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https://www.readbyqxmd.com/read/28335024/impaired-dual-tasking-in-parkinson-s-disease-is-associated-with-reduced-focusing-of-cortico-striatal-activity
#1
Freek Nieuwhof, Bastiaan R Bloem, Miriam F Reelick, Esther Aarts, Inbal Maidan, Anat Mirelman, Jeffrey M Hausdorff, Ivan Toni, Rick C Helmich
Impaired dual tasking, namely the inability to concurrently perform a cognitive and a motor task (e.g. 'stops walking while talking'), is a largely unexplained and frequent symptom of Parkinson's disease. Here we consider two circuit-level accounts of how striatal dopamine depletion might lead to impaired dual tasking in patients with Parkinson's disease. First, the loss of segregation between striatal territories induced by dopamine depletion may lead to dysfunctional overlaps between the motor and cognitive processes usually implemented in parallel cortico-striatal circuits...
March 17, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28334940/aav9-delivered-bispecific-nanobody-attenuates-amyloid-burden-in-the-gelsolin-amyloidosis-mouse-model
#2
Adriaan Verhelle, Nisha Nair, Inge Everaert, Wouter Van Overbeke, Lynn Supply, Olivier Zwaenepoel, Cindy Peleman, Jo Van Dorpe, Tony Lahoutte, Nick Devoogdt, Wim Derave, Marinee K Chuah, Thierry Vanden Driessche, Jan Gettemans
Gelsolin amyloidosis is a dominantly inherited, incurable type of amyloidosis. A single point mutation in the gelsolin gene (G654A is most common) results in the loss of a Ca2+  binding site in the second gelsolin domain. Consequently, this domain partly unfolds and exposes an otherwise buried furin cleavage site at the surface. During secretion of mutant plasma gelsolin consecutive cleavage by furin and MT1-MMP results in the production of 8 and 5 kDa amyloidogenic peptides. Nanobodies that are able to (partly) inhibit furin or MT1-MMP proteolysis have previously been reported...
February 21, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334613/role-of-mitochondrial-metabolism-in-the-control-of-early-lineage-progression-and-aging-phenotypes-in-adult-hippocampal-neurogenesis
#3
Ruth Beckervordersandforth, Birgit Ebert, Iris Schäffner, Jonathan Moss, Christian Fiebig, Jaehoon Shin, Darcie L Moore, Laboni Ghosh, Mariela F Trinchero, Carola Stockburger, Kristina Friedland, Kathrin Steib, Julia von Wittgenstein, Silke Keiner, Christoph Redecker, Sabine M Hölter, Wei Xiang, Wolfgang Wurst, Ravi Jagasia, Alejandro F Schinder, Guo-Li Ming, Nicolas Toni, Sebastian Jessberger, Hongjun Song, D Chichung Lie
No abstract text is available yet for this article.
March 22, 2017: Neuron
https://www.readbyqxmd.com/read/28334563/quality-improvement-initiatives-lead-to-reduction-in-nulliparous-term-singleton-vertex-cesarean-delivery-rate
#4
Mary A Vadnais, Michele R Hacker, Neel T Shah, JoAnn Jordan, Anna M Modest, Molly Siegel, Toni H Golen
BACKGROUND: The nulliparous term singleton vertex (NTSV) cesarean delivery rate has been recognized as a meaningful benchmark. Variation in the NTSV cesarean delivery rate among hospitals and providers suggests many hospitals may be able to safely improve their rates. The NTSV cesarean delivery rate at the authors' institution was higher than state and national averages. This study was conducted to determine the influence of a set of quality improvement interventions on the NTSV cesarean delivery rate...
February 2017: Joint Commission Journal on Quality and Patient Safety
https://www.readbyqxmd.com/read/28334554/rapid-establishment-of-the-european-bank-for-induced-pluripotent-stem-cells-ebisc-the-hot-start-experience
#5
Paul A De Sousa, Rachel Steeg, Elisabeth Wachter, Kevin Bruce, Jason King, Marieke Hoeve, Shalinee Khadun, George McConnachie, Julie Holder, Andreas Kurtz, Stefanie Seltmann, Johannes Dewender, Sascha Reimann, Glyn Stacey, Orla O'Shea, Charlotte Chapman, Lyn Healy, Heiko Zimmermann, Bryan Bolton, Trisha Rawat, Isobel Atkin, Anna Veiga, Bernd Kuebler, Blanca Miranda Serano, Tomo Saric, Jürgen Hescheler, Oliver Brüstle, Michael Peitz, Cornelia Thiele, Niels Geijsen, Bjørn Holst, Christian Clausen, Majlinda Lako, Lyle Armstrong, Shailesh K Gupta, Alexander J Kvist, Ryan Hicks, Anna Jonebring, Gabriella Brolén, Andreas Ebneth, Alfredo Cabrera-Socorro, Patrik Foerch, Martine Geraerts, Tina C Stummann, Shawn Harmon, Carol George, Ian Streeter, Laura Clarke, Helen Parkinson, Peter W Harrison, Adam Faulconbridge, Luca Cherubin, Tony Burdett, Cesar Trigueros, Minal J Patel, Christa Lucas, Barry Hardy, Rok Predan, Joh Dokler, Maja Brajnik, Oliver Keminer, Ole Pless, Philip Gribbon, Carsten Claussen, Annette Ringwald, Beate Kreisel, Aidan Courtney, Timothy E Allsopp
A fast track "Hot Start" process was implemented to launch the European Bank for Induced Pluripotent Stem Cells (EBiSC) to provide early release of a range of established control and disease linked human induced pluripotent stem cell (hiPSC) lines. Established practice amongst consortium members was surveyed to arrive at harmonised and publically accessible Standard Operations Procedures (SOPs) for tissue procurement, bio-sample tracking, iPSC expansion, cryopreservation, qualification and distribution to the research community...
March 7, 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28334470/yoga-breast-cancer-related-lymphoedema-and-wellbeing-a-descriptive-report-of-women-s-participation-in-a-clinical-trial
#6
Annette Loudon, Tony Barnett, Andrew Williams
AIM: To describe the experiences of women taking part in a yoga intervention trial for breast cancer-related lymphoedema. BACKGROUND: Around 20% of women will experience lymphoedema as a consequence of treatment for breast cancer. Specialist lymphoedema clearing, along with self-management, remains the mainstay of therapy. Yoga, an increasingly popular complementary therapeutic practice, may provide another tool to augment self-management. DESIGN: A qualitative, descriptive design...
March 23, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28334214/tdcs-modulates-visual-gamma-oscillations-and-basal-alpha-activity-in-occipital-cortices-evidence-from-meg
#7
Tony W Wilson, Timothy J McDermott, Mackenzie S Mills, Nathan M Coolidge, Elizabeth Heinrichs-Graham
Transcranial direct-current stimulation (tDCS) is now a widely used method for modulating the human brain, but the resulting physiological effects are not understood. Recent studies have combined magnetoencephalography (MEG) with simultaneous tDCS to evaluate online changes in occipital alpha and gamma oscillations, but no study to date has quantified the offline (i.e., after tDCS) alterations in these responses. Thirty-five healthy adults received active or sham anodal tDCS to the occipital cortices, and then completed a visual stimulation paradigm during MEG that is known to elicit robust gamma and alpha oscillations...
March 10, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28333409/missed-opportunities-for-antimicrobial-stewardship-in-pre-school-children-admitted-to-hospital-with-lower-respiratory-tract-infection
#8
Tony Walls, Erika Stark, Philip Pattemore, Lance Jennings
AIM: To describe the usage of multiplex polymerase chain reaction on nasopharyngeal swab (NPS) samples in pre-school children presenting with lower respiratory tract infection (LRTI) at Christchurch Hospital, and its impact on the use of antibiotics empirically and at discharge. METHODS: This retrospective cohort study included 237 children, ages 3 months to 5 years, admitted to hospital during the winter months of 2012-2015 with a diagnosis of community-acquired LRTI...
March 23, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28332407/unsteady-computational-fluid-dynamics-in-front-crawl-swimming
#9
Mathias Samson, Anthony Bernard, Tony Monnet, Patrick Lacouture, Laurent David
The development of codes and power calculations currently allows the simulation of increasingly complex flows, especially in the turbulent regime. Swimming research should benefit from these technological advances to try to better understand the dynamic mechanisms involved in swimming. An unsteady Computational Fluid Dynamics (CFD) study is conducted in crawl, in order to analyse the propulsive forces generated by the hand and forearm. The k-ω SST turbulence model and an overset grid method have been used...
March 23, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28332323/ramp-reversal-memory-and-phase-boundary-scarring-in-transition-metal-oxides
#10
Naor Vardi, Elihu Anouchi, Tony Yamin, Srimanta Middey, Michael Kareev, Jak Chakhalian, Yonatan Dubi, Amos Sharoni
Transition metal oxides are complex electronic systems that exhibit a multitude of collective phenomena. Two archetypal examples are VO2 and NdNiO3 , which undergo a metal-insulator phase transition (MIT), the origin of which is still under debate. Here this study reports the discovery of a memory effect in both systems, manifested through an increase of resistance at a specific temperature, which is set by reversing the temperature ramp from heating to cooling during the MIT. The characteristics of this ramp-reversal memory effect do not coincide with any previously reported history or memory effects in manganites, electron-glass or magnetic systems...
March 23, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28331976/nosy-neighbours-large-broods-attract-more-visitors-a-field-experiment-in-the-pied-flycatcher-ficedula-hypoleuca
#11
Wiebke Schuett, Pauliina E Järvistö, Sara Calhim, William Velmala, Toni Laaksonen
Life is uncertain. To reduce uncertainty and make adaptive decisions, individuals need to collect information. Individuals often visit the breeding sites of their conspecifics (i.e., "prospect"), likely to assess conspecifics' reproductive success and to use such information to identify high-quality spots for future breeding. We investigated whether visitation rate by prospectors and success of visited sites are causally linked. We manipulated the reproductive success (enlarged, reduced, and control broods) in a nest-box population of migratory pied flycatchers, Ficedula hypoleuca, in Finland...
March 22, 2017: Oecologia
https://www.readbyqxmd.com/read/28329867/effectiveness-of-a-virtual-reality-forest-on-people-with-dementia-a-mixed-methods-pilot-study
#12
Wendy Moyle, Cindy Jones, Toni Dwan, Tanya Petrovich
Purpose of the Study: To measure and describe the effectiveness of a Virtual Reality Forest (VRF) on engagement, apathy, and mood states of people with dementia, and explore the experiences of staff, people with dementia and their families. Design and Methods: A mixed-methods study conducted between February and May 2016. Ten residents with dementia, 10 family members, and 9 care staff were recruited from 2 residential aged care facilities, operated by one care provider, located in Victoria, Australia...
March 15, 2017: Gerontologist
https://www.readbyqxmd.com/read/28329836/convoys-of-social-relations-in-cross-national-context
#13
Kristine J Ajrouch, Heather R Fuller, Hiroko Akiyama, Toni C Antonucci
Purpose of the Study: This study examines national variations in social networks among older adults across 4 countries in diverse regions of the world: Japan, Lebanon, Mexico, and the United States. The aim is to provide insights into universal as well as unique attributes of social networks in later life. Design and Methods: The analyses examine convoy characteristics among adults aged 50+ in metropolitan areas of Japan (N = 557), Lebanon (N = 284), Mexico (N = 556), and the United States (N = 583)...
January 19, 2017: Gerontologist
https://www.readbyqxmd.com/read/28328746/cross-talk-between-insulin-signaling-and-gpcrs
#14
Qin Fu, Qian Shi, Toni M West, Yang K Xiang
Diabetes is a major risk factor for the development of heart failure. One of the hallmarks of diabetes is insulin resistance associated with hyperinsulinemia. The literature shows that insulin and adrenergic signaling is intimately linked to each other; however, whether and how insulin may modulate cardiac adrenergic signaling and cardiac function remains unknown. Notably, recent studies have revealed that insulin receptor and β2 adrenergic receptor (β2AR) forms a membrane complex in animal hearts, bringing together the direct contact between two receptor signaling systems, and forming an integrated and dynamic network...
March 17, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28328525/moving-sum-of-number-of-positive-patient-result-as-a-quality-control-tool
#15
Jiakai Liu, Chin Hon Tan, Tony Badrick, Tze Ping Loh
BACKGROUND: Recently, the total prostate-specific antigen (PSA) assay used in a laboratory had a positive bias of 0.03 μg/L, which went undetected. Consequently, a number of post-prostatectomy patients with previously undetectable PSA concentrations (defined as <0.03 μg/L in that laboratory) were being reported as having detectable PSA, which suggested poorer prognosis according to clinical guidelines. METHODS: Through numerical simulations, we explored (1) how a small bias may evade the detection of routine quality control (QC) procedures with specific reference to the concentration of the QC material, (2) whether the use of 'average of normals' approach may detect such a small bias, and (3) describe the use of moving sum of number of patient results with detectable PSA as an adjunct QC procedure...
