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https://www.readbyqxmd.com/read/28637075/-vitamins-and-minerals-in-oncology
#1
Julian Walter Holch, Marlies Michl, Volker Heinemann, Nicole Erickson
The use of vitamins and minerals to prevent cancer as well as their supportive use in oncological patients is widespread and often occurs without the knowledge of the treating physician. Beyond general recommendations with regard to a balanced and healthy diet, no evidence exists supporting the use of vitamins and minerals in the prevention of cancer. Furthermore, the diet of oncological patients should contain vitamins and minerals of the same quantity as for healthy individuals. In particular, there is currently no rationale for a high-dosage administration of antioxidants...
June 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28636930/a-tonoplast-p3b-atpase-mediates-fusion-of-two-types-of-vacuoles-in-petal-cells
#2
Marianna Faraco, Yanbang Li, Shuangjiang Li, Cornelis Spelt, Gian Pietro Di Sansebastiano, Lara Reale, Francesco Ferranti, Walter Verweij, Ronald Koes, Francesca M Quattrocchio
It is known that plant cells can contain multiple distinct vacuoles; however, the abundance of multivacuolar cells and the mechanisms underlying vacuolar differentiation and communication among different types of vacuoles remain unknown. PH1 and PH5 are tonoplast P-ATPases that form a heteromeric pump that hyper-acidifies the central vacuole (CV) of epidermal cells in petunia petals. Here, we show that the sorting of this pump and other vacuolar proteins to the CV involves transit through small vacuoles: vacuolinos...
June 20, 2017: Cell Reports
https://www.readbyqxmd.com/read/28636910/prp40-homolog-a-is-a-novel-centrin-target
#3
Adalberto Díaz Casas, Walter J Chazin, Belinda Pastrana-Ríos
Pre-mRNA processing protein 40 (Prp40) is a nuclear protein that has a role in pre-mRNA splicing. Prp40 possesses two leucine-rich nuclear export signals, but little is known about the function of Prp40 in the export process. Another protein that has a role in protein export is centrin, a member of the EF-hand superfamily of Ca(2+)-binding proteins. Prp40 was found to be a centrin target by yeast-two-hybrid screening using both Homo sapiens centrin 2 (Hscen2) and Chlamydomonas reinhardtii centrin (Crcen). We identified a centrin-binding site within H...
June 20, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28636646/variation-in-hunting-behaviour-in-neighbouring-chimpanzee-communities-in-the-budongo-forest-uganda
#4
Catherine Hobaiter, Liran Samuni, Caroline Mullins, Walter John Akankwasa, Klaus Zuberbühler
Hunting and sharing of meat is seen across all chimpanzee sites, with variation in prey preferences, hunting techniques, frequencies, and success rates. Here, we compared hunting and meat-eating behaviour in two adjacent chimpanzee communities (Pan troglodytes schweinfurthii) of Budongo Forest, Uganda: the Waibira and Sonso communities. We observed consistent between-group differences in prey-species preferences and in post-hunting behaviour. Sonso chimpanzees show a strong prey preference for Guereza colobus monkeys (Colobus guereza occidentalis; 74...
2017: PloS One
https://www.readbyqxmd.com/read/28636363/distinct-protein-hydration-water-species-defined-by-spatially-resolved-spectra-of-intermolecular-vibrations
#5
Viren Sureshkumar Pattni, Tatiana Vasilevskaya, Walter Thiel, Matthias Heyden
In this molecular dynamics simulation study, we analyze intermolecular vibrations in the hydration shell of a solvated enyzme, the membrane type 1--matrix metalloproteinase, with high spatial resolution. Our approach allows us to characterize vibrational signatures of the local hydrogen bond network, the translational mobility of water molecules, as well as the molecular entropy, in specific local environments. Our study demonstrates the heterogeneity of water properties within the hydration shell of a complex biomolecule...
June 21, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28634851/multi-step-biocatalytic-depolymerization-of-lignin
#6
Pere Picart, Haifeng Liu, Philipp M Grande, Nico Anders, Leilei Zhu, Jürgen Klankermayer, Walter Leitner, Pablo Domínguez de María, Ulrich Schwaneberg, Anett Schallmey
Lignin is a biomass-derived aromatic polymer that has been identified as a potential renewable source of aromatic chemicals and other valuable compounds. The valorization of lignin, however, represents a great challenge due to its high inherent functionalization, what compromises the identification of chemical routes for its selective depolymerization. In this work, an in vitro biocatalytic depolymerization process is presented, that was applied to lignin samples obtained from beech wood through OrganoCat pretreatment, resulting in a mixture of lignin-derived aromatic monomers...
