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https://www.readbyqxmd.com/read/28551384/cpeb4-immunohistochemical-expression-is-associated-to-prognosis-in-stage-iv-colorectal-carcinoma
#1
D Cortés-Guiral, C Pastor-Iodate, C Díaz Del Arco, L Del Puerto-Nevado, M J Fernández-Aceñero
The cytoplasmic polyadenylation element binding protein 4 (CPEB4) is a RNA binding protein and translational regulator. It has been associated with tumor growth, vascularization and invasion and with tumor progression in breast, pancreas and lung carcinomas. To the best of our knowledge only one previous report has analyzed the prognostic value of CPEB4 in an experimental model of colorectal carcinoma. We have reviewed the files of patients with stage IV colorectal carcinoma metastatic to the liver. All the patients had received chemotherapy followed by hepatic metastasis resection and subsequent resection of the colon (liver-first approach)...
May 6, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28551152/global-approach-for-the-validation-of-an-in-line-raman-spectroscopic-method-to-determine-the-api-content-in-real-time-during-a-hot-melt-extrusion-process
#2
L Netchacovitch, J Thiry, C De Bleye, E Dumont, J Cailletaud, P-Y Sacré, B Evrard, Ph Hubert, E Ziemons
Since the Food and Drug Administration (FDA) published a guidance based on the Process Analytical Technology (PAT) approach, real-time analyses during manufacturing processes are in real expansion. In this study, in-line Raman spectroscopic analyses were performed during a Hot-Melt Extrusion (HME) process to determine the Active Pharmaceutical Ingredient (API) content in real-time. The method was validated based on a univariate and a multivariate approach and the analytical performances of the obtained models were compared...
August 15, 2017: Talanta
https://www.readbyqxmd.com/read/28551132/differentiation-of-the-six-dimethoxypyrovalerone-regioisomers-gc-ms-gc-ms-ms-and-gc-ir
#3
Younis Abiedalla, Jack DeRuiter, Forrest Smith, C Randall Clark
Multiple and complementary analytical methods are often necessary for the identification of a specific compound from a series of closely related structural isomers. Gas chromatography-mass spectrometry (GC-MS), gas chromatography-product ion mass spectrometry (GC-MS/MS) and gas chromatography-infrared spectroscopy (GC-IR) were used to differentiate between the six dimethoxypyrrovalerone (DMPV) regioisomers. The six regioisomeric aminoketones were separated on a 50% phenyl stationary phase and the elution order is related to the positioning of substituents on the aromatic ring...
August 15, 2017: Talanta
https://www.readbyqxmd.com/read/28551119/advanced-predictive-methods-for-wine-age-prediction-part-ii-a-comparison-study-of-multiblock-regression-approaches
#4
Maria P Campos, Ricardo Sousa, Ana C Pereira, Marco S Reis
In this article, we extend the scope of the first paper of the sequel, which was dedicated to the analysis of advanced single-block regression methods (Rendall et al., 2016) [1], to the class of multiblock regression approaches. The datasets contemplated for developing the multiblock approaches are the same as in the former publication: volatile, polyphenols, organic acids composition and the UV-Vis spectra. The context is still the prediction of the ageing time of one of finest Portuguese fortified wines, the Madeira Wine, but now the data collected from the different analytical sources is explored simultaneously, in a more structured and informative way, through multiblock methodologies...
August 15, 2017: Talanta
https://www.readbyqxmd.com/read/28551109/early-visual-analysis-tool-using-magnetoencephalography-for-treatment-and-recovery-of-neuronal-dysfunction
#5
Waqas Rasheed, Yee Yik Neoh, Nor Hisham Bin Hamid, Faruque Reza, Zamzuri Idris, Tong Boon Tang
Functional neuroimaging modalities play an important role in deciding the diagnosis and course of treatment of neuronal dysfunction and degeneration. This article presents an analytical tool with visualization by exploiting the strengths of the MEG (magnetoencephalographic) neuroimaging technique. The tool automates MEG data import (in tSSS format), channel information extraction, time/frequency decomposition, and circular graph visualization (connectogram) for simple result inspection. For advanced users, the tool also provides magnitude squared coherence (MSC) values allowing personalized threshold levels, and the computation of default model from MEG data of control population...
