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https://www.readbyqxmd.com/read/28646449/occurrence-of-pepper-mild-mottle-virus-pmmov-in-groundwater-from-a-karst-aquifer-system-in-the-yucatan-peninsula-mexico
#1
Gabriela Rosiles-González, Gerardo Ávila-Torres, Oscar A Moreno-Valenzuela, Gilberto Acosta-González, Rosa María Leal-Bautista, Cinthya D Grimaldo-Hernández, Judith K Brown, Cristóbal Chaidez-Quiroz, Walter Q Betancourt, Charles P Gerba, Cecilia Hernández-Zepeda
The Yucatan Peninsula of Mexico hosts a karst aquifer system that is the only source of freshwater for the area; however, it is vulnerable to human-mediated contamination. Pepper mild mottle virus (PMMoV) is one of the most abundant RNA viruses associated with human feces, making it a viable indicator for tracking fecal pollution in aquatic environments, including groundwater. In this study, groundwater samples collected from a karst aquifer from fresh and brackish water locations were analyzed for fecal indicator bacteria, somatic and male F+ specific coliphages, and PMMoV during the rainy and dry seasons...
June 23, 2017: Food and Environmental Virology
https://www.readbyqxmd.com/read/28643089/time-lapse-observation-and-transcriptome-analysis-of-a-case-with-repeated-multiple-pronuclei-after-ivf-icsi
#2
J Dai, L Z Leng, C F Lu, F Gong, S P Zhang, W Zheng, G X Lu, G Lin
PURPOSE: The purpose of this study was to investigate the cause of repeated multipronucleus (MPN) formation in zygotes in a patient after both in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). METHOD: This is a case study. A patient had unexplained primary infertility with recurring total MPN zygotes after IVF and ICSI cycles. Time-lapse monitoring of pronucleus formation was carried out. Embryos developed from MPN zygotes were analyzed by fluorescence in situ hybridization (FISH)...
June 22, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28642689/integrating-neural-circuits-controlling-female-sexual-behavior
#3
REVIEW
Paul E Micevych, Robert L Meisel
The hypothalamus is most often associated with innate behaviors such as is hunger, thirst and sex. While the expression of these behaviors important for survival of the individual or the species is nested within the hypothalamus, the desire (i.e., motivation) for them is centered within the mesolimbic reward circuitry. In this review, we will use female sexual behavior as a model to examine the interaction of these circuits. We will examine the evidence for a hypothalamic circuit that regulates consummatory aspects of reproductive behavior, i...
2017: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/28642604/turning-the-tide-in-myelodysplastic-myeloproliferative-neoplasms
#4
REVIEW
Michael W N Deininger, Jeffrey W Tyner, Eric Solary
Myelodysplastic syndromes/myeloproliferative neoplasms (MDS/MPN) are aggressive myeloid malignancies recognized as a distinct category owing to their unique combination of dysplastic and proliferative features. Although current classification schemes still emphasize morphology and exclusionary criteria, disease-defining somatic mutations and/or germline predisposition alleles are increasingly incorporated into diagnostic algorithms. The developing picture suggests that phenotypes are driven mostly by epigenetic mechanisms that reflect a complex interplay between genotype, physiological processes such as ageing and interactions between malignant haematopoietic cells and the stromal microenvironment of the bone marrow...
June 23, 2017: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/28641437/structure-and-binding-energy-of-the-h2s-dimer-at-the-ccsd-t-complete-basis-set-limit
#5
Kono H Lemke
This study presents results for the binding energy and geometry of the H2S dimer which have been computed using Møller-Plesset perturbation theory (MP2, MP4) and coupled cluster (CCSD, CCSD(T)) calculations with basis sets up to aug-cc-pV5Z. Estimates of De, EZPE, Do, and dimer geometry have been obtained at each level of theory by taking advantage of the systematic convergence behavior toward the complete basis set (CBS) limit. The CBS limit binding energy values of De are 1.91 (MP2), 1.75 (MP4), 1.41 (CCSD), and 1...
