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https://www.readbyqxmd.com/read/29155661/zoonotic-disease-programs-for-enhancing-global-health-security
#1
Ermias D Belay, James C Kile, Aron J Hall, Casey Barton-Behravesh, Michele B Parsons, Stephanie Salyer, Henry Walke
Most infectious diseases that recently emerged in humans originated in animals. Besides close contact between animals and humans, other factors probably contribute to the cross-species transmission of infectious diseases. It is critical to establish effective mechanisms for coordination and collaboration between the animal, human, and environmental health sectors before new threats emerge by bringing the different sectors together to tackle endemic zoonotic diseases of greatest concern. Such multisectoral partnerships should begin by identifying priority zoonotic diseases for national engagement with equal input from the different sectors...
December 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29155018/emerging-infections-are-an-increasingly-important-topic
#2
REVIEW
Eskild Petersen, Nicola Petrosillo, Marion Koopmans
OBJECTIVES: This paper review trends in emerging infections and the need for increased clinical and laboratory surveillance. METHODS: Factors that contributed to the emergence of recent outbreaks have been reviewed. Known, major outbreaks over the past two decades were reviewed. RESULTS: We identified at least four major drivers of emergent infections: i. increasing density of the human population; ii. stress from farmland expansion on the environment; iii...
November 15, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29154962/a-novel-type-2-diabetes-mouse-model-of-combined-diabetic-kidney-disease-and-atherosclerosis
#3
Karin E Bornfeldt, Farah Kramer, Anna Batorsky, Jinkuk Choi, Kelly L Hudkins, Peter Tontonoz, Charles E Alpers, Jenny E Kanter
Diabetic kidney disease and atherosclerotic disease are major causes of morbidity and mortality associated with type 2 diabetes (T2D), and diabetic kidney disease is a major cardiovascular risk factor. The BTBR mouse strain with leptin-deficiency (Lep(ob)) has emerged as one of the best models of human diabetic kidney disease. However, no T2D mouse model of combined diabetic kidney disease and atherosclerosis exists. Our goal was to generate such a model. To this end, the LDL receptor was targeted for degradation via IDOL (inducible degrader of the LDL receptor) overexpression, using a liver-targeted adeno-associated virus (AAV-DJ/8) in BTBR wild-type (WT) and BTBR Lep(ob) (OB) mice...
November 15, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29152579/streptococcus-pneumoniae-tigr4-phase-locked-opacity-variants-differ-in-virulence-phenotypes
#4
Melissa B Oliver, Ankita Basu Roy, Ranjit Kumar, Elliot J Lefkowitz, W Edward Swords
Streptococcus pneumoniae (pneumococcus) is a leading human pathogen that can cause serious localized and invasive diseases. Pneumococci can undergo a spontaneous and reversible phase variation that is reflected in colony opacity and which allows the population to adapt to different host environments. Generally, transparent variants are adapted for nasopharyngeal colonization, whereas opaque variants are associated with invasive disease. In recent work, colony phase variation was shown to occur by means of recombination events to generate multiple alleles of the hsdS targeting domain of a DNA methylase complex, which mediates epigenetic changes in gene expression...
November 2017: MSphere
https://www.readbyqxmd.com/read/29148053/effective-inactivation-of-a-wide-range-of-viruses-by-pasteurization
#5
Albrecht Gröner, Connie Broumis, Randel Fang, Thomas Nowak, Birgit Popp, Wolfram Schäfer, Nathan J Roth
BACKGROUND: Careful selection and testing of plasma reduces the risk of blood-borne viruses in the starting material for plasma-derived products. Furthermore, effective measures such as pasteurization at 60°C for 10 hours have been implemented in the manufacturing process of therapeutic plasma proteins such as human albumin, coagulation factors, immunoglobulins, and enzyme inhibitors to inactivate blood-borne viruses of concern. A comprehensive compilation of the virus reduction capacity of pasteurization is presented including the effect of stabilizers used to protect the therapeutic protein from modifications during heat treatment...
November 16, 2017: Transfusion
https://www.readbyqxmd.com/read/29147953/impact-of-perfluorochemicals-on-human-health-and-reproduction-a-male-s-perspective
#6
REVIEW
C Foresta, S Tescari, A Di Nisio
Perfluoroalkyl compounds (PFCs) are a class of organic molecules used in industry and consumer products. PFCs are non-biodegradable and bioaccumulate in the environment and for these reasons they have been a major subject of research regarding their toxicity, environmental fate, and sources of human exposure, since they have been shown to induce severe health consequences, such as neonatal mortality, neurotoxicity and immunotoxicity. The aim of this review is to explore the existing knowledge of the interplay between PFCs exposure and human health, with a focus on male reproductive health, given the emerging gender differences in PFCs clearance and their interaction with sex hormones receptors...
November 17, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29145888/tgf-%C3%AE-2-initiates-autophagy-via-smad-and-non-smad-pathway-to-promote-glioma-cells-invasion
#7
Chao Zhang, Xin Zhang, Ran Xu, Bin Huang, An-Jing Chen, Chao Li, Jian Wang, Xin-Gang Li
BACKGROUND: Glioblastoma multiforme (GBM) is characterized by lethal aggressiveness and patients with GBM are in urgent need for new therapeutic avenues to improve quality of life. Current studies on tumor invasion focused on roles of cytokines in tumor microenvironment and numerous evidence suggests that TGF-β2 is abundant in glioma microenvironment and vital for glioma invasion. Autopagy is also emerging as a critical factor in aggressive behaviors of cancer cells; however, the relationship between TGF-β2 and autophagy in glioma has been poorly understood...
November 16, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29145728/understanding-how-emergency-medicine-physicians-survive-and-thrive-in-rural-practice-a-theoretical-model
#8
Ashra Kolhatkar, Andrea Keesey, Bob Bluman, Brenna Lynn, Tandi Wilkinson
INTRODUCTION: The challenges facing emergency medicine (EM) services in Canada reflect the limitations of the entire healthcare system. The emergency department (ED) is uniquely situated in the healthcare system such that shortcomings in hospital- and community-based services are often first revealed there. This is especially true in rural settings, where there are additional site-specific barriers to the provision of EM care. Existing studies look at the factors that influence rural EM physicians in isolation...
November 2017: Rural and Remote Health
https://www.readbyqxmd.com/read/29145608/medreaders-a-database-for-transcription-factors-that-bind-to-methylated-dna
#9
Guohua Wang, Ximei Luo, Jianan Wang, Jun Wan, Shuli Xia, Heng Zhu, Jiang Qian, Yadong Wang
Understanding the molecular principles governing interactions between transcription factors (TFs) and DNA targets is one of the main subjects for transcriptional regulation. Recently, emerging evidence demonstrated that some TFs could bind to DNA motifs containing highly methylated CpGs