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https://www.readbyqxmd.com/read/28329686/demethylated-hsatii-dna-and-hsatii-rna-foci-sequester-prc1-and-mecp2-into-cancer-specific-nuclear-bodies
#1
Lisa L Hall, Meg Byron, Dawn M Carone, Troy W Whitfield, Gayle P Pouliot, Andrew Fischer, Peter Jones, Jeanne B Lawrence
This study reveals that high-copy satellite II (HSATII) sequences in the human genome can bind and impact distribution of chromatin regulatory proteins and that this goes awry in cancer. In many cancers, master regulatory proteins form two types of cancer-specific nuclear bodies, caused by locus-specific deregulation of HSATII. DNA demethylation at the 1q12 mega-satellite, common in cancer, causes PRC1 aggregation into prominent Cancer-Associated Polycomb (CAP) bodies. These loci remain silent, whereas HSATII loci with reduced PRC1 become derepressed, reflecting imbalanced distribution of UbH2A on these and other PcG-regulated loci...
March 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/28329353/pre-diagnosis-sleep-duration-napping-and-mortality-among-colorectal-cancer-survivors-in-a-large-us-cohort
#2
Qian Xiao, Hannah Arem, Ruth Pfeiffer, Charles Matthews
Study Objectives: Pre-diagnosis lifestyle factors can influence colorectal cancer (CRC) survival. Sleep deficiency is linked to metabolic dysfunction and chronic inflammation, which may contribute to higher mortality from cardiometabolic conditions and promote tumor progression. We hypothesized that pre-diagnosis sleep deficiency would be associated with poor CRC survival. No previous study has examined either nighttime sleep or daytime napping in relation to survival among men and women diagnosed with CRC...
February 9, 2017: Sleep
https://www.readbyqxmd.com/read/28328661/microangiography-to-monitor-treatment-outcomes-following-severe-frostbite-injury-to-the-hands
#3
Thomas Masters, Steven Omodt, Jon Gayken, Christopher Logue, Bjorn Westgard, Stephen Hendriksen, Joseph Walter, Rachel Nygaard
Frostbite injury causes direct damage to tissues following exposure to temperatures below their freezing point causing tissue death potentially leading to serious amputations. After rewarming, a variety of treatment options have been employed to avoid amputation. This case report details the use of indocyanine green fluorescence microangiography to monitor the clinical progression of perfusion following hyperbaric oxygen therapy (HBOT) for severe frostbite injury. We present a case report of a man with deep frostbite of the bilateral hands treated with thrombolytics and HBOT...
March 15, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28328312/adolescent-substance-use-assessing-the-knowledge-attitudes-and-practices-of-a-school-based-health-center-workforce
#4
Mary M Ramos, Rachel A Sebastian, Mary Murphy, Kristin Oreskovich, Timothy P Condon
BACKGROUND: Recent attention has focused on the potential for school-based health centers (SBHCs) to provide access points for adolescent substance use care. In 2015, the University of New Mexico began screening, brief intervention, and referral to treatment (SBIRT) training for providers at New Mexico Department of Health (NMDOH)-funded SBHCs across the state. This study assesses baseline knowledge, attitudes, and practices of the New Mexico SBHC provider workforce regarding adolescent substance use and provision of services...
February 8, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28328306/integration-and-evaluation-of-substance-abuse-research-education-training-saret-into-a-master-of-social-work-program
#5
Ellen Tuchman, Kathleen Hanley, Madeline Naegle, Frederick More, Sewit Bereket, Marc N Gourevitch
BACKGROUND: The Substance Abuse Research and Education Training (SARET) program is funded by the National Institutes of Drug Abuse in 2006 as a novel approach to spark interest in substance abuse research among medical, dental, nursing, and social work graduate students through a Web-based curriculum and research mentorships. This report presents the initial integration of the intervention in a Master of Social Work (MSW) program, the components of the program, and the mixed-methods evaluation of its effect on students' attitudes towards substance abuse research and treatment...
