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Pirrung Michael C - - 2013
Allylic ethers of kojic acid undergo Claisen rearrangement with catalysis by zinc triflate to give the corresponding C-allylated kojic acids in moderate to good yields.
Hassani Ahmed - - 2013
There has been recently increased interest in sorghum to substitute the gluten containing cereals in the diet of people suffering from celiac disease. The response surface methodology was used to determine the influence of malting parameters (degree of steeping, germination temperature and time) on sorghum (Sorghum bicolor (L.) Moench). Each ...
Sinna Raphael - - 2012
The use of subcutaneous hyaluronic acid injection in cosmetic surgery is a popular and well-accepted technique. A new highly reticulated, nonanimal, stabilized hyaluronic acid has been recently developed for high-volume enhancement, especially breast augmentation. We describe this technique for funnel chest treatment.
Rzany Berthold - - 2012
Emervel®: Full-Face Rejuvenation With a Range of Customized Hyaluronic Acid Fillers This supplement to the Journal of Drugs in Dermatology discusses a new range of hyaluronic acid fillers suited for various indications. The authors highlight the key physical properties of this new range of fillers and present results of a ...
Sato Kenji - - 2011
A water-extract of shark cartilage was fractionated into acidic and basic fractions by preparative isoelectric focusing on the basis of amphoteric nature of samples. The acidic fraction was further fractionated into ethanol-soluble and -precipitate fractions. After the carcinogenesis treatment using N-nitrosobis(2-oxopropyl)amine, hamsters received the diet containing each fraction or purified ...
Zhu Jingfang - - 2011
The experimental and theoretical enthalpies of formation of several structural-similar glycine-based sulfate/bisulfate amino acid ionic liquids including glycine sulfate (Gly2SO4, 1), glycine bisulfate (GlyHSO4, 2), N,N-dimethylglycine sulfate ([DMGly]2SO4, 3), N,N-dimethylglycine bisulfate ([DMGly]HSO4, 4), N,N-dimethylglycine methyl ester sulfate ([DMGlyC1]2SO4, 5), N,N-dimethylglycine methyl ester bisulfate ([DMGlyC1]HSO4, 6), N,N,N-trimethylglycine methyl ester sulfate ([TMGlyC1]2SO4, ...
Richards Kristen N - - 2011
A 24-month follow up of a previously reported case of successful hyaluronic acid filler use in steroid atrophy is presented. The patient had persistence of the volume and appearance of her scar with sustained satisfaction 24 months after hyaluronic acid treatment, without the need for repeat injection. This case suggests expansion ...
Yamakoshi Yasuo - - 2011
Kallikrein-related peptidase 4 (KLK4) is a glycosylated serine protease that functions in the maturation (hardening) of dental enamel. Pig and mouse KLK4 contain three potential N-glycosylation sites. We isolated KLK4 from developing pig and mouse molars and characterized their N-glycosylations. N-glycans were enzymatically released by digestion with N-glycosidase F and ...
Gras C - - 2011
HLA-B*35:167 allele differs from HLA-B*35:03:01 and HLA-B*35:70 by an amino acid exchange at position 152.
Berndt Falko - - 2011
The common route to link quinolinium and pyridinium fluorophores to biomolecules via bromoacetic acid has failed in labeling the disaccharide trehalose with N-methyl-6-oxyquinolinium betaine: the unexpected, extremely high instability of the N-carboxymethyl ester was overcome by direct N-alkylation of the quinoline derivative with trehalose triflate.
Ishiyama Tatsuya - - 2011
Surface structure of aqueous sulfuric acid solution at a typical atmospheric concentration (0.2x, x: mole fraction) is investigated by close collaboration of molecular dynamics (MD) simulation and sum frequency generation (SFG) measurement. The SFG spectra of both O-H and S-O stretching vibrations are provided with different sets of polarization combination. ...
Lu Jian - - 2011
The acid tolerance response of an AMD bioremediation system based on sulfate reduction was investigated. Efficient sulfate reduction was observed with a maximum sulfate reduction rate of 12.3±0.8mgL(-1)d(-1) and easily available organic carbon was released during high acid treatment with an initial pH of 2.0. The rapid increase in sulfate ...
Meier Jutta - - 2011
Acid mine drainage sites are extreme environments with high acidity and metal ion concentrations. Under anoxic conditions, microbial sulfate reduction may trigger the formation of secondary minerals as a result of H(2)S production and pH increase. This process was studied in batch experiments with enrichment cultures from acidic sediments of ...
