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https://www.readbyqxmd.com/read/27927008/microrna-296-5p-promotes-invasiveness-through-downregulation-of-nerve-growth-factor-receptor-and-caspase-8
#1
Hong Lee, Chang Hoon Shin, Hye Ree Kim, Kyung Hee Choi, Hyeon Ho Kim
Glioblastomas (GBM) are very difficult to treat and their aggressiveness is one of the main reasons for this as well as for the frequent recurrences. MicroRNAs posttranscriptionally regulate their target genes through interaction between their seed sequence and 3'UTR of the target mRNAs. We previously reported that miR-296-3p is regulated by neurofibromatosis 2 (NF2) and enhances the invasiveness of GBM cells via SOCS2/STAT3. In this study, we investigated whether miR-296-5p, which originates from the same precursor miRNA as miR-296-3p, can increase the invasiveness of GBM cells...
December 8, 2016: Molecules and Cells
https://www.readbyqxmd.com/read/27926996/small-molecule-modulator-of-sigma-2-receptor-is-neuroprotective-and-reduces-cognitive-deficits-and-neuro-inflammation-in-experimental-models-of-alzheimer-s-disease
#2
Bitna Yi, James J Sahn, Pooneh Memar Ardestani, Andrew K Evans, Luisa Scott, Jessica Z Chan, Sangeetha Iyer, Ashley Crisp, Gabriella Zuniga, Jonathan Pierce-Shimomura, Stephen F Martin, Mehrdad Shamloo
Accumulating evidence suggests that modulating the sigma 2 receptor (Sig2R) can provide beneficial effects for neurodegenerative diseases. Herein, we report the identification of a novel class of Sig2R binding ligands and their cellular and in vivo activity in experimental models of Alzheimer's disease (AD). We report that SAS-0132 and DKR-1051, selective ligands of Sig2R, modulate intracellular Ca(2+) levels in human SK-N-SH neuroblastoma cells. The Sig2R antagonists SAS-0132 and JVW-1009 are neuroprotective in a C...
December 7, 2016: Journal of Neurochemistry
https://www.readbyqxmd.com/read/27926989/targeting-gm-csf-in-epithelial-and-vascular-remodeling-in-experimental-eosinophilic-esophagitis
#3
Eóin N McNamee, Kathryn A Biette, Juliet Hammer, Rachel Harris, Heather Miyazawa, James J Lee, Glenn T Furuta, Joanne C Masterson
BACKGROUND: Eosinophilic esophagitis (EoE) is a chronic antigen-mediated clinicopathologic disease of the esophagus characterized by an eosinophil-predominant inflammatory infiltrate. A clinical hallmark is extensive tissue remodeling including basal zone hyperplasia, fibrosis and angiogenesis. However, the cellular mechanisms responsible for these processes are not fully defined. We hypothesized that targeting GM-CSF (an agonist cytokine linked with eosinophil survival and activation) would be protective in a pre-clinical model of EoE...
December 7, 2016: Allergy
https://www.readbyqxmd.com/read/27926981/efficacy-of-allergen-immunotherapy-in-reducing-the-likelihood-of-developing-new-allergen-sensitizations-a-systematic-review
#4
REVIEW
Danilo Di Bona, Antonella Plaia, Maria Stefania Leto-Barone, Simona La Piana, Luigi Macchia, Gabriele Di Lorenzo
BACKGROUND: Guidelines and position papers indicate that allergen immunotherapy (AIT) is the only disease-modifying treatment, including prevention of the onset of new allergen sensitizations. However, this preventive effect was shown by only a few observational studies. Our aim was to systematically review the efficacy of AIT in preventing the onset of new allergen sensitizations. METHODS: Computerized bibliographic searches of MEDLINE, EMBASE, and the Cochrane Library (through June 2015) were supplemented with manual searches of reference lists...
December 7, 2016: Allergy
https://www.readbyqxmd.com/read/27926976/are-cytokines-useful-biomarkers-to-determine-disease-severity-in-neonates-with-congenital-diaphragmatic-hernia
#5
Thomas Schaible, Janine Reineke, Ludwig Gortner, Dominik Monz, Regine Schaffelder, Erol Tutdibi
Background This study investigates plasma cytokine levels in neonates with the more common left-sided congenital diaphragmatic hernia (CDH) and correlates them with severity of disease indicated by position of the liver. An intrathoracic part of liver is associated with higher need for extracorporeal membrane oxygenation (ECMO) and higher risk for chronic lung disease (CLD). Methods A total of 28 newborns with CDH were subdivided by their liver position in partially intrathoracic (n = 16) and only abdominal (n = 12) position...