May 11, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28551076/relationships-between-sexual-orientation-weight-and-health-in-a-population-based-sample-of-california-women
#6
Michele J Eliason, Emma V Sanchez-Vaznaugh, David Stupplebeen
BACKGROUND: Most biomedical research has reported associations between weight and physical health problems; little is known about whether those associations vary by sexual identity. METHODS: Pooled data from the 2003 through 2013 waves of the California Health Interview Survey was used to construct logistic regression models to examine whether the associations between weight and four chronic conditions (type 2 diabetes, hypertension, heart disease, and asthma) varied by sexual identity...
May 24, 2017: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/28551053/socio-environmental-risk-factors-for-medically-attended-agricultural-injuries-in-wisconsin-dairy-farmers
#7
Jeffrey J VanWormer, Kathrine L Barnes, Stephen C Waring, Matthew C Keifer
BACKGROUND: Accidents are common in the agricultural industry, particularly among dairy farmers. How said farmers get hurt is well established, but far less is known about how distal, socio-environmental factors influence injuries. This study examined associations between medically-attended agricultural injuries and: (1) personal sociodemographic characteristics, and (2) farm environment features and general safety practices. METHODS: A cross-sectional survey was implemented with linked data from electronic health records on prior agricultural injuries that occurred between 01/01/2002-12/31/2015...
May 21, 2017: Injury
https://www.readbyqxmd.com/read/28551020/co-elution-effects-can-influence-molar-mass-determination-of-large-macromolecules-with-asymmetric-flow-field-flow-fractionation-coupled-to-multiangle-light-scattering
#8
Daysi Perez-Rea, Claudia Zielke, Lars Nilsson
Starch and hence, amylopectin is an important biomacromolecule in both the human diet as well as in technical applications. Therefore, accurate and reliable analytical methods for its characterization are needed. A suitable method for analyzing macromolecules with ultra-high molar mass, branched structure and high polydispersity is asymmetric flow field-flow fractionation (AF4) in combination with multiangle light scattering (MALS) detection. In this paper we illustrate how co-elution of low quantities of very large analytes in AF4 may cause disturbances in the MALS data which, in turn, causes an overestimation of the size...
May 12, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28550813/a-reliable-sewage-quality-abnormal-event-monitoring-system
#9
Tianling Li, Melissa Winnel, Hao Lin, Jared Panther, Chang Liu, Roger O'Halloran, Kewen Wang, Taicheng An, Po Keung Wong, Shanqing Zhang, Huijun Zhao
With closing water loop through purified recycled water, wastewater becomes a part of source water, requiring reliable wastewater quality monitoring system (WQMS) to manage wastewater source and mitigate potential health risks. However, the development of reliable WQMS is fatally constrained by severe contamination and biofouling of sensors due to the hostile analytical environment of wastewaters, especially raw sewages, that challenges the limit of existing sensing technologies. In this work, we report a technological solution to enable the development of WQMS for real-time abnormal event detection with high reliability and practicality...
May 20, 2017: Water Research
https://www.readbyqxmd.com/read/28550635/growth-corruption-health-triaca-and-environmental-degradation-empirical-evidence-from-indonesia-malaysia-and-thailand
#10
Muhammad Azam, Abdul Qayyum Khan
This study examines the impact of economic growth, corruption, health, and poverty on environmental degradation for three countries from ASEAN, namely Indonesia, Malaysia, and Thailand using annual data over the period of 1994-2014. The relationship between environmental degradation (pollution) by carbon dioxide (CO2) emissions and economic growth is examined along with some other variables, namely health expenditure, poverty, agriculture value added growth, industrial value added growth, and corruption. The ordinary least squares (OLS) method is applied as an analytical technique for parameter estimation...
