(1) In each sheep there was a significant negative correlation between the glucose and corticosteroid concentrations in both maternal and fetal plasma, and there were positive correlations between the maternal and fetal plasma concentrations of glucose, and between the glucose and fructose concentrations of fetal plasma.
(2) This is interpreted to mean that the release of fructose from the central complex is faster than the isomerization of the E-NADH complex.
(3) It is suggested the participation of glycogen (starch) in the self-oscillatory mechanism of the futile cycle formed by the phosphofructokinase and fructose bisphosphatase reactions may give rise to oscillations with the period of 10(3)-10(4) min, which may serve as the basis for the cell clock.
(4) Under anaerobic conditions, glycolytic flux was decreased but this did not appear to be the result of inhibition of phosphofructokinase, since the concentrations of both substrates, fructose 6-phosphate and ATP, were decreased.
(5) The intracellular levels of the 6-phosphates of glucose, fructose, and mannose did not increase in the presence of 2-dG.
(6) A mutant delta ptsH of Escherichia coli was used to obtain a mutation which damages a function of cytoplasmic specific component of the fructose phosphotransferase system--FPr protein.
(7) The concentration dependences of response of frog tongue to D-fructose, D-glucose, and sucrose were almost the same, D-galactose, however, elicited a much larger response in comparison with the other sugars in the whole range of concentrations examined.
(8) Fructose bisphosphatase, a gluconeogenic enzyme, is high along the major portion of the proximal tubule but plummets along the final millimeter of S3.
(9) Linear relationships were also observed between delta psi m and the rate of formation of lactate in cells incubated with fructose and in hepatocytes from fed rats.
(10) From the different shapes of the scattering curves of the native phosphofructokinase at pH 7.5 in the presence of 15 mM ATP and of the cross-linked tetramer or octamer, it can be inferred that the shapes of the protomers are different: in the presence of ATP the protomers are elongated, having an axial ratio of 1.8 to 2.0; the cross-linked state reveals a spherical protomer of radius 33.0 A, similar to that of the native enzyme at pH 7.5 in the presence of fructose 6-phosphate or fructose 1,6-bisphosphate.
(11) Radioactive lactic acid was detected in the drained perfusion solution with D(U-14C)-glucose, but not when D(U-14C)-fructose was used.
(12) In a complete system, consisting of a dye-donor couple, ferredoxin, thioredoxin and ferredoxin-thioredoxin reductase, light activation of purified spinach fructose-1,6-bisphosphatase was observed in vitro.
(13) On incubation for 90 min with fructose 2,6-bisphosphate, about 80% of the substrate appears with an almost linear time dependence as fructose.
(14) Its director, Susanne Logstrup, warned that replacing glucose and sucrose with "healthier" fructose might make people think a drink or food was less fattening.
(15) In a previous paper, the main mutagenic compound isolated from the model reaction system D-fructose, DL-alanine and creatinine was tentatively identified as 4,8-DiMeIQx.
(16) This was associated with an increase in intracellular glucose and decreases in aortic smooth muscle sorbitol and fructose consistent with an inhibition of aldose reductase.
(17) Production of radioactive CO2 from 14C-fructose administered intraperitoneally was studied in 18 male Wistar rats given food containing saccharose with calorific value of 0-56%.
(18) Since intestinal sodium absorption was so enhanced by an actively transported sugar, fructose and galactose perfusion fluids were prepared, and it was found that fructose was less well absorbed than glucose or galactose: in general, the results with these sugars were consistent with the sodium-dependent active transport of galactose and the passive transport of fructose, unrelated to sodium transport.
(19) Administration of different brain fuels--glucose, mannose, fructose, or the ketone beta-hydroxybutyrate--reduced hippocampal damage induced by coadministration of GCs and either of 2 different neurotoxins (kainic acid and 3-acetylpyridine).
(20) The concentrations of fructose 2,6-bisphosphate that gave 50% inhibition of rat muscle and liver enzymes were 6.3 and 1.5 microM, respectively.
Sugar
Definition:
(n.) A sweet white (or brownish yellow) crystalline substance, of a sandy or granular consistency, obtained by crystallizing the evaporated juice of certain plants, as the sugar cane, sorghum, beet root, sugar maple, etc. It is used for seasoning and preserving many kinds of food and drink. Ordinary sugar is essentially sucrose. See the Note below.
