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https://www.readbyqxmd.com/read/27920833/the-association-between-defibrillation-shock-energy-and-acute-cardiac-damage-in-patients-with-implantable-cardioverter-defibrillators
#1
Daisuke Ishigaki, Daisuke Kutsuzawa, Takanori Arimoto, Tadateru Iwayama, Naoaki Hashimoto, Yu Kumagai, Satoshi Nishiyama, Hiroki Takahashi, Tetsuro Shishido, Takuya Miyamoto, Joji Nitobe, Akio Fukui, Tetsu Watanabe, Isao Kubota
BACKGROUND: The aim of this study was to establish a minimally invasive defibrillation testing (DT) protocol for patients with implantable cardioverter defibrillators (ICDs). METHODS: Two different energy DTs were performed, immediately after (15 J-DT) and 7 days after (≤10 J-DT) device implantation, in 20 consecutive ICD implantation patients. Cardiac-troponin T (c-TNT) and heart-type fatty acid binding protein (H-FABP) levels were measured before implantation, 2 h after implantation, and 1 day after each DT...
December 2016: Journal of Arrhythmia
https://www.readbyqxmd.com/read/27916295/association-of-biomarkers-with-serious-cardiac-adverse-events-during-abiraterone-acetate-treatment-in-castration-resistant-prostate-cancer
#2
REVIEW
Sara Campora, Eleonora Campazzi, Silvia Zanardi, Matteo Puntoni, Marco Piccininno, Arnoldo Piccardo, Mehrdad Shoushtari Zadeh Naseri, Carlotta Defferrari, Nicoletta Provinciali, Marilena Petrera, Domenico Marra, Ennio Biscaldi, Gian Carlo Antonucci, Damiano Ricci, Matteo Clavarezza, Alessandra Gennari, Alberto Gozza, Mauro D'Amico, Marco Mori, Andrea DeCensi
BACKGROUND: Abiraterone acetate is an effective drug for castration-resistant prostate cancer, but cardiac serious adverse events (SAEs) may occur. We studied their association with N-terminal pro-brain natriuretic peptide (NT-proBNP) and troponin T (TnT) during abiraterone therapy. PATIENTS AND METHODS: In a single institution, 17 patients were treated with abiraterone acetate 1 g daily with concomitant prednisone and then switched to dexametasone plus canrenone...
December 2016: Translational Oncology
https://www.readbyqxmd.com/read/27914667/high-sensitivity-troponin-t-and-the-risk-of-recurrent-readmissions-after-hospitalisation-for-acute-heart-failure
#3
D Escribano, E Santas, G Miñana, A Mollar, S García-Blas, E Valero, A Payá, F J Chorro, J Sanchis, J Núñez
OBJECTIVES: High-sensitivity troponin is a biomarker of myocardial damage and is associated with a greater risk of mortality and disease progression in patients with acute heart failure (AHF). However, its relationship with the risk of future readmissions is less known. The aim of this study was to assess the association between ultrasensitive troponin T (TnT-us) values in patients with AHF and the risk of recurrent readmissions in the follow-up. METHODS: We prospectively included a cohort of 621 consecutive patients with AHF, excluding those patients with acute coronary syndrome...
November 30, 2016: Revista Clínica Española
https://www.readbyqxmd.com/read/27897140/agins2-quantum-dots-for-the-detection-of-trinitrotoluene
#4
Alfred J Baca, Heather A Meylemans, Lawrence Baldwin, Lee R Cambrea, Ji Feng, Yadong Yin, M Joseph Roberts
AgInS2 (AIS) quantum dots (QDs) were synthesized via a thermal decomposition reaction with dodecylamine as the ligand to help stabilize the QDs. This reaction procedure is relatively easy to implement, scalable to large batches (up to hundreds of milligrams of QDs are produced), and a convenient method for the synthesis of chalcogenide QDs. Metal powders of AgNO3 and In(NO3)3, were used as the metal precursors while diethyldithiocarbamate was used as the sulfur source. The AIS QDs were characterized via transmission electron microscopy, atomic force microscopy, and energy dispersive x-ray spectroscopy...
January 6, 2017: Nanotechnology
https://www.readbyqxmd.com/read/27892717/dental-implants-modified-with-drug-releasing-titania-nanotubes-therapeutic-potential-and-developmental-challenges
#5
Karan Gulati, Sašo Ivanovski
The trans-mucosal nature of dental implants presents a unique therapeutic challenge, requiring not only rapid establishment and subsequent maintenance of osseointegration, but also the formation of resilient soft tissue integration. Key challenges in achieving long-term success are sub-optimal bone integration in compromised bone conditions and impaired trans-mucosal tissue integration in the presence of a persistent oral microbial biofilm. These challenges can be targeted by employing a drug-releasing implant modification such as TiO2 nanotubes (TNTs), engineered on titanium surfaces via electrochemical anodization...