June 21, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28634455/fertilizing-a-patient-engagement-ecosystem-to-innovate-healthcare-toward-the-first-italian-consensus-conference-on-patient-engagement
#7
Guendalina Graffigna, Serena Barello, Giuseppe Riva, Mariarosaria Savarese, Julia Menichetti, Gianluca Castelnuovo, Massimo Corbo, Alessandra Tzannis, Antonio Aglione, Donato Bettega, Anna Bertoni, Sarah Bigi, Daniela Bruttomesso, Claudia Carzaniga, Laura Del Campo, Silvia Donato, Silvia Gilardi, Chiara Guglielmetti, Michele Gulizia, Mara Lastretti, Valeria Mastrilli, Antonino Mazzone, Giovanni Muttillo, Silvia Ostuzzi, Gianluca Perseghin, Natalia Piana, Giuliana Pitacco, Gianluca Polvani, Massimo Pozzi, Livio Provenzi, Giulia Quaglini, Mariagrazia Rossi, Paola Varese, Natalia Visalli, Elena Vegni, Walter Ricciardi, A Claudio Bosio
Currently we observe a gap between theory and practices of patient engagement. If both scholars and health practitioners do agree on the urgency to realize patient engagement, no shared guidelines exist so far to orient clinical practice. Despite a supportive policy context, progress to achieve greater patient engagement is patchy and slow and often concentrated at the level of policy regulation without dialoguing with practitioners from the clinical field as well as patients and families. Though individual clinicians, care teams and health organizations may be interested and deeply committed to engage patients and family members in the medical course, they may lack clarity about how to achieve this goal...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28634143/pcr-based-verification-of-positive-rapid-diagnostic-tests-for-intestinal-protozoa-infections-with-variable-test-band-intensity
#8
Sören L Becker, Ivan Müller, Pascal Mertens, Mathias Herrmann, Leyli Zondie, Lindsey Beyleveld, Markus Gerber, Rosa du Randt, Uwe Pühse, Cheryl Walter, Jürg Utzinger
Stool-based rapid diagnostic tests (RDTs) for pathogenic intestinal protozoa (e.g. Cryptosporidium spp. and Giardia intestinalis) allow for prompt diagnosis and treatment in resource-constrained settings. Such RDTs can improve individual patient management and facilitate population-based screening programmes in areas without microbiological laboratories for confirmatory testing. However, RDTs are difficult to interpret in case of 'trace' results with faint test band intensities and little is known about whether such ambiguous results might indicate 'true' infections...
June 17, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28633767/temporal-variation-in-ankle-fractures-and-orthopedic-resident-program-planning-in-an-urban-level-1-trauma-center
#9
Aaron Wynkoop, Osy Ndubaku, Norman Walter, Theresa Atkinson
Previous studies have described the mechanism of ankle fractures, their seasonal variation, and fracture patterns but never in conjunction. In addition, the cohorts previously studied were either not from trauma centers or were often dominated by low-energy mechanisms. The present study aimed to describe the epidemiology of ankle fractures presenting to an urban level 1 trauma center. The records from an urban level 1 trauma center located in the Midwestern United States were retrospectively reviewed, and the injury mechanism and energy, time of injury, day of week, month, and patient characteristics (age, gender, comorbidities, smoking status) were collected...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28633534/neuromuscular-electrical-stimulation-improves-exercise-tolerance-in-patients-with-advanced-heart-failure-on-continuous-intravenous-inotropic-support-use-randomized-controlled-trial
#10
Patrícia Forestieri, Douglas W Bolzan, Vinícius B Santos, Rita Simone Lopes Moreira, Dirceu Rodrigues de Almeida, Renata Trimer, Flávio de Souza Brito, Audrey Borghi-Silva, Antonio Carlos de Camargo Carvalho, Ross Arena, Walter J Gomes, Solange Guizilini
OBJECTIVE: To evaluate the impact of a short-term neuromuscular electrical stimulation program on exercise tolerance in hospitalized patients with advanced heart failure who have suffered an acute decompensation and are under continuous intravenous inotropic support. DESIGN: A randomized controlled study. SUBJECTS: Initially, 195 patients hospitalized for decompensated heart failure were recruited, but 70 were randomized. INTERVENTION: Patients were randomized into two groups: control group subject to the usual care ( n = 35); neuromuscular electrical stimulation group ( n = 35) received daily training sessions to both lower extremities for around two weeks...
