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https://www.readbyqxmd.com/read/28441697/hypertension-management-in-a-population-of-older-adults-in-rural-south-africa
#1
Thiago Veiga Jardim, Sheridan Reiger, Shafika Abrahams-Gessel, F Xavier Gomez-Olive, Ryan G Wagner, Alisha Wade, Till W Bärnighausen, Joshua Salomon, Stephen Tollman, Thomas A Gaziano
OBJECTIVE: Assess awareness, treatment, and control of hypertension, as an indication of its management, in rural South Africa, especially regarding modifiers of these variables. METHODS: A population-representative sample of adults aged at least 40 years residing in the rural Agincourt subdistrict (Mpumalanga Province) covered by a long-term health and sociodemographic surveillance system was recruited. In-person interviews, physical exams, and dried blood spots were collected...
June 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28433062/electrospun-nafion-polyacrylonitrile-nanofibers-as-an-ion-exchange-ultrathin-layer-chromatographic-stationary-phase
#2
Yanhui Wang, Susan V Olesik
An ion-exchange method to separate charged biomolecules on ultrathin layer chromatographic (UTLC) plates using electrospun Nafion-Polyacrylonitrile (PAN) nanofibers as the stationary phase is described. Sulfonate groups on Nafion provide the ion-exchange sites. The addition of PAN (a higher molecular weight polymer than Nafion) was used to facilitate the nanofiber formation process using electrospinning. Electrospinning parameters and separation conditions were optimized using fractional factorial design and response surface methodology...
June 1, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28432470/male-behavioural-plasticity-depends-on-maternal-mating-status-in-the-two-spotted-spider-mite
#3
Keiko Oku, Tom P G van den Beuken
In haplodiploid organisms including the two-spotted spider mite, Tetranychus urticae (Acari: Tetranychidae), both unmated and mated females can produce male offspring. A previous study reported that males produced by unmated females (UM males) find pre-reproductive females more quickly than males produced by mated females (M males) in T. urticae. However, it remains unclear what factors cause the difference. We investigated effects of maternal mating status on mate-searching behaviour of their sons by changing the sons' developmental environment...
April 21, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28429823/changes-in-the-gut-microbiome-of-the-chinese-mitten-crab-eriocheir-sinensis-in-response-to-white-spot-syndrome-virus-wssv-infection
#4
Z F Ding, M J Cao, X S Zhu, G H Xu, R L Wang
Intestinal microorganisms play important roles in maintaining host health, but their functions in aquatic animal hosts have yet to be fully elucidated. The Chinese mitten crab, Eriocheir sinensis, is one such example. We attempted to identify the shift of gut microbiota that occurred in response to infection of white spot syndrome virus (WSSV), an emerging viral pathogen in the crab aquaculture industry. The microbiota may exert some control over aspects of the viral pathogenesis. We investigated the changes in composition and structure of the crab gut microbiome during various WSSV infection stages of 6 h post-infection (hpi) and 48 hpi, using a 16S rRNA approach on the MiSeq Illumina sequencing platform...
April 21, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28428694/a-microarray-immunoassay-for-serum-thyrotropin-and-thyroglobulin-using-antibodies-immobilized-on-track-etched-membranes
#5
Bharti Jain, J Kumarasamy, Chandrakala Gholve, Savita Kulkarni, M G R Rajan
Serum thyroglobulin (Tg) and thyroid stimulating hormone (TSH) measurements have evolved as important analytes for monitoring the prognosis of patients with differentiated thyroid cancer, post-thyroidectomy. Individual analyte immunoassay is the current practice in clinical pathology, but the simultaneous assay for all relevant analytes for a given disease, can reduce assay costs, improve patient compliance and give the clinician more information for an unequivocal diagnosis. Microarray immunoassay (MI) can achieve this goal and, hence, we have developed and validated a immuno-radiometric MI for quantitation of serum TSH and Tg by using highly micro-porous polycarbonate (PC) track-etched membranes (TEM) to immobilize the monoclonal anti-TSH and polyclonal anti-Tg antibodies in ~1 mm diameter spots...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28427263/laser-induced-functionalization-of-organo-carbon-interfaces-for-selective-adsorption-of-au-nanoparticles-in-micro-sized-domains
#6
Martin Schade, Steffen Franzka, Nils Hartmann
Laser microprocessing of highly oriented pyrolytic graphite (HOPG) in conjunction with chemical functionalization routines are used to fabricate functional micro-sized domains. Infrared and Auger electron spectroscopy, contact angle measurements and electron microscopy are used for characterization of laser-fabricated structures. HOPG samples are coated with alkylsiloxane monolayers. Laser-induced bromination of coated HOPG samples in gaseous bromine is carried out using a microfocused laser beam at a wavelength of 514 nm and 1/e2 laser spot diameter of about 3 µm...