November 28, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27888755/high-sensitive-cardiac-troponin-t-testing-the-test
#6
Dominik G Haider, Thomas Klemenz, Georg Martin Fiedler, Christos T Nakas, Aristomenis K Exadaktylos, Alexander B Leichtle
BACKGROUND: High sensitive cardiac troponin T (hs-TnT) found its way into everyday clinical routine to diagnose acute myocardial infarction (AMI). However, its levels vary considerably based on the underlying pathophysiology of the patients. Hence we sought to test the applicability of the currently only available hs-TnT assay (Roche Diagnostics, Switzerland) to diagnose acute myocardial infarction. METHODS AND PATIENTS: Retrospectively, we analyzed the hs-TnT results of 1573 patients admitted to a level A university hospital emergency department...
October 19, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27884243/high-sensitivity-troponin-t-and-mortality-after-elective-percutaneous-coronary-intervention
#7
Gjin Ndrepepa, Roisin Colleran, Siegmund Braun, Salvatore Cassese, Julia Hieber, Massimiliano Fusaro, Sebastian Kufner, Ilka Ott, Robert A Byrne, Oliver Husser, Christian Hengstenberg, Karl-Ludwig Laugwitz, Heribert Schunkert, Adnan Kastrati
BACKGROUND: The prognostic value of high-sensitivity troponin T (hs-TnT) elevation after elective percutaneous coronary intervention (PCI) in patients with or without raised baseline hs-TnT levels is unclear. OBJECTIVES: The goal of this study was to assess whether the prognostic value of post-procedural hs-TnT level after elective PCI depends on the baseline hs-TnT level. METHODS: This study included 5,626 patients undergoing elective PCI who had baseline and peak post-procedural hs-TnT measurements available...
November 29, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27883932/biological-response-of-human-suture-mesenchymal-cells-to-titania-nanotube-based-implants-for-advanced-craniosynostosis-therapy
#8
Manpreet Bariana, Prem Dwivedi, Sarbin Ranjitkar, John A Kaidonis, Dusan Losic, Peter J Anderson
Titania nanotubes (TNTs) engineered on titanium (Ti) surfaces (i.e. TNT/Ti) and loaded with specific drugs have been recognised as a promising solution for localised therapeutic delivery to address several medical problems not feasible with conventional drug administration. We propose the use of TNT/Ti protein-releasing implants to treat paediatric craniofacial abnormality in craniosynostosis caused by premature fusion of cranial sutures. In this study, we have analysed the biological response of human suture mesenchymal cells (SMCs), extracted from two different patients undergoing craniofacial reconstruction surgery, at the TNT/Ti implant surface...
November 17, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27876412/advanced-symptoms-are-associated-with-myocardial-damage-in-patients-with-severe-aortic-stenosis
#9
Ricardo A Spampinato, Manuela Tasca, Michael A Borger, Valerie Schloma, Yaroslava Dmitrieva, Meinhard Mende, Thilo Noack, Elfriede Strotdrees, Friedrich-W Mohr
BACKGROUND: Once aortic stenosis (AS) is severe, patients develop symptoms at different stages. Indeed, symptom status may correlate poorly with the grade of valve narrowing. Multiple pathophysiological mechanisms, other than valvular load, may explain the link between AS and symptom severity. We aimed to describe the relationship between the severity of symptoms and the characteristics of a cohort of patients with severe AS already referred for aortic valve replacement (AVR). METHODS: We analyzed 118 consecutive patients (70±9 years, 55% men) with severe AS referred for AVR...
November 19, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27873501/a-comparison-of-peri-procedural-myocardial-infarction-between-paclitaxel-coated-balloon-and-drug-eluting-stent-on-de-novo-coronary-lesions
#10
Ae Young Her, Kyoung Im Cho, Gillian Balbir Singh, Scot Garg, Yong Hoon Kim, Bon Kwon Koo, Eun Seok Shin
PURPOSE: This study compared the impact of paclitaxel-coated balloons (PCB) or drug eluting stents (DES) on peri-procedural myocardial infarction (PMI) on de novo coronary lesion in stable patients. MATERIALS AND METHODS: In this observational study, we compared the incidence of PMI amongst patients with single vessel de novo coronary lesions who underwent treatment with a PCB or DES. Propensity score-matching analysis was used to assemble a cohort of patients with similar baseline characteristics...
