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https://www.readbyqxmd.com/read/28225006/altered-enhancer-transcription-underlies-huntington-s-disease-striatal-transcriptional-signature
#1
Stéphanie Le Gras, Céline Keime, Anne Anthony, Caroline Lotz, Lucie De Longprez, Emmanuel Brouillet, Jean-Christophe Cassel, Anne-Laurence Boutillier, Karine Merienne
Epigenetic and transcriptional alterations are both implicated in Huntington's disease (HD), a progressive neurodegenerative disease resulting in degeneration of striatal neurons in the brain. However, how impaired epigenetic regulation leads to transcriptional dysregulation in HD is unclear. Here, we investigated enhancer RNAs (eRNAs), a class of long non-coding RNAs transcribed from active enhancers. We found that eRNAs are expressed from many enhancers of mouse striatum and showed that a subset of those eRNAs are deregulated in HD vs control mouse striatum...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28222752/dendritic-cells-macrophages-nk-and-cd8-t-lymphocytes-play-pivotal-roles-in-controlling-hsv-1-in-the-trigeminal-ganglia-by-producing-il1-beta-inos-and-granzyme-b
#2
Natália Lucinda, Maria Marta Figueiredo, Natália Lima Pessoa, Beatriz Senra Álvares da Silva Santos, Graciela Kunrath Lima, Arthur Molinari Freitas, Alexandre Magalhães Vieira Machado, Erna Geessien Kroon, Lis Ribeiro do Valle Antonelli, Marco Antônio Campos
BACKGROUND: Herpes simplex virus type 1 (HSV-1) cause not only mild symptoms but also blindness and encephalitis. It was previously shown that the immune response against HSV-1 occurs mainly in the trigeminal ganglia (TG) and that Toll-like receptors 2 and 9 (TLR2/9) are important in mediating this response. It was also demonstrated that iNOS (nitric oxide synthase) and interleukin 1 beta (IL-1β) play an essential role in the defense against HSV-1 infection. Importantly, the present work aimed to identify the primary cells responsible for iNOS and IL-1β production and search for other important molecules and cells that might or might not depend on TLR2/9 receptors to mediate the immune response against HSV-1...
February 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28155296/paraquat-intoxication-and-associated-pathological-findings-in-three-dogs-in-south-africa
#3
June H Williams, Zandri Whitehead, Erna Van Wilpe
Paraquat is a bipyridylium non-selective contact herbicide commonly used worldwide. When ingestion occurs by humans and animals either accidentally, intentionally or maliciously, paraquat selectively accumulates in the lungs resulting in the production of oxygen-free radicals, causing membrane damage and cell death. Intoxicated subjects typically show progressive and fatal pulmonary haemorrhage, collapse and oedema. In individuals surviving the acute phase, pulmonary fibrosis develops. Gastrointestinal-, renal- and central nervous system clinical signs may also occur...
November 9, 2016: Journal of the South African Veterinary Association
https://www.readbyqxmd.com/read/28153370/understanding-the-use-of-sigma-metrics-in-hemoglobin-a1c-analysis
#4
REVIEW
Erna Lenters-Westra, Emma English
This study uses three unique data sets to show the state of the art of hemoglobin A1c (HbA1c) analyzers in a range of settings and compares their performance against the international guidance set by the International Federation of Clinical Chemistry and Laboratory Medicine task force for HbA1c standardization. The data are used to show the effect of tightening those criteria, and the study serves as a guide to the practical implementation of the sigma-metrics approach in a range of clinical settings.
