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Sokmen Bahar Bilgin - - 2013
A series of some 3-,6-,7-,9-,12- monohydroxy tetradecanoic acids were evaluated for their antiurease, antielastase and antioxidant activities for the first time in this study. All the test compounds exhibited antioxidant, antielastase and antiurease activities. The relationship between the position of the hydroxy group and the enzyme inhibition effect is studied ...
Ichikawa Takahiro - - 2013
Amino acid ionic liquids provide suitable media for lyotropic liquid-crystalline systems whose self-organisation behaviour is tuneable by the selection of amino acid anions.
Tokunaga Yuji - - 2013
This communication describes the base- and acid-induced five-state translational isomerization of a [3]rotaxane containing two pairs of N-arylamine and N-alkylamine centers as binding sites for two dibenzo[24]crown-8 components. Gradual molecular shuttling of this [3]rotaxane is achieved in response to both the amount and strength of the added acid or base.
Minami Tsuyoshi - - 2013
Amino acids and their derivatives are recognized and analyzed in water using a turn-on fluorescent cucurbituril based sensor array. Multivariate analysis (LDA and HCA) clearly shows that the sensor array can discriminate amino acids from the corresponding amines which are produced by the action of amino acid decarboxylases.
Romero Alvaro - - 2013
Many hematophagous arthropods are stimulated by blood constituents to initiate feeding. We used a membrane-based feeding system to identify chemicals that stimulate acceptance and engorgement responses in various life stages of bed bugs. Water was fortified with a variety of compounds (e.g. salts, amino acids, vitamins, nucleotides, cholesterol and fatty ...
De Ninno Antonella - - 2013
Attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy has been used to investigate the effect of weak electromagnetic fields on the structure of L-glutamine (L-Gln) and L-phenylalnine (L-Phe) in aqueous solution. It has been found that the exposure to a DC field or a 50 Hz AC field, for a short ...
Chen Dai - - 2013
The impact of individual aromatic amino acid addition (l-phenylalanine, l-tryptophan and l-tyrosine) on non-volatile and volatile constituents in lychee wine fermented with Saccharomyces cerevisiae var. cerevisiae MERIT.ferm was studied. None of the added amino acids had any significant effect on the yeast cell count, pH, soluble solid contents, sugars and ...
Lee Dong-Sung - - 2013
In this study, we isolated a new sulfonic acid derivative, (Z)-4-methylundeca-1,9-diene-6-sulfonic acid (1), from the sea urchin collected from the Sea of Okhotsk. We established the structure of this new compound by analysis of NMR and HRMS data, along with comparison of the data with those of the related compounds ...
Díaz-Castro Javier - - 2013
Fe overload is a common consequence of the anaemia treatment, increasing the oxidative stress and promoting the accumulation of damaged biomolecules, with the subsequently impairment of cell functions. Oxidative stress and the role of folic acid preventing free radical damage have been extensively studied; nevertheless, no studies are available about ...
Elm Jonas - - 2013
The interaction between the simplest amino acid glycine in three different protonation states and common atmospheric nucleation precursors (\ce{H2O}, \ce{NH3} and \ce{H2SO4}) has been investigated using computational methods. Each nucleation step has been thoroughly sampled and statistical Gibb's free energies of formation have been calculated using M06-2X/6-311++G(3df,3pd). From the stepwise ...
Liu Ying - - 2014
In this study, the proximate composition, free amino acids content and 5'-nucleotides in frozen, canned and salted Agaricus bisporus (A. bisporus) were investigated. We found that the three kinds of A. bisporus products were good sources of protein, with amount varying in the ranges of 16.54-24.35g/100g (dry weight). Freezing, canning ...
Lee Chun-Young - - 2013
The first metal-free thermal protodeboronation of ortho- and para-phenol boronic acids in DMSO was developed. The protodeboronation was successfully applied to the synthesis of ortho- and meta-functionalized phenols using the boronic acid moiety as a blocking group and a directing group, respectively. Mechanistic studies suggested that this protodeboronation proceeds through ...
Pawluczyk Izabella Z A - - 2013
Sialoglycoproteins make a significant contribution to the negative charge of the glomerular anionic glycocalyx-crucial for efficient functioning of the glomerular permselective barrier. Defects in sialylation have serious consequences on podocyte function leading to the development of proteinuria. The aim of the current study was to investigate potential mechanisms underlying puromycin ...
Oyebanji Bukola Olunike BO Department of Animal Science, Obafemi Awolowo University, Ile-Ife, - - 2014
The anti-inflammatory and anti-nociceptive activity of betulinic acid (BA) was investigated in this study. The triterpene was isolated from the ethyl acetate extract of Tetracera potatoria and its structure was verified by IR and NMR spectroscopy. The bioactivity of this compound was assessed using carrageenan-induced paw oedema in rats and ...
