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https://www.readbyqxmd.com/read/29779297/cardiac-rhythm-management-devices
#1
Irene Stevenson, Alex Voskoboinik
BACKGROUND: The last decade has seen ongoing evolution and use of cardiac rhythm management devices, including pacemakers, cardiac resynchronisation therapy, implantable cardioverter defibrillators and loop recorders. General practitioners are increasingly involved in follow-up and management of patients with these devices. OBJECTIVE: The aim of this article is to provide an overview of different cardiac rhythm management devices, including their role, implant procedure, post-procedural care, potential complications and follow‑up...
May 2018: Australian journal of general practice
https://www.readbyqxmd.com/read/29779206/old-new-and-emerging-immunohistochemical-markers-in-pheochromocytoma-and-paraganglioma
#2
REVIEW
Veronica K Y Cheung, Anthony J Gill, Angela Chou
The evolution of genetic research over the past two decades has greatly improved the understanding of pheochromocytomas and paragangliomas. It is now accepted that more than one third of pheochromocytoma and paragangliomas arise in the context of syndromic disease, usually hereditary. The genetic profile of these tumors also has important prognostic implications which may help guide treatment. Accompanying the changing molecular landscape is the development of new immunohistochemical markers. Initially used in assisting with diagnosis, immunohistochemical markers have now become an important adjunct to screening programs for inherited conditions and subsequently as prognostic markers...
May 19, 2018: Endocrine Pathology
https://www.readbyqxmd.com/read/29779091/two-years-of-maintenance-hemodialysis-has-a-pronounced-effect-on-arterial-stiffness-progression
#3
Agne Laucyte-Cibulskiene, Laurynas Rimsevicius, Liutauras Gumbys, Dileta Valanciene, Marius Miglinas
BACKGROUND: The change of aortic stiffness, but not the particular baseline value, plays a crucial role in estimating the patient risk with end-stage renal disease. Therefore, we aimed to analyze the evolution of central and peripheral arterial stiffness in hemodialysis population without previous cardiovascular events during a 2-year follow-up. METHODS: 60 hemodialysis patients (mean age 57.61 ± 13.01 years) were prospectively interviewed, and they underwent blood tests, chest X-ray for aortic calcification evaluation and pulse wave velocity (PWV) measurements at the baseline, after 6 months and after 2 years of observation period...
May 19, 2018: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/29778896/formation-and-transformation-of-calcium-phosphate-phases-under-biologically-relevant-conditions-experiments-and-modelling
#4
Agnese Carino, Christian Ludwig, Antonio Cervellino, Elisabeth Müller, Andrea Testino
The experimental data on calcium phosphates formation were collected in dilute solution at constant pH (7.40) and temperature (37.0 °C) at different levels of ionic strength (IS). The evolution of the solid phase formation is described in detail using a thermodynamic-kinetic model. The thermodynamic model takes into account all relevant chemical species as well as Posner's clusters; the kinetic model, based on the discretized population balance approach, accounts for the solid formation from solution. The experimental data are consistent with an initial formation of dicalcium phosphate dihydrate (DCPD, brushite), which dominates the nucleation rate, and its rapid transformation into octacalcium phosphate (OCP) or hydroxyapatite (HA), which dominates the growth rate...
May 17, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29778877/an-insight-into-the-multi-scale-structures-and-pasting-behaviors-of-starch-following-citric-acid-treatment
#5
Yinqiang Huo, Binjia Zhang, Meng Niu, Caihua Jia, Siming Zhao, Qilin Huang, Hongying Du
Using combined analytical techniques, this work discloses how citric acid (CA) treatment affects the pasting features of starch from a view of multi-scale structural evolutions. The treatment induced disruption events in starch multi-level structures and thus modulated the pasting behaviors. A structure-property relationship was proposed to rationalize CA effects on starch pasting properties. Specifically, CA disrupted starch structures from molecular scale to micron scale, eventually reducing pasting temperature and paste viscosities...
