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https://www.readbyqxmd.com/read/28333993/integrated-transcriptomic-and-proteomic-analysis-of-the-molecular-cargo-of-extracellular-vesicles-derived-from-porcine-adipose-tissue-derived-mesenchymal-stem-cells
#1
Alfonso Eirin, Xiang-Yang Zhu, Amrutesh S Puranik, John R Woollard, Hui Tang, Surendra Dasari, Amir Lerman, Andre J van Wijnen, Lilach O Lerman
BACKGROUND: Mesenchymal stromal/stem cell (MSC) transplantation is a promising therapy for tissue regeneration. Extracellular vesicles (EVs) released by MSCs act as their paracrine effectors by delivering proteins and genetic material to recipient cells. To assess how their cargo mediates biological processes that drive their therapeutic effects, we integrated miRNA, mRNA, and protein expression data of EVs from porcine adipose tissue-derived MSCs. METHODS: Simultaneous expression profiles of miRNAs, mRNAs, and proteins were obtained by high-throughput sequencing and LC-MS/MS proteomic analysis in porcine MSCs and their daughter EVs (n = 3 each)...
2017: PloS One
https://www.readbyqxmd.com/read/28324852/a-novel-water-quality-data-analysis-framework-based-on-time-series-data-mining
#2
Weihui Deng, Guoyin Wang
The rapid development of time-series data mining provides an emerging method for water resource management research. In this paper, based on the time-series data mining methodology, we propose a novel and general analysis framework for water quality time-series data. It consists of two parts: implementation components and common tasks of time-series data mining in water quality data. In the first part, we propose to granulate the time series into several two-dimensional normal clouds and calculate the similarities in the granulated level...
March 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28318483/automated-atom-by-atom-three-dimensional-3d-reconstruction-of-field-ion-microscopy-data
#3
Michal Dagan, Baptiste Gault, George D W Smith, Paul A J Bagot, Michael P Moody
An automated procedure has been developed for the reconstruction of field ion microscopy (FIM) data that maintains its atomistic nature. FIM characterizes individual atoms on the specimen's surface, evolving subject to field evaporation, in a series of two-dimensional (2D) images. Its unique spatial resolution enables direct imaging of crystal defects as small as single vacancies. To fully exploit FIM's potential, automated analysis tools are required. The reconstruction algorithm developed here relies on minimal assumptions and is sensitive to atomic coordinates of all imaged atoms...
March 20, 2017: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/28306162/analysis-of-the-effects-of-several-decalcifying-agents-alone-and-in-combination-with-sodium-hypochlorite-on-the-chemical-composition-of-dentine
#4
T Tartari, L Bachmann, R F Zancan, R R Vivan, M A H Duarte, C M Bramante
AIM: To investigate the effects of several decalcifying agents alone and in combination with sodium hypochlorite (NaOCl) on the organic and inorganic components of dentine using Attenuated Total Reflectance in Fourier Transform Infrared Spectroscopy (ATR-FTIR). METHODOLOGY: Dentine slices from bovine teeth were submitted to (n=5): 0.9% saline, 9% and 18% etidronic acid (HEDP), 5% and 10% tetrasodium EDTA (EDTANa4 ), 17% trisodium EDTA (EDTAHNa3 ), and 0.5% and 2...
March 17, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28286488/evaluation-of-mother-child-agreement-and-factorial-structures-of-the-scared-questionnaire-in-an-italian-clinical-sample
#5
Simona Scaini, Anna Ogliari, Ludovica De Carolis, Laura Bellodi, Clelia Di Serio, Chiara Brombin
Background: A great part of the literature has confirmed the importance of both child and parents reports as source of factual information, especially for childhood emotional syndromes. In our study we aimed at: (i) calculating mother-child agreement and (ii) evaluating factorial structure of the Screen for Child Anxiety Related Emotional Disorders (SCARED) questionnaire in an Italian clinical sample. The novelty of this contribution is two-fold: first, from a clinical point of view, we investigated the parent-child agreement level and examined separately the factorial structures of both parent and child versions of the SCARED for the first time in an Italian clinical sample...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28286320/earwax-a-neglected-body-secretion-or-a-step-ahead-in-clinical-diagnosis-a-pilot-study
#6
Engy Shokry, Anselmo Elcana de Oliveira, Melissa Ameloti Gomes Avelino, Mariana Moreira de Deus, Nelson Roberto Antoniosi Filho
This work combines the advantages of volatile metabolites profiling as a young growing research field with a non-invasive sampling technique using earwax "a neglected body secretion" for detection and monitoring of biomarkers for diabetes mellitus (types 1 and 2). Earwax samples were collected from 26 diabetic patients of both types, analyzed by headspace gas chromatography mass spectrometry and confronted to the volatile earwax composition of 33 healthy individuals. Data mining analysis was conducted using different models to discriminate the healthy individuals from the diabetic patients and to discriminate between both types of diabetes as well...
