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https://www.readbyqxmd.com/read/28107927/electrochemical-detection-of-magnetically-entrapped-dna-sequences-from-complex-samples-by-multiplexed-enzymatic-labelling-application-to-a-transgenic-food-feed-quantitative-survey
#1
C L Manzanares-Palenzuela, J P Martín-Clemente, M J Lobo-Castañón, B López-Ruiz
Monitoring of genetically modified organisms in food and feed demands molecular techniques that deliver accurate quantitative results. Electrochemical DNA detection has been widely described in this field, yet most reports convey qualitative data and application in processed food and feed samples is limited. Herein, the applicability of an electrochemical multiplex assay for DNA quantification in complex samples is assessed. The method consists of the simultaneous magnetic entrapment via sandwich hybridisation of two DNA sequences (event-specific and taxon-specific) onto the surface of magnetic microparticles, followed by bienzymatic labelling...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28107762/thulium-laser-in-interventional-endoscopy-animal-and-human-studies
#2
Gian E Tontini, Helmut Neumann, Luca Pastorelli, Luisa Spina, Flaminia Cavallaro, Paola Soriani, Alessandro Rimondi, Barbara Bruni, Claudio Clemente, Filippo Fagnani, Pavlos Lagoussis, Luca Carmignani, Maurizio Vecchi
Background and study aims The thulium laser system (TLS) is an emerging surgical tool. The 2-μm wavelength provides a confined coagulation depth (0.2 - 0.4 mm) to reduce the potential for inadvertent injuries. For the first time ever, we assessed TLS feasibility for endoscopic hemostasis ex vivo in pigs. In addition, we performed the first in vivo hemostatic treatments in humans. Patients and methods Tissue damage induced by TLS using different settings and optical fibers was compared to that from argon plasma coagulation (APC) in established ex vivo animal models...
January 20, 2017: Endoscopy
https://www.readbyqxmd.com/read/28107753/role-of-central-opioid-on-the-antinociceptive-effect-of-sulfated-polysaccharide-from-the-red-seaweed-solieria-filiformis-in-induced-temporomandibular-joint-pain
#3
Ianna Wivianne Fernandes Araújo, Hellíada Vasconcelos Chaves, José Mário Pachêco, Danielle Rocha Val, Lorena Vasconcelos Vieira, Rodrigo Santos, Raul Sousa Freitas, Renata Line Rivanor, Valdécio Silvano Monteiro, Juliana Trindade Clemente-Napimoga, Mirna Marques Bezerra, Norma Maria Barros Benevides
This study aimed to investigate the effect of sulfated polysaccharide from red seaweed Solieria filiformis (Fraction F II) in the inflammatory hypernociception in the temporomandibular joint (TMJ) of rats. Male Wistar rats were pretreated (30min) with a subcutaneous injection (s.c.) of vehicle or FII (0.03, 0.3 or 3.0mg/kg) followed by intra-TMJ injection of 1.5% Formalin or 5-hydroxytryptamine (5-HT, 225μg/TMJ). In other set of experiments rats were pretreated (15min) with an intrathecal injection of the non-selective opioid receptors Naloxone, or μ-opioid receptor antagonist CTOP, or δ-opioid receptor Naltridole hydrochloride, or κ-opioid receptor antagonist Nor-Binaltorphimine (Nor-BNI) followed by injection of FII (s...
January 17, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28107671/recent-sequence-variation-in-probe-binding-site-affected-detection-of-respiratory-syncytial-virus-group-b-by-real-time-rt-pcr
#4
Everlyn Kamau, Charles N Agoti, Clement S Lewa, John Oketch, Betty E Owor, Grieven P Otieno, Anne Bett, Patricia A Cane, D James Nokes
BACKGROUND: Direct immuno-fluorescence test (IFAT) and multiplex real-time RT-PCR have been central to RSV diagnosis in Kilifi, Kenya. Recently, these two methods showed discrepancies with an increasing number of PCR undetectable RSV-B viruses. OBJECTIVES: Establish if mismatches in the primer and probe binding sites could have reduced real-time RT-PCR sensitivity. STUDY DESIGN: Nucleoprotein (N) and glycoprotein (G) genes were sequenced for real-time RT-PCR positive and negative samples...