May 27, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28550117/comparative-exploration-of-multidimensional-flow-cytometry-software-a-model-approach-evaluating-t-cell-polyfunctional-behavior
#11
Timothy T Spear, Michael I Nishimura, Patricia E Simms
Advancement in flow cytometry reagents and instrumentation has allowed for simultaneous analysis of large numbers of lineage/functional immune cell markers. Highly complex datasets generated by polychromatic flow cytometry require proper analytical software to answer investigators' questions. A problem among many investigators and flow cytometry Shared Resource Laboratories (SRLs), including our own, is a lack of access to a flow cytometry-knowledgeable bioinformatics team, making it difficult to learn and choose appropriate analysis tool(s)...
May 26, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28550058/whole-genome-and-core-genome-multilocus-sequence-typing-and-single-nucleotide-polymorphism-analyses-of-listeria-monocytogenes-associated-with-an-outbreak-linked-to-cheese-united-states-2013
#12
Yi Chen, Yan Luo, Heather Carleton, Ruth Timme, David Melka, Tim Muruvanda, Charles Wang, George Kastanis, Lee S Katz, Lauren Turner, Angela Fritzinger, Terence Moore, Robert Stones, Joseph Blankenship, Monique Salter, Mickey Parish, Thomas S Hammack, Peter S Evans, Cheryl L Tarr, Marc W Allard, Errol A Strain, Eric W Brown
Epidemiological findings of a listeriosis outbreak in 2013 implicated Hispanic-style cheese produced by Company A, and pulsed-field gel electrophoresis (PFGE) and whole genome sequencing (WGS) were performed on clinical isolates and representative isolates collected from Company A cheese and environmental samples during the investigation. The results strengthened the evidence for cheese as the vehicle. Surveillance sampling and WGS three months later revealed that the equipment purchased by Company B from Company A yielded an environmental isolate highly similar to all outbreak isolates...
May 26, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28549938/results-of-a-harmonized-endotoxin-recovery-study-protocol-evaluation-by-14-biophorum-operations-group-bpog-member-companies
#13
Jay Bolden, Michael Knight, Shahrzad Stockman, Bastian Omokoko
Significant regulatory and biopharmaceutical manufacturing attention has been recently generated regarding the inability to recover purified lipopolysaccharide in certain biopharmaceutical products, specifically those containing a chelator and surfactant. Disparate data has been generated and submitted during regulatory review. Study design is thought to significantly impact, and cause the confounding data. The BioPhorum Operations Group (BPOG) is an industry consortium of biopharmaceutical manufacturers. A BPOG team developed a collaborative experiment to determine if multiple laboratories could execute a harmonized protocol and reach equivalent conclusions...
May 23, 2017: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/28549905/on-the-use-of-group-sequential-study-designs-for-the-test-of-bioequivalence-for-complicated-products
#14
Rajesh Krishna, Wen-Lin Luo, Patrick J Larson, Paul H Fackler
A novel modeling approach together with a use of group sequential study design for a complicated triple fixed-dose combination was attempted. Probability of success (POS) was used for determining a weighted average power, where weight was based on available information such as data from previous pilot studies or literature. A simulation study was conducted that resulted in the development of the necessary sample size for the studies in addition to identifying a decision algorithm that was prospectively defined in the protocols...
May 23, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28548845/a-new-analytical-framework-for-verification-of-biomarkers-of-exposure-to-chemicals-combining-human-biomonitoring-and-water-fingerprinting
#15
Luigi Lopardo, Andrew Cummins, Axel Rydevik, Barbara Kasprzyk-Hordern
Molecular epidemiology approaches in human biomonitoring are powerful tools that allow for verification of public exposure to chemical substances. Unfortunately, due to logistical difficulties and high cost, they tend to evaluate small study groups and as a result might not provide comprehensive large scale community-wide exposure data. Urban water fingerprinting provides a timely alternative to traditional approaches. It can revolutionise the human exposure studies as urban water represents collective community-wide exposure...
