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https://www.readbyqxmd.com/read/29350392/diagnostic-and-prognostic-micro-rnas-in-ischemic-stroke-due-to-carotid-artery-stenosis-and-in-acute-coronary-syndrome-the-4-year-prospective-study
#1
Jacek Gacoń, Rafał Badacz, Ewa Stępień, Izabela Karch, Francisco J Enguita, Krzysztof Żmudka, Tadeusz Przewłocki, Anna Kabłak-Ziembicka
BACKGROUND: Circulating microRNAs (miRs) levels are potentially important diagnostic and prognostic biomarkers in acute coronary syndrome (ACS) or cerebral ischemic event (CIE) resulting from internal carotid artery stenosis (ICAS). AIM: This 4-year prospective study aimed to compare the levels of circulating miRs in ACS vs CIE patients, and investigate miRs potentially associated with risk of recurrent cardiovascular event. METHODS: The circulating miRs levels (miR-1-3p, miR-16-5p, miR-34a-5p, mir-122-5p, miR-124-3p, miR-133a-3p, miR-133b, miR-134-5p, miR-208b-3p, miR-375 and miR-499-5p) were compared in 43 (34M, 57...
January 19, 2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29345717/vasoconstrictive-responses-of-the-cephalic-vein-during-first-time-cardiac-implantable-electronic-device-placement
#2
Roman Steckiewicz, Elżbieta Barbara Świętoń, Magdalena Bogdańska, Przemysław Stolarz
BACKGROUND: During cardiac implantable electronic device (CIED) implantation procedures cardiac leads have been mostly introduced transvenously. The associated injury to the selected vessel and adjacent tissues may induce reflex vasoconstriction. PURPOSE: To assess the incidence of cephalic vein (CV) vasoconstriction during first-time CIED implantation. METHODS: Of the 146 evaluated first-time CIED implantation procedures conducted in our center in 2016, we selected those during which CV vasoconstriction was recorded...
January 18, 2018: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29344923/potential-effects-of-low-dose-average-ct-on-cardiac-implantable-electronic-devices
#3
Emily Y Pan, Dershan Luo, Tinsu Pan
BACKGROUND: Average CT has been shown to be more accurate than conventional helical CT in quantitation of the PET data. The risk of CT irradiation of a cardiac implantable electronic device (CIED) causing an adverse event is low and is generally outweighed by the clinical benefit of a medically indicated examination. However, irradiation of CIED over one breath cycle in cine CT scan for average CT could impose risks on a patient who is pacing dependent. The purpose of this study was to demonstrate that low-dose average CT can be safe for CIED...
January 17, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29341425/synthesis-of-novel-dy3-activated-ba2-cazn2-si6-o17-phosphors-for-white-light-emitting-diodes
#4
G Annadurai, S Masilla Moses Kennedy, V Sivakumar
Dysprosium ion (Dy3+ ) activated Ba2 CaZn2 Si6 O17 phosphors were synthesized using high temperature solid-state reaction method. Powder X-ray diffraction (PXRD) analysis confirmed the phase formation of the as-prepared phosphors. Scanning electron microscopy (SEM) analysis disclosed an agglomeration of particles with an irregular morphology. Under 350 nm excitation, the emission spectrum of Dy3+ ions showed bands at 481 nm (blue), 577 nm (yellow) and 674 nm (red). The influence of the Dy3+ concentration on its emission intensity was investigated...
January 17, 2018: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/29341172/statin-use-and-the-risk-of-cardiovascular-implantable-electronic-device-infection-a-cohort-study-in-a-veteran-population
#5
Talal Alzahrani, Angelike P Liappis, Larry M Baddour, Pamela E Karasik
BACKGROUND: The rate of cardiovascular implantable electronic device infection (CIEDI) has increased, despite the use of perioperative antibiotics at the time of device placement or revision. This is due, in part, to the presence of multiple comorbid conditions in an elderly population, in general, who require CIED. Statins may have an antibacterial effect, although there is currently no evidence that the likelihood of CIEDI has been impacted by statin use. METHODS: A retrospective cohort study was performed to assess whether statins are associated with a reduced risk of CIEDI...
