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Baichuan Hu et al.
The journal of physical chemistry. A, 114(1), 355-359 (2009-11-26)
The rate of iodination of acetone has been measured as a function of temperature in the binary solvent isobutyric acid (IBA) + water near the upper consolute point. The reaction mixture was prepared by the addition of acetone, iodine, and
Yi Zeng et al.
The journal of physical chemistry. A, 115(19), 4995-5004 (2011-04-29)
Computational investigations on the acid-promoted hydrolysis of 2-aryl-4,4-dimethyloxazolin-5-one (AMO) and its seven para- and meta-substituted derivatives (with electron-donating groups R = OH, OCH(3), CH(3) and electron-withdrawing groups R = Cl, m-Cl, CF(3), NO(2)) were presented by the density functional theory
Lei He et al.
World journal of gastroenterology, 13(29), 4015-4018 (2007-08-01)
To study the effect of glucose on sodium butyrate-induced proliferation inhibition and apoptosis in HT-29 cell line, and explored its possible mechanisms. HT-29 cells were grown in RPMI-1640 medium supplemented with 10% fetal calf serum, and were allowed to adhere
Bert Wouters et al.
Journal of chromatography. A, 1370, 63-69 (2014-12-03)
The gradient-performance limits of capillary ion chromatography have been assessed at maximum system pressure (34.5 MPa) using capillary columns packed with 4.1 μm macroporous anion-exchange particles coated with 65 nm positively-charged nanobeads. In analogy to the van-Deemter curve, the gradient
C J L Silwood et al.
Journal of dental research, 81(6), 422-427 (2002-07-05)
We have explored the ability of high-resolution NMR techniques to (1) index salivary biomolecules and (2) provide valuable data regarding intra- and inter-subject variability in the concentrations of a series of components readily determinable by this technique (organic acids and
Kimberlee S Mix et al.
Molecular pharmacology, 65(2), 309-318 (2004-01-27)
Matrix metalloproteinases (MMPs) degrade extracellular matrix components, and overexpression of these enzymes contributes to tissue destruction in arthritis. Of particular importance are the collagenases, MMP-1 and MMP-13, which have high activity against the interstitial collagens in cartilage. In this study
Voravee P Hoven et al.
Journal of colloid and interface science, 314(2), 446-459 (2007-07-31)
A chemically grafted tris(trimethylsiloxy)silyl (tris(TMS)) monolayer on a silicon oxide substrate was used as a template for creating nanoclusters of polymer brushes. Polymer brushes were synthesized by surface-initiated polymerization of 2-methacryloyloxyethyl phosphorylcholine (MPC) and tert-butyl methacrylate (t-BMA) via atom transfer
Marcos Alexandre Nobre Lemos et al.
Journal of biotechnology, 143(2), 103-110 (2009-07-21)
The cDNA encoding the rabies virus glycoprotein (RVGP) gene was cloned in expression plasmids under the control of the inductive metallothionein promoter. They were designed in order to bear or not a secretion signal (i) and a cDNA coding for
Chen Chen et al.
The journal of adhesive dentistry, 16(2), 169-176 (2014-04-01)
To evaluate the effects of a commercial zirconia primer (Choice or RelyX Unicem) on shear bond strength (SBS) of two different resin composite cements - Choice (a conventional bis-GMA-based resin cement) and RelyX Unicem (self-adhesive resin cement) - to zirconia.
Nicoletta Beffagna et al.
Journal of experimental botany, 58(15-16), 4183-4194 (2007-11-28)
In Arabidopsis thaliana cells, fusicoccin (FC) treatment induced an early and marked increase in the extracellular H(2)O(2) level. It also increased the huge hypo-osmotic stress-induced oxidative wave and, in addition, prevented the H(2)O(2) peak drop. These effects were apparently not
M S P Stevar et al.
Journal of colloid and interface science, 383(1), 184-197 (2012-07-20)
We report optical observations of the dissolution behaviour of glycerol/water, soybean oil/hexane, and isobutyric acid (IBA)/water binary mixtures within horizontal capillary tubes. Tubes with diameters as small as 0.2mm were initially filled with one component of the binary mixture (solute)
Kerry A Lucas et al.
The Journal of biological chemistry, 282(34), 24980-24989 (2007-06-21)
The subcellular sites of branched-chain amino acid metabolism in plants have been controversial, particularly with respect to valine catabolism. Potential enzymes for some steps in the valine catabolic pathway are clearly present in both mitochondria and peroxisomes, but the metabolic
Julia Biermann et al.
Molecular vision, 17, 395-403 (2011-02-12)
Histone deacetylase inhibitors (HDACi) have neuroprotective effects under various neurodegenerative conditions, e.g., after optic nerve crush (ONC). HDACi-mediated protection of central neurons by increased histone acetylation has not previously been demonstrated in rat retinal ganglion cells (RGCs), although epigenetic changes
Harry Michael Falk et al.
Bioprocess and biosystems engineering, 38(2), 237-249 (2014-08-22)
An ATR-MIR-FTIR spectrometer was integrated into a laboratory scale anaerobic digestion setup. Automatically, a sludge sample from the digester was transferred to a measurement cell; an IR spectrum was recorded and evaluated by chemometric models to estimate the concentration of
Qiang Liu et al.
Archives of animal nutrition, 62(5), 377-388 (2008-10-24)
The objective of this study was to evaluate the effects of isobutyrate supplementations on rumen fermentation, urinary excretion of purine derivatives and feed digestibility in steers. Eight ruminally cannulated Simmental steers were used in a replicated 4 x 4 Latin
Tomás Rezanka et al.
