Results 21 to 30 of about 37,194 (217)
The evolutionary origins of peroxynitrite signalling [PDF]
Biochemical and Biophysical Research Communications, 2021 Peroxynitrite is a reactive intermediate formed in vivo through uncatalysed reaction of superoxide and nitric oxide radicals. Despite significant interest in detecting peroxynitrite in vivo and understanding its production, little attention has been given to the evolutionary origins of peroxynitrite signalling.
Jennifer A. Miles +7 more
openaire +3 more sources
Superoxide and peroxynitrite inatherosclerosis. [PDF]
Proceedings of the National Academy of Sciences, 1994 The role of reactive oxygen species in the vascular pathology associated with atherosclerosis was examined by testing the hypothesis that impaired vascular reactivity results from the reaction of nitric oxide (.NO) with superoxide (O2-), yielding the oxidant peroxynitrite (ONOO-).
C R, White +9 more
openaire +2 more sources
Reaction of Astaxanthin with Peroxynitrite [PDF]
Bioscience, Biotechnology, and Biochemistry, 2008 The in vitro reactivities of astaxanthin toward peroxynitrite were investigated and the reaction products after scavenging with peroxynitrite were analyzed in order to determine the complete mechanism of this reaction. A series of carotenoids, 13-apo-astaxanthinone (1), 12'-apo-15'-nitroastaxanthinal (2), 12'-apo-astaxanthinal (3), 10'-apo ...
HAYAKAWA, Tsutomu +4 more
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The role of the host—Neutrophil biology
Periodontology 2000, EarlyView., 2023 Abstract Neutrophilic polymorphonuclear leukocytes (neutrophils) are myeloid cells packed with lysosomal granules (hence also called granulocytes) that contain a formidable antimicrobial arsenal. They are terminally differentiated cells that play a critical role in acute and chronic inflammation, as well as in the resolution of inflammation and wound ...
Iain L. C. Chapple +4 more
wiley +1 more source
Potential Benefits of Peroxynitrite [PDF]
The Open Pharmacology Journal, 2008 Peroxynitrite (PN) is generated by the reaction of nitric oxide (NO) and superoxide in one of the most rapid reactions in biology. Studies have reported that PN is a cytotoxic molecule that contributes to vascular injury in a number of disease states. However, it has become apparent that PN has beneficial effects including vasodilation, inhibition of ...
Bobby D, Nossaman, Philip J, Kadowitz
openaire +2 more sources
Pteridines, 1999 The effect of pterin-6-aldehyde (P6A), xanthine oxidase inhibitor and superoxide scavenger, on the production of nitrotyrosine as a footprint of tyrosine nitration by peroxynitrite, was compared with that of uric acid, a peroxynitrite scavenger.
Mori Hiroko +5 more
doaj +1 more source
Reaction of Retinol with Peroxynitrite
Bioscience, Biotechnology, and Biochemistry, 2007 The reactivity of retinol with peroxynitrite, which is a strong oxidant and has been reported to induce several biological damages, was investigated. 13-cis-14-nitroretinol (1), 13-trans-14-nitroretinol (2), 13-apo-beta-carotenone (3), retinal (4), 11,14-epoxyretinol (5), and 11,15-epoxyretinol (6) were identified as reaction products of retinol with ...
SUZUKI, Rie +6 more
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Cyclic Hydroxylamines as Monitors of Peroxynitrite and Superoxide-Revisited
Antioxidants, 2021 There is a considerable need for methods that allow quantitative determination in vitro and in vivo of transient oxidative species such as peroxynitrite (ONOOH/ONOO−) and superoxide (HO2•/O2•−).
Uri Samuni, Amram Samuni, Sara Goldstein
doaj +1 more source
Degradation of Hyaluronan by Peroxynitrite
Archives of Biochemistry and Biophysics, 1997 Treatment of high-molecular-weight hyaluronan (HA) with peroxynitrite at neutral pH (ONOO-/ONOOH) results in altered mobility on agarose gel electrophoresis, as well as reduced limiting viscosity number. Both effects are consistent with a reduction in HA molecular weight.
M, Li +3 more
openaire +2 more sources
Advanced Science, EarlyView.CeO2‐x/Pt single‐atom nano‐island is constructed via low‐temperature reduction, featuring abundant oxygen vacancies and an island–sea structure. It delivers outstanding multi‐enzyme‐mimetic activity and ROS‐scavenging efficiency. Density functional theory reveals optimized electronic structures and reaction pathways.
Yang Zhu +12 more
wiley +1 more source