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https://www.readbyqxmd.com/read/28820542/efficacy-and-complications-of-transcatheter-aortic-valve-implantation-with-and-without-balloon-aortic-valvuloplasty
#1
Kuljit Singh, Kristin Carson, Onn Akbar Ali, Rohan Jayasinghe, Alexander Dick, Christopher Glover, Marino Labinaz
BACKGROUND: Transcatheter aortic valve implantation (TAVI) is an effective treatment for severe aortic stenosis in high-risk patients. Several complications related to the TAVI procedure, including aortic regurgitation (AR), cerebrovascular accident (CVA) and the requirement for permanent pacemaker (PPM), are thought to be secondary to balloon aortic valvuloplasty (BAV) before TAVI. The aim of the present review was to evaluate any beneficial role of the direct TAVI approach over BAVTAVI...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28813984/a-passive-wrist-with-switchable-stiffness-for-a-body-powered-hydraulically-actuated-hand-prosthesis
#2
Federico Montagnani, Gerwin Smit, Marco Controzzi, Christian Cipriani, Dick H Plettenburg
State of art upper limb prostheses lack several degrees of freedom (DoF) and force the individuals to compensate for them by changing the motions of their arms and body. Such movements often yield to articulation injuries, nonetheless these could be prevented by adding DoFs, for instance, an articulated passive wrist. Available stiff or compliant wrists with passive flexion/extension and/or radial/ulnar deviation are sub-optimal solutions. Indeed, stiff wrists induce the individuals wearing them to perform exaggerated compensatory movements during the reaching phase while compliant wrists proved to be unpractical while manipulating heavy objects...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813886/exploratory-design-of-a-compliant-mechanism-for-a-dynamic-hand-orthosis-lessons-learned
#3
Ronald A Bos, Dick H Plettenburg, Just L Herder
This study does not describe a success-story. Instead, it describes an exploratory process and the lessons learned while designing a compliant mechanism for a dynamic hand orthosis. Tools from engineering optimization and rapid prototyping techniques were used, with the goal to design a mechanism to compensate for hypertonic or contracted finger muscles. Results show that the mechanism did not reach its design constraints, mostly because it could not provide for the necessary stiffness and compliance at the same time...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813562/polygenic-scores-for-major-depressive-disorder-and-risk-of-alcohol-dependence
#4
Allan M Andersen, Robert H Pietrzak, Henry R Kranzler, Li Ma, Hang Zhou, Xiaoming Liu, John Kramer, Samuel Kuperman, Howard J Edenberg, John I Nurnberger, John P Rice, Jay A Tischfield, Alison Goate, Tatiana M Foroud, Jacquelyn L Meyers, Bernice Porjesz, Danielle M Dick, Victor Hesselbrock, Eric Boerwinkle, Steven M Southwick, John H Krystal, Myrna M Weissman, Douglas F Levinson, James B Potash, Joel Gelernter, Shizhong Han
Importance: Major depressive disorder (MDD) and alcohol dependence (AD) are heritable disorders with significant public health burdens, and they are frequently comorbid. Common genetic factors that influence the co-occurrence of MDD and AD have been sought in family, twin, and adoption studies, and results to date have been promising but inconclusive. Objective: To examine whether AD and MDD overlap genetically, using a polygenic score approach. Design, Settings, and Participants: Association analyses were conducted between MDD polygenic risk score (PRS) and AD case-control status in European ancestry samples from 4 independent genome-wide association study (GWAS) data sets: the Collaborative Study on the Genetics of Alcoholism (COGA); the Study of Addiction, Genetics, and Environment (SAGE); the Yale-Penn genetic study of substance dependence; and the National Health and Resilience in Veterans Study (NHRVS)...
