Results 51 to 60 of about 640,255 (384)

superoxide dismutase

open access: yesCatalysis from A to Z, 2020
Proteins that protect cells against elevated levels of superoxide a reactive oxygen species. These antioxidant enzymes catalyze the formation of molecular oxygen and hydrogen peroxide from the superoxide anion.
P. Sears
semanticscholar   +1 more source

Selected reactive oxygen species and antioxidant enzymes in common bean after Pseudomonas syringae pv. phaseolicola and Botrytis cinerea infection [PDF]

open access: yes, 2014
Phaseolus vulgaris cv. Korona plants were inoculated with the bacteria Pseudomonas syringae pv. phaseolicola (Psp), necrotrophic fungus Botrytis cinerea (Bc) or with both pathogens sequentially.
A Encina   +56 more
core   +2 more sources

Oxidative stress parameters in plasma of Huntington's disease patients, asymptomatic Huntington's disease gene carriers and healthy subjects : a cross-sectional study [PDF]

open access: yes, 2007
BACKGROUND : Animal data and postmortem studies suggest a role of oxidative stress in the Huntington's disease (HD), but in vivo human studies have been scarce.
Babić, Tomislav   +5 more
core   +1 more source

Endothelin-1 in paraventricular nucleus modulates cardiac sympathetic afferent reflex and sympathetic activity in rats. [PDF]

open access: yesPLoS ONE, 2012
Cardiac sympathetic afferent reflex (CSAR) is a positive-feedback, sympathoexcitatory reflex. Paraventricular nucleus (PVN) is an important component of the central neurocircuitry of the CSAR. The present study is designed to determine whether endothelin-
Ai-Dong Chen   +6 more
doaj   +1 more source

Oxidative stress and disruption of the antioxidant defense system as triggers of diseases

open access: yesRegulatory Mechanisms in Biosystems, 2023
Oxidative stress is a state when the content of free radicals in a living organism is excessive. Molecules of free radical nature start a chain reaction that disrupts the integrity of cells, leading to their damage or death.
O. D. Skoryk, M. V. Horila
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

Detection of reactive oxygen and nitrogen species by electron paramagnetic resonance (EPR) technique [PDF]

open access: yes, 2017
During the last decade there has been growing interest in physical-chemical oxidation processes and the behavior of free radicals in living systems. Radicals are known as intermediate species in a variety of biochemical reactions.
Gurer-Orhan, H., Saso, L., Suzen, S.
core   +2 more sources

The Regulation of Trace Metal Elements in Cancer Ferroptosis

open access: yesAdvanced Biology, EarlyView.
The induction of ferroptosis inhibits tumor growth, enhances anticancer efficacy, and overcomes drug resistance. Recent evidence shows nonferrous metal elements play a role in ferroptosis. This review focuses on how trace metals regulate ferroptosis processes like iron accumulation, lipid peroxidation, and antioxidant defense.
Xiaoyan Wang   +5 more
wiley   +1 more source

Reactions of Phenolic Antioxidants with Electrogenerated Superoxide Anion Radical and Their Analytical Application [PDF]

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2015
Parameters of oxygen electroreduction on glassy carbon electrode modified with multi-walled carbon nanotubes were found. Increase in the oxygen reduction currents and system reversibility was observed compared to unmodified electrode, which allows to use
Ziyatdinova G.K.   +2 more
doaj  

A novel flow cytometry assay using dihydroethidium as redox-sensitive probe reveals NADPH oxidase-dependent generation of superoxide anion in human platelets exposed to amyloid peptide β

open access: yesPlatelets, 2019
Reactive oxygen species (ROS) generation is critical in the regulation of platelets, which has important implications in the modulation of hemostasis and thrombosis. Nonetheless, despite several assays have been described and successfully utilized in the
Aisha Alsheikh Abubaker   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy