Results 31 to 40 of about 89,857 (309)

Nitration of Flavonoids and Tocopherols as Potential Modulators of Nitrosative Stress—A Study Based on Their Conformational Structures and Energy Content

Stresses, 2022
Vitamin E and dietary flavonoids are natural substances with antioxidant and anti-inflammatory activities, showing little or no side effects. Fruit and vegetable diets based on flavonoids and vitamin E provide a benefit to hypertensive subjects by ...
José Manuel Pérez de la Lastra, Celia Andrés Juan, Francisco J. Plou, Eduardo Pérez-Lebeña   +3 more
doaj   +1 more source

Macrocyclic colibactin induces DNA double-strand breaks via copper-mediated oxidative cleavage. [PDF]

, 2019
Colibactin is an assumed human gut bacterial genotoxin, whose biosynthesis is linked to the clb genomic island that has a widespread distribution in pathogenic and commensal human enterobacteria.
A Collins, A Cougnoux, AO Brachmann, BR Stern, Bradley S. Moore, CA Brotherton, CA Brotherton, CM Woo, D Payros, E Buc, EP Balskus, EP Rogakou, G Cuevas-Ramos, G Sharon, HB Bode, I Cho, J Chen, JA Stubbe, JC Arthur, Jennifer Y. H. Lai, Jie Li, JK Nicholson, JP Nougayrède, KJ Humphreys, KK Khanna, KS Chaturvedi, L Zha, L Zha, LB Schultz, LC Colis, LF Povirk, M Olier, M Pitie, MI Vizcaino, MI Vizcaino, MR Wilson, MS Donia, MS Donia, MS Melvin, N Bossuet-Greif, N Bossuet-Greif, NS Guntaka, P Engel, P Tripathi, Pei-Yuan Qian, RM Bleich, RM Burger, S Borah, S Tomkovich, Shaun M. K. McKinnie, T Faïs, T Pérez-Berezo, T Secher, TC Holmes, V Bondarev, Wei-Peng Zhang, Wenjun Zhang, Wenlong Cai, X Bian, X Bian, Y Pommier, YA Chan, Z-R Li, Z-R Li, Zhong-Rui Li   +64 more
core   +1 more source

Speciation of selected trace and major elements in lignite Used in "Nikola Tesla A" power plant (Obrenovac, Serbia) [PDF]

Journal of the Serbian Chemical Society, 2005
Four samples of milled lignite used in the “Nikola Tesla A” power plant, located in Obrenovac near Belgrade, were subjected to a five-step sequential extraction, comprising of the following phases: distilled water, 1 M ammonium acetate, 0.2 M ammonium ...
ALEKSANDAR POPOVIC, DRAGANA DJORDJEVIC
doaj   +3 more sources

Sonolysis of levodopa and paracetamol in aqueous solutions. [PDF]

, 2009
Pharmaceutical products are often present in wastewater treatment effluents, rivers, lakes and, more rarely, in groundwater. The advanced oxidation methods, like ultrasound, find a promising future in the area of wastewater treatment.
Delmas, Henri, Julcour-Lebigue, Carine, Jáuregui Haza, Ulises Javier, Quesada-Peñate, Isariebel, Wilhelm, Anne-Marie   +4 more
core   +1 more source

Rosmarinic acid induces programmed cell death in Arabidopsis seedlings through reactive oxygen species and mitochondrial dysfunction.

PLoS ONE, 2018
Phytotoxic potential of rosmarinic acid (RA), a caffeic acid ester largely found in aromatic species, was evaluated on Arabidopsis through metabolomic and microscopic approaches. In-vitro bioassays pointed out that RA affected root growth and morphology,
Fabrizio Araniti, Aitana Costas-Gil, Luz Cabeiras-Freijanes, Antonio Lupini, Francesco Sunseri, Manuel J Reigosa, Maria Rosa Abenavoli, Adela M Sánchez-Moreiras   +7 more
doaj   +1 more source

Free Radical Scavenging Potency of Dihydroxybenzoic Acids [PDF]

Journal of Chemistry, 2017
In order to evaluate the free radical scavenging potency of dihydroxybenzoic acids (DHBAs) the Density Functional Theory (DFT) was used. The M05-2X/6-311++G(d,p) and B3LYP-D2/6-311++G(d,p) theoretical models were applied. Three possible antioxidant mechanisms were examined: hydrogen atom transfer (HAT), single-electron transfer followed by proton ...
Dejan Milenković, Jelena Đorović, Svetlana Jeremić, Jasmina M. Dimitrić Marković, Edina H. Avdović, Zoran Marković   +5 more
openaire   +2 more sources

Modelling postharvest quality behaviour as affected by preharvest conditions [PDF]

, 2003
Some hundred years ago, wise men decided that preharvest research and applications had to be regarded separated from the postharvest handling and behaviour. Over the years, both areas developed completely separated.
Heuvelink, E., Simcic, M., Tijskens, L.M.M., Veltman, R.H.   +3 more
core   +2 more sources

A New Perspective on Hydrogen Chloride Scavenging at High Temperatures for Reducing the Smoke Acidity of PVC in Fires—III: EN 60754-2 and the Species in Solution Affecting pH and Conductivity

Fire
In the European Union, Regulation (EU) No 305/2011, in force since 2017 as CPR, requires the classification of cables permanently installed in buildings for reaction to fire, smoke, flaming droplets, and acidity.
Iacopo Bassi, Claudia Bandinelli, Francesca Delchiaro, Gianluca Sarti   +3 more
doaj   +1 more source

Magnetoelectrically driven catalytic degradation of organics

, 2019
Here, we report the catalytic degradation of organic compounds by exploiting the magnetoelectric (ME) nature of cobalt ferrite-bismuth ferrite (CFO-BFO) core-shell nanoparticles.
Chen, Xiang-Zhong, Hoop, Marcus, Limburg, Gregory, Marti, Xavi, Mushtaq, Fajer, Nelson, Bradley J., Pané, Salvador, Siringil, Erdem Can, Steuer, Christian, Stipp, Patrick, Torlakcik, Harun   +10 more
core   +1 more source

Heme catalyzes tyrosine 385 nitration and inactivation of prostaglandin H2 synthase-1 by peroxynitrite

Journal of Lipid Research, 2006
The mechanism by which the inflammatory enzyme prostaglandin H2 synthase-1 (PGHS-1) deactivates remains undefined. This study aimed to determine the stabilizing parameters of PGHS-1 and identify factors leading to deactivation by nitric oxide species ...
Ruba S. Deeb, Gang Hao, Steven S. Gross, Muriel Laineé, Ju Hua Qiu, Brad Resnick, Elisar J. Barbar, David P. Hajjar, Rita K. Upmacis   +8 more
doaj   +1 more source