What's the difference between propane and propine?

Propane


Definition:

  • (n.) A heavy gaseous hydrocarbon, C3H8, of the paraffin series, occurring naturally dissolved in crude petroleum, and also made artificially; -- called also propyl hydride.

Example Sentences:

  • (1) Stopped-flow studies of oxidation of butan-1-ol and propan-2-ol by NAD(+) in the presence of Phenol Red and large concentrations of yeast alcohol dehydrogenase give no evidence for the participation of a group of pK(a) approx.
  • (2) Young female rats dosed with 1-bromo[1-14C]propane excrete the same metabolites as adult females but in different relative proportions.
  • (3) The performance of a commercial double-propane-jet freezer (Balzers QFD 101) has been assessed, for rapid freezing of fresh tissues in freeze-etch work.
  • (4) The ryanodine receptor protein of sheep cardiac muscle sarcoplasmic reticulum membranes functions as a ligand-regulated ion channel following solubilization with the zwitterionic detergent CHAPS (3-[(3-cholamidopropyl)-dimethylammonio]-1- propane sulphonate); purification by density gradient centrifugation, reconstitution into proteo-liposomes and incorporation into planar phospholipid bilayers.
  • (5) The biliary excretion of metabolites of 1,2-epoxy-3-(p-nitrophenoxy)-propane is described.
  • (6) There is no detectable activity with 1,2-epoxy-3-(p-nitrophenoxy)propane, ethacrynic acid, p-nitrobenzyl chloride or p-nitrophenyl acetate.
  • (7) Clinical experience is reported with bis-dioxopiperazine propane (ICRF 159) in 20 children with acute leukaemia in relapse.
  • (8) A fast freezing technique using liquid propane was used to obtain frozen solutions of methemoglobin at pH 7.
  • (9) Substitution of "strong" salts in the sample zone with salts formed by weak acids and bases, e.g.. Tris-acetate, Tris-glycinate, Good's buffers such as (N-[2-acetamido]-2-iminodiacetic acid (ADA), (2-[(2-amino-2-oxoethyl)-amino] ethanesulfonic acid (ACES), (3-[N-morpholino]propane sulfonic acid (MOPS), essentially abolishes both phenomena, oxidation and irreversible denaturation.
  • (10) Results of the demonstration tests show that the system, which uses liquefied propane, successfully removed PCBs from contaminated sediments in New Bedford Harbor.
  • (11) The capacity of carnosine to decrease free radical-induced damage was evaluated using the oxidation of brain homogenates, the 2,2'-azobis-2-amidino propane-induced oxidation of erythrocyte ghost membranes, the radiation induced inactivation of horseradish peroxidase and the 2,2'-azobis-2-amidino propane-induced inactivation of lysozyme.
  • (12) Lignin peroxidase also hydroxylated 1-(4'-ethoxy-3'-methoxyphenyl)propane II at the alpha-position to yield 1-(4'-ethoxy-3'-methoxyphenyl)-1-hydroxypropane VI under anaerobic conditions in the presence of mCPBA.
  • (13) Derivatives of the antiallergic drug cromolyn [disodium 5,5'-[(2-hydroxy-1,3-propanediyl)-bis(oxy)]bis [4-oxo-(4H-1-benzopyran)-2- carboxylate]], which can be conjugated covalently at the propane 2-position to macromolecules and to insoluble matrices, were synthesized.
  • (14) The effect of two nitroimidazoles, 2-acetoxyl-1,3-bis-(2'-methyl-4'-nitro-1'-imidazolyl)propane (Rs-029) and 2-acetoxy-1-(2'-methyl-4'-nitro-1'-imidazolyl)-3-(2''-methyl-5''-nitro- 1- nitroimidazolyl)propane (Rs-034) on ATP level and erythrocyte membrane ATP-ase activity was studied.
  • (15) The animals were decapitated and, the pituitary glands were removed, mounted on tissue holders and frozen in liquified propane.
  • (16) macrosporus is a unique acid endopeptidase that is insensitive (or less sensitive) to specific inhibitors of ordinary acid or aspartic proteinases, such as pepstatin, diazoacetyl-DL-norleucine methyl ester, and 1,2-epoxy-3-(p-nitrophenoxy)-propane.
  • (17) Rapid quenching methods such as plunging a grid into liquid propane cooled by LN2 or collision with a clean surface of a copper block cooled to LHe temperature were used to avoid ice crystal formation.
  • (18) Considerable activity was obtained with 1-chlorl-2,4-dinitrobenzene and low activity with 3,4-dichloro-1-nitrobenzene, but no enzymic reaction was detectable with sulphobromophthalein 1,2-epoxy-3-(p-nitrophenoxy)propane of trans-4-phenylbut-3-en-2-one as substrates.
  • (19) When porcine brain membranes were solubilized with digitonin or 3-[(3-cholamidopropyl)dimethylammonio]-1-propane sulfonate (CHAPS), approximately 20% of the receptors were solubilized, most (90% or more) of which bound to Sepharose 4B conjugated with wheat germ agglutinin (WGA).
  • (20) Propane inhalation may be widespread, yet only a few cases have been reported.

