(n.) A colorless, gaseous hydrocarbon, C2H4, forming an important ingredient of illuminating gas, and also obtained by the action of concentrated sulphuric acid in alcohol. It is an unsaturated compound and combines directly with chlorine and bromine to form oily liquids (Dutch liquid), -- hence called olefiant gas. Called also ethene, elayl, and formerly, bicarbureted hydrogen.
Example Sentences:
(1) 3,4-Dihydroxyphenyl ethylene glycol (DOPEG), a metabolite of noradrenaline (NA), was estimated in CSF of 30 patients of depression diagnosed by the criteria of American Psychiatric Association in DSM-III; and compared with levels in 10 non-depressed individuals who served as controls.
(2) Depletion of extracellular Ca2+ by EGTA [ethylene glycol-bis(beta-aminoethyl ether)-N,N,N'N'-tetraacetic acid] attenuated both [Ca2+]i increase and superoxide production induced by particles.
(3) Orotic acid inhibited, dose-dependently DNA synthesis in hepatocytes induced by epidermal growth factor, transforming growth factor alpha, hepatocyte growth factor, acidic fibroblast growth factor, or plasma from rats exposed to various liver cell-proliferative stimuli, such as two-thirds partial hepatectomy, lead nitrate, cyproterone acetate, ethylene dibromide, or a diet deficient in choline.
(4) 1-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-3-(2-chloroethyl)-3- nitrosourea hydrochloride (ACNU) causes chloroethylation of DNA strand followed by cross linking through an ethylene bridge.
(5) Chlorinated ethylenes are metabolized in mammals, as a first step, to epoxides.
(6) Therefore, an experimental study was undertaken to assess the suitability of an expanded PTFE (Polytetrafluoro-ethylene) as a microvascular graft.
(7) Solid-phase adsorbents were compared in their trapping efficiencies for dichloromethane (DCM), ethylene dibromide (EDB), 4-nitroblphenyl (4-NB), 2-nitrofluorene (2-NF), and fluoranthene (FI).
(8) Therapeutic application of drugs containing propylene glycol 1.2 as a solvent may distort the results of forensic chemical detection of ethylene glycol from its oxidation products.
(9) It was found that the stress at a given strain was increased by treatment with ethylene oxide, buffered formalin, and tissue culture solution and decreased by treatment with antibiotics.
(10) Practical examples illustrate the possibility of ethylene glycol determination by gas chromatography in the presence of propylene glycol.
(11) Enzymes that pelleted more in myogen preparations than as individual purified enzymes in the presence of poly(ethylene glycol) and the absence of F-actin were tested for specific enzyme-enzyme associations, several of which were observed.
(12) Subacute (10-day) and subchronic (90-day) toxicity studies of ethylene glycol (EG) were conducted in male and female Sprague-Dawley rats to provide the U.S. Environmental Protection Agency's (EPA) Office of Drinking Water with toxicity data for final preparation of a Health Advisory for the chemical.
(13) Two-phase systems consisting of water, dextran and poly(ethylene glycol) have been used for partition of membranes obtained from Torpedo marmorata electric organ.
(14) Rats have been exposed in a closed system to the chlorinated ethylenes vinyl chloride and trichloroethylene and to carbon tetrachloride as a reference compound.
(15) For two chemicals, dichlorobenzidine and ethylene thiourea, there is not enough epidemiological information to make a useful comparison with rodent bioassay data.
(16) We examined the effect of ethylene glycol (EG) concentration, in water, on O2 sensitivity, stirring effect, in vitro drift, in vitro response time, behaviour on the skin of newborn infants and in vivo response time.
(17) As a prerequisite for preparing bispecific antibody conjugates containing anti-tumor and anti-metal chelate binding sites that can be used for pretargeted immunoscintigraphy, monoclonal antibodies (Mabs) have been raised against an octahedral metal chelate synthetized from gallium (Ga) and the hexadentate ligand N,N'bis[2-hydroxy 5-(ethylene beta carboxy) benzyl] ethylenediamine N,N' diacetic acid (Ga-HBED-CC).
(18) In heavily mineralized bone matrix, the periodic pattern of collagen fibrils was retained, and the electron density of mineralized matrix in freeze-substituted and unstained sections which had been floated on ethylene glycol was greater than that encountered in sections processed in aqueous reagents.
(19) Paraquat (1,1'-dimethyl-4,4'-bipyridylium) and diquat (1,1'-ethylene-2,2'-bipyridylium) are the two most widely used bipyridylium herbicides today.
(20) Moreover, in patients dialysed using ethylene oxide sterilized equipment, anaphylactoidal reactions were observed.
Stilbene
Definition:
(n.) A hydrocarbon, C14H12, produced artificially in large, fine crystals; -- called also diphenyl ethylene, toluylene, etc.