March 2017: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/28118867/quantifying-airflow-limitation-and-snoring-during-sleep
#5
REVIEW
Erna Sif Arnardottir, Thorarinn Gislason
Traditional techniques to assess respiratory disturbances during sleep allow the accurate diagnosis of moderate and severe cases of obstructive sleep apnea but have serious limitations in mild obstructive sleep apnea and cases with signs of obstructive breathing during sleep without apneas and hypopneas. This article describes advantages and limitations of available techniques to measure obstructive breathing during sleep by measuring flow limitation, respiratory effort, and snoring. Standardization of these techniques is crucial for moving the field further and understanding the pathophysiologic role of obstructive breathing itself, and not solely focusing on the associated outcomes of arousals and oxygen desaturations...
December 2016: Sleep Medicine Clinics
https://www.readbyqxmd.com/read/28118412/whole-blood-donation-affects-the-interpretation-of-hemoglobin-a1c
#6
Angelique Dijkstra, Erna Lenters-Westra, Wim de Kort, Arlinke G Bokhorst, Henk J G Bilo, Robbert J Slingerland, Michel J Vos
INTRODUCTION: Several factors, including changed dynamics of erythrocyte formation and degradation, can influence the degree of hemoglobin A1c (HbA1c) formation thereby affecting its use in monitoring diabetes. This study determines the influence of whole blood donation on HbA1c in both non-diabetic blood donors and blood donors with type 2 diabetes. METHODS: In this observational study, 23 non-diabetic blood donors and 21 blood donors with type 2 diabetes donated 475 mL whole blood and were followed prospectively for nine weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28117683/promoter-motifs-in-ncldvs-an-evolutionary-perspective
#7
REVIEW
Graziele Pereira Oliveira, Ana Cláudia Dos Santos Pereira Andrade, Rodrigo Araújo Lima Rodrigues, Thalita Souza Arantes, Paulo Victor Miranda Boratto, Ludmila Karen Dos Santos Silva, Fábio Pio Dornas, Giliane de Souza Trindade, Betânia Paiva Drumond, Bernard La Scola, Erna Geessien Kroon, Jônatas Santos Abrahão
For many years, gene expression in the three cellular domains has been studied in an attempt to discover sequences associated with the regulation of the transcription process. Some specific transcriptional features were described in viruses, although few studies have been devoted to understanding the evolutionary aspects related to the spread of promoter motifs through related viral families. The discovery of giant viruses and the proposition of the new viral order Megavirales that comprise a monophyletic group, named nucleo-cytoplasmic large DNA viruses (NCLDV), raised new questions in the field...
January 20, 2017: Viruses
https://www.readbyqxmd.com/read/28106992/discovery-of-n-pyridin-4-yl-1-5-naphthyridin-2-amines-as-potential-tau-pathology-pet-tracers-for-alzheimer-s-disease
#8
Frederik J R Rombouts, José-Ignacio Andrés, Manuela Ariza, José Manuel Alonso, Nigel Austin, Astrid Bottelbergs, Lu Chen, Vladimir Chupakhin, Erna Cleiren, Katleen Fierens, Alberto Fontana, Xavier Langlois, Joseph E Leenaerts, Jonas Mariën, Carolina Martínez Lamenca, Rhys Salter, Mark E Schmidt, Paula Te Riele, Cindy Wintmolders, Andrés A Trabanco, Wei Zhang, Gregor Macdonald, Dieder Moechars
A mini-HTS on 4000 compounds selected using 2D fragment-based similarity and 3D pharmacophoric and shape similarity to known selective tau aggregate binders identified N-(6-methylpyridin-2-yl)quinolin-2-amine 10 as a novel potent binder to human AD aggregated tau with modest selectivity versus aggregated β-amyloid (Aβ). Initial medicinal chemistry efforts identified key elements for potency and selectivity, as well as suitable positions for radiofluorination, leading to a first generation of fluoroalkyl-substituted quinoline tau binding ligands with suboptimal physicochemical properties...
