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https://www.readbyqxmd.com/read/29775712/rheological-and-fracturing-characteristics-of-a-novel-sulfonated-hydroxypropyl-guar-gum
#1
Liewei Qiu, Yiding Shen, Tao Wang, Chen Wang
A series of sulfonated hydroxypropyl guar gum (SHG) samples with different degrees of substitution (DSs) were prepared, and the SHG solution and SHG fracturing fluid were prepared and analyzed. The SHG aqueous solutions with different DSs all exhibit shear thinning behavior, which is well correlated with the Ostwald-deWaele model. Owing to the electrostatic repulsion of SHG molecular chains, SHG solutions with a higher DS will exhibit weaker thixotropic performance and strong anti-salinity ability. In addition, the SHG fracturing fluids, which were formed by interactions between SHG and organic zirconium, exhibit good temperature- and shear-resistant properties, proppant suspension properties, and salt tolerance...
May 15, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29774768/the-effects-of-boswellia-serrata-gum-resin-on-the-blood-glucose-and-lipid-profile-of-diabetic-patients-a-double-blind-randomized-placebo-controlled-clinical-trial
#2
Saeed Mehrzadi, Bahreh Tavakolifar, Hasan Fallah Huseini, Seyed Hamdollah Mosavat, Mojtaba Heydari
Regarding preclinical evidence for antidiabetic effects of Boswellia serrata, we evaluated antihyperglycemic and lipid-lowering effects of Boswellia serrata gum resin in type 2 diabetic patients. Fifty-six diabetic patients were randomly allocated to 2 groups to receive 250 mg of the Boswellia serrata gum resin or placebo twice daily for 8 weeks in addition to their routine antidiabetic treatments. Although there was a considerable reduction after the intervention in the field of fasting blood sugar, glycosylated hemoglobin, and triglyceride in the Boswellia serrata gum resin group, no significant difference was observed in all outcome measures between the 2 groups at the end of the study...
January 2018: Journal of evidence-based integrative medicine
https://www.readbyqxmd.com/read/29773365/a-synbiotic-multiparticulate-microcapsule-for-enhancing-inulin-intestinal-release-and-bifidobacterium-gastro-intestinal-survivability
#3
Bahgat Fayed, Amira Abood, Hoda S El-Sayed, Amal M Hashem, Nayra S H Mehanna
A novel synbiotic multiparticulate microparticle was produced in the current study to expand the synbiotic industrial applications. Initially, the inulin was fabricated into PLGA nanoparticles. After the inulin entrapment efficiency was boosted to reach 92.9 ± 8.4% by adjusting the formulation parameters, the developed particles were characterized by different techniques such as particle size analyzer, TEM, and TLC. The obtained data showed that the particle size was 115.8 ± 82.7 nm, the particles had smooth surface and round shape, and the fabrication procedure did not affect the integrity of the inulin...
August 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29773262/-smoking-cessation-pharmacological-strategies-different-from-standard-treatments
#4
REVIEW
M Underner, J Perriot, G Peiffer, G Harika-Germaneau, N Jaafari
INTRODUCTION: Three drugs are used as an aid for smoking cessation: nicotine replacement therapy (NRT), varenicline and bupropion. Standard pharmacological strategies have proven their efficacy but may have poor efficacy, especially among "Hard-core smokers" who display low smoking abstinence rates and high relapse rates. OBJECTIVES: Systematic literature review of data on pharmacological strategies for smoking cessation which are different from standard treatments...
May 14, 2018: Revue de Pneumologie Clinique
https://www.readbyqxmd.com/read/29772340/effects-of-temperature-and-solvent-condition-on-phase-separation-induced-molecular-fractionation-of-gum-arabic-hyaluronan-aqueous-mixtures
#5
Bing Hu, Lingyu Han, Zhiming Gao, Ke Zhang, Saphwan Al-Assaf, Katsuyoshi Nishinari, Glyn O Phillips, Jixin Yang, Yapeng Fang
Effects of temperature and solvent condition on phase separation-induced molecular fractionation of gum arabic/hyaluronan (GA/HA) mixed solutions were investigated. Two gum arabic samples (EM10 and STD) with different molecular weights and polydispersity indices were used. Phase diagrams, including cloud and binodal curves, were established by visual observation and GPC-RI methods. The molecular parameters of control and fractionated GA, from upper and bottom phases, were measured by GPC-MALLS. Fractionation of GA increased the content of arabinogalactan-protein complex (AGP) from ca...