August 16, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28813412/the-primed-snare-complexin-synaptotagmin-complex-for-neuronal-exocytosis
#5
Qiangjun Zhou, Peng Zhou, Austin L Wang, Dick Wu, Minglei Zhao, Thomas C Südhof, Axel T Brunger
Synaptotagmin, complexin, and neuronal SNARE (soluble N-ethylmaleimide sensitive factor attachment protein receptor) proteins mediate evoked synchronous neurotransmitter release, but the molecular mechanisms mediating the cooperation between these molecules remain unclear. Here we determine crystal structures of the primed pre-fusion SNARE-complexin-synaptotagmin-1 complex. These structures reveal an unexpected tripartite interface between synaptotagmin-1 and both the SNARE complex and complexin. Simultaneously, a second synaptotagmin-1 molecule interacts with the other side of the SNARE complex via the previously identified primary interface...
August 16, 2017: Nature
https://www.readbyqxmd.com/read/28811257/auditory-conflict-and-congruence-in-frontotemporal-dementia
#6
Camilla N Clark, Jennifer M Nicholas, Jennifer L Agustus, Christopher J D Hardy, Lucy L Russell, Emilie V Brotherhood, Katrina M Dick, Charles R Marshall, Catherine J Mummery, Jonathan D Rohrer, Jason D Warren
Impaired analysis of signal conflict and congruence may contribute to diverse socio-emotional symptoms in frontotemporal dementias, however the underlying mechanisms have not been defined. Here we addressed this issue in patients with behavioural variant frontotemporal dementia (bvFTD; n=19) and semantic dementia (SD; n=10) relative to healthy older individuals (n=20). We created auditory scenes in which semantic and emotional congruity of constituent sounds were independently probed; associated tasks controlled for auditory perceptual similarity, scene parsing and semantic competence...
August 12, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28810931/a-comprehensive-regional-clinical-and-educational-ecpr-protocol-decreases-time-to-ecmo-in-patients-with-refractory-out-of-hospital-cardiac-arrest
#7
Brian Grunau, Sarah Carrier, Jamil Bashir, William Dick, Luke Harris, Robert Boone, Dan Kalla, Frank Scheuermeyer, Brian Twaites, Ron Straight, James Abel, Ken McDonald, Ruth MacRedmond, David Agulnik, Joe Finkler, Jeanne MacLeod, Jim Christenson, Anson Cheung
OBJECTIVE: Extracorporeal membrane oxygenation within CPR (ECPR) may improve survival for refractory out-of-hospital cardiac arrest (OHCA). We developed a prehospital, emergency department (ED), and hospital-based clinical and educational protocol to improve the key variable of time-to-ECPR (TTE). METHODS: In a single urban health region we involved key prehospital, clinical, and administrative stakeholders over a 2-year period, to develop a regional ECPR program with destination to a single urban tertiary care hospital...
August 16, 2017: CJEM
https://www.readbyqxmd.com/read/28808730/-spontaneous-reposition-of-a%C3%A2-hip-prosthesis-after-atraumatic-dislocation
#8
M S Ostapczuk, T Ritte, M Dicks, M Jonas
Traumatic dislocations of a hip prosthesis are not uncommon, and spontaneous repositions are well documented as well. To the best of our knowledge, however, there has been no report of a spontaneous reposition of a dislocated hip prosthesis head on the stem taper. We present such a rare case.
August 14, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28807370/descriptive-analysis-of-factors-associated-with-external-cervical-resorption
#9
Athina M Mavridou, Lars Bergmans, Dick Barendregt, Paul Lambrechts
INTRODUCTION: The aim of this study was to perform a descriptive analysis of the occurrence of external cervical resorption (ECR) in relation to the patients' characteristics (sex, age, and tooth type) and the potentially involved predisposing factors. METHODS: This study includes data on 284 patients (337 teeth with evidence of ECR) referred to the University Hospital Leuven (Leuven, Belgium) and Endo Rotterdam (Rotterdam, the Netherlands) for diagnosis and treatment from 2010 to 2015...