January 5, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28107529/complement-activation-and-stat4-expression-are-associated-with-early-inflammation-in-diabetic-wounds
#5
Kenji M Cunnion, Neel K Krishna, Haree K Pallera, Angela Pineros-Fernandez, Magdielis Gregory Rivera, Pamela S Hair, Brittany P Lassiter, Ryan Huyck, Mary A Clements, Antoinette F Hood, George T Rodeheaver, Patrick S Cottler, Jerry L Nadler, Anca D Dobrian
: Diabetic non-healing wounds are a major clinical problem. The mechanisms leading to poor wound healing in diabetes are multifactorial but unresolved inflammation may be a major contributing factor. The complement system (CS) is the most potent inflammatory cascade in humans and contributes to poor wound healing in animal models. Signal transducer and activator of transcription 4 (STAT4) is a transcription factor expressed in immune and adipose cells and contributes to upregulation of some inflammatory chemokines and cytokines...
2017: PloS One
https://www.readbyqxmd.com/read/28105885/denosumab-in-patients-with-giant-cell-tumor-of-bone-in-norway-results-from-a-nationwide-cohort
#6
Kjetil Boye, Nina Louise Jebsen, Olga Zaikova, Heidi Knobel, Ayca M Løndalen, Clement S Trovik, Odd R Monge, Kirsten Sundby Hall
BACKGROUND: Denosumab is a relatively new treatment option for patients with giant-cell tumor of bone (GCTB). The purpose of this study was to report the results for patients treated in Norway. MATERIALS AND METHODS: Patients treated with denosumab for GCTB were identified from the clinical databases at the Norwegian sarcoma reference centers. Data were retrieved from the clinical databases and supplemented by retrospective review of patient records. Denosumab was given as a subcutaneous injection every 4 weeks with loading doses on day 8 and 15 in cycle 1...
January 20, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28105650/what-is-the-long-run-impact-of-learning-mathematics-during-preschool
#7
Tyler W Watts, Greg J Duncan, Douglas H Clements, Julie Sarama
The current study estimated the causal links between preschool mathematics learning and late elementary school mathematics achievement using variation in treatment assignment to an early mathematics intervention as an instrument for preschool mathematics change. Estimates indicate (n = 410) that a standard deviation of intervention-produced change at age 4 is associated with a 0.24-SD gain in achievement in late elementary school. This impact is approximately half the size of the association produced by correlational models relating later achievement to preschool math change, and is approximately 35% smaller than the effect reported by highly controlled ordinary least squares (OLS) regression models (Claessens et al...
January 20, 2017: Child Development
https://www.readbyqxmd.com/read/28104073/af-ablation-guided-by-spatiotemporal-electrogram-dispersion%C3%A2-without-pulmonary-vein-isolation-a-wholly-patient-tailored-approach
#8
Julien Seitz, Clément Bars, Guillaume Théodore, Sylvain Beurtheret, Nicolas Lellouche, Michel Bremondy, Ange Ferracci, Jacques Faure, Guillaume Penaranda, Masatoshi Yamazaki, Uma Mahesh R Avula, Laurence Curel, Sabrina Siame, Omer Berenfeld, André Pisapia, Jérôme Kalifa
BACKGROUND: The use of intracardiac electrograms to guide atrial fibrillation (AF) ablation has yielded conflicting results. OBJECTIVES: The authors evaluated the usefulness of spatiotemporal dispersion, a visually recognizable electric footprint of AF drivers, for the ablation of all forms of AF. METHODS: The authors prospectively enrolled 105 patients admitted for AF ablation. AF was sequentially mapped in both atria with a 20-pole PentaRay catheter...
January 24, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28102899/b-type-natriuretic-peptide-guided-treatment-for-heart-failure
#9
REVIEW
Julie McLellan, Carl J Heneghan, Rafael Perera, Alison M Clements, Paul P Glasziou, Karen E Kearley, Nicola Pidduck, Nia W Roberts, Sally Tyndel, F Lucy Wright, Clare Bankhead
BACKGROUND: Heart failure is a condition in which the heart does not pump enough blood to meet all the needs of the body. Symptoms of heart failure include breathlessness, fatigue and fluid retention. Outcomes for patients with heart failure are highly variable; however on average, these patients have a poor prognosis. Prognosis can be improved with early diagnosis and appropriate use of medical treatment, use of devices and transplantation. Patients with heart failure are high users of healthcare resources, not only due to drug and device treatments, but due to high costs of hospitalisation care...
December 22, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28101929/dysgeusia-and-health-related-quality-of-life-of-cancer-patients-receiving-chemotherapy-a-cross-sectional-study
#10
E Ponticelli, M Clari, S Frigerio, A De Clemente, I Bergese, E Scavino, A Bernardini, C Sacerdote
The aim of the study was to evaluate taste disorders in patients receiving chemotherapy and to assess the impact of dysgeusia on patients' health-related quality of life (HRQOL). A total of 289 patients with a diagnosis of malignant solid or haematological cancer undergoing chemotherapy completed a questionnaire assessing dysgeusia and HRQOL. Sixty-four per cent of patients developed dysgeusia after and during chemotherapy. A statistically significant correlation was found between type of cancer and dysgeusia (p = ...
