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Park Inyu - - 2014
The samarium-doped barium cerate (BaCe0.8Sm0.2O(3-delta), BCS) nano crystalline powders were synthesized via citric-nitrate method. The BCS nanopowders were prepared with various molar ratio of citric acid to metal nitrate. The pure perovskite structure was obtained from the BCS calcinated at 1200 degrees C and its crystalline size was increased with ...
Giacaman Rodrigo A RA Cariology Unit, Department of Oral Rehabilitation and Interdisciplinary Excellence Research Program on Healthy Aging (PIEI-ES), University of Talca, 2 Norte 685, Escuela de Odontología, Talca, Chile, - - 2014
Based on scarce evidence, fatty acids have been described as anticariogenic. The aim was to evaluate the effect of different types of fatty acids on enamel demineralization and on the cariogenic properties of Streptococcus mutans biofilms on a biofilm/caries model. Mature biofilms of S. mutans UA159 growing on bovine enamel ...
Aykut-Yetkiner Arzu A University of Zurich, Clinic for Preventive Dentistry, Periodontology and Cariology, Zurich, Switzerland; University of Ege, Faculty of Dentistry, Department of Pediatric Dentistry, Izmir, Turkey. Electronic address: - - 2014
To investigate the effect of saliva substitutes on enamel erosion in vitro. Material and methods: A total of 204 bovine enamel samples were embedded in acrylic resin and allocated to 17 groups (n=12). The specimens were eroded in an artificial mouth (3 d; 6×30 s/d, flow rate: 2ml/min) using citric ...
Sharma Abhishek A Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz khas, New Delhi 110016, - - 2014
Protease and fatty acids are known to serve as pathogenic factors against root-knot nematodes. Here, we utilized Karanja deoiled cake as a nitrogen source for the first time in induction of protease by Paecilomyces lilacinus. Fatty acids, especially butyric acid, have also been detected in the same fungal culture filtrate.
Bertacci Angelica A 1 School of Dentistry, Department of Biomedical and Neuromotor Sciences (DiBiNeM), University of Bologna, Bologna - - - 2014
Purpose: The aim of this study was to evaluate enamel acid-induced structural changes after 2 different treatments, by means of Raman and infrared (IR) spectroscopy analyses, and to correlate these findings with permeability measured as fluid discharge from outer enamel. Methods: Two different treatments were investigated: 10 enamel slices were ...
Al-Kawari Huda M - - 2014
The effects of fluoride and CPP-ACP before bracket bonding on the shear bond strength of orthodontic brackets have been reported with contradicting results. The objective of this in vitro study was to evaluate the effect of different preventive agents namely; casein phosphopeptide-amorphous-calcium-phosphate (CPP-ACP), fluoride-containing-CPP-ACP (CPP-ACPF) and 5% sodium fluoride (5%NaF), ...
Manuela Díaz-Monroy Jennifer J Universidad Autónoma del Estado de México, Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO), Jesús Carranza esq. Paseo Tollocan, Col. Universidad, C.P. 50130, Toluca, Estado de México, - - 2014
Several scientific reports have shown the effects of Er:YAG laser irradiation on enamel morphology. However, there is lack of information regarding the morphological alterations produced by the acid attack on the irradiated surfaces. The aim of this study was to evaluate the morphological changes produced by acid dissolution in Er:YAG ...
Singh Harpal H National Botanical Research Institute (NBRI) , Council of Scientific and Industrial Research (CSIR), Rana Pratap Marg, Lucknow, 226001 Uttar Pradesh, - - 2014
Tomatoes are one of the most consumed crops in the whole world because of their versatile importance in dietary food as well as many industrial applications. They are also a rich source of secondary metabolites, such as phenolics and flavonoids. In the present study, we described a method to produce ...
Murata Toshihiro T Department of Pharmacognosy, Tohoku Pharmaceutical - - 2014
An extract of whole plants of Pycnanthemum flexuosum showed an inhibitory effect on hyaluronidase activity. From an 80% acetone extract of aerial parts, 3-[(3E)-4-phenylbut-3-enoylamino]propionic acid, 3-O-β-D-glucuronopyranosyl- echinocystic acid 28-O-β-D-xylopyranosyl-(1→3)-[3,4-diacetyl-β-D-xylopyranosyl- (1→4)]-a-L-rhamnopyranosyl-(1→2)-a-L-arabinopyranosyl ester, vanillic acid 1-O-[(5-O-syringoyl)-β-D-apiofuranosyl]-(1→2)-β-D-glucopyranoside, and (4S,5R)-4-hydroxy-5-phenyl-tetrahydrofuran-2-one were isolated together with 30 known compounds. Six known compounds were isolated from an ...
