same mutant also was found to be more resistant to X-rays, penicillin, sodium sulfathiazole (Witkin, 1947), and nitrogen mustard (Bryson, 1948).
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FEBS Open Bio, EarlyView.NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks +4 more
wiley +1 more source
Development of method for the mineral water catalase activity determination
Trudy Odesskogo Politehničeskogo Universiteta, 2015 Biological effects of mineral water depend not only on the chemical composition but also on the metabolic products of microbial cenosis. Among numerous microorganisms constituting the autochthonous microflora of mineral waters, we do evolve the ...
Olena М. Nikipelova +2 more
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Chemistry Proceedings, 2022 Soil enzymes secure our food security; however, they are sensitive to abiotic stresses. Solving the global issues of food waste by implementing Sandwich compost can be a great solution to secure food security.
Chooi Lin Phooi +2 more
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Advanced Healthcare Materials, EarlyView.Mitochondria‐targeted nanotherapies emerge as a promising strategy for combating aging‐associated neurodegenerative disorders (NDs) by restoring mitochondrial function, reducing oxidative stress, and improving neuronal survival. Recent advances in nanotechnology, therapeutic delivery, and translational research are highlighted, providing insights into ...
Dnyandev G. Gadhave +8 more
wiley +1 more source
A molecular switch and electronic circuit modulate catalase activity in catalase‐peroxidases [PDF]
The EMBO Reports, 2005 The catalase reaction of catalase-peroxidases involves catalase-specific features built into a peroxidase core. An arginine, 20 A from the active-site heme, acts as a molecular switch moving between two conformations, one that activates heme oxidation and one that activates oxoferryl heme reduction by H(2)O(2), facilitating the catalatic pathway in a ...
Carpena, Xavi +7 more
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