May 14, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29768084/effect-of-phototherapy-on-masseter-and-anterior-temporal-muscles-before-induction-of-fatigue-a-randomized-sham-controlled-blind-clinical-trial
#6
Camila Haddad Leal de Godoy, Lara Jansiski Motta, Washington Steagall Júnior, Marcela Leticia Leal Gonçalves, Daniela Fátima Teixeira da Silva, Raquel Agnelli Mesquita-Ferrari, Aldo Brugnera Júnior, Sandra Kalil Bussadori
OBJECTIVE: This is a randomized, sham-controlled, blind clinical trial that aimed to evaluate the effect of phototherapy on bite force, mandibular range of motion, sensitivity to palpation, and fatigue in the masseter and anterior temporal muscles of young patients when administered before the induction of fatigue. MATERIALS AND METHODS: Fifty-two healthy volunteers aged 18-23 years were randomly allocated to a laser group and sham group. Both groups were submitted to a clinical evaluation to record mandibular range of motion, bite force, muscle sensitivity to palpation, and muscle fatigue...
May 16, 2018: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/29762778/the-effect-of-%C3%AE-mannanase-on-nutrient-utilization-and-blood-parameters-in-chicks-fed-diets-containing-soybean-meal-and-guar-gum
#7
Justina V Caldas, Karen Vignale, Nirun Boonsinchai, Jinrong Wang, Monticha Putsakum, Judith A England, Craig N Coon
The present study was conducted to determine whether the addition of β-mannanase in broiler feed changes hormonal profiles in the blood and broiler performance and nutrient availability. Five hundred and four Cobb male chickens were studied during d 7 to 21. Three corn-soybean meal (SBM) based diets 1) Low SBM (18% SBM); 2) High SBM (31% SBM); and 3) High SBM+GG (31% SBM + Guar Gum (GG) 0.5%) with 3 levels of β-mannanase (0, 200, and 400 ppm) were mixed to produce 9 diets. A factorial design 3 × 3 was performed with JMP pro 13 (SAS, 2017)...
May 11, 2018: Poultry Science
https://www.readbyqxmd.com/read/29761827/factors-related-to-dissociation-between-objective-and-subjective-masticatory-function-in-japanese-community-dwelling-elderly-adults
#8
Murakami Masaharu, Yutaka Watanabe, Edahiro Ayako, Yuki Ohara, Obuchi Shuichi, Kawai Hisashi, Hunkyung Kim, Yoshinori Fujiwara, Ihara Kazushige, Murakami Masato, Hirohiko Hirano
OBJECTIVE: Clinicians' evaluations of older adults sometimes reveal inconsistencies between objective and subjective dental status. This study investigated which factors contribute both to good objective masticatory function (OMF) and the poor subjective masticatory function (SMF) that often becomes a clinical issue. METHODS: Study participants included 635 elderly community-dwelling Japanese adults who underwent a comprehensive geriatric health examination in 2012...
May 15, 2018: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29758152/efficacy-of-teeth-whitening-with-a-mouthwash-in-vitro-and-in-vivo-approaches
#9
Franco Gasparri, Bruce Richard Schemehorn, Andrea Zanardi
OBJECTIVES: Two different studies were conducted to evaluate the whitening efficacy of a mouthwash versus a placebo using in vitro and in vivomodels. The tested mouthwash was formulated with no oxidizing or abrasive agents containing chlorhexidine (CHX) and polyvinylpyrrolidone (PVP). METHODS: The purpose of the in vitro study was to determine whether the mouthwash formulation OC15AB could reduce the accumulation of staining in an accepted stain model. Bovine central incisors were cut to obtain enamel specimens of ~8 × 8 mm2...
March 2018: Journal of Clinical Dentistry
https://www.readbyqxmd.com/read/29754903/gigantism-precedes-filter-feeding-in-baleen-whale-evolution
#10
R Ewan Fordyce, Felix G Marx
Baleen whales (Mysticeti) are the largest animals on Earth, thanks to their ability to filter huge volumes of small prey from seawater. Mysticetes appeared during the Late Eocene, but evidence of their early evolution remains both sparse and controversial [1, 2], with several models competing to explain the origin of baleen-based bulk feeding [3-6]. Here, we describe a virtually complete skull of Llanocetus denticrenatus, the second-oldest (ca. 34 Ma) mysticete known. The new material represents the same individual as the type and only specimen, a fragmentary mandible...
