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Shujuan Sun, Kai Yao, Sijun Zhao, Pimiao Zheng, Sihan Wang, Yuyang Zeng, Demei Liang, Yuebin Ke, Haiyang Jiang
Six aflatoxins (AFs; AF B1 , B2 , G1 , G2 , M1 and M2 ) and six zearalenone (ZEN) analogs (ZEN, zearalanone, α-zeralanol, β-zeralanol, α-zearalenol, and β-zearalenol) were simultaneously extracted from edible and medicinal herbs using a group-specific immunoaffinity column (IAC) and then identified by ultra-high-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS). The IAC was prepared by coupling N-hydroxysuccinimide-activated Sepharose 4B Fast Flow gel with two group-specific monoclonal antibodies...
June 7, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Po-Chang Chiang, Karthik Nagapudi, Peter W Fan, Jia Liu
With the rising cost of drug research, "do more with less" has become a new emphasis in the pharmaceutical industry. Consequently, the early analysis of PK/PD, efficacy, and safety parameters for a new drug target is critical for ensuring informed decision-making as soon as possible during the drug discovery process. When ADME properties of compounds are suboptimalwhich is especially true during the early stages of drug discovery, obtaining the desired exposure can be challenging via the most common routes (oral, IV)...
June 14, 2018: Journal of Pharmaceutical Sciences
Ichitaro Abe, Yasushi Teshima, Hidekazu Kondo, Haruka Kaku, Shintaro Kira, Yuki Ikebe, Shotaro Saito, Akira Fukui, Tetsuji Shinohara, Kunio Yufu, Mikiko Nakagawa, Naoki Hijiya, Masatsugu Moriyama, Tatsuo Shimada, Shinji Miyamoto, Naohiko Takahashi
BACKGROUND: Epicardial adipose tissue (EAT) is associated with atrial fibrillation (AF), but the underlying mechanisms remain to be fully elucidated. OBJECTIVE: Using human left atrial appendage (LAA) samples, we examined the interactive relationship between the EAT profile and atrial myocardial fibrosis through histological and biochemical analyses. METHODS: LAA samples were obtained from 59 consecutive AF patients during cardiovascular surgery...
June 13, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Jennifer K Mulligan, Kunal Patel, Tucker Williamson, Nicholas Reaves, William Carroll, Sarah E Stephenson, Peng Gao, Richard R Drake, Benjamin A Neely, Stephen Tomlinson, Rodney J Schlosser, Carl Atkinson
Chronic rhinosinusitis with nasal polyps (CRSwNP) is an inflammatory disease with an unknown etiology. Recent studies have implicated the complement system as a potential modulator of disease immunopathology. We performed proteomic pathway enrichment analysis of differentially increased proteins, and found an enrichment of complement cascade pathways in the nasal mucus of individuals with CRSwNP as compared to control subjects. Sinonasal mucus levels of complement 3 (C3) correlated with worse subjective disease severity, whereas no significant difference in systemic C3 levels could be determined in plasma samples...
June 15, 2018: Mucosal Immunology
Shilpkumar Arora, Sopan Lahewala, Byomesh Tripathi, Varshil Mehta, Varun Kumar, Divya Chandramohan, Alejandro Lemor, Mihir Dave, Nileshkumar Patel, Nilay V Patel, Ghanshyam Palamaner Subash Shantha, Juan Viles-Gonzalez, Abhishek Deshmukh
BACKGROUND: Reducing readmission after catheter ablation (CA) in atrial fibrillation (AF) is important. METHODS AND RESULTS: We utilized National Readmission Data (NRD) 2010-2014. AF was identified by International Classification of Diseases, Ninth Edition, Clinical Modification (ICD-9-CM) diagnostic code 427.31 in the primary field, while first CA of AF was identified via ICD-9 -procedure code 37.34. Any admission within 30 or 90 days of index admission was considered a readmission...
June 15, 2018: Journal of the American Heart Association
V Boilève, J Dreyfus, D Attias, A Scheuble, I Codogno, E Brochet, A Vahanian, D Messika-Zeitoun
BACKGROUND: Mitral annulus (MA) enlargement can be observed in various cardiac conditions but respective influence of left atrial (LA) and left ventricle (LV) size remained unclear. METHODS: In 120 patients who underwent a clinically indicated 3D-transesophageal-echocardiography, 30 atrial fibrillation (AF), 30 secondary mitral regurgitation (SMR), 30 primary myxomatous mitral regurgitation (PMR) and 30 mitral stenosis (MS), we evaluated the association between MA area (MA-area) and LA volume (LAvol) measured using the biplane area-length method, end-diastolic (LVEDV) and end-systolic (LVESV) volumes measured using the biplane Simpson method...