December 7, 2016: American Journal of Perinatology
https://www.readbyqxmd.com/read/27926971/management-of-endometriomas
#6
Ludovico Muzii, Chiara Di Tucci, Mara Di Feliciantonio, Giulia Galati, Ludovica Verrelli, Violante Di Donato, Claudia Marchetti, Pierluigi Benedetti Panici
Ovarian endometriomas affect 17 to 44% of women with endometriosis, and are often associated with pelvic pain and infertility. Treatment options include expectant management, medical and/or surgical treatment, and in vitro fertilization and embryo transfer (IVF-ET). The choice of treatment depends mostly on the associated symptoms. In most cases, surgery is the preferred choice, since endometriomas do not respond to medical treatment, which may only treat associated pain. In case of infertility, IVF-ET may be a suitable alternative to surgery, particularly when there is no associated pain...
December 7, 2016: Seminars in Reproductive Medicine
https://www.readbyqxmd.com/read/27926943/the-mouse-cytomegalovirus-gene-m42-targets-surface-expression-of-the-protein-tyrosine-phosphatase-cd45-in-infected-macrophages
#7
Nadine Thiel, Kirsten A Keyser, Niels A W Lemmermann, Jennifer D Oduro, Karen Wagner, Carina Elsner, Anne Halenius, Tihana Lenac Roviš, Melanie M Brinkmann, Stipan Jonjić, Luka Cicin-Sain, Martin Messerle
The receptor-like protein tyrosine phosphatase CD45 is expressed on the surface of cells of hematopoietic origin and has a pivotal role for the function of these cells in the immune response. Here we report that following infection of macrophages with mouse cytomegalovirus (MCMV) the cell surface expression of CD45 is drastically diminished. Screening of a set of MCMV deletion mutants allowed us to identify the viral gene m42 of being responsible for CD45 down-modulation. Moreover, expression of m42 independent of viral infection upon retroviral transduction of the RAW264...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27926942/actin-related-protein-2-arp2-and-virus-induced-filopodia-facilitate-human-respiratory-syncytial-virus-spread
#8
Masfique Mehedi, Thomas McCarty, Scott E Martin, Cyril Le Nouën, Eugen Buehler, Yu-Chi Chen, Margery Smelkinson, Sundar Ganesan, Elizabeth R Fischer, Linda G Brock, Bo Liang, Shirin Munir, Peter L Collins, Ursula J Buchholz
Human respiratory syncytial virus (RSV) is an enveloped RNA virus that is the most important viral cause of acute pediatric lower respiratory tract illness worldwide, and lacks a vaccine or effective antiviral drug. The involvement of host factors in the RSV replicative cycle remains poorly characterized. A genome-wide siRNA screen in human lung epithelial A549 cells identified actin-related protein 2 (ARP2) as a host factor involved in RSV infection. ARP2 knockdown did not reduce RSV entry, and did not markedly reduce gene expression during the first 24 hr of infection, but decreased viral gene expression thereafter, an effect that appeared to be due to inhibition of viral spread to neighboring cells...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27926934/public-health-interventions-for-aedes-control-in-the-time-of-zikavirus-a-meta-review-on-effectiveness-of-vector-control-strategies
#9
Maha Bouzid, Julii Brainard, Lee Hooper, Paul R Hunter
BACKGROUND: There is renewed interest in effective measures to control Zika and dengue vectors. A synthesis of published literature with a focus on the quality of evidence is warranted to determine the effectiveness of vector control strategies. METHODOLOGY: We conducted a meta-review assessing the effectiveness of any Aedes control measure. We searched Scopus and Medline for relevant reviews through to May 2016. Titles, abstracts and full texts were assessed independently for inclusion by two authors...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27926932/epsin-family-member-3-and-ribosome-related-genes-are-associated-with-late-metastasis-in-estrogen-receptor-positive-breast-cancer-and-long-term-survival-in-non-small-cell-lung-cancer-using-a-genome-wide-identification-and-validation-strategy
#10
Birte Hellwig, Katrin Madjar, Karolina Edlund, Rosemarie Marchan, Cristina Cadenas, Anne-Sophie Heimes, Katrin Almstedt, Antje Lebrecht, Isabel Sicking, Marco J Battista, Patrick Micke, Marcus Schmidt, Jan G Hengstler, Jörg Rahnenführer
BACKGROUND: In breast cancer, gene signatures that predict the risk of metastasis after surgical tumor resection are mainly indicative of early events. The purpose of this study was to identify genes linked to metastatic recurrence more than three years after surgery. METHODS: Affymetrix HG U133A and Plus 2.0 array datasets with information on metastasis-free, disease-free or overall survival were accessed via public repositories. Time restricted Cox regression models were used to identify genes associated with metastasis during or after the first three years post-surgery (early- and late-type genes)...
