(n.) An electro-negative element, or the element which, in electro-chemical decompositions, is evolved at the anode; -- opposed to cation.
Example Sentences:
(1) Both SAA and non-SAA enhanced ammonium excretion but only non-SAA enhanced organic anion excretion, an indicator of incomplete oxidation of organic acids.
(2) In the presence of high external Cl, a component of outward current that was inhibited by the anion channel blocker diphenylamine-2-carboxylate (DPC) appeared in 70% of the cells.
(3) Cell viability, ability to generate superoxide anion, and chemotaxis were found to be unaltered both before and after labeling.
(4) Interaction of viable macrophages with cationic particles at 37 degrees C resulted in their "internalization" within vesicles and coated pits and a closer apposition between many segments of plasmalemma than with neutral or anionic substances.
(5) In general, enzyme activity was strongly reduced by heavy metal inorganic cations; less strongly by organometallic cations, some anions, and certain pesticides; and weakly inhibited by light metal cations and organometallic and organic compounds.
(6) The order in which anions supported uptake was Cl- = SCN- greater than F- greater than NO3- = SO2(-4) for beta-alanine, whereas it was SCN- greater than F- = Cl- = NO3- greater than SO2(-4) for L-alpha-alanine.
(7) Moreover, it is the recombinant p70 polypeptides of slowest mobility that coelute with S6 kinase activity on anion-exchange chromatography.
(8) Superoxide anion (O2.-) was photogenerated upon illumination of riboflavin in fluorescent light.
(9) At hypothyroid patients there is an ADP excess which is degenerated to xanthine, the substrate of xanthine oxidase resulting in toxic anion superoxide and UA.
(10) The sigmoidal shape of the curve of rate constant vs mole percent anionic lipid is consistent with a positively cooperative effect of the negative surface charge.
(11) The changes included swelling, blunting, and flattening of epithelial foot processes, were accompanied by decreased stainability of glomerular anionic sites, and were largely reversed by subsequent perfusion with the polyanion heparin.
(12) The granules of human large granular lymphocytes have been reported to contain, in addition to perforin, a soluble HRF activity that can be eluted from anion-exchange columns at 115 mM NaCl.
(13) The channels studied here were more selective for monovalent cations than anions, but also showed some permeability to anions and larger electrolytes, suggesting a large functional pore diameter.
(14) The reduction of cytochrome c was found to be sensitive to both anaerobiosis and superoxide dismutase, suggesting the involvement of superoxide anions with this electron acceptor.
(15) The porins are a class of voltage-dependent, anion-selective, channel-forming proteins located in the outer mitochondrial membrane (OMM).
(16) In 254 findings of the acid-base balance ions and proteins, the authors evaluated mutual relations between the acid-base balance and calculation from the anion column.
(17) Proceeding from the observation that organic anions bound to albumin have hepatic extraction fractions that are unexpectedly high, we have studied a distributed model that accounts for this phenomenon by invoking sites on the cell surface that catalyze the dissociation of albumin-anion complexes.
(18) 6) The subunits alpha and beta of bovine follitropin were obtained by incubation in acidic urea, the chains being then separated by anion exchange chromatography.
(19) Here we report that phenol hydroxylation to hydroquinone is also catalyzed by human myeloperoxidase in the presence of a superoxide anion radical generating system, hypoxanthine and xanthine oxidase.
(20) The oxidation of the anion radical intermediate by O2 to the parent nitro compound is proposed to account for the well-known O2 inhibition of microsomal nitroreductase.
Arsenite
Definition:
(n.) A salt formed by the union of arsenious acid with a base.
Example Sentences:
(1) The operon was found to have two functional regions, the promoter-proximal region encoding resistance to arsenite and antimonate and the promoter-distal region encoding arsenate resistance.
(2) of 90K, 68-72K, 41-47K, and 36 K. Arsenite-treated cells produced similar hsps including a 30k protein not produced by other forms of stress.
(3) Chinese hamster ovary (CHO) cells treated for either 1 h with 100 microM sodium arsenite (ARS) or 10 min at 45.5 degrees C became thermotolerant to a test heat treatment at 43 degrees C administered 6 or 12 h later, respectively.
(4) Arsenite-induced tolerant cells did not show an enhanced rate of recovery from the heat-induced intranuclear protein aggregation.
(5) Furthermore, we observed cross-resistance and self-tolerance with three seemingly unrelated stimuli (diamide, heat, and sodium arsenite).
(6) Micronuclei were induced starting from 0.7 microM arsenite.
(7) This effect implies that arsenite only slightly inhibited the incision of UV-induced DNA adducts.
(8) Iodoacetate and arsenite inhibited the enzyme to a smaller extent.
(9) The resistance pattern included arsenate, arsenite, and antimonate ions.
(10) Sodium arsenite had no effect on the survival of a recA mutant, WP10.
(11) First-time measurements of the potentially toxic inorganic species of arsenic (arsenite and arsenate) have been obtained in fine (less than 2.5 microns AD) and coarse (greater than 2.5 microns AD) atmospheric particles in the Los Angeles area.
(12) Also, the enzyme could be reactivated by arsenite and high concentrations of cyanide.
(13) Sodium arsenite was virtually ineffective as a convertogen but gave a positive result for reversion.
(14) We find that sodium arsenite inhibits only the DNA binding of those complexes that require factor.
(15) On the other hand, the coadministration of arsenite (5 ppm As) with the two higher levels of TMSe+ resulted in significant tumor suppression.
(16) l-1 sodium arsenite in drinking water for 2, 4, 8, 16 and 32 days.
(17) Post mortem reduction of arsenate to arsenite was found to occur rapidly in fish tissue.
(18) Se); this combination was nearly as effective as selenite, although either trimethylselenonium or arsenite alone was inactive.
(19) Arsenite forms a tight complex with these vicinal dithiols since the removal of loosely associated arsenite by gel exclusion chromatography did not reverse the inhibition of steroid binding.
(20) Inactivation of chicken liver xanthine dehydrogenase by arsenite is reflected in the molybdenum electron paramagnetic resonance signal at g = 1.97.