May 4, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29753781/masticatory-efficiency-in-patients-with-partially-edentulous-dentitions
#11
Zhengwei Shao, Xiaojing Guo, Qian Zhang, Ewald M Bronkhorst, Derong Zou, Nico H J Creugers
OBJECTIVES: to assess associations amongst masticatory performance, dental functional status, and perceived chewing problems with common soft and hard foods. MATERIALS AND METHODS: 387 adult participants with reduced natural dentitions were included and underwent an oral examination, completed a written structured questionnaire and performed a two-color chewing gum test for masticatory efficiency. A multivariate regression model was used to analyze associations between masticatory efficiency and a number of dental conditions, with age, gender and perceived chewing difficulties as background variables...
May 10, 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29753207/an-exploratory-study-of-the-factors-related-to-mouth-breathing-syndrome-in-primary-school-children
#12
Issei Saitoh, Emi Inada, Yasutaka Kaihara, Yukiko Nogami, Daisuke Murakami, Naoko Kubota, Kaoru Sakurai, Yoshito Shirazawa, Tadashi Sawami, Miyuki Goto, Maki Nosou, Katsuyuki Kozai, Haruaki Hayasaki, Youichi Yamasaki
OBJECTIVE: Mouth breathing syndrome (MBS) is defined as a set of signs and symptoms that may be completely or incompletely present in subjects who, for various reasons, replace the correct pattern of nasal breathing with an oral or mixed pattern. It is important to identify the relevant factors affecting MBS in order to diagnose its cause since breathing obstructions can result from multiple factors. The purpose of this study is to clarify the relevant factors and the interrelationships between factors affecting MBS among children...
March 26, 2018: Archives of Oral Biology
https://www.readbyqxmd.com/read/29751036/guar-gum-blended-alginate-agarose-hydrogel-as-a-promising-support-for-the-entrapment-of-peroxidase-stability-and-reusability-studies-for-the-treatment-of-textile-effluent
#13
Misha Ali, Qayyum Husain
Ginger peroxidase (GP) was entrapped into the hydrogels of guar gum (GG)-alginate/agarose and these immobilized GP preparations were employed for the treatment of textile effluent. GG is a natural hydrophilic polysaccharide which may form complex with enzyme increasing its molecular dimension that can be easily retained inside the entrapping support. Therefore, the activity retention by alginate-guar gum (ANGG) and agarose-guar gum (AGG) was higher than that of alginate and agarose alone. Scanning electron microscopy (SEM) analysis also revealed that GG-GP complex was successfully entrapped inside the alginate/agarose gels...
May 8, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29748673/revealing-the-formation-and-electrochemical-properties-of-bis-trifluoromethanesulfonyl-imide-intercalated-graphite-with-first-principles-calculations
#14
Chol-Jun Yu, Un-Song Ri, Gum-Chol Ri, Jin-Song Kim
Graphite has been reported to have anion, as well as cation, intercalation capacities as both a cathode and an anode host material for dual ion batteries. In this work, we study the intercalation of bis(trifluoromethanesulfonyl)imide (TFSI) anions from an ionic liquid electrolyte into graphite with first-principles calculations. We build models for TFSI-Cn compounds with systematically increasing graphene sheet unit cell sizes and investigate their stabilities by calculating the formation energy, resulting in the linear decrease of and arrival at the limit of stability...
May 11, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29747516/impact-and-effectiveness-of-a-stand-alone-nrt-starter-kit-in-a-statewide-tobacco-cessation-program
#15
Amy N Kerr, Barbara A Schillo, Paula A Keller, Randi B Lachter, Rebecca K Lien, Heather G Zook
PURPOSE: To examine 2-week nicotine replacement therapy (NRT) starter kit quit outcomes and predictors and the impact of adding this new service on treatment reach. DESIGN: Observational study of a 1-year cohort of QUITPLAN Services enrollees using registration and utilization data and follow-up outcome survey data of a subset of enrollees who received NRT starter kits. SETTING: ClearWay Minnesota's QUITPLAN Services provides a quit line that is available to uninsured and underinsured Minnesotans and NRT starter kits (a free 2-week supply of patches, gum, or lozenges) that are available to all Minnesota tobacco users...
