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https://www.readbyqxmd.com/read/28327935/science-in-the-cloud-sic-a-use-case-in-mri-connectomics
#1
Gregory Kiar, Krzysztof J Gorgolewski, Dean Kleissas, William Gray Roncal, Brian Litt, Brian Wandell, Russel A Poldrack, Martin Wiener, R Jacob Vogelstein, Randal Burns, Joshua T Vogelstein
Modern technologies are enabling scientists to collect extraordinary amounts of complex and sophisticated data across a huge range of scales like never before. With this onslaught of data, we can allow the focal point to shift from data collection to data analysis. Unfortunately, lack of standardized sharing mechanisms and practices often make reproducing or extending scientific results very difficult. With the creation of data organization structures and tools which drastically improve code portability, we now have the opportunity to design such a framework for communicating extensible scientific discoveries...
March 7, 2017: GigaScience
https://www.readbyqxmd.com/read/28324690/e-coli-interactions-adhesion-and-transport-in-alumino-silica-clays
#2
Houzhen Wei, Guang Yang, Boya Wang, Runwei Li, Gang Chen, Zhenze Li
Bacterial adhesion and transport in the geological formation are controlled by their mutual complex interactions, which have been quantified by the traditional and extended Derjaguin-Landau-Verwey-Overbeek (DLVO) theory as well as direct atomic force microscopy (AFM) measurements. In this research, the DLVO forces calculated based on the independently determined bacterial and porous media surface thermodynamic properties were compared with those of AFM measurements. Although differences in the order of several magnitudes existed, forces obtained from both ways could explain the observations of E...
March 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28323658/changing-face-of-metastatic-prostate-cancer-the-law-of-diminishing-returns-holds-true
#3
Ulka N Vaishampayan
PURPOSE OF REVIEW: Prostate cancer presents with a multitude of faces. It ranges from localized cancers staying quiescent for many years during active surveillance to the raging diffuse liver metastases causing terminal disease. The incidence of metastatic disease is increasing. This review will highlight some of the recent developments as well as ongoing challenges of managing advanced prostate cancer. RECENT FINDINGS: Significant strides are being made in managing metastatic prostate cancer...
March 18, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/28323441/breaking-binaries-biomedicine-and-serostatus-borderlands-among-couples-with-mixed-hiv-status
#4
Asha Persson, Christy E Newman, Jeanne Ellard
With recent breakthroughs in HIV treatment and prevention, the meanings of HIV-positivity and HIV-negativity are changing at biomedical and community levels. We explore how binary constructions of HIV serostatus identities are giving way to something more complex that brings both welcome possibilities and potential concerns. We draw on research with couples with mixed HIV status to argue that, in the context of lived experiences, serostatus identities have always been more ambiguous than allowed for in HIV discourse...
February 28, 2017: Medical Anthropology
https://www.readbyqxmd.com/read/28317442/application-of-response-surface-methodology-and-semi-mechanistic-model-to-optimize-fluoride-removal-using-crushed-concrete-in-a-fixed-bed-column
#5
Bon-Wun Gu, Chang-Gu Lee, Seong-Jik Park
The aim of this study was to investigate the removal of fluoride from aqueous solutions by using crushed concrete fines (CCF) as a filter medium. Column experiments were performed in step injection mode under varying conditions of influent solution including pH 3-7, flow rate of 0.3-0.7 mL/min, and filter depth of 10-20 cm. The performance of fixed-bed columns was evaluated on the basis of the removal ratio (Re), uptake capacity (qe), degree of sorbent used (DoSU), and sorbent usage rate (SUR) obtained from breakthrough curves (BTC)...
March 18, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28294582/pioneering-medical-advances-through-nanofluidic-implantable-technologies
#6
REVIEW
R Lyle Hood, Gold Darr Hood, Mauro Ferrari, Alessandro Grattoni
Nanofluidic implantables represent a recent advance in a broad effort for developing personalized, point-of-care medical technologies. Such systems have unprecedented potential when matched with the newest developments in robotics, microprocessing, and tissue engineering. In this review, we present their emergence in medicine within the fields of diagnostics, biosensing, therapeutics, and theranostics. Discussion includes current limitations and future directions for these systems, as commensurate advances in power density and electronic processing are continually redefining the possible...
March 10, 2017: Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology
https://www.readbyqxmd.com/read/28286989/a-precision-medicine-initiative-for-alzheimer-s-disease-the-road-ahead-to-biomarker-guided-integrative-disease-modeling
#7
REVIEW
H Hampel, S E O'Bryant, S Durrleman, E Younesi, K Rojkova, V Escott-Price, J-C Corvol, K Broich, B Dubois, S Lista
After intense scientific exploration and more than a decade of failed trials, Alzheimer's disease (AD) remains a fatal global epidemic. A traditional research and drug development paradigm continues to target heterogeneous late-stage clinically phenotyped patients with single 'magic bullet' drugs. Here, we propose that it is time for a paradigm shift towards the implementation of precision medicine (PM) for enhanced risk screening, detection, treatment, and prevention of AD. The overarching structure of how PM for AD can be achieved will be provided through the convergence of breakthrough technological advances, including big data science, systems biology, genomic sequencing, blood-based biomarkers, integrated disease modeling and P4 medicine...
