Results 51 to 60 of about 202,861 (363)

Nanoelectrodes for intracellular measurements of reactive oxygen and nitrogen species in single living cells [PDF]

Current Opinion in Electrochemistry, Elsevier, 2020, 22, pp.44-50, 2020
Reactive oxygen and nitrogen species (ROS and RNS) play important roles in various physiological processes (e.g., phagocytosis) and pathological conditions (e.g., cancer). The primary ROS/RNS, viz., hydrogen peroxide, peroxynitrite ion, nitric oxide, and nitrite ion, can be oxidized at different electrode potentials and therefore detected and ...
arxiv   +1 more source

Ecological control of nitrite in the upper ocean

Nature Communications, 2018
Microorganisms oxidize organic nitrogen to nitrate in a series of steps. Nitrite, an intermediate product, accumulates at the base of the sunlit layer in the subtropical ocean, forming a primary nitrite maximum, but can accumulate throughout the sunlit ...
E. Zakem, Alia N. Al‐Haj, M. Church, G. V. van Dijken, S. Dutkiewicz, S. Q. Foster, R. Fulweiler, M. Mills, M. Follows   +8 more
semanticscholar   +1 more source

Decreased natural organic matter in water distribution decreases nitrite formation in non-disinfected conditions, via enhanced nitrite oxidation

Water Research X, 2020
Nitrite in drinking water is a potentially harmful substance for humans, and controlling nitrite formation in drinking water distribution systems (DWDSs) is highly important.
Pirjo-Liisa Rantanen, Minna M. Keinänen-Toivola, Merja Ahonen, Alejandro González-Martínez, Ilkka Mellin, Riku Vahala   +5 more
doaj  

Removal Efficiency of Nitrite and Sulfide Pollutants by Electrochemical Process by Using Ti/RuIrO₂ Anode

Indonesian Journal of Chemistry, 2018
In general, wastewater treatment by physical, chemical and biological methods are only focused on TSS, BOD and COD removals that the effluent still contains anion pollutant as NO2- and S2-.
Aris Mukimin, Agus Purwanto
doaj   +1 more source

Nitrite influence on fish: a review

, 2018
Nitrite is an intermediate in the oxidation of ammonium to nitrate. An elevated ambient nitrite concentration is a potential problem for freshwater fish since nitrite is actively taken up across the gills in competition with chloride.
H. Kroupová, J. Machova, Z. Svobodová
semanticscholar   +1 more source

Nitrite and nitrate chemical biology and signalling

British Journal of Pharmacology, 2018
Inorganic nitrate (NO3−), nitrite (NO2−) and NO are nitrogenous species with a diverse and interconnected chemical biology. The formation of NO from nitrate and nitrite via a reductive ‘nitrate–nitrite–NO’ pathway and resulting in vasodilation is now an ...
A. DeMartino, D. Kim-Shapiro, R. Patel, M. Gladwin   +3 more
semanticscholar   +1 more source

Dietary Nitrate Supplementation Does Not Alter Exercise Efficiency at High Altitude – Further Results From the Xtreme Alps Study

Frontiers in Physiology, 2022
IntroductionNitrate supplementation in the form of beetroot juice (BRJ) ingestion has been shown to improve exercise tolerance during acute hypoxia, but its effect on exercise physiology remains unstudied during sustained terrestrial high altitude ...
Philip J. Hennis, Philip J. Hennis, Andrew F. Cumpstey, Andrew F. Cumpstey, Alasdair F. O’Doherty, Bernadette O. Fernandez, Bernadette O. Fernandez, Edward T. Gilbert-Kawai, Kay Mitchell, Kay Mitchell, Helen Moyses, Alexandra Cobb, Paula Meale, Helmut Pöhnl, Monty G. Mythen, Michael P. W. Grocott, Michael P. W. Grocott, Denny Z. H. Levett, Denny Z. H. Levett, Daniel S. Martin, Daniel S. Martin, Martin Feelisch, Martin Feelisch, Martin Feelisch, The Xtreme Alps Research Group, Adam Booth, Adam Sheperdigian, Alasdair O’Doherty, Alex Salam, Alexandra Cobb, Andrew Cumpstey, Bernadette Fernandez, Damian Mole, Daniel Grant, Daniel Martin, Denny Levett, Edith Kortekaas, Edward Gilbert, Fabio Rigat, Fiona Shrubb, Heng Yow, James Farrant, Jildou van der Kaaij, Jim Milledge, Jo Simpson, Kay Mitchell, Laura Jackson, Liesl Wandrag, Lindsay Bisiker, Mark Edsell, Martin Feelisch, Maryam Khosravi, Matt Sanborn, Michael Grocott, Michael Mythen, Nick Talbot, Oliver Burdall, Oliver Firth, Oliver Moses, Paula Meale, Phil Hennis, Savini Wijesingha, Steve Dauncey, Tom Adams, Tom Woolley, Wilby Williamson, Will Jenner, Zeyn Mahomed   +67 more
doaj   +1 more source

Comparative activity of dimethyl fumarate derivative IDMF in three models relevant to multiple sclerosis and psoriasis

FEBS Open Bio, EarlyView.
IDMF is a derivative of dimethyl fumarate (DMF) with a unique therapeutic potential at the intersection of psoriasis and multiple sclerosis. Here, we demonstrate that it compares favorably with DMF and its other derivatives, such as Diroximel, in the zebrafish, microglia, and lymphocyte models.
Yulin He, Guiyi Gong, Geovani Quijas, Simon Ming‐Yuen Lee, Ratan K. Chaudhuri, Krzysztof Bojanowski   +5 more
wiley   +1 more source

A Review of the In Vivo Evidence Investigating the Role of Nitrite Exposure from Processed Meat Consumption in the Development of Colorectal Cancer

Nutrients, 2019
The World Cancer Research Fund (WCRF) 2007 stated that the consumption of processed meat is a convincing cause of colorectal cancer (CRC), and therefore, the public should avoid it entirely.
W. Crowe, C. Elliott, B. Green
semanticscholar   +1 more source

Comparative Genomics of Candidatus Methylomirabilis Species and Description of Ca. Methylomirabilis Lanthanidiphila

Frontiers in Microbiology, 2018
Methane is a potent greenhouse gas, which can be converted by microorganism at the expense of oxygen, nitrate, nitrite, metal-oxides or sulfate. The bacterium ‘Candidatus Methylomirabilis oxyfera,’ a member of the NC10 phylum, is capable of nitrite ...
Wouter Versantvoort, Simon Guerrero-Cruz, Daan R. Speth, Jeroen Frank, Jeroen Frank, Lavinia Gambelli, Geert Cremers, Theo van Alen, Mike S. M. Jetten, Mike S. M. Jetten, Mike S. M. Jetten, Boran Kartal, Huub J. M. Op den Camp, Joachim Reimann   +13 more
doaj   +1 more source