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https://www.readbyqxmd.com/read/28646812/oral-consumption-of-vitamin-k2-for-8-weeks-associated-with-increased-maximal-cardiac-output-during-exercise
#1
Brian K McFarlin, Andrea L Henning, Adam S Venable
Background • Vitamin K1 and K2 are not typically common in a Western diet because they are found in a variety of fermented foods. Vitamin K2 in particular has been demonstrated to restore mitochondrial function and has a key role in production of mitochondrial adenosine triphosphate. Thus, it is reasonable to speculate that dietary supplementation with vitamin K2 could increase the function of muscle with high mitochondrial content (ie, skeletal and cardiac muscle). Objective • The purpose of this study was to determine if 8 wk of dietary supplementation with Vitamin K2 could alter cardiovascular responses to a graded cycle ergometer test...
July 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28646801/the-effects-of-exposure-to-low-frequency-electromagnetic-fields-on-male-fertility
#2
Mahsa Darbandi, Sara Darbandi, Ashok Agarwal, Ralf Henkle, Mohammad Reza Sadeghi
Context • People are increasingly exposed to low frequency (LF) electromagnetic fields (EMFs), mainly from electricity distribution networks and electronic devices. Critics of this widespread exposure believe that it can have detrimental effects on the human body. On the other hand, many in vivo and in vitro studies have claimed that low frequency electromagnetic therapy can function as a form of alternative medicine and that therapists can treat disease by applying electromagnetic radiation or pulsed EMFs to the body or cells...
June 23, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28646767/enhanced-photodegradation-of-2-4-dichlorophenoxyacetic-acid-using-a-novel-tio2-mgfe2o4-core-shell-structure
#3
Bui The Huy, Da-Som Jung, Nguyen Thi Kim Phuong, Yong-Ill Lee
A novel TiO2@MgO-Fe2O3 core-shell structure has been synthesized via a hydrolysis and co-precipitation method followed by calcination at 500 °C and has proven to be an efficient photocatalyst. The obtained TiO2@MgO-Fe2O3 core-shell was characterized by scanning electron microscopy, X-ray diffraction, and UV-Vis diffused reflectance techniques. Its photocatalytic activity toward 2,4-dichlorophenoxyacetic acid (2,4-D) was investigated in aqueous solutions with and without visible light irradiation in the presence and absence of hydrogen peroxide...
June 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28646761/regulation-on-the-aggregation-induced-emission-aie-of-dna-templated-silver-nanoclusters-by-bsa-and-its-hydrolysates
#4
Wei-Xian Wang, Yuqing Wu, Hong-Wei Li
The aggregation-induced emission (AIE) phenomenon of the metal nanoclusters (NCs) has been discovered quite recently, which is considered to be creative to improve the optical properties of NCs upon ligand aggregation. In the present study, we report an AIE system for double-stranded DNA-templated silver nanoclusters (AgNCs-dsDNA) by using bovine serum albumin (BSA) in solution, which induce a moderate emission enhancement of AgNCs (5-fold) and a blue-shift through a loosen interaction. In addition, significant luminescence enhancement (30-fold) is further stimulated by the addition of digestive enzyme to the system by altering the surface structure of the aggregated particles...
June 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28646756/protein-functionalization-of-zno-nanostructure-exhibits-selective-and-enhanced-toxicity-to-breast-cancer-cells-through-oxidative-stress-based-cell-death-mechanism
#5
Sailendra Mahanta, S Prathap, Deependra Kumar Ban, Subhankar Paul
Zinc oxide nanostructure (ZnONS) was chemically synthesized and functionalized (FZnONSBLA) with a small protein bovine α-lactalbumin (BLA) by chemical cross-linking methods. Both nano-structures were characterized using various techniques such as electron microscopy, dynamic light scattering (DLS), UV-Vis spectroscopy, FT-IR, photo-luminescence and X-ray diffraction. Electron microscopy and DLS analysis revealed their (ZnONS and FZnONSBLA) average size of 200nm and 450nm, respectively. When cytotoxicity of both the nanostructures were assessed in breast cancer cells MCF-7 and MDAMB231 by MTT assay and PI/Annexin V staining (FACS), FZnONSBLA demonstrated higher cell death than ZnONS primarily due to generation of intracellular reactive oxygen species (ROS)...
