Results 31 to 40 of about 50,050 (338)

Rubidium superoxide: a p-electron Mott insulator [PDF]

, 2012
Rubidium superoxide, RbO_2, is a rare example of a solid with partially-filled electronic p states, which allows to study the interplay of spin and orbital order and other effects of strong electronic correlations in a material that is quite different ...
Claude Ederer, Krzysztof Dymkowski, M. Rosenfeld, Philipp Werner, Roman Kováčik   +4 more
core   +2 more sources

Arginine-specific gingipains (RgpA/RgpB) knockdown modulates neutrophil machinery

Journal of Oral Microbiology
Background Gingipains are important virulence factors present in Porphyromonas gingivalis. Arginine-specific gingipains (RgpA and RgpB) are critically associated with increased proteolytic activity and immune system dysfunction, including neutrophilic ...
Vanessa Tubero Euzebio Alves, Tomaz Alves, Emanuel Silva Rovai, Hatice Hasturk, Thomas Van Dyke, Marinella Holzhausen, Alpdogan Kantarci   +6 more
doaj   +1 more source

Nitrate Increases Aluminum Toxicity and Accumulation in Root of Wheat

Agriculture, 2022
Aluminum (Al) toxicity inhibits root growth, while nitrogen is an essential nutrient for plant growth and development. To explore the effects of nitrate (N) on Al toxicity and accumulation in root of wheat, two wheat genotypes, Shengxuan 6 hao (SX6, Al ...
Yan Ma, Caihong Bai, Xincheng Zhang, Yanfeng Ding   +3 more
doaj   +1 more source

Extracellular superoxide dismutase VdSOD5 is required for virulence in Verticillium dahliae

Journal of Integrative Agriculture, 2021
Plants produce reactive oxygen species (ROS) to defend pathogens. To counteract this attack, certain pathogens express superoxide dismutases (SODs) to scavenge host-derived ROS.
Li TIAN, Cai-min HUANG, Dan-dan ZHANG, Ran LI, Jie-yin CHEN, Wei-xia SUN, Nian-wei QIU, Xiao-feng DAI   +7 more
doaj   +1 more source

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

Molecular Oncology, EarlyView.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller, Susanne Ebner, Carmen Haselrieder, Julia K. Günther, Astrid Drasche, Sophie Strich, Chiara Volani, Andrea Medici, Aleksandar Nikolajevic, Alex Deltedesco, Johannes E. Sigmund, Michael J. Blumer, Martin Hermann, Johanna Vanacker, Gerald Brandacher, Eduard Stefan, Omar Torres‐Quesada, Jakob Troppmair   +17 more
wiley   +1 more source

The non-obligatory role of endothelial cells in the relaxation of arterial smooth muscle by acetylcholine [PDF]

, 2008
The concept of Endothelium Derived Relaxing Factor (EDRF), put forward by Furchgott in the earlier 80s of the past century, implies that nitric oxide (NO) produced by NO synthase (NOS) in the endothelium in response to acetylcholine (ACh) passively ...
Frantisek Kristek, Igor Buchwalow, Joachim Neumann, Sona Cacanyiova, Vera Samoilova, Werner Boecker   +5 more
core   +1 more source

Mott physics in $2p$ electron dioxygenyl magnet : O$_{2}$$M$F$_{6}$ ($M$=Sb, Pt)

, 2011
We have investigated electronic structures and magnetic properties of O$_{2}$$M$F$_{6}$ ($M$=Sb, Pt), which are composed of two building blocks of strongly correlated electrons: O$_{2}^{+}$ dioxygenyls and $M$F$_{6}^{-}$ octahedra, by employing the first-
Kim, Minjae, Min, B. I.
core   +1 more source

Improved description of metal oxide stability:Beyond the random phase approximation with renormalized kernels [PDF]

, 2015
The renormalized adiabatic PBE (rAPBE) method has recently been shown to comprise a significant improvement over the random phase approximation (RPA) for total energy calculations of simple solids and molecules. Here we consider the formation energies of
Bligaard, Thomas, Jauho, Thomas Stenbæk, Olsen, Thomas, Thygesen, Kristian Sommer   +3 more
core   +1 more source

Dietary nitrate and nitrite protect against doxorubicin‐induced cardiac fibrosis and oxidative protein damage in tumor‐bearing mice

FEBS Open Bio, EarlyView.
Chemotherapies such as doxorubicin can have toxic effects on healthy cardiovascular/heart tissue. Following up on a doxorubicin toxicity study in mice without tumors where nitrate water was cardioprotective (lessened toxicity), this study with tumor‐bearing mice undergoing doxorubicin treatment showed no negative effect of nitrate and nitrite on drug ...
Rama D. Yammani, Xiaofei Chen, Nildris Cruz‐Diaz, Xuewei Zhu, Swati Basu, Daniel B. Kim‐Shapiro, David R. Soto‐Pantoja, Leslie B. Poole   +7 more
wiley   +1 more source

Deactivation of the JNK Pathway by GSTP1 Is Essential to Maintain Sperm Functionality

Frontiers in Cell and Developmental Biology, 2021
Fifty percent of male subfertility diagnosis is idiopathic and is usually associated with genetic abnormalities or protein dysfunction, which are not detectable through the conventional spermiogram.
Marc Llavanera, Marc Llavanera, Yentel Mateo-Otero, Yentel Mateo-Otero, Ariadna Delgado-Bermúdez, Ariadna Delgado-Bermúdez, Sandra Recuero, Sandra Recuero, Samuel Olives, Samuel Olives, Isabel Barranco, Isabel Barranco, Marc Yeste, Marc Yeste   +13 more
doaj   +1 more source