April 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28423889/withdrawn-polymorphism-of-bola-drb3-gene-and-its-association-with-embryo-development-after-in-vitro-fertilization-in-slovak-spotted-x-holstein-fresian-crossbred-cattle
#7
Dominika Kułaj, Joanna Pokorska, Alexander Makarevič, Lucia Olexikova, Joanna Makulska, Peter Chrenek
Ahead of Print article withdrawn by publisher.
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28422381/comparison-of-multi-institutional-varian-probeam-pencil-beam-scanning-proton-beam-commissioning-data
#8
Ulrich W Langner, John G Eley, Lei Dong, Katja Langen
PURPOSE: Commissioning beam data for proton spot scanning beams are compared for the first two Varian ProBeam sites in the United States, at the Maryland Proton Treatment Center (MPTC) and Scripps Proton Therapy Center (SPTC). In addition, the extent to which beams can be matched between gantry rooms at MPTC is investigated. METHOD: Beam data for the two sites were acquired with independent dosimetry systems and compared. Integrated depth dose curves (IDDs) were acquired with Bragg peak ion chambers in a 3D water tank for pencil beams at both sites...
April 19, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28420333/strategies-and-cost-effectiveness-evaluation-of-persistent-albuminuria-screening-among-high-risk-population-of-chronic-kidney-disease
#9
Huaiyu Wang, Li Yang, Fang Wang, Luxia Zhang
BACKGROUND: Screening for persistent albuminuria among the high-risk population is important for early detection of CKD while studies regarding screening protocol and related cost-effectiveness analysis are limited. This study explored a feasible and cost-efficient screening strategy for detecting persistent albuminuria among the high-risk population. METHODS: A cohort study including 157 clinically stable outpatients with a risk factor of CKD and whose laboratory tests revealed an albumin-creatinine-ratio (ACR) between 30 and 300 mg/g of creatinine during the previous 12 months was conducted to assess the validity of alternative screening strategies...
April 18, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28418232/high-pre-exposure-prophylaxis-uptake-and-early-adherence-among-men-who-have-sex-with-men-and-transgender-women-at-risk-for-hiv-infection-the-prep-brasil-demonstration-project
#10
Brenda Hoagland, Ronaldo I Moreira, Raquel B De Boni, Esper G Kallas, José Valdez Madruga, Ricardo Vasconcelos, Silvia Goulart, Thiago S Torres, Luana M S Marins, Peter L Anderson, Paula M Luz, Iuri da Costa Leite, Albert Y Liu, Valdilea G Veloso, Beatriz Grinsztejn
INTRODUCTION: The efficacy of pre-exposure prophylaxis (PrEP) in preventing sexual acquisition of human immunodeficiency virus (HIV) is well established. Little is known about the feasibility of PrEP implementation in middle-income settings with concentrated epidemics among men who have sex with men (MSM) and transgender women (TGW). METHODS: PrEP Brasil is a prospective, multicentre, open-label demonstration project assessing PrEP delivery in the context of the Brazilian Public Health System...
