Results 21 to 30 of about 548,863 (305)

Functional indicators of response mechanisms to nitrogen deposition, ozone, and their interaction in two Mediterranean tree species [PDF]

, 2017
The effects of nitrogen (N) deposition, tropospheric ozone (O3) and their interaction were investigated in two Mediterranean tree species, Fraxinus ornus L. (deciduous) and Quercus ilex L.
Basile, Adriana, Fusaro, Lina, Karam, Elham Asadi, Manes, Fausto, Maresca, Viviana, Palma, Adriano, Salvatori, Elisabetta   +6 more
core   +2 more sources

Reaction Cycles of Halogen Species in the Immune Defense: Implications for Human Health and Diseases and the Pathology and Treatment of COVID-19

Cells, 2020
There is no vaccine or specific antiviral treatment for COVID-19, which is causing a global pandemic. One current focus is drug repurposing research, but those drugs have limited therapeutic efficacies and known adverse effects. The pathology of COVID-19
Qing-Bin Lu
doaj   +1 more source

Evidence for detrimental cross interactions between reactive oxygen and nitrogen species in Leber's hereditary optic neuropathy cells [PDF]

, 2015
Here we have collected evidence suggesting that chronic changes in the NO homeostasis and the rise of reactive oxygen species bioavailability can contribute to cell dysfunction in Leber’s hereditary optic neuropathy (LHON) patients.We report that ...
Arese, Marzia, Buscarinu, Maria Chiara, Chessa, Luciana, Coarelli, Giulia, Falabella, Micol, Forte, Elena, Giuffre', Alessandro, Magnifico, MARIA CHIARA, Mechelli, Rosella, Radić, Kristina, Salvetti, Marco, Santini, Paolo, Sarti, Paolo   +12 more
core   +4 more sources

Decadal changes in summertime reactive oxidized nitrogen and surface ozone over the Southeast United States [PDF]

, 2018
Widespread efforts to abate ozone (O3) smog have significantly reduced emissions of nitrogen oxides (NOx) over the past 2 decades in the Southeast US, a place heavily influenced by both anthropogenic and biogenic emissions.
Cohen, Ronald C., Crounse, John D., Dibb, Jack E., Fiore, Arlene M., Fried, Alan, Hanisco, Thomas F., Horowitz, Larry W., Lee, Ben H., Li, Jingyi, Lopez-Hilfiker, Felipe D., Mao, Jingqiu, Neuman, J. Andrew, Nowak, John B., Paulot, Fabien, Peischl, Jeff, Pollack, Ilana B., Robert, James M., Ryerson, Thomas B., Singh, Hanwant B., Teng, Alex P., Thornton, Joel A., Veres, Patrick, Wennberg, Paul O., Wolfe, Glenn M.   +23 more
core   +4 more sources

Biologically Relevant Small Radicals

CHIMIA, 2008
Biologically relevant small radicals are at the focus of the working group 4 (WG4) of the COST Action CM0603 (Free Radicals in Chemical Biology, CHEMBIORADICAL). This article surveys the areas of research being undertaken by the partners in WG4.
Georg Bauer, Gabor Speier, Gabor Merenyi, Jozsef Kaizer, Sara Goldstein, Bernard T. Golding, Georg Gescheidt, Lidia Gebicka, Jerzy L. Gebicki, Chryssostomos Chatgilialoglu, Peter Wardman   +10 more
doaj   +1 more source

Juggling with reactive oxygen species and antioxidant defense system – A coping mechanism under salt stress

Plant Stress, 2022
Even under optimal conditions many metabolic processes produce ROS like superoxide anion (O2.-), hydrogen peroxide (H2O2) and hydroxyl radicals (OH⋅), particularly in chloroplast and mitochondria.
Divya Singh
doaj   +1 more source

Reactive nitrogen budget during the NASA SONEX Mission [PDF]

, 1999
The SASS Ozone and Nitrogen Oxides Experiment (SONEX) over the North Atlantic during October/November 1997 offered an excellent opportunity to examine the budget of reactive nitrogen in the upper troposphere (8–12 km altitude).
Atlas, Elliot, Ballenthin, J O, Blake, D R, Blake, N J, Dibb, Jack E., Flocke, F, Fukui, F, Hunton, D E, Jacob, D J, Jaegle, L, Koike, M, Kondo, Y, Meads, R F, Miller, T M, Salas, L, Scheuer, Eric, Singh, H B, Talbot, R., Viggiano, A A   +18 more
core   +2 more sources

Teaching the basics of redox biology to medical and graduate students: Oxidants, antioxidants and disease mechanisms

Redox Biology, 2013
This article provides a succinct but limited overview of the protective and deleterious effects of reactive oxygen and nitrogen species in a clinical context.
Balaraman Kalyanaraman
doaj   +1 more source

What Did We Accomplish in Fighting Radical Species in Human Health?

Antioxidants, 2021
Maintaining the physiological level of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in the body is highly important in the fight against radical species in the context of human health [...]
Rachid Skouta
doaj   +1 more source

Tropospheric reactive odd nitrogen over the South Pacific in austral springtime [PDF]

, 2000
The distribution of reactive nitrogen species over the South Pacific during austral springtime appears to be dominated by biomass burning emissions and possibly lightning and stratospheric inputs.
Atlas, E, Blake, DR, Blake, NJ, Bradshaw, JD, Dibb, JE, Flocke, F, Sandholm, ST, Scheuer, EM, Singh, HB, Talbot, RW   +9 more
core   +2 more sources