June 1, 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/28633524/charge-migration-in-eyring-walter-and-kimball-s-1944-model-of-the-electronically-excited-hydrogen-molecule-ion
#11
Dennis J Diestler, Gunter Hermann, Jörn Manz
In an elementary variational treatment of the electronic structure of H2+ Eyring, Walter and Kimball (EWK) serendipitously discovered charge migration (CM) in 1944. Using an analytic expression for the electronic probability density (EPD), they found that if the electron is initially localized on one of the protons (by taking the initial state to be a superposition of the ground and first-excited electronic energy eigenstates), then it oscillates adiabatically between fixed protons with a period T inversely proportional to the energy gap between the eigenstates...
June 21, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28633443/nod2-genetic-variants-predispose-one-of-two-familial-adenomatous-polyposis-siblings-to-pouchitis-through-microbiome-dysbiosis
#12
Kathleen M Schieffer, Justin R Wright, Leonard R Harris, Sue Deiling, Zhaohai Yang, Regina Lamendella, Gregory S Yochum, Walter A Koltun
Background and Aims: Individuals with familial adenomatous polyposis (FAP) may undergo a total proctocolectomy with ileal pouch-anal anastomosis (IPAA) to surgically treat their disease. Inflammation of the ileal pouch, termed pouchitis, is uncommon in FAP patients but prevalent in patients who received IPAA for ulcerative colitis, a type of inflammatory bowel disease (IBD). Methods and Results: We report on two FAP siblings, living in the same household, who underwent IPAA surgery within one week of each other...
June 19, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28633097/results-of-the-first-international-hiv-1-coreceptor-proficiency-panel-test
#13
Eva Heger, Rolf Kaiser, Elena Knops, Maria Neumann-Fraune, Eugen Schuelter, Alejandro Pironti, Thomas Lengauer, Hauke Walter, Saleta Sierra
BACKGROUND: Quality Assurance (QA) programs are essential to evaluate performance in diagnostics laboratories. OBJECTIVES: We present the results from the first QA for HIV-1 genotypic tropism testing, organized and coordinated by the Institute of Virology at the University of Cologne. STUDY DESIGN: 12 cell culture-derived viral strains of different HIV-1 clades from the NIH AIDS Reagent Program were sent to the participants to be processed with their standard diagnostic methods Fasta files containing the V3 region sequence were centrally analyzed at the Institute of Virology, Cologne...
June 10, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28632941/systematic-review-of-carotid-artery-procedures-and-the-volume-outcome-relationship-in-europe
#14
REVIEW
P Phillips, E Poku, M Essat, H B Woods, E A Goka, E C Kaltenthaler, P Shackley, S Walters, J A Michaels
BACKGROUND: Hospitals that conduct more procedures on the carotid arteries may achieve better outcomes. In the context of ongoing reconfiguration of UK vascular services, this systematic review was conducted to evaluate the relationship between the volume of carotid procedures and outcomes, including mortality and stroke. METHODS: Searches of electronic databases identified studies that reported the effect of hospital or clinician volume on outcomes. Reference and citation searches were also performed...
June 20, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28632910/withdrawn-hypnosis-for-children-undergoing-dental-treatment
#15
REVIEW
Sharifa Al-Harasi, Paul F Ashley, David R Moles, Susan Parekh, Val Walters
BACKGROUND: Managing children is a challenge that many dentists face. Many non-pharmacological techniques have been developed to manage anxiety and behavioural problems in children, such us: 'tell, show & do', positive reinforcement, modelling and hypnosis. The use of hypnosis is generally an overlooked area, hence the need for this review. OBJECTIVES: This systematic review attempted to answer the question: What is the effectiveness of hypnosis (with or without sedation) for behaviour management of children who are receiving dental care in order to allow successful completion of treatment?Null hypothesis: Hypnosis has no effect on the outcome of dental treatment of children...
