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Yoshifumi Sonobe, Ghanashyam Ghadge, Katsuhisa Masaki, Ataman Sendoel, Elaine Fuchs, Raymond P Roos
Expansion of a hexanucleotide repeat (HRE), GGGGCC, in the C9ORF72 gene is recognized as the most common cause of familial amyotrophic lateral sclerosis (FALS), frontotemporal dementia (FTD) and ALS-FTD, as well as 5-10% of sporadic ALS. Despite the location of the HRE in the non-coding region (with respect to the main C9ORF72 gene product), dipeptide repeat proteins (DPRs) that are thought to be toxic are translated from the HRE in all three reading frames from both the sense and antisense transcript. Here, we identified a CUG translation initiation codon that has a good Kozak consensus sequence as the translation initiation codon...
May 21, 2018: Neurobiology of Disease
Stanislava V Avrova, Olga E Karpicheva, Nikita A Rysev, Armen O Simonyan, Vladimir V Sirenko, Charles S Redwood, Yurii S Borovikov
The E41K mutation in TPM2 gene encoding muscle regulatory protein beta-tropomyosin is associated with nemaline myopathy and cap disease. The mutation results in a reduced Ca2+ -sensitivity of the thin filaments and in muscle weakness. To elucidate the structural basis of the reduced Ca2+ -sensitivity of the thin filaments, we studied multistep changes in spatial arrangement of tropomyosin (Tpm), actin and myosin heads during the ATPase cycle in reconstituted fibers, using the polarized fluorescence microscopy...
May 21, 2018: Biochemical and Biophysical Research Communications
Maria F Lopes-Virella, Gabriel Virella
Modified forms of LDL, both spontaneously formed in the organism or prepared in the laboratory, are immunogenic. As a consequence, antigen-antibody complexes (immune complexes, IC) formed in vivo can be measured in the peripheral blood, and their levels are strong predictors of cardiovascular disease (CVD). It has been possible to generate antibodies that recognize different LDL modifications, allowing the analysis of circulating IC constitution. Clinical studies showed that the antigenic constitution of the IC has a modulating effect on the development of CVD...
May 23, 2018: Current Medicinal Chemistry
Carolyn J Piggott, Cerin John, Helen Bruce, Sally C Benton
BACKGROUND: Quantitative faecal immunochemical tests (FIT) for haemoglobin are being used for colorectal cancer (CRC) screening for asymptomatic populations and are being indicated as a suitable test to rule out CRC in symptomatic populations. Faecal samples are typically collected by patients using a probe attached to the cap of a device which is inserted into a collection device into the preservative buffer, passing through a collar to remove excess sample: this process has potential for pre-analytical error...
January 1, 2018: Annals of Clinical Biochemistry
Jiaji Cheng, Junjie Hao, Haochen Liu, Jiagen Li, Junzi Li, Xi Zhu, Xiaodong Lin, Kai Wang, Tingchao He
Ligand-induced chirality in semiconductor nanocrystals (NCs) has attracted attention because of the tunable optical properties of the NCs. Induced circular dichroism (CD) has been observed in CdX (X = S, Se, Te) NCs and their hybrids, but circularly polarized luminescence (CPL) in these fluorescent nanomaterials has been seldom reported. Herein, we describe the successful preparation of L- and D-cysteine-capped CdSe-dot/CdS-rods (DRs) with tunable CD and CPL behaviors and a maximum anisotropic factor (glum) of 4...
May 23, 2018: ACS Nano
John M McLaughlin, Qin Jiang, Raul E Isturiz, Heather L Sings, David L Swerdlow, Bradford D Gessner, Ruth M Carrico, Paula Peyrani, Timothy L Wiemken, William A Mattingly, Julio A Ramirez, Luis Jodar
Background: Following universal recommendation for use of 13-valent pneumococcal conjugate vaccine (PCV13) in US adults aged ≥65 years in September 2014, we conducted the first real-world evaluation of PCV13 vaccine effectiveness (VE) against hospitalized vaccine-type community-acquired pneumonia (CAP) in this population. Methods: Using a test-negative design, we identified cases and controls from a population-based surveillance study of adults in Louisville, Kentucky, who were hospitalized with CAP...
May 21, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Shrey Mathur, Aline Fuchs, Julia Bielicki, Johannes Van Den Anker, Mike Sharland
Background Pneumonia is the most common cause of death in children worldwide, accounting for 15% of all deaths of children under 5 years of age. This review summarises the evidence for the empirical antibiotic treatment of community-acquired pneumonia in neonates and children and puts emphasis on publications since the release of the previous WHO Evidence Summary report published in 2014. Methods A systematic search for systematic reviews and meta-analyses of antibiotic therapy for community-acquired pneumonia was conducted between 1 January 2013 and 10 November 2016...