May 17, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29778791/evolutionary-transitions-in-controls-reconcile-adaptation-with-continuity-of-evolution
#6
REVIEW
Alexander V Badyaev
Evolution proceeds by accumulating functional solutions, necessarily forming an uninterrupted lineage from past solutions of ancestors to the current design of extant forms. At the population level, this process requires an organismal architecture in which the maintenance of local adaptation does not preclude the ability to innovate in the same traits and their continuous evolution. Representing complex traits as networks enables us to visualize a fundamental principle that resolves tension between adaptation and continuous evolution: phenotypic states encompassing adaptations traverse the continuous multi-layered landscape of past physical, developmental and functional associations among traits...
May 17, 2018: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29778766/first-genetic-characterization-of-usutu-virus-from-culex-pipiens-mosquitoes-serbia-2014
#7
Gábor Kemenesi, Dóra Buzás, Brigitta Zana, Kornélia Kurucz, Bosiljka Krtinic, Anett Kepner, Fanni Földes, Ferenc Jakab
Since its first appearance in Europe, Usutu virus (USUV) diverged to several different genetic lineages. The virus was reported to date from multiple countries across Europe (Hungary, Italy, Switzerland, Spain, Germany, Czech Republic and Belgium). Considering the more frequently published impact of the virus on humans it is crucial to investigate locally circulating genetic variants and trace its evolution. We retrospectively analyzed mosquito samples from Serbia Vojvodina region, collected during 2014. In this study we report the results of the screening of 23,753 female mosquitoes (753 pools) for USUV-specific nucleic-acid...
May 17, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29778724/a-tangle-of-forms-and-phylogeny-extensive-morphological-homoplasy-and-molecular-clock-heterogeneity-in-bonnetina-and-related-tarantulas
#8
David Ortiz, Oscar F Francke, Jason E Bond
Tarantula spider systematics has long been considered problematic. Species diagnosis and phylogenetic hypotheses have historically relied on morphological features, which are known to be relatively conserved and/or highly homoplastic across the family. Morphology-based attempts to clarify the phylogeny of the highly diverse New World Theraphosinae, have only been moderately successful, and the time-frame of tarantulas' evolution is nearly terra incognita. Here we present a molecular phylogenetic analysis of the Theraphosinae genus Bonnetina and related lineages, employing one mitochondrial (COI) and five nuclear (ITS1, EF1G, MID1IP1, MRPL44, and I3568) loci...
May 17, 2018: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29778722/phylogenomics-resolves-evolutionary-relationships-and-provides-insights-into-floral-evolution-in-the-tribe-shoreeae-dipterocarpaceae
#9
Jacqueline Heckenhauer, Rosabelle Samuel, Peter S Ashton, Kamariah Abu Salim, Ovidiu Paun
A supra-annual, community-level synchronous flowering prevails in several parts of the tropical forests of Southeast Asia and its evolution has been hypothesized to be linked to pollinator shifts. The aseasonal Southeast Asian lowland rainforests are dominated by Dipterocarpaceae, which exhibit great floral diversity, a range of pollination syndromes and include species with annual and supra-annual gregarious flowering. Phylogenetic relationships within this family are still unclear, especially in the tribe Shoreeae...
May 17, 2018: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29778640/work-factors-associated-with-return-to-work-in-out-of-hospital-cardiac-arrest-survivors
#10
Alexis Descatha, Florence Dumas, Wulfran Bougouin, Alain Cariou, Guillaume Geri
INTRODUCTION: Although the survival rate after out-of-hospital cardiac arrest (OHCA) has increased over time, little is known about the return to work of OHCA survivors. We aim to evaluate prevalence and factors associated with return to work (RTW) in OHCA survivors. PATIENTS AND METHODS: All consecutive OHCA survivors aged 18-65 years and discharged alive from a Paris tertiary intensive care unit between 2000 and 2013 were included. Pre-hospital care, in-hospital care, and after-hospital discharge data, such as work description (work location, job classification, nature of the job) were compared relative to work status and RTW...