Example Sentences:
(1) Cytosolic epoxide hydrolase (cEH) activity has been determined in liver and various extrahepatic tissues of male Sprague-Dawley rats using trans-stilbene oxide (TSO) and trans-ethylstyrene oxide (TESO) as substrates.
(2) analysis, and correlated with the enzymic glutathione conjugation of trans-stilbene oxide and with Western blotting of cytosols, using a monoclonal anti-(Class Mu GST) antibody.
(3) A new antiestrogenic, mammary tumor inhibiting 2-phenylindene was developed by the use of structural elements that we have shown to decrease estrogenic side effects but to increase antiestrogenic activity and retain the antitumor effect of certain stilbenes.
(4) A more specific reuptake blocker (the stilbene isothiocyano derivative (SITS) does not completely inhibit ascorbate efflux, suggesting that the glutamate uptake which is coupled to ascorbic acid exchange is both neuronal and glial in nature.
(5) About 10% of the protein is present at the plasma membrane as determined by immunoprecipitation of covalently bound 4,4'-diisothiocyano-2,2'-disulfonic acid stilbene (DIDS) with anti-DIDS antibody.
(6) Assays were optimized for time, pH, and temperature, using trans-stilbene oxide (TSO) and cis-stilbene oxide (CSO) as substrates for cEH and mEH, respectively.
(7) Compounds such as butylated hydroxytoluene, catechol, chlorobenzene, hydroquinone, potassium chloride, phenol, cis-stilbene, trans-stilbene, and toluene did not elicit positive responses in either strain.
(8) The activity of the channels remains unchanged after addition of 10 mM EGTA to the cytoplasmic face of the membrane, but it is irreversibly inhibited by application of 1 mM 4-acetamido-4'-isothiocyano-2,2'-disulphonic acid stilbene (SITS).
(9) Styrene 7,8-oxide and benzo[a]pyrene 4,5-oxide were used as substrates for microsomal epoxide hydrolase and trans-stilbene oxide for the cytosolic form of this enzyme.
(10) These possibilities were examined using basolateral addition of the disulfonic stilbene (4,4'-diisothiocyanostilbene-2,2'-disulfonate (DIDS).
(11) Rabbits were pretreated with phenobarbital, 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (DDT), 3-methylcholanthrene, beta-naphthoflavone, Aroclor 1254, ethanol, trans-stilbene oxide, pregnenolone-16 alpha-carbonitrile, or clofibric acid.
(12) The outwardly rectified chloride channel of secretory epithelial cells is inhibited by disulfonic stilbene (DS) compounds such as 4,4'-diisothiostilbene-2,2'-disulfonic acid (DIDS) [R. J. Bridges, R. T. Worrell, R. A. Frizzell, and D. J. Benos, Am.
(13) The effect of 4-acetamido-4'-iso-thiocyanato-stilbene-2,2'-disulphonic acid on volume reabsorption could not be explained by carbonic anhydrase inhibition because there was no increase in the total CO(2) concentration of the collected fluids.
(14) 4,4'-Diisothiocyano-2,2'-disulphonic acid stilbene (DIDS), an anion channel blocker, caused a concentration-dependent inhibition of granule enzyme release.
(15) We found that 1) acidification of the epithelium by means of 5% CO2 and the protonophores carbonyl cyanide m-chlorophenylhydrazone (CCCP) and nigericin inhibited urea influx; 2) alkalinization of the epithelium by means of the disulfonic stilbene DIDS and by removal of serosal chloride increased urea influx; 3) inhibition of the proton-translocating ATPase of the skin by means of 1,3-dicyclohexylcarbodiimide (DCCD), N-ethylmaleimide (NEM), and sodium orthovanadate inhibited urea transport; 4) urea influx was unaffected by alkalinizing the external medium to 8.5 or by acidifying to 6.5; it was significantly suppressed by a mucosal pH of 5.5.
(16) When a fluorescent stilbene was added to epithelial plasma membrane suspension the emission spectrum showed a broad peak containing overlapping emissions resulting from different adducts.
(17) Displacement of the protein-bound stilbene by loop diuretics could not be quantitated on the nitrocellulose transfer strips for this protein.
(18) The mode of action of 3,5-dihydroxy-4-ethyl-trans-stilbene (ES), an antibiotic produced by Xenorhabdus luminescens symbiotically associated with an entomopathogenic nematode, was investigated.
(19) The cytochrome P-450-mediated reactions of the synthetic stilbene estrogen (E)-diethylstilbestrol (DES) and of 2-hydroxyestradiol have been investigated in vitro.
(20) The effect of CMBS could not be suppressed by 20 mM glucose, but in the presence of 1 mM 4-acetamido-4'-isothiocyano-stilbene-2,2'-disulphonic acid (SITS), and is independent of the glucagon content of islets.