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https://www.readbyqxmd.com/read/29166718/-value-of-two-left-atrium-and-pulmonary-vein-stereoscopic-imaging-reconstruction-methods-on-guiding-radiofrequency-ablation-for-atrial-fibrillation
#1
Y Tian, S Zhou, Y H Yin, Y X Zheng, R P Wang, X Q Liu, Z Q Liu, Q F Liu, W Liu, J Pang, Z Jiang, L H Tian, J Huang, L Yang
Objective: To compare the value of two 3D imaging reconstruction methods for left atria and pulmonary vein on guiding the catheter ablation for atrial fibrillation (AF). Methods: From January 2014 to January 2017, a total of 100 drug refractory paroxysmal AF patients were divided into left atria direct angiography group (n=50), and indirect angiography group (n=50). 3D CARTO system was applied for mapping and guiding the ablation procedure. Patients assigned to direct angiography group were treated as follows: intraoperative puncture of atrial septum, inject contrast agent directly into the left atrium, conduct left atrial and pulmonary venous rotation angiography, reconstruct three-dimensional image, integrate the image into real-time X-ray system to facilitate circumferential pulmonary vein isolation...
November 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29166700/dlp1-dependent-mitochondrial-fragmentation-and-redistribution-mediate-prion-associated-mitochondrial-dysfunction-and-neuronal-death
#2
Chaosi Li, Di Wang, Wei Wu, Wei Yang, Syed Zahid Ali Shah, Ying Zhao, Yuhan Duan, Lu Wang, Xiangmei Zhou, Deming Zhao, Lifeng Yang
Mitochondrial malfunction is a universal and critical step in the pathogenesis of many neurodegenerative diseases including prion diseases. Dynamin-like protein 1 (DLP1) is one of the key regulators of mitochondrial fission. In this study, we investigated the role of DLP1 in mitochondrial fragmentation and dysfunction in neurons using in vitro and in vivo prion disease models. Mitochondria became fragmented and redistributed from axons to soma, correlated with increased mitochondrial DLP1 expression in murine primary neurons (N2a cells) treated with the prion peptide PrP(106-126) in vitro as well as in prion strain-infected hamster brain in vivo...
November 22, 2017: Aging Cell
https://www.readbyqxmd.com/read/29166687/-how-probable-is-it-that-seniors-using-an-e-bike-will-have-an-accident-a-new-health-care-topic-also-for-consulting-doctors
#3
Raphael Weiss, Christian Juhra, Britta Wieskötter, Udo Weiss, Susanne Jung, Michael Raschke
Background In Germany there are more than 70 million bicycles. Because of technical progress, over 200,000 electro-assisted bikes were sold in Germany in 2010 alone. In 2013, the number increased to 410,000. Currently more than 1.6 million electric bicycles are used here. One of the largest user groups are seniors. Accident researchers fear an increased risk of accidents/injuries. Methods For one year, all cycling accidents involving electric bicycles and senior citizens were collected and analysed in 23 hospitals of the TraumaNetwork NorthWest and by the local police authorities...
November 22, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29166606/sumoylation-promotes-nuclear-import-and-stabilization-of-polo-like-kinase-1-to-support-its-mitotic-function
#4
Donghua Wen, Jianguo Wu, Lei Wang, Zheng Fu
As a pivotal mitotic regulator, polo-like kinase 1 (PLK1) is under highly coordinated and multi-layered regulation. However, the pathways that control PLK1's activity and function have just begun to be elucidated. PLK1 has recently been shown to be functionally modulated by post-translational modifications (PTMs), including phosphorylation and ubiquitination. Herein, we report that SUMOylation plays an essential role in regulating PLK1's mitotic function. We found that Ubc9 was recruited to PLK1 upon initial phosphorylation and activation by CDK1/cyclin B...