January 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/27872884/data-on-clinical-characteristics-of-a-heart-failure-patients-cohort-with-reduced-ejection-fraction-and-analysis-of-the-circulating-values-of-five-different-heart-failure-biomarkers-high-sensitivity-troponin-t-galectin-3-c-terminal-propeptide-of-type-i-procollagen
#11
M Batlle, B Campos, M Farrero, M Cardona, B González, M A Castel, J Ortiz, E Roig, M J Pulgarín, J Ramírez, J L Bedini, M Sabaté, P García de Frutos, F Pérez-Villa
In this article, the full description of a heart failure with reduced ejection fraction (HF_REF) cohort of 192 patients is provided. Tables with the baseline demographic, prior history, ECG parameters, echocardiographic parameters, laboratory values and pharmacological treatment of these patients are included. Also, the quartile values of the analyzed circulating biomarkers: high sensitivity Troponin T (hs-TnT), galectin-3 (Gal-3), C-terminal propeptide of type I procollagen (CICP), soluble AXL (sAXL) and Brain Natriuretic Peptide (BNP) are given...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27871626/photolysis-of-2-4-6-trinitrotoluene-in-seawater-and-estuary-water-impact-of-ph-temperature-salinity-and-dissolved-organic-matter
#12
Dianne J Luning Prak, James E T Breuer, Evelyn A Rios, Erin E Jedlicka, Daniel W O'Sullivan
The influence of salinity, pH, temperature, and dissolved organic matter on the photolysis rate of 2,4,6-trinitrotoluene (TNT) in marine, estuary, and laboratory-prepared waters was studied using a Suntest CPS+® solar simulator equipped with optical filters. TNT degradation rates were determined using HPLC analysis, and products were identified using LC/MS. Minimal or no TNT photolysis occurred under a 395-nm long pass filter, but under a 295-nm filter, first-order TNT degradation rate constants and apparent quantum yields increased with increasing salinity in both natural and artificial seawater...
November 18, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27869349/high-resolution-raman-spectroscopies-for-the-nanostructural-characterization-of-explosive-nano-diamond-precursors
#13
Tanja Deckert-Gaudig, Vincent Pichot, Denis Spitzer, Volker Deckert
The specific attributes of nanodiamonds have attracted increasing interest for electronics or biomedical applications. An efficient synthetic route towards nanodiamonds is via detonation of hexolite (i.e. a mixture of TNT and RDX). In particular detonation of hexolite crystallized by spray flash evaporation (SFE), yields extremely small diamonds (< 4 nm). To unravel the detonation mechanism, a structural characterization of the explosives is required but challenging due to their thermal instability. We demonstrate a combination of conventional Raman spectroscopy and tip-enhanced Raman spectroscopy (TERS) for resolving morphological and structural differences of differently prepared hexolite nanocomposites...
November 21, 2016: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/27866762/synthesis-and-characterization-of-polyacrylic-acid-grafted-carboxylic-graphene-titanium-nanotube-composite-for-the-effective-removal-of-enrofloxacin-from-aqueous-solutions-adsorption-and-photocatalytic-degradation-studies
#14
Thayyath S Anirudhan, F Shainy, J Christa
Polyacrylic acid-grafted-carboxylic graphene/titanium nanotube (PAA-g-CGR/TNT) composite was synthesized. It was effectively used as adsorbent as well as photocatalyst. The composite was characterized by FTIR, XRD, SEM, TEM, Surface Area Analyzer, XPS and DRS. The photocatalytic activity of PAA-g-CGR/TNT composite was evaluated on the basis of the degradation of pollutants by using sunlight. The band gap of the prepared photocatalyst was found to be 2.6eV. The removal of the antibiotic enrofloxacin (ENR) was achieved by two step mechanism based on adsorption and photodegradation...
November 6, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27862819/expression-in-grasses-of-multiple-transgenes-for-degradation-of-munitions-compounds-on-live-fire-training-ranges
#15
Long Zhang, Ryan Routsong, Quyen Nguyen, Elizabeth L Rylott, Neil C Bruce, Stuart E Strand
The deposition of toxic munitions compounds, such as hexahydro-1, 3, 5-triniitro-1, 3, 5-trizaine (RDX), on soils around targets in live-fire-training ranges is an important source of groundwater contamination. Plants take up RDX but do not significantly degrade it. Reported here is the transformation of two perennial grass species, switchgrass (Panicum virgatum) and creeping bentgrass (Agrostis stolonifera), with the genes for degradation of RDX. These species possess a number of agronomic traits making them well-equipped for the uptake and removal of RDX from root zone leachates...