March 9, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28284133/monitoring-and-source-apportionment-of-trace-elements-in-pm2-5-implications-for-local-air-quality-management
#7
Yueyan Li, Miao Chang, Shanshan Ding, Shiwen Wang, Dun Ni, Hongtao Hu
Fine particulate matter (PM2.5) samples were collected simultaneously every hour in Beijing between April 2014 and April 2015 at five sites. Thirteen trace elements (TEs) in PM2.5 were analyzed by online X-ray fluorescence (XRF). The annual average PM2.5 concentrations ranged from 76.8 to 102.7 μg m(-3). TEs accounted for 5.9%-8.7% of the total PM2.5 mass with Cl, S, K, and Si as the most dominant elements. Spearman correlation coefficients of PM2.5 or TE concentrations between the background site and other sites showed that PM2...
March 8, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28282637/novel-liquid-chromatography-method-based-on-linear-weighted-regression-for-the-fast-determination-of-isoprostane-isomers-in-plasma-samples-using-sensitive-tandem-mass-spectrometry-detection
#8
Justyna Aszyk, Jacek Kot, Yurii Tkachenko, Michał Woźniak, Anna Bogucka-Kocka, Agata Kot-Wasik
A simple, fast, sensitive and accurate methodology based on a LLE followed by liquid chromatography-tandem mass spectrometry for simultaneous determination of four regioisomers (8-iso prostaglandin F2α, 8-iso-15(R)-prostaglandin F2α, 11β-prostaglandin F2α, 15(R)-prostaglandin F2α) in routine analysis of human plasma samples was developed. Isoprostanes are stable products of arachidonic acid peroxidation and are regarded as the most reliable markers of oxidative stress in vivo. Validation of method was performed by evaluation of the key analytical parameters such as: matrix effect, analytical curve, trueness, precision, limits of detection and limits of quantification...
March 1, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28280487/candida-albicans-mycofilms-support-staphylococcus-aureus-colonization-and-enhances-miconazole-resistance-in-dual-species-interactions
#9
Ryan Kean, Ranjith Rajendran, Jennifer Haggarty, Eleanor M Townsend, Bryn Short, Karl E Burgess, Sue Lang, Owain Millington, William G Mackay, Craig Williams, Gordon Ramage
Polymicrobial inter-kingdom biofilm infections represent a clinical management conundrum. The presence of co-isolation of bacteria and fungi complicates the ability to routinely administer single antimicrobial regimens, and synergy between the microorganisms influences infection severity. We therefore investigated the nosocomial pathogens Staphylococcus aureus and Candida albicans with respect to antimicrobial intervention. We characterized the interaction using biofilm assays and evaluated the effect of miconazole treatment using in vitro and in vivo assays...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28252936/fluorescence-approach-for-the-determination-of-fluorescent-dissolved-organic-matter
#10
Chen Qian, Long-Fei Wang, Wei Chen, Yan-Shan Wang, Xiao-Yang Liu, Hong Jiang, Han-Qing Yu
Excitation-emission matrix (EEM) fluorescence spectroscopy coupled with parallel factor (PARAFAC) analysis has been widely applied to characterize dissolved organic matter (DOM) in aquatic and terrestrial systems. However, its application in environmental samples is limited because PARAFAC is not able to handle nontrilinear EEM data, leading to the overestimated number of components and incorrect decomposition results. In this work, a new method, parallel factor framework-clustering analysis (PFFCA), is proposed to resolve this problem...