March 22, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28326040/effects-of-topical-icing-on-inflammation-angiogenesis-revascularization-and-myofiber-regeneration-in-skeletal-muscle-following-contusion-injury
#16
Daniel P Singh, Zohreh Barani Lonbani, Maria A Woodruff, Tony J Parker, Roland Steck, Jonathan M Peake
Contusion injuries in skeletal muscle commonly occur in contact sport and vehicular and industrial workplace accidents. Icing has traditionally been used to treat such injuries under the premise that it alleviates pain, reduces tissue metabolism, and modifies vascular responses to decrease swelling. Previous research has examined the effects of icing on inflammation and microcirculatory dynamics following muscle injury. However, whether icing influences angiogenesis, collateral vessel growth, or myofiber regeneration remains unknown...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28324887/association-between-hypoxic-volume-and-underlying-hypoxia-induced-gene-expression-in-oropharyngeal-squamous-cell-carcinoma
#17
Yae-Eun Suh, Katherine Lawler, Rhonda Henley-Smith, Lucy Pike, Russell Leek, Sally Barrington, Edward W Odell, Tony Ng, Francesco Pezzella, Teresa Guerrero-Urbano, Mahvash Tavassoli
BACKGROUND: Hypoxia imaging is a promising tool for targeted therapy but the links between imaging features and underlying molecular characteristics of the tumour have not been investigated. The aim of this study was to compare hypoxia biomarkers and gene expression in oropharyngeal squamous cell carcinoma (OPSCC) diagnostic biopsies with hypoxia imaged with (64)Cu-ATSM PET/CT. METHODS: (64)Cu-ATSM imaging, molecular and clinical data were obtained for 15 patients...
March 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28323911/monogenic-diabetes-accounts-for-6-3-of-cases-referred-to-15-italian-pediatric-diabetes-centers-during-2007-2012
#18
Maurizio Delvecchio, Enza Mozzillo, Giuseppina Salzano, Dario Iafusco, Giulio Frontino, Patrizia I Patera, Ivana Rabbone, Valentino Cherubini, Valeria Grasso, Nadia Tinto, Sabrina Giglio, Giovanna Contreas, Rosa Di Paola, Alessandro Salina, Vittoria Cauvin, Stefano Tumini, Giuseppe d'Annunzio, Lorenzo Iughetti, Vilma Mantovani, Giulio Maltoni, Sonia Toni, Marco Marigliano, Fabrizio Barbetti
Context: Etiologic diagnosis of diabetes may impact on therapeutic strategy, and prognosis of chronic complications. Objective: The aim of the study was to establish the relative percentage of different diabetes subtypes in patients attending Italian pediatric diabetes centers, and the influence of etiologic diagnosis on therapy. Design, Setting and Patients: This was a retrospective study. Clinical records of 3781 consecutive patients (age: 0-18 years) referred to fifteen pediatric diabetes clinics and diagnosed with diabetes or IFG between Jan/1/2007 and Dec/31/2012 were examined...
February 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28322211/prey-species-of-franciscana-pontoporia-blainvillei-as-paratenic-hosts-of-helminths
#19
Tony Silveira, Mariana H Remião, Ricardo B Robaldo, Kaio Freitas, Ana Luísa S Valente
The distribution of franciscana Pontoporia blainvillei Gervais & d'Orbigny, 1884, is restricted to the estuarine and coastal waters of the southwestern Atlantic. The diet of this dolphin is composed of fishes, squids, and shrimps, many of which harbor helminths that may infect franciscana. Larval forms of the trematode Synthesium pontoporiae and the acanthocephalan Bolbosoma turbinella have been recorded in franciscana; however, they have not yet been identified in any of the prey species of this cetacean. We evaluated 3 components of the diet of franciscana as possible transmission sources of parasitiasis...
March 21, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28321914/a-compact-0-5%C3%A2-t-mr-elastography-device-and-its-application-for-studying-viscoelasticity-changes-in-biological-tissues-during-progressive-formalin-fixation
#20
Jürgen Braun, Heiko Tzschätzsch, Clara Körting, Angela Ariza de Schellenberger, Marika Jenderka, Toni Drießle, Michael Ledwig, Ingolf Sack
PURPOSE: To develop a method of compact tabletop magnetic resonance elastography (MRE) for rheological tests of tissue samples and to measure changes in viscoelastic powerlaw constants of liver and brain tissue during progressive fixation. METHODS: A 10-mm bore, 0.5-T permanent-magnet-based MRI system was equipped with a gradient-amplifier-controlled piezo-actuator and motion-sensitive spin echo sequence for inducing and measuring harmonic shear vibrations in cylindrical samples...
March 20, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
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