Jurutka Peter W - - 2013
Three unreported analogues of 4-[1-(3,5,5,8,8-pentamethyl-5-6-7-8-tetrahydro-2-naphthyl)ethynyl]benzoic acid (1), otherwise known as bexarotene, as well as four novel analogues of (E)-3-(3-(1,2,3,4-tetrahydro-1,1,4,4,6-pentamethylnaphthalen-7-yl)-4-hydroxyphenyl)acrylic acid (CD3254), are described and evaluated for their retinoid X receptor (RXR) selective agonism. Compound 1 has FDA approval as a treatment for cutaneous T-cell lymphoma (CTCL), although treatment with 1 ...
Lee Joongwon - - 2013
Phosphorous-modified microporous and mesoporous ZSM-5 catalysts (XP/C-ZSM5) were prepared with a variation of phosphorous content (X = 0.17, 0.3, 0.7, 1.4, and 2.7 wt%), and they were applied to the production of light olefins (ethylene and propylene) through catalytic cracking of C5 raffinate. The effect of phosphorous content on the ...
West Charles E - - 2013
Polar organic compounds found in industrial process waters, particularly those originating from biodegraded petroleum residues, include 'naphthenic acids' (NA). Some NA have been shown to have acute toxicity to fish and also to produce sub-lethal effects. Whilst some of these toxic effects are produced by identifiable carboxylic acids, acids such ...
Bassoli A A DeFENS - Department of Food, Environmental and Nutritional Sciences, University of Milan, Via Celoria 2, 20133 Milan, Italy. Electronic address: - - 2014
The taste of different enantiomeric forms of amino acids has been deeply investigated because it represents the most impressive case of correlation between stereochemistry and flavour. Herein, we aimed to elucidate the molecular activity of d- and l-amino acids using an in vitro system based on a cellular model overexpressing ...
Choi Seunghye S Department of Biological Sciences, Konkuk University, Seoul - - 2013
Cytochrome P450 4A11 (CYP4A11) is a fatty acid hydroxylase enzyme expressed in human liver. It catalyzes not only the hydroxylation of saturated and unsaturated fatty acids, but the conversion of arachidonic acid to 20-hydroxyeicosatetraenoic acid (20-HETE), a regulator of blood pressure. In this study, we performed a directed evolution analysis ...
Canakci Songül S Department of Biology, Firat University, Elazig-231 69, Turkey. - - 2013
In this study, the ameliorating effect of salicylic acid (SA), serving as a mediator for protecting plants, against cadmium (Cd) toxicity in Cicer arietinum was investigated. The seedlings of Cicer arietinum treated with increasing Cd concentrations (0, 25, 50, 100 microM ) inhibited seedling length, reduced fresh and dry weight, ...
Tyihák Erno - - 2013
A simple observation is the basis of the development of BioArena system: according to the first observations during the biological incubation after inoculation there is formaldehyde (HCHO) emission from the chromatographic spots; in this emission process, the level of HCHO molecules decreases time dependently. In fact, the antibiotic effect of ...
Scaramuzzo Francesca A - - 2013
Reliable determination of the enantiomeric excess of free amino acids can be obtained by measuring the induced circular dichroism of a multicomponent assembly formed by a modified tris(2-pyridylmethyl)amine ligand, a zinc salt, and the amino acid of interest. The systems furnish reliable information for all natural amino acids.
Aki Tsunehiro - - 2013
The effects of a seaweed carotenoid, fucoxanthin, and its physiological metabolite, fucoxanthinol, on the biosynthesis of polyunsaturated fatty acids (PUFA) were investigated using cultured rat hepatoma BRL-3A. The metabolism of α-linolenic acid (18:3n-3) was suppressed by the addition of these carotenoids, resulting in a decrease in the content of eicosapentaenoic ...
Kalutharage Nishantha - - 2013
It cuts two ways: The cationic [Ru-H] complex catalyzes selective coupling of α- and β-amino acids with ketones to form α-alkylated ketone products. The reaction involves CC and CN bond cleavage which result in regio- and stereoselective alkylation using amino acids. A broad substrate scope and high functional-group tolerance is ...
Yokouchi Yusuke - - 2013
(+)-Usnic acid (UA) has been known to be a strong uncoupler, and mitochondrial and endoplasmic reticulum (ER)-related stresses are suggested to be involved in the mechanism of hepatotoxicity. However, it has not been clarified whether UA causes toxicity in other mitochondria-rich organs such as the heart. We elucidated whether UA ...