April 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28276815/effectiveness-of-interferon-free-therapy-for-the-treatment-of-hcv-patients-with-compensated-cirrhosis-treated-through-the-irish-early-access-program
#8
Emma Gray, Aisling O'Leary, Colm Bergin, Suzanne Norris
BACKGROUND: We investigated the real-world effectiveness of interferon-free regimens for the treatment of patients with compensated cirrhosis infected with hepatitis C virus (HCV). METHOD: Using the Irish national HCV treatment registry, the effectiveness and safety of interferon-free regimens for HCV-infected patients treated between April 2015 and August 2016, was determined. RESULTS: A SVR12 was achieved in 86% of subjects treated with sofosbuvir/ledipasvir ± ribavirin (SOF/LDV±RBV), 93% treated with paritaprevir, ombitasvir and ritonavir combined with dasabuvir ± ribavirin (3D±RBV) and 89% treated with sofosbuvir/daclatasvir ± ribavirin (SOF/DCV±RBV)...
February 22, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28273195/-role-of-pembrolizumab-in-the-treatment-of-non-small-cell-lung-cancer-nsclc
#9
Gabriella Gálffy, Rita Puskás
Lung cancer is the leading cause of cancer-related death, not only in our country but also worldwide. It is particularly the incidence and mortality regarding females that have increased significantly in recent years. For many years chemotherapeutic treatments of lung cancer were the only way forward in the treatment of patients. In 2015 immunotherapy proved to be a great breakthrough in the treatment of non-small cell lung cancer (NSCLC), resulting from a new treatment strategy, described as immune checkpoint inhibition...
March 8, 2017: Magyar Onkologia
https://www.readbyqxmd.com/read/28266275/molecular-basis-of-human-diseases-and-targeted-therapy-based-on-small-molecule-inhibitors-of-er-stress-induced-signaling-pathways
#10
I Majsterek, J Alan Diehl, D Pytel, A Nowak, W Rozpędek
The Endoplasmic Reticulum (ER) provides a conserved protein quality control system and plays a fundamental role in cell growth and homeostasis. Disturbances in the ER homeostasis may originate especially from hypoxia, glucose deficiency, presence of mutant proteins, that directly impair protein folding capacity and after deposition of unfolded and misfolded proteins within ER lumen trigger ER stress conditions. That subsequently activates the Unfolded Protein Response (UPR) branches, which has a dual pro-adaptive or pro-apoptotic role dependently on severity and time of duration of ER stress conditions...
March 6, 2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/28261060/dendritic-spikes-in-sensory-perception
#11
REVIEW
Satoshi Manita, Hiroyoshi Miyakawa, Kazuo Kitamura, Masanori Murayama
What is the function of dendritic spikes? One might argue that they provide conditions for neuronal plasticity or that they are essential for neural computation. However, despite a long history of dendritic research, the physiological relevance of dendritic spikes in brain function remains unknown. This could stem from the fact that most studies on dendrites have been performed in vitro. Fortunately, the emergence of novel techniques such as improved two-photon microscopy, genetically encoded calcium indicators (GECIs), and optogenetic tools has provided the means for vital breakthroughs in in vivo dendritic research...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28257137/novel-players-in-x-inactivation-insights-into-xist-mediated-gene-silencing-and-chromosome-conformation
#12
REVIEW
Simão T da Rocha, Edith Heard
The nuclear long noncoding RNA (lncRNA) Xist ensures X-chromosome inactivation (XCI) in female placental mammals. Although Xist is one of the most intensively studied lncRNAs, the mechanisms associated with its capacity to trigger chromosome-wide gene silencing, the formation of facultative heterochromatin and an unusual 3D conformation of the inactive X chromosome (Xi) have remained elusive. Now researchers have identified novel functional partners of Xist in a series of breakthrough studies, using unbiased techniques to isolate Xist-bound proteins, as well as forward genetic screens...
March 3, 2017: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/28256574/tissue-specific-tumorigenesis-context-matters
#13
REVIEW
Günter Schneider, Marc Schmidt-Supprian, Roland Rad, Dieter Saur
How can we treat cancer more effectively? Traditionally, tumours from the same anatomical site are treated as one tumour entity. This concept has been challenged by recent breakthroughs in cancer genomics and translational research that have enabled molecular tumour profiling. The identification and validation of cancer drivers that are shared between different tumour types, spurred the new paradigm to target driver pathways across anatomical sites by off-label drug use, or within so-called basket or umbrella trials which are designed to test whether molecular alterations in one tumour entity can be extrapolated to all others...
