(n.) A gaseous hydrocarbon, C2H6, forming a constituent of ordinary illuminating gas. It is the second member of the paraffin series, and its most important derivatives are common alcohol, aldehyde, ether, and acetic acid. Called also dimethyl.
Example Sentences:
(1) Five structurally representative nitrosamino-ethanals (R-N(NO)CH2CHO, R = 4-ClC6H4-, CH3-, nBu-, tBu-, HOCH2CH2-) have been synthesized.
(2) These parameters are compared with those of various model groups and compounds: CH2, peptide, methane, ethane, and the 1--13 N-terminal fragments of ribonuclease.
(3) A sensitive radioimmunoassay (RIA) for the specific determination of 1-(4-methanesulphonamidophenoxy)-2-[N-(4-methanesulphonamido -phenethyl)-N- methylamino]ethane (UK-68,798), a novel class III antidysrhythmic agent, in human plasma is described.
(4) To measure [Ca2+]i, fluorine NMR spectra were acquired in a separate group of hearts loaded with the Ca2+ indicator 5F-BAPTA [5,5'-difluoro derivative of 1,2-bis-(o-aminophenoxy)ethane- N,N,N',N'-tetraacetic acid].
(5) We determined ethane production rates in rats (group I) ventilated with hydrocarbon-free air (HFA) before and after exsanguination.
(6) Acid p-nitrophenyl phosphatase in rat calvaria extract behaved in the same way as the liver enzyme and was also strongly inhibited by dichloromethylene diphosphonate, but not by ethane-1-hydroxy-1, 1-diphosphonate.
(7) Experiments using purified fatty acids revealed that ethane was preferentially produced from docosahexaenoic and linolenic, and pentane from linoleic and arachidonic acids.
(8) 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.
(9) Surprisingly, when the increase in [Ca2+]i during stimulation of oscillations was prevented by loading the cells with 1,2-bis(2-aminophenoxy) ethane-N,N,N',N'-tetraacetic acid, a persistent activation of Ca2+ release and Ca2+ efflux occurred.
(10) The purpose of this study was to test the effectiveness of various doses of disodium ethane-1-hydroxy-1,1-diphosphonate (EHDP) in an experimental rabbit model of athero-arteriosclerosis designed by Hass et al.
(11) Pesticidal contaminants in both placenta and milk were 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane (p,p'-DDT), its metabolites 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (p,p'-DDE) and 1,1-dichloro-2,2-bis(p-chlorophenyl)ethane (p,p'-DDD), alpha, beta, gamma - isomers of benzene hexachloride (BHC) and aldrin.
(12) In adult myocytes, when EGTA (10 or 20 mM) or bis(o-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid (BAPTA, 10 mM) were included in the pipette solution, contractions were rapidly abolished, while a small (4 mV) shift of f infinity to more positive potentials was seen.
(13) Ethane-1-hydroxy-1,1-diphosphonate (EHDP) was the most effective diphosphonate in reducing myocardial and vascular degeneration and calcification, whereas diphosphonates such as ethane-1-amino-1,1-diphosphonate (EADP) and hydroxymethylene diphosphonate (HMDP) had little or no effect compared to saline controls.
(14) In vivo lipid peroxidation was monitored by measuring exhaled ethane from the animals.
(15) 3.25pm GMT Ethan Dean-Richards emails re the only goal of the game: The free-kick that led to the goal was Tiote's fifth or sixth 'tactical' foul today.
(16) The composition of 99mTc-ethane-1-hydroxy-1, 1-diphosphonate complexes, prepared with the reducing agent NaBH4 and by electrolytic reduction, was analysed by reversed-phase ion-pair chromatography and soft-gel permeation chromatography.
(17) While allowing the animal to breathe a mixture of 0.1% CO in air, normal saline, which contained appropriate amounts of six inert gases such as SF6, ethane, cyclopropane, halothane, ether and acetone, was infused at a constant rate through a peripheral vein.
(18) To investigate the role of Ca2+ we have artificially increased the calcium buffering capacity of the rod by using a patch pipet to incorporate the calcium buffer 1,2-bis(o-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid (BAPTA) into the rod cytoplasm.
(19) A single dose of ethane dimethane sulphonate (EDS) given to adult male rats has a specific destructive effects on Leydig cells, which are removed from the intertubular area by macrophages.
(20) Production of MDA was greater in mouse kidney than liver and correlated better with the exhalation of ethane.
