Results 41 to 50 of about 526,315 (198)

Thylakoid Rhodanese-like Protein–Ferredoxin:NADP+ Oxidoreductase Interaction Is Integrated into Plant Redox Homeostasis System

open access: yesAntioxidants, 2023
In vascular plants, the final photosynthetic electron transfer from ferredoxin (Fd) to NADP+ is catalyzed by the flavoenzyme ferredoxin:NADP+ oxidoreductase (FNR).
Lea Vojta   +3 more
doaj   +1 more source

Superoxide Dismutases in Pancreatic Cancer

open access: yesAntioxidants, 2017
The incidence of pancreatic cancer is increasing as the population ages but treatment advancements continue to lag far behind. The majority of pancreatic cancer patients have a K-ras oncogene mutation causing a shift in the redox state of the cell ...
Justin G. Wilkes   +2 more
doaj   +1 more source

Composto homeopático reduz a liberação de ânion superóxido pelas células mononucleares de ema (Rhea americana)

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2011
The action of the "Stress Factor Ostrich (Arenales - Fauna and Flora)" was tested in the release of superoxide anion by cells in the peripheral blood of rhea (Rhea americana).
W.R Bertoldo   +3 more
doaj   +1 more source

Vasomotor Regulation of Coronary Microcirculation by Oxidative Stress: Role of Arginase

open access: yesFrontiers in Immunology, 2013
Overproduction of reactive oxygen species, i.e., oxidative stress, is associated with the activation of redox signaling pathways linking to inflammatory insults and cardiovascular diseases by impairing endothelial function and consequently blood flow ...
Lih eKuo   +4 more
doaj   +1 more source

Arginase: the emerging therapeutic target for vascular oxidative stress and inflammation

open access: yesFrontiers in Immunology, 2013
Oxidative stress and inflammation in the vascular wall are essential mechanisms of atherosclerosis and vascular dysfunctions associated with risk factors such as metabolic diseases, aging, hypertension, etc.
Zhihong eYang, Xiu-Fen eMing
doaj   +1 more source

Species-level variability in extracellular production rates of reactive oxygen species by diatoms

open access: yesFrontiers in Chemistry, 2016
Biological production and decay of the reactive oxygen species (ROS) hydrogen peroxide (H2O2) and superoxide (O2-) likely have significant effects on the cycling of trace metals and carbon in marine systems. In this study, extracellular production rates
Robin Julie Schneider   +5 more
doaj   +1 more source

Role of nitric oxide and superoxide in Giardia lamblia killing

open access: yesBrazilian Journal of Medical and Biological Research, 1997
Giardia lamblia trophozoites were incubated for 2 h with activated murine macrophages, nitric oxide (NO) donors or a superoxide anion generator (20 mU/ml xanthine oxidase plus 1 mM xanthine). Activated macrophages were cytotoxic to Giardia trophozoites (~
P.D. Fernandes, J. Assreuy
doaj   +1 more source

Anti-Tumour Promoting Activity and Antioxidant Properties of Girinimbine Isolated from the Stem Bark of<em> Murraya koenigii </em>S.

open access: yesMolecules, 2012
Girinimbine, a carbazole alkaloid isolated from the stem bark of <em>Murraya koenigii </em>was tested for the<em> in vitro</em> anti-tumour promoting and antioxidant activities.
Yih Yih Kok   +6 more
doaj   +1 more source

Potential Modulation of Vascular Function by Nitric Oxide and Reactive Oxygen Species Released From Erythrocytes

open access: yesFrontiers in Physiology, 2018
The primary role for erythrocytes is oxygen transport that requires the reversible binding of oxygen to hemoglobin. There are, however, secondary reactions whereby the erythrocyte can generate reactive oxygen species (ROS) and nitric oxide (NO). ROS such
Joseph M. Rifkind   +6 more
doaj   +1 more source

Action of the 4-Nitro-2-phenoximethanesulphonanilide (Nimesulide) on neutrophil chemotaxis and superoxide production

open access: yesSão Paulo Medical Journal
4-nitro-2-phenoximethanesulphonanilide (nimesulide) is a nonsteroidal anti-inflammatory agent that has been employed in the treatment of inflammatory diseases because of its specific actions on the inflammatory response mechanisms caused by injury.
Susana Beatriz Veríssimo de Mello   +2 more
doaj   +1 more source

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