Results 31 to 40 of about 966,330 (294)

Proteomic analysis of hydroxyl radical-induced resuscitation of hypoxia-induced dormant mycobacterial cells

open access: yesInternational Journal of Mycobacteriology, 2018
Background: The genus Mycobacterium has an ability to persist in hostile environments for years before its reactivation in favorable conditions. The major bottleneck in decades of mycobacterial research is a poor understanding of molecular mechanism ...
Abhishek Mishra
doaj   +1 more source

Mitochondrial toxins potentiate hydroxyl radical production in rat striatum during carbon monoxide poisoning

open access: yesJournal of Pharmacological Sciences, 2021
Hydroxyl radical (•OH) production in the rat striatum during carbon monoxide (CO) poisoning, which inhibits complex IV, was enhanced synergistically by malonate, a mitochondrial complex II inhibitor, but not N-methyl-4-phenylpyridinium or NaCN, complex I
Fumi Kuriiwa   +3 more
doaj   +1 more source

The influence of amino and hydroxyl of chitosan on hydroxyl radical scavenging activity

open access: yes, 2009
In order to determine the effect of the amido and hydroxyl of chitosan on antioxidant activity, a series of N-deacetylated chitosan with a degree of deacetylation (D.D.) ranging from 45% to 95% were prepared using region selective N-acetylation of ...
Xue,Qinzhao   +11 more
core   +1 more source

Free radical degradation in aqueous solution by blowing hydrogen and carbon dioxide nanobubbles

open access: yesScientific Reports, 2021
The main findings are the hydroxyl radical scavenging and the superoxide anion diminishing by mixing the carbon dioxide (CO2) nanobubbles after hydrogen nanobubble blowing in water and alcohol aqueous solution.
Toyohisa Fujita   +8 more
doaj   +1 more source

Separation and antioxidant activities of new acetylated EGCG compounds

open access: yesScientific Reports, 2023
Acetylation could improve the bioavailability of (-)-Epigallocatechin-3-Gallate (EGCG), but the relationship of substitution degree and antioxidant capacity of acetylated EGCG was unclear.
Jianyong Zhang   +6 more
doaj   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

Molecular structural mechanism of coal photo-oxidative hydroxyl radical generation regulated by pre-oxidation temperature

open access: yesMeitan xuebao
During coal storage and open-air stockpiling, photooxidation is the key precursor step triggering spontaneous combustion. However, the molecular structural regulation mechanism of the pre-oxidizing temperature on the generation of hydroxyl radicals—the ...
Yanni ZHANG   +4 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Universality of hydroxyl radical generation in irradiated nanoenhancer suspensions: Vital role of concentration

open access: yesAIP Advances
Concentration plays an essential role in generating hydroxyl radicals in irradiated nanoenhancer suspensions. In this paper, we used coumarin-3-carboxylic acid as a hydroxyl radical-specific probe to investigate the hydroxyl radical production of ...
Changfeng Yang   +5 more
doaj   +1 more source

Hydroxyl radical reactivity at the air-ice interface [PDF]

open access: yesAtmospheric Chemistry and Physics, 2010
Hydroxyl radicals are important oxidants in the atmosphere and in natural waters. They are also expected to be important in snow and ice, but their reactivity has not been widely studied in frozen aqueous solution. We have developed a spectroscopic probe
T. F. Kahan, R. Zhao, D. J. Donaldson
doaj  

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