Selenium Containing Abstract

  • Selenium — Health Professional Fact Sheet

    As discussed earlier, Brazil nuts contain very high amounts of selenium (68–91 mcg per nut) and could cause selenium toxicity if consumed regularly. Acute selenium toxicity has resulted from the ingestion of misformulated over-the-counter products containing very large amounts of selenium [2,5].

  • Selenium-containing xanthine dehydrogenase from ...

    The molecular mass of the cofactor indicated that it is of the dinucleotide type. The enzyme contained iron, acid-labile sulfur, molybdenum, tungsten, selenium and FAD at molar ratios of 17.5, 18.4, 2.3, 1.1, 0.95 and 2.8 per mol of native enzyme.

  • Selenium-containing block copolymers and their oxidation ...

    Selenium-containing block copolymers and their oxidation-responsive aggregates Ning Ma , a Ying Li , a Huifeng Ren , a Huaping Xu , * a Zhibo Li b and Xi Zhang * a

  • ChemInform Abstract: Some New Selenium-Containing ...

    ChemInform Abstract: Some New Selenium-Containing Analogues of Pyridocarbazoles and Indolocarbazoles. ChemInform, 2000. Delphine Joseph. Gilbert Kirsch. Hervé Royer. Delphine Joseph. Gilbert Kirsch. Hervé Royer. Download with Google Download with Facebook or download with email.

  • Chickpea (Cicer arietinum L.) sprouts containing ...

    However, the selenium content in foods is affected by selenium levels in the soil. Worldwide 15% of the world population have selenium deficiency, due to the consumption of foods with low selenium content (Lazo-Vélez, Chávez-Santoscoy, & Serna-Saldivar, 2015). Daily requirements of selenium can be satisfied with foods enriched with selenium.

  • Selenium prevention | Cam-Cancer

    Oct 20, 2013· Selenium is bound to selenoproteins in the human body after intestinal absorption and incorporated into proteins either specifically, in catalytically active selenoenzymes, or non-specifically in tissue proteins 13. More than 25 selenium-containing enzymes have been identified to date. There are at least two functional groups of selenoproteins.

  • Selenium-Containing Polymers: Perspectives toward Diverse ...

    Selenium is a semimetallic element lying in group XVI of the periodic table with its chemical properties resembling sulfur. But owing to its relatively low electronegativity and large atomic radius compared with sulfur, selenium also shows unique properties. This feature endows selenium-containing compounds with high reactivity and sensitivity.

  • Selenium: Uses, Side Effects, Interactions, Dosage, and ...

    Learn more about Selenium uses, effectiveness, possible side effects, interactions, dosage, user ratings and products that contain Selenium

  • Well-Defined Selenium-Containing Aliphatic Polycarbonates ...

    The synthesis of well-defined, biodegradable selenium-containing polymers remains a formidable challenge in polymer chemistry. Herein, a selenic cyclic carbonate dimer monomer (MSe) was developed to generate well-defined, biodegradable aliphatic polycarbonates with selenide functionality on the backbone. The monomer was synthesized via the intermolecular cyclization of di(1-hydroxyethylene ...

  • ChemInform Abstract: Isoselenocyanates — A Powerful Tool ...

    Conclusions In summary, isoselenocyanates have been emerged as a powerful tool for the synthesis of selenium-containing heterocycles. This review provides a comprehensive survey of the progress in the various reactions of isoselenocyanates, their application in the preparation of various types of selenium-containing heterocycles.

  • Identification of a Novel Selenium-containing Compound ...

    Jun 11, 2010· A novel selenium-containing compound, 2-selenyl-N α,N α,N α-trimethyl-l-histidine, a selenium analog of ergothioneine we call “selenoneine,” was identified as a strong antioxidant in tuna tissues. This compound has a unique chemical structure and is the first example of a natural heterocyclic compound with a selenoketone derived from ...

  • Occurrence of selenium-containing tRNAs in mouse leukemia ...

    Abstract. Selenium incorporation into the polynucleotide structures of tRNAs has been documented in several microorganisms. In the present study, selenium-containing species were isolated from bulk tRNA preparations from 75Se-labeled mouse leukemia cells. The major 75Se-labeled species was similar in size and exhibited the same sensitivity to ...

  • What Is An Abstract Class In Java? - Selenium

    If you will go to attend an interview for selenium WebDriver software testing tool with java , 90% Interviewer will ask you this question. Your answer should be like this : An abstract class is a class that is declared with abstract keyword.If class contains any abstract method then you must have to declare your class as abstract class in java software development language.

  • A New Human Selenium-containing Protein

    Apr 10, 1998· Abstract. Selenium which occurs in proteins as the amino acid, selenocysteine, is essential for numerous biological processes and for human health. A prominent 75 Se-labeled protein detected in human T-cells migrated as a 15-kDa band by SDS-polyacrylamide gel electrophoresis. This protein subunit was purified and subjected to tryptic digestion ...

  • Selenium, selenoproteins and human health: a review ...

    If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about sending content to Google Drive . Selenium, selenoproteins and human health: a review

  • Role of selenium-containing proteins in T-cell and ...

    Role of selenium-containing proteins in T-cell and macrophage function - Volume 69 Issue 3 - Bradley A. Carlson, Min-Hyuk Yoo, Rajeev K. Shrimali, Robert …

  • Selenium-Containing [email protected] Frameworks ...