June 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28640953/overview-of-transgenic-mouse-models-of-myeloproliferative-neoplasms-mpns
#6
Andrew Dunbar, Abbas Nazir, Ross Levine
Myeloproliferative neoplasms (MPNs) are a class of hematologic diseases characterized by aberrant proliferation of one or more myeloid lineages and progressive bone marrow fibrosis. In 2005, seminal work by multiple groups identified the JAK2V617F mutation in a significant fraction of MPN patients. Since that time, murine models of JAK2V617F have greatly enhanced the understanding of the role of aberrant JAK-STAT signaling in MPN pathogenesis and have provided an in vivo pre-clinical platform that can be used to develop novel therapies...
June 22, 2017: Current Protocols in Pharmacology
https://www.readbyqxmd.com/read/28637621/gata2-deficiency-and-related-myeloid-neoplasms
#7
Marcin W Wlodarski, Matthew Collin, Marshall S Horwitz
The GATA2 gene codes for a hematopoietic transcription factor that through its two zinc fingers (ZF) can occupy GATA-DNA motifs in a countless number of genes. It is crucial for the proliferation and maintenance of hematopoietic stem cells. During the past 5 years, germline heterozygous mutations in GATA2 were reported in several hundred patients with various phenotypes ranging from mild cytopenia to severe immunodeficiency involving B cells, natural killer cells, CD4(+) cells, monocytes and dendritic cells (MonoMAC/DCML), and myeloid neoplasia...
April 2017: Seminars in Hematology
https://www.readbyqxmd.com/read/28632416/survival-of-escherichia-coli-on-lettuce-under-field-conditions-encountered-in-the-northeastern-united-states
#8
Daniel L Weller, Jasna Kovac, Sherry Roof, David J Kent, Jeffrey I Tokman, Barbara Kowalcyk, David Oryang, Renata Ivanek, Anna Aceituno, Christopher Sroka, Martin Wiedmann
Although wildlife intrusion and untreated manure have been associated with microbial contamination of produce, relatively few studies have examined the survival of Escherichia coli on produce under field conditions following contamination (e.g., via splash from wildlife feces). This experimental study was performed to estimate the die-off rate of E. coli on preharvest lettuce following contamination with a fecal slurry. During August 2015, field-grown lettuce was inoculated via pipette with a fecal slurry that was spiked with a three-strain cocktail of rifampin-resistant nonpathogenic E...
June 20, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28626218/molecular-characterization-of-ezh2-mutant-patients-with-myelodysplastic-myeloproliferative-neoplasms
#9
J Rinke, J P Müller, M F Blaess, A Chase, M Meggendorfer, V Schäfer, N Winkelmann, C Haferlach, N C P Cross, A Hochhaus, T Ernst
Mutations in the epigenetic regulator gene EZH2 are frequently observed in patients with myelodysplastic/myeloproliferative neoplasms (MDS/MPN; 10-13%) and are associated with a poor outcome. To gain more insight into EZH2 pathology we sought to genetically characterize a cohort of 41 EZH2-mutated MDS/MPN patients using targeted deep next generation sequencing (NGS), colony forming progenitor assays and transcriptome analysis. Stable shRNA-mediated downregulation of EZH2 was performed in MDS derived F-36P, MOLM-13 and OCI-M2 cells to study EZH2 specific changes...
June 19, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28626217/irf8-regulates-the-progression-of-myeloproliferative-neoplasm-mpn-like-syndrome-via-mertk-signaling-in-zebrafish
#10
F Zhao, Y Shi, Y Huang, Y Zhan, L Zhou, Y Li, Y Wan, H Li, H Huang, H Ruan, L Luo, L Li
Interferon regulatory factor (IRF)-8 is a critical transcription factor involved in the pathogenesis of myeloid neoplasia. However, the underlying mechanisms in vivo are not well known. Investigation of irf8 mutant zebrafish in this study indicated that Irf8 is evolutionarily conserved as an essential neoplastic suppressor through tight control of the proliferation and longevity of myeloid cells. Surviving irf8 mutants quickly developed a myeloproliferative neoplasm (MPN)-like disease with enhanced output of the myeloid precursors, which recurred after transplantation...