June 15, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28646720/nanoporous-gold-based-microbial-biosensor-for-direct-determination-of-sulfide
#6
Zhuang Liu, Hanyue Ma, Huihui Sun, Rui Gao, Honglei Liu, Xia Wang, Ping Xu, Luying Xun
Environmental pollution caused by sulfide compounds has become a major problem for public health. Hence, there is an urgent need to explore a sensitive, selective, and simple sulfide detection method for environmental monitoring and protection. Here, a novel microbial biosensor was developed using recombinant Escherichia coli BL21 (E. coli BL21) expressing sulfide:quinone oxidoreductase (SQR) for sulfide detection. As an important enzyme involved in the initial step of sulfide metabolism, SQR oxidizes sulfides to polysulfides and transfers electrons to the electron transport chain...
June 20, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28646718/reduced-graphene-oxide-functionalized-feooh-for-signal-on-photoelectrochemical-sensing-of-prostate-specific-antigen-with-bioresponsive-controlled-release-system
#7
Qian Zhou, Youxiu Lin, Jian Shu, Kangyao Zhang, Zhenzhong Yu, Dianping Tang
A new and signal-on photoelectrochemical (PEC) sensing platform was successfully designed for the sensitive detection of prostate-specific antigen (PSA), using reduced graphene oxide- functionalized iron oxyhydroxide (FeOOH-rGO) as the photoactive material, accompanying target-responsive controlled release system to achieve the signal amplification. Introduction of rGO as electron mediator greatly facilitated the electron transfer from FeOOH to electrode under visible light, which inhibited the electron-hole recombination to enhance the photo-activity of FeOOH-rGO...
June 16, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28646701/use-of-sglt2-inhibitors-for-diabetes-and-risk-of-infection-analysis-using-general-practice-records-from-the-nps-medicinewise-medicineinsight-program
#8
Svetla Gadzhanova, Nicole Pratt, Elizabet Roughead
AIMS: To explore the feasibility of MedicineInsight data to support risk management plan evaluation, focusing on sodium glucose co-transporter 2 (SGLT2) inhibitors for type 2 diabetes. METHODS: A retrospective study using de-identified electronic general practitioner records. Patients who initiated SGLT2 inhibitor between 1 Jan 2012 to 1 Sep 2015 were compared to patients who initiated dipeptidyl peptidase 4 (DPP-4) inhibitors. The two cohorts were followed-up for six months...
June 15, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28646662/estimation-of-the-molar-absorption-coefficient-of-copper-salicylate-within-the-spectral-range-300-350nm
#9
N L Lavrik, N U Mulloev
Additional absorption was detected in absorption spectra within the range 300-350nm after addition of copper sulfate CuSO4(aq) to a solution of sodium salicylate NaНSal (рН=7.8). The additional maximum absorption was observed at 320nm. Assuming that the additional absorption depends on the formation of copper salicylate CuSal, the molar absorption coefficient εCuSal of this complex was determined to be (3.8±0.02)·10(3)М(-1)сm(-1). This value is almost equal to that of monoanion HSal(-), εHSal-=(3.6±0...
June 7, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28646634/marinisporobacter-balticus-gen-nov-sp-nov-desulfosporosinus-nitroreducens-sp-nov-and-desulfosporosinus-fructosivorans-sp-nov-new-spore-forming-bacteria-isolated-from-subsurface-sediments-of-the-baltic-sea
#10
Verona Vandieken, Helge Niemann, Bert Engelen, Heribert Cypionka
Four novel Gram-stain-positive, endospore-forming bacteria of the order Clostridiales were isolated from subsurface sediments sampled during International Ocean Discovery Program Expedition 347 to the Baltic Sea. One strain (59.4MT) grew as an obligate heterotroph by aerobic respiration and anaerobically by fermentation. Optimum growth was observed with 0.5 % NaCl at 25 °C and pH 7.0-7.3. Analysis of 16S rRNA gene sequences of 59.4MT revealed Alkaliphilus transvaalensis (92.3 % identity), Candidatus Geosporobacter ferrireducens (92...