Ethyl
Definition:
(n.) A monatomic, hydrocarbon radical, C2H5 of the paraffin series, forming the essential radical of ethane, and of common alcohol and ether.
Example Sentences:
(1) This is the first clear example of activation of the K-ras gene by ethylating agents in a rodent lung tumor system.
(2) On the other hand, the hydrophilic reagents, 1-ethyl-3-[3-(dimethylamino)-propyl]carbodiimide and N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline, did not affect organic cation transport.
(3) The drug is extracted from serum or urine with ethyl acetate, separated by TLC, and determined by fluorescence quenching densitometry.
(4) Hemoglobin A reductively ethylated at the alpha-amino groups eluted on CM-52 ahead of unmodified hemoglobin A, and hemoglobin A reductively ethylated at the epsilon-amino groups.
(5) We have characterized the effects of adenosine, the A1-receptor agonist N6-(L-2-phenylisopropyl)-adenosine (PIA) and the A2-receptor agonist 5'-(N-ethyl)-carboxamido-adenosine (NECA), in isolated human pulmonary vessels.
(6) In comparison to rat pancreas, [D-Phe6]BN-(6-13)ethyl ester, Ac-GRP-(20-26)ethyl ester, [D-Phe6,Cpa14, psi 13-14]BN-(6-14), [Leu14, psi 13-14]BN, and [Leu14, psi 9,10]BN had a 10,000-, 2,940-, 1,425-, 122-, and 4-fold, respectively, weaker affinity for BN receptors.
(7) Imported sweets and liqueurs were homogenized and extracted with ethyl acetate.
(8) These results, in addition to binding studies with the active site titrant N2-(5-dimethylaminonaphthalene-1-sulfonyl)arginine N-(3-ethyl-1,5-pentanediyl)amide, indicate that binding interactions at the catalytic site of Thrombin Quick I are unaltered.
(9) Plasma samples are extracted at pH 9.6 with ethyl acetate after the addition of sodium bisulphite and the internal standard oxprenolol.
(10) Ethyl oleate-hydrolyzing activity was about one-eighth of the synthesizing activity.
(11) We have used a variety of chemical and enzymatic probes: dimethylsulfate, N-cyclohexyl-N'-(2-(N-methylmorpholino)-ethyl)-carbodiimide-p-tolu enesulfonate) , RNase T1 and RNase V1.
(12) The digestive juice showed no action on acetyl-L-tyrosine and benzoyl-L-arginine ethyl esters.
(13) The effect of subchronic feeding of 2,2'-oxamidobis[ethyl 3(3,5-di-tert-butyl-4-hydroxyphenyl) propionate], Naugard XL-1 (CAS number 70331-94-1), was studied in beagle dogs.
(14) After about 3 weeks of culture, N-ethyl-N-nitrosourea-pretreated fetal rat brain cells showed focal proliferation of neural cells on an underlayer of flat, epithelioid cells.
(15) [1-(beta,beta-Pentamethylene-beta-mercaptopropionic acid),2-(O-ethyl)-D- tyrosine,4-valine,9-desglycine]arginine-vasopressin (SK&F 101926, 1), a potent in vivo and in vitro vasopressin V2 receptor antagonist, was recently tested in human volunteers and shown to be a full antidiuretic agonist.
(16) On the basis of spectral and chemical evidence, pedicularioside E and F were identified to be 1'-O-beta-D-(3-methoxy-4-hydroxy-beta-phenyl)-ethyl-6'-O-feruloyl- alpha-L-(2-acetyl)-rhamnosyl-(1----3')-4'-acetylglucopyranoside and shanzhisin methyl ester cellobioside, respectively.
(17) Cross-linking of the one-to-one complex of actin and depactin with 1-ethyl-3-[3-(dimethylamino)propyl]-carbodiimide (EDC) generated two types of cross-linked products with slightly different apparent molecular weights, denoted as 60KU and 60KL.
(18) ICI 74 205, a synthetic analogue of prostaglandin F2 alpha (PGF2a) with an alkyl side chain extended by an ethyl group, was administered intravenously in 6 patients using normal saline as the vehicle.
(19) Enzyme activity is inhibited by p-chloromercuriphenyl sulfonic acid, quinacrine dihydrochloride, and N-ethyl-maleimide.
(20) Quantitative studies show that the amount of compound solubilized is proportional to the LPC concentration and that solubilization increases in the order ethyl, n-propyl and n-butyl ester.