August 11, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28805240/the-role-of-social-familial-and-individual-level-factors-on-multiple-alcohol-use-outcomes-during-the-first-year-of-university
#10
Megan E Cooke, Zoe E Neale, Peter B Barr, John Myers, Danielle M Dick, Kenneth S Kendler, Alexis C Edwards
BACKGROUND: The first year of university attendance represents a critical time frame for the development of alcohol use and misuse given changes in autonomy and increased access to alcohol. Prior studies have demonstrated that the establishment of drinking patterns during this period is impacted by an array of demographic, environmental, and familial factors. It is critical to consider such factors jointly, and to understand potentially differential effects on stages of alcohol use/misuse, in order to identify robust predictors that may be targeted in prevention and intervention programming...
August 14, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28804966/associations-of-parental-alcohol-use-disorders-and-parental-separation-with-offspring-initiation-of-alcohol-cigarette-and-cannabis-use-and-sexual-debut-in-high-risk-families
#11
Vivia V McCutcheon, Arpana Agrawal, Sally I-Chun Kuo, Jinni Su, Danielle M Dick, Jacquelyn L Meyers, Howard J Edenberg, John I Nurnberger, John R Kramer, Samuel Kuperman, Marc A Schuckit, Victor M Hesselbrock, Andrew Brooks, Bernice Porjesz, Kathleen K Bucholz
BACKGROUND AND AIMS: Parental alcohol use disorders (AUDs) and parental separation are associated with increased risk for early use of alcohol in offspring, but whether they increase risks for early use of other substances and for early sexual debut is under-studied. We focused on associations of parental AUDs and parental separation with substance initiation and sexual debut to (1) test the strength of the associations of parental AUDs and parental separation with time to initiation (age in years) of alcohol, tobacco, and cannabis use, and sexual debut, and (2) compare the strength of association of parental AUD and parental separation with initiation...
August 13, 2017: Addiction
https://www.readbyqxmd.com/read/28802878/prehospital-sodium-bicarbonate-use-could-worsen-long-term-survival-with-favorable-neurological-recovery-among-patients-with-out-of-hospital-cardiac-arrest
#12
Takahisa Kawano, Brian Grunau, Frank X Scheuermeyer, Koichiro Gibo, William Dick, Christopher B Fordyce, Paul Dorian, Robert Stenstrom, Ronald Straight, Jim Christenson
BACKGROUND: Sodium bicarbonate (SB) is widely used for resuscitation in out-of- hospital cardiac arrest (OHCA); however, its effect on long term outcomes is unclear. METHODS: From 2005 to 2016, we prospectively conducted a province-wide population-based observational study including adult non-traumatic OHCA patients managed by paramedics. SB was administered by paramedics based on their clinical assessments. To examine the association of SB administration and survival and favorable neurological outcome to hospital discharge, defined as modified Rankin scale of 3 or less, we performed a multivariable logistic regression analysis: (1) within propensity score matched comparison groups, and; (2) within the full cohort with missing variables addressed by multiple imputation techniques...
August 9, 2017: Resuscitation
https://www.readbyqxmd.com/read/28800635/design-of-a-cosmetic-glove-stiffness-compensation-mechanism-for-toddler-sized-hand-prostheses
#13
Ronald A Bos, Dick H Plettenburg
The addition of a cosmetic glove to an upper limb prosthesis has a distinct effect on the cosmetic value, but its viscoelastic behaviour adds a substantial amount of stiffness and hysteresis to the system. As a result, the overall usability of the prosthesis is degraded. A novel negative stiffness element is designed to compensate for the cosmetic glove's stiffness. A combination of linear helical springs and the concept of rolling link mechanisms has resulted in a Rolling Stiffness Compensation Mechanism (RSCM)...