June 5, 2018: International Journal of Cardiology
Nicola Alessio, Caterina Pipino, Domitilla Mandatori, Pamela Di Tomo, Angela Ferone, Marco Marchiso, Mariarosa A B Melone, Gianfranco Peluso, Assunta Pandolfi, Umberto Galderisi
Mesenchymal stromal cells (MSCs) are considered to be an excellent source in regenerative medicine. They contain several cell subtypes, including multipotent stem cells. MSCs are of particular interest as they are currently being tested using cell and gene therapies for a number of human diseases. They represent a rare population in tissues; for this reason, they require, before being transplanted, an in vitro amplification. This process may induce replicative senescence, thus affecting differentiation and proliferative capacities...
June 15, 2018: Journal of Cellular Physiology
Daniel An Mascarenhas, Munish Sharma
Background: We conducted a retrospective analysis to revisit the efficacy of four different commonly used antiarrhythmic drugs (AADs) in a single community hospital setting in the U.S. We used cardiac implantable electronic devices (CIEDs) to continuously monitor the patients for maintenance of sinus rhythm. The CIEDs in our study included insertable cardiac monitor (ICM), permanent pacemaker (PPM) and cardiac resynchronization therapy-defibrillator (CRT-D). The aim was to compare efficacy of commonly used AADs for maintenance of sinus rhythm in atrial fibrillation (AF) patients...
June 2018: Cardiology Research
Yating Zhao, Yao Lu, Yue Qin
BACKGROUND: In patients undergoing atrial fibrillation (AF) ablation, despite uninterrupted oral anticoagulants (OACs) have been recommended, no consensus has emerged regarding to whether uninterrupted novel oral anticoagulants (NOACs) are superior to uninterrupted vitamin K antagonists (VKAs) for the periprocedural antithrombotic management. This meta-analysis aimed to compare the efficacy and safety of uninterrupted NOACs and uninterrupted VKAs in patients undergoing AF ablation. METHODS: Databases were searched for articles published up to March 20, 2018...
June 8, 2018: International Journal of Cardiology
Roelien A M Meijering, Marit Wiersma, Deli Zhang, Eva A H Lanters, Femke Hoogstra-Berends, Jetse Scholma, Sander Diks, XiaoYan Qi, Natasja M S de Groot, Stanley Nattel, Robert H Henning, Bianca J J M Brundel
BACKGROUND: Dysregulation of protein kinase-mediated signaling is an early event in many diseases, including the most common clinical cardiac arrhythmia, atrial fibrillation (AF). Kinomic profiling represents a promising technique to identify candidate kinases. OBJECTIVE: Here we employ kinomic profiling to identify kinases altered in AF remodeling using atrial tissue from a canine AF-model (atrial tachypacing). METHODS: Left atrial tissue obtained in a previous canine study was used for kinome array (containing 1024 kinase pseudo-substrates) analysis...
June 11, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Alexis C Thompson, Casey Feeney, Mark B Kristal
Placental Opioid Enhancing Factor (POEF) is found in amniotic fluid (AF) and placenta. When ingested, it enhances opioid-mediated pain relief. Our laboratory has shown that ingestion of AF specifically enhances the hypoalgesia associated with δ-opioid receptor activation in the brain. The specific biochemical compound in AF responsible for the enhancement of δ-opioid activity is of great interest as an analgesic adjunct for pain but is unknown at this time. Research efforts to isolate and characterize this biochemical compound are hampered by the lack of an algesiometric assay that allows repeated measurement of pain threshold and repeated exposure to δ-opioid receptor activation...
June 11, 2018: Brain Research
Wei-Fong Kao, Sen-Kuang Hou, Chun-Yao Huang, Chun-Chieh Chao, Chung-Chih Cheng, Yi-Jung Chen
Atrial fibrillation (AF) is the most common arrhythmia. The most common diagnostic method, 12-lead electrocardiogram (ECG), can record episodes of arrhythmia from which the type and severity can be determined. The Heart Spectrum Blood Pressure Monitor (P2; OSTAR Meditech Corp., New Taipei City, Taiwan) is used to measure cardiovascular pressure change with fast Fourier transform (FFT) analysis to obtain heart rate frequency variability and accurate blood pressure data. We compared the diagnostic efficacy of the Heart Spectrum Blood Pressure Monitor to a 12-lead ECG (gold standard) for patients with AF...
2018: PloS One
Kerstin Bode, Laura Ueberham, Susan Gawlik, Gerhard Hindricks, Andreas Bollmann
Aims: Ablation of atrial fibrillation (AF) is recommended in the guidelines as a Class Ia/IIa indication. However, associated complications should not be dismissed; specifically, inguinal vascular complications (IVC). Although IVCs are generally considered trivial, they represent an economic burden for the procedure-performing hospital and the patient. Therefore, the ability to monitor and ultimately minimize potential complications is of considerable interest. Methods and results: An economic model was developed to calculate the economic impact for certain IVC-types from a large German single-centre perspective in 2015 and 2016...