June 20, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28646610/measuring-the-societal-impact-of-psoriasis-in-the-united-kingdom-through-a-non-interventional-study-of-patients
#11
C E Griffiths, R Williams, A C Halliday, J A Leman
This cross-sectional study aimed to measure total societal costs of moderate-to-severe, chronic plaque psoriasis in adults, and was conducted at 10 National Health Service hospitals in the United Kingdom between June-November 2014. Data capture was via hand-held electronic devices. Investigators at participating sites identified participants. Eligible patients were ≥18 years of age and diagnosed with moderate-to-severe plaque psoriasis for at least 6 months (Psoriasis Area and Severity Index (PASI) ≥10, and Dermatology Life Quality Index (DLQI) >10)...
June 24, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28646595/point-of-care-ultrasound-work-flow-innovation-impact-on-documentation-and-billing
#12
Matthew J Flannigan, Srikar Adhikari
OBJECTIVES: To evaluate the impact that an innovative automated ultrasound (US) work flow, which allows for bedside performance of examination documentation and order placement, has on point-of-care US billing compared to ordering US examinations through an electronic medical record. METHODS: We conducted a retrospective review of point-of-care US billing data (March 2014-February 2016) for adult and pediatric emergency departments with an emergency medicine residency and a US fellowship...
June 24, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28646589/new-promising-method-for-the-challenging-synthesis-of-5-acyl-2-amino-3-cyanothiophenes-chemisry-and-fluorescent-properties
#13
Kseniya I Lugovik, Alexander K Eltyshev, Enrico Benassi, Nataliya P Belskaya
Independent of the substrate structure and reaction conditions, 2-cyano-3-aminothioacrilonitriles, which contains two active electrophilic centers, were shown to interact with various active halo methylene compounds under mild conditions to afford 5-acyl-2-amino-3-cyanothiophenes as the only products. A series of new polyfunctional thiophene derivatives with a rare combination of functionalities were synthesized and their photophysical properties were experimentally and computationally investigated. The calculated electronic characteristics of the ground and excited states were compared to the experimental results, which provided a good understanding of the relationship between the optoelectronic properties and the molecular structures...
June 24, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28646519/the-association-of-health-literacy-with-preventable-ed-visits-a-cross-sectional-study
#14
Meenakshi P Balakrishnan, Jill Boylston Herndon, Jingnan Zhang, Thomas Payton, Jonathan Shuster, Donna L Carden
BACKGROUND: Policy-makers argue that emergency department (ED) visits for conditions preventable with high-quality outpatient care contribute to waste in the healthcare system. However, access to ambulatory care is uneven, especially for vulnerable populations like minorities, the poor and those with limited health literacy. The impact of limited health literacy on ED visits that are preventable with timely, high-quality ambulatory care is unknown. OBJECTIVE: To determine the association of health literacy and preventable ED visits...
June 24, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28646466/effects-of-catheter-based-renal-denervation-on-heart-failure-with-reduced-ejection-fraction-a-systematic-review-and-meta-analysis
#15
REVIEW
Hidekatsu Fukuta, Toshihiko Goto, Kazuaki Wakami, Nobuyuki Ohte
Despite the recent advances in the management of heart failure, the mortality of heart failure patients remains high. It is of urgent need to develop new therapy for heart failure. Heart failure is characterized by increased sympathetic activity, and chronic sympathetic activation is involved in the maintenance of the pathological state. Catheter-based renal denervation (RDN) has emerged as an invasive but safe approach that can reduce sympathetic activation. Studies have reported inconsistent results regarding the effect of RDN in heart failure patients due to limited power with small sample sizes...
June 24, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28646457/national-survey-among-radiation-oncology-residents-related-to-their-needs-in-geriatric-oncology
#16
Rachel Leifer, Bonnie Bristow, Martine Puts, Shabbir Alibhai, Xingshan Cao, Barbara-Ann Millar, Meredith Giuliani, Tina Hsu, Maureen Trudeau, Rajin Mehta, Ines Menjak, Mireille Norris, Barbara Liu, Francois Gallant, Ewa Szumacher
Currently, there is no formal curriculum addressing geriatric oncology within Canadian radiation oncology (RO) residency programs. Knowledge related to geriatric medicine may help radiation oncologists modify RT based on frailty status and geriatric considerations. Understanding specific learning needs allow program coordinators to align the current curriculum with residents' geriatric oncology learning needs. The purpose of this study is to determine the geriatric oncology educational needs of the Canadian RO residents and to inform Canadian RO residency training...
