Results 81 to 90 of about 165,176 (291)

Nitrification amplifies the decreasing trends of atmospheric oxygen and implies a larger land carbon uptake [PDF]

open access: yes, 2007
[1] Atmospheric O-2 trend measurements are used to partition global oceanic and land biotic carbon sinks on a multiannual basis. The underlying principle is that a terrestrial uptake or release of CO2 is accompanied by an opposite flux of O-2.
Bopp, L   +4 more
core   +2 more sources

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

open access: yesMolecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone   +11 more
wiley   +1 more source

Observations of total RONO2 over the boreal forest: NO x sinks and HNO3 sources [PDF]

open access: yes, 2013
In contrast with the textbook view of remote chemistry where HNO 3 formation is the primary sink of nitrogen oxides, recent theoretical analyses show that formation of RONO2 (ΣANs) from isoprene and other terpene precursors is the primary net chemical ...
Apel, E   +13 more
core   +1 more source

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

open access: yesMolecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon   +13 more
wiley   +1 more source

Aminoethyl nitrate – the novel super nitrate? [PDF]

open access: yesBritish Journal of Pharmacology, 2009
Long‐term use of most organic nitrates is limited by development of tolerance, induction of oxidative stress and endothelial dysfunction. In this issue of the BJP, Schuhmacher et al. characterized a novel class of organic nitrates with amino moieties (aminoalkyl nitrates).
openaire   +2 more sources

Simultaneous Determination of Nitrite and Nitrate in Milk Samples by Ion Chromatography Method and Estimation of Dietary Intake [PDF]

open access: yes, 2016
The presence of nitrate and nitrite in foods may be considered hazardous after ingestion in the gastrointestinal tract due to their reaction with naturally occurred secondary amines to form potentially carcinogenic nitrosamines.
Chamandust, S.   +6 more
core  

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

open access: yesMolecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff   +11 more
wiley   +1 more source

Impact du chargement d'arrière-saison sur les teneurs en azote potentiellement lessivable en prairie : références établies dans le sud-est de la Belgique

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2013
Impact of cattle stocking rate, under grazing, during autumn on potential nitrogen leaching: reference values established in the south-east of Belgium.
Hennart, S., Lambert, A., Stilmant, D.
doaj  

Nitrates in the treatment of patients with coronary artery disease. The role of aerosol formulations

open access: yesМедицинский совет, 2014
Nitrates have been commonly used in the treatment of patients with cardiovascular disease (CVD) for about 150 years. However, the feasibility and safety of nitrates in cardiology remains a matter of debate till today. Among CVDs, coronary artery disease (
AG Evdokimova, VV Evdokimov, NA Kozhina
doaj   +1 more source

WETWALL - an innovative design concept for the treatment of wastewater at an urban scale [PDF]

open access: yes, 2018
Rising temperatures, increasing food demand and scarcity of water and land resources highlight the importance of promoting the sustainable expansion of agriculture to our urban environment, while preserving water resources.
Arias, Carlos Alberto   +7 more
core   +4 more sources

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