Results 31 to 40 of about 5,067,634 (225)

Using resonance synchronous spectroscopy to characterize the reactivity and electrophilicity of biologically relevant sulfane sulfur

Redox Biology, 2019
Sulfane sulfur is common inside cells, playing both regulatory and antioxidant roles. However, there are unresolved issues about its chemistry and biochemistry.
Huanjie Li, Huaiwei Liu, Zhigang Chen, Rui Zhao, Qingda Wang, Mingxue Ran, Yongzhen Xia, Xin Hu, Jihua Liu, Ming Xian, Luying Xun   +10 more
doaj   +1 more source

Sulfur ligated oxoiron(IV) centre in fenton-like reaction: Theoretical postulation and experimental verification

Catalysis Communications, 2022
The intermediate FeIVO in circumneutral Fenton-like reactions is critical in selective oxidations. However, the inferior electron donation of ligands renders the reactivity of oxoiron(IV) cores.
Shiyu Hu, Donghui Wang, Rujia Guo, Feng Chen   +3 more
doaj   +1 more source

DEVELOPMENT OF NOVEL REACTIVE SULFUR SPECIES DONORS [PDF]

, 2018
Reactive sulfur species are important cell signaling molecules. Among them, hydrogen sulfide (H2S), hydrogen polysulfides (H2Sn, n>1), persulfides (RSSH), and S-nitroso hydrogen sulfide (HSNO) are believed to be mediators of many physiological and/or ...
Kang, Jianming
core   +2 more sources

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

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

Reactive oxygen species scavenging by catalase is important for female lutzomyia longipalpis fecundity and mortality [PDF]

, 2011
The phlebotomine sand fly Lutzomyia longipalpis is the most important vector of American visceral leishmaniasis (AVL), the disseminated and most serious form of the disease in Central and South America.
Genta, Fernando A., Diaz-Albiter, Hector, Dillon, Rod J., Mitford, Roanna, Sant'Anna, Mauricio R. V.   +4 more
core   +5 more sources

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

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

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