June 24, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28646447/microbial-transformations-of-selenite-by-methane-oxidizing-bacteria
#17
Abdurrahman S Eswayah, Thomas J Smith, Andreas C Scheinost, Nicole Hondow, Philip H E Gardiner
Methane-oxidizing bacteria are well known for their role in the global methane cycle and their potential for microbial transformation of wide range of hydrocarbon and chlorinated hydrocarbon pollution. Recently, it has also emerged that methane-oxidizing bacteria interact with inorganic pollutants in the environment. Here, we report what we believe to be the first study of the interaction of pure strains of methane-oxidizing bacteria with selenite. Results indicate that the commonly used laboratory model strains of methane-oxidizing bacteria, Methylococcus capsulatus (Bath) and Methylosinus trichosporium OB3b, are both able to reduce the toxic selenite (SeO3(2-)) but not selenate (SeO4(2-)) to red spherical nanoparticulate elemental selenium (Se(0)), which was characterized via energy-dispersive X-ray spectroscopy (EDXS), X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS)...
June 23, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28646368/tnf%C3%AE-blockers-followed-by-continuation-of-sulfasalazine-and-methotrexate-combination-a-retrospective-study-on-cost-saving-options-of-treatment-in-spondyloarthritis
#18
Aswin M Nair, P Sandhya, Bijesh Yadav, Debashish Danda
High cost deters continuous use of tumor necrosis factor α blockers (TNFi) in developing countries. The objective of this study was to evaluate outcome and expenditure incurred in Spondyloarthritis (SpA) patients beyond a year of follow-up after receiving four doses of infliximab (IFX) over and above background therapy of methotrexate (MTX) and sulfasalazine (SSZ) combination. Electronic medical records were screened for patients with SpA satisfying the Assessment of Spondyloarthritis International Society (ASAS) criteria between 2008 and 2014...
June 23, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28646332/a-rational-approach-for-the-improvement-of-biomass-production-and-lipid-profile-in-cacao-cell-suspensions
#19
Adriana María Gallego Rúa, Luisa Fernanda Rojas, Aura Ines Urrea Trujillo, Oriana Parra Zuleta, Cristian David Correa Alvarez, Lucía Atehortúa Garcés
Cocoa butter (CB) is produced in the seeds of Theobroma cacao representing 50% of its dry weight. The lipid composition plays an important role in the physicochemical, rheological, and sensory properties of the CB, making this fat a valuable resource for the production of chocolates, cosmetics, and pharmaceuticals. In this paper, are described experimental strategies used for a rational improvement of biomass production and fatty acids in cacao cell suspension cultures. First, the lipid profile in four cacao varieties is characterized, and then, one variety is selected to induce cell suspensions using a direct method without previous establishment of a callus phase...
June 23, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28646309/influence-of-polymethyl-acrylate-additive-on-the-formation-of-particulate-matter-and-nox-emission-of-a-biodiesel-diesel-fueled-engine
#20
Islam Mohammad Monirul, Haji Hassan Masjuki, Mohammad Abdul Kalam, Nurin Wahidah Mohd Zulkifli, Islam Shancita
The aim of this study is to investigate the effect of the polymethyl acrylate (PMA) additive on the formation of particulate matter (PM) and nitrogen oxide (NOX) emission from a diesel coconut and/or Calophyllum inophyllum biodiesel-fueled engine. The physicochemical properties of 20% of coconut and/or C. inophyllum biodiesel-diesel blend (B20), 0.03 wt% of PMA with B20 (B20P), and diesel fuel were measured and compared to ASTM D6751, D7467, and EN 14214 standard. The test results showed that the addition of PMA additive with B20 significantly improves the cold-flow properties such as pour point (PP), cloud point (CP), and cold filter plugging point (CFPP)...
June 23, 2017: Environmental Science and Pollution Research International
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