April 6, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28415208/x-ray-shadow-imprint-of-hydrodynamic-instabilities-on-the-surface-of-inertial-confinement-fusion-capsules-by-the-fuel-fill-tube
#11
A G MacPhee, D T Casey, D S Clark, S Felker, J E Field, S W Haan, B A Hammel, J Kroll, O L Landen, D A Martinez, P Michel, J Milovich, A Moore, A Nikroo, N Rice, H F Robey, V A Smalyuk, M Stadermann, C R Weber
Measurements of hydrodynamic instability growth for a high-density carbon ablator for indirectly driven inertial confinement fusion implosions on the National Ignition Facility are reported. We observe significant unexpected features on the capsule surface created by shadows of the capsule fill tube, as illuminated by laser-irradiated x-ray spots on the hohlraum wall. These shadows increase the spatial size and shape of the fill tube perturbation in a way that can significantly degrade performance in layered implosions compared to previous expectations...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28405177/mapping-mitochondrial-heteroplasmy-in-a-leydig-tumor-by-laser-capture-micro-dissection-and-cycling-temperature-capillary-electrophoresis
#12
Paulo Refinetti, Christian Arstad, William G Thilly, Stephan Morgenthaler, Per Olaf Ekstrøm
BACKGROUND: The growth of tumor cells is accompanied by mutations in nuclear and mitochondrial genomes creating marked genetic heterogeneity. Tumors also contain non-tumor cells of various origins. An observed somatic mitochondrial mutation would have occurred in a founding cell and spread through cell division. Micro-anatomical dissection of a tumor coupled with assays for mitochondrial point mutations permits new insights into this growth process. More generally, the ability to detect and trace, at a histological level, somatic mitochondrial mutations in human tissues and tumors, makes these mutations into markers for lineage tracing...
2017: BMC Clinical Pathology
https://www.readbyqxmd.com/read/28404577/outpatient-treatment-of-severe-acute-malnutrition-response-to-treatment-with-a-reduced-schedule-of-therapeutic-food-distribution
#13
Sheila Isanaka, Stephen R Kodish, Fatou Berthé, Ian Alley, Fabienne Nackers, Kerstin E Hanson, Rebecca F Grais
Background: Community-based management of severe acute malnutrition (SAM) has been shown to be safe and cost-effective, but program coverage remains low. Treatment models that maintain high levels of clinical effectiveness but allow for increased coverage are still needed. A reduced schedule of follow-up, in which children receive clinical follow-up and therapeutic foods on a monthly rather than weekly basis, may be one alternative.Objective: We aimed to describe the safety and feasibility of a monthly distribution of ready-to-use therapeutic food (RUTF) in the treatment of uncomplicated SAM, in terms of clinical response to treatment and household RUTF use...
April 12, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28399857/variability-and-predictors-of-urinary-concentrations-of-organophosphate-flame-retardant-metabolites-among-pregnant-women-in-rhode-island
#14
Megan E Romano, Nicola L Hawley, Melissa Eliot, Antonia M Calafat, Nayana K Jayatilaka, Karl Kelsey, Stephen McGarvey, Maureen G Phipps, David A Savitz, Erika F Werner, Joseph M Braun
BACKGROUND: Organophospate flame retardants (PFRs) are chemicals of emerging concern due to restrictions on polybrominated diphenyl ether flame retardant formulations. We describe the occurrence, variability, and predictors of urinary metabolites of PFRs among pregnant women. METHODS: In 2014-2015, 59 women from Providence, RI provided up to 3 spot urine samples during pregnancy (~12, 28, and 35 weeks' gestation). We created a pooled urine sample per woman and measured nine relevant metabolites in individual and pooled samples...
April 11, 2017: Environmental Health: a Global Access Science Source
https://www.readbyqxmd.com/read/28397912/a-new-heterostructured-sers-substrate-free-standing-silicon-nanowires-decorated-with-graphene-encapsulated-gold-nanoparticles
#15
Yuan Li, John Dykes, Todd Gilliam, Nitin Chopra
Heterostructures of one-dimensional nanowire supported graphene/plasmonic nanoparticles are promising for future SERS-based chemical sensors. In this paper, we report a novel heterostructured SERS substrate composed of free-standing Si nanowires and surface-decorating Au/graphene nanoparticles. We successfully developed a unique CVD approach for the cost-effective and large-scale growth of free-standing Si nanowires. Au nanoparticles were decorated on the Si nanowires using a galvanic deposition - an annealing approach...
