Nitrogen Oxides

Publication Title: 
Journal of Neurochemistry

The search for effective treatments that prevent oxidative stress associated with premature ageing and neurodegenerative diseases is an important area of neurochemical research. As age- and disease-related oxidative stress is frequently associated with mitochondrial dysfunction, amphiphilic antioxidant agents of high stability and selectivity that target these organelles can provide on-site protection.

Author(s): 
Poeggeler, Burkhard
Durand, GrÈgory
Polidori, Ange
Pappolla, Miguel A.
Vega-Naredo, Ignacio
Coto-Montes, Ana
Bˆker, Jutta
Hardeland, R¸diger
Pucci, Bernard
Publication Title: 
Radiation Research

FancD2 plays a central role in the human Fanconi anemia DNA damage response (DDR) pathway. Fancd2(-/-) mice exhibit many features of human Fanconi anemia including cellular DNA repair defects. Whether the DNA repair defect in Fancd2(-/-) mice results in radiologic changes in all cell lineages is unknown. We measured stress of hematopoiesis in long-term marrow cultures and radiosensitivity in clonogenic survival curves, as well as comet tail intensity, total antioxidant stores and radiation-induced gene expression in hematopoietic progenitor compared to bone marrow stromal cell lines.

Author(s): 
Berhane, Hebist
Epperly, Michael W.
Goff, Julie
Kalash, Ronny
Cao, Shaonan
Franicola, Darcy
Zhang, Xichen
Shields, Donna
Houghton, Frank
Wang, Hong
Wipf, Peter
Parmar, Kalindi
Greenberger, Joel S.
Publication Title: 
The Journal of Antimicrobial Chemotherapy

OBJECTIVES: Indolone-N-oxides are characterized by the presence of a highly reactive pharmacophore, the nitrone moiety (C=N(+)-O(-)), which undergoes oxidation-reduction reactions.

Author(s): 
Tahar, Rachida
Vivas, Livia
Basco, Leonardo
Thompson, Eloise
Ibrahim, Hany
Boyer, Jérémie
Nepveu, Françoise
Publication Title: 
Nutrition Journal

BACKGROUND: The purpose of this investigation was to determine the effects of a dietary supplement (Ambrotose AO®) on resting and exercise-induced blood antioxidant capacity and oxidative stress in exercise-trained and untrained men and women. METHODS: 25 individuals (7 trained and 5 untrained men; 7 trained and 6 untrained women) received Ambrotose AO® (4 capsules per day = 2 grams per day) or a placebo for 3 weeks in a random order, double blind cross-over design (with a 3 week washout period).

Author(s): 
Bloomer, Richard J.
Canale, Robert E.
Blankenship, Megan M.
Fisher-Wellman, Kelsey H.
Publication Title: 
Nutrition Journal

BACKGROUND: The purpose of this investigation was to determine the effects of a dietary supplement (Ambrotose AO®) on resting and exercise-induced blood antioxidant capacity and oxidative stress in exercise-trained and untrained men and women. METHODS: 25 individuals (7 trained and 5 untrained men; 7 trained and 6 untrained women) received Ambrotose AO® (4 capsules per day = 2 grams per day) or a placebo for 3 weeks in a random order, double blind cross-over design (with a 3 week washout period).

Author(s): 
Bloomer, Richard J.
Canale, Robert E.
Blankenship, Megan M.
Fisher-Wellman, Kelsey H.
Publication Title: 
Neuropharmacology

Nitric oxide modulates pain development. However, there is no evidence on the effect of nitroxyl (HNO/NO⁻) in nociception. Therefore, we addressed whether nitroxyl inhibits inflammatory hyperalgesia and its mechanism using the nitroxyl donor Angeli's salt (AS; Na₂N₂O₃). Mechanical hyperalgesia was evaluated using a modified Randall and Selitto method in rats, cytokine production by ELISA and nitroxyl was determined by confocal microscopy in DAF (a cell permeable reagent that is converted into a fluorescent molecule by nitrogen oxides)-treated dorsal root ganglia neurons in culture.

Author(s): 
Zarpelon, Ana C.
Souza, Guilherme R.
Cunha, Thiago M.
Schivo, Ieda R. S.
Marchesi, Mario
Casagrande, Rubia
Pinge-Filho, Phileno
Cunha, Fernando Q.
Ferreira, Sergio H.
Miranda, Katrina M.
Verri, Waldiceu A.
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