Clayton Russell - - 2011
A study was undertaken to evaluate the feasibility of synthesizing six sialic acid-PAMAM glycodendrimers using unprotected sialic acid in as few as 1-4 steps using two different reaction pathways, and to assess the sulfated derivatives for anti-HIV activity. The syntheses were accomplished through either the direct attachment of the sialic ...
Kurogi Katsuhisa - - 2011
The current study was designed to examine the sulfation of bile acids and bile alcohols by the Zebra danio (Danio rerio) SULTs in comparison with human SULTs. A systematic analysis using the fifteen Zebra danio SULTs revealed that SULT3 ST2 and SULT3 ST3 were the major bile acid/alcohol-sulfating SULTs. Among ...
Park Kui Young - - 2011
The authors have indicated no significant interest with commercial supporters.
Lauder Robert M - - 2011
The polymers chondroitin sulphate and dermatan sulphate have been fragmented by an anhydrous hydrazine/nitrous acid procedure. The resulting disaccharides from the polymer repeat sequences were reduced with NaBH(4) and purified by ion exchange chromatography. Whereas enzymatic depolymerisation leads to the loss of the distinction between glucuronic and iduronic acids of ...
Herczeg Mihály - - 2011
d-Glucuronate and l-iduronate-containing disaccharides related to the antithrombin-binding domain of heparin were prepared. The carboxylic function of the uronic acid unit was formed on a disaccharide level in the case of the glucuronate, while on a monosaccharide level in the case of the iduronate derivatives. Synthesis of their sulfonic acid ...
Olson Corey N - - 2011
Organosulfates have been proposed as potential contributors to aerosol growth and have been detected in both chamber and atmospheric aerosol samples. We present a simple method for the synthesis of quantitative analytical standards of two small hydroxycarboxylic acid-derived organosulfates, glycolic and lactic acid sulfate. Additionally, we discuss the stability of ...
Furusawa Mina - - 2011
Coffee "silverskin" (CS) is a by-product of the roasting procedure for coffee beans. A CS extract (CS-ext) was found to have a high inhibitory effect against hyaluronidase. It seems that the higher-molecular-weight substances in CS-ext contributed most to the hyaluronidase inhibition, while acidic polysaccharides mainly composed of uronic acid played ...
Choksi Adrienne N - - 2011
The authors have indicated no significant interest with commercial supporters.
Pielesz A - - 2011
Along with proteins, lipids, water and minerals, polysaccharides are the main chemical compounds of which macroalgae are built. Among the chemical compounds now widely examined is fucoidan (fucan, fucosan, sulfate fucan or sulfated fucan), a fucose-containing sulfated polysaccharide. Fucoidans isolated from different species have been extensively studied because of their ...
Redeuil Karine - - 2011
This study reports a liquid chromatography-mass spectrometry method for the detection of polyphenol-derived metabolites in human plasma without enzymatic treatment after coffee consumption. Separation of available standards was achieved by reversed-phase ultra performance liquid chromatography and detection was performed by high resolution mass spectrometry in negative electrospray ionization mode. This ...
Kapoor Pranav - - 2011
Hyaluronic acid is a hygroscopic macromolecule formed by the polymerisation of glucuronic acid and N-acetylglucosamine disaccharide. It is a primary component of the extracellular matrix in various body tissues. Ihe use of topical Hyaluronic acid in the treatment of oral ulcers has been recently reported. This article reviews the mechanism ...
Watanabe Hiroshi - - 2011
Protein-bound uremic toxins, such as indoxyl sulfate, 3-carboxy-4-methyl-5-propyl-2-furanpropanoic acid, p-cresyl sulfate, hippuric acid, and indoleacetic acid, have been the subjects of extensive investigations. In this review, we summarized the recent works providing the new insight on the pharmacokinetics and redox properties of these uremic toxins. They have a common characteristic ...
Maaløe T - - 2011
The proinflammatory leukotriene B(4) (LTB(4)) may be of importance in the progression of chronic kidney disease (CKD). We investigated whether n-3 polyunsaturated fatty acids (PUFA) decrease LTB(4) and increase the formation of the less inflammatory leukotriene B(5) (LTB(5)) in patients with CKD. Fifty-six patients with CKD stage 2-5 were randomised ...
Doohan Roisin A - - 2011
Collision induced dissociation (CID) fragmentation was compared between reducing and reduced sulfated, sialylated, and neutral O-linked oligosaccharides. It was found that fragmentation of the [M - H](-) ions of aldoses with acidic residues gave unique Z-fragmentation of the reducing end GalNAc containing the acidic C-6 branch, where the entire C-3 ...
Wempe Michael F - - 2011
The kidneys are a vital organ in the human body. They serve several purposes including homeostatic functions such as regulating extracellular fluid volume and maintaining acid-base and electrolyte balance and are essential regarding the excretion of metabolic waste. Furthermore, the kidneys play an important role in uric acid secretion/reabsorption. Abnormalities ...