February 8, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28326916/pay-attention-to-serendipity
#6
Layla Haidrani
When and why did you develop an interest in research? My first nursing job was as a staff nurse in an oncology intensive care unit and a bone marrow transplant unit taking care of patients who were participating in high intensity clinical trials. During my master's degree, I worked as a research assistant for two faculty members whose research was making an impact at state and national levels, and I was able to lead a small research project of my own. During my doctoral and post-doctoral studies, my research interests continued to grow...
March 22, 2017: Nurse Researcher
https://www.readbyqxmd.com/read/28326909/resynchronization-dynamics-reveal-that-the-ventral-entrains-the-dorsal-suprachiasmatic-nucleus
#7
Stephanie R Taylor, Thomas J Wang, Daniel Granados-Fuentes, Erik D Herzog
Although the suprachiasmatic nucleus (SCN) has long been considered the master circadian clock in mammals, the topology of the connections that synchronize daily rhythms among SCN cells is not well understood. We combined experimental and computational methods to infer the directed interactions that mediate circadian synchrony between regions of the SCN. We analyzed PERIOD2 (PER2) expression from SCN slices during and after treatment with tetrodotoxin, allowing us to map connections as cells resynchronized their daily cycling following blockade and restoration of cell-cell communication...
February 2017: Journal of Biological Rhythms
https://www.readbyqxmd.com/read/28326696/history-of-research-on-c-elegans-and-other-free-living-nematodes-as-model-organisms
#8
Victor Marc Nigon, Marie-Anne Félix
The nematode Caenorhabditis elegans is now a major model organism in biology. The choice of Sydney Brenner to adopt this species in the mid-1960s and the success of his team in raising it to a model organism status have been told (http://www.wormbook.org/toc_wormhistory.html; Brenner, 2001; Ankeny, 2001). Here we review the pre-Brenner history of the use of free-living nematodes as models for general questions in biology. We focus on the period that started in 1899 with the first publication of Emile Maupas mentioning Rhabditis elegans and ended in 1974 with the first publications by Brenner...
March 21, 2017: WormBook: the Online Review of C. Elegans Biology
https://www.readbyqxmd.com/read/28326061/come-an-essential-response-regulator-negatively-regulates-the-expression-of-the-capsular-polysaccharide-locus-and-attenuates-the-bacterial-virulence-in-streptococcus-pneumoniae
#9
Yuqiang Zheng, Xuemei Zhang, Xiaofang Wang, Libin Wang, Jinghui Zhang, Yibing Yin
The capsular polysaccharide (CPS) of Streptococcus pneumoniae is the main virulence factors required for effective colonization and invasive disease. The capacity to regulate CPS production at the transcriptional level is critical for the survival of S. pneumoniae in different host niches, but little is known about the transcription regulators of cps locus. In the present study, we isolated and identified the response regulator ComE, the master competence switch in transformation of S. pneumoniae, as a transcriptional regulator of cps locus by DNA affinity chromatography-pulldown, MALDI-TOF mass spectrometry (MS) and electrophoretic mobility shift assay (EMSA)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28325683/biomimetic-scaffolds-with-three-dimensional-undulated-microtopographies
#10
Jonelle Z Yu, Emrullah Korkmaz, Monica I Berg, Philip R LeDuc, O Burak Ozdoganlar
Many human and animal tissues naturally possess three-dimensional (3D) micro-scale geometries enabling certain physiological functions. Absence of these microgeometries in engineered tissues may undermine the effectiveness of corresponding tissue repair and regeneration. This paper introduces a novel approach to create tissue scaffolds with biomimetic 3D undulated microtopographies. The mechanical micromilling technology is used for precise and reproducible fabrication of poly(methyl methacrylate) (PMMA) master molds with 3D undulated microtopographies...
February 14, 2017: Biomaterials
https://www.readbyqxmd.com/read/28323894/a-generalized-phase-resetting-method-for-phase-locked-modes-prediction
#11
Sorinel A Oprisan, Dave I Austin
We derived analytically and checked numerically a set of novel conditions for the existence and the stability of phase-locked modes in a biologically relevant master-slave neural network with a dynamic feedback loop. Since neural oscillators even in the three-neuron network investigated here receive multiple inputs per cycle, we generalized the concept of phase resetting to accommodate multiple inputs per cycle. We proved that the phase resetting produced by two or more stimuli per cycle can be recursively computed from the traditional, single stimulus, phase resetting...
