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Analysis matrix data collection

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https://www.readbyqxmd.com/read/28811542/identification-replication-and-characterization-of-epigenetic-remodelling-in-the-aging-genome-a-cross-population-analysis
#1
Shuxia Li, Lene Christiansen, Kaare Christensen, Torben A Kruse, Paul Redmond, Riccardo E Marioni, Ian J Deary, Qihua Tan
Aging is a complex biological process regulated by multiple cellular pathways and molecular mechanisms including epigenetics. Using genome-wide DNA methylation data measured in a large collection of Scottish old individuals, we performed discovery association analysis to identify age-methylated CpGs and replicated them in two independent Danish cohorts. The double-replicated CpGs were characterized by distribution over gene regions and location in relation to CpG islands. The replicated CpGs were further characterized by involvement in biological pathways to study their functional implications in aging...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811047/development-of-an-item-bank-to-measure-factual-disease-and-treatment-related-knowledge-of-rheumatoid-arthritis-patients-in-the-treat-to-target-era
#2
Marieke J de Jonge, Martijn A H Oude Voshaar, Anita M P Huis, Mart A F J van de Laar, Marlies E J L Hulscher, Piet L C M van Riel
OBJECTIVE: To develop a Disease and treatment associated Knowledge in RA item bank (DataK-RA) based on item response theory. METHODS: Initial items were developed from a systematic review. Rheumatology professionals identified relevant content trough a RAND modified Delphi scoring procedure and consensus meeting. RA patients provided additional content trough a focus group. Patients and professionals rated readability, feasibility and comprehensiveness of resulting items...
July 21, 2017: Patient Education and Counseling
https://www.readbyqxmd.com/read/28809146/mycobacterium-talmoniae-sp-nov-a-slowly-growing-mycobacterium-isolated-from-human-respiratory-samples
#3
Rebecca M Davidson, Mary Ann DeGroote, Jamie L Marola, Sarah Buss, Victoria Jones, Michael R McNeil, Alison G Freifeld, L Elaine Epperson, Nabeeh A Hasan, Mary Jackson, Peter C Iwen, Max Salfinger, Michael Strong
A novel slowly growing, non-chromogenic species of the class Actinobacteria was isolated from a human respiratory sample in Nebraska, USA, in 2012. Analysis of the internal transcribed spacer sequence supported placement into the genus Mycobacterium with high sequence similarity to a previously undescribed strain isolated from a patient respiratory sample from Oregon, USA, held in a collection in Colorado, USA, in 2000. The two isolates were subjected to phenotypic testing and whole genome sequencing and found to be indistinguishable...
August 15, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28797469/multivariate-statistical-process-control-in-product-quality-review-assessment%C3%A2-%C3%A2-a-case-study
#4
M Kharbach, Y Cherrah, Y Vander Heyden, A Bouklouze
According to the Food and Drug Administration and the European Good Manufacturing Practices (GMP) guidelines, Annual Product Review (APR) is a mandatory requirement in GMP. It consists of evaluating a large collection of qualitative or quantitative data in order to verify the consistency of an existing process. According to the Code of Federal Regulation Part 11 (21 CFR 211.180), all finished products should be reviewed annually for the quality standards to determine the need of any change in specification or manufacturing of drug products...
August 7, 2017: Annales Pharmaceutiques Françaises
https://www.readbyqxmd.com/read/28793224/dynamics-of-tissue-induced-alignment-of-fibrous-extracellular-matrix
#5
Alexandra S Piotrowski-Daspit, Bryan A Nerger, Abraham E Wolf, Sankaran Sundaresan, Celeste M Nelson
Aligned fibers of extracellular matrix (ECM) affect the direction, efficiency, and persistence of migrating cells. To uncover the mechanisms by which multicellular tissues align their surrounding ECM before migration, we used an engineered three-dimensional culture model to investigate the dynamics of ECM alignment around tissues of defined geometry. Analysis of ECM alignment over time revealed that tissues rapidly reorganize their surrounding matrix, with a characteristic time that depends on the type of cell and the initial tissue geometry...
