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https://www.readbyqxmd.com/read/29691995/phylogeography-of-h5n1-avian-influenza-virus-in-indonesia
#1
E N Njoto, M Scotch, C M Bui, D C Adam, A A Chughtai, C R MacIntyre
Highly pathogenic avian influenza (HPAI) viruses of the H5N1 subtype are a major concern to human and animal health in Indonesia. This study aimed to characterize transmission dynamics of H5N1 over time using novel Bayesian phylogeography methods to identify factors which have influenced the spread of H5N1 in Indonesia. We used publicly available hemagglutinin sequence data sampled between 2003 and 2016 to model ancestral state reconstruction of HPAI H5N1 evolution. We found strong support for H5N1 transmission routes between provinces in Java Island and inter-island transmissions, such as between Nusa Tenggara and Kalimantan Islands, not previously described...
April 24, 2018: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29691989/targeting-of-rna-polymerase-ii-by-a-nuclear-legionella-pneumophila-dot-icm-effector-snpl
#2
Ralf Schuelein, Hugh Spencer, Laura F Dagley, Peng Fei Li, Lin Luo, Jennifer L Stow, Gilu Abraham, Thomas Naderer, Laura Gomez-Valero, Carmen Buchrieser, Chihiro Sugimoto, Junya Yamagishi, Andrew I Webb, Shivani Pasricha, Elizabeth L Hartland
The intracellular pathogen Legionella pneumophila influences numerous eukaryotic cellular processes through the Dot/Icm-dependent translocation of more than 300 effector proteins into the host cell. Although many translocated effectors localize to the Legionella replicative vacuole, other effectors can affect remote intracellular sites. Following infection, a subset of effector proteins localizes to the nucleus where they subvert host cell transcriptional responses to infection. Here we identified Lpg2519 (Lpp2587/Lpw27461), as a new nuclear-localized effector that we have termed SnpL...
April 24, 2018: Cellular Microbiology
https://www.readbyqxmd.com/read/29691983/worddriver-1-evaluating-the-efficacy-of-an-app-supported-decoding-intervention-for-children-with-reading-impairment
#3
Antonette Seiler, Suze Leitão, Mara Blosfelds
BACKGROUND: Fluent word reading is a key characteristic of skilled reading, yet most children with reading disorders have impaired word-reading skills. Previous research has demonstrated that multi-component interventions targeting phonemic awareness and the alphabetic principle are effective for children with reading disorders. However, about 25% of children fail to respond to these interventions. While it has been difficult to isolate the active ingredient, the findings of some studies suggest that tasks targeting phonological recoding and orthographic processing are essential elements in improving decoding...
April 24, 2018: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/29691902/3d-printed-functional-and-biological-materials-on-moving-freeform-surfaces
#4
Zhijie Zhu, Shuang-Zhuang Guo, Tessa Hirdler, Cindy Eide, Xiaoxiao Fan, Jakub Tolar, Michael C McAlpine
Conventional 3D printing technologies typically rely on open-loop, calibrate-then-print operation procedures. An alternative approach is adaptive 3D printing, which is a closed-loop method that combines real-time feedback control and direct ink writing of functional materials in order to fabricate devices on moving freeform surfaces. Here, it is demonstrated that the changes of states in the 3D printing workspace in terms of the geometries and motions of target surfaces can be perceived by an integrated robotic system aided by computer vision...
April 25, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29691649/training-and-transfer-effects-of-interference-control-training-in-children-and-young-adults
#5
Xin Zhao, Lina Jia
Many studies have examined transfer of working memory (WM) training improvements to non-trained cognitive tasks, with largely disappointing results. Interference control has been suggested to be a central feature of WM. However, studies examining transfer effects of a training program exclusively and directly targeting interference control are lacking. Forty-one 10‒12 year-old children and 47 19‒24 year-old adults were assigned to an adaptive interference control training or active control condition. Transfer of training effects to tasks measuring interference control, response inhibition, WM updating, task-switching, and non-verbal fluid intelligence were assessed during a 3-month follow-up session and/or an immediate post-training session...
April 24, 2018: Psychological Research
https://www.readbyqxmd.com/read/29691581/-upregulation-of-mir-498-suppresses-th17-cell-differentiation-by-targeting-stat3-in-rheumatoid-arthritis-patients
#6
Hai-Yan Xiang, Feng Pan, Ju-Zhen Yan, Li-Quan Hong, La-Hong Zhang, Yu-Hua Liu, Xiao Feng, Cheng-Song Cai
To investigate the effect and mechanism of miR-498 on Th17 cell differentiation of peripheral blood mononuclear cells (PMBCs) in rheumatoid arthritis (RA) patients, peripheral blood samples were collected from RA patients and healthy controls, respectively. The proportion of CD4+ IL-17+ T cells (Th17 cells) or CD4+ FOXP3+ T cells (Tregs) in T cells and the Th17/Treg ratio were identified by the flow cytometer. The STAT3 and miR-498 expression were measured by Western blot and real-time PCR, respectively. ELISA was used to detect IL-17 concentrations...
