Results 41 to 50 of about 156,055 (260)

Polysulfide stabilization by tyrosine and hydroxyphenyl-containing derivatives that is important for a reactive sulfur metabolomics analysis

Redox Biology, 2019
The physiological importance of reactive sulfur species (RSS) such as cysteine hydropersulfide (CysSSH) has been increasingly recognized in recent years.
Hisyam Abdul Hamid, Akira Tanaka, Tomoaki Ida, Akira Nishimura, Tetsuro Matsunaga, Shigemoto Fujii, Masanobu Morita, Tomohiro Sawa, Jon M. Fukuto, Péter Nagy, Ryouhei Tsutsumi, Hozumi Motohashi, Hideshi Ihara, Takaaki Akaike   +13 more
doaj   +1 more source

Primary and secondary oxidative stress in Bacillus [PDF]

, 2011
Coping with oxidative stress originating from oxidizing compounds or reactive oxygen species (ROS), associated with the exposure to agents that cause environmental stresses, is one of the prerequisites for an aerobic lifestyle of Bacillus spp. such as B.
Abee, T., Mols, J.M.
core   +3 more sources

Biologically Relevant Small Radicals

CHIMIA, 2008
Biologically relevant small radicals are at the focus of the working group 4 (WG4) of the COST Action CM0603 (Free Radicals in Chemical Biology, CHEMBIORADICAL). This article surveys the areas of research being undertaken by the partners in WG4.
Georg Bauer, Gabor Speier, Gabor Merenyi, Jozsef Kaizer, Sara Goldstein, Bernard T. Golding, Georg Gescheidt, Lidia Gebicka, Jerzy L. Gebicki, Chryssostomos Chatgilialoglu, Peter Wardman   +10 more
doaj   +1 more source

The Inactivation of LPS Biosynthesis Genes in E. coli Cells Leads to Oxidative Stress

Cells, 2022
Impaired lipopolysaccharide biosynthesis in Gram-negative bacteria results in the “deep rough” phenotype, which is characterized by increased sensitivity of cells to various hydrophobic compounds, including antibiotics novobiocin, actinomycin D ...
Tatiana A. Seregina, Irina Yu. Petrushanko, Rustem S. Shakulov, Pavel I. Zaripov, Alexander A. Makarov, Vladimir A. Mitkevich, Alexander S. Mironov   +6 more
doaj   +1 more source

HIx system thermodynamic model for hydrogen production by the sulfur-iodine cycle [PDF]

, 2009
The HIx ternary system (H2O – HI – I2) is the latent source of hydrogen for the Sulfur – Iodine thermo-chemical cycle. After analysis of the literature data and models, a homogeneous approach with the Peng-Robinson equation of state used for both the ...
Baudouin, Olivier, Borgard, Jean-Marc, Carles, Philippe, Floquet, Pascal, Gerbaud, Vincent, Hadj-Kali, Mohamed, Joulia, Xavier   +6 more
core   +2 more sources

Global deposition of total reactive nitrogen oxides from 1996 to 2014 constrained with satellite observations of NO2 columns [PDF]

, 2017
Reactive nitrogen oxides (NOy) are a major constituent of the nitrogen deposited from the atmosphere, but observational constraints on their deposition are limited by poor or nonexistent measurement coverage in many parts of the world.
Geddes, Jeffrey A., Martin, Randall V.
core   +1 more source

Inorganic Polysulfides and Related Reactive Sulfur–Selenium Species from the Perspective of Chemistry

Molecules, 2019
Polysulfides (H2Sx) represent a class of reactive sulfur species (RSS) which includes molecules such as H2S2, H2S3, H2S4, and H2S5, and whose presence and impact in biological systems, when compared to other sulfur compounds, has only recently attracted ...
Ammar Kharma, Marian Grman, Anton Misak, Enrique Domínguez-Álvarez, Muhammad Jawad Nasim, Karol Ondrias, Miroslav Chovanec, Claus Jacob   +7 more
doaj   +1 more source

A Zero-Valent Sulfur Transporter Helps Podophyllotoxin Uptake into Bacterial Cells in the Presence of CTAB

Antioxidants, 2023
Podophyllotoxin (PTOX) is naturally produced by the plant Podophyllum species. Some of its derivatives are anticancer drugs, which are produced mainly by using chemical semi-synthesis methods.
Honglei Liu, Huiyuan Yu, Rui Gao, Fulin Ge, Rui Zhao, Xia Lu, Tianqi Wang, Huaiwei Liu, Chunyu Yang, Yongzhen Xia, Luying Xun   +10 more
doaj   +1 more source

Gas emission strength and evolution of the molar ratio of BrO/SO2 in the plume of Nyiragongo in comparison to Etna [PDF]

, 2015
Airborne and ground-based differential optical absorption spectroscopy observations have been carried out at the volcano Nyiragongo (Democratic Republic of Congo) to measure SO2 and bromine monoxide (BrO) in the plume in March 2004 and June 2007 ...
Aiuppa, Aiuppa, Aiuppa, Aiuppa, Aiuppa, Bobrowski, Bobrowski, Bobrowski, Bobrowski, Bobrowski, Boichu, Bureau, Carn, Chakrabarti, Delmelle, Dorf, Durieux, Ebinger, Fitzenberger, Galle, Galle, Gerlach, Gerlach, Gerlach, Giggenbach, Glasow, Glasow, Glasow, Glasow, Halmer, Honda, Horrocks, Hönninger, Kelly, Kern, Kitto, Komorowski, Kutterolf, Lary, Lazrus, Martin, Martin, Noguchi, Oppenheimer, Parrella, Pennisi, Pinto, Platt, Pundt, Pyle, Richter, Richter, Roberts, Robock, Rogers, Rogers, Saiz-Lopez, Salawitch, Sawyer, Schofield, Schofield, Sedlacek, Shinohara, Sturges, Surl, Symonds, Tazieff, Theys, Theys, Wennberg, Witt, Wittmer, Woods, Yang   +73 more
core   +1 more source

Gut microbiota reinforce host antioxidant capacity via the generation of reactive sulfur species

Cell Reports, 2022
Summary: Gut microbiota act beyond the gastrointestinal tract to regulate the physiology of the host. However, their contribution to the antioxidant capacity of the host remains largely understudied.
Jun Uchiyama, Masahiro Akiyama, Koji Hase, Yoshito Kumagai, Yun-Gi Kim   +4 more
doaj   +1 more source