Propine


Definition:

  • (v. t.) To pledge; to offer as a toast or a health in the manner of drinking, that is, by drinking first and passing the cup.
  • (v. t.) Hence, to give in token of friendship.
  • (v. t.) To give, or deliver; to subject.
  • (n.) A pledge.
  • (n.) A gift; esp., drink money.
  • (n.) Same as Allylene.

Example Sentences:

  • (1) This alcohol oxidase oxidizes not only methanol but also lower primary alcohols (C2-C4), 2-propin-1-ol and formaldehyde.
  • (2) Propine contains the following: dipivefrin, 0.1%; mannitol, 1.89%; sodium metabisulfite, 0.075%; disodium edetate, 0.0127%; and benzalkonium chloride, 0.004%.
  • (3) There was no significant difference between the intraocular lowering effect of the two preparations, and 60% of patients receiving Propine and 66% of those receiving adrenaline noted side effects.
  • (4) Iontophoresis was performed once at 0.5 mAmp for five minutes and 0.1% Propine drops were instilled four times a day beginning three days after iontophoresis and continuing for five consecutive days.
  • (5) Dipivefrin alone reproduced each patient's initial Propine-induced conjunctivitis; symptoms occurred unilaterally in one patient and bilaterally in the other four patients.
  • (6) In 12 ulcer patients in attack and in 6 healthy subjects the secretory test to insulin (Hollender test) was used and repeated after 48 hrs in association with propranolol (Propins test).
  • (7) Herpes simplex virus type 1 (HSV-1) ocular shedding and recurrent HSV-1 corneal epithelial lesions were assessed after ocular iontophoresis of 0.1% 6-hydroxydopamine followed by topical ocular instillation of 0.1% Propine in ten rabbits latently infected with HSV-1 strain McKrae.
  • (8) Derivatives of propionic and acetic acids (propinate, dalapon, MCAA, DCAA, and TCAA) did not exhibit any appreciable inhibiting effect under the experimental conditions.
  • (9) Fumarate, 3-phenyl-2-propinate, 2-enoyl-methyl and CoA esters proved not to be substrates for the purified reductase.
  • (10) Dipivefrin (Propine) is an effective ocular hypotensive agent.
  • (11) It therefore results that by using our "Propins" test it is possible to estimate the prevalence of the vagal-cholinergic or the beta-adrenergic (gastrinic) mechanism in the pathogenesis of duodenal ulcer.
  • (12) The facial nerve from the point of view of its arterial supply must be considered as a nerve of the middle fossa and represent the major risk of embolization in the propinal middle meningeal artery.
  • (13) Statistically, both dipivefrin (Propine) and levobunolol (Betagan) were found to be more expensive.
  • (14) We studied five patients with adverse local reactions to dipivefrin (Propine) eye drops.
  • (15) The results of this single-blind randomised trial comparing adrenaline 1% with dipivalyl epinephrine (Propine) 0.1% confirm that both have a significant effect in lowering the intraocular pressure in patients with open-angle glaucoma and ocular hypertension, but it is generally insufficient to warrant their use as the first line medical treatment of these two conditions.