May 17, 2018: Resuscitation
https://www.readbyqxmd.com/read/29778634/genetic-characterization-of-anaplasma-marginale-strains-from-tunisia-using-single-and-multiple-gene-typing-reveals-novel-variants-with-an-extensive-genetic-diversity
#11
Mourad Ben Said, Alaa Ben Asker, Hanène Belkahia, Raoua Ghribi, Rachid Selmi, Lilia Messadi
Anaplasma marginale, which is responsible for bovine anaplasmosis in tropical and subtropical regions, is a tick-borne obligatory intraerythrocytic bacterium of cattle and wild ruminants. In Tunisia, information about the genetic diversity and the phylogeny of A. marginale strains are limited to the msp4 gene analysis. The purpose of this study is to investigate A. marginale isolates infecting 16 cattle located in different bioclimatic areas of northern Tunisia with single gene analysis and multilocus sequence typing methods on the basis of seven partial genes (dnaA, ftsZ, groEL, lipA, secY, recA and sucB)...
May 12, 2018: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29778510/assessment-of-intestinal-failure-associated-liver-disease-according-to-different-diagnostic-criteria
#12
Anna Simona Sasdelli, Federica Agostini, Caterina Pazzeschi, Mariacristina Guidetti, Simon Lal, Loris Pironi
BACKGROUND & AIMS: Intestinal failure associated liver disease (IFALD) has been defined using numerous criteria; however the clinical relevance of these criteria has never been compared. We therefore aimed to evaluate the prevalence, incidence, evolution of IFALD diagnosed by different criteria and to assess any clinical features that may be associated with its occurrence. METHODS: A cross sectional (CS) and retrospective study were carried out on adults on home parenteral nutrition (HPN) for chronic intestinal failure (CIF) managed at a single center...
May 8, 2018: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29778432/the-effect-of-exposure-to-sub-inhibitory-concentrations-of-hypochlorite-and-quaternary-ammonium-compounds-on-antimicrobial-susceptibility-of-pseudomonas-aeruginosa
#13
Aya Mahmoud Nasr, Marwa Salah Mostafa, Heba Hamed Arnaout, Amal Ali Ali Elshimy
BACKGROUND: Pseudomonas is a group of medically important species that inhabit a wide range of niches, including hospital environments. Controversies have emerged about the possible link between improper use of disinfectants and the emergence of antibiotic resistance in bacteria. The aim of this study was to assess the effect of exposure of antibiotic-susceptible Pseudomonas isolates to sub-inhibitory concentrations of 2 disinfectants-didecyldimonium chloride and sodium hypochlorite-on their antibiotic susceptibility patterns...
May 16, 2018: American Journal of Infection Control
https://www.readbyqxmd.com/read/29778329/the-kinetoplast-dna-of-the-australian-trypanosome-trypanosoma-copemani-shares-features-with-trypanosoma-cruzi-and-trypanosoma-lewisi
#14
Adriana Botero, Irit Kapeller, Crystal Cooper, Peta L Clode, Joseph Shlomai, R C Andrew Thompson
Kinetoplast DNA (kDNA) is the mitochondrial genome of trypanosomatids. It consists of a few dozen maxicircles and several thousand minicircles, all catenated topologically to form a two-dimensional DNA network. Minicircles are heterogeneous in size and sequence among species. They present one or several conserved regions that contain three highly conserved sequence blocks (CSBs). CSB-1 (10 bp sequence) and CSB-2 (8 bp sequence) present lower interspecies homology, while CSB-3 (12 bp sequence) or the Universal Minicircle Sequence (UMS) is conserved within most trypanosomatids...
May 17, 2018: International Journal for Parasitology
https://www.readbyqxmd.com/read/29778306/proton-pump-inhibitors-prescriptions-in-france-main-trends-from-2006-to-2016-on-french-health-insurance-database
#15
Quentin Boucherie, Franck Rouby, Diane Frankel, Patrice Roll, Joelle Micallef
Because national data on proton pump inbibitors (PPIs) consumption in France are scarce and because there is a growing literature on potential adverse drug reaction induced by this pharmacological class, we would like to more describe the main evolution of PPI use and the main characteristics of its users in France. We used a 1/97th representative sample of beneficiaries of the French health insurance called "échantillon généraliste des bénéficiaires" (EGB) to describe PPIs' use over time (duration of use by year) from 2006 to 2016...