April 25, 2018: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/29691579/-angiotensin-ii-promotes-the-expression-of-txnip-through-angiotensin-ii-type-1-receptor-in-islet-%C3%AE-cells
#7
Yan-Jin Feng, Jin Wang, Zhu-Jie Cao, Dan Li, Hai-Yan Huo, Xu-Mei Zhang, Xiang-Ying Jiao
This study investigated the effect of angiotensin II (Ang II) on apoptosis and thioredoxin-interacting protein (TXNIP) expression in INS-1 islet cells and the underlying mechanism. INS-1 cells cultured in vitro were treated with different concentration of Ang II for different time, and the viability was measured using cell counting kit-8 (CCK-8). After treatment with 1 × 10-6 mol/L Ang II for 24 h, flow cytometry and Western blot were used to measure the cell apoptosis, and Western blot was used to analyze the protein expression of TXNIP, carbohydrate response element-binding protein (ChREBP) and angiotensin II type 1 receptor (AT1R)...
April 25, 2018: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/29691437/immunological-responses-following-administration-of-a-genotype-1a-1b-2-3a-quadrivalent-hcv-vlp-vaccine
#8
D Christiansen, L Earnest-Silveira, B Chua, P Meuleman, I Boo, B Grubor-Bauk, D C Jackson, Z Y Keck, S K H Foung, H E Drummer, E J Gowans, J Torresi
The significant public health problem of Hepatitis C virus (HCV) has been partially addressed with the advent of directly acting antiviral agents (DAAs). However, the development of an effective preventative vaccine would have a significant impact on HCV incidence and would represent a major advance towards controlling and possibly eradicating HCV globally. We previously reported a genotype 1a HCV viral-like particle (VLP) vaccine that produced neutralizing antibodies (NAb) and T cell responses to HCV. To advance this approach, we produced a quadrivalent genotype 1a/1b/2a/3a HCV VLP vaccine to produce broader immune responses...
April 24, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29691410/control-of-mechanical-pain-hypersensitivity-in-mice-through-ligand-targeted-photoablation-of-trkb-positive-sensory-neurons
#9
Rahul Dhandapani, Cynthia Mary Arokiaraj, Francisco J Taberner, Paola Pacifico, Sruthi Raja, Linda Nocchi, Carla Portulano, Federica Franciosa, Mariano Maffei, Ahmad Fawzi Hussain, Fernanda de Castro Reis, Luc Reymond, Emerald Perlas, Simone Garcovich, Stefan Barth, Kai Johnsson, Stefan G Lechner, Paul A Heppenstall
Mechanical allodynia is a major symptom of neuropathic pain whereby innocuous touch evokes severe pain. Here we identify a population of peripheral sensory neurons expressing TrkB that are both necessary and sufficient for producing pain from light touch after nerve injury in mice. Mice in which TrkB-Cre-expressing neurons are ablated are less sensitive to the lightest touch under basal conditions, and fail to develop mechanical allodynia in a model of neuropathic pain. Moreover, selective optogenetic activation of these neurons after nerve injury evokes marked nociceptive behavior...
April 24, 2018: Nature Communications
https://www.readbyqxmd.com/read/29691401/methylated-dnmt1-and-e2f1-are-targeted-for-proteolysis-by-l3mbtl3-and-crl4-dcaf5-ubiquitin-ligase
#10
Feng Leng, Jiekai Yu, Chunxiao Zhang, Salvador Alejo, Nam Hoang, Hong Sun, Fei Lu, Hui Zhang
Many non-histone proteins are lysine methylated and a novel function of this modification is to trigger the proteolysis of methylated proteins. Here, we report that the methylated lysine 142 of DNMT1, a major DNA methyltransferase that preserves epigenetic inheritance of DNA methylation patterns during DNA replication, is demethylated by LSD1. A novel methyl-binding protein, L3MBTL3, binds the K142-methylated DNMT1 and recruits a novel CRL4DCAF5 ubiquitin ligase to degrade DNMT1. Both LSD1 and PHF20L1 act primarily in S phase to prevent DNMT1 degradation by L3MBTL3-CRL4DCAF5 ...