Zhang Luan L School of Resource and Environmental Sciences, Wuhan University, Wuhan, Hubei 430079, PeopleÎ│s Republic of - - 2014
The roots of metallophytes serve as the key interface between plants and heavy metal-contaminated underground environments. It is known that the roots of metallicolous plants show a higher activity of acid invertase enzymes than those of non-metallicolous plants when under copper stress. To test whether the higher activity of acid ...
Dalir Neda N Department of Soil Science, College of Agriculture, Isfahan University of Technology, 84154 Isfahan, - - 2014
This study investigated the effect of exogenous amino acids on apoplastic and symplastic uptake and root to shoot translocation of nickel (Ni) in two wheat cultivars. Seedlings of a bread (Triticum aestivum cv. Back Cross) and a durum wheat cultivar (T. durum cv. Durum) were grown in a modified Johnson ...
Huang Yijing Y Department of Clinical Nutrition, Shanghai No.9 People's Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizhaoju Road, Shanghai, - - 2014
Periodontal diseases represent the most common chronic inflammatory diseases in humans and a major cause of tooth loss. Combining mass spectrometry-based ionomics and a targeted lipidomics on fatty acids metabolites, we identified significant alterations in redox status and fatty acids metabolism in saliva in response to chronic inflammation and oxidative ...
Wu Xingyuan - - 2014
The evolution of rice straw char reactivity during reaction with NO was examined in differential reactor at 900 and 1000 °C. Original and acid-washed rice straw chars were used. Surface area and mineral content of char samples with different conversion were analyzed. The reactivity of the acid-washed char increased until ...
Eversole Sandra L SL The Procter & Gamble Company, Mason, OH, - - 2014
To investigate the relative erosion protection potential of marketed dentifrices formulated with either stabilised stannous fluoride (SnF2 ), sodium fluoride (NaF) and/or sodium monofluorophosphate (SMFP) using an established laboratory erosion cycling model. Sound enamel cores from extracted, human enamel were cleaned, ground and polished, soaked in pooled saliva (pellicle formation) ...
Faller Robert V RV Kornberg School of Dentistry, Temple University, Philadelphia, PA, - - 2014
To assess the potential of a stabilised stannous (Sn)-containing NaF dentifrice (Oral B/blend-a-Med(®) Pro-Expert), in addition to a number of other marketed European dentifrices formulated with various fluoride actives and two control dentifrices, to protect enamel against erosive acid damage. Cores of human enamel (four per group) were soaked in ...
Baig Arif A AA The Procter & Gamble Company, Mason, OH, - - 2014
To compare the ability of two active ingredients - sodium fluoride (NaF) and stannous fluoride (SnF2 ) - to inhibit hydroxyapatite (HAP) dissolution in buffered acidic media. Two in vitro studies were conducted. HAP powder, which is representative of tooth mineral, was pretreated with: test solutions of NaF or SnF2 ...
Feitosa Victor P VP Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil; King's College London Dental Institute, London, United Kingdom. Electronic address: - - 2014
To evaluate the effects of acidic functional monomers with different hydrophilicity and spacer carbon chain length on the degree of conversion (DC), wettability (contactangle), water sorption (WS) and ultimate tensile strength (UTS) of experimental one-step self-etch adhesives (1-SEAs). A series of standard resin blends was prepared with each formulation containing ...
Passos Vanara F VF 1 Post-graduation Program, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará , Brazil - - 2014
Abstract Objective: This in vitro study aimed to evaluate the effect of a low intensity diode laser (λ=808 nm; 60 J/cm(2)) associated with stannous fluoride on the inhibition of dentin erosion by assessing percentage of superficial hardness loss (%SHL) and calcium release into the acid solution. Materials and methods: Human root dentin ...
