What's the difference between glycerol and glycol?

Glycerol


Definition:

  • (n.) Same as Glycerin.

Example Sentences:

  • (1) Estimations of the degree of incorporation of 14C from the radioactive labeled carbohydrate into the glycerol and fatty acid moieties were carried out.
  • (2) Similar results were obtained with 1-oleoyl 2-acetylglycerol (OAG), whereas 1, 2 diolein, 1-oleoyl glycerol, or 4 alpha-phorbol 12, 13-didecanoate had no effect.
  • (3) Changes in renal renin levels after the administration of glycerol were not significant, although lower renal renin values were consistently found in rabbits with more severe impairment of renal function.
  • (4) When labelled long-chain fatty acids or glycerol were infused into the lactating goat, there was extensive transfer of radioactivity into milk in spite of the absence of net uptake of substrate by the mammary gland.
  • (5) sn-Glycerol 3-phosphate was found to decrease the quasi-stationary concentration of Fru 2,6-P2.
  • (6) Rhesus monkey BAT mitochondria (BATM) possess an uncoupling protein that is characteristic of BAT as evidenced by the binding of [3H]GDP, the inhibition by GDP of the high Cl- permeability or rapid alpha-glycerol-3-phosphate oxidation.
  • (7) Glucose formation from a range of substrates, with the exception of glycerol, was increased by an increase in extracellular Ca(2+) concentration.
  • (8) A search in protein data banks revealed that IclR has a score of similarity of 43.7% with GylR, a transcriptional regulator of the glycerol operon of Streptomyces coelicolor.
  • (9) We conclude, therefore, that a direct deacylation of the acyl groups at the primary alcohol level of the glycerol probably does not occur, but postulate that transacylations may occur to account for the removal of the acyl moiety.
  • (10) The dynamic properties of cross-bridge movement were investigated in glycerol-treated muscle fibers under various conditions by analyzing tension responses to two types of length change.
  • (11) A 4.1-kb EcoRI fragment which includes the gene (gldA) encoding a glycerol dehydrogenase (G1DH; EC 1.1.1.6; glycerol:NAD oxidoreductase) from Bacillus stearothermophilus var.
  • (12) Methods are described for the analysis of glucose, lactate, pyruvate, alanine, glycerol, 3-hydroxybutyrate and acetoacetate in perchloric acid extracts of human blood, using the Cobas Bio centrifugal analyser fitted with a fluorimetric attachment.
  • (13) Glycerol permeation and thus its osmotic action may be less in the soleus than in other muscles.
  • (14) The activity of succinic dehydrogenase, a mitochondrial enzyme, was decreased by the deficiency, but the activities of fumarase, sn-glycerol-3-phosphate dehydrogenase, alcohol dehydrogenase, sn-glycerol-3-phosphate oxidase and fatty acid synthetase were unaffected.
  • (15) This oxidation is sensitive to catalase and glutathione plus glutathione peroxidase, suggesting a requirement for H2O2 in the overall pathway of glycerol oxidation.
  • (16) The defect is due to a single mutation in glycerol 3-phosphate acyltransferase (EC 2.3.1.15).
  • (17) Insertion of the fusion-generating phage Mud1 (Ap, lacZ) yielded two similar isolates, DC511 and DC512, which were unable to grow aerobically on acetate or alpha-ketoglutarate but which could use succinate, malate, fumarate, glycerol, and various sugars.
  • (18) Glycerol gradient centrifugation partially dissociated the complex to yield two peaks of exonuclease III activity, one at 7.7 S together with the DNA polymerase, and one at 4.0 S without polymerase activity.
  • (19) The native mass of factor a was estimated to be 240-260 kDa by gel filtration, but its sedimentation rate in a glycerol gradient was similar to that of a much smaller globular protein, suggesting an extended conformation.
  • (20) The radiochemical testings further indicate that the mutation has inactivated an inducible glycerol kinase, while a low residual activity may be due to a second, basal and non-inducible glycerol kinase, in accordance with a proposal by North (1973, 1974) that Neurospora has two glycerol kinases with these properties.

Glycol


Definition:

  • (n.) A thick, colorless liquid, C2H4(OH)2, of a sweetish taste, produced artificially from certain ethylene compounds. It is a diacid alcohol, intermediate between ordinary ethyl alcohol and glycerin.
  • (n.) Any one of the large class of diacid alcohols, of which glycol proper is the type.

Example Sentences:

  • (1) Plasma renin activities (PRA) and aldosterone concentrations increased in parallel over a wide range of plasma volume deficits produced in unanesthetized rats by extravascular administration of polyethylene glycol (PEG) solution.
  • (2) 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.
  • (3) The first step is the preparation of a globulin-enriched fraction by precipitation with ammonium sulfate at 50% saturation, or of an immune-complex-enriched fraction by precipitation with 5% polyethylene glycol 6000.
  • (4) 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.
  • (5) CZP reduced the incidence of convulsions only after the larger dose, but plain solvent (propylene glycol, ethanol, water) was equally effective.
  • (6) A hemolytic reaction, probably due to the propylene glycol in the solution, was seen in one case.
  • (7) In vitro sensitizing activities were correlated to the promotion efficiency of radiolytic hydroxylation of thymine to thymine glycol and to the one-electron reduction potential of a variety of fluorinated and non-fluorinated nitroazole derivatives.
  • (8) Subjects were prepared for colonoscopy with polyethylene glycol 4,000.
  • (9) At initial concentrations of 0.1 and 1.0 M, glycerin and propylene glycol increase significantly the intestinal absorption rate of theophylline from the small intestine of anesthetized rats.
  • (10) These results indicate that MLO-I and MLO-II are different from L-amino acid oxidase (EC 1.4.3.2), malate oxidase (EC 1.1.3.3), L-alpha-hydroxy acid oxidase (EC 1.1.3.15) and glycolate oxidase (EC 1.1.3.1).
  • (11) In the presence of glycolate (glyoxylate), and NADH and NAD alone or together in physiological proportions, the rate of serine-to-glycerate conversion was enhanced and sustained by the addition of malate.
  • (12) Pigs of varying age, newborn (Oh), 36-45 h old and 22-28 days old, were gavage fed polyethylene glycol 1000 together with the macromolecular markers bovine serum albumin, ovalbumin or FITC-labelled dextran 70,000.
  • (13) 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.
  • (14) After intubation of fructans into the stomachs of rats, the recovery of fructans in the small intestine and colon was approximately the same as that of an unabsorbed marker (polyethylene glycol), indicating no or very low disappearance of fructans in the small intestine.
  • (15) Colonic cleansing was better with polyethylene glycol electrolyte lavage (90 percent optimal cleansing vs. 75 percent).
  • (16) Practical examples illustrate the possibility of ethylene glycol determination by gas chromatography in the presence of propylene glycol.
  • (17) The search for circulating immune complexes (IC) by precipitation tests using polyethylene glycole was performed in a large series of normal (150 subjects) and 1200 pathological sera (over 800 patients).
  • (18) 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.
  • (19) 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.
  • (20) Two-phase systems consisting of water, dextran and poly(ethylene glycol) have been used for partition of membranes obtained from Torpedo marmorata electric organ.