Results 141 to 150 of about 1,310 (184)
Some of the next articles are maybe not open access.
The metabolism of arsenite and arsenate by the rat
Fundamental and Applied Toxicology, 1983Differences in distribution and metabolism of arsenite and arsenate were studied in rats and in rat liver and kidney slices and hepatocytes. Five minutes after i.v. administration of 4.8 nmol arsenite or arsenate to male Sprague-Dawley rats, blood levels of arsenic were only 10 percent of the initial dose.
S, Lerman, T W, Clarkson
openaire +2 more sources
Метафраст, 2019
В статье осуществлён полный обзор историографии и источников по арсенитскому расколу (1265-1310). Источники оцениваются с точки зрения их подлинности, достоверности, информативности и объективности. Они разделены на 5 групп: исторические, проарсенитские, антиарсенитские, документы о мире 1310 г. и другие источники.
openaire +1 more source
В статье осуществлён полный обзор историографии и источников по арсенитскому расколу (1265-1310). Источники оцениваются с точки зрения их подлинности, достоверности, информативности и объективности. Они разделены на 5 групп: исторические, проарсенитские, антиарсенитские, документы о мире 1310 г. и другие источники.
openaire +1 more source
A plasmid-encoded arsenite pump produces arsenite resistance in Escherichia coli
Biochemical and Biophysical Research Communications, 1984The arsenate resistance operon of R-factor R773, a conjugative resistance plasmid, has two functional regions, a promoter-proximal region encoding resistance to arsenite and antimonate, and a promoter-distal one encoding arsenate resistance. Cells bearing arsenite resistance plasmids exhibited reduced accumulation of 74AsO2-.
B P, Rosen, M G, Borbolla
openaire +2 more sources
Nitric oxide production by arsenite
Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis, 2003Arsenic can either enhance or reduce nitric oxide (NO) production, depending on the type of cell, the species and dose of arsenical tested. The mechanisms of how arsenic increases or decreases NO production remain unclear. Because NO is associated with many pathological conditions, it is conceivable that in those arsenic-target tissues, the NO ...
Jia-Ran, Gurr +5 more
openaire +2 more sources
Biosensor for Arsenite Using Arsenite Oxidase and Multiwalled Carbon Nanotube Modified Electrodes
Analytical Chemistry, 2007A biosensor for arsenite has been developed using molybdenum-containing arsenite oxidase, prepared from the chemolithoautotroph NT-26 that oxidizes arsenite to arsenate. The enzyme was galvanostatically deposited for 10 min at 10 microA onto the active surface of a multiwalled carbon nanotube modified glassy carbon electrode.
Male, Keith B. +3 more
openaire +2 more sources
Diversity of inorganic arsenite biotransformation
Biological Trace Element Research, 1999Biotransformation of inorganic arsenic in mammals is catalyzed by three serial enzyme activities: arsenate reductase, arsenite methyltransferase, and monomethylarsonate methyltransferase. Our laboratory has purified and characterized these enzymes in order to understand the mechanisms and elucidate the variations of the responses to arsenate/arsenite ...
S M, Healy +3 more
openaire +2 more sources
The inhibition of acetylcholinesterase by arsenite and fluoride
Archives of Biochemistry and Biophysics, 1983The effect of fluoride on the rate of reaction of acetylcholinesterase with arsenite, on the rate of dissociation of the enzyme-arsenite complex, and on the equilibrium between enzyme and arsenite was studied. Fluoride decreases the rate of the reaction between acetylcholinesterase and arsenite and changes the apparent equilibrium dissociation constant
J D, Page, I B, Wilson
openaire +2 more sources
Mass Poisoning By Sodium Arsenite
Journal of Toxicology: Clinical Toxicology, 1991An acute massive epidemic of arsenic poisoning in Argentina involved 718 subjects. Urine samples were obtained from 307. The 49 with urine arsenic 76-500 micrograms/dl and 12 with urine arsenic greater than 500 micrograms/dL received dimercaprol treatment.
O. E. Roses +14 more
openaire +2 more sources
Arsenite and arsenate levels in wine
Bulletin of Environmental Contamination and Toxicology, 1977Arsenic is receiving renewed attention because it is released to the atmosphere by coal-fired power plants as well as by smelters and agricultural pesticides. A portion of this arsenic that accumulates on agricultural land may be taken up by plants, animals, and ultimately by man.
openaire +2 more sources