Results 21 to 30 of about 2,172 (216)
FEBS Letters, EarlyView.Although too much iron in the brain promotes neurodegeneration, iron ion chelators have had mixed effects in clinical trials. This review explains why; some chelators do not render the iron redox‐inactive (e.g., L1) whereas others do (e.g., desferrioxamine).
Barry Halliwell
wiley +1 more source
Journal of Analytical Methods in Chemistry, 2012 This paper focuses on providing new results relating to the impacts of Diurnal variation, Vertical distribution, and Emission source on sulfur K-edge XANES spectrum of aerosol samples.
Siwatt Pongpiachan +6 more
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A yeast model of 5‐oxoproline accumulation reveals a general toleration to 5‐oxoproline
FEBS Open Bio, EarlyView.Using a yeast model, we show that even high accumulation of 5‐oxoproline causes only mild cellular stress and does not trigger oxidative stress. Instead, cells adapt by activating efflux pumps and diverse protective pathways, suggesting that previously proposed harmful effects of 5‐oxoproline may arise from indirect metabolic imbalances rather than the
Pratiksha Dubey +4 more
wiley +1 more source
YeeE-like bacterial SoxT proteins mediate sulfur import for oxidation and signal transduction
Communications BiologyMany sulfur-oxidizing prokaryotes oxidize sulfur compounds through a combination of initial extracytoplasmic and downstream cytoplasmic reactions. Facultative sulfur oxidizers adjust transcription to sulfur availability.
Jingjing Li +7 more
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mBioCertain members of the family Sulfolobaceae represent the only archaea known to oxidize elemental sulfur, and their evolutionary history provides a framework to understand the development of chemolithotrophic growth by sulfur oxidation. Here, we evaluate
Daniel J. Willard +4 more
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Assessment of the stoichiometry and efficiency of CO2 fixation coupled to reduced sulfur oxidation
Frontiers in Microbiology, 2015 Chemolithoautotrophic sulfur oxidizing bacteria (SOB) couple the oxidation of reduced sulfur compounds to the production of biomass. Their role in the cycling of carbon, sulfur, oxygen and nitrogen is, however, difficult to quantify due to the complexity
Judith M Klatt +2 more
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The oxidation of sulfur by microorganisms [PDF]
Experimental Biology and Medicine, 1920 Two groups of phenomena are to be considered in the study of the sulfur cycle: (1) the reduction phenomena and (2) the oxidation phenomena. The first result in the production of hydrogen sulfide and the second in the oxidation of H2S to S and of the latter to H2SO4. Both groups of phenomena result from activities of microorganisms.
Waksman, S. A., Joffe, J. S.
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FEBS Open Bio, EarlyView.Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata +13 more
wiley +1 more source
International Journal of Electrochemical Science, 2015 The electro-oxidation processes of sulfide at Ti/RuO2 anode in alkaline solution are investigated. The experiment results indicated that the electro-oxidation process of sulfide is irreversible, and the control step is mass diffusion.
Longyao Wang +3 more
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Effects of organic sulfur on oxidation spontaneous combustion characteristics of coking coal
Energy Exploration & Exploitation, 2022 Research on the spontaneous combustion of coal caused by sulfur has always been focused on pyrite in coal but has rarely considered the influence of organic sulfur.
Fei Gao +6 more
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