Ren Jiale - - 2013
Herein, we introduce a specially designed domain-confined macroporous catalyst, namely, the Co3O4 nanocrystals anchored on a TiO2 nanotube array catalyst, which was synthesized by using the mercaptoacetic acid induced surface-grafting method. This catalyst exhibits much better performance for catalytic soot combustion than the conventional TiO2 powder supported one in gravitational ...
Malik Nasir S A - - 2013
The effects of biotic and abiotic stresses on changes in amino acids and polyamine levels in Satsuma orange (Citrus unshiu; cultivar Owari) leaves were investigated. Asian citrus psyllids (Diaphorina citri (Kuwayama) (ACP) infestation was used to induce biotic stress while a water deficit was imposed to induce abiotic stress. Potted ...
Davidson Michael H - - 2013
Fish oil contains a complex mixture of omega-3 fatty acids, which are predominantly eicosapentaenoic acid (EPA), docosapentaenoic acid, and docosahexaenoic acid (DHA). Each of these omega-3 fatty acids has distinct biological effects that may have variable clinical effects. In addition, plasma levels of omega-3 fatty acids are affected not only ...
Giese Henriette - - 2013
Growth conditions are known to affect the production of secondary metabolites in filamentous fungi. The influence of different nitrogen sources and the transcription factor AreA on the production of mycotoxins in Fusarium graminearum was examined. Growth on glutamine or NH4-sources was poor and asparagine was found to be a preferential ...
Hur Sun Jin - - 2013
The purpose of this study was to examine the effects of biopolymer encapsulation on the digestion of trans fatty acids by using an in vitro human digestion model. We simulated the main components of the human digestive system using a dialysis tubing system that contained synthetic saliva, gastric juice, and ...
Wang Huijun - - 2013
Two homogenous water-soluble polysaccharides (TPSR4-2B and TPSR4-2C) were obtained from pre-infused green tea. Their average molecular weights were estimated to be 41 kDa and 28 kDa, respectively. A combination of composition, methylation and configuration analysis, as well as NMR spectroscopy, indicated that both TPSR4-2B and TPSR4-2C were poly-(1-4)-α-D-galactopyranosyluronic acid in ...
Tian Ye - - 2013
After reading with interest the study "The effects of hyaluronic acid and carboxymethylcellulose in preventing recurrence of urethral stricture after endoscopic internal urethrotomy: a multicenter, randomized controlled, single-blinded study", we would like to add our comment.
Ye Jing - - 2013
Enantioselective oxidative stress and toxin release from Microcystis aeruginosa after exposure to the chiral herbicide diclofop acid were investigated. Racemic diclofop acid, R-diclofop acid and S-diclofop acid induced reactive oxygen species (ROS) generation, increased the concentration of malondialdehyde (MDA), enhanced the activity of superoxide dismutase (SOD) and triggered toxin release ...
Uwai Yuichi - - 2013
Abstract Background: Some food components influence drug elimination. Previously, we found that caffeic acid, present in coffee, fruits, and vegetables, strongly inhibited human homologs of organic anion transporters (OATs) OAT1 and OAT3, which are responsible for renal tubular secretion of anionic drugs. In this study, we examined the effect of ...
Moretti Morgana - - 2013
The present study investigated the involvement of the PI3K, GSK-3β, heme oxygenase-1 (HO-1) and mTOR in the antidepressant-like effect of ascorbic acid in the tail suspension test (TST). Male Swiss mice were pretreated with ascorbic acid (1 mg/kg, p.o.) or vehicle and 45 min after, LY294002 (10 μg/site, i.c.v., reversible PI3K inhibitor), rapamycin ...
Nishikawa Keisuke - - 2013
1-O-cis-Cinnamoyl-β-d-glucopyranose is known to be one of the most potent allelochemical candidates and was isolated from Spiraea thunbergii Sieb by Hiradate et al. (2004), who suggested that it derived its strong inhibitory activity from cis-cinnamic acid, which is crucial for phytotoxicity. In this study, key structural features and substituent effects ...
Vavouraki Aikaterini I - - 2013
The use of abundant waste materials with high carbohydrate content may contribute substantially to reduction of biofuels production cost. The present study aimed at optimizing the combined effect of thermo-chemical pretreatment and enzymatic hydrolysis of kitchen wastes (KW) for maximizing the production of fermentable soluble sugars. To this end, acid ...
Zhao Mei - - 2013
Folic acid is a water-soluble B-complex vitamin. Increasing evidence demonstrates that physiological supply of folic acid during pregnancy prevents from folic acid deficiency-related neural tube defects (NTDs). Previous studies showed that maternal lipopolysaccharide (LPS) exposure caused NTDs in rodents. The aim of this study was to investigate the effects of ...