March 14, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28252174/molecular-marker-based-genetic-diversity-analysis-of-scantly-studied-brazilian-accessions-of-a-medicinal-plant-morinda-citrifolia-l-noni
#11
P N Bordallo, A M R Monteiro, J A Sousa, F A S Aragão
Morinda citrifolia L., commonly known as noni, has been used for the treatment of various diseases for over two centuries. It was introduced and widely disseminated in Brazil because of its high market value and ease of adaptation to the soil and climatic conditions of the country. The aim of this study was to estimate the genetic variability of noni accessions from the collection of Embrapa Agroindústria Tropical in Brazil. We evaluated 36 plants of the 13 accessions of noni from the germplasm collection of M...
February 23, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28248570/the-diacetyl-exposed-human-airway-epithelial-secretome-new-insights-into-flavoring-induced-airways-disease
#12
David M Brass, William M Gwinn, Ashlee M Valente, Francine L Kelly, Christie D Brinkley, Andrew E Nagler, M Arthur Moseley, Daniel L Morgan, Scott M Palmer, Matthew W Foster
Bronchiolitis obliterans (BO) is an increasingly important lung disease characterized by fibroproliferative airway lesions and decrements in lung function. Occupational exposure to the artificial food flavoring ingredient diacetyl, commonly used to impart a buttery flavor to microwave popcorn, has been associated with BO development. In the occupational setting, diacetyl vapor is first encountered by the airway epithelium. To better understand the effects of diacetyl vapor on the airway epithelium we used an unbiased proteomic approach to characterize both the apical and basolateral secretomes of air liquid interface cultures of primary human airway epithelial cells from four unique donors after exposure to an occupationally relevant ~1100 ppm of diacetyl vapor or PBS as a control on alternating days...
March 1, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28224246/comparison-of-veterinary-drug-residue-results-in-animal-tissues-by-ultrahigh-performance-liquid-chromatography-coupled-to-triple-quadrupole-or-quadrupole-time-of-flight-tandem-mass-spectrometry-after-different-sample-preparation-methods-including-use-of-a-commercial
#13
Tarun Anumol, Steven J Lehotay, Joan Stevens, Jerry Zweigenbaum
Veterinary drug residues in animal-derived foods must be monitored to ensure food safety, verify proper veterinary practices, enforce legal limits in domestic and imported foods, and for other purposes. A common goal in drug residue analysis in foods is to achieve acceptable monitoring results for as many analytes as possible, with higher priority given to the drugs of most concern, in an efficient and robust manner. The U.S. Department of Agriculture has implemented a multiclass, multi-residue method based on sample preparation using dispersive solid phase extraction (d-SPE) for cleanup and ultrahigh-performance liquid chromatography-tandem quadrupole mass spectrometry (UHPLC-QQQ) for analysis of >120 drugs at regulatory levels of concern in animal tissues...
February 21, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28218403/unveiling-gene-trait-relationship-by-cross-platform-meta-analysis-on-chinese-hamster-ovary-cell-transcriptome
#14
Liang Zhao, Hsu-Yuan Fu, Ravali Raju, Nandita Vishwanathan, Wei-Shou Hu
In the past few years, transcriptome analysis has been increasingly employed to better understand the physiology of Chinese hamster ovary (CHO) cells at a global level. As more transcriptome data accumulated, meta-analysis on data sets collected from various sources can potentially provide better insights on common properties of those cells. Here, we performed meta-analysis on transcriptome data of different CHO cell lines obtained using NimbleGen or Affymetrix microarray platforms. Hierarchical clustering, non-negative matrix factorization (NMF) analysis, and principal component analysis (PCA) accordantly showed the samples were clustered into two groups: one consists of adherent cells in serum-containing medium, and the other suspension cells in serum-free medium...
February 20, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28192965/advantages-of-data-fusion-first-multivariate-curve-resolution-analysis-of-fused-liquid-chromatographic-second-order-data-with-dual-diode-array-fluorescent-detection
#15
Rocío B Pellegrino Vidal, Gabriela A Ibañez, Graciela M Escandar
For the first time, liquid chromatography-diode array detection (LC-DAD) and liquid-chromatography fluorescence detection (LC-FLD) second-order data, collected in a single chromatographic run, were fused and chemometrically processed for the quantitation of coeluting analytes. Two different experimental mixtures composed of fluorescent and nonfluorescent endocrine disruptors were analyzed. Adequate pretreatment of the matrices before their fusion was crucial to attain reliable results. Multivariate curve resolution-alternating least-squares (MCR-ALS) was applied to LC-DAD, LC-FLD, and fused LC-DAD-FLD data...
