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https://www.readbyqxmd.com/read/28543634/thaumatin-and-gum-arabic-allergy-in-chewing-gum-factory-workers
#1
Mattias P Tschannen, Ulrich Glück, Andreas J Bircher, Ingmar Heijnen, Claudia Pletscher
Thaumatin is a sweetener and flavor modifier commonly used in the food industry. Likewise, gum arabic is widely used as a food stabilizer and thickening agent. We report here that a powder mixture composed of 10% thaumatin and 90% gum arabic led to allergic symptoms in the upper airways in occupationally exposed individuals: four of eight workers of a chewing gum factory exposed to this powder mixture had pronounced rhinitis. A positive skin prick test result for pure thaumatin was obtained in all four individuals with rhinitis of whom two also had a positive skin prick test result for pure gum arabic and gum arabic-specific IgE...
May 24, 2017: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/28539131/longitudinal-associations-of-hopelessness-and-loneliness-in-older-adults-results-from-the-us-health-and-retirement-study
#2
Amber M Gum, Sharon Shiovitz-Ezra, Liat Ayalon
BACKGROUND: Hopelessness and loneliness are potent risk factors for poor mental and physical health in later life, although the nature of their relationships with each other over time is not clear. The aim of the current study was to examine relationships between hopelessness and loneliness over an eight-year study period. METHODS: Three waves of data from the US Health and Retirement Study (2006, 2010, 2014) were used to test a cross-lagged model of hopelessness and loneliness (N = 7,831), which allows for the simultaneous evaluation of the reciprocal associations of loneliness and hopelessness...
May 25, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28536018/physicochemical-and-functional-properties-of-ultrasonic-treated-tragacanth-hydrogels-cross-linked-to-lysozyme
#3
Roya Koshani, Mahmoud Aminlari
The purpose of this study was to prepare, characterize and investigate physiochemical and functional attributes of hen egg white lysozyme (LZM) cross-linked with ultrasonic-treated tragacanth (US-treated TGC) under mild Maillard reactions conditions. FT-IR spectroscopy together with OPA assay revealed that covalent attachment of LZM with TCG's. Under optimum condition (pH=8.5, 60°C, RH=79%, 8 days), only one of the free amino group of LZM was blocked by TGC whereas under the same condition, US treated-TGC's blocked about three amino groups...
May 20, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28536016/production-and-characterization-of-a-new-biodegradable-fenugreek-seed-gum-based-active-nanocomposite-film-reinforced-with-nanoclays
#4
Saliha Memiş, Fatih Tornuk, Fatih Bozkurt, M Zeki Durak
In the present work, fenugreek seed gum (FSG)/clay nanocomposite films were prepared with nanoclays (Na(+) montmorillonite [MMT], halloysite [HNT] and Nanomer® I.44 P [NM]) at different amounts (0, 2.5, 5.0 and 7.5g clay/100g FSG) by solution casting method and characterized. Increasing amount of nanoclay significantly (P<0.05) improved oxygen barrier and thermal properties of the biodegradable films. Agar diffusion tests revealed that FSG based nanocomposite films exhibited strong antimicrobial properties against foodborne pathogens namely Listeria monocytogenes, Escherichia coli O157:H7, Staphylococcus aureus and Bacillus cereus independently of clay type and concentration...
May 20, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28535789/a-multi-target-therapeutic-potential-of-prunus-domestica-gum-stabilized-nanoparticles-exhibited-prospective-anticancer-antibacterial-urease-inhibition-anti-inflammatory-and-analgesic-properties
#5
Nazar Ul Islam, Raza Amin, Muhammad Shahid, Muhammad Amin, Sumera Zaib, Jamshed Iqbal
BACKGROUND: Phytotherapeutics exhibit diverse pharmacological effects that are based on the combined action of a mixture of phytoconstituents. In this study, Prunus domestica gum-loaded, stabilized gold and silver nanoparticles (Au/Ag-NPs) were evaluated for their prospective anticancer, antibacterial, urease-inhibition, anti-inflammatory, and analgesic properties. METHODS: Au/Ag-NPs were biosynthesized and characterized with UV-Vis, FTIR, SEM, EDX, and XRD techniques...
