Results 1 to 10 of about 550,413 (349)

Role of reactive nitrogen species in male infertility. [PDF]

Reprod Biol Endocrinol, 2012
Reactive nitrogen species (RNS) is a subset of free oxygen radicals called reactive oxygen species (ROS). Physiological levels of ROS are necessary to maintain the reproductive functions such as cell signaling, tight junction regulation, production of ...
Doshi SB, Khullar K, Sharma RK, Agarwal A.   +3 more
europepmc   +5 more sources

Bioenergetics and Reactive Nitrogen Species in Bacteria. [PDF]

Int J Mol Sci, 2022
The production of reactive nitrogen species (RNS) by the innate immune system is part of the host’s defense against invading pathogenic bacteria. In this review, we summarize recent studies on the molecular basis of the effects of nitric oxide and peroxynitrite on microbial respiration and energy conservation.
Borisov VB, Forte E.
europepmc   +4 more sources

Summertime distribution and relations of reactive odd nitrogen species and NO_y in the troposphere over Canada [PDF]

, 1994
We report here large-scale features of the distribution of NOx, HNO3, PAN, particle (NO3) (-) and NOy in the troposphere from 0.15 to 6 km altitude over central Canada.
R. W. Talbot, J. D. Bradshaw, S. T. Sandholm, H. B. Singh, G. W. Sachse, J. E. Collins, G. L. Gregory, B. E. Anderson, D. R. Blake, J. D. Barrick, E. V. Browell, Kerstin Klemm, B. L. Lefer, Otto Klemm, K. Gorzelska, J. Olson, D. Herlth, D. O'Hara   +17 more
openalex   +4 more sources

Reactive nitrogen species in cellular signaling. [PDF]

Exp Biol Med (Maywood), 2015
The transduction of cellular signals occurs through the modification of target molecules. Most of these modifications are transitory, thus the signal transduction pathways can be tightly regulated. Reactive nitrogen species are a group of compounds with different properties and reactivity.
Adams L, Franco MC, Estevez AG.
europepmc   +5 more sources

Reactive nitrogen species in host-bacterial interactions. [PDF]

Curr Opin Immunol, 2019
Reactive nitrogen species play diverse and essential roles in host-pathogen interactions. Here, we review selected recent discoveries regarding nitric oxide (NO) in host defense and the pathogenesis of infection, mechanisms of bacterial NO resistance, production of NO by human macrophages, NO-based antimicrobial therapeutics and NO interactions with ...
Fang FC, Vázquez-Torres A.
europepmc   +4 more sources

Switching Reactive Oxygen Species into Reactive Nitrogen Species by Photocleaved O₂ -Released Nanoplatforms Favors Hypoxic Tumor Repression. [PDF]

Adv Sci (Weinh), 2021
In various reactive oxygen species (ROS)‐based antitumor approaches (e.g., photodynamic therapy), increasing attentions are made to improve ROS level, but the short lifetime that is another decisive hurdle of ROS‐based antitumor outcomes is not even ...
Luo T, Wang D, Liu L, Zhang Y, Han C, Xie Y, Liu Y, Liang J, Qiu G, Li H, Su D, Liu J, Zhang K.   +12 more
europepmc   +2 more sources

Modification of DNA structure by reactive nitrogen species as a result of 2-methoxyestradiol-induced neuronal nitric oxide synthase uncoupling in metastatic osteosarcoma cells. [PDF]

Redox Biol, 2020
2-methoxyestradiol (2-ME) is a physiological anticancer compound, metabolite of 17β-estradiol. Previously, our group evidenced that from mechanistic point of view one of anticancer mechanisms of action of 2-ME is specific induction and nuclear hijacking ...
Gorska-Ponikowska M, Ploska A, Jacewicz D, Szkatula M, Barone G, Lo Bosco G, Lo Celso F, Dabrowska AM, Kuban-Jankowska A, Gorzynik-Debicka M, Knap N, Chmurzynski L, Dobrucki LW, Kalinowski L, Wozniak M.   +14 more
europepmc   +2 more sources

Reactive Oxygen and Nitrogen Species in Plants

Antioxidants
Reactive oxygen and nitrogen species (ROS and RNS) include two families of molecules that, in recent years, have been shown to be involved in a wide range of biological functions, such as seed and pollen germination, the development and regulation of ...
Francisco J Corpas, José M. Palma
doaj   +3 more sources

Reactive oxygen and nitrogen species in pulmonary hypertension [PDF]

Free Radical Biology and Medicine, 2012
Pulmonary vascular disease can be defined as either a disease affecting the pulmonary capillaries and pulmonary arterioles, termed pulmonary arterial hypertension, or a disease affecting the left ventricle, called pulmonary venous hypertension. Pulmonary arterial hypertension (PAH) is a disorder of the pulmonary circulation characterized by endothelial
Diana M. Tabima, Sheila Frizzell, Mark T. Gladwin   +2 more
openalex   +4 more sources

Effects of aluminum on metabolism of reactive oxygen species and reactive nitrogen species in root tips of different Eucalyptus species. [PDF]

BMC Plant Biol
On acidified soil, the growth of Eucalyptus is seriously restricted by aluminum (Al) stress. Therefore, breeding Eucalyptus species with excellent Al tolerance, developing the genetic potential of species, and improving tolerance to Al stress are ...
Ouyang Z, Liu B, Li T, Bai T, Teng W.
europepmc   +2 more sources