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Yuchen Gao, Xin Xiong, Spencer Wong, Emeric J Charles, Wendell A Lim, Lei S Qi
The ability to dynamically manipulate the transcriptome is important for studying how gene networks direct cellular functions and how network perturbations cause disease. Nuclease-dead CRISPR-dCas9 transcriptional regulators, while offering an approach for controlling individual gene expression, remain incapable of dynamically coordinating complex transcriptional events. Here, we describe a flexible dCas9-based platform for chemical-inducible complex gene regulation. From a screen of chemical- and light-inducible dimerization systems, we identified two potent chemical inducers that mediate efficient gene activation and repression in mammalian cells...
October 24, 2016: Nature Methods
Vincent Doublet, Robert J Paxton, Cynthia M McDonnell, Emeric Dubois, Sabine Nidelet, Robin F A Moritz, Cédric Alaux, Yves Le Conte
Regulation of gene expression in the brain plays an important role in behavioral plasticity and decision making in response to external stimuli. However, both can be severely affected by environmental factors, such as parasites and pathogens. In honey bees, the emergence and re-emergence of pathogens and potential for pathogen co-infection and interaction have been suggested as major components that significantly impaired social behavior and survival. To understand how the honey bee is affected and responds to interacting pathogens, we co-infected workers with two prevalent pathogens of different nature, the positive single strand RNA virus Black queen cell virus (BQCV), and the Microsporidia Nosema ceranae, and explored gene expression changes in brains upon single infections and co-infections...
December 2016: Genomics Data
Adrian G Murphy, Rory Casey, Aoife Maguire, Miriam Tosetto, Clare T Butler, Emer Conroy, Alison L Reynolds, Kieran Sheahan, Diarmuid O'Donoghue, William M Gallagher, David Fennelly, Breandán N Kennedy, Jacintha O'Sullivan
Colorectal cancer (CRC) is a leading cause of cancer deaths. Molecularly targeted therapies (e.g. bevacizumab) have improved survival rates but drug resistance ultimately develops and newer therapies are required. We identified quininib as a small molecule drug with anti-angiogenic activity using in vitro, ex vivo and in vivo screening models. Quininib (2-[(E)-2-(Quinolin-2-yl) vinyl] phenol), is a small molecule drug (molecular weight 283.75 g/mol), which significantly inhibited blood vessel development in zebrafish embryos (p < 0...
October 14, 2016: Scientific Reports
Emer McGowan, Emma Stokes
BACKGROUND: Health service reform, physiotherapy graduate unemployment, and the impending introduction of state regulation mean that physiotherapists in Ireland today are facing many challenges. Leadership is needed to ensure that the profession will be able to adapt to the demands and inevitable changes ahead. OBJECTIVE: To investigate the perceptions of physiotherapists in Ireland of leadership and leadership characteristics, and to explore their participation in leadership development training...
October 13, 2016: Physiotherapy Theory and Practice
Sayani Dasgupta, Ciyu Yang, Leandro M Castro, Alexandre K Tashima, Emer S Ferro, Robyn D Moir, Ian M Willis, Lloyd D Fricker
Peptides function as signaling molecules in species as diverse as humans and yeast. Mass spectrometry-based peptidomics techniques provide a relatively unbiased method to assess the peptidome of biological samples. In the present study, we used a quantitative peptidomic technique to characterize the peptidome of the yeast Saccharomyces cerevisiae and compare it to the peptidomes of mammalian cell lines and tissues. Altogether, 297 yeast peptides derived from 75 proteins were identified. The yeast peptides are similar to those of the human peptidome in average size and amino acid composition...
2016: PloS One
Emer O'Loughlin, Susan Hourihan, Jeremy Chataway, E Diane Playford, Afsane Riazi
PURPOSE: The majority of people with multiple sclerosis (pwMS) initially present with discreet periods of relapses followed by partial remission of symptoms (RRMS). Over time, most pwMS transition to secondary progressive MS (SPMS), characterized by a gradual accumulation of disability. This study aimed to explore the experiences, coping and needs associated with transitioning from RRMS to SPMS. METHOD: Data were collected via semi-structured interviews with nine pwMS and seven specialist MS health professionals (HPs)...