June 19, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28625126/enhanced-risk-for-specific-somatic-myeloproliferative-neoplastic-mutations-in-patients-with-stroke
#11
Chih-Cheng Chen, Chia-Chen Hsu, Cih-En Huang, Yi-Yang Chen, Jrhau Lung, Hsing-Ying Ho, Chian-Pei Li, Jiann-Der Lee
BACKGROUND: Somatic mutations of Janus kinase 2 (JAK2V617F), calreticulin (CALR), and myeloproliferative leukemia virus oncogene (MPL) are the major clonal molecules that drive the pathogenesis of myeloproliferative neoplasms (MPN). It is well recognized that MPN patients carry an excessive risk of thrombohemorrhagic complications. However, little is known about the prevalence of these clonal markers in patients with cerebral vascular disease. METHODS: To address this issue, 153 consecutive stroke patients in Taiwan were enrolled in the study...
June 18, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/28623609/administration-of-direct-oral-anticoagulants-in-patients-with-myeloproliferative-neoplasms
#12
Jean-Christophe Ianotto, Marie-Anne Couturier, Hubert Galinat, Dominique Mottier, Christian Berthou, Gaëlle Guillerm, Eric Lippert, Aurélien Delluc
Direct oral anticoagulants (DOACs) have been approved to treat and prevent thrombotic events. However, they are not yet labeled for use in patients with active cancers. Myeloproliferative neoplasms (MPNs) are clonal chronic disorders with a high incidence of thrombotic events, for which low-dose aspirin (LDA) is the standard drug treatment. We analyzed efficacy and safety of DOACs prescription in patients treated for MPNs. An MPN database, the OBENE registry, was established at our institution. We collected biological and clinical data from diagnosis to last follow-up for every patient included in this study...
June 16, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28620103/pre-pmf-emerging-as-important-subgroup-of-mpn
#13
Heinz Gisslinger
No abstract text is available yet for this article.
June 15, 2017: Blood
https://www.readbyqxmd.com/read/28620086/a-genetic-screen-reveals-an-unexpected-role-for-yorkie-signaling-in-jak-stat-dependent-hematopoietic-malignancies-in-drosophila-melanogaster
#14
Abigail M Anderson, Alessandro A Bailetti, Elizabeth Rodkin, Atish De, Erika A Bach
A gain-of-function mutation in the tyrosine kinase JAK2 (JAK2(V617F) ) causes human myeloproliferative neoplasms (MPNs). These patients present with high numbers of myeloid lineage cells and have numerous complications. Since current MPN therapies are not curative, there is a need to find new regulators and targets of JAK/STAT signaling that may represent additional clinical interventions. Drosophila melanogaster offers a low complexity model to study MPNs as JAK/STAT signaling is simplified with only one JAK (Hopscotch (Hop)) and one STAT (Stat92E)...
June 15, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28615140/imaging-features-of-myeloproliferative-neoplasms
#15
REVIEW
I G Murphy, E L Mitchell, L Raso-Barnett, A L Godfrey, E M Godfrey
Myeloproliferative neoplasms (MPNs) are a heterogeneous group of haematological disorders including polycythaemia vera (PV), essential thrombocythaemia (ET), primary myelofibrosis (PMF), and chronic myeloid leukaemia (CML). These disorders show large overlap in genetic and clinical presentations, and can have many different imaging manifestations. Unusual thromboses, embolic events throughout the systemic or pulmonary vasculature, or osseous findings can often be clues to the underlying disease. There is limited literature about the imaging features of these disorders, and this may result in under-diagnosis...
June 11, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28613818/efficient-removal-of-anionic-radioactive-pollutant-from-water-using-ordered-urea-functionalized-mesoporous-polymeric-nanoparticle
#16
Jian Shen, Wei Chai, Kaixuan Wang, Fang Zhang
A urea-functionalized ordered mesoporous polymeric nanoparticle for removing the perrhenate anion ReO4- as the surrogate of the particularly intractable anion radioactive pollutant TcO4- was demonstrated in the present study. This nanomaterial (denoted as urea-MPN) was produced for the first time by a surfactant-directed urea-phenol-formaldehyde resol oligomers self-assembly protocol under hydrothermal condition. The obtained urea-MPN possessed the uniform nanosized spherical morphology with 3D interconnected ordered cubic mesoporous structure...
