(n.) A colorless, mobile, and very volatile liquid obtained from alcohol by certain processes of oxidation.
Example Sentences:
(1) The compounds 1-3 in reaction with nicotine aldehyde or p-chlorobenzaldehyde were transformed into appropriate anilides of 2,3-epoxypropionic acid 4-9.
(2) The effects of inhibitors of aldehyde dehydrogenase activity on the sensitivity of murine pluripotent hematopoietic stem cells to oxazaphosphorine anticancer agents, e.g.
(3) With cortisol and cortisol-21-aldehyde, product inhibition patterns showed only slope effects with steroid product and NAD+, suggesting a "random" mechanism.
(4) At alkaline pH, the Schiff's base equilibrium can be continuously and specifically displaced by reduction in situ with sodium cyanohydridoborate, which on the other hand leaves intact the reacting aldehyde groups of oxidized tRNA.
(5) At low (1-2 microM) concentrations of the drug, the oxidative demethylation of lanosterol was inhibited by about 70% in the subcellular fractions but there was no effect on the metabolism of the 3 beta, 32-diol or the 32-aldehyde.
(6) In the scope of our research about the antimicrobial activity of aldehyde-amin-condensates a number of partly new unsymmetrically substituted animals was synthesized by reaction of formaldehyde with different secondary amines.
(7) Certain mouse and human hematopoietic progenitor cells also contain an aldehyde dehydrogenase that catalyzes the detoxification of aldophosphamide, but the specific identity of this enzyme remains to be established.
(8) A simple method for distinction between RNA- and DNA-containing structures in aldehyde- and osmiumtextroxide-fixed electron microscopic autoradiographs (or ordinary thin sections) is described: the developer and the acetic acid used for processing autoradiographs extract selectively uranium acetate from DNA containing-structures which, after staining with lead citrate, leads to a characteristically 'bleached' appearance of the DNA.
(9) One was identified as viridomycin A, the ferrous chelate of 4-hydroxy-3-nitrosobenzaldehyde; the second (actinoviridin A) was the corresponding carboxylic acid chelate and the third (viridomycin E) was a hybrid chelate containing both the aldehyde and acid ligands.
(10) Microfluorometric method has been described for the determination of aldose reductase and aldehyde reductase II activities in human erythrocyte, brain, and lens.
(11) The aldehyde is strongly bound in the active site along the entire length of the alkyl chain with the strongest interaction at the CHO group.
(12) These localizations correspond best to the clear areas found in aldehyde-fixed tissue.
(13) The differences between periodate- and NAGO-induced aldehydes were demonstrated by flow cytometry of cells stained with a novel fluoresceinated hydrazide and by an electrophoretic procedure performed with biocytin hydrazide and 125I-streptavidin.
(14) Major fatty aldehydes of the phosphatidylethanolamine were 14:0 (62%), unidentified long chain forms (24%), 16:0 (7%), 18:0 (4%), 18:1 (3%).
(15) The symmetrical reagent 5,5'-dithiobis-(1-methyltetrazole) activates mitochondrial aldehyde dehydrogenase approximately 4-fold, whereas the smaller related compound methyl l-methyltetrazol-5-yl disulphide is a potent inactivator.
(16) Microwave fixation in dilute aldehyde solution has been reported to be superior to fixation in formaldehyde for the preservation of antigens.
(17) Clofibrate treatment caused a 1.5 to 2.3-fold increase in the liver specific aldehyde dehydrogenase activity.
(18) In addition, there are basic differences in the PNI formation on aldehyde-treated pericardium and natural aortic valves as compared to the Dacron fabric.
(19) The oxazolidine molecules were synthesized through the condensation of ephedrine and ephedrine-related molecules with aromatic aldehydes.
(20) The particles stain adequately with lead after aldehyde-OsO(4) fixation in phosphate buffer and provide a relatively wide set of probes ( approximately 45 A-300 A) for work on the large and small pore systems.
Reactive
Definition:
(a.) Having power to react; tending to reaction; of the nature of reaction.
Example Sentences:
(1) At the early phase of the sensitization a T-cell response was seen in vitro, characterized by an increased spleen but no peripheral blood lymphocyte reactivity to T-cell mitogens at the same time as increased reactivity to the sensitizing antigen was detected.
(2) Trifluoroacetylated rabbit serum albumin was 5 times more reactive with these antibodies and thus more antigenic than the homologous acetylated moiety confirming the importance of the trifluoromethyl moiety as an epitope in the immunogen in vivo.
(3) The data indicate that ebselen is likely to be useful in the therapy of inflammatory conditions in which reactive oxygen species, such as peroxides, play an aetiological role.
(4) Some S-100 reactive cells previously interpreted as tumour cells were refound in a few tumours.
(5) This clinical improvement was also associated with a decrease of erythrocyte sedimentation rate (p less than 0.001), decrease of C-reactive protein (p less than 0.0001) and with improvement of anaemia (p less than 0.05).
(6) These membrane perturbation effects not observed with bleomycin-iron in the presence of a hydroxyl radical scavenger, dimethyl thiourea, or a chelating agent, desferrioxamine, were correlated with the ability of the complex to generate highly reactive oxygen species.
(7) Immunocompetence was also evident when the cells from thymectomized donors were first incubated with thymus extract for 1 hr and subsequently tested for reactivity.
(8) Most of the radioactivity in spleen cells from these rats were associated with antigen-reactive cells which formed rosettes specifically with HO erythrocytes.
(9) The present study examined whether the lack of chronic hemodynamic effects of ANP in control rats was due to changes in vascular reactivity to the peptide.
(10) Reactive metabolites which suppress splenic humoral immune responses are thought to be generated within the spleen rather than in distant tissues.
(11) Brain damage may be followed by a number of dynamic events including reactive synaptogenesis, rerouting of axons to unusual locations and altered axon retraction processes.
(12) We recently demonstrated that functional change in SSI was possible simply by replacing the amino acid residue at the reactive P1 site (methionine 73) of SSI.
(13) We have evaluated the life-span of B lymphocytes by measuring the functional reactivity of normal B cells upon transfer into xid mice, which do not respond to anti-mu, fluoresceinated-Ficoll (FL-Ficoll) and 2,4,6-trinitrophenyl aminoethylcarbamylmethyl Ficoll (TNP-Ficoll).
(14) Further purification of ZAB by filtration through Sephadex G-100 gave a preparation (ZAB2) which contained the common antigen as shown by the cross-reactivity of anti-ZAB2 rat serum with seven stains of N. gonorrhoeae.
(15) The younger patients more often experienced an acute arthritis with sacroiliitis resembling a reactive disease.
(16) Cytolytic T lymphocytes lysing virus-infected and uninfected myocytes and heart-reactive autoantibodies occur in both myocarditis-susceptible strains.
(17) Subunits maintained under the above ionic conditions were compared with 30S and 50S particles at low (6 mM) magnesium concentration with respect to the reactivity of individual ribosomal proteins to lactoperoxidase-catalyzed iodination.
(18) One hundred and ninety-nine children aged 7-14 and 177 adolescents in remission and minimal manifestations of rheumatoid arthritis (RA) were examined before and after fangotherapy with allowance for activity of the process, age-related reactivity.
(19) These data suggest that submaximal exercise and cold air exposure enhance nonspecific bronchial reactivity in asthmatic but not in normal subjects.
(20) Using an antibody to the nerve growth factor receptor (NGFR), we examined dendritic reticulum cells (DRCs) immunohistochemically in 62 formalin-fixed, paraffin-embedded lymph nodes from patients with reactive follicular hyperplasia or with various types of lymphoma.