November 2018: Paediatrics and International Child Health
Marcel K W Mackwitz, Alexandra Hamacher, Jeremy D Osko, Jana Held, Andrea Schöler, David W Christianson, Matthias U Kassack, Finn K Hansen
The multicomponent synthesis of a mini-library of histone deacetylase inhibitors with imidazo[1,2- a]pyridine-based cap groups is presented. The biological evaluation led to the discovery of the hit compound MAIP-032 as a selective HDAC6 inhibitor with promising anticancer activity. The X-ray structure of catalytic domain 2 from Danio rerio HDAC6 complexed with MAIP-032 revealed a monodentate zinc-binding mode.
May 23, 2018: Organic Letters
Marianne Brodmann, Eric Thérasse, Andrew Benko, Louis-Philippe Riel, Steven Dion, Philippe Généreux, Martin Brouillette
BACKGROUND: The aim of this study was to examine the safety and efficacy of the SoundBite™ Crossing System for the recanalization of infrainguinal chronic total occlusion (CTO) lesions. CTOs are frequent among patients with severe claudication or critical limb ischemia. Failure to recanalize CTOs remains common and is associated with poor prognosis. The SoundBite™ Crossing System (SoundBite Medical Solutions Inc., Montreal, Canada) is a newly developed device that uses a 0.018-inch wire (SoundBite™ Active Wire) to deliver acoustic shock waves to the distal tip of a steerable guidewire to facilitate directed penetration of the proximal cap and crossing of the occlusion...
May 23, 2018: Journal of Cardiovascular Surgery
Marcos Ñato, Josep Gomez-Lara, Rafael Romaguera, Gerard Roura, José Luis Ferreiro, Luis Teruel, Montserrat Gracida, Lara Fuentes, Bert Vandeloo, Joan-Antoni Gomez-Hospital, Angel Cequier
Patients with late/very-late stent thrombosis (ST) are at high risk of recurrent-ST. The mechanisms of recurrent-ST are largely unknown. The objective is to describe the 1-year optical coherence tomography (OCT) findings of patients suffering from late/very-late ST treated with intravascular imaging guided percutaneous coronary intervention (PCI). All consecutive patients with late/very-late ST undergoing intravascular imaging guided PCI were screened to undergo coronary angiography and OCT examination at 1 year...
May 22, 2018: International Journal of Cardiovascular Imaging
Bingshan Tao, Philippe Barate, Xavier Devaux, Pierre Renucci, Julien Frougier, Abdelhak Djeffal, Shiheng Liang, Bo Xu, Michel Hehn, Henri Jaffrès, Jean-Marie George, Xavier Marie, Stéphane Mangin, Xiufeng Han, Zhanguo Wang, Yuan Lu
Remanent spin injection into a spin light emitting diode (spin-LED) at zero magnetic field is a prerequisite for future application of spin optoelectronics. Here, we demonstrate the remanent spin injection into GaAs based LEDs with a thermally stable Mo/CoFeB/MgO spin injector. A systematic study of magnetic properties, polarization-resolved electroluminescence (EL) and atomic-scale interfacial structures has been performed in comparison with the Ta/CoFeB/MgO spin injector. The perpendicular magnetic anisotropy (PMA) of the Mo/CoFeB/MgO injector shows more advanced thermal stability than that of the Ta/CoFeB/MgO injector and robust PMA can be maintained up to 400 °C annealing...
May 23, 2018: Nanoscale
Martin Fuchs, David Riedl, Astrid Bock, Gerhard Rumpold, Kathrin Sevecke
Background: Few studies have examined the prevalence of problematic internet use (PIU) in young people undergoing inpatient treatment in child and adolescent psychiatry centers. The aims of our study were thus (a) to assess the frequency of comorbid PIU in a sample of adolescent psychiatric inpatients and compare it with a control group of nonreferred adolescents and (b) to gain insights into correlations between PIU and psychiatric comorbidities. Methods: 111 child and adolescent psychiatry inpatients (CAP-IP, mean age 15...
2018: BioMed Research International
Francesco Cavallin, Giulia Segafredo, Damiano Pizzol, William Massavon, Marta Lusiani, Olivier Wingi, Manuela De Vivo, Liviana Da Dalt, Chiara Boscardin, Fabio Manenti, Giovanni Putoto, Daniele Trevisanuto
BACKGROUND AND OBJECTIVES: World Health Organization guidelines recommend covering the head during kangaroo mother care (KMC), but the effect of a cap on neonatal thermal control during KMC remains to be defined. Our objective was to assess the effectiveness and safety of a woolen cap in maintaining low birth weight infants (LBWIs) in normal thermal range during KMC. METHODS: Three hundred LBWI candidates for KMC in 3 African hospitals were randomly assigned to KMC with (CAP group) or without (NOCAP group) a woolen cap in a 1:1 ratio during the first week after birth...