November 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/29166562/a-lc-hrms-data-processing-strategy-for-reliable-sample-comparison-exemplified-by-the-assessment-of-water-treatment-processes
#5
Tobias Johannes Bader, Wolfgang Schulz, Klaus Kümmerer, Rudi Winzenbacher
The behavior of micropollutants in water treatment is an important aspect in terms of water quality. Non-target screening by liquid chromatography coupled to high-resolution mass spectrometry (LC-HRMS) offers the opportunity to comprehensively assess water treatment processes by comparing the signal heights of all detectable compounds before and after treatment. Without preselection of known target compounds, all accessible information is used to describe changes across processes and thus serves as a measure for the treatment efficiency...
November 22, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29166403/integration-of-molecular-typing-results-into-tuberculosis-surveillance-in-germany-a-pilot-study
#6
Marta Andrés, Elke Göhring-Zwacka, Lena Fiebig, Martin Priwitzer, Elvira Richter, Sabine Rüsch-Gerdes, Walter Haas, Stefan Niemann, Bonita Brodhun
An integrated molecular surveillance for tuberculosis (TB) improves the understanding of ongoing TB transmission by combining molecular typing and epidemiological data. However, the implementation of an integrated molecular surveillance for TB is complex and requires thoughtful consideration of feasibility, demand, public health benefits and legal issues. We aimed to pilot the integration of molecular typing results between 2008 and 2010 in the German Federal State of Baden-Württemberg (population 10.88 Million) as preparation for a nationwide implementation...
2017: PloS One
https://www.readbyqxmd.com/read/29166402/early-pleistocene-archaeological-occurrences-at-the-feiliang-site-and-the-archaeology-of-human-origins-in-the-nihewan-basin-north-china
#7
Shuwen Pei, Fei Xie, Chenglong Deng, Zhenxiu Jia, Xiaomin Wang, Ying Guan, Xiaoli Li, Dongdong Ma, Ignacio de la Torre
The Early Pleistocene archaeological evidence from the fluvio-lacustrine sequence of the Nihewan Basin (North China) offers an excellent opportunity to explore early human evolution and behavior in a temperate setting in East Asia, following the earliest 'Out of Africa'. Here we present the first comprehensive study of the Feiliang (FL) site, with emphasis on the archaeological sequence, site integrity, and stone artifact assemblages. Magnetostratigraphic dating results show that early humans occupied the site ca...
2017: PloS One
https://www.readbyqxmd.com/read/29166386/you-prime-what-you-code-the-faim-model-of-priming-of-pop-out
#8
Wouter Kruijne, Martijn Meeter
Our visual brain makes use of recent experience to interact with the visual world, and efficiently select relevant information. This is exemplified by speeded search when target- and distractor features repeat across trials versus when they switch, a phenomenon referred to as intertrial priming. Here, we present fAIM, a computational model that demonstrates how priming can be explained by a simple feature-weighting mechanism integrated into an established model of bottom-up vision. In fAIM, such modulations in feature gains are widespread and not just restricted to one or a few features...
2017: PloS One
https://www.readbyqxmd.com/read/29166354/smoothing-the-transition-points-in-canadian-medical-education
#9
Nick Busing, Jay Rosenfield, Kamal Rungta, Matt Raegele, Andrew Warren, Bruce Wright, Mark Walton, Ivy Oandasan, Anthony Sanfilippo, Anurag Saxena
In 2010 the Association of Faculties of Medicine of Canada, Collège des médecins du Québec, College of Family Physicians of Canada, and the Royal College of Physicians and Surgeons of Canada launched The Future of Medical Education in Canada Postgraduate (FMEC PG) Project to examine postgraduate medical education (PGME) in Canada and make recommendations for improvement. One recommendation that emerged concerns the transitions learners experience across the undergraduate medical education-PGME-practice continuum...
November 21, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/29166311/the-use-and-delivery-of-stem-cells-in-nerve-regeneration-preclinical-evidence-and-regulatory-considerations
#10
Abdel Armaiz Flores, Huan Wang
Outcomes following peripheral nerve injury remain poor despite the regenerative capacity displayed by the peripheral nervous system. Current therapies are limited and do not provide satisfactory functional recovery in a multitude of cases. Biomaterials have decreased the need for nerve autograft across small nerve gaps in small-caliber nerves, but the lack of a cellular substrate presents a limiting factor to the effectiveness of this therapy. Schwann cells are the supportive cells in the peripheral nervous system and play an integral role in the physiological response and regeneration following nerve injury...
