نتایج جستجو برای: iron disulfide

تعداد نتایج: 161391  

2013
Ruchaneekorn W. Kalpravidh Thongchai Tangjaidee Suneerat Hatairaktham Ratiya Charoensakdi Narumol Panichkul Noppadol Siritanaratkul Suthat Fucharoen

β -thalassemia/Hb E is known to cause oxidative stress induced by iron overload. The glutathione system is the major endogenous antioxidant that protects animal cells from oxidative damage. This study aimed to determine the effect of disease state and splenectomy on redox status expressed by whole blood glutathione (GSH)/glutathione disulfide (GSSG) and also to evaluate glutathione-related resp...

Journal: :The Tohoku journal of experimental medicine 1982
Y Tanno T Takishima

Diiron enneacarbonyl, colloidal iron particles used for removing monocytes, enhanced the 3H-thymidine uptake into the mitogen-stimulated human lymphocytes in serum-free medium, whereas neither silica particles, latex particles, carbonyl iron powder nor iron pentacarbonyl did. Because monocytes had no influence on the enhancing effect or diiron enneacarbonyl did not bind to PHA, it was suggested...

Journal: :Angewandte Chemie 2021

Given the inherent performance limitations of intercalation-based lithium-ion batteries, solid-state conversion batteries are promising systems for future energy storage. A high specific capacity and natural abundancy make iron disulfide (FeS2) a cathode-active material. In this work, FeS2 nanoparticles were prepared solvothermally. By adjusting synthesis conditions, samples with average partic...

Journal: :Biochemistry 2009
Jason C Crack Chris D den Hengst Piotr Jakimowicz Sowmya Subramanian Michael K Johnson Mark J Buttner Andrew J Thomson Nick E Le Brun

WhiD, a member of the WhiB-like (Wbl) family of iron-sulfur proteins found exclusively within the actinomycetes, is required for the late stages of sporulation in Streptomyces coelicolor. Like all other Wbl proteins, WhiD has not so far been purified in a soluble form that contains a significant amount of cluster, and characterization has relied on cluster-reconstituted protein. Thus, a major g...

Afsaneh Alipour Azadeh Shafaie Gholam Hossein Rounaghi Hossein Eshghi Zaiddodine Pashandi

The regioselective ring opening of styrene oxide using elemental iodine and bromine in the presence of disulfides as new catalysts was studied. The conductivity titration and UV spectroscopy were used to study the interaction of iodine with these catalysts. The results indicate that disulfide 11 is efficient in polyiodide formation, and can catalyze this reaction in excellent yield and high reg...

2011
Boguslaw Lipinski

It is generally believed that diseases caused by oxidative stress should be treated with antioxidants. However, clinical trials with such antioxidants as ascorbic acid and vitamin E, failed to produce the expected beneficial results. On the other hand, important biomolecules can be modified by the introduction of oxygen atoms by means of non-oxidative hydroxyl radicals. In addition, hydroxyl ra...

2011
Pubudu M. Peiris Erik Schmidt Michael Calabrese Efstathios Karathanasis

Besides the multifunctionality, another equally important aspect of nanoparticles is their engineerability to control the geometrical and chemical properties during fabrication. In this work, we exploited this aspect to define asymmetric surface chemistry of an iron oxide nanosphere by controlling the topology of ligand expression on its surface resulting in a particle with two faces, one displ...

Journal: :The Journal of biological chemistry 2006
Chad R Simmons Qun Liu Qingqiu Huang Quan Hao Tadhg P Begley P Andrew Karplus Martha H Stipanuk

Cysteine dioxygenase is a mononuclear iron-dependent enzyme responsible for the oxidation of cysteine with molecular oxygen to form cysteine sulfinate. This reaction commits cysteine to either catabolism to sulfate and pyruvate or the taurine biosynthetic pathway. Cysteine dioxygenase is a member of the cupin superfamily of proteins. The crystal structure of recombinant rat cysteine dioxygenase...

Journal: :Pediatric practice and research 2021

Aim: Testicular torsion which is the most common cause of acute scrotum, a real surgical emergency. However, despite imaging techniques and laboratory studies used in differential diagnosis pathologies causing difficult. Therefore, there need for parameters that confirm testicular torsion.In our study, we aimed to investigate usability as parameter scrotum inflammation children via thiol-disulf...

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