(n.) By extension, anything resembling sugar in taste or appearance; as, sugar of lead (lead acetate), a poisonous white crystalline substance having a sweet taste.
(n.) Compliment or flattery used to disguise or render acceptable something obnoxious; honeyed or soothing words.
(v. i.) In making maple sugar, to complete the process of boiling down the sirup till it is thick enough to crystallize; to approach or reach the state of granulation; -- with the preposition off.
(v. t.) To impregnate, season, cover, or sprinkle with sugar; to mix sugar with.
(v. t.) To cover with soft words; to disguise by flattery; to compliment; to sweeten; as, to sugar reproof.
Example Sentences:
(1) These results demonstrate that increased availability of galactose, a high-affinity substrate for the enzyme, leads to increased aldose reductase messenger RNA, which suggests a role for aldose reductase in sugar metabolism in the lens.
(2) In addition to the changes associated with blood group A, we also found a decrease in sugar content, alterations in other antigens, and changes in the levels of several glycosyltransferases in cancerous tissues.
(3) Their contour lengths varied from 0.28 to 51 micron, but unlike in the case of maize, a large difference was not observed in the distribution of molecular classes greater than 1.0 micron between N and S cytoplasms of sugar beet.
(4) As a group, the three mammalian proteins resemble bovine serum conglutinin and behave as lectins with rather broad sugar specificities directed at certain non-reducing terminal N-acetylglucosamine, mannose, glucose and fucose residues, but with subtle differences in fine specificities.
(5) TK1 showed the most restricted substrate specificity but tolerated 3'-modifications of the sugar ring and some 5-substitutions of the pyrimidine ring.
(6) 500-MHz H-NMR spectroscopy of the oligosaccharides derived from gamma-seminoprotein, a human seminal plasma glycoprotein, revealed considerable microheterogeneity both with respect to the degree of branching and with regard to the peripheral sugars.
(7) The percentage of energy from fat and added sugars and the amount of sodium and fibre in the diet tended to increase with energy intake.
(8) D-Mannitol has not so far been known as a major product of sugar metabolism by yeasts.
(9) The concentration dependences of response of frog tongue to D-fructose, D-glucose, and sucrose were almost the same, D-galactose, however, elicited a much larger response in comparison with the other sugars in the whole range of concentrations examined.
(10) A brevibacterium, strain TH-4, previously isolated by aerobic enrichment on the monocyclic monoterpenoid cis-terpin hydrate as a sole carbon and energy source, was found to grow on alpha-terpineol and on a number of common sugars and organic acids.
(11) These results provide no support for the claims that aprotinin prevents the activation of sugar transport in muscle by contractile activity or that bradykinin is the muscle activity hypoglycemia factor.
(12) Increased erythrocyte levels of the pyrimidine-sugar UDP-glucose were also found in patients with the highest orotidine levels.
(13) Each of the three A toxins consists of a single basic polypeptide chain of 93 to 99 residues, cross-linked by three or four disulfide bonds, lacking reducing sugar and cysteinyl residues.
(14) Well-refined x-ray structures of the liganded forms of the wild-type and a mutant protein isolated from a strain defective in chemotaxis but fully competent in transport have provided a molecular view of the sugar-binding site and of a site for interacting with the Trg transmembrane signal transducer.
(15) Two newly discovered enzymes have the capacity to metabolize these sugars but are not essential for their catabolism in wild-type cells.
(16) Often, flavorings such as chocolate and strawberry and sugars are added to low-fat and skim milk to make up for the loss of taste when the fat is removed.
(17) All components studied, namely amino-sugars, hexoses and neuraminic acid increased with age in men.
(18) The presence of serum in the phagocytosis assay did not affect either phagocytosis of Phz-treated RBCs or inhibition by sugars.
(19) In addition, 5-imino-derivatives of daunorubicin modified at sugar moiety were less effective in stimulating NADH oxidation and oxygen radical production than 5-iminodaunorubicin itself.
(20) Photobinding of 8-methoxypsoralen to 2'-deoxyadenosine also occurs, with covalent bond formation between carbon 3 or 4 of the pyrone ring and the sugar moiety of the nucleoside.