January 17, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29340867/photoluminescent-and-thermoluminescent-studies-of-dy3-and-eu3-doped-y2o3-phosphors
#6
Tarkeshwari Verma, Sadhana Agrawal
Eu3+ doped and Dy3+ codoped yttrium oxide (Y2O3) phosphors have been prepared using solid-state reaction technique (SSR). The prepared phosphors were characterized by X-ray diffractometer (XRD), energy dispersive X-ray (EDX) spectroscopy, scanning electron microscopy (SEM) and Fourier transforms infrared spectroscopy (FTIR) techniques. Photoluminescence (PL) and Thermoluminescence (TL) properties were studied in detail. PL emission spectra were recorded for prepared phosphors under excitation wavelength 254 nm, which show a high intense peak at 613 nm for Y2O3:Dy3+, Eu3+ (1:1...
January 16, 2018: Journal of Fluorescence
https://www.readbyqxmd.com/read/29335685/can-coloured-fluoride-gel-stain-demineralised-enamel
#7
Flávia Isaia Vieira, Fabio Zovico Maxnuck Soares, Rachel de Oliveira Rocha
PURPOSE: This study evaluated the colour changes of demineralized enamel after treatment with coloured fluoride gel. MATERIALS AND METHODS: Enamel blocks obtained from bovine incisors were submitted to artificial caries induction by pH cycling followed by fluoride gel applications (2% sodium fluoride, pH 6.8) using a colourless gel (control group), pink or blue gels. The enamel optical properties were evaluated by spectrophotometry, using the CIE L*a*b* system at baseline (sound enamel), after artificial caries induction (demineralised enamel) and after each of the five fluoride gel applications (weekly intervals)...
January 15, 2018: Oral Health & Preventive Dentistry
https://www.readbyqxmd.com/read/29335427/chronic-alcohol-exposure-disrupts-top-down-control-over-basal-ganglia-action-selection-to-produce-habits
#8
Rafael Renteria, Emily T Baltz, Christina M Gremel
Addiction involves a predominance of habitual control mediated through action selection processes in dorsal striatum. Research has largely focused on neural mechanisms mediating a proposed progression from ventral to dorsal lateral striatal control in addiction. However, over reliance on habit striatal processes may also arise from reduced cortical input to striatum, thereby disrupting executive control over action selection. Here, we identify novel mechanisms through which chronic intermittent ethanol exposure and withdrawal (CIE) disrupts top-down control over goal-directed action selection processes to produce habits...
January 15, 2018: Nature Communications
https://www.readbyqxmd.com/read/29327404/a-novel-red-emitting-phosphor-libab9-o15-sm2-sm3-li-with-broad-excitation-band-for-white-leds
#9
Ting Li, Zhijun Wang, Panlai Li, Shuchao Xu, Qiongyu Bai, Zhiping Yang
A novel tunable red emitting phosphor LiBaB9 O15 :Sm2+ /Sm3+ , Li+ with broad excitation band was synthesized by a high temperature solid-state method. Luminescence properties were investigated in detail by luminescence, X-ray photoelectron spectroscopy (XPS) spectra and CIE chromaticity coordinates. XPS data confirmed that there were Sm3+ in LiBaB9 O15 :Sm3+ and Sm2+ /Sm3+ in LiBaB9 O15 :Sm2+ /Sm3+ , respectively. Spectral property of LiBaB9 O15 :Sm3+ , LiBaB9 O15 :Sm3+ /Sm2+ and LiBaB9 O15 :Sm2+ , Li+ presented that the excitation band of Sm3+ widened and the excitation band of Sm2+ ranged from 350 to 450 nm...
January 12, 2018: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/29327362/p-wave-and-interatrial-block-new-predictor-for-atrial-high-rate-episodes-in-patients-with-cardiac-implantable-electronic-devices
#10
José M Rubio Campal, Juan Benezet-Mazuecos, José Antonio Iglesias Bravo, Pepa Sánchez Borque, Ángel Miracle Blanco, Juan José de la Vieja Alarcón, Jaime Martínez Mariscal, Adrian M Baranchuk, Jerónimo Farré Muncharaz
BACKGROUND: The presence of interatrial block (IAB) is associated with the development of atrial fibrillation (AF). The aim of this study was to determine whether P-wave duration and presence of IAB before the implantation of a cardiac implantable electronic device (CIED) are associated with the presence of atrial high rate episodes (AHRE), during long-term follow-up. METHODS: 380 patients (57% men; 75±10 years) were included. IAB was defined according to the International Consensus Criteria...
