Results 21 to 30 of about 712,690 (299)

Reactive Oxygen Species (ROS): A Review [PDF]

open access: yesDental Journal of Advance Studies, 2013
AbstractIn the late 1950's free radicals and antioxidants were almost unheard of in the clinical and biological sciences but chemists had known about them for years in the context of radiation, polymer and combustion technology. Daniel Gilbert, Rebeca Gerschman and their colleagues related the toxic effects of elevated oxygen levels on aerobes to those
Ram Rattan Gupta   +2 more
openaire   +1 more source

Hexavalent-Chromium-Induced Oxidative Stress and the Protective Role of Antioxidants against Cellular Toxicity

open access: yesAntioxidants, 2022
Hexavalent chromium is a highly soluble environmental contaminant. It is a widespread anthropogenic chromium species that is 100 times more toxic than trivalent chromium.
Veer Singh   +11 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

Dietary Antioxidant An Indispensible Nutrient

open access: yesJournal of Bahria University Medical and Dental College, 2019
Free radicals prevail as atoms, molecules or unpaired electrons being extremely reactive as well as unstable1. They can lead to chemical reactions alongside different molecules.
Shizma Junejo   +2 more
doaj   +1 more source

Highly efficient optogenetic cell ablation in C. elegans using membrane-targeted miniSOG. [PDF]

open access: yes, 2016
The genetically encoded photosensitizer miniSOG (mini Singlet Oxygen Generator) can be used to kill cells in C. elegans. miniSOG generates the reactive oxygen species (ROS) singlet oxygen after illumination with blue light.
Chisholm, Andrew D, Xu, Suhong
core   +1 more source

What Did We Accomplish in Fighting Radical Species in Human Health?

open access: yesAntioxidants, 2021
Maintaining the physiological level of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in the body is highly important in the fight against radical species in the context of human health [...]
Rachid Skouta
doaj   +1 more source

Reactive Oxygen Species (ROS), Intimal Thickening, and Subclinical Atherosclerotic Disease

open access: yesFrontiers in Cardiovascular Medicine, 2019
Arteriosclerosis causes significant morbidity and mortality worldwide. Central to this process is the development of subclinical non-atherosclerotic intimal lesions before the appearance of pathologic intimal thickening and advanced atherosclerotic ...
Denise Burtenshaw   +4 more
doaj   +1 more source

Glutathione Metabolism in Renal Cell Carcinoma Progression and Implications for Therapies [PDF]

open access: yes, 2019
A significantly increased level of the reactive oxygen species (ROS) scavenger glutathione (GSH) has been identified as a hallmark of renal cell carcinoma (RCC). The proposed mechanism for increased GSH levels is to counteract damaging ROS to sustain the
Meierhofer, David, Xiao, Yi
core   +2 more sources

Reactive Oxygen Species (ROS) and Nucleic Acid Modifications during Seed Dormancy

open access: yesPlants, 2020
The seed is the propagule of higher plants and allows its dissemination and the survival of the species. Seed dormancy prevents premature germination under favourable conditions.
Kai Katsuya-Gaviria   +3 more
doaj   +1 more source

Reactive oxygen species (ROS): Beneficial companions of plants’ developmental processes

open access: yesFrontiers in Plant Science, 2016
Reactive oxygen species (ROS) are continuously generated inevitably in the redox reactions of plants, including respiration and photosynthesis. In earlier studies, ROS were considered as toxic by-products of aerobic pathways of the metabolism.
Rachana Singh   +7 more
doaj   +1 more source

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