February 10, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28098542/detection-of-vaccinia-virus-in-urban-domestic-cats-brazil
#9
Galileu Barbosa Costa, Júlia Bahia Miranda, Gregório Guilherme Almeida, Jaqueline Silva de Oliveira, Mariana Siqueira Pinheiro, Stefanne Aparecida Gonçalves, Jenner Karlisson Pimenta Dos Reis, Ricardo Gonçalves, Paulo César Peregrino Ferreira, Cláudio Antônio Bonjardim, Jônatas Santos Abrahão, Erna Geessien Kroon, Giliane de Souza Trindade
We investigated possible vaccinia virus (VACV) in urban house cats in Brazil. Serum samples from 6 cats were positive for VACV by PCR, indicating likely VACV circulation among house cats in urban areas of Brazil. This finding highlights the importance of epidemiologic surveillance to avoid outbreaks among urban human populations.
February 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28094574/inferring-a-role-for-methylation-of-intergenic-dna-in-the-regulation-of-genes-aberrantly-expressed-in-precursor-b-cell-acute-lymphoblastic-leukemia
#10
Md Almamun, Olha Kholod, Alexei J Stuckel, Benjamin T Levinson, Nathan T Johnson, Gerald L Arthur, J Wade Davis, Kristen H Taylor
A complete understanding of the mechanisms involved in the development of pre-B ALL is lacking. In this study, we integrated DNA methylation data and gene expression data to elucidate the impact of aberrant intergenic DNA methylation on gene expression in pre-B ALL. We found a subset of differentially methylated intergenic loci that were associated with altered gene expression in pre-B ALL patients. Notably, 84% of these regions were also bound by transcription factors (TF) known to play roles in differentiation and B-cell development in a lymphoblastoid cell line...
January 17, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28087167/lingering-questions-about-enhancer-rna-and-enhancer-transcription-coupled-genomic-instability
#11
REVIEW
Gerson Rothschild, Uttiya Basu
Intergenic and intragenic enhancers found inside topologically associated regulatory domains (TADs) express noncoding RNAs, known as enhancer RNAs (eRNAs). Recent studies have indicated these eRNAs play a role in gene regulatory networks by controlling promoter and enhancer interactions and topology of higher-order chromatin structure. Misregulation of enhancer and promoter associated noncoding RNAs (ncRNAs) could stabilize deleterious secondary DNA structures, noncoding RNA associated DNA/RNA hybrid formation, and promote collisions of transcription complexes with replisomes...
February 2017: Trends in Genetics: TIG
https://www.readbyqxmd.com/read/28077249/altered-mucosal-expression-of-micrornas-in-pediatric-patients-with-inflammatory-bowel-disease
#12
Nóra Judit Béres, Zoltán Kiss, Zsófia Sztupinszki, Gábor Lendvai, András Arató, Erna Sziksz, Ádám Vannay, Attila J Szabó, Katalin Eszter Müller, Áron Cseh, Kriszta Boros, Gábor Veres
INTRODUCTION: MicroRNAs (miRs) came recently into focus as promising novel research targets offering new insights into the pathogenesis of inflammatory bowel diseases (IBD). AIMS: The aim of our study was to identify a pediatric IBD (pIBD) characteristic miR profile serving as potential Crohn's disease (CD) and ulcerative colitis (UC) specific diagnostic pattern and to further analyze the related target genes. METHODS: Small RNA sequencing was performed on inflamed and intact colonic biopsies of CD, and control patients...
December 27, 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28064167/potentially-inappropriate-prescribing-to-older-patients-in-primary-care-in-the-netherlands-a-retrospective-longitudinal-study
#13
Linette Bruin-Huisman, Ameen Abu-Hanna, Henk C P M van Weert, Erna Beers
BACKGROUND: potentially inappropriate prescribing (PIP) is associated with adverse health effects in older patients. PIP comprises prescription of potentially inappropriate medications (PIMs) and potential prescribing omissions (PPOs). OBJECTIVE: to estimate the prevalence of PIMs and PPOs among older patients in primary care. DESIGN: retrospective longitudinal study. SETTING: routinely collected data of 182,000 patients of 49 general practitioners (GPs) gathered in the GPs' database of the Academic Medical Center of Amsterdam, the Netherlands...