February 15, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28181144/novel-bone-metabolism-associated-hormones-the-importance-of-the-pre-analytical-phase-for-understanding-their-physiological-roles
#16
REVIEW
Giovanni Lombardi, Mosè Barbaro, Massimo Locatelli, Giuseppe Banfi
The endocrine function of bone is now a recognized feature of this tissue. Bone-derived hormones that modulate whole-body homeostasis, are being discovered as for the effects on bone of novel and classic hormones produced by other tissues become known. Often, however, the data regarding these last generation bone-derived or bone-targeting hormones do not give about a clear picture of their physiological roles or concentration ranges. A certain degree of uncertainty could stem from differences in the pre-analytical management of biological samples...
February 8, 2017: Endocrine
https://www.readbyqxmd.com/read/28176530/effects-of-castration-on-penile-extracellular-matrix-morphology-in-domestic-cats
#17
Nathalia Cs Borges, Marco A Pereira-Sampaio, Vivian Alves Pereira, Marcelo Abidu-Figueiredo, Maurício Alves Chagas
Objectives This study was undertaken to verify the possible modifications caused by hormonal deprivation in the extracellular matrix in the penises of neutered cats. Methods Twenty-seven penises from domestic shorthair cats were collected: 14 samples from intact cats and 13 from neutered cats. Sections were stained with Weigert's resorcin-fuchsin, hematoxylin and eosin, and picrosirius red. Histomorphometric analysis was performed using light microscopy and image analysis software. The following parameters were analyzed: density of the elastic fibers and collagen fibers in the corpus spongiosum; density of the elastic fibers in the tunica albuginea of the corpus cavernosum and the tunica albuginea of the corpus spongiosum; luminal area of the urethra; area of the corpus spongiosum; area of the corpus cavernosum; and thickness of the urethral epithelium...
February 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28173811/marrow-adipocytes-inhibit-the-differentiation-of-mesenchymal-stem-cells-into-osteoblasts-via-suppressing-bmp-signaling
#18
Basem M Abdallah
BACKGROUND: Reduced bone formation is associated with increased bone marrow fat in many bone-loss related diseases including aging, post-menopause, and anorexia nervosa. Several lines of evidence suggested the regulation of osteogenesis and adipogenesis of the bone marrow-derived mesenchymal (skeletal) stem cells (BMSCs) by paracrine mediators. This study aimed to investigate the impact of adipocytes-secreted factors on the cell proliferation and osteoblast differentiation of BMSCs. METHODS: Serum free conditioned medium (CM-Adipo) was collected from stromal ST2 cells-derived adipocytes...
February 7, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28169420/parents-and-informal-caregivers-views-and-experiences-of-communication-about-routine-childhood-vaccination-a-synthesis-of-qualitative-evidence
#19
REVIEW
Heather Mr Ames, Claire Glenton, Simon Lewin
BACKGROUND: Childhood vaccination is an effective way to prevent serious childhood illnesses, but many children do not receive all the recommended vaccines. There are various reasons for this; some parents lack access because of poor quality health services, long distances or lack of money. Other parents may not trust vaccines or the healthcare workers who provide them, or they may not see the need for vaccination due to a lack of information or misinformation about how vaccinations work and the diseases they can prevent...
February 7, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28158941/high-throughput-quantitation-of-proline-betaine-in-foods-and-suitability-as-a-valid-biomarker-for-citrus-consumption
#20
Roman Lang, Tatjana Lang, Matthias Bader, Anja Beusch, Verena Schlagbauer, Thomas Hofmann
Proline betaine has been proposed as a candidate dietary biomarker for citrus intake. To validate its suitability as a dietary biomarker and to gain insight into the range of this per-methylated amino acid in foods and beverages, a quick and accurate stable isotope dilution assay was developed for quantitative high-throughput HILIC-MS/MS screening of proline betaine in foods and urine after solvent-mediated matrix precipitation. Quantitative analysis of a variety of foods confirmed substantial amounts of proline betaine in citrus juices (140-1100 mg/L) and revealed high abundance in tubers of the vegetable Stachys affinis, also known as Chinese artichocke (∼700 mg/kg)...
February 16, 2017: Journal of Agricultural and Food Chemistry
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