2017: PloS One
https://www.readbyqxmd.com/read/28322871/recurrent-emergence-of-structural-variants-of-ltr-retrotransposon-csrn1-evolving-novel-expression-strategy-and-their-selective-expansion-in-a-carcinogenic-liver-fluke-clonorchis-sinensis
#12
Seon-Hee Kim, Yoon Kong, Young-An Bae
Autonomous retrotransposons, in which replication and transcription are coupled, encode the essential gag and pol genes as a fusion or separate overlapping form(s) that are expressed in single transcripts regulated by a common upstream promoter. The element-specific expression strategies have driven development of relevant translational recoding mechanisms including ribosomal frameshifting to satisfy the protein stoichiometry critical for the assembly of infectious virus-like particles. Retrotransposons with different recoding strategies exhibit a mosaic distribution pattern across the diverse families of reverse transcribing elements, even though their respective distributions are substantially skewed towards certain family groups...
March 16, 2017: Molecular and Biochemical Parasitology
https://www.readbyqxmd.com/read/28322647/career-decision-making-self-efficacy-and-professional-commitment-among-master-nursing-students
#13
Jingxia Wang, Rui Guo, Minhui Liu, Xiaofei Zhang, Lu Ren, Mei Sun, Siyuan Tang
Developing countries face a shortage of nurses with higher education, such as those with a master's degree. However, few studies have investigated the interaction between career decision and professional commitment (PC) of nursing students, especially for postgraduates. This study performed correlation analysis for career decision-making self-efficacy (CDMSE) and PC of 545 nursing postgraduate students from nursing schools at 19 universities or colleges throughout mainland China, who came from different regions, and possessed different years of study and different types of degrees as well as part-time job experiences...
December 1, 2016: Western Journal of Nursing Research
https://www.readbyqxmd.com/read/28322342/therapy-targeted-to-the-metastatic-niche-is-effective-in-a-model-of-stage-iv-breast-cancer
#14
Byunghee Yoo, Amol Kavishwar, Ping Wang, Alana Ross, Pamela Pantazopoulos, Michael Dudley, Anna Moore, Zdravka Medarova
Treatment of stage IV metastatic breast cancer patients is limited to palliative options and represents an unmet clinical need. Here, we demonstrate that pharmacological inhibition of miRNA-10b - a master regulator of metastatic cell viability - leads to elimination of distant metastases in a mouse model of metastatic breast cancer. This was achieved using the miRNA-10b inhibitory nanodrug, MN-anti-miR10b, which consists of magnetic nanoparticles, conjugated to LNA-based miR-10b antagomirs. Intravenous injection of MN-anti-miR10b into mice bearing lung, bone, and brain metastases from breast cancer resulted in selective accumulation of the nanodrug in metastatic tumor cells...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28321295/getting-started-with-tables
#15
Hazel Inskip, Georgia Ntani, Leo Westbury, Chiara Di Gravio, Stefania D'Angelo, Camille Parsons, Janis Baird
BACKGROUND: Tables are often overlooked by many readers of papers who tend to focus on the text. Good tables tell much of the story of a paper and give a richer insight into the details of the study participants and the main research findings. Being confident in reading tables and constructing clear tables are important skills for researchers to master. METHOD: Common forms of tables were considered, along with the standard statistics used in them. Papers in the Archives of Public Health published during 2015 and 2016 were hand-searched for examples to illustrate the points being made...