April 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28390899/proteomic-analysis-of-arabidopsis-plasma-membranes-reveals-lipopolysaccharide-responsive-changes
#16
Nwaxigombe M Baloyi, Ian A Dubery, Lizelle A Piater
Plant plasma membranes (PMs) contain pattern recognition receptors (PRRs), lately believed to be associated within multicomponent complexes, which perceive microbe-associated molecular pattern (MAMP) molecules like lipopolysaccharides (LPSs) and result in signal transduction events that lead to activated immune defense responses. As such, Arabidopsis thaliana leaves were treated with LPS from Escherichia coli (LPSE.coli) over time, and PM fractions isolated and evaluated using gel-based and subsequent mass spectrometry approaches for identification of LPS-responsive proteins...
May 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28390875/effect-of-non-nutritive-sugars-to-decrease-the-survivorship-of-spotted-wing-drosophila-drosophila-suzukii
#17
Man-Yeon Choi, Siew Bee Tang, Seung-Joon Ahn, Kaushalya G Amarasekare, Peter Shearer, Jana C Lee
In this study, we investigated the effects of non-nutritive sugars and sugar alcohols on the survivorship of spotted wing drosophila, Drosophila suzukii, and found erythritol and erythrose as potentially insecticidal to the fly. In a dose-dependent study, erythritol and erythrose significantly reduced fly longevity, with 100% mortality with 1, 0.5, 0.1 & 0.05M doses after feeding for 7days. When sucrose and erythritol solutions were provided separately to flies for 7days, there was no effect on survivorship regardless of erythritol concentrations...
April 5, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28387613/sexual-reproduction-in-the-citrus-black-spot-pathogen-phyllosticta-citricarpa
#18
Nga T Tran, Andrew K Miles, Ralf G Dietzgen, Megan M Dewdney, Ke Zhang, Jeffrey A Rollins, André Drenth
Citrus black spot (Phyllosticta citricarpa) causes fruit blemishes and premature fruit drop, resulting in significant economic losses in citrus growing areas with summer rainfall across the globe. The mating type locus of P. citricarpa has recently been characterized, revealing the heterothallic nature of this pathogen. However, insight into the occurrence of mating and the impact of completing the sexual cycle of P. citricarpa was lacking. To investigate the occurrence and impact of sexual reproduction, we developed a method to reliably, and for the first time, produce ascospores of P...
April 7, 2017: Phytopathology
https://www.readbyqxmd.com/read/28386009/tungsten-182-heterogeneity-in-modern-ocean-island-basalts
#19
Andrea Mundl, Mathieu Touboul, Matthew G Jackson, James M D Day, Mark D Kurz, Vedran Lekic, Rosalind T Helz, Richard J Walker
New tungsten isotope data for modern ocean island basalts (OIB) from Hawaii, Samoa, and Iceland reveal variable (182)W/(184)W, ranging from that of the ambient upper mantle to ratios as much as 18 parts per million lower. The tungsten isotopic data negatively correlate with (3)He/(4)He. These data indicate that each OIB system accesses domains within Earth that formed within the first 60 million years of solar system history. Combined isotopic and chemical characteristics projected for these ancient domains indicate that they contain metal and are repositories of noble gases...
April 7, 2017: Science
https://www.readbyqxmd.com/read/28385500/successful-strategies-implemented-towards-the-elimination-of-canine-rabies-in-the-western-hemisphere
#20
REVIEW
Andres Velasco-Villa, Luis E Escobar, Anthony Sanchez, Mang Shi, Daniel G Streicker, Nadia F Gallardo-Romero, Fernando Vargas-Pino, Veronica Gutierrez-Cedillo, Inger Damon, Ginny Emerson
Almost all cases of human rabies result from dog bites, making the elimination of canine rabies a global priority. During recent decades, many countries in the Western Hemisphere have carried out large-scale dog vaccination campaigns, controlled their free-ranging dog populations and enforced legislation for responsible pet ownership. This article reviews progress in eliminating canine rabies from the Western Hemisphere. After briefly summarizing the history of control efforts and describing the approaches listed above, we note that programs in some countries have been hindered by societal attitudes and severe economic disparities, which underlines the need to discuss measures that will be required to complete the elimination of canine rabies throughout the region...
April 4, 2017: Antiviral Research
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