June 12, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Jiaqi Li, Huiwen Tan, Juan Huang, Dan Luo, Ying Tang, Ruichao Yu, Hui Huang
RATIONALE: Thyrotropin-secreting adenoma (TSHoma) is rare. Even though the thyrotoxicosis is mild in patients with TSHoma, it is still a rare cause of arrhythmia, ignore of mild disfunction of thyroid function of TSHoma can lead to the delayed diagnosis of pituitary tumor or leading to recurring of complications. Graves' disease is an auto-immue endocrinological disorder. Association of TSHoma and Graves's disease is extremely rare. Coexistence of these two diseases made the diagnosis and treatment complicated...
June 2018: Medicine (Baltimore)
Xiangqun Zhang, Wenli Jing
Atrial fibrillation (AF) is a common cardiac arrhythmia, which is associated with increased cardiovascular morbidity and mortality. microRNA (miRNA/miR)‑122 has been reported to be related with heart diseases, however, the functional role of miR‑122 in atrial fibrillation is unclear. Therefore, the aim of the present study was to investigate the roles of miR‑122 in atrial fibrillation. Male C57BL/6 mice were divided into the following three groups: Control, sham‑operation and AF. Mice in the AF group received transesophageal rapid atrial stimulation for the induction of AF...
June 4, 2018: Molecular Medicine Reports
Ewa Pilichowska-Paszkiet, Jakub Baran, Grażyna Sygitowicz, Agnieszka Sikorska, Sebastian Stec, Piotr Kułakowski, Beata Zaborska
AIM: Left atrial (LA) fibrosis promotes atrial fibrillation (AF), may predict poor radiofrequency catheter ablation (RFCA) outcome, and may be assessed invasively using electroanatomical mapping (EAM). Speckle tracking echocardiography (STE) enables quantitative assessment of LA function. The aim was to assess the relationship between LA fibrosis derived from EAM and LA echocardiographic parameters as well as biomarkers of fibrosis in patients with AF. METHODS: Sixty-six patients (64% males, mean age 56 ± 10) with nonvalvular AF treated with first RFCA were prospectively studied...
June 13, 2018: Echocardiography
Paola Altieri, Maria Bertolotto, Patrizia Fabbi, Elena Sportelli, Manrico Balbi, Francesco Santini, Claudio Brunelli, Marco Canepa, Fabrizio Montecucco, Pietro Ameri
The data presented here are related to the research paper entitled "Thrombin induces protease-activated receptor 1 signaling and activation of human atrial fibroblasts and dabigatran prevents these effects" (Altieri et al., 2018) [1]. Data show that silencing of protease-activated receptor 1 (PAR1) prevents the activation of Fib isolated from atrial appendages of patients without atrial fibrillation (AF), as assessed by immunofluorescence for α-smooth muscle actin (αSMA) and Picro-Sirius red staining...
August 2018: Data in Brief
Gemma Bruera, Francesco Pepe, Umberto Malapelle, Pasquale Pisapia, Antonella Dal Mas, Daniela Di Giacomo, Giuseppe Calvisi, Giancarlo Troncone, Enrico Ricevuto
Background: First line triplet chemotherapy/BEV significantly improved clinical outcome of MCRC. KRAS/NRAS/BRAF mutations were evaluated by next generation sequencing (NGS) in MCRC patients treated with first line FIr-B/FOx. Methods: KRAS exons 2-4 ( KRAS 2-4 ), NRAS 2-4 , BRAF 15 were evaluated in 67 tumours by ION Torrent platform. Mutation detection criteria: >500×sequence coverage (cov); >1% mutant allelic fraction (AF). Clinical outcomes were compared by log-rank...
May 29, 2018: Oncotarget
Ann-Kathrin Schubert, Jeske J Smink, Mirko Arp, Jochen Ringe, Aldemar A Hegewald, Michael Sittinger
A discrimination of the highly specialised annulus fibrosus (AF) and nucleus pulposus (NP) cells in the mature human intervertebral disc (IVD) is thus far still not possible in a reliable way. The aim of this study was to identify molecular markers that distinguish AF and NP cells in human disc tissue using microarray analysis as a screening tool. AF and NP samples were obtained from 28 cervical discs. First, all samples underwent quality sorting using two novel scoring systems for small-sized disc tissue samples including macroscopic, haptic and histological evaluation...
June 13, 2018: International Journal of Molecular Sciences
Barbara Falatová, Marta Ferreiro-González, Carlos Martín-Alberca, Danica Kačíková, Štefan Galla, Miguel Palma, Carmelo G Barroso
In arson attacks the detection of ignitable liquid residues (ILRs) at fire scenes provides key evidence since ignitable liquids, such as gasoline, are commonly used to initiate the fire. In most forensic laboratories gas chromatography-mass spectrometry is employed for the analysis of ILRs. When a fire occurs, suppression agents are used to extinguish the fire and, before the scene is investigated, the samples at the scene are subjected to a variety of processes such as weathering, which can significantly modify the chemical composition and thus lead to erroneous conclusions...
June 14, 2018: Sensors
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