August 16, 2016: Disability and Rehabilitation
Xavier Caubit, Paolo Gubellini, Joris Andrieux, Pierre L Roubertoux, Mehdi Metwaly, Bernard Jacq, Ahmed Fatmi, Laurence Had-Aissouni, Kenneth Y Kwan, Pascal Salin, Michèle Carlier, Agne Liedén, Eva Rudd, Marwan Shinawi, Catherine Vincent-Delorme, Jean-Marie Cuisset, Marie-Pierre Lemaitre, Fatimetou Abderrehamane, Bénédicte Duban, Jean-François Lemaitre, Adrian S Woolf, Detlef Bockenhauer, Dany Severac, Emeric Dubois, Ying Zhu, Nenad Sestan, Alistair N Garratt, Lydia Kerkerian- Le Goff, Laurent Fasano
TSHZ3, which encodes a zinc-finger transcription factor, was recently positioned as a hub gene in a module of the genes with the highest expression in the developing human neocortex, but its functions remained unknown. Here we identify TSHZ3 as the critical region for a syndrome associated with heterozygous deletions at 19q12-q13.11, which includes autism spectrum disorder (ASD). In Tshz3-null mice, differentially expressed genes include layer-specific markers of cerebral cortical projection neurons (CPNs), and the human orthologs of these genes are strongly associated with ASD...
September 26, 2016: Nature Genetics
Emer Fogarty, Susanne Schmitz, Niall Tubridy, Cathal Walsh, Michael Barry
INTRODUCTION: Randomised studies have demonstrated efficacy of disease-modifying therapies in relapsing remitting multiple sclerosis (RRMS). However it is unclear how the magnitude of treatment efficacy varies across all currently available therapies. OBJECTIVE: To perform a systematic review and network meta-analysis to evaluate the comparative efficacy of available therapies in reducing relapses and disability progression in RRMS. METHODS: A systematic review identified 28 randomised, placebo-controlled and direct comparative trials...
September 2016: Multiple Sclerosis and related Disorders
Emer J Hughes, Tobias Winchman, Francesco Padormo, Rui Teixeira, Julia Wurie, Maryanne Sharma, Matthew Fox, Jana Hutter, Lucilio Cordero-Grande, Anthony N Price, Joanna Allsop, Jose Bueno-Conde, Nora Tusor, Tomoki Arichi, A D Edwards, Mary A Rutherford, Serena J Counsell, Joseph V Hajnal
PURPOSE: The goal of the Developing Human Connectome Project is to acquire MRI in 1000 neonates to create a dynamic map of human brain connectivity during early development. High-quality imaging in this cohort without sedation presents a number of technical and practical challenges. METHODS: We designed a neonatal brain imaging system (NBIS) consisting of a dedicated 32-channel receive array coil and a positioning device that allows placement of the infant's head deep into the coil for maximum signal-to-noise ratio (SNR)...
September 19, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
Vitor Emer Egypto Rosa, João Ricardo Cordeiro Fernandes, Antonio Sergio de Santis Andrade Lopes, Tarso Augusto Duenhas Accorsi, Flavio Tarasoutchi
No abstract text is available yet for this article.
August 2016: Arquivos Brasileiros de Cardiologia
Boubacar Diallo, Daouda Sissoko, Nicholas J Loman, Hadja Aïssatou Bah, Hawa Bah, Mary Claire Worrell, Lya Saidou Conde, Ramata Sacko, Samuel Mesfin, Angelo Loua, Jacques Katomba Kalonda, Ngozi A Erondu, Benjamin A Dahl, Susann Handrick, Ian Goodfellow, Luke W Meredith, Matthew Cotten, Umaru Jah, Raoul Emeric Guetiya Wadoum, Pierre Rollin, N'Faly Magassouba, Denis Malvy, Xavier Anglaret, Miles W Carroll, Raymond Bruce Aylward, Mamoudou Harouna Djingarey, Abdoulaye Diarra, Pierre Formenty, Sakoba Keïta, Stephan Günther, Andrew Rambaut, Sophie Duraffour
We report on an Ebola virus disease (EVD) survivor who showed Ebola virus in seminal fluid 531 days after onset of disease. The persisting virus was sexually transmitted in February 2016, about 470 days after onset of symptoms, and caused a new cluster of EVD in Guinea and Liberia.
September 1, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Emer Van Ryswyk, Richard Weeks, Laura Bandick, Michaela O'Keefe, Andrew Vakulin, Peter Catcheside, Laura Barger, Andrew Potter, Nick Poulos, Jarryd Wallace, Nick A Antic
OBJECTIVES: To improve well-being and performance indicators in a group of Australian Football League (AFL) players via a six-week sleep optimisation programme. DESIGN: Prospective intervention study following observations suggestive of reduced sleep and excessive daytime sleepiness in an AFL group. METHODS: Athletes from the Adelaide Football Club were invited to participate if they had played AFL senior-level football for 1-5 years, or if they had excessive daytime sleepiness (Epworth Sleepiness Scale [ESS] >10), measured via ESS...