Imran Muhammad - - 2014
Current study has been designed to estimate the possible antioxidant, antimicrobial and hemolytic potential of Ficus benjamina different parts (leaves, stem and root). All examined extracts and fractions were significantly rich in antioxidants and exhibited potent antimicrobial activity. GC/MS analysis of essential oil identified four compounds in stem and eight ...
Zhu Jia Jun JJ Research postgraduate student, Paediatric Dentistry and Orthodontics, Faculty of Dentistry, the University of Hong Kong, Hong Kong - - 2014
The laboratory-based enamel acid-etching doctrine with 30% to 50% phosphoric acid for 60 seconds to generate the maximum amount of Type 1 and/or Type 2 etch pattern has been established for more than 30 years. However, this recommendation may not be clinically relevant. The purpose of this systematic review was ...
Kulichikhin Konstantin K Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8601, - - 2014
Formation of a barrier to radial oxygen (O2 ) loss (ROL) in the root is an important adaptation of plants to root flooding, but the biochemical changes in plant roots where the barrier is formed are unclear. In this study, we analyzed metabolic profiles and gene expression profiles in roots ...
Ravikumar J J Department of Conservative Dentistry & Endodontics, Drs. S & NR Siddhartha Institute of Dental Sciences, Chinaoutpally, Gannavaram, Andhra Pradesh, - - 2014
Background: To evaluate the effect of EDTA, Maleic acid, Citric acid and MTAD Irrigating Solutions on the shear bond Strength of A-H plus sealer. Materials & Methods: Forty mandibular single rooted premolar teeth with straight roots were taken, decoronated and instrumented using Protaper rotary instruments to size #F3, 0.09 taper, ...
Koecher Katie J - - 2014
Gut bacteria ferment fiber at different rates to primarily short chain fatty acids (SCFA) and gas while proteins are metabolized to SCFA, branched chain fatty acids (BCFA), gas, and undesirable metabolites. Large volumes of gas produced in vivo may contribute to bloating and flatulence in an individual. The objectives of ...
Memarpour Mahtab - - 2014
Purpose: To evaluate microleakage from an antibacterial adhesive and bonding agent added to the ssure sealant on intact enamel. Materials and Methods: One hundred twenty sound third mandibular molars were randomly divided into 6 groups of 20 teeth each. Occlusal pits and ssures were sealed with un lled sealant material ...
Elkassas Dina D Assistant Professor at Department of Restorative Dentistry, Faculty of Oral and Dental Medicine, Misr International University, - - 2014
To assess enamel remineralization of different calcium-phosphate and fluoride delivery systems. Artificial caries lesions were created on 115 extracted human molars. Specimens assigned according to remineralizing agent into five groups: G1: Control (artificial saliva), G2: Clinpro™ white varnish, G3: Relief, G4: Tooth Mousse Plus, G5: Vanish(XT)TM. Surface micro-hardness (SMH), surface ...
Lim Chee Shan CS Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore. pumera@ntu.edu.sg - - 2014
Well-defined graphene nanosheets have become increasingly popular in the electrochemical detection and quantification of small molecules. In this work, the electrochemical oxidation of biomarkers such as uric acid, ascorbic acid, dopamine, NADH and DNA bases, namely guanine and adenine, was performed using cyclic voltammetry and differential pulse voltammetry to compare ...
Saghiri Mohammad Ali MA Department of Ophthalmology & Visual Sciences, and Biomedical Engineering, University of Wisconsin, Madison, Wisconsin, - - 2014
To evaluate the effect of storage pH on solubility of white mineral trioxide aggregate (WMTA), bioaggregate (BA), and nano WMTA cements. Forty-eight moulds randomly allocated into three groups of pH 4.4 (group A), 7.4 (group B), and 10.4 (group C); and one empty as control in each group. Each group ...
Díaz-Monroy Jennifer Manuela JM 0000-0002-7419-9310 Facultad de Odontología, Centro de Investigación y Estudios Avanzados en Odontología (CIEAO), Universidad Autónoma del Estado de México, Jesús Carranza Esq. Paseo Tollocan, Col. Universidad, 50130 Toluca, MEX, - - 2014
Background. An increase in the acid resistance of dental enamel, as well as morphological and structural changes produced by Er:YAG laser irradiation, has been reported. Purpose. To evaluate the chemical changes associated with acid resistance of enamel treated with Er:YAG laser. Methods. Forty-eight enamel samples were divided into 4 groups ...