January 1, 2018: American Journal of Health Promotion: AJHP
https://www.readbyqxmd.com/read/29746995/rising-trade-declining-stocks-the-global-gugul-commiphora-wightii-trade
#16
REVIEW
A B Cunningham, J A Brinckmann, R N Kulloli, U Schippmann
ETHNOPHARMACOLOGICAL RELEVANCE: Commiphora wightii is exploited in India and Pakistan for an oleo-resin (gum guggul) traditionally used in Ayurvedic, Siddha and Unani medical systems. Processed C. wightii oleo-resin products are exported from India to 42 countries, including re-export to Pakistan, for anti-inflammatory use and as an anti-inflammatory and an anti-obesity treatment considered to lower cholesterol and lipid levels. The C. wightii export trade has particular relevance to the European Union because Belgium, France, Germany, Hungary, Italy, the Netherlands, and United Kingdom are importing countries...
May 7, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29746968/characterization-of-rheological-and-structural-properties-of-a-gum-from-balangu-seeds
#17
Mohammad Salehi, Mehdi Tabarsa, Milad Amraie, Mohammad Anvari, Masoud Rezaei, Brennan M Smith
With the growing interest in all-natural foods, there has been increased study of sustainable natural sources of polysaccharides with suitable functional properties. Lallemantia royleana seed polysaccharide is one such material. Water-soluble polysaccharides were isolated from L. royleana seed to evaluate their chemical structure and rheological properties. The polysaccharide was consisted of neutral (62.9% w/w) and acidic (16.7% w/w) sugars. The backbone of the isolated rhamnoarabinogalactan was composed of (1 → 4)-linked galactopyranose residues...
May 7, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29746967/modification-of-sterculia-gum-polysaccharide-via-network-formation-by-radiation-induced-crosslinking-polymerization-for-biomedical-applications
#18
Baljit Singh, Baldev Singh
AIMS: Keeping in view the therapeutic and pharmaceutical applications of sterculia gum polysaccharide in consideration, its modification has been carried out through grafting and crosslinking to develop the hydrogels for enhanced biomedical applications. Radiation method was used for formation of sterile network of sterculia gum, carbopol and graphene oxide (GO). These polymers were characterized by Cryo-SEMs, AFM, 13 C NMR solid state, swelling studies. Some biomedical properties of hydrogels like thrombogenicity, haemolytic potential, antioxidant activity, mucoadhesion and gel strength were determined along with the drug delivery studies...
May 7, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29746128/identification-functional-characterization-and-seasonal-expression-patterns-of-five-sesquiterpene-synthases-in-liquidambar-formosana
#19
Ling Chuang, Chi-Hsiang Wen, Yi-Ru Lee, Yan-Liang Lin, Li-Ren Hsu, Sheng-Yang Wang, Fang-Hua Chu
Terpenoids are a large group of important secondary metabolites that are involved in a variety of physiological mechanisms, and many are used commercially in the cosmetics and pharmaceutical industries. During the past decade, the topic of seasonal variation in terpenoid biosynthesis has garnered increasing attention. Formosan sweet gum ( Liquidambar formosana Hance) is a deciduous tree species. The expression of terpene synthase and accumulation of terpenoids in leaves may vary in different seasons. Here, four sesquiterpene synthases (i...
May 10, 2018: Journal of Natural Products
https://www.readbyqxmd.com/read/29744274/genetic-linkage-map-and-qtl-identification-for-adventitious-rooting-traits-in-red-gum-eucalypts
#20
Murugan Sumathi, Vijaya Kumar Waman Bachpai, A Mayavel, Modhumita Ghosh Dasgupta, Binai Nagarajan, D Rajasugunasekar, Veerasamy Sivakumar, Ramasamy Yasodha
The eucalypt species, Eucalyptus tereticornis and Eucalyptus camaldulensis , show tolerance to drought and salinity conditions, respectively, and are widely cultivated in arid and semiarid regions of tropical countries. In this study, genetic linkage map was developed for interspecific cross E. tereticornis  ×  E. camaldulensis using pseudo-testcross strategy with simple sequence repeats (SSRs), intersimple sequence repeats (ISSRs), and sequence-related amplified polymorphism (SRAP) markers. The consensus genetic map comprised totally 283 markers with 84 SSRs, 94 ISSRs, and 105 SRAP markers on 11 linkage groups spanning 1163...
May 2018: 3 Biotech
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