January 6, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28061024/beyond-the-code-a-guide-to-the-description-and-documentation-of-biodiversity-in-ciliated-protists-alveolata-ciliophora
#14
Alan Warren, David J Patterson, Micah Dunthorn, John C Clamp, Undine E M Achilles-Day, Erna Aescht, Saleh A Al-Farraj, Saleh Al-Quraishy, Khaled Al-Rasheid, Martin Carr, John G Day, Marc Dellinger, Hamed A El-Serehy, Yangbo Fan, Feng Gao, Shan Gao, Jun Gong, Renu Gupta, Xiaozhong Hu, Komal Kamra, Gaytha Langlois, Xiaofeng Lin, Diana Lipscomb, Christopher S Lobban, Pierangelo Luporini, Denis H Lynn, Honggang Ma, Miroslav Macek, Jacqueline Mackenzie-Dodds, Seema Makhija, Robert I Mansergh, Mercedes Martín-Cereceda, Nettie McMiller, David J S Montagnes, Nikolaeva Svetlana, Geoffrey Odhiambo Ong'ondo, Blanca Pérez-Uz, Jasmine Purushothaman, Pablo Quintela-Alonso, Johana Rotterová, Luciana Santoferrara, Chen Shao, Zhuo Shen, Xinlu Shi, Weibo Song, Thorsten Stoeck, Antonietta La Terza, Adriana Vallesi, Mei Wang, Thomas Weisse, Krzysztof Wiackowski, Lei Wu, Kuidong Xu, Zhenzhen Yi, Rebecca Zufall, Sabine Agatha
Recent advances in molecular technology have revolutionized research on all aspects of the biology of organisms, including ciliates, and created unprecedented opportunities for pursuing a more integrative approach to investigation of biodiversity. However, this goal is complicated by large gaps and inconsistencies that still exist in the foundation of basic information about biodiversity of ciliates. The present paper reviews issues relating to the taxonomy of ciliates and presents specific recommendations for best practice in the observation and documentation of their biodiversity...
January 6, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28042078/home-based-palliative-care-for-children-with-incurable-cancer-long-term-perspectives-of-and-impact-on-general-practitioners
#15
Ivana M M van der Geest, Patrick J E Bindels, Saskia M F Pluijm, Erna M C Michiels, Agnes van der Heide, Rob Pieters, Anne-Sophie E Darlington, Marry M van den Heuvel-Eibrink
CONTEXT: Although a large percentage of children with advanced-stage cancer die at home, remarkably little information is available regarding the experience of general practitioners (GPs) with respect to providing home-based palliative care to children with incurable cancer. OBJECTIVES: To explore the perspectives of GPs who care for children with advanced-stage cancer in a home-based setting. METHODS: In this cross-sectional study, 144 GPs who provided home-based palliative care to 150 children with incurable cancer from 2001 through 2010 were invited to complete a questionnaire addressing their perspectives regarding: 1) symptom management, 2) collaboration with other health care professionals, 3) the child's death and care after death and 4) impact of having provided palliative care, scored on distress thermometer (range 0-10)...
December 29, 2016: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28034900/the-sensory-difference-threshold-of-menthol-odor-in-flavored-tobacco-determined-by-combining-sensory-and-chemical-analysis
#16
Erna J Z Krüsemann, Johannes W J M Cremers, Wouter F Visser, Pieter H Punter, Reinskje Talhout
Cigarettes are an often-used consumer product, and flavor is an important determinant of their product appeal. Cigarettes with strong nontobacco flavors are popular among young people, and may facilitate smoking initiation. Discriminating flavors in tobacco is important for regulation purposes, for instance to set upper limits to the levels of important flavor additives. We provide a simple and fast method to determine the human odor difference threshold for flavor additives in a tobacco matrix, using a combination of chemical and sensory analysis...