June 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28632501/evaluation-of-automatic-dose-rate-control-for-flat-panel-imaging-using-a-spatial-frequency-domain-figure-of-merit
#16
Michiel Dehairs, Hilde Bosmans, Walter Desmet, Nicholas W Marshall
Current automatic dose rate controls (ADRCs) of dynamic x-ray imaging systems adjust acquisition parameters in response to changes in patient thickness in order to achieve a constant signal level in the image receptor. This work compares a 3 parameter (3P) ADRC control to a more flexible 5-parameter (5P) method to meet this goal. A phantom composed of 15 composite poly(methyl) methacrylate (PMMA)/aluminium (Al) plates was imaged on a Siemens Artis Q dynamic system using standard 3P and 5P ADRC technique. Phantom thickness covered a water equivalent thickness range of 2...
June 20, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28632323/clinical-outcomes-of-hla-dpb1-mismatches-in-10-10-hla-matched-unrelated-donor-recipient-pairs-undergoing-allogeneic-stem-cell-transplant
#17
Ann M Moyer, Shahrukh K Hashmi, Cynthia M Kroning, Walter K Kremers, Steven R De Goey, Mrinal Patnaik, Mark Litzow, Dennis A Gastineau, William J Hogan, Eapen K Jacob, Justin D Kreuter, Laurie L Wakefield, Manish J Gandhi
OBJECTIVE: HLA-DPB1 matching may impact allogeneic hematopoietic stem cell transplantation (ASCT) outcomes; however, this locus is not in linkage disequilibrium with the remainder of the HLA genes. After classifying HLA-DPB1 mismatches based on T-cell epitope, avoiding non-permissive mismatches may impact survival. We tested this hypothesis at a single academic institution. METHODS: Retrospective HLA-DPB1 genotyping was performed on 153 adult patients who underwent ASCT and unrelated donors matched for HLA-A, B, C, DRB1 and DQB1 loci (10/10)...
June 20, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28632317/qm-mm-study-on-the-photoreactions-of-dark-and-light-adapted-states-of-a-blue-light-ytva-lov-photoreceptor
#18
Xue-Ping Chang, Yuan-Jun Gao, Wei-Hai Fang, Ganglong Cui, Walter Thiel
The dark- and light-adapted states of YtvA LOV domains exhibit distinct excited-state behavior. We have employed high-level QM(MS-CASPT2)/MM calculations to study the photochemical reactions of the dark- and light-adapted states. The photoreaction from the dark-adapted state starts with an S1→T1 intersystem crossing followed by a triplet-state hydrogen transfer from the thiol to the flavin moiety that produces a diradical intermediate, and a subsequent internal conversion that triggers a barrierless C-S bond formation in the S0 state...
June 20, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28631724/microscopic-origins-of-the-large-piezoelectricity-of-leadfree-ba-ca-zr-ti-o3
#19
Yousra Nahas, Alireza Akbarzadeh, Sergei Prokhorenko, Sergey Prosandeev, Raymond Walter, Igor Kornev, Jorge Íñiguez, L Bellaiche
In light of directives around the world to eliminate toxic materials in various technologies, finding lead-free materials with high piezoelectric responses constitutes an important current scientific goal. As such, the recent discovery of a large electromechanical conversion near room temperature in (1-x)Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 compounds has directed attention to understanding its origin. Here, we report the development of a large-scale atomistic scheme providing a microscopic insight into this technologically promising material...
June 20, 2017: Nature Communications
https://www.readbyqxmd.com/read/28631381/tec-controls-pluripotency-and-early-cell-fate-decisions-of-human-pluripotent-stem-cells-via-regulation-of-fgf2-secretion
#20
Tereza Vanova, Zaneta Konecna, Zuzana Zbonakova, Giuseppe La Venuta, Karolina Zoufalova, Sarka Jelinkova, Miroslav Varecha, Vladimir Rotrekl, Pavel Krejci, Walter Nickel, Petr Dvorak, Michaela Kunova Bosakova
Human pluripotent stem cells (hPSC) require signaling provided by fibroblast growth factor (FGF) receptors. This can be initiated by the recombinant FGF2 ligand supplied exogenously, but hPSC further support their niche by secretion of endogenous FGF2. In this study, we describe a role of TEC kinase (tyrosine kinase expressed in hepatocellular carcinoma) in this process. We show that TEC-mediated FGF2 secretion is essential for hPSC self-renewal, and its lack mediates specific differentiation. Following both shRNA- and siRNA-mediated TEC knock-down, hPSC secrete less FGF2...
June 20, 2017: Stem Cells
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