Lim Adrian C - - 2011
For volume restoration of the face, hyaluronic acid is conventionally injected through long, large-bore, 18-gauge needles because of the higher viscosity subtypes required. These hyaluronic acids are either more highly cross-linked or larger in particle size than the less-viscous subtypes. The microdepot injection technique involves using the 31-gauge BD insulin ...
Holub Bruce J - - 2011
The present study assessed the effect of oral supplementation with docosapentaenoic acid (DPA, 22:5n-3) on the levels of serum and tissue lipid classes and their fatty acid compositions including individual phospholipid types in rat liver, heart, and kidney. Sprague-Dawley rats received daily oral gavage over 10 days as corn oil without ...
Bao Hong Hui - - 2011
Four proteoglycans were sequentially extracted from Hypsizygus marmoreus using 0.1 M NaOH (alkali-soluble proteoglycans [F1] and alkali-insoluble proteoglycans [F3]) and 0.1 M HCl (acid-soluble proteoglycans [F2] and acid-insoluble proteoglycans [F4]), and their structures and immunomodulatory activities were investigated. The proteoglycans were found to contain carbohydrates (19.8-82.4%) with various amounts of ...
Hopf Patrick S - - 2011
Glycosylation of flagellins by pseudaminic acid is required for virulence in Helicobacter pylori. We demonstrate that, in H. pylori, glycosylation extends to proteins other than flagellins and to sugars other than pseudaminic acid. Several candidate glycoproteins distinct from the flagellins were detected via ProQ-emerald staining and DIG- or biotin- hydrazide ...
Jiang Zhihua - - 2011
Six genes involved in the heparan sulfate and heparin metabolism pathway, DSEL (dermatan sulfate epimerase-like), EXTL1 (exostoses (multiple)-like 1), HS6ST1 (heparan sulfate 6-O-sulfotransferase 1), HS6ST3 (heparan sulfate 6-O-sulfotransferase 3), NDST3 (N-deacetylase/N-sulfotransferase (heparan glucosaminyl) 3), and SULT1A1 (sulfotransferase family, cytosolic, 1A, phenol-preferring, member 1), were investigated for their associations with muscle ...
Bui Peter - - 2011
CYP2S1 is a recently described dioxin-inducible cytochrome P450. We previously demonstrated that human CYP2S1 oxidizes a number of carcinogens but only via the peroxide shunt. In this article, we investigated whether human CYP2S1 can metabolize cyclooxygenase- and lipoxygenase-derived lipid peroxides in a NADPH-independent fashion. Human CYP2S1 metabolizes prostaglandin G(2) (PGG(2)) ...
Zhou Yangyan - - 2010
Human prostaglandin D synthase (L-PGDS) is a lipocalin-type enzyme involved in the metabolism of arachidonic acid and plays a key role in the regulation of sleep, allergy, pain sensation, and the development of male reproductive organs. Here, using a combination of crystallographic, biochemical, mutagenesis, and kinetic studies, we have gained ...
Liu W - - 2011
The cyclooxygenase (COX) activity of prostaglandin H synthase-2 (PGHS-2) is implicated in colorectal cancer and is targeted by nonsteroidal anti-inflammatory drugs (NSAIDs) and dietary n-3 fatty acids. We used purified, recombinant proteins to evaluate the functional impacts of the R228H, E488G, V511A and G587R PGHS-2 polymorphisms on COX activity, fatty ...
Zan Ke - - 2010
Four prostaglandin-like fatty acid derivatives anomalone A-D (1-4) were isolated from the aerial part of Artemisia anomala S. Moore. Their structures were determined on the basis of extensive spectroscopic analyses.
dos Santos Michel David - - 2010
In this study we aimed at evaluating the effect of the major polar constituents of the medicinal plant Lychnophora ericoides on the production of inflammatory mediators produced by LPS-stimulated U-937 cells. The 6,8-di-C-beta-glucosylapigenin (vicenin-2) presented no effect on tumor necrosis factor (TNF)-alpha production, but inhibited, in a dose-dependent manner, the ...
Subra Caroline - - 2010
Exosomes are bioactive vesicles released from multivesicular bodies (MVB) by intact cells and participate in intercellular signaling. We investigated the presence of lipid-related proteins and bioactive lipids in RBL-2H3 exosomes. Besides a phospholipid scramblase and a fatty acid binding protein, the exosomes contained the whole set of phospholipases (A2, C, ...
