(n.) A salt of chromic acid containing two equivalents of the acid radical to one of the base; -- called also bichromate.
Example Sentences:
(1) Solutions of sodium dichromate were administered to Sprague Dawley rats by intratracheal instillations over a period of 30 months.
(2) The most frequent sensitizers observed included nickel sulphate, cobalt, Kathon CG, perfumes, potassium dichromate and balsam of Peru.
(3) Potassium dichromate and chromium chloride were analyzed for their ability to induce mitotic gene conversion and point reverse mutation in D7 diploid strain of S. cerevisiae.
(4) The best fixatives for this purpose were formol dichromate, periodate-lysine-paraformaldehyde (PLP) and a novel fixative formed from the addition of a dichromate solution to PLP.
(5) Six patients took dichromate solutions as rectal enemas, 2 were left with impaired renal function and 1 required a permanent colostomy as a result of extensive peri-anal necrosis.
(6) Each of 31 chromate-allergic patients was given one tablet containing 7.1 mg potassium dichromate, plus a placebo tablet.
(7) of solutions of acid potassium dichromate and alkaline potassium chromate.
(8) The coefficient of variation for potassium dichromate after storage at 4 degrees C was 4.6324% and at room temperature 9.6334%.
(9) In vivo administration of sodium dichromate onto the inner shell membrane of 14 day chick embryos resulted in the formation of a persistent chromium(V) species in liver cells (g = 1.987).
(10) Prior to the oral challenge all the patients were patch tested with nickel sulphate, cobalt chloride and potassium dichromate after adhesive tape stripping.
(11) Chromium nitrate and chloride release and that of potassium dichromate was determined and converted to the chromium content in the concentrations used for skin tests.
(12) X-ray micro-analysis of glutaraldehyde-dichromate-fixed sections was used to discriminate noradrenaline-containing nerves.
(13) The mutagenicity of sodium dichromate in the Ames test was decreased as a consequence of chromium(VI) reduction by tissue postmitochondrial (S-9 or S-12) fractions from untreated rats with the following rank of efficiency: liver; kidney; and lung.
(14) In vivo treatment with the drug enhanced detoxication by liver and lung S-12 fractions of direct-acting mutagens (ICR 191, epichlorohydrin, 4-nitroquinolino-N-oxide and dichromate) and counteracted opposite effects triggered by administration of GSH depletors.
(15) Actual rates of macromolecular syntheses have been calculated by taking into account the induced changes of soluble precursor concentrations; sucn normalized rates point out that dichromate induces a sudden blockage of DNA replication, whereas RNA and protein syntheses are secondarily inhibited.
(16) Brucella milk ring tests (BMRT's) were performed on fresh herd milk samples and pooled samples, preserved at a processing factory with potassium dichromate.
(17) These results suggest that dichromate possesses a characteristic dual action on cellular metabolism, which might be related to its metabolic fate.
(18) Most of the oxidants tested (K-dichromate, FeCL3, H2O2, O2, and chloroperbenzoic, ascorbic, performic, and periodic acids) rendered the various myelin constituents less extractable than the constituents of unoxidized control homogenates.
(19) An 18-year-old girl developed acute renal failure 24 hr after ingestion of potassium dichromate.
(20) Dichromate first stimulates and then inhibits nucleoside (mostly thymidine) uptake, whereas amino acid uptake is immediately inhibited.
Ion
Definition:
(n.) One of the elements which appear at the respective poles when a body is subjected to electro-chemical decomposition. Cf. Anion, Cation.
Example Sentences:
(1) Structure assignment of the isomeric immonium ions 5 and 6, generated via FAB from N-isobutyl glycine and N-methyl valine, can be achieved by their collision induced dissociation characteristics.
(2) It has recently been suggested that procaine penicillin existed in solution in vitro and in vivo as a "procaine - penicillin" complex rather than as dissociated ions.
(3) The transport of potassium ions through membranes of red blood cells was examined in in bitro experiments using a CMF of 4500 oersted.
(4) of PLA2 caused marked degranulation of mast cells in the rat mesentery which was facilitated by addition of calcium ion (10 mM) but antagonized by pretreating with three antiinflammatory agents.
(5) Results suggest that Cd-MT is reabsorbed and broken down by kidney tubule cells in a physiological manner with possible subsequent release of the toxic cadmium ion.
(6) The influence of calcium ions on the electrophoretic properties of phospholipid stabilized emulsions containing various quantities of the sodium salts of oleic acid (SO), phosphatidic acid (SPA), phosphatidylinositol (SPI), and phosphatidylserine (SPS) was examined.
(7) Finally, it could be observed that elevated osmotic pressures reduced the lysis of isolated secretory granules when bicarbonate ions were present in the incubation medium.
(8) Since intracellular Ca2+ seems to play a role in stimulus-secretion coupling and ion movements, several aspects of Ca2+ homeostasis have been investigated in CF.
(9) An investigation of the constitutive ions of salts revealed that their effects were additive only in the case of salts that have no specific binding capability.
(10) Resorption of calcium and depositon of inorganic phosphates in the implanted ceramics suggested that ions were being exchanged with the body fluids.
(11) Dose distributions were evaluated under thin sheet lead used as surface bolus for 4- and 10-MV photons and 6- and 9-MeV electrons using a parallel-plate ion chamber and film.
(12) In voltage-clamp experiments the ion current flowing through the channels was homogeneous indicating a defined conformation and a uniform size.
(13) Previous evidence includes changes in Ca2+ fluxes and intracellular activity, membrane potential changes, and effects of ion-channel blockers.
(14) Excessive accumulation of hydrogen ions in the brain may play a pivotal role in initiating the necrosis seen in infarction and following hyperglycemic augmentation of ischemic brain damage.
(15) Measurements of acetylcholine-induced single-channel conductance and null potentials at the amphibian motor end-plate in solutions containing Na, K, Li and Cs ions (Gage & Van Helden, 1979; J. Physiol.
(16) EGTA was ineffective in removing calmodulin from particulate preparations, but treatment with the tervalent metal ion La3+ resulted in a loss of up to 98% of calmodulin activity from these preparations.
(17) The present results suggest that TMB-8 blocks twitches by preventing the release of Ca++ ions bound to the intracellular surface of the t-tubular membrane which is often called the store of 'trigger-calcium' ions.
(18) Blockade of beta-adrenoceptors interferes with haemodynamic and metabolic adaptations and ion balance during dynamic exercise.
(19) Mechanosensitive ion channels may play a key role in transducing vascular smooth muscle (VSM) stretch into active force development.
(20) PFP-MAM is separated by capillary GC and identified mass spectrometrically by selected ion monitoring (SIM).