April 24, 2018: Nature Communications
https://www.readbyqxmd.com/read/29691398/galectin-3-deficiency-drives-lupus-like-disease-by-promoting-spontaneous-germinal-centers-formation-via-ifn-%C3%AE
#11
Cristian Gabriel Beccaria, María Carolina Amezcua Vesely, Facundo Fiocca Vernengo, Ricardo Carlos Gehrau, María Cecilia Ramello, Jimena Tosello Boari, Melisa Gorosito Serrán, Juan Mucci, Eliane Piaggio, Oscar Campetella, Eva Virginia Acosta Rodríguez, Carolina Lucía Montes, Adriana Gruppi
Germinal centers (GC) are important sites for high-affinity and long-lived antibody induction. Tight regulation of GC responses is critical for maintaining self-tolerance. Here, we show that Galectin-3 (Gal-3) is involved in GC development. Compared with WT mice, Gal-3 KO mice have more GC B cells and T follicular helper cells, increased percentages of antibody-secreting cells and higher concentrations of immunoglobulins and IFN-γ in serum, and develop a lupus-like disease. IFN-γ blockade in Gal-3 KO mice reduces spontaneous GC formation, class-switch recombination, autoantibody production and renal pathology, demonstrating that IFN-γ overproduction sustains autoimmunity...
April 24, 2018: Nature Communications
https://www.readbyqxmd.com/read/29691380/increased-functional-connectivity-of-the-posterior-cingulate-cortex-with-the-lateral-orbitofrontal-cortex-in-depression
#12
Wei Cheng, Edmund T Rolls, Jiang Qiu, Xiongfei Xie, Dongtao Wei, Chu-Chung Huang, Albert C Yang, Shih-Jen Tsai, Qi Li, Jie Meng, Ching-Po Lin, Peng Xie, Jianfeng Feng
To analyze the functioning of the posterior cingulate cortex (PCC) in depression, we performed the first fully voxel-level resting state functional-connectivity neuroimaging analysis of depression of the PCC, with 336 patients with major depressive disorder and 350 controls. Voxels in the PCC had significantly increased functional connectivity with the lateral orbitofrontal cortex, a region implicated in non-reward and which is thereby implicated in depression. In patients receiving medication, the functional connectivity between the lateral orbitofrontal cortex and PCC was decreased back towards that in the controls...
April 25, 2018: Translational Psychiatry
https://www.readbyqxmd.com/read/29691378/blockade-of-the-c5a-c5ar-axis-alleviates-lung-damage-in-hdpp4-transgenic-mice-infected-with-mers-cov
#13
Yuting Jiang, Guangyu Zhao, Nianping Song, Pei Li, Yuehong Chen, Yan Guo, Junfeng Li, Lanying Du, Shibo Jiang, Renfeng Guo, Shihui Sun, Yusen Zhou
The pathogenesis of highly pathogenic Middle East respiratory syndrome coronavirus (MERS-CoV) remains poorly understood. In a previous study, we established an hDPP4-transgenic (hDPP4-Tg) mouse model in which MERS-CoV infection causes severe acute respiratory failure and high mortality accompanied by an elevated secretion of cytokines and chemokines. Since excessive complement activation is an important factor that contributes to acute lung injury after viral infection, in this study, we investigated the role of complement in MERS-CoV-induced lung damage...
April 24, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29691364/primary-care-colorectal-cancer-screening-correlates-with-breast-cancer-screening-implications-for-colorectal-cancer-screening-improvement-interventions
#14
Jennifer M Weiss, Nancy Pandhi, Sally Kraft, Aaron Potvien, Pascale Carayon, Maureen A Smith
OBJECTIVE: National colorectal cancer (CRC) screening rates have plateaued. To optimize interventions targeting those unscreened, a better understanding is needed of how this preventive service fits in with multiple preventive and chronic care needs managed by primary care providers (PCPs). This study examines whether PCP practices of other preventive and chronic care needs correlate with CRC screening. METHODS: We performed a retrospective cohort study of 90 PCPs and 33,137 CRC screening-eligible patients...
April 25, 2018: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29691336/a-viral-suppressor-modulates-the-plant-immune-response-early-in-infection-by-regulating-microrna-activity
#15
Robert Pertermann, Selvaraj Tamilarasan, Torsten Gursinsky, Giorgio Gambino, Jana Schuck, Claus Weinholdt, Hauke Lilie, Ivo Grosse, Ralph Peter Golbik, Vitantonio Pantaleo, Sven-Erik Behrens
Many viral suppressors (VSRs) counteract antiviral RNA silencing, a central component of the plant's immune response by sequestration of virus-derived antiviral small interfering RNAs (siRNAs). Here, we addressed how VSRs affect the activities of cellular microRNAs (miRNAs) during a viral infection by characterizing the interactions of two unrelated VSRs, the Tombusvirus p19 and the Cucumovirus 2b, with miRNA 162 (miR162), miR168, and miR403. These miRNAs regulate the expression of the important silencing factors Dicer-like protein 1 (DCL1) and Argonaute proteins 1 and 2 (AGO1 and AGO2), respectively...
