Results 31 to 40 of about 10,242 (303)

Interrelated influence of superoxides and free fatty acids over mitochondrial uncoupling in skeletal muscle

open access: yes, 2008
Mitochondrial uncoupling protein 3 (UCP3)-mediated uncoupling has been postulated to depend on several factors, including superoxides, free fatty acids (FFAs), and fatty acid hydroperoxides and/or their derivatives.
DE LANGE, Pieter   +6 more
core   +2 more sources

Isorhamnetin Influences the Viability, Superoxide Production and Interleukin-8 Biosynthesis of Human Colorectal Adenocarcinoma HT-29 Cells In Vitro

open access: yesLife, 2023
Isorhamnetin has gained research interest for its anti-inflammatory, anti-proliferative and chemoprotective properties. In this study, human colon adenocarcinoma cells were cultured in the presence or absence of different isorhamnetin concentrations (5 ...
Hana Greifová   +9 more
doaj   +1 more source

Photochemical reactivity of zinc tetraphenylporphyrin induced by nonstoichiometric CdS nanoparticles in 2-propanol

open access: yesInternational Journal of Photoenergy, 2001
The photoreactivity of zinc tetraphenylporphyrin (ZnTPP) in the presence of photoexcited CdS nanoparticles and molecular oxygen in 2-propanol has been revisited.
Alex V. Isarov, John Chrysochoos
doaj   +1 more source

Key problems of the four-dimensional Earth system

open access: yesMatter and Radiation at Extremes, 2020
Compelling evidence indicates that the solid Earth consists of two physicochemically distinct zones separated radially in the middle of the lower mantle at ∼1800 km depth.
Ho-kwang Mao, Wendy L. Mao
doaj   +1 more source

Nickel-gallate metal–organic framework as an efficient antimicrobial and anticancer agent: in vitro study

open access: yesCancer Nanotechnology, 2023
Gallic acid is a natural antioxidant present in many plants such as tea, sumac, gallnut and other plants. This naturally occurring gallic acid is known to exhibit auto-oxidation under certain conditions, generating several reactive oxygen species (ROS ...
Ahmed. A. G. El-Shahawy   +4 more
doaj   +1 more source

Presenilin mutations deregulate mitochondrial Ca2+ homeostasis and metabolic activity causing neurodegeneration in Caenorhabditis elegans

open access: yeseLife, 2018
Mitochondrial dysfunction and subsequent metabolic deregulation is observed in neurodegenerative diseases and aging. Mutations in the presenilin (PSEN) encoding genes (PSEN1 and PSEN2) cause most cases of familial Alzheimer’s disease (AD); however, the ...
Shaarika Sarasija   +5 more
doaj   +1 more source

Arginine-specific gingipains (RgpA/RgpB) knockdown modulates neutrophil machinery

open access: yesJournal of Oral Microbiology
Background Gingipains are important virulence factors present in Porphyromonas gingivalis. Arginine-specific gingipains (RgpA and RgpB) are critically associated with increased proteolytic activity and immune system dysfunction, including neutrophilic ...
Vanessa Tubero Euzebio Alves   +6 more
doaj   +1 more source

Copper- and Zinc-containing Superoxide Dismutase Can Act as a Superoxide Reductase and a Superoxide Oxidase [PDF]

open access: yesJournal of Biological Chemistry, 2000
The copper- and zinc-containing superoxide dismutase can catalyze the oxidation of ferrocyanide by O(2) as well as the reduction of ferricyanide by O(2). Thus, it can act as a superoxide dismutase (SOD), a superoxide reductase (SOR), and a superoxide oxidase (SOO).
S I, Liochev, I, Fridovich
openaire   +2 more sources

Nitrate Increases Aluminum Toxicity and Accumulation in Root of Wheat

open access: yesAgriculture, 2022
Aluminum (Al) toxicity inhibits root growth, while nitrogen is an essential nutrient for plant growth and development. To explore the effects of nitrate (N) on Al toxicity and accumulation in root of wheat, two wheat genotypes, Shengxuan 6 hao (SX6, Al ...
Yan Ma   +3 more
doaj   +1 more source

Effects of TiO2 surface modifications on photocatalytic oxidation of arsenite: The role of superoxides

open access: yes, 2019
Using TiO2 photocatalyst, arsenite [As(III)] can be rapidly oxidized to arsenate [As(V)], which is less toxic and less mobile in the aquatic environment.
Choi, W, Ryu, J
core   +1 more source

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