2016: PloS One
https://www.readbyqxmd.com/read/27926929/functional-and-evolutionary-analyses-identify-proteolysis-as-a-general-mechanism-for-nlrp1-inflammasome-activation
#11
Joseph Chavarría-Smith, Patrick S Mitchell, Alvin M Ho, Matthew D Daugherty, Russell E Vance
Inflammasomes are cytosolic multi-protein complexes that initiate immune responses to infection by recruiting and activating the Caspase-1 protease. Human NLRP1 was the first protein shown to form an inflammasome, but its physiological mechanism of activation remains unknown. Recently, specific variants of mouse and rat NLRP1 were found to be activated upon N-terminal cleavage by the anthrax lethal factor protease. However, agonists for other NLRP1 variants, including human NLRP1, are not known, and it remains unclear if they are also activated by proteolysis...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27926925/dengue-in-the-middle-east-and-north-africa-a-systematic-review
#12
John M Humphrey, Natalie B Cleton, Chantal B E M Reusken, Marshall J Glesby, Marion P G Koopmans, Laith J Abu-Raddad
BACKGROUND: Dengue virus (DENV) infection is widespread and its disease burden has increased in past decades. However, little is known about the epidemiology of dengue in the Middle East and North Africa (MENA). METHODOLOGY / PRINCIPAL FINDINGS: Following Cochrane Collaboration guidelines and reporting our findings following PRISMA guidelines, we systematically reviewed available records across MENA describing dengue occurrence in humans (prevalence studies, incidence studies, and outbreak reports), occurrence of suitable vectors (Aedes aegypti and Aedes albopictus), and DENV vector infection rates...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27926923/deforestation-impacts-on-bat-functional-diversity-in-tropical-landscapes
#13
Rodrigo García-Morales, Claudia E Moreno, Ernesto I Badano, Iriana Zuria, Jorge Galindo-González, Alberto E Rojas-Martínez, Eva S Ávila-Gómez
Functional diversity is the variability in the functional roles carried out by species within ecosystems. Changes in the environment can affect this component of biodiversity and can, in turn, affect different processes, including some ecosystem services. This study aimed to determine the effect of forest loss on species richness, abundance and functional diversity of Neotropical bats. To this end, we identified six landscapes with increasing loss of forest cover in the Huasteca region of the state of Hidalgo, Mexico...
2016: PloS One
https://www.readbyqxmd.com/read/27926905/sildenafil-in-pregnancy-a-systematic-review-of-maternal-tolerance-and-obstetric-and-perinatal-outcomes
#14
Liam Dunn, Ristan Greer, Vicki Flenady, Sailesh Kumar
INTRODUCTION: This systematic review evaluates maternal tolerance and obstetric and perinatal outcomes following sildenafil citrate (SC) use in human pregnancy. DATA SOURCES: Scopus, PubMed, Cochrane Library, Web of Science, Embase, and Google Scholar were searched. Relevant full-text studies including case series and reports in English were included. Publications were excluded if the pregnancy was terminated or if SC was used only at conception. RESULTS: Sixteen studies were included (n = 165)...
December 8, 2016: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/27926892/do-mobile-phone-applications-improve-glycemic-control-hba1c-in-the-self-management-of-diabetes-a-systematic-review-meta-analysis-and-grade-of-14-randomized-trials
#15
REVIEW
Can Hou, Ben Carter, Jonathan Hewitt, Trevor Francisa, Sharon Mayor
OBJECTIVE: To investigate the effect of mobile phone applications (apps) on glycemic control (HbA1c) in the self-management of diabetes. RESEARCH DESIGN AND METHODS: Relevant studies that were published between 1 January 1996 and 1 June 2015 were searched from five databases: Medline, CINAHL, Cochrane Library, Web of Science, and Embase. Randomized controlled trials that evaluated diabetes apps were included. We conducted a systematic review with meta-analysis and GRADE (Grading of Recommendations Assessment, Development and Evaluation) of the evidence...