May 22, 2018: Pediatrics
Ivan N Shatsky, Ilya M Terenin, Victoria V Smirnova, Dmitri E Andreev
Eukaryotic translation initiation relies on the m7 G cap present at the 5' end of all mRNAs. Some viral mRNAs employ alternative mechanisms of initiation based on internal ribosome entry. The 'IRES ideology' was adopted by researchers to explain the differential translation of cellular mRNAs when the cap recognition is suppressed. However, some cellular IRESs have already been challenged and others are awaiting their validation. As an alternative cap-independent mechanism, we propose adopting the concept of cap-independent translation enhancers (CITEs) for mammalian mRNAs...
May 19, 2018: Trends in Biochemical Sciences
John P Haran, Gregory A Volturo
BACKGROUND: Emergency physicians are under pressure to prescribe an antibiotic early in the treatment course of a patient with community-acquired pneumonia (CAP). Macrolides are recommended first-line empirical therapy for the outpatient treatment of CAP in patients without associated comorbidities; however, resistance rates to macrolides in the United States are on the rise. OBJECTIVE: This review considers macrolide use for CAP in the emergency department by reviewing the microbiologic environment in the United States and whether macrolides can overcome in vitro resistance during actual clinical use...
May 19, 2018: Journal of Emergency Medicine
Preeta K Kutty, Seema Jain, Thomas H Taylor, Anna M Bramley, Maureen H Diaz, Krow Ampofo, Sandra R Arnold, Derek J Williams, Kathryn M Edwards, Jonathan A McCullers, Andrew T Pavia, Jonas M Winchell, Stephanie J Schrag, Lauri A Hicks
Background: The burden and epidemiology of Mycoplasma pneumoniae (Mp) among U.S. children (<18 years) hospitalized with community-acquired pneumonia (CAP) are poorly understood. Methods: In the Etiology of Pneumonia in the Community (EPIC) study, we prospectively enrolled 2254 children hospitalized with radiographically-confirmed pneumonia from January 2010-June 2012 and tested nasopharyngeal/oropharyngeal swabs for Mp using real-time polymerase chain reaction (PCR)...
May 17, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Shawn C Nessen, Jennifer Gurney, Todd E Rasmussen, Andrew P Cap, Elizabeth Mann-Salinas, Tuan D Le, Stacy Shackelford, Kyle N Remick, Kevin Akers, Brian Eastridge, Donald Jenkins, Zsolt Stockinger, Clinton K Murray, Kirby Gross, Jason Seery, Robert Mabry, John B Holcomb
Level IV/Observational/Retrospective/Historic Controls.
May 4, 2018: Journal of Trauma and Acute Care Surgery
Teryn R Roberts, Megan J Neufeld, Michael A Meledeo, Andrew P Cap, Leopoldo C Cancio, Melissa M Reynolds, Andriy I Batchinsky
BACKGROUND: Management of hemostasis is a key challenge during extracorporeal life support (ECLS). Metal organic frameworks are being investigated for use as nitric oxide (NO) catalysts for incorporation into ECLS circuitry to prevent thrombosis at the blood-biomaterial interface. A specific metal organic framework, CuBTTri, has been shown to accelerate NO-release from bioavailable donors like S-nitrosoglutathione (GSNO). We hypothesized that CuBTTri would reduce thrombus formation in whole blood (WB) and inhibit platelet aggregation...
May 21, 2018: Journal of Trauma and Acute Care Surgery
Jianping He, Jianzhuang Chen, Shaoliang Lin, Dechao Niu, Jina Hao, Xiaobo Jia, Nan Li, Jinlou Gu, Yongsheng Li, Jianlin Shi
A pillar[5]arene-based nonionic polyrotaxane (PR) with star-poly(ε-caprolactone) (S-PCL) as the axle, pillar[5]arene (DEP5) as the wheel and adamantane as the end-capped group is designed and synthesized. The resulting PR is subsequently assembled with β-cyclodextrin end-capped pH-stimulated poly (acrylic acid) (CD-PAA) via a host-guest interaction to form the supramolecular pseudo-block polymer PR-PAA. This supramolecular pseudo-block polymer could self-assemble in aqueous solution to produce PR-PAA based supramolecular vesicular nanoparticles (PR-SVNPs), which presents significantly enhanced drug loading capacity (DLC, 45...
May 22, 2018: Biomacromolecules
Maria Garcia-Gil, Jon Torres-Unda, Izaro Esain, Iratxe Duñabeitia, Susana M Gil, Javier Gil, Jon Irazusta
Garcia-Gil, M, Torres-Unda, J, Esain, I, Duñabeitia, I, Gil, SM, Gil, J, and Irazusta, J. Anthropometric parameters, age, and agility as performance predictors in elite female basketball players. J Strength Cond Res 32(6): 1723-1730, 2018-In addition to technical, tactical, and psychological skills, performance in playing basketball depends on anthropometry and physical fitness. However, limited information is available regarding such features in women. We hypothesized that anthropometry and physical fitness are associated with female basketball performance, and consequently, performance could be predicted using the results of certain anthropometric measures and fitness tests...
June 2018: Journal of Strength and Conditioning Research
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