January 12, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29325797/consequences-of-retained-defibrillator-and-pacemaker-leads-following-heart-transplantation-an-underrecognized-problem
#11
Luise Holzhauser, Teruhiko Imamura, Hemal M Nayak, Nitasha Sarswat, Gene Kim, Jayant Raikhelkar, Sara Kalantari, David Onsager, Tae Song, Takeyoshi Ota, Valluvan Jeevanandam, Gabriel Sayer, Nir Uriel
BACKGROUND: Cardiovascular implantable electronic devices (CIED) are common in patients undergoing heart transplantation (HT) and complete removal is not always possible at the time of transplant. METHODS: We retrospectively assessed the frequency of retained CIED leads and clinical consequences in consecutive HT patients from 2013-2016. Clinical outcomes included bacteremia, upper extremity deep venous thrombosis (UEDVT), lead migration and inability to perform MRI...
January 8, 2018: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/29322305/construction-of-mammographic-examination-process-ontology-using-bottom-up-hierarchical-task-analysis
#12
Ayako Yagahara, Yuki Yokooka, Guoqian Jiang, Shintarou Tsuji, Akihisa Fukuda, Naoki Nishimoto, Kunio Kurowarabi, Katsuhiko Ogasawara
Describing complex mammography examination processes is important for improving the quality of mammograms. It is often difficult for experienced radiologic technologists to explain the process because their techniques depend on their experience and intuition. In our previous study, we analyzed the process using a new bottom-up hierarchical task analysis and identified key components of the process. Leveraging the results of the previous study, the purpose of this study was to construct a mammographic examination process ontology to formally describe the relationships between the process and image evaluation criteria to improve the quality of mammograms...
January 10, 2018: Radiological Physics and Technology
https://www.readbyqxmd.com/read/29322149/exploring-physical-and-chemical-properties-in-new-multifunctional-indium-bismuth-and-zinc-based-1d-and-2d-coordination-polymers
#13
G E Gomez, R F D'vries, D F Lionello, L M Aguirre-Díaz, M Spinosa, C S Costa, M C Fuertes, R A Pizarro, A M Kaczmarek, J Ellena, L Rozes, M Iglesias, R Van Deun, C Sanchez, M A Monge, G J A A Soler-Illia
Main group element coordination polymers (MGE-CPs) are important compounds for the development of multifunctional materials. However, there has been a shortage of studies regarding their structural, optical, catalytic, mechanical, and antibacterial properties. This work presents an exhaustive study of a set of crystalline MGE-CPs obtained from bismuth and indium metals and iminodiacetate, 1,2,4,5-benzenetetracarboxylate, and 2,2'-bipyridine as building blocks. An in-depth topological analysis of the networks was carried out...
January 11, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29321191/mortality-after-magnetic-resonance-imaging-of-the-brain-in-patients-with-cardiovascular-implantable-devices
#14
Deepak Padmanabhan, Mary L Jondal, David O Hodge, Ramila A Mehta, Nancy G Acker, Connie M Dalzell, Suraj Kapa, Samuel J Asirvatham, Yong-Mei Cha, Joel P Felmlee, Robert E Watson, Paul A Friedman
BACKGROUND: Use of magnetic resonance imaging (MRI) brain is restricted in patients with cardiovascular implantable electronic devices (CIEDs). We proposed to determine whether mortality difference exists for patients with non-MRI-conditional CIEDs undergoing brain MRI compared with controls. METHODS AND RESULTS: Retrospective analysis of prospectively collected data was performed to compare all-cause mortality in patients with CIEDs undergoing brain MRI (CIED-MRI) with 3 control groups matched for age, sex, imaging year, and type of CIED: (1) no CIED, brain MRI (no-CIED-MRI); (2) CIED, brain computerized tomography (CT) scan (CIED-CT); and (3) no CIED, brain CT (no-CIED-CT)...
January 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29320931/physician-decision-making-in-anticoagulating-atrial-fibrillation-a-prospective-survey-of-a-physician-notification-system-for-atrial-fibrillation-detected-on-cardiac-implantable-electronic-devices-of-patients-at-increased-risk-of-stroke
#15
Justin M Cloutier, Clarence Khoo, Brett Hiebert, Anthony Wassef, Colette M Seifer
OBJECTIVES: The objectives of this study were to evaluate the effectiveness of a physician notification system for atrial fibrillation (AF) detected on cardiac devices, and to assess predictors of anticoagulation in patients with device-detected AF. METHODS: In 2013, a physician notification system for AF detected on a patient's CIED [including pacemakers, implantable cardioverter defibrillators (ICD) or cardiac resynchronization therapy (CRT) devices] was implemented, with a recommendation to consider oral anticoagulation in high-risk patients...