May 23, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28533653/unusual-presentation-of-rare-cardiac-tumor-the-role-of-f-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#6
Sameer Kamalakar Taywade, Nishikant Avinash Damle, Madhavi Tripathi, S T ArunRaj, Averilicia Passah, Amarinder Singh Malhi, Sanjeev Kumar, Chandrasekhar Bal
Primary cardiac tumors are rare with angiosarcoma being the most common among malignant cardiac tumor. We present a case of 30-year-old female patient in whom F-18-fluorodeoxyglucose positron emission tomography/computed tomography demonstrated a necrotic mass in right atrium with multiple fluorodeoxyglucose avid lesions in both upper and lower alveolus, liver, multiple bones, and bilateral lungs. Patient underwent biopsy from gum swelling which revealed metastatic angiosarcoma.
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533304/modulation-of-the-gut-microbiota-impacts-non-alcoholic-fatty-liver-disease-a-potential-role-for-bile-acids
#7
Aafke Wf Janssen, Tom Houben, Saeed Katiraei, Wieneke Dijk, Lily Boutens, Nieke van der Bolt, Zeneng Wang, J Mark Brown, Stanley L Hazen, Stéphane Mandard, Ronit Shiri-Sverdlov, Folkert Kuipers, Ko Willems van Dijk, Jacques Vervoort, Rinke Stienstra, Guido Jej Hooiveld, Sander Kersten
Non-alcoholic fatty liver disease (NAFLD) is rapidly becoming the most common liver disease worldwide, yet the pathogenesis of NAFLD is only partially understood. Here, we investigated the role of the gut bacteria in NAFLD by stimulating the gut bacteria via feeding mice the fermentable dietary fiber guar gum and suppressing the gut bacteria via chronic oral administration of antibiotics. Guar gum feeding profoundly altered the gut microbiota composition, in parallel with reduced diet-induced obesity and improved glucose tolerance...
May 22, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28532609/risk-factors-for-osteonecrosis-of-the-jaw-in-oral-cancer-patients-after-surgery-and-eventual-adjuvant-treatment-the-potential-role-of-chemotherapy
#8
Tzu-Yu Lai, Ti-Hao Wang, Chia-Jen Liu, Tze-Fan Chao, Tzeng-Ji Chen, Yu-Wen Hu
BACKGROUND AND PURPOSE: To identify the risk factors for osteonecrosis of the jaw (ONJ) in oral cancer patients after surgery with and without adjuvant therapy in a nationwide, population-based study. MATERIAL AND METHODS: Using the Taiwan National Health Insurance Research Dataset, we recruited patients with newly diagnosed oral cancer between 1997 and 2011. All of them underwent primary surgery. Data regarding demographic characteristics; tooth extractions; medications; and cancer treatments, including types of mandibular surgery, radiotherapy and platinum-based chemotherapy, were collected for analysis...
May 19, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28532122/mannan-endo-1-4-%C3%AE-mannosidase-from-kitasatospora-sp-isolated-in-indonesia-and-its-potential-for-production-of-mannooligosaccharides-from-mannan-polymers
#9
Nanik Rahmani, Norimasa Kashiwagi, JaeMin Lee, Satoko Niimi-Nakamura, Hana Matsumoto, Prihardi Kahar, Puspita Lisdiyanti, Yopi, Bambang Prasetya, Chiaki Ogino, Akihiko Kondo
Mannan endo-1,4-β-mannosidase (commonly known as β-mannanase) catalyzes a random cleavage of the β-D-1,4-mannopyranosyl linkage in mannan polymers. The enzyme has been utilized in biofuel production from lignocellulose biomass, as well as in production of mannooligosaccharides (MOS) for applications in feed and food industries. We aimed to obtain a β-mannanase, for such mannan polymer utilization, from actinomycetes strains isolated in Indonesia. Strains exhibiting high mannanase activity were screened, and one strain belonging to the genus Kitasatospora was selected...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28531662/microencapsulation-of-gulosibacter-molinativorax-on4-t-cells-by-a-spray-drying-process-using-different-biopolymers
#10
Berta N Estevinho, A Rita Lopes, Vera Sousa, Fernando Rocha, Olga C Nunes
Molinate is a thiocarbamate herbicide used in rice crop protection. As other pesticides, molinate is a recognized environmental pollutant and bio-accumulated by some wildlife forms. Gulosibacter molinativorax ON4(T) is able to hydrolyse molinate into metabolites which are further degraded by other un-related bacteria. Hence, it can be used in molinate bioremediation processes. The aim of this work was to investigate the possibility of producing G. molinativorax ON4(T) microparticles, using different non-toxic biopolymers (arabic gum, modified chitosan, calcium alginate and sodium alginate) as encapsulating agents by a spray-drying process...