August 8, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28791895/cluster-a-new-application-for-spatial-analysis-of-pixelated-data-for-epiphytotics
#6
Scot Nelson, Iulian Corcoja, Sarah Jane Pethybridge
Spatial analysis of epiphytotics is essential to develop and test hypotheses about pathogen ecology, disease dynamics, and to optimize plant disease management strategies. Data collection for spatial analysis requires substantial investment in time to depict patterns in various frames and hierarchies. We developed a new approach for spatial analysis of pixelated data in digital imagery and incorporated the method in a stand-alone desktop application called Cluster. The user isolates target entities (clusters) by designating up to 24 pixel colors as nontargets and moves a threshold slider to visualize the targets...
August 9, 2017: Phytopathology
https://www.readbyqxmd.com/read/28774617/monitoring-and-factors-affecting-levels-of-airborne-and-water-bromoform-in-chlorinated-seawater-swimming-pools
#7
Jean-Luc Boudenne, Julien Parinet, Carine Demelas, Tarek Manasfi, Bruno Coulomb
Water and air quality of eight seawater swimming pools using chlorine disinfection was measured during four sampling campaigns, spread on one full-year, and in four thalassotherapy centers located in Southeast of France. Concentrations of trihalomethanes (THMs) in air and in water as well as concentrations of parameters, including nonpurgeable organic carbon (NPOC), free residual chlorine (Clf), pH, Kjeldhal Nitrogen (KN), salinity, conductivity, bromide ions and, water and air temperature, were measured. Water and air samples were collected in triplicates morning - at the opening of the pools -, noon and night - at the closing of the pools -, in summer and winter...
August 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28766526/-the-development-of-the-method-for-the-determination-of-the-low-molecular-weight-alcohol-content-in-the-specimens-of-the-biological-materials
#8
D A Afonin, S V Khatuntsev, O V Vinogradova, T V Gorbacheva
The objective of the present study was the development and metrological attestation of the method for the determination of concentrations of low-molecular weight (C1-C4) alcohols and acetone in the biological materials, such as urine and blood including partially dehydrated blood. The method is based on the chromatographic analysis of the equilibrium vapour phase with the use of the static headspace autosampler. The calculations were carried out making use of the results obtained with the application of propanol-1 as the internal standard...
2017: Sudebno-meditsinskaia Ekspertiza
https://www.readbyqxmd.com/read/28765623/lagrangian-dynamical-geography-of-the-gulf-of-mexico
#9
P Miron, F J Beron-Vera, M J Olascoaga, J Sheinbaum, P Pérez-Brunius, G Froyland
We construct a Markov-chain representation of the surface-ocean Lagrangian dynamics in a region occupied by the Gulf of Mexico (GoM) and adjacent portions of the Caribbean Sea and North Atlantic using satellite-tracked drifter trajectory data, the largest collection so far considered. From the analysis of the eigenvectors of the transition matrix associated with the chain, we identify almost-invariant attracting sets and their basins of attraction. With this information we decompose the GoM's geography into weakly dynamically interacting provinces, which constrain the connectivity between distant locations within the GoM...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28765595/integration-of-mirna-and-mrna-expression-profiles-reveals-microrna-regulated-networks-during-muscle-wasting-in-cardiac-cachexia
#10
Leonardo N Moraes, Geysson J Fernandez, Ivan J Vechetti-Júnior, Paula P Freire, Rodrigo W A Souza, Rolando A R Villacis, Silvia R Rogatto, Patricia P Reis, Maeli Dal-Pai-Silva, Robson F Carvalho
Cardiac cachexia (CC) is a common complication of heart failure (HF) associated with muscle wasting and poor patient prognosis. Although different mechanisms have been proposed to explain muscle wasting during CC, its pathogenesis is still not understood. Here, we described an integrative analysis between miRNA and mRNA expression profiles of muscle wasting during CC. Global gene expression profiling identified 1,281 genes and 19 miRNAs differentially expressed in muscle wasting during CC. Several of these deregulated genes are known or putative targets of the altered miRNAs, including miR-29a-3p, miR-29b-3p, miR-210-5p, miR-214, and miR-489...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28764794/exploration-of-knowledge-and-understanding-in-patients-with-primary-adrenal-insufficiency-a-mixed-methods-study
#11
L M Shepherd, A A Tahrani, C Inman, W Arlt, D M Carrick-Sen
BACKGROUND: Primary adrenal insufficiency (PAI) is a rare and severe condition requiring lifelong steroid replacement. During acute illness or stressful events, it is important to appropriately adjust glucocorticoid dose; failure to do so may lead to an adrenal crisis. The aim of the study was to explore patients PAI knowledge and understanding of the condition, steroid replacement adjustment during acute illness or stress and provided education. METHODS: Ten adult patients with PAI were purposefully recruited from two hospitals in a tertiary NHS Trust in England, UK...