November 21, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29166258/application-of-a-skin-adhesive-to-maintain-seal-in-negative-pressure-wound-therapy-demonstration-of-a-new-technique
#11
Murad Karadsheh, Josh Nelson, Benjamin Rechner, Richard Wilcox
Optimal wound healing with negative pressure wound therapy (NPWT) relies on a properly sealed vacuum system. Anatomically difficult wounds impair the adhesive dressing, which results in air leaks that disrupt the integrity of the NPWT system and hinder wound healing. OBJECTIVE: The authors demonstrate a new technique using a cyanoacrylate-based tissue adhesive to maintain an airtight, durable seal in NPWT. MATERIALS AND METHODS: A 52-year-old woman with a degloving injury to the right thigh extending into the groin, resulting in massive necrosis, presented to the emergency department...
November 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/29166256/infection-free-clinical-response-among-patients-with-hidradenitis-suppurativa-who-were-treated-with-adalimumab-results-from-two-phase-3-studies
#12
Evangelos J Giamarellos-Bourboulis, Jeffrey Sobell, Caitriona Ryan, Pierre J Wolkenstein, Ziqian Geng, Gerit D Mulder
OBJECTIVE: The objective of this study is to assess the rates of infection-free achievement of hidradenitis suppurativa clinical response (HiSCR) using integrated data from 2 phase 3, placebo-controlled trials, PIONEER I and II. MATERIALS AND METHODS: Analyses from the first 12 weeks of both studies were examined. Patients were randomized to receive adalimumab (ADA) or placebo, and they then were assessed in the clinic at weeks 0, 2, 4, 8, and 12. All reports of an adverse or serious adverse event and infection were classified as treatment-emergent adverse events (TEAEs)...
November 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/29166247/does-sodium-knowledge-affect-dietary-choices-and-health-behaviors-results-from-a-survey-of-los-angeles-county-residents
#13
George Dewey, Ranjana N Wickramasekaran, Tony Kuo, Brenda Robles
INTRODUCTION: In 2010, the Los Angeles County Department of Public Health launched a local sodium-reduction initiative to address the rising prevalence of high blood pressure (hypertension) and related cardiovascular conditions in the population. To inform this effort, we evaluated self-reported knowledge and health behaviors related to sodium intake among Los Angeles County residents. METHODS: We administered 3 cross-sectional Internet panel surveys on knowledge about dietary sodium to a sample of Los Angeles County adults, at intervals from December 2014 through August 2016...
November 22, 2017: Preventing Chronic Disease
https://www.readbyqxmd.com/read/29166242/dynamism-of-an-astrocyte-in-vivo-perspectives-on-identity-and-function
#14
Kira E Poskanzer, Anna V Molofsky
Astrocytes are an abundant and evolutionarily conserved central nervous system cell type. Despite decades of evidence that astrocytes are integral to neural circuit function, it seems as though astrocytic and neuronal biology continue to advance in parallel to each other, to the detriment of both. Recent advances in molecular biology and optical imaging are being applied to astrocytes in new and exciting ways but without fully considering their unique biology. From this perspective, we explore the reasons that astrocytes remain enigmatic, arguing that their responses to neuronal and environmental cues shape form and function in dynamic ways...
November 20, 2017: Annual Review of Physiology
https://www.readbyqxmd.com/read/29166224/a-reanalysis-of-occupation-and-suicide-negative-perceptions-of-the-workplace-linked-to-suicide-attempts
#15
Matt Howard, Morgan Krannitz
Suicide is the ultimate outcome of poor psychological well-being; however, there is a paucity of research examining the link between occupation and suicide, despite early academic interest and the known importance of work to our everyday lives. We propose that this body of research was abandoned prematurely, and we provide a reanalysis by integrating the Job Characteristics Model and the Conservation of Resources model with extant suicide research. Specifically, we hypothesize that work design characteristics (job autonomy, task variety, physical demands) and threats to personal resources (absence of viewing work-as-career, work-family conflict, family-work conflict, job dissatisfaction) are linked to suicide attempts via depression and suicidal ideation...