November 10, 2016: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/27860341/biostimulation-and-microbial-community-profiling-reveal-insights-on-rdx-transformation-in-groundwater
#16
Dongping Wang, Hakim Boukhalfa, Oana Marina, Doug S Ware, Tim J Goering, Fengjie Sun, Hajnalka E Daligault, Chien-Chi Lo, Momchilo Vuyisich, Shawn R Starkenburg
Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) is a high explosive released to the environment as a result of weapons manufacturing and testing worldwide. At Los Alamos National Laboratory, the Technical Area (TA) 16 260 Outfall discharged high-explosives-bearing water from a high-explosives-machining facility to Cañon de Valle during 1951 through 1996. These discharges served as a primary source of high-explosives and inorganic-element contamination in the area. Data indicate that springs, surface water, alluvial groundwater, and perched-intermediate groundwater contain explosive compounds, including RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine); HMX (octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine); and TNT (2,4,6-trinitrotoluene)...
November 17, 2016: MicrobiologyOpen
https://www.readbyqxmd.com/read/27853436/the-importance-of-intrinsically-disordered-segments-of-cardiac-troponin-in-modulating-function-by-phosphorylation-and-disease-causing-mutations
#17
REVIEW
Maria Papadaki, Steven B Marston
Troponin plays a central role in regulation of muscle contraction. It is the Ca(2+) switch of striated muscles including the heart and in the cardiac muscle it is physiologically modulated by PKA-dependent phosphorylation at Ser22 and 23. Many cardiomyopathy-related mutations affect Ca(2+) regulation and/or disrupt the relationship between Ca(2+) binding and phosphorylation. Unlike the mechanism of heart activation, the modulation of Ca(2+)-sensitivity by phosphorylation of the cardiac specific N-terminal segment of TnI (1-30) is structurally subtle and has proven hard to investigate...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27836303/prevalence-and-correlates-of-left-ventricular-diastolic-dysfunction-and-heart-failure-with-preserved-ejection-fraction-in-elderly-community-residents
#18
Xiaotong Cui, Jingmin Zhou, Xuejuan Jin, Jun Zhou, Michael Fu, Kai Hu, Aijun Sun, Junbo Ge
BACKGROUND: Left ventricular diastolic dysfunction (LVDD) is closely related to heart failure with preserved ejection fraction (HFpEF), while the prevalence and correlates of either LVDD or HFpEF in elderly population remain largely unknown. METHODS: The study was performed in 1274 community residents (769 women, aged ≥65years) who participated in the Shanghai Heart Health Study. Demographic, laboratory and echocardiographic data were obtained to analyze correlates of LVDD and HFpEF using univariate and multivariate Logistic analysis...
October 17, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27832613/prognostic-value-of-n-terminal-pro-b-type-natriuretic-peptide-troponin-t-and-growth-differentiation-factor-15-in-adult-congenital-heart-disease
#19
Vivan J Baggen, Annemien van den Bosch, Jannet A Eindhoven, Anne-Rose Schut, Judith A A E Cuypers, Maarten Witsenburg, Monique de Waart, Ron H van Schaik, Felix Zijlstra, Eric Boersma, Jolien W Roos-Hesselink
BACKGROUND: -The number of patients with adult congenital heart disease (ACHD) is rapidly increasing. In order to optimize patient management, there is a great need to accurately identify high-risk patients. Still, no biomarker has been firmly established as a clinically useful prognostic tool in this group. We studied the association of N-terminal pro-B-type natriuretic peptide (NT-proBNP), high-sensitive troponin-T (hs-TnT) and growth-differentiation factor 15 (GDF-15) with cardiovascular events in ACHD...
November 3, 2016: Circulation
https://www.readbyqxmd.com/read/27831562/mitochondrial-transfer-of-mesenchymal-stem-cells-effectively-protects-corneal-epithelial-cells-from-mitochondrial-damage
#20
Dan Jiang, Fei Gao, Yuelin Zhang, David Sai Hung Wong, Qing Li, Hung-Fat Tse, Goufeng Xu, Zhendong Yu, Qizhou Lian
Recent studies have demonstrated that mesenchymal stem cells (MSCs) can donate mitochondria to airway epithelial cells and rescue mitochondrial damage in lung injury. We sought to determine whether MSCs could donate mitochondria and protect against oxidative stress-induced mitochondrial dysfunction in the cornea. Co-culturing of MSCs and corneal epithelial cells (CECs) indicated that the efficiency of mitochondrial transfer from MSCs to CECs was enhanced by Rotenone (Rot)-induced oxidative stress. The efficient mitochondrial transfer was associated with increased formation of tunneling nanotubes (TNTs) between MSCs and CECs, tubular connections that allowed direct intercellular communication...
November 10, 2016: Cell Death & Disease
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