May 11, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28528942/sol-gel-derived-xanthan-gum-silica-nanocomposite-a-highly-efficient-cationic-dyes-adsorbent-in-aqueous-system
#11
Sourbh Thakur, Sadanand Pandey, Omotayo Arotiba
A sol-gel synthesis of nanocomposite adsorbent materials by dehydroxylation condensation of tetraethoxysilane (TEOS) in the presence of xanthan gum (XG) using base catalyst and ethanol as co-solvent is discussed. The synthesized nanocomposite material was evaluated for their ability to adsorb cationic dyes - methylene blue (MB) and bismarck brown Y (BB) from an aqueous solution. The XG/SiO2 nanocomposite shows the ordered macro- and meso-porous structures and also exhibited large surface area, excellent chemical/mechanical stability and high binding capability for MB and BB dyes...
May 18, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28528002/iron-microencapsulation-in-gum-tragacanth-using-solvent-evaporation-method
#12
Elham Asghari-Varzaneh, Mohammad Shahedi, Hajar Shekarchizadeh
In this study iron salt (FeSO4·7H2O) was microencapsulated in gum tragacanth hydrogel using solvent evaporation method. Three significant parameters (ferrous sulfate content, content of gum tragacanth, and alcohol to mixture ratio) were optimized by response surface methodology to obtain maximum encapsulation efficiency. Ferrous sulfate content, 5%, content of gum tragacanth, 22%, and alcohol to mixture ratio, 11:1 was determined to be the optimum condition to reach maximum encapsulation efficiency. Microstructure of iron microcapsules was thoroughly monitored using scanning electron microscopy (SEM)...
May 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28526471/-comparison-of-different-stylets-used-for-intubation-with-the-c-mac-d-blade-%C3%A2-videolaryngoscope-a-randomized-controlled-study
#13
Dilek Ömür, Başak Bayram, Şule Özbilgin, Volkan Hancı, Bahar Kuvaki
OBJECTIVE: The angle of the C-MAC D-Blade(®) videolaryngoscope, which is used for difficult airway interventions, is not compatible with routinely used endotracheal tubes. METHODS: A prospective randomized crossover study was performed comparing five intubation methods for use with standardized airways, including using different stylets or no stylet: Group HS, hockey-stick stylet; Group DS, D-blade type stylet; Group CS, CoPilot(®) videolaryngoscope rigid stylet(®); Group GEB, gum elastic bougie; and Group NS, no stylet...
May 17, 2017: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/28525862/application-of-nirs-coupled-with-pls-regression-as-a-rapid-non-destructive-alternative-method-for-quantification-of-kba-in-boswellia-sacra
#14
Ahmed Al-Harrasi, Najeeb Ur Rehman, Fazal Mabood, Muhammaed Albroumi, Liaqat Ali, Javid Hussain, Hidayat Hussain, René Csuk, Abdul Latif Khan, Tanveer Alam, Saif Alameri
In the present study, for the first time, NIR spectroscopy coupled with PLS regression as a rapid and alternative method was developed to quantify the amount of Keto-β-Boswellic Acid (KBA) in different plant parts of Boswellia sacra and the resin exudates of the trunk. NIR spectroscopy was used for the measurement of KBA standards and B. sacra samples in absorption mode in the wavelength range from 700-2500nm. PLS regression model was built from the obtained spectral data using 70% of KBA standards (training set) in the range from 0...
May 10, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28522007/guar-gum-benzoate-nanoparticle-reinforced-gelatin-films-for-enhanced-thermal-insulation-mechanical-and-antimicrobial-properties
#15
Sonia Kundu, Aatrayee Das, Aalok Basu, Md Farooque Abdullah, Arup Mukherjee
This work relates to guar gum benzoate self assembly nanoparticles synthesis and nano composite films development with gelatin. Guar gum benzoate was synthesized in a Hofmeister cation guided homogeneous phase reaction. Self assembly polysaccharide nanoparticles were prepared in solvent displacement technique. Electron microscopy and DLS study confirmed uniform quasi spherical nanoparticles with ζ-potential - 28.7mV. Nanocomposite films were further developed in gelatin matrix. The film capacity augmenting due to nanoparticles incorporation was noteworthy...