The Journal of antibiotics, 63(8), 524-529 (2010-07-29)
Precursor-directed biogenetic approach was used to produce a range of nonactin homologues in a 50 l fermentor cultivation of strain Streptomyces griseus 34/249 obtained by UV mutagenesis. The production medium contained sodium propionate, isobutyrate and isovalerate as individual precursors, and
Gamze Bora-Tatar et al.
Bioorganic & medicinal chemistry, 17(14), 5219-5228 (2009-06-13)
In the light of known HDAC inhibitors, 33 carboxylic acid derivatives were tested to understand the structural requirements for HDAC inhibition activity. Several modifications were applied to develop the structure-activity relationships of carboxylic acid HDAC inhibitors. HDAC inhibition activities were
Jijian Si et al.
PloS one, 7(9), e43973-e43973 (2012-09-08)
Posttraumatic stress disorder (PTSD) is characterized by acute and chronic changes in the stress response, manifested as conditioned fear memory. Previously formed memories that are susceptible to disruption immediately after retrieval undergo a protein synthesis-dependent process to become persistent, termed
Hafiz Umer Javed et al.
Food research international (Ottawa, Ont.), 119, 23-33 (2019-03-20)
Free- and bound-form volatiles in sun-dried raisins (SDRs) and air-dried raisins (ADRs) of 'Thompson Seedless' were analyzed by gas chromatography-mass spectrometry (GC/MS) for 0, 3, 6, 9 and 12 months of storage. The compounds originating from glycosidically bound (GB) volatiles were
Wei Zhang-Sun et al.
FEBS letters, 589(1), 165-171 (2014-12-06)
The levels of sulfate-reducing bacteria (SRB), including Desulfovibrionaceae, in the gut increase following a fat-enriched diet. Endotoxins from gut microbiota contribute to the inflammation process, leading to metabolic diseases. Thus, we sought to characterize the lipid A structures of Desulfovibrionaceae
Hafiz Umer Javed et al.
Food research international (Ottawa, Ont.), 107, 649-659 (2018-03-28)
The aroma profiles of volatile compounds (VOCs) were analyzed by GC/MS in pre-treated air-dried (PAD) and sun-dried (PSD) raisins during storage. Total 98, 94 and 81 VOCs were identified in Zixiang Seedless raisins (ZSRs), Centennial Seedless raisins (CSRs) and Thompson
Doris M Jacobs et al.
Analytical and bioanalytical chemistry, 404(8), 2349-2361 (2012-08-31)
NMR-based metabolite profiling of urine is a fast and reproducible method for detection of numerous metabolites with diverse chemical properties. However, signal overlap in the (1)H NMR profiles of human urine may hamper quantification and identification of metabolites. Therefore, a
Jiasheng Guo et al.
The Journal of organic chemistry, 71(21), 8302-8305 (2006-10-10)
An efficient synthesis of 2-{4-[({4-{[4-(4-methoxyphenyl)piperazin-1-yl]methyl}-2-[4-(trifluoromethyl)phenyl]-1,3-thiazol-5-yl}methyl)thio]phenoxy}-2-methylpropanoic acid (1), a potent PPARpan agonist, is described. The seven-step synthesis, which afforded 1 in 30% overall yield, includes a highly regioselective carbon-sulfur bond formation via coupling of a bishydroxymethylthiazole (3) with 4-hydroxythiophenol, displacement of
Javad Saien et al.
Ultrasonics sonochemistry, 41, 514-520 (2017-11-16)
The influence of ultrasonic waves on liquid-liquid extraction of circulating drops and in the presence of magnetite nanoparticles was investigated. Experiments were conducted in a column equipped with an ultrasound transducer. The frequency and intensity of received waves, measured by
Eduardo Coelho et al.
Food chemistry, 323, 126826-126826 (2020-04-27)
During beer ageing, endogenous barrel microbes grow spontaneously and transform wort/beer composition, being Dekkera bruxellensis and Saccharomyces cerevisiae among the main contributors to the chemical and sensory profile of aged beer. This work aims at the application of multi-starter cultures
P Madhusudhana Reddy et al.
The journal of physical chemistry. B, 115(42), 12065-12075 (2011-09-21)
We report the influence of variation of molecular weights (MWs = 2, 4, 6, and 9 × 10(5) g mol(-1)) and concentration (C) of a long-chain polymer (polyethylene oxide, PEO) on an upper critical solution temperature (UCST) of isobutyric acid
Biswajit Das et al.
Virology, 474, 65-81 (2014-12-03)
HIV patients with severe periodontitis have high levels of residual virus in their saliva and plasma despite effective therapy (HAART). Multiple short chain fatty acids (SCFAs) from periodontal pathogens reactivate HIV-1 in both Jurkat and primary T-cell models of latency.
E M Faed et al.
Clinical and experimental pharmacology & physiology, 5(2), 195-198 (1978-03-01)
1. Two main conjugates of CPIB (2-[chlorophenoxy]-2-methylpropionic acid) are present in the urine of subjects taking clofibrate. The metabolites can be separated by thin-layer chromatography (TLC). 2. Both conjugates are hydrolysed by dilute alkali, but only one is hydrolysed by
T Høverstad et al.
Scandinavian journal of gastroenterology, 19(3), 375-381 (1984-05-01)
The short-chain fatty acids ( SCFAs ) have been studied in the feces of 20 healthy subjects--10 methane excretors and 10 non-methane excretors. The analytical procedure included homogenization of fecal samples followed by vacuum distillation and subsequent gas chromatography. This
Chifu B Huang et al.
Archives of oral biology, 56(7), 650-654 (2011-02-22)
This study assessed the antibacterial activity of short-, medium-, and long-chain fatty acids against various oral microorganisms. The short-chain fatty acids [formic acid (C1), acetic acid (C2), propionic acid (C3), butyric acid (C4), isobutyric acid (C4), isovaleric acid (C5), hexanoic
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