May 26, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28548523/strength-and-viscosity-effects-on-perturbed-shock-front-stability-in-metals
#16
S Opie, E Loomis, P Peralta, T Shimada, R P Johnson
Computational modeling and experimental measurements on metal samples subject to a laser-driven, ablative Richtmyer-Meshkov instability showed differences between viscosity and strength effects. In particular, numerical and analytical solutions, coupled with measurements of fed-through perturbations, generated by perturbed shock fronts onto initially flat surfaces, show promise as a validation method for models of deviatoric response in the postshocked material. Analysis shows that measurements of shock perturbation amplitudes at low sample thickness-to-wavelength ratios are not enough to differentiate between strength and viscosity effects, but that surface displacement data of the fed-through perturbations appears to resolve the ambiguity...
May 12, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28547995/adsorption-induced-deformation-of-hierarchically-structured-mesoporous-silica-effect-of-pore-level-anisotropy
#17
Christian Balzer, Anna M Waag, Stefan Gehret, Gudrun Reichenauer, Florian Putz, Nicola Hüsing, Oskar Paris, Noam Bernstein, Gennady Y Gor, Alexander V Neimark
The goal of this work is to understand adsorption-induced deformation of hierarchically structured porous silica exhibiting well-defined cylindrical mesopores. For this purpose, we performed an in situ dilatometry measurement on a calcined and sintered monolithic silica sample during the adsorption of N2 at 77 K. To analyze the experimental data, we extended the adsorption stress model to account for the anisotropy of cylindrical mesopores, i.e., we explicitly derived the adsorption stress tensor components in the axial and radial direction of the pore...
May 26, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28546981/nurses-commitment-to-respecting-patient-dignity
#18
Zahra Raee, Heidarali Abedi, Mohsen Shahriari
BACKGROUND: Although respecting human dignity is a cornerstone of all nursing practices, industrialization has gradually decreased the attention paid to this subject in nursing care. Therefore, the present study aimed to investigate nurses' commitment to respecting patient dignity in hospitals of Isfahan, Iran. METHODS: This descriptive-analytical study was conducted in hospitals of Isfahan. Overall, 401 inpatients were selected by cluster sampling and then selected simple random sampling from different wards...
2017: Journal of Education and Health Promotion
https://www.readbyqxmd.com/read/28546968/assessment-of-nonscholastic-abilities-and-its-associated-factors-among-medical-students-an-exploratory-study
#19
S Ganesh Kumar, Sonali Sarkar
BACKGROUND: Nonscholastic abilities among medical students are an important area of concern for the health professionals. Very few studies had been conducted in the past with regard to it. OBJECTIVE: This study was an exploratory study aimed to assess the nonscholastic abilities among medical students in a medical institution in coastal South India. MATERIALS AND METHODS: This study assessed three broad domains of nonscholastic abilities namely personal qualities, interpersonal activities, and communication skills among 106 medical students using a structured questionnaire (27 questions with a total score of 27)...
2017: Journal of Education and Health Promotion
https://www.readbyqxmd.com/read/28546465/quantitative-mass-spectrometry-analysis-of-pd-l1-protein-expression-n-glycosylation-and-expression-stoichiometry-with-pd-1-and-pd-l2-in-human-melanoma
#20
Carlos A Morales-Betanzos, Hyoungjoo Lee, Paula I Gonzalez-Ericsson, Justin M Balko, Douglas B Johnson, Lisa J Zimmerman, Daniel C Liebler
Quantitative assessment of key proteins that control the tumor-immune interface is one of the most formidable analytical challenges in immunotherapeutics. We developed a targeted mass spectrometry (MS) platform to quantify programmed cell death-1 (PD-1), programmed cell death 1 ligand 1 (PD-L1), and programmed cell death 1 ligand 2 (PD-L2) at fmol/microgram protein levels in formalin fixed, paraffin-embedded sections from 22 human melanomas. PD-L1 abundance ranged 50-fold, from approximately 0.03 to 1.5 fmol/microgram protein and the PRM data were largely concordant with total PD-L1-positive cell content, as analyzed by immunohistochemistry (IHC) with the E1L3N antibody...
May 25, 2017: Molecular & Cellular Proteomics: MCP
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