April 24, 2018: MBio
https://www.readbyqxmd.com/read/29691329/striatal-direct-and-indirect-pathway-output-structures-are-differentially-altered-in-mouse-models-of-huntington-s-disease
#16
Joshua Barry, Garnik Akopian, Carlos Cepeda, Michael S Levine
The present study examined synaptic communication between direct and indirect output pathway striatal medium-sized spiny neurons (MSNs) and their target structures, the substantia nigra pars reticulata (SNr) and the external globus pallidus (GPe) in two mouse models of Huntington's disease (HD). Cre-recombination, optogenetics, and whole-cell patch clamp recordings were used to determine alterations in intrinsic and synaptic properties of SNr and GPe neurons from both male and female symptomatic R6/2 (>60 days) and pre- (2 months) or symptomatic (10-12 months) YAC128 mice...
April 24, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29691318/control-of-motor-coordination-by-astrocytic-tonic-gaba-release-through-modulation-of-excitation-inhibition-balance-in-cerebellum
#17
Junsung Woo, Joo Ok Min, Dae-Si Kang, Yoo Sung Kim, Guk Hwa Jung, Hyun Jung Park, Sunpil Kim, Heeyoung An, Jea Known, Jeongyeon Kim, Insop Shim, Hyung-Gun Kim, C Justin Lee, Bo-Eun Yoon
Tonic inhibition in the brain is mediated through an activation of extrasynaptic GABAA receptors by the tonically released GABA, resulting in a persistent GABAergic inhibitory action. It is one of the key regulators for neuronal excitability, exerting a powerful action on excitation/inhibition balance. We have previously reported that astrocytic GABA, synthesized by monoamine oxidase B (MAOB), mediates tonic inhibition via GABA-permeable bestrophin 1 (Best1) channel in the cerebellum. However, the role of astrocytic GABA in regulating neuronal excitability, synaptic transmission, and cerebellar brain function has remained elusive...
April 24, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29691302/repressing-the-repressor-ezh2-mediates-macrophage-activation
#18
Annette E Neele, Menno P J de Winther
In this issue of JEM , Zhang et al. (https://doi.org/10.1084/jem.20171417) show that the suppressive epigenetic enzyme Ezh2 is an important regulator of macrophage activation. The absence of Ezh2 leads to reduced cytokine secretion and suppresses macrophage-dependent disease development. They identify the antiinflammatory factor Socs3 as an important target for Ezh2 and thus show that regulation of suppressive histone modifications controls macrophage activation in disease.
April 24, 2018: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29691295/metformin-targets-mitochondrial-glycerophosphate-dehydrogenase-mgpdh-to-control-rate-of-oxidative-phosphorylation-and-growth-of-thyroid-cancer-in-vitro-and-in-vivo
#19
Joanna Klubo-Gwiezdzinska, Shilpa Thakur, Brianna Daley, Kelli Gaskins, Vasyl V Vasko, Myriem Boufraqech, Dhaval Patel, Carole Sourbier, Jeff M Reece, Sheue-Yann Cheng, Electron Kebebew, Sunita K Agarwal
PURPOSE: Mitochondrial glycerophosphate dehydrogenase (mGPDH) is the key enzyme connecting oxidative phosphorylation (OXPHOS) and glycolysis as well as a target of the antidiabetic drug metformin (MF) in the liver. There are no data on the expression and role of mGPDH as a metformin target in cancer. In this study, we evaluated mGPDH as a potential target of metformin in thyroid cancer and investigated its contribution in thyroid cancer metabolism. EXPERIMENTAL DESIGN: We analyzed mGPDH expression in 253 thyroid cancer and normal tissues by immunostaining and examined its expression and localization in thyroid cancer-derived cell lines (FTC133, BCPAP) by confocal microscopy...
April 24, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29691292/phenformin-induced-mitochondrial-dysfunction-sensitizes-hepatocellular-carcinoma-for-dual-inhibition-of-mtor
#20
Sonia Rosa Veiga, Xuemei Ge, Carol A Mercer, María Isabel Hernández-Alvarez, Hala Elnakat Thomas, Javier Hernández-Losa, Santiago Ramón Y Cajal, Antonio Zorzano, George Thomas, Sara C Kozma
PURPOSE: Hepatocellular carcinoma (HCC) ranks second in cancer mortality and has limited therapeutic options. We recently described the synergistic effect of allosteric and ATP-site competitive inhibitors against the mammalian target of rapamycin (mTOR) for the treatment of HCC. However, such inhibitors induce glycemia and increase mitochondrial efficiency. Here we determined whether the mitochondrial complex I inhibitor Phenformin could reverse both side effects, impose an energetic-stress on cancer cells and suppress the growth of HCC...
April 24, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
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