Results 61 to 70 of about 1,751 (145)

Novel Applications of Lead Acetate and Flow Cytometry Methods for Detection of Sulfur-Containing Molecules

open access: yesMethods and Protocols, 2019
Hydrogen sulfide (H2S) is the most recently established gaseous vasodilator, enzymatically produced from cysteine metabolism, involved in a number of pathophysiological processes.
Evgeniya Anishchenko   +5 more
doaj   +1 more source

Sulfane Sulfur in Toxicology: A Novel Defense System Against Electrophilic Stress

open access: yesToxicological Sciences, 2019
Electrophiles can undergo covalent modification of cellular proteins associated with its dysfunction, thereby exerting toxicity. Small nucleophilic molecules such as glutathione protect cells from electrophilic insult by binding covalently to electrophiles to form adducts that are excreted into the extracellular space.
Yasuhiro, Shinkai, Yoshito, Kumagai
openaire   +2 more sources

Is Development of High-Grade Gliomas Sulfur-Dependent?

open access: yesMolecules, 2014
We characterized γ-cystathionase, rhodanese and 3-mercaptopyruvate sulfurtransferase activities in various regions of human brain (the cortex, thalamus, hypothalamus, hippocampus, cerebellum and subcortical nuclei) and human gliomas with II to IV grade ...
Maria Wróbel   +5 more
doaj   +1 more source

Supersulfide biology and translational medicine for disease control

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 1, Page 115-130, January 2026.
Abstract For decades, the major focus of redox biology has been oxygen, the most abundant element on Earth. Molecular oxygen functions as the final electron acceptor in the mitochondrial respiratory chain, contributing to energy production in aerobic organisms. In addition, oxygen‐derived reactive oxygen species including hydrogen peroxide and nitrogen
Uladzimir Barayeu   +5 more
wiley   +1 more source

Intermediates in the Sox sulfur oxidation pathway are bound to a sulfane conjugate of the carrier protein SoxYZ. [PDF]

open access: yesPLoS ONE, 2017
The Sox pathway found in many sulfur bacteria oxidizes thiosulfate to sulfate. Pathway intermediates are covalently bound to a cysteine residue in the carrier protein SoxYZ.
Daniel B Grabarczyk, Ben C Berks
doaj   +1 more source

3-Mercaptopyruvate sulfurtransferase: an enzyme at the crossroads of sulfane sulfur trafficking

open access: yesBiological Chemistry, 2020
Abstract 3-Mercaptopyruvate sulfurtransferase (MPST) catalyzes the desulfuration of 3-mercaptopyruvate to generate an enzyme-bound hydropersulfide. Subsequently, MPST transfers the persulfide’s outer sulfur atom to proteins or small molecule acceptors. MPST activity is known to be involved in hydrogen sulfide generation, tRNA thiolation,
Brandán Pedre, Tobias P. Dick
openaire   +2 more sources

Thioether Synthesis via the Nickel‐Catalyzed Electrochemical Cross Electrophile Coupling of Aryl/Alkyl Disulfides and Aryl/Alkyl Halides

open access: yesAdvanced Synthesis &Catalysis, Volume 367, Issue 22, November 28, 2025.
A nickel catalyzed electrochemical cross‐electrophile coupling approach for the base‐free synthesis of (un)symmetric (hetero)aryl and alkyl sulfides from organic halides and disulfides is described. The reaction is broadly applicable and tolerates water and air atmosphere. A formal cross‐electrophile coupling approach enables the base‐free synthesis of
Jona Queder, Gerhard Hilt
wiley   +1 more source

A selective and sensitive method for quantification of endogenous polysulfide production in biological samples

open access: yesRedox Biology, 2018
Hydrogen sulfide (H2S) is a gasotransmitter that regulates cellular homeostasis and impacts on multiple physiological and pathophysiological processes. However, it exerts many of its biological actions indirectly via the formation of H2S-derived sulfane ...
Sofia-Iris Bibli   +8 more
doaj   +1 more source

Development of a reversible fluorescent probe for reactive sulfur species, sulfane sulfur, and its biological application

open access: yesChemical Communications, 2017
We developed a reversible fluorescent probe for sulfane sulfur. This probe enabled us to monitor concentration changes of sulfane sulfur.
Yoko Takano   +9 more
openaire   +3 more sources

Combined SPME—GC × GC–MS Volatilomics and UHPLC–HRMS Metabolomics Data Fusion Provides a Multidimensional Fingerprinting and Discrimination of White Garlic From the Piacenza Region

open access: yesJournal of Food Science, Volume 90, Issue 10, October 2025.
ABSTRACT Garlic quality is attributed to a diverse array of volatile and non‐volatile compounds, and several varieties are protected under geographical indication schemes, whereas many typical local cultivars remain chemically uncharacterized. Among them, white garlic from Piacenza (Italy) is a traditional product with recognized sensory attributes. In
Giulia Leni   +7 more
wiley   +1 more source

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