August 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28521371/evaluation-of-biological-effects-of-hydroalcoholic-extract-of-hibiscus-rosa-sinensis-flowers-on-alloxan-induced-diabetes-in-rats
#16
Mohan Pethe, Samir Yelwatkar, Smita Manchalwar, Vijay Gujar
Aim and Objective The current study sought to investigate antidiabetic, hypolipidimic, antioxidant and histopathological effects of floral extract of Hibiscus rosa sinensis in Alloxan induced Diabetes in rats. Materials and Methods Study was conducted on 6 groups with 6 wistar rats in each group for the period of 4 weeks. Group I: served as normal control (NC), rats administered with gum acacia 1 ml daily, group II: consider as diabetic control (DC) treated with alloxon 150 mg/kg body wt. Whereas Hibiscus rosa-sinensis flower extract was given orally in group III (DE1), group IV (DE2), group V (DE3) at doses of 50, 100 and 200 mg/kg body weight dissolved in distilled water respectively...
May 18, 2017: Drug Research
https://www.readbyqxmd.com/read/28512604/traditional-dentistry-knowledge-among-serbs-in-several-balkan-countries
#17
Dragan V Ilic, Biljana Andjelski Radicevic, Anely Nedelcheva, Ivana Djurovic, Dejan Ostojic
BACKGROUND/AIM: There are still unrevealed treasures of traditional dental medicine, that is, the reason to investigate and present various ways in treatment of oral and orofacial tissues, as well as magic and religious elements involved in representative areas among Serbs. MATERIALS AND METHODS: Information was collected from the elderly non-professional folk dentists and herbalists with the additional help of local physicians and dentists that was done through questionnaire and personal interviews...
April 2017: Journal of Intercultural Ethnopharmacology
https://www.readbyqxmd.com/read/28507950/preparation-and-characterization-of-pistacia-khinjuk-gum-nanoparticles-using-response-surface-method-evaluation-of-its-anti-bacterial-performance-and-cytotoxicity
#18
Ali Fattahi, Tahereh Sakvand, Marziyeh Hajialyani, Behzad Shahbazi, Mohammad Shakiba, Ahmad Tajehmiri, Ebrahim Shakiba
Purpose: This study aims to prepare a novel, natural nanoparticle (NP) as a drug carrier, which also has inherent therapeutic effects. Methods: Pistacia khinjuk gum NPs were prepared and Response surface methodology (RSM) was used for statistical analysis of data and optimizing the size of NPs. Results: NPs were in the range of 75.85-241.3 nm. The optimization study was carried out, and an optimized size (70.86nm) was obtained using DMSO as a solvent. The volume of the organic phase was 111.25µl, and the concentration of gum was 1% w/v...
April 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28506726/influence-of-xanthan-guar-cmc-and-gum-acacia-on-functional-properties-of-water-chestnut-trapa-bispinosa-starch
#19
Zubala Lutfi, Anjum Nawab, Feroz Alam, Abid Hasnain, Syed Zia Haider
This study was performed to determine the effect of xanthan, guar, CMC and gum acacia on functional and pasting properties of starch isolated from water chestnut (Trapa bispinosa). Morphological properties of water chestnut starch with CMC were studied by scanning electron microscopy (SEM). The addition of hydrocolloids significantly enhanced the solubility of water chestnut starch (WCS) while reduced swelling power and freeze-thaw stability. The hydrophilic tendency of WCS was increased by xanthan gum; however, with addition of gum acacia it decreased significantly...
May 12, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28504182/oil-water-interfaces-of-guar-gum-based-biopolymer-hydrogels-and-application-to-their-separation
#20
Lei Dai, Baobin Wang, Xingye An, Liqiang Zhang, Avik Khan, Yonghao Ni
Oily wastewater treatment has become a significant research subject due to potential environmental related applications, e.g., oil spill remedy process. In this paper, a natural polymer based hydrogel, prepared from guar gum (GG) and metaborate, was coated onto a stainless steel mesh, and the as-prepared hydrogel-coated material was applied for oil/water separation. The strong hydrophilic GG hydrogel imparted excellent underwater oleophobicity and ultra-low oil adhesion. The results proved that the as-prepared GG hydrogel-coated material possessed excellent self-cleaning property and high oil/water separation efficiency...
August 1, 2017: Carbohydrate Polymers
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