2017: Archives of Public Health, Archives Belges de Santé Publique
https://www.readbyqxmd.com/read/28320908/reaction-and-relaxation-at-surface-hotspots-using-molecular-dynamics-and-the-energy-grained-master-equation-to-describe-diamond-etching
#16
David R Glowacki, W J Rodgers, Robin Shannon, Struan H Robertson, Jeremy N Harvey
The extent to which vibrational energy transfer dynamics can impact reaction outcomes beyond the gas phase remains an active research question. Molecular dynamics (MD) simulations are the method of choice for investigating such questions; however, they can be extremely expensive, and therefore it is worth developing cheaper models that are capable of furnishing reasonable results. This paper has two primary aims. First, we investigate the competition between energy relaxation and reaction at 'hotspots' that form on the surface of diamond during the chemical vapour deposition process...
April 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28320839/sleep-deprivation-and-caffeine-treatment-potentiate-photic-resetting-of-the-master-circadian-clock-in-a-diurnal-rodent
#17
Pawan Kumar Jha, Hanan Bouâouda, Sylviane Gourmelen, Stephanie Dumont, Fanny Fuchs, Yannick Goumon, Patrice Bourgin, Andries Kalsbeek, Etienne Challet
Circadian rhythms in nocturnal and diurnal mammals are primarily synchronized to local time by the light-dark cycle. However, non-photic factors, such as behavioural arousal and metabolic cues, can also phase-shift the master clock in the suprachiasmatic nuclei (SCN) and/or reduce the synchronizing effects of light in nocturnal rodents. In diurnal rodents, the role of arousal or insufficient sleep in these functions is still poorly understood. In the present study, diurnal Sudanian grass rats, Arvicanthis ansorgei, were aroused at night by sleep deprivation (gentle handling) or caffeine treatment that both prevented sleep...
March 20, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28320734/topless-mediates-brassinosteroid-control-of-shoot-boundaries-and-root-meristem-development-in-arabidopsis-thaliana
#18
Ana Espinosa-Ruiz, Cristina Martínez, Miguel de Lucas, Norma Fàbregas, Nadja Bosch, Ana I Caño-Delgado, Salomé Prat
The transcription factor bri1-EMS-SUPRESSOR1 (BES1) is a master regulator of brassinosteroid (BR)-regulated gene expression. BES1 together with BRASSINAZOLE-RESISTANT1 (BZR1) drive activated or repressed expression of several genes, and have a prominent role in negative regulation of BR synthesis. Here, we report that BES1 interaction with TOPLESS (TPL), via its ERF-associated amphiphilic repression EAR motif, is essential for BES1-mediated control of organ boundary formation in the SAM and the regulation of the quiescent center (QC) cell division in roots...
March 20, 2017: Development
https://www.readbyqxmd.com/read/28320666/rgbd-salient-object-detection-via-deep-fusion
#19
Liangqiong Qu, Shengfeng He, Jiawei Zhang, Jiandong Tian, Yandong Tang, Qingxiong Yang
Numerous efforts have been made to design various low-level saliency cues for RGBD saliency detection, such as color and depth contrast features as well as background and color compactness priors. However, how these low-level saliency cues interact with each other and how they can be effectively incorporated to generate a master saliency map remain challenging problems. In this paper, we design a new convolutional neural network (CNN) to automatically learn the interaction mechanism for RGBD salient object detection...
March 15, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28320635/safety-and-efficacy-of-multipotent-adult-progenitor-cells-in-acute-ischaemic-stroke-masters-a-randomised-double-blind-placebo-controlled-phase-2-trial
#20
David C Hess, Lawrence R Wechsler, Wayne M Clark, Sean I Savitz, Gary A Ford, David Chiu, Dileep R Yavagal, Ken Uchino, David S Liebeskind, Alexander P Auchus, Souvik Sen, Cathy A Sila, Jeffrey D Vest, Robert W Mays
BACKGROUND: Multipotent adult progenitor cells are a bone marrow-derived, allogeneic, cell therapy product that modulates the immune system, and represents a promising therapy for acute stroke. We aimed to identify the highest, well-tolerated, and safest single dose of multipotent adult progenitor cells, and if they were efficacious as a treatment for stroke recovery. METHODS: We did a phase 2, randomised, double-blind, placebo-controlled, dose-escalation trial of intravenous multipotent adult progenitor cells in 33 centres in the UK and the USA...
March 17, 2017: Lancet Neurology
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