April 2017: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/28235690/interplay-between-cancer-cell-cycle-and-metabolism-challenges-targets-and-therapeutic-opportunities
#14
REVIEW
Debmalya Roy, Gao Ying Sheng, Semukunzi Herve, Evandro Carvalho, Arpan Mahanty, Shengtao Yuan, Li Sun
A growing interest has emerged in the field of studying the cross-talk between cancer cell cycle and metabolism. In this review, we aimed to present how metabolism and cell cycle are correlated and how cancer cells get energy to drive cell cycle. Cell proliferation and cell death largely depend on the metabolic activity of the cell. Cell cycle proteins, e.g. cyclin D, cyclin dependent kinase (CDK), some pro-apoptotic and anti-apoptotic proteins, and P53 have been shown to be regulated by metabolic crosstalk...
February 21, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28224900/chemical-oxygen-demand-historical-perspectives-and-future-challenges
#15
REVIEW
René Bernard Geerdink, Ricardo Sebastiaan van den Hurk, Onno Jacob Epema
Determining the chemical oxygen demand (COD) is challenging because of the chemicals that are used in the current methods. There is an urgent need to determine the pollution in surface waters from (heavy) industry via a simple, reliable and fast method. However, the current procedures use hazardous chemicals, such as mercury, to suppress chloride interferences. This challenge has not been resolved. The introduction of modern detection techniques, such as chemiluminescence and oxidation procedures, e.g., microwave and ultrasound dissolution, has not resulted in a breakthrough...
April 8, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28222990/establishing-patient-specific-criteria-for-selecting-the-optimal-upper-extremity-vascular-access-procedure
#16
Karen Woo, Jesus Ulloa, Michael Allon, Christopher G Carsten, Eric S Chemla, Mitchell L Henry, Thomas S Huber, Jeffrey H Lawson, Charmaine E Lok, Eric K Peden, Larry Scher, Anton Sidawy, Melinda Maggard-Gibbons, David Cull
OBJECTIVE: The Kidney Disease Outcome Quality Initiative and Fistula First Breakthrough Initiative call for the indiscriminate creation of arteriovenous fistulas (AVFs) over arteriovenous grafts (AVGs) without providing patient-specific criteria for vascular access selection. Although the U.S. AVF rate has increased dramatically, several reports have found that this singular focus on increasing AVFs has resulted in increased AVF nonmaturation/early failure and a high prevalence of catheter dependence...
April 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28222691/how-to-improve-patient-education-on-deep-brain-stimulation-in-parkinson-s-disease-the-care-monitor-study
#17
Lars Dinkelbach, Bettina Möller, Karsten Witt, Alfons Schnitzler, Martin Südmeyer
BACKGROUND: The introduction of deep brain stimulation (DBS) about 25 years ago provided one of the major breakthroughs in the treatment of Parkinson's disease (PD). However, a high percentage of patients are reluctant to undergo DBS. Previous research revealed that the critical step on the patient's path to DBS is the decision whether to undergo further diagnostic assessment for surgery at a specialized DBS-center. The aims of the current study were to evaluate how effective the combination of an outpatient DBS screening tool, STIMULUS, with specially developed educational material was to enhance patient education on DBS and to identify motivational aspects which influenced the patients' willingness to undergo further assessment...
February 21, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28220464/perspectives-and-challenges-of-pluripotent-stem-cells-in-cardiac-arrhythmia-research
#18
REVIEW
Alexander Goedel, Ilaria My, Daniel Sinnecker, Alessandra Moretti
PURPOSE OF REVIEW: The promises of human-induced pluripotent stem cells (hiPSCs) for modeling arrhythmogenic disease, but also for drug discovery and toxicity tests, are straightforward and exciting. However, the full potential of this new technology has not been fully realized yet. The purpose of this review is to provide an overview of the state-of-the-art research in arrhythmogenic disease modeling and drug discovery and an outlook of what can be expected from the second decade of hiPSC-based arrhythmia research...
March 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28219357/prescription-frequency-and-patterns-of-chinese-herbal-medicine-for-liver-cancer-patients-in-taiwan-a-cross-sectional-analysis-of-the-national-health-insurance-research-database
#19
Chin-Tsung Ting, Chian-Jue Kuo, Hsiao-Yun Hu, Ya-Ling Lee, Tung-Hu Tsai
BACKGROUND: Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related deaths worldwide. Chinese herbal medicine (CHM) is frequently provided to HCC patients. The aim of this study was to understand the prescription frequency and patterns of CHM for HCC patients by analyzing the claims data from the National Health Insurance (NHI) in Taiwan. METHODS: We identified 73918 newly diagnosed HCC subjects from the database of Registry for Catastrophic Illness during 2002 to 2009 and to analyze the frequency and pattern of corresponding CHM prescriptions for HCC patients...
February 20, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28219287/overview-of-the-moral-status-of-ips-cells
#20
Andreia Martins Martinho
The production of induced pluripotent stem (iPS) cells in 2006 by Takahashi and Yamanaka was a major breakthrough in stem cell research. IPS cells technology holds great promise for cell therapy, disease modelling, and drug testing, but it poses ethical questions concerning the moral status of somatic cells, which can re-gain pluripotency (iPS cells). This article provides an overview of the arguments that substantiate the debate on the moral assessment of iPS cells: potentiality argument; relational properties/standard view; and genetic basis for moral status...
July 2016: New Bioethics: a Multidisciplinary Journal of Biotechnology and the Body
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