June 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28613079/rhizoremediation-of-residual-sulfonylurea-herbicides-in-agricultural-soils-using-lens-culinaris-and-a-commercial-supplement
#17
B Rainbird, R H Bentham, K L Soole
Sulfonylureas are a popular herbicide used today for controlling weeds. While beneficial for this purpose they present a persistent problem in agricultural treated areas proving detrimental for successive crops. This study assessed the phytoremediative properties of lentils (Lens culinaris) grown in uncontaminated and Chlorsulfuron-contaminated soil, with and without the addition of a growth supplement, PulseAider™. The results show that in the presence of lentils the degradation of Chlorsulfuron is enhanced and this degradation rate is significantly increased when the PulseAider™ supplement was included during seed sowing...
June 14, 2017: International Journal of Phytoremediation
https://www.readbyqxmd.com/read/28612312/chemical-and-microbial-characteristics-of-municipal-drinking-water-supply-systems-in-the-canadian-arctic
#18
Kiley Daley, Lisbeth Truelstrup Hansen, Rob C Jamieson, Jenny L Hayward, Greg S Piorkowski, Wendy Krkosek, Graham A Gagnon, Heather Castleden, Kristen MacNeil, Joanna Poltarowicz, Emmalina Corriveau, Amy Jackson, Justine Lywood, Yannan Huang
Drinking water in the vast Arctic Canadian territory of Nunavut is sourced from surface water lakes or rivers and transferred to man-made or natural reservoirs. The raw water is at a minimum treated by chlorination and distributed to customers either by trucks delivering to a water storage tank inside buildings or through a piped distribution system. The objective of this study was to characterize the chemical and microbial drinking water quality from source to tap in three hamlets (Coral Harbour, Pond Inlet and Pangnirtung-each has a population of <2000) on trucked service, and in Iqaluit (population ~6700), which uses a combination of trucked and piped water conveyance...
June 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28609766/should-we-screen-for-janus-kinase-2-v617f-mutation-in-cerebral-venous-thrombosis
#19
Matthias Lamy, Paola Palazzo, Pierre Agius, Jean Claude Chomel, Jonathan Ciron, Aline Berthomet, Paul Cantagrel, Julia Prigent, Pierre Ingrand, Mathieu Puyade, Jean-Philippe Neau
BACKGROUND: The presence of Janus Kinase 2 (JAK2) V617F mutation represents a major diagnostic criterion for detecting myeloproliferative neoplasms (MPN) and even in the absence of overt MPN, JAK2 V617F mutation is associated with splanchnic vein thrombosis. However, the actual prevalence and diagnostic value of the JAK2 V617F mutation in patients with cerebral venous thrombosis (CVT) are not known. The aims of this study were to assess the prevalence of JAK2 V617F mutation in a large group of consecutive CVT patients, to detect clinical, biological, and radiological features associated with the mutation, and to determine the long-term venous thrombosis recurrence rate in CVT patients with JAK2 mutation but without overt MPN in order to recommend the best preventive treatment...
June 14, 2017: Cerebrovascular Diseases
https://www.readbyqxmd.com/read/28595805/composting-municipal-biosolids-in-polyethylene-sleeves-with-forced-aeration-process-control-air-emissions-sanitary-and-agronomic-aspects
#20
R Avidov, I Saadi, A Krassnovsky, A Hanan, Sh Medina, M Raviv, Y Chen, Y Laor
Composting in polyethylene sleeves with forced aeration may minimize odor emissions, vectors attraction and leachates associated with open windrows. A disadvantage of this technology is the lack of mixing during composting, potentially leading to non-uniform products. In two pilot experiments using biosolids and green waste (1:1; v:v), thermophilic conditions (>45°C) were maintained for two months, with successful control of oxygen levels and sufficient moisture. Emitted odors declined from 1.5-3.8×10(5) to 5...
June 5, 2017: Waste Management
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