(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.
Inulin
Definition:
(n.) A substance of very wide occurrence. It is found dissolved in the sap of the roots and rhizomes of many composite and other plants, as Inula, Helianthus, Campanula, etc., and is extracted by solution as a tasteless, white, semicrystalline substance, resembling starch, with which it is isomeric. It is intermediate in nature between starch and sugar. Called also dahlin, helenin, alantin, etc.
Example Sentences:
(1) Modest reductions in renal function as measured by clearances of inulin and p-aminohippurate occurred acutely only in the patients with renal impairment.
(2) Induction of NSN resulted in a significant fall of inulin clearance (Cin) and paraaminohippurate clearance at 2 hours, 24 hours, and 7 days in both groups.
(3) Linear regression analyses (LRA) were performed to determine whether the percentage dose at various time intervals after injection correlated with GFR calculated on the basis of creatinine and inulin clearance data.
(4) Sera depleted of terminal complement components by treatment with inulin or cobra venom factor and C8-deficient human serum did not support phagocytosis of the test strains.
(5) The drug and inulin were injected into the right internal carotid artery as a rapid bolus and the venous outflow curve at the posterior facial vein was obtained.
(6) The present study demonstrates that this fluorocarbon perfusion technique maintains the integrity of the blood-brain barrier (BBB), as evidenced by the small volume (1.77-3.33%) accessible to [carboxyl-14C]inulin.
(7) Brain uptake of inulin and methotrexate was significantly increased in the dogs made hydrocephalic 4 weeks prior to perfusion, but was less so in the 8-week hydrocephalics.
(8) Inulin clearance was minimally enhanced, and para-aminohippuran clearance was slightly decreased by candoxatril in both groups.
(9) The glomerular filtration rate (GFR) was measured using a continuous inulin infusion in control, treadmill running, and swimming experiments in intact and splenectomized dogs.
(10) The influence of various medium supplements on Sertoli cell (Sc) monolayer permeability to [3H]inulin and polarized secretion of transferrin (Trf) and androgen-binding protein (ABP) was investigated in a two-compartment culture chamber.
(11) This could only be explained if these compounds distributed with the albumin space and not the inulin space.
(12) Polyethylene glycol (PEG 4000) and [(14)C]inulin served as water markers.2.
(13) Mean creatinine clearance (Ccreat) in donor was 78% that of controls, which was similar to the 85% ratio of inulin clearance (Cin) in donors compared with that of controls.
(14) By measuring inulin clearance, lithium clearance and urinary excretion rates of sodium and water, the changes in proximal and distal tubular sodium handling were dissociated.
(15) Three dialysis membranes, including a polyacrilonitrile membrane, a polycarbonate membrane and a cuprophan membrane coated with charcoal, have been compared with cuprophan in order to assess their ability to clear from aqueous solution and plasma, substances thought to be of pathogenetic importance in hepatic coma (ammonia, short chain fatty acids and mercaptans), some protein bound (glycocholate and bromsulphthalein) and some middle molecular weight molecules (ethylenediaminetetracetic acid, cyanocobalamin and inulin).
(16) Glomerular filtration rates obtained by this method (method A) and those obtained with two widely used single-injection techniques, the slope-intercept method (method B), and the two-compartment method (method C), were compared with GFRs obtained by standard inulin clearance techniques in 14 dogs.
(17) For unknown reasons, multiple doses of these liposomes resulted in further reduction in ocular inulin absorption when compared with single doses.
(18) It was shown that the degradative products of levan or inulin and low concentrations of fructose were able to induce levanase expression.
(19) Aqueous humor dynamics were studied in the dogfish, Squalus acanthias, using isotopically labeled inulin, Na+, Cl-, and HCO-3.
(20) Glomerular filtration rate (GFR) and renal blood flow (RBF) were calculated from the inulin and p-aminohippuric acid clearances, respectively.