Results 111 to 120 of about 70,974 (235)

Diffusion of peroxynitrite, its precursors, and derived reactive species, and the effect of cell membranes

open access: yesRedox Biochemistry and Chemistry
Peroxynitrite is a powerful oxidant formed in vivo in sites where superoxide and nitric oxide coincide. Peroxynitrite is cytotoxic through oxidative modification of target biomolecules that can occur by direct or indirect reactions.
Matías N. Möller, Ana Denicola
doaj   +1 more source

Nitrosative stress in human spermatozoa causes cell death characterized by induction of mitochondrial permeability transition-driven necrosis

open access: yesAsian Journal of Andrology, 2018
Peroxynitrite is a highly reactive nitrogen species and a potent inducer of apoptosis and necrosis in somatic cells. Peroxynitrite-induced nitrosative stress has emerged as a major cause of impaired sperm function; however, its ability to trigger cell ...
Pamela Uribe   +8 more
doaj   +1 more source

Influence of hyperhomocysteinemia on the cellular redox state - Impact on homocysteine-induced endothelial dysfunction [PDF]

open access: yes, 2003
Hyperhomocysteinemia is an independent risk factor for the development of atherosclerosis. An increasing body of evidence has implicated oxidative stress as being contributory to homocysteines deleterious effects on the vasculature.
Adachi T   +29 more
core   +1 more source

Renal‐vascular axis: unmasking its role in vascular endothelial growth factor‐inhibitor vascular toxicity in cancer patients

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Vascular toxicity is a growing concern in cancer patients receiving vascular endothelial growth factor inhibitor (VEGFi) therapy, posing a significant threat to patient prognosis. While the primary mechanism of VEGFi‐induced vascular toxicity is linked to redox‐sensitive reactions that disrupt vascular tone, leading to hypertension and ...
Grace Whelan, Karla B. Neves
wiley   +1 more source

The Ubiquity of the Reaction of the Labile Iron Pool That Attenuates Peroxynitrite-Dependent Oxidation Intracellularly

open access: yesBiomolecules
Although the labile iron pool (LIP) biochemical identity remains a topic of debate, it serves as a universal homeostatically regulated and essential cellular iron source.
Gabriel Simonetti da Silva   +2 more
doaj   +1 more source

Modulation of Myocardial Contraction by Peroxynitrite

open access: yesFrontiers in Physiology, 2012
Peroxynitrite is a potent oxidant that is quickly emerging as a crucial modulator of myocardial function. This review will focus on the regulation of myocardial contraction by peroxynitrite during health and disease, with a specific emphasis on ...
Mark eKohr   +3 more
doaj   +1 more source

Sildenafil Citrate-Restored eNOS and PDE5 Regulation in Sickle Cell Mouse Penis Prevents Priapism Via Control of Oxidative/Nitrosative Stress [PDF]

open access: yes, 2013
Sildenafil citrate revolutionized the practice of sexual medicine upon its federal regulatory agency approval approximately 15 years ago as the prototypical phosphodiesterase type 5 inhibitor indicated for the treatment of male erectile dysfunction.
Berkowitz, DE   +5 more
core   +3 more sources

Photodynamic inactivation increases cell death rate on persistent Staphylococcus aureus

open access: yesPhotochemistry and Photobiology, EarlyView.
Persistent bacteria have the ability to survive extended periods of antibiotic stress by entering a metabolically dormant state. This study investigated persistence formation in two S. aureus strains and evaluated the effects of PDI using curcumin. Post‐PDI time‐kill assays conducted after metabolic recovery showed a higher rate of bacterial death ...
Maria Vitória Silva Pereira   +3 more
wiley   +1 more source

Identification and quantification of flavonoids in Carica papaya leaf and peroxynitrite-scavenging activity

open access: yesAsian Pacific Journal of Tropical Biomedicine, 2017
Objective: To characterize the types, contents, and peroxynitrite-scavenging activities of flavonoids in the leaf of Carica papaya (C. papaya). Methods: Chromatographic and spectroscopic techniques along with high performance liquid chromatography ...
Agung Nugroho   +3 more
doaj   +1 more source

Molecular imaging of oxidative stress using an LED-based photoacoustic imaging system. [PDF]

open access: yes, 2019
LED-based photoacoustic imaging has practical value in that it is affordable and rugged; however, this technology has largely been confined to anatomic imaging with limited applications into functional or molecular imaging.
Hariri, Ali   +5 more
core  

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