(n.) A white, amorphous, deliquescent powder, (CO.H)2, obtained by the partial oxidation of glycol. It is a double aldehyde, between glycol and oxalic acid.
Example Sentences:
(1) Therefore, all the results suggest that 1O2 formed from glyoxal is related to its mutagenesis, but that neither O2- nor H2O2 is intracellularly predominantly related to it.
(2) In addition, the possible mutagenic effect of glyoxal was assessed in postmeiotic cells up to 7 days after treatment.
(3) The complement-fixing activity of the virus was not reduced by methyl glyoxal treatment.
(4) The distribution of hydroxyproline oxidase, hydroxyoxoglutarate aldolase and alanine-glyoxalate transaminase were determined in detail.
(5) The location of calcium in a rapid-frozen and freeze-substituted maturation stage enamel organ of the rat incisors was demonstrated by means of the glyoxal bis(2-hydroxyanil) (GBHA) staining method, which formed insoluble red precipitates of calcium-GBHA complex.
(6) Based on the assumption that an inactivating particle keeps the channel closed, several protein-modifying agents including trypsin, papain, glyoxal, and phenylglycoxal that remove Na+-channel inactivation were tested.
(7) The extent of glyoxal reaction can be easily and sensitively measured using an assay based on the intercalation of ethidium into duplex DNA.
(8) The strains did not grow on oxalate, glyoxalate, glycolate, malonate or propionate.
(9) Condensation of the glyoxal obtained by cupric acetate oxidation of 21-hydroxycorticosteroids with acetous phenylhydrazine reagent affords a near UV chromophore.
(10) Three of the base replacements led to a more compact secondary structure of RNA segment 8, which seems to be responsible for the faster migration rate during PAGE and which seems to resist, at least partially, the treatment with glyoxal.
(11) By using a histofluorescent stain (glyoxalic acid) and a histochemical stain (thiocholine) in 17 fresh cadavres, we have demonstrated that the sympathetic fibres arise from sacral sympathetic ganglia.
(12) The chemicals studied were: bleomycin, t-butyl hydroperoxide, chromium trioxide, cumene hydroperoxide, formaldehyde, glyoxal, glutaraldehyde, hydrogen peroxide, paraquat, and phenylhydrazine.
(13) It was proved to be 8-(1'-D-ribityl)lumazine, which appeared to have been formed by a reaction between glyoxal and a possible intermediate in the cells.
(14) In this paper, both glyoxal bis(4-phenyl-3-thiosemicarbazone) (GBPT) and bathocuproine disulphonate (BCDS) methods for copper have been applied to the spectrophotometric determination of copper in foods, feedingstuffs and plants.
(15) MGR I was specific to 2-oxoaldehydes [glyoxal, methylglyoxal (Km = 15.4 mM) and phenylglyoxal], whereas MGR II was active on both 2-oxoaldehydes [glyoxal (Km = 10 mM), methylglyoxal (Km = 1.43 mM), phenylglyoxal (Km = 4.35 mM) and 4,5-dioxovalerate] and some aldehydes (propionaldehyde and acetaldehyde).
(16) The glyoxal bis(guanylhydrazone) chain of the EMGBG cation deviated strongly from planarity, thus differing dramatically from the corresponding chains of the glyoxal, methylglyoxal and propylglyoxal analogs.
(17) In contrast to unmodified tRNA, glyoxalated tRNA was rapidly degraded upon injection.
(18) Glyoxal treatment significantly increased the incidence of adenocarcinomas in the pylorus of the glandular stomach of rats pretreated with MNNG and sodium chloride.
(19) Total cytoplasmic or nuclear polyadenylated RNAs from infected cells were denatured with glyoxal, separated by electrophoresis on agarose gels, and transferred to diazobenzyloxymethyl paper.
(20) With a single oral high-dose treatment of glyoxal, a great decline in the incorporation of L-[3H]leucine was shown particularly in the liver, and this probably led in part to a reduction in the serum protein levels in rats following subchronic exposure to glyoxal.
Starch
Definition:
(a.) Stiff; precise; rigid.
(n.) A widely diffused vegetable substance found especially in seeds, bulbs, and tubers, and extracted (as from potatoes, corn, rice, etc.) as a white, glistening, granular or powdery substance, without taste or smell, and giving a very peculiar creaking sound when rubbed between the fingers. It is used as a food, in the production of commercial grape sugar, for stiffening linen in laundries, in making paste, etc.
(n.) Fig.: A stiff, formal manner; formality.
(v. t.) To stiffen with starch.
Example Sentences:
(1) Glucose release from these samples was highly correlated with starch gelatinization (r2 = .99).
(2) 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.
(3) Tissue storage of hydroxyethyl starch (HES), a widely used artificial colloid, has been reported.
(4) Therefore, we changed from dextran 40 to hydroxyethyl starch in 1987 for the treatment of several otoneurological disorders.
(5) The present experiments examined flavor differences among starches.
(6) A small number of children with protracted diarrhoea, who have severe mucosal injury may not be able to handle even starch and may require diets based on short chain glucose polymers.
(7) Agarose gel electrophoresis demonstrated that the fast and slow components obtained on starch block electrophoresis corresponded to the pre-beta and late pre-beta band respectively.
(8) Dry matter and starch intakes were greater when corn was fed than when barley was fed.
(9) In a starch block, migration was toward the cathode at pH 8.0.
(10) Slowing starch digestion by inhibiting amylase activity in the intestinal lumen should improve postprandial carbohydrate tolerance in patients with diabetes mellitus.
(11) This study uses breath hydrogen analysis, a sensitive method for detecting the passage of starch into the colon, to determine if a potent amylase inhibitor is capable of producing carbohydrate malabsorption.
(12) Concentrates of amyloid substance derived from organs of 10 human patients representing a variety of clinical entities were characterized according to their amino acid compositions, their electrophoretic constituents mobile in urea-starch gel at pH 3 and their stability with respect to the binding of Congo red in the pH interval 9-12.5.
(13) The 13CO2 starch breath test is an attractive test for the study of factors affecting carbohydrate assimilation.
(14) Production of milk and milk fat was not affected, but yields of CP and SNF were decreased when additional starch was fed to cows.
(15) The effect of two doses (3 mg and 10 mg) of the inhibitor of pancreatic alpha-amylase trestatin on the metabolism of an oral load of 75 g of starch was observed in healthy human subjects.
(16) These were analyzed for: tannins, trypsin inhibitors, hemagglutinins (with cow, sheep, and human erythrocytes), damaged starch, available lysine, protein quality (by the NPR method), and true digestibility.
(17) Two-day-old poults were fed diets containing no added fat [44.6% starch, 2.2% ether extract by weight (HC)], 10% tallow (T), or 10% corn oil [(CO) 29.0% starch, 10.9% ether extract].
(18) We have examined under a variety of conditions the ability of potato starch phosphorylase to cause exchange of the ester and phosphoryl oxygens of alpha-D-glucopyranose 1-phosphate (Glc-1-P).
(19) In contrast, foci formed by 3-4 dysplastic crypts were decreased by the starch diet (P less than 0.05).
(20) Several experiments examined the preference of adult female rats for starch and starch-derived polysaccnarides using short- and long-term two-choice tests.