December 29, 2016: Chemical Senses
https://www.readbyqxmd.com/read/28004878/the-first-isolation-and-characterisation-of-the-protist-labyrinthula-sp-in-southeastern-australia
#17
Brooke K Sullivan, Katie L Robinson, Stacey M Trevathan-Tackett, Erna S Lilje, Frank H Gleason, Osu Lilje
As a result of anthropogenic influences and global climate change, emerging infectious marine diseases are thought to be increasingly more common and more severe than in the past. The aim of our investigation was to confirm the presence of Labyrinthula, the aetiological agent of the seagrass wasting disease, in Southeastern Australia and provide the first isolation and characterisation of this protist, in Australia. Colonies and individual cells were positively identified as Labyrinthula using published descriptions, diagrams, and photographs...
December 22, 2016: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28000722/an-ifih1-gene-polymorphism-associated-with-risk-for-autoimmunity-regulates-canonical-antiviral-defence-pathways-in-coxsackievirus-infected-human-pancreatic-islets
#18
Erna Domsgen, Katharina Lind, Lingjia Kong, Michael H Hühn, Omid Rasool, Frank van Kuppeveld, Olle Korsgren, Riitta Lahesmaa, Malin Flodström-Tullberg
The IFIH1 gene encodes the pattern recognition receptor MDA5. A common polymorphism in IFIH1 (rs1990760, A946T) confers increased risk for autoimmune disease, including type 1-diabetes (T1D). Coxsackievirus infections are linked to T1D and cause beta-cell damage in vitro. Here we demonstrate that the rs1990760 polymorphism regulates the interferon (IFN) signature expressed by human pancreatic islets following Coxsackievirus infection. A strong IFN signature was associated with high expression of IFNλ1 and IFNλ2, linking rs1990760 to the expression of type III IFNs...
December 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27998218/prevalence-and-risk-factors-of-early-endocrine-disorders-in-childhood-brain-tumor-survivors-a-nationwide-multicenter-study
#19
Sarah C Clement, Antoinette Y N Schouten-van Meeteren, Annemieke M Boot, Hedy L Claahsen-van der Grinten, Bernd Granzen, K Sen Han, Geert O Janssens, Erna M Michiels, A S Paul van Trotsenburg, W Peter Vandertop, Dannis G van Vuurden, Leontien C M Kremer, Hubert N Caron, Hanneke M van Santen
Purpose To evaluate the prevalence of, and risk factors for, early endocrine disorders in childhood brain tumor survivors (CBTS). Patients and Methods This nationwide study cohort consisted of 718 CBTS who were diagnosed between 2002 and 2012, and who survived ≥ 2 years after diagnosis. Patients with craniopharyngeoma or a pituitary gland tumor were excluded. Results of all endocrine investigations, which were performed at diagnosis and during follow-up, were collected from patient charts. Multivariable logistic regression was used to study associations between demographic and tumor- and treatment-related variables and the prevalence of early endocrine disorders...
December 20, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27983492/meningitis-associated-with-simultaneous-infection-by-multiple-dengue-virus-serotypes-in-children-brazil
#20
Paula Eillanny Silva Marinho, Danilo Bretas de Oliveira, Talitah Michel Sanchez Candiani, Ana Paula Correia Crispim, Pedro Paulo Martins Alvarenga, Fabrizia Cristina Dos Santos Castro, Jonatas Santos Abrahão, Maria Rios, Roney Santos Coimbra, Erna Geessien Kroon
To determine the causes of viral meningitis, we analyzed 22 cerebrospinal fluid samples collected during the 2014-2015 dengue epidemics in Brazil. We identified 3 serotypes of dengue virus (DENV-1, -2, and -3), as well as co-infection with 2 or 3 serotypes. We also detected the Asian II genotype of DENV-2.
January 2017: Emerging Infectious Diseases
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