Yadav Kavita K Molecular Microbial Biochemistry Laboratory, Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, - - 2014
Oxalate secretion was achieved in Pseudomonas fluorescens ATCC 13525 by incorporation of genes encoding Aspergillus niger oxaloacetate acetyl hydrolase (oah), Fomitopsis plaustris oxalate transporter (FpOAR) and Vitreoscilla hemoglobin (vgb) in various combinations. Pf (pKCN2) transformant containing oah alone accumulated 19 mM oxalic acid intracellularly but secreted 1.2 mM. However, in ...
Bolhari Behnam B Dental Research Center, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran; Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, - - 2014
The aim of this study was to compare the surface microhardness of BioAggregate, ProRoot MTA, and CEM Cement when exposed to an acidic environment or phosphate-buffered saline (PBS) as a synthetic tissue fluid. Ninety cylindrical molds made of polymethyl methacrylate with an internal diameter of 6 mm and height of ...
Neilands Jessica J Department of Oral Biology, Faculty of Odontology, Malmö University, Malmö, Sweden. Electronic address: - - 2014
To investigate the effect of delmopinol and fluoride alone or in combination on acid adaptation and acid production in plaque biofilm bacteria in vitro. The effect of delmopinol and fluoride on acid adaptation was tested by exposing the biofilm bacteria, grown in a mini-flow cell system under static conditions, to ...
Doig Michael M School of Chemistry, University of Edinburgh , West Mains Road, Edinburgh EH9 3JJ, - - 2013
The structure and friction of fatty acid surfactant films adsorbed on iron oxide surfaces lubricated by squalane are examined using large-scale molecular dynamics simulations. The structures of stearic acid and oleic acid films under static and shear conditions, and at various surface coverages, are described in detail, and the effects ...
Mohammed Nasrine R NR Barts and The London School of Medicine and Dentistry, Queen Mary University, Dental Physical Sciences Unit, Centre for Oral Growth and Development, London, E1 4NS, United Kingdom. Electronic address: - - 2013
The aim of the present study was to measure the effects of fluoride concentration on the real-time in vitro demineralization of enamel during exposure to caries-simulating conditions using Scanning Microradiography (SMR). Enamel blocks obtained from non-carious human molars were fixed in SMR environmental cells, through which acidic solutions (0.1M acetic ...
Damkier Helle H HH Department of Biomedicine, Aarhus University, - - 2013
It is disputed if ameloblasts in the maturation zone of the enamel organ mainly buffer protons released by hydroxyapatite (HA) crystal growth or if they periodically secrete protons to create alternating acidic and alkaline conditions. The latter hypothesis predicts alternating pH regimes in maturing enamel, which would be affected by ...
Ding Wen-Bing - - 2013
A new intact resin glycoside (3) and two glycosidic acids (1 and 2), all having a common trisaccharide moiety and (11S)-hydroxytetradecanoic acid or (3S,11S)-dihydroxytetradecanoic acid as the aglycone, were obtained from the roots of Porana duclouxii. Their structures were elucidated by spectroscopic analyses and chemical correlations. These compounds represent the ...
Magaia Telma - - 2013
The harvesting, utilization and marketing of indigenous fruits and nuts have been central to the livelihoods of the majority of rural communities in African countries. In this study we report on the content of dietary fiber, minerals and selected organic acids in the pulps and kernels of the wild fruits ...
Ballal N V NV Manipal College of Dental Sciences, Manipal University, Karnataka, India. - - 2013
Aim of this study was to evaluate the effect of 7% maleic acid and 17% ethylenediaminetetraacetic acid (EDTA) on the shear bond strength of RealSeal SE sealer to root canal dentin. Twenty incisors were split into coronal, middle and apical third and were treated in the following manner: Group 1: ...
Gómez-Hurtado Mario A MA Area Académica de Química, Universidad Autónoma del Estado de Hidalgo, Km 4.5 Carretera Pachuca-Tulancingo, Mineral de la Reforma, Hidalgo 42184, - - 2013
The alkaloid extract from the roots of Chromolaena pulchella provided two new pyrrolizidine alkaloids, elucidated as (-)-supinidine triviridiflorate (1) and (-)-supinidine diviridiflorate (2) based on their physical and spectroscopic properties. Their absolute configuration was determined by chemical correlation with (-)-supinidine (3) and (+)-viridifloric acid (4).