January 19, 2017: European Journal of Cancer Care
https://www.readbyqxmd.com/read/28101437/characterization-of-16-microsatellite-markers-for-the-oreinotinus-clade-of-viburnum-adoxaceae
#11
Syndi Barish, Mónica Arakaki, Erika J Edwards, Michael J Donoghue, Wendy L Clement
PREMISE OF THE STUDY: Microsatellite loci were isolated from four species of Viburnum (Adoxaceae) to study population structure and assess species boundaries among morphologically similar South American Viburnum species of the Oreinotinus clade. METHODS AND RESULTS: Using a microsatellite-enriched library and mining next-generation sequence data, 16 microsatellites were developed. Each locus was tested on two populations of V. triphyllum and one population of V...
December 2016: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28101261/external-and-internal-barriers-to-studying-can-affect-student-success-and-retention-in-a-diverse-classroom
#12
Laurence Clement
Although a majority of under-represented minority (URM) students begin their postsecondary education at community colleges, little is known about barriers to success and retention for transfer-bound science students. This study focuses on some of the barriers that affect these students' ability to study adequately for a community college "gateway" course. It tests whether instructors' expectations of study time were realistic for community college students and whether students reported facing external barriers, such as job and family responsibilities, or internal barriers to studying, such as lack of motivational, cognitive, and metacognitive abilities, all of which have been shown to impact academic success and retention...
December 2016: Journal of Microbiology & Biology Education: JMBE
https://www.readbyqxmd.com/read/28100507/efficacy-of-iron-supplement-bars-to-reduce-anemia-in-urban-indian-women-a-cluster-randomized-controlled-trial
#13
Rajvi Mehta, Alyssa C Platt, Xizi Sun, Mukesh Desai, Dennis Clements, Elizabeth L Turner
BACKGROUND: India's high prevalence of iron-deficiency anemia has largely been attributed to the local diet consisting of nonheme iron, which has lower absorption than that of heme iron. OBJECTIVE: We assessed the efficacy of the consumption of iron-supplement bars in raising hemoglobin concentrations and hematocrit percentages in anemic (hemoglobin concentration <12 g/dL) Indian women of reproductive age. DESIGN: The Let's be Well Red study was a 90-d, pair-matched, cluster-randomized controlled trial...
January 18, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28099885/oestrus-synchronisation-and-superovulation-alter-the-cervicovaginal-mucus-proteome-of-the-ewe
#14
Jessie W Maddison, Jessica P Rickard, Naomi C Bernecic, Guillaume Tsikis, Clement Soleilhavoup, Valerie Labas, Lucie Combes-Soia, Gregoire Harichaux, Xavier Druart, Tamara Leahy, Simon P de Graaf
: Although essential for artificial insemination (AI) and MOET (multiple ovulation and embryo transfer), oestrus synchronisation and superovulation are associated with increased female reproductive tract mucus production and altered sperm transport. The effects of such breeding practices on the ovine cervicovaginal (CV) mucus proteome have not been detailed. The aim of this study was to qualitatively and quantitatively investigate the Merino CV mucus proteome in naturally cycling (NAT) ewes at oestrus and mid-luteal phase, and quantitatively compare CV oestrus mucus proteomes of NAT, progesterone synchronised (P4) and superovulated (SOV) ewes...
January 15, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28099785/a-dual-topoisomerase-inhibitor-of-intense-pro-apoptotic-and-antileukemic-nature-for-cancer-treatment
#15
Christopher Meier, Tamara N Steinhauer, Fabian Koczian, Birte Plitzko, Katharina Jarolim, Ulrich Girreser, Simone Braig, Doris Marko, Angelika M Vollmar, Bernd Clement
Classic cytotoxic drugs constantly remain an indispensable instrument in antitumor therapy due to their effectiveness and a more prevalent insensibility against tumor resistance mechanisms. We describe the favorable properties of P8-D6, a powerful inductor of apoptosis caused by an equipotent inhibition of human topoisomerase I and II activities. A broad spectrum effect against human tumor cell lines in nanomolar concentrations as well as strong anti-leukemic effects were shown and proven to be superior to marketed topo-targeting drugs and dual topoisomerase inhibitors in clinical trials...