August 30, 2016: European Journal of Sport Science
Kay Pieterman, Dafnis Batalle, Jeroen Dudink, J-Donald Tournier, Emer J Hughes, Madeleine Barnett, Manon J Benders, A David Edwards, Freek E Hoebeek, Serena J Counsell
Disrupted cerebellar development and injury is associated with impairments in both motor and non-motor domains. Methods to non-invasively characterize cerebellar afferent and efferent connections during early development are lacking. The aim of this study was to assess the feasibility of delineating cortico-ponto-cerebellar (CPC) and cerebello-thalamo-cortical (CTC) white matter tracts during brain development using high angular resolution diffusion imaging (HARDI). HARDI data were obtained in 24 infants born between 24(+6) and 39 weeks gestational age (median 33(+4) weeks) and scanned between 29(+1) and 44 weeks postmenstrual age (PMA) (median 37(+1) weeks)...
August 29, 2016: Brain Structure & Function
Cormac McCarthy, Emer P Reeves, Noel G McElvaney
Alpha-1 antitrypsin deficiency (AATD) is characterized by low levels of circulating alpha-1 antitrypsin and an increased risk for emphysema, liver disease, and panniculitis. The reduced levels of alpha-1 antitrypsin in AATD predispose the lung to unopposed proteolytic activity, predominantly from neutrophil-derived proteases, chiefly neutrophil elastase. This leads to emphysema. The mechanisms subtending the liver disease are less well understood, but are probably due to a "gain-of function" inflammatory process in the liver, stoked by intracellular retention of aberrantly folded alpha-1 antitrypsin...
August 2016: Annals of the American Thoracic Society
Dae Hyun Kim, Carl F Pieper, Ali Ahmed, Cathleen S Colón-Emeric
Observational studies are an important source of evidence for evaluating treatment benefits and harms in older adults, but lack of comparability in the outcome risk factors between the treatment groups leads to confounding. Propensity score (PS) analysis is widely used in aging research to reduce confounding. Understanding the assumptions and pitfalls of common PS analysis methods is fundamental to applying and interpreting PS analysis. This review was developed based on a symposium of the American Geriatrics Society Annual Meeting on the use and interpretation of PS analysis in May 2014...
August 22, 2016: Journal of the American Geriatrics Society
(no author information available yet)
No abstract text is available yet for this article.
2016: Iowa Orthopaedic Journal
James A L Brown, Emer Bourke, Leif A Eriksson, Michael J Kerin
Two opposing enzyme classes regulate fundamental elements of genome maintenance, gene regulation and metabolism, either through addition of an acetyl moiety by histone acetyltransferases (HATs) or its removal by histone de-acetyltransferases (HDAC), and are exciting targets for drug development. Importantly, dysfunctional acetylation has been implicated in numerous diseases, including cancer. Within the HAT superfamily the MYST family holds particular interest, as its members are directly involved in the DNA damage response and repair pathways and crucially, several members have been shown to be down-regulated in common cancers (such as breast and prostate)...
August 15, 2016: Biochemical Society Transactions
Elisabete R C Monte, Cristiano Rossato, Ricardo Pariona Llanos, Lilian C Russo, Leandro M de Castro, Fábio C Gozzo, Christiane B de Araujo, Jean Pierre S Peron, Osvaldo Augusto Sant'Anna, Emer S Ferro, Vanessa Rioli
: Hundreds of intracellular peptides that are neither antigens nor neuropeptides are present in mammalian cells and tissues. These peptides correspond to fragments of cytosolic, nuclear or mitochondrial proteins. Proteasome inhibition affects the levels of the intracellular peptides in human cell lines. Here, the effect of immuneproteasome expression on the intracellular peptide profile was evaluated, and its functional significance was investigated. The expression of the immuneproteasome in HeLa cells was induced by interferon gamma treatment, and the relative concentrations of the intracellular peptides were compared to those of the control cells using isotope labeling and electron spray mass spectrometry...
August 11, 2016: Journal of Proteomics
Elizabeth Randell, Rachel McNamara, D Mark Davies, Eleri Owen-Jones, Nigel Kirby, Lianna Angel, Cheney Drew, Rebecca Cannings-John, Michelle Smalley, Anurag Saxena, Emer McDermott, Laura Stockwell, Petrus J de Vries, Kerry Hood, Julian R Sampson
BACKGROUND: Tuberous sclerosis complex (TSC) is a genetic disorder affecting about 1 in 6000 people and is characterised by the development of tumours in many organs, including the skin and kidneys, and by a range of neurological and neuropsychiatric manifestations. TSC-associated neuropsychiatric disorders (TAND) occur in the majority of those with TSC, and they have a significant impact on patients and their families, given the everyday impact of TAND on education, employment, family and social life...
2016: Trials
Emer McGowan
No abstract text is available yet for this article.
2016: Physiotherapy Canada. Physiothérapie Canada
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