November 2016: Diabetes Care
https://www.readbyqxmd.com/read/27926889/precision-medicine-diabetes-and-the-u-s-food-and-drug-administration
#16
Robert J Meyer
The U.S. Food and Drug Administration (FDA) has long sought to achieve the broader use of personalized medicine, which is better targeting of FDA-approved therapies through incorporating precise knowledge of a patient's underlying condition to therapies optimally chosen to match those needs. While some strides have been made in precision medicine-particularly in oncology and rare genetic diseases-most of the standard general medicine indications have yet to realize the benefits of precision-guided therapies...
November 2016: Diabetes Care
https://www.readbyqxmd.com/read/27926881/remediation-of-arsenic-contaminated-groundwater-by-in-situ-stimulating-biogenic-precipitation-of-iron-sulfides
#17
Kunfu Pi, Yanxin Wang, Xianjun Xie, Teng Ma, Yaqing Liu, Chunli Su, Yapeng Zhu, Zhiqiang Wang
Severe health problems due to elevated arsenic (As) in groundwater have made it urgent to develop cost-effective technologies for As removal. This field experimental study tested the feasibility of in-situ As immobilization via As incorporation into newly formed biogenic Fe(II) sulfides in a typical As-affected strongly reducing aquifer at the central part of Datong Basin, China. After periodic supply of FeSO4 into the aquifer for 25 d to stimulate microbial sulfate reduction, dissolved sulfide concentrations increased during the experiment, but the supplied Fe(II) reacted quickly with sulfide to form Fe(II)-sulfides existing majorly as mackinawite as well as a small amount of pyrite-like minerals in sediments, thereby restricting sulfide build-up in groundwater...
October 22, 2016: Water Research
https://www.readbyqxmd.com/read/27926877/ptbp1-and-ptbp2-serve-both-specific-and-redundant-functions-in-neuronal-pre-mrna-splicing
#18
John K Vuong, Chia-Ho Lin, Min Zhang, Liang Chen, Douglas L Black, Sika Zheng
Families of alternative splicing regulators often contain multiple paralogs presumed to fulfill different functions. Polypyrimidine tract binding proteins PTBP1 and PTBP2 reprogram developmental pre-mRNA splicing in neurons, but how their regulatory networks differ is not understood. To compare their targeting, we generated a knockin allele that conditionally expresses PTBP1. Bred to a Ptbp2 knockout, the transgene allowed us to compare the developmental and molecular phenotypes of mice expressing only PTBP1, only PTBP2, or neither protein in the brain...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27926873/foxa1-directs-h3k4-monomethylation-at-enhancers-via-recruitment-of-the-methyltransferase-mll3
#19
Kamila M Jozwik, Igor Chernukhin, Aurelien A Serandour, Sankari Nagarajan, Jason S Carroll
FOXA1 is a pioneer factor that binds to enhancer regions that are enriched in H3K4 mono- and dimethylation (H3K4me1 and H3K4me2). We performed a FOXA1 rapid immunoprecipitation mass spectrometry of endogenous proteins (RIME) screen in ERα-positive MCF-7 breast cancer cells and found histone-lysine N-methyltransferase (MLL3) as the top FOXA1-interacting protein. MLL3 is typically thought to induce H3K4me3 at promoter regions, but recent findings suggest it may contribute to H3K4me1 deposition. We performed MLL3 chromatin immunoprecipitation sequencing (ChIP-seq) in breast cancer cells, and MLL3 was shown to occupy regions marked by FOXA1 occupancy and H3K4me1 and H3K4me2...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27926860/l-met-activates-arabidopsis-glr-ca-2-channels-upstream-of-ros-production-and-regulates-stomatal-movement
#20
Dongdong Kong, Heng-Cheng Hu, Eiji Okuma, Yuree Lee, Hui Sun Lee, Shintaro Munemasa, Daeshik Cho, Chuanli Ju, Leah Pedoeim, Barbara Rodriguez, Juan Wang, Wonpil Im, Yoshiyuki Murata, Zhen-Ming Pei, June M Kwak
Plant glutamate receptor homologs (GLRs) have long been proposed to function as ligand-gated Ca(2+) channels, but no in planta evidence has been provided. Here, we present genetic evidence that Arabidopsis GLR3.1 and GLR3.5 form Ca(2+) channels activated by L-methionine (L-Met) at physiological concentrations and regulate stomatal apertures and plant growth. The glr3.1/3.5 mutations resulted in a lower cytosolic Ca(2+) level, defective Ca(2+)-induced stomatal closure, and Ca(2+)-deficient growth disorder, all of which involved L-Met...
December 6, 2016: Cell Reports
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