Mi Junling - - 2013
Two new triterpenoids were isolated from the ethanolic extract of the roots of Ampelopsis japonica (Thunb.) Makino. Their structures were defined as 3α-trans-feruloyloxy-2α-O-acetylurs-12-en-28-oic acid (1) and methyl 3α-trans-feruloyloxy-2α-hydroxyurs-12-en-28-oate (2) on the basis of spectral analysis.
Ahn Jihoon - - 2013
In order to use iron oxide nanoparticles (Fe3O4) in various applications, a surface modification that provides colloidal stability and additional functionality to the nanoparticles is necessary. For the modification of the nanoparticle surface with ligand molecules, the ligand molecule should contain an anchor group that has a strong affinity for ...
Cai Shenwen - - 2013
The present study aimed to test a hypothesis that acid invertases in root of metallophytes might play important roles in root growth under heavy metal stress. Plants of two contrasting populations, one from an ancient Cu mine (MP) and the other from a non-contaminated site (NMP), of metallophyte Elsholtzia haichowensis ...
Zaima Kazumasa - - 2013
A new amino acid-sesquiterpene adduct, isoheleproline (1), was isolated from the roots of Inula helenium (elecampane), together with four known sesquiterpene lactones (2-5). The planar configuration of 1 was elucidated on the basis of spectroscopic data analysis, and the relative configuration of 1 was determined by performing a detailed analysis ...
Guo Peijun P School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, P.R. - - 2014
The aim of this study was to investigate the correlation between root respiration and the percentage of active components in licorice (Glycyrrhiza uralensis Fisch.), in order to provide a foundation for the regulation and modulation of the quality of G. uralensis. Respiration efflux of annual and biennial G. uralensis was ...
Vints Inna - - 2013
Aryl boronic acids or pinacol esters containing EDG were converted in good yields and fast reactions to the corresponding aryl fluorides by using the readily obtainable solutions of AcOF. In reactions with aryl boronic acids containing EWG at the para position there are two competing forces one directing the fluorination ...
Paepegaey Aude-Marine - - 2013
To compare three instruments for their ability to quantify enamel loss after acid erosion. 6 randomized parallel groups of bovine enamel samples were subjected to citric acid (higher acidity) or orange juice (lower acidity) erosion and remineralisation in a cycling model. Two protected shoulders were created on each of the ...
Bosco Renato - - 2013
Plant hormones play a crucial role in controlling plant growth and development. These groups of naturally occurring substances trigger physiological processes at very low concentrations, which mandate sensitive techniques for their quantitation. This paper describes a method to quantify endogenous (±)-2-cis-4-trans-abscisic acid, indole-3-acetic acid, indole-3-propionic acid, and indole-3-butyric acid. The ...
Yang Song-Yi - - 2013
The aim of this study was to examine the effects of 45S5 bioactive glass (BAG) on the acid neutralizing, mechanical and physical properties of pit and fissure sealants. 45S5BAG (<25μm) was mixed with the silanized glass (180±30nm) and added into a resin matrix [Bis-GMA/TEGDMA 50/50 (wt%) containing 1% of DMAEMA/CQ ...
Knittel Fabien - - 2013
The interaction of ligands with the surface of quantum dots (QD) was studied using tritiated oleic acid as an ultra-sensitive reporter. The use of labeled oleic acid not only permitted to quantify the number of ligands attached to the surface of QDs of various sizes but also enabled the investigation ...
Teng Xiyao - - 2013
The surface characteristics of graphene oxide nanosheets (GO) treated respectively with tartaric acid, malic acid and oxalic acid, have been investigated by mainly using optical spectroscopic methods including Fourier transform infrared spectroscopy (FT-IR), Ultraviolet-visible (UV-Vis) absorption and Raman spectroscopy. Additionally, the electrochemical property of the products has also been studied. ...
Runnel Riina - - 2013
The objective of the present paper is to report results from oral biologic studies carried out in connection with a caries study. Samples of whole-mouth saliva and dental plaque were collected from initially 7- to 8-year-old subjects who participated in a 3-year school-based programme investigating the effect of the consumption ...
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