March 7, 2018: Thérapie
https://www.readbyqxmd.com/read/29778246/re-dating-zhoukoudian-upper-cave-northern-china-and-its-regional-significance
#16
Feng Li, Christopher J Bae, Christopher B Ramsey, Fuyou Chen, Xing Gao
Due to the presence of multiple partial modern human skeletons thought to have been interred along with a diversity of evidence of symbolic behavior, Zhoukoudian Upper Cave (ZKD UC; formally "Choukoutien") from northern China has long been a critical site for understanding Late Quaternary human evolution and particularly the role eastern Asia played. Unfortunately, uncertainty regarding ZKD UC's chronology has long hindered determination of its importance in the debate over modern human origins. This situation has been particularly problematic because dates from the primary archaeological layers of ZKD UC have ranged from the Late Pleistocene to the Early Holocene (∼34-10 ka), with clearly different implications depending on which age is used...
May 16, 2018: Journal of Human Evolution
https://www.readbyqxmd.com/read/29778237/prevalence-temporal-evolution-and-impact-on-survival-of-ventricular-conduction-blocks-in-patients-with-acute-coronary-syndrome-and-cardiogenic-shock
#17
Heli Tolppanen, Tuija Javanainen, Jordi Sans-Rosello, Jiri Parenica, Tuomo Nieminen, Marie Pavlusova, Josep Masip, Lars Köber, Marek Banaszewski, Alessandro Sionis, Jindrich Spinar, Veli-Pekka Harjola, Raija Jurkko, Johan Lassus
Changes in QRS duration and pattern are regarded to reflect severe ischemia in acute coronary syndromes (ACS), and ventricular conduction blocks (VCBs) are recognized high-risk markers in both ACS and acute heart failure. Our aim was to evaluate the prevalence, temporal evolution, association with clinical and angiographic parameters, and impact on mortality of VCBs in ACS-related cardiogenic shock (CS). Data of 199 patients with ACS-related CS from a prospective multinational cohort were evaluated with electrocardiogram data from baseline and day 3...
April 20, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29778207/evolution-in-europe-of-african-swine-fever-genotype-ii-viruses-from-highly-to-moderately-virulent
#18
Gallardo C, Nurmoja I, Soler A, Delicado V, Simón A, Martin E, Perez C, Nieto R, Arias M
Since its arrival in the Caucasus and Russia in 2007, African swine fever virus (ASFV) has spread widely and has now affected the EU countries of Estonia, Latvia, Lithuania, Poland and, more recently, the Czech Republic and Romania. The ever-increasing evidence of seropositive wild boar in certain areas suggests that some animals may be surviving for some time or could even be recovering from the disease. This could be due to acquired immunity after the primary infection and/or the presence of related viruses of reduced virulence...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778197/genetic-analysis-and-biological-characteristics-of-different-internal-gene-origin-h5n6-reassortment-avian-influenza-virus-in-china-in-2016
#19
Wenqiang Sun, Jiaxin Li, Jiao Hu, Daxiu Jiang, Chaonan Xing, Tiansong Zhan, Xiufan Liu
Clade 2.3.4.4 of H5N6 subtype Avian Influenza Viruses (AIVs) has become dominant clade in South-East Asia. So far, a total of 16 cases of human infection, including 6 deaths, have been confirmed since 2014. In this study, we systematically investigated the genetic evolution and biological characteristics of these viruses. We first carried out phylogenetic and statistical analysis of all H5N6 viruses that were downloaded from Influenza Research Database, GISAID and isolates from our lab. We found that H5N6 AIVs continued to reassort with other AIVs subtypes since 2014...
June 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29778163/impacts-of-sodium-hydroxide-and-sodium-hypochlorite-aging-on-polyvinylidene-fluoride-membranes-fabricated-with-different-methods
#20
Qilong Wu, Xihui Zhang, Guodong Cao
This study compared the effects of chemical aging on the polyvinylidene fluoride (PVDF) membranes fabricated with the methods of non-solvent induced phase separation (NIPS) (named NIPS-PVDF) and thermally induced phase separation (TIPS) (named TIPS-PVDF). The chemical solutions of sodium hypochlorite (NaClO) and sodium hydroxide (NaOH) were chosen at the concentration of 5000mg/L. The equivalence of 5 and 10years was respectively selected as the time of aging. The physicochemical evolutions of membrane aging are characterized on the base of morphology analysis, chemical components, permeation ability and mechanical properties...
May 2018: Journal of Environmental Sciences (China)
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