November 17, 2017: Journal of Psychology
https://www.readbyqxmd.com/read/29166164/a-physiological-signature-of-the-cost-of-reproduction-associated-with-parental-care
#16
Melinda A Fowler, Tony D Williams
Costs of reproduction are an integral and long-standing component of life-history theory, but we still know relatively little about the specific physiological mechanisms underlying these trade-offs. We experimentally manipulated workload during parental care in female European starlings (Sturnus vulgaris) using attachment of radios and/or wing clipping and assessed measures of workload, current breeding productivity, future fecundity, and survival (local return rate) in relation to treatment. Females with wing clipping and radio attachment paid a clear cost of reproduction compared with all other treatment groups: they had lower future fecundity and lower return rates despite having lower current breeding productivity...
December 2017: American Naturalist
https://www.readbyqxmd.com/read/29166155/drivers-of-diversification-in-individual-life-courses
#17
Raisa Hernández-Pacheco, Ulrich K Steiner
Heterogeneity in life courses among individuals of a population influences the speed of adaptive evolutionary processes, but it is less clear how biotic and abiotic environmental fluctuations influence such heterogeneity. We investigate principal drivers of variability in sequence of stages during an individual's life in a stage-structured population. We quantify heterogeneity by measuring population entropy of a Markov chain, which computes the rate of diversification of individual life courses. Using individual data of a primate population, we show that density regulates the stage composition of the population but that its entropy and the generating moments of heterogeneity are independent of density...
December 2017: American Naturalist
https://www.readbyqxmd.com/read/29166151/biomarkers-and-imaging-of-breast-cancer
#18
Olena Weaver, Jessica W T Leung
OBJECTIVE: The goals of this review are to provide background information on the definitions and applications of the general term "biomarker" and to highlight the specific roles of breast imaging biomarkers in research and clinical breast cancer care. A search was conducted of the main electronic biomedical databases (PubMed, Cochrane, Embase, MEDLINE [Ovid], Scopus, and Web of Science). The search was focused on review literature in general radiology and biomedical sciences and on reviews and primary research articles on biomarkers in breast imaging over the 15 years ending in June 2017...
November 22, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29166149/journal-club-redefining-the-radiology-curriculum-in-medical-school-vertical-integration-and-global-accessibility
#19
Michele Retrouvey, Anthony Paul Trace, Craig W Goodmurphy, Sarah Shaves
OBJECTIVE: Radiology interconnects medical disciplines given that a working understanding of imaging is essential to clinicians of every specialty. Using online education, we created a globally accessible, web-based undergraduate medical radiology curriculum modeled after the National Medical Student Curriculum in Radiology program of the Alliance of Medical Student Educators in Radiology. SUBJECTS AND METHODS: Seventy-four radiology faculty-mentored video modules were produced, 50 of which were integrated into the 1st-year anatomy course...
November 22, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29166042/laplace-transformed-multi-reference-second-order-perturbation-theories-in-the-atomic-and-active-molecular-orbital-basis
#20
Benjamin Helmich-Paris, Stefan Knecht
In the present article, we show how to formulate the partially contracted n-electron valence second-order perturbation theory (NEVPT2) energies in the atomic and active molecular orbital basis by employing the Laplace transformation of orbital-energy denominators (OEDs). As atomic-orbital (AO) basis functions are inherently localized and the number of active orbitals is comparatively small, our formulation is particularly suited for a linearly scaling NEVPT2 implementation. In our formulation, there are two kinds of NEVPT2 energy contributions, which differ in the number of active orbitals in the two-electron integrals involved...
June 14, 2017: Journal of Chemical Physics
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