January 1, 2018: Therapeutic Advances in Cardiovascular Disease
https://www.readbyqxmd.com/read/29319292/monolithic-inorganic-zno-gan-semiconductors-heterojunction-white-light-emitting-diodes
#16
Seonghoon Jeong, Seung Kyu Oh, Jae-Hyun Ryou, Kwang-Soon Ahn, Keun Man Song, Hyunsoo Kim
Monolithic light-emitting diodes (LEDs) that can generate white color at the one-chip level without wavelength conversion through packaged phosphors or chip integration for photon recycling are of particular importance to produce compact, cost-competitive, and smart lighting sources. In this study, monolithic white LEDs were developed based on ZnO/GaN semiconductor heterojunctions. The electroluminescence (EL) wavelength of the ZnO/GaN heterojunction could be tuned by a post-thermal annealing process, causing the generation of an interfacial Ga2O3 layer...
January 10, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29317316/thirty-day-readmissions-after-cardiac-implantable-electronic-devices-in-the-united-states-insights-from-the-nationwide-readmissions-database
#17
Brijesh Patel, Naveen Sablani, Jalaj Garg, Rahul Chaudhary, Mahek Shah, Rahul Gupta, Talha Nazir, Babak Bozorgnia, Santosh K Padala, Sampath Gunda, Kenneth A Ellenbogen
BACKGROUND: Limited data are available regarding true estimates of individual complications contributing to readmissions after cardiac implantable electronic device (CIED) implantation. OBJECTIVE: We aimed to identify predictors of 30-day readmission in patients admitted for CIED implantation. METHODS: The study cohort consisted of patients who received CIED implantation in 2014, identified from National Readmission Database. Readmission was defined as a subsequent hospital admission within 30 days after discharge day of index admission...
January 6, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29315888/adamantyl-substitution-strategy-for-realizing-solution-processable-thermally-stable-deep-blue-thermally-activated-delayed-fluorescence-materials
#18
Yoshimasa Wada, Shosei Kubo, Hironori Kaji
Highly efficient solution-processable emitters, especially deep-blue emitters, are greatly desired to develop low-cost and low-energy-consumption organic light-emitting diodes (OLEDs). A recently developed class of potentially metal-free emitters, thermally activated delayed fluorescence (TADF) materials, are promising candidates, but solution-processable TADF materials with efficient blue emissions are not well investigated. In this study, first the requirements for the design of efficient deep-blue TADF materials are clarified, on the basis of which, adamantyl-substituted TADF molecules are developed...
January 9, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29315347/long-term-ethanol-exposure-temporal-pattern-of-microrna-expression-and-associated-mrna-gene-networks-in-mouse-brain
#19
Elizabeth A Osterndorff-Kahanek, Gayatri R Tiwari, Marcelo F Lopez, Howard C Becker, R Adron Harris, R Dayne Mayfield
Long-term alcohol use can result in lasting changes in brain function, ultimately leading to alcohol dependence. These functional alterations arise from dysregulation of complex gene networks, and growing evidence implicates microRNAs as key regulators of these networks. We examined time- and brain region-dependent changes in microRNA expression after chronic intermittent ethanol (CIE) exposure in C57BL/6J mice. Animals were sacrificed at 0, 8, and 120h following the last exposure to four weekly cycles of CIE vapor and we measured microRNA expression in prefrontal cortex (PFC), nucleus accumbens (NAC), and amygdala (AMY)...
2018: PloS One
https://www.readbyqxmd.com/read/29310933/management-of-patients-with-cardiac-implantable-electronic-devices-cied-undergoing-radiotherapy-a-consensus-document-from-associazione-italiana-aritmologia-e-cardiostimolazione-aiac-associazione-italiana-radioterapia-oncologica-airo-associazione-italiana-fisica
#20
Massimo Zecchin, Mara Severgnini, Alba Fiorentino, Vincenzo Livio Malavasi, Loris Menegotti, Filippo Alongi, Domenico Catanzariti, Barbara Alicja Jereczek-Fossa, Michele Stasi, Elvio Russi, Giuseppe Boriani
The management of patients with a cardiac implanted electronic device (CIED) receiving radiotherapy (RT) is challenging and requires a structured multidisciplinary approach. A consensus document is presented as a result of a multidisciplinary working group involving cardiac electrophysiologists, radiation oncologists and physicists in order to stratify the risk of patients with CIED requiring RT and approaching RT sessions appropriately. When high radiation doses and beam energy higher than 6MV are used, CIED malfunctions can occur during treatment...
December 24, 2017: International Journal of Cardiology
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