August 1, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28762581/remote-detection-of-explosives-using-field-asymmetric-ion-mobility-spectrometer-installed-on-multicopter
#12
Yury Kostyukevich, Denis Efremov, Vladimir Ionov, Eugene Kukaev, Eugene Nikolaev
The detection of explosives and drugs in hard-to-reach places is a considerable challenge. We report the development and initial experimental characterization of the air analysis system that includes Field Asymmetric Ion Mobility Spectrometer (FAIMS), array of the semiconductor gas sensors and is installed on multicopter. The system was developed based on the commercially available DJI Matrix 100 platform. For data collection and communication with operator, the special compact computer (Intel Compute Stick) was installed onboard...
August 1, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28753676/intraday-seasonalities-and-nonstationarity-of-trading-volume-in-financial-markets-collective-features
#13
Michelle B Graczyk, Sílvio M Duarte Queirós
Employing Random Matrix Theory and Principal Component Analysis techniques, we enlarge our work on the individual and cross-sectional intraday statistical properties of trading volume in financial markets to the study of collective intraday features of that financial observable. Our data consist of the trading volume of the Dow Jones Industrial Average Index components spanning the years between 2003 and 2014. Computing the intraday time dependent correlation matrices and their spectrum of eigenvalues, we show there is a mode ruling the collective behaviour of the trading volume of these stocks whereas the remaining eigenvalues are within the bounds established by random matrix theory, except the second largest eigenvalue which is robustly above the upper bound limit at the opening and slightly above it during the morning-afternoon transition...
2017: PloS One
https://www.readbyqxmd.com/read/28749626/salivary-mmp-1-mmp-2-mmp-3-and-mmp-13-levels-in-patients-with-oral-lichen-planus-and-squamous-cell-carcinoma
#14
Tahereh Nosratzehi, Ebrahim Alijani, Marziyeh Moodi
The aim of present study was to evaluate salivary matrix metalloproteinase-1 (MMP-1), MMP-2, MMP-3 and MMP-13 levels in patients with oral lichen planus (OLP) and squamous cell carcinomas (SCC) as well as in healthy controls. Thirty cases of OLP (bilateral lesions, papular and reticular lesions, and Wickham lines) clinically and histopathologically (group A), 30 with oral SCCs (group B), and 30 with no history of oral cancer, other lesions or lichen planus (group C) were enrolled at the Department of Oral Medicine School of Dentistry, Zahedan, Iran...
July 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28728145/extracellular-dna-contributes-to-dental-biofilm-stability
#15
Sebastian Schlafer, Rikke L Meyer, Irene Dige, Viduthalai R Regina
Extracellular DNA (eDNA) is a major matrix component of many bacterial biofilms. While the presence of eDNA and its role in biofilm stability have been demonstrated for several laboratory biofilms of oral bacteria, there is no data available on the presence and function of eDNA in in vivo grown dental biofilms. This study aimed to determine whether eDNA was part of the matrix in biofilms grown in situ in the absence of sucrose and whether treatment with DNase dispersed biofilms grown for 2.5, 5, 7.5, 16.5, or 24 h...