Ratti Regiane Priscila - - 2013
H2 production from cellulose, using rumen fluid as the inoculum, has been investigated in batch experiments. Methanogenic archaea were inhibited by acid pre-treatment, which also inhibited cellulolytic microorganisms, and in consequence, the conversion of cellulose to H2. Positive results were observed only with the addition of cellulase. H2 yields were ...
Yilmaz Neşe - - 2013
Rice bran is a nutritionally valuable by-product of paddy milling process. An experimental infrared stabilization system was developed to prevent the rancidity. Free fatty acid content of raw and stabilized rice bran samples was monitored at 15-days of intervals during 6 months of storage. Besides, energy consumption was determined. Free ...
Grasso S - - 2013
Lipoic acid plays a crucial role as antioxidant and metabolic component of enzymes involved in glucose metabolism of different cell types. Choline alphoscerate (α-glyceryl-phosphoryl-choline [αGPC]) is a semisynthetic derivative of phosphatidylcholines representing, among acetilcholine precursors, a cholinergic drug. In the present study, we evaluated the expression of some proliferation and ...
Pencík Ales - - 2013
The native auxin, indole-3-acetic acid (IAA), is a major regulator of plant growth and development. Its nonuniform distribution between cells and tissues underlies the spatiotemporal coordination of many developmental events and responses to environmental stimuli. The regulation of auxin gradients and the formation of auxin maxima/minima most likely involve the ...
Xu Gang G The Key Laboratory of State Administration of Traditional Chinese Medicine, Chinese Materia Medica Processing Engineering Center of Liaoning Province, School of Pharmacy, Liaoning University of TCM, No. 77,Life 1(st) road, Jinzhou District, Dalian 116600, - - 2013
RW-Cb, the first processed product of Cibotium barometz (L.) J. Sm. (Dicksoniaceae) in TCM has been widely used to treat osteoporosis, a major worldwide health problem, influencing more and more people in the word et al. To do research on RW-Cb, one processed product of Cibotium barometz (L.) J. Sm. ...
Naveen Shivanna - - 2013
In this study polyphenols from pomegranate peel, and n-3 fatty acids with polyphenols from flax seed were evaluated for their anti depression properties in mice exposed to chronic mild stress (CMS). A total of 40 mice initially trained to consume 2% sucrose solution for 3 weeks were then divided into ...
Radhakrishnakartha Harikrishnan - - 2013
Abstract Background: Chronic ethanol exposure causes hyperlipidemia. The present study was designed to investigate the impact of ascorbic acid supplementation on ethanol induced hyperlipidemia in testis and to compare it with that of abstinence from taking alcohol. Methods: Thirty-six male guinea pigs were divided into two groups and were maintained ...
Li Zhiqiang - - 2013
The response and behavior of bamboo green, timber, and yellow of moso bamboo (Phyllostachys heterocycla) to three pretreatments, sulfite (SPORL), dilute acid (DA), and alkali (NaOH), were investigated and compared with varied chemical loadings at 180°C for 30min with a 6.25:1 (v/w) liquor-to-bamboo ratio. All the pretreatments improved the enzymatic ...
Dwivedi Nidhi - - 2013
We investigated protective efficacy of α-lipoic acid (LA), an antioxidant against arsenic and DDVP co-exposed rats. Biochemical variables suggestive of oxidative stress, neurological dysfunction, and tissue histopathological alterations were determined. Male rats were exposed either to 50ppm sodium arsenite in drinking water or in combination with DDVP (4mg/kg, subcutaneously) for ...
Pan Yang - - 2013
Asymmetric esterification of racemic mandelic acid (MA) was conducted in 1,2-dichloroethane using lipase Novozym 435 as catalyst. Different alcohols were screened for the esterification to achieve high conversion and enantioselectivity. The results show that ethanol is the best alcohol substrate among tested alcohols and long-chain alcohols show lower enantioselectivities. The ...
Chen Christina S-Y - - 2013
Differential sensing of dietary fat and fatty acids by the oral cavity is proposed to regulate the susceptibility to obesity. In the current experiments, animals which differ in their susceptibility to obesity were used to investigate the influence of the oral cavity on the preference for the polyunsaturated fatty acid, ...
Roca-Rodríguez M M - - 2013
Malnutrition affects 40-50% of patients with ear, nose and throat (ENT) cancer. The aim of this study was to assess changes induced by a specific nutritional supplement enriched with n-3 polyunsaturated fatty acids, fiber and greater amounts of proteins and electrolytes, as compared with a standard nutritional supplement, on markers ...
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