    Abstract. The development of efficient multiresponsive drug delivery systems (DDSs) to control drug release has been widely explored. Herein, a facile strategy is reported that enables the micelles of the selenium-containing polymer with the drug to be encapsulated in metal-organic frameworks (MOFs), which serves as multiresponsive drug release by employing the selenium-containing polymers ...

  • Transformation of Selenium-Containing Phases in Copper ...

    Abstract The transformation of selenium-containing phases in copper anode slimes during the leaching process was investigated based on the Eh-pH diagram, leaching efficiencies of metals, and characterization of the residues produced during leaching.

  • A New Human Selenium-containing Protein - jbc.org

    Genes corresponding to the 15-kDa selenocysteine-containing protein were found in mice and rats, while the corresponding genes inCaenorhabditis elegans and Brugia malayicontained a cysteine codon in place of TGA. The discovery of a new human selenoprotein provides an additional example of the role of selenium in mammalian systems.

  • Java Abstract Class and Methods with EXAMPLE - Guru99

    abstract public void calculateArea(); For an abstract method, no implementation is required. Only the signature of the method is defined. Abstract Class in Java: Important Points. An abstract class may also have concrete (complete) methods. For design purpose, a class can be declared abstract even if it does not contain any abstract methods

  • Selenium-containing polymers: promising biomaterials for ...

    Selenium is an essential element in human body with potential antioxidant properties. Because of selenium's electronegativity and atomic radius, selenium-containing compounds exhibit unique bond energy (C-Se bond 244 kJ mol⁻¹; Se-Se bond 172 kJ mol⁻¹).

  • ChemInform Abstract: Preparation of Chiral Phosphorus ...

    ChemInform Abstract: Preparation of Chiral Phosphorus, Sulfur and Selenium Containing 2- Aryloxazolines. Download. ChemInform Abstract: Preparation of Chiral Phosphorus, Sulfur and Selenium Containing 2- Aryloxazolines ... Sulfur and Selenium Containing 38 - 142 2- Aryloxazolines. — A series of enantiomerically pure (diarylphos- phino ...

  • Selenium Content of Foods | The Journal of Nutrition ...

    Dec 01, 1970· Abstract. The selenium content of a wide variety of foods representing a cross section of the American diet was determined by fluorometry. Most fruits and vegetables contained quantities of selenium less than 0.01 µg/g. Exceptions were garlic, mushroom, and radish containing 0.25, 0.13 and 0.04 µg/g, respectively.

  • Discovery of the strong antioxidant selenoneine in tuna ...

    May 26, 2010· A novel selenium-containing compound, selenoneine, has been isolated as the major form of organic selenium in the blood and tissues of tuna. Selenoneine harbors a selenium atom in the imidazole ring, 2-selenyl-N α, N α, N α-trimethyl-L-histidine, and is a selenium analog of ergothioneine.This selenium compound has strong antioxidant capacity and binds to heme proteins, …

  • WWRC 88-23 : Abstract : Selenium Informational Tour

    Selenium is an essential micronutrient and is required for vitamin E metabolism. Nationwide, selenium deficiency in livestock is a far more common occurrence than selenium toxicity. Livestock in the midwest and eastern U.S. are often fed selenium supplements because the element is …

  • Interactions of Cu(I) with selenium-containing amino acids ...

    DFT models of 1:1 Cu-selenoamino acid complexes suggest that both selenoamino acids coordinate Cu(I) through the selenium and amino groups, with the third ligand assumed to be water. These compounds represent the first structurally characterized copper(I) complexes with sulfur-or selenium-containing amino acids.

  • MAMMALIAN SELENIUM-CONTAINING PROTEINS | Annual …

    Abstract Mammalian selenium-containing proteins can be divided into three groups: proteins containing nonspecifically incorporated selenium, specific selenium-binding proteins, and specific selenocysteine-containing selenoproteins. Selenoproteins with known functions identified so far include five glutathione peroxidases, two deiodinases, several thioredoxin reductases, and selenophosphate ...

  • Biologically significant selenium-containing heterocycles ...

    Abstract. Selenium represents an essential element for organisms as various diseases can result from selenium deficiency. As a consequence, selenium-containing heterocycles are of considerable biochemical and pharmacological relevance. Selenium-containing heterocycles are often less stable than the corresponding sulfur analogues.

  • Selenium Benefits, Foods, & Deficiency: All You Need to Know

    Sep 17, 2018· Selenium is critical for the endocrine system, especially the thyroid gland, which affects metabolism, as well as heart, brain, and muscle function. Selenium helps convert T4 to T3 by removing one iodine molecule through the selenium-containing iodothyronine deiodinase molecule. Thus, selenium is critical for proper functioning of your ...

  • Purification and characterization of selenium-containing ...

    Abstract. A fast protein liquid chromatographic method for purification of selenium-containing phycocyanin (Se-PC) from selenium-enriched Spirulina platensis was described in this study. The purification procedures involved fractionation by ammonium sulfate precipitation, DEAE-Sepharose ion-exchange chromatography and Sephacry S-300 size ...

  • Selenium-containing BODIPY dyes as photosensitizers for ...

    In this study, two new selenium-containing BODIPY dyes were synthesized as photosensitizers for triplet–triplet annihilation upconversion (TTA-UC). Bis(phenylselanyl)-BODIPY 1 absorbed visible light at 518 nm (εmax = 7.84 × 104 cm−1 M−1) and exhibited fluorescence at …

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