July 21, 2017: Caries Research
https://www.readbyqxmd.com/read/28722240/an-mri-hyperintense-acute-reperfusion-marker-is-related-to-elevated-peripheral-monocyte-count-in-acute-ischemic-stroke
#16
Zurab Nadareishvili, Marie Luby, Richard Leigh, Jignesh Shah, John K Lynch, Amie W Hsia, Richard T Benson, Lawrence L Latour
BACKGROUND AND PURPOSE: Blood-brain barrier (BBB) disruption detected on magnetic resonance imaging (MRI) in acute ischemic stroke as a hyperintense acute reperfusion marker (HARM) is associated with upregulation of matrix metalloproteinase-9 (MMP-9). Although activated leukocytes, including monocytes, are the main source of MMPs, limited data exist to support relationship between leukocyte activation and BBB disruption in patients with acute ischemic stroke. The goal of this study is to investigate the relationship between neutrophils, lymphocytes, and monocytes with BBB disruption detected as HARM (+) in patients with acute ischemic stroke...
July 19, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28720231/overcoming-diabetes-related-stigma-in-iran-a-participatory-action-research
#17
Mehri Doosti-Irani, Samereh Abdoli, Soroor Parvizy, Naimeh Seyed Fatemi
OBJECTIVE: The study aimed to overcome diabetes-related stigma in individuals living with type 1 Diabetes Mellitus (T1DM) in Iran. The study proposed that if individuals with T1DM and the community work together to develop and implement an anti-stigma program, diabetes-related stigma in individuals with T1DM can be reduced. RESEARCH DESIGN AND METHOD: This study was conducted as a participatory action research study based on Kemmis and McTaggert's (2000) Model to design and implement an anti-stigma program for T1DM...
August 2017: Applied Nursing Research: ANR
https://www.readbyqxmd.com/read/28715559/interferon-%C3%AE-treatment-of-human-laryngotracheal-stenosis-derived-fibroblasts
#18
Kevin Motz, Idris Samad, Linda X Yin, Michael K Murphy, Madhavi Duvvuri, Dacheng Ding, Alexander T Hillel
Importance: Laryngotracheal stenosis (LTS) is a fibroproliferative disorder of the glottis, subglottis, and trachea. In models of fibrosis from other organ systems, the CD4+ T-cell response has been shown to regulate extracellular matrix deposition. Specifically, helper T cell 2 (TH2) promotes fibrosis, whereas TH1 and associated cytokines have been shown to be antifibrotic. However, this antifibrotic effect of the TH1 response has not been demonstrated in LTS. Objective: To determine whether the TH1 cytokine interferon-γ inhibits the function of LTS-derived fibroblasts in vitro...
July 13, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28703288/a-comparative-proteomic-analysis-of-blood-serum-for-developmental-stages-in-pigs
#19
K Srikanth, E Lee, A Kwon, J Shin, H Chung
This study aimed to differentiate genes at developmental stages of pigs from 0 to 150 days of age, to build up a protein database and to find candidate genetic markers for growth traits. The analysis of two-dimensional electrophoresis and matrix-assisted laser-desorption/ionization mass spectrometry separated 252 protein segments. After successfully blasting the peptide sequences, the analysis confirmed 37 differentially expressed proteins that increased from birth to 150 days of age (type A), whereas the type B proteins presented the inverse pattern...
July 12, 2017: Animal Genetics
https://www.readbyqxmd.com/read/28701310/deletion-of-%C3%AE-1-integrin-in-collecting-duct-principal-cells-leads-to-tubular-injury-and-renal-medullary-fibrosis
#20
Fahmy A Mamuya, Dongping Xie, Lei Lei, Ming Huang, Kenji Tsuji, Diane E Capen, Baoxue Yang, Ralph Weissleder, Teodor G Păunescu, Hua Jenny Lu
The renal collecting duct (CD) contains two major cell types, intercalated (ICs) and principal cells (PCs). A previous report showed that deletion of β-1 integrin in the entire renal CD causes defective CD morphogenesis resulting in kidney dysfunction. However, subsequent deletion of β-1 integrin specifically in ICs, and PCs respectively did not cause any morphological defects in the CDs. The discrepancy between these studies prompts us to reinvestigate the role of β-1 integrin in CD cells, specifically in the PCs...
July 12, 2017: American Journal of Physiology. Renal Physiology
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