2017: PloS One
https://www.readbyqxmd.com/read/28800629/protective-effects-on-the-retina-after-ranibizumab-treatment-in-an-ischemia-model
#14
Stephanie C Joachim, Marina Renner, Jacqueline Reinhard, Carsten Theiss, Caroline May, Stephanie Lohmann, Sabrina Reinehr, Gesa Stute, Andreas Faissner, Katrin Marcus, H Burkhard Dick
Retinal ischemia is common in eye disorders, like diabetic retinopathy or retinal vascular occlusion. The goal of this study was to evaluate the potential protective effects of an intravitreally injected vascular endothelial growth factor (VEGF) inhibitor (ranibizumab) on retinal cells in an ischemia animal model via immunohistochemistry (IF) and quantitative real-time PCR (PCR). A positive binding of ranibizumab to rat VEGF-A was confirmed via dot blot. One eye underwent ischemia and a subgroup received ranibizumab...
2017: PloS One
https://www.readbyqxmd.com/read/28800425/implementing-the-adapted-physical-education-e-learning-program-into-physical-education-teacher-education-program
#15
Eun Hye Kwon, Martin E Block
According to the Ministry of Education Korea (2014), the approximately 70.4% of all students with disabilities are included in general schools in Korea. However, studies show that Korean GPE teachers do not feel comforatble or prepared to include students with disabilities (Oh & Lee, 1999; Roh, 2002; Roh & Oh, 2005). The purpose of this study was to explore whether an APE e-learning supplement would have an impact on the level of self-efficacy and content knowledge of pre-service teachers related to including students with intellectual disabilities...
August 8, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28798178/draft-genome-sequence-of-mycobacterium-avium-11
#16
Michelle Yee, David Klinzing, Jun-Rong Wei, Martin Gengenbacher, Eric J Rubin, Jung-Yien Chien, Po-Ren Hsueh, Thomas Dick
Mycobacterium avium accounts for most lung disease caused by nontuberculous mycobacteria (NTM). The lack of effective chemotherapy calls for the discovery of new drugs. Here, we report the draft genome sequence of M. avium 11, a clinical isolate used as a screening strain for NTM-focused drug discovery.
August 10, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28797748/renal-trials-in-diabetes-need-a-platform-time-for-a-global-approach
#17
Dick de Zeeuw, Hiddo J L Heerspink, Meg Jardine, Vlado Perkovic
No abstract text is available yet for this article.
August 7, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/28794182/membrane-filtration-is-suitable-to-reliably-eliminate-mycobacterium-tuberculosis-from-saliva-for-therapeutic-drug-monitoring
#18
Simone H J van den Elsen, Tridia van der Laan, Onno W Akkerman, Adri G M van der Zanden, Jan-Willem C Alffenaar, Dick van Soolingen
Tuberculosis (TB) remains an infectious disease of a worldwide concern.….
August 9, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28793901/mobility-assessment-of-a-rural-population-in-the-netherlands-using-gps-measurements
#19
Gijs Klous, Lidwien A M Smit, Floor Borlée, Roel A Coutinho, Mirjam E E Kretzschmar, Dick J J Heederik, Anke Huss
BACKGROUND: The home address is a common spatial proxy for exposure assessment in epidemiological studies but mobility may introduce exposure misclassification. Mobility can be assessed using self-reports or objectively measured using GPS logging but self-reports may not assess the same information as measured mobility. We aimed to assess mobility patterns of a rural population in the Netherlands using GPS measurements and self-reports and to compare GPS measured to self-reported data, and to evaluate correlates of differences in mobility patterns...
August 9, 2017: International Journal of Health Geographics
https://www.readbyqxmd.com/read/28780497/neonatal-management-and-outcome-after-thoracoamniotic-shunt-placement-for-fetal-hydrothorax
#20
Ruben S G M Witlox, Frans J C M Klumper, Arjan B Te Pas, Erik W van Zwet, Dick Oepkes, Enrico Lopriore
AIM: To evaluate the short-term neonatal outcome after fetal thoracoamniotic shunt placement for isolated hydrothorax. METHODS: Retrospective evaluation of infants with isolated hydrothorax treated with thoracoamniotic shunt placement at our fetal therapy centre between 2001 and 2016. RESULTS: In total 48 fetuses were treated with a thoracoamniotic shunt. All fetuses had signs of hydrops at the time of intervention. Median (IQR) gestational age at shunting was 28...
August 5, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
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