January 18, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28099316/pneumatic-vitreolysis-for-relief-of-vitreomacular-traction
#16
Clement K Chan, Jason N Crosson, Calvin E Mein, Noha Daher
PURPOSE: To evaluate the outcome of perfluoropropane (C3F8) gas injection for symptomatic vitreomacular traction (VMT) with or without Stage 2 macular hole (MH). METHODS: A retrospective review of eyes with VMT treated with 0.3 mL of C3F8 gas was performed. Patients avoided the supine position until gas resolution. Patients with small MH maintained partial face-down positioning. RESULTS: Forty-nine consecutive patients (50 eyes) with symptomatic VMT underwent pneumatic vitreolysis between 2010 and 2016...
January 17, 2017: Retina
https://www.readbyqxmd.com/read/28098982/glycine-substitutions-in-collagen-heterotrimers-alter-triple-helical-assembly
#17
Katherine A Clements, Amanda M Acevedo-Jake, Douglas R Walker, Jeffrey D Hartgerink
Osteogenesis imperfecta typically results from missense mutations in the collagen genome where the required glycine residues are replaced with another amino acid. Many models have attempted to replicate the structure of mutated collagen on the triple helix level. However, composition and register control of the triple helix is complicated and requires extreme precision, especially when these destabilizing mutations are present. Here we present mutations to a composition- and register-controlled AAB helix where one of the requisite glycines in the A chain of the triple helix is changed to serine or alanine...
January 18, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28098948/phosphorus-acquisition-efficiency-in-arbuscular-mycorrhizal-maize-is-correlated-with-the-abundance-of-root-external-hyphae-and-the-accumulation-of-transcripts-encoding-pht1-phosphate-transporters
#18
Ruairidh J H Sawers, Simon F Svane, Clement Quan, Mette Grønlund, Barbara Wozniak, Mesfin-Nigussie Gebreselassie, Eliécer González-Muñoz, Ricardo A Chávez Montes, Ivan Baxter, Jerome Goudet, Iver Jakobsen, Uta Paszkowski
Plant interactions with arbuscular mycorrhizal fungi have long attracted interest for their potential to promote more efficient use of mineral resources in agriculture. Their use, however, remains limited by a lack of understanding of the processes that determine the outcome of the symbiosis. In this study, the impact of host genotype on growth response to mycorrhizal inoculation was investigated in a panel of diverse maize lines. A panel of 30 maize lines was evaluated with and without inoculation with arbuscular mycorrhizal fungi...
January 18, 2017: New Phytologist
https://www.readbyqxmd.com/read/28098528/spread-and-evolution-of-respiratory-syncytial-virus-a-genotype-on1-coastal-kenya-2010-2015
#19
James R Otieno, Everlyn M Kamau, Charles N Agoti, Clement Lewa, Grieven Otieno, Ann Bett, Mwanajuma Ngama, Patricia A Cane, D James Nokes
In February 2012, the novel respiratory syncytial virus (RSV) group A, genotype ON1, was detected in Kilifi County, coastal Kenya. ON1 is characterized by a 72-nt duplication within the highly variable G gene (encoding the immunogenic attachment surface protein). Cases were diagnosed through surveillance of pneumonia in children at the county hospital. Analysis of epidemiologic, clinical, and sequence data of RSV-A viruses detected over 5 RSV seasons (2010/2011 to 2014/2015) indicated the following: 1) replacement of previously circulating genotype GA2 ON1, 2) an abrupt expansion in the number of ON1 variants detected in the 2014/2015 epidemic, 3) recently accumulation of amino acid substitutions within the ON1 duplicated sequence, and 4) no clear evidence of altered pathogenicity relative to GA2...
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28096456/antibody-conjugated-dna-based-nanocarriers-intercalated-with-doxorubicin-eliminate-myofibroblasts-in-explants-of-human-lens-tissue
#20
Jacquelyn Gerhart, Marvin Greenbaum, Lou Casta, Anthony Clemente, Keith Mathers, Robert Getts, Mindy George-Weinstein
Posterior capsule opacification (PCO) occurs in some adults and most children following cataract surgery. The fibrotic form of PCO arises, in part, from migratory, contractile myofibroblasts that deform the lens capsule and impair vision. In short-term cultures of human anterior lens tissue, myofibroblasts emerge from Myo/Nog cells that are identified with the G8 monoclonal antibody and by their expression of the MyoD transcription factor and bone morphogenetic protein inhibitor noggin. In this study, we tested the hypothesis that targeted depletion of Myo/Nog cells with the G8 mAb conjugated to three-dimensional DNA nanocarriers intercalated with Doxorubicin (G8:3DNA:Dox) would prevent the accumulation of myofibroblasts in long-term, serum and growth factor free cultures of human lens tissue obtained by capsulorhexis...
January 17, 2017: Journal of Pharmacology and Experimental Therapeutics
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