Kakutani Saki - - 2010
Administration of dihomo-gamma-linolenic acid is useful for atopic dermatitis and atherosclerosis in mice; however, the metabolites of dihomo-gamma-linolenic acid have been little studied. We employed a method which enabled simultaneous analysis of nine prostaglandins using liquid chromatography-tandem mass spectrometry, and determined the concentrations of prostaglandins in the supernatants of cultures ...
Sharma Narayan P - - 2010
Prostaglandin endoperoxide H synthases (PGHS)-1 and -2, also called cyclooxygenases, convert arachidonic acid (AA) to prostaglandin H(2) (PGH(2)) in the committed step of prostaglandin biosynthesis. Both enzymes are homodimers, but the monomers often behave asymmetrically as conformational heterodimers during catalysis and inhibition. Here we report that aspirin maximally acetylates one ...
Karlsson Sofia - - 2010
Ellagic acid, a natural polyphenol found in certain fruits, nuts and vegetables, has in recent years been the subject of intense research within the fields of cancer and inflammation. Pain, fever and swelling, all typical symptoms of inflammation, are ascribed to elevated levels of PGE2. In the present study, we ...
Koeberle Andreas - - 2010
The microsomal prostaglandin E(2) synthase (mPGES)-1 is one of the terminal isoenzymes of prostaglandin (PG) E(2) biosynthesis. Pharmacological inhibitors of mPGES-1 are proposed as an alternative to nonsteroidal anti-inflammatory drugs. We recently presented the design and synthesis of a series of pirinixic acid derivatives that dually inhibit mPGES-1 and 5-lipoxygenase. ...
Stanley David W - - 2009
Nine pharmaceutical inhibitors of eicosanoid biosynthesis (e.g., bromophenacyl bromide, clotrimazole, diclofenamic acid, esculetin, flufenamic acid, indomethacin, nimesulide, sulindac, tolfenamic acid) that increased the susceptibility of the gypsy moth, Lymantria dispar (L.), to the nucleopolyhedrovirus LdMNPV were tested against the beet armyworm Spodoptera exigua (H??bner), the corn earworm Helicoverpa zea (Boddie) ...
Mulugeta Surafel - - 2010
Biosynthesis of the prostaglandin endoperoxide by the cyclooxygenase (COX) enzymes is accompanied by formation of a small amount of 11R-hydroxyeicosatetraenoic acid (HETE), 15R-HETE, and 15S-HETE as by-products. Acetylation of COX-2 by aspirin abrogates prostaglandin synthesis and triggers formation of 15R-HETE as the sole product of oxygenation of arachidonic acid. Here, ...
Yuan Chong - - 2009
Prostaglandin endoperoxide H synthases (PGHSs) 1 and 2, also known as cyclooxygenases (COXs), catalyze the oxygenation of arachidonic acid (AA) in the committed step in prostaglandin (PG) biosynthesis. PGHSs are homodimers that display half of sites COX activity with AA; thus, PGHSs function as conformational heterodimers. Here we show that, ...
Mohamed Maged E - - 2009
Prostanoids are a large family of lipid mediators originating from prostaglandin H synthase (PGHS) activity on the 20-carbon polyunsaturated fatty acids dihomo-gamma-linolenic acid (DGLA), arachidonic acid (AA) and eicosapentaenoic acid. The two mouse PGHS isoforms, PGHS-1 and PGHS-2, were expressed in Saccharomyces cerevisiae (yeast), as was a signal-peptide-deleted version of ...
Anderson Brian J - - 2008
Paracetamol has a central analgesic effect that is mediated through activation of descending serotonergic pathways. Debate exists about its primary site of action, which may be inhibition of prostaglandin (PG) synthesis or through an active metabolite influencing cannabinoid receptors. Prostaglandin H(2) synthetase (PGHS) is the enzyme responsible for metabolism of ...
Orata Francis - - 2009
In this study we present a report of investigation from the screening of perfluorooctanoic acid and perfluorooctane sulfonate in Lake Victoria Gulf and in its source rivers. The first determined levels of perfluorinated alkylated substances in Lake Victoria ecosystem are presented. Variability in the concentrations of perfluorooctanoic acid or perfluorooctane ...
Fujimoto Yohko - - 2008
Linoleic acid (LA) preincubated with cyclooxygenase (COX)-1 or -2 inhibited prostaglandin (PG) formation from arachidonic acid (AA) catalyzed by the respective enzyme, but LA without the preincubation did not. 13S-Hydroperoxy-9Z,11E-octadecadienoic acid (13-HPODE) a hydroperoxy adduct of LA inhibited PG formation catalyzed by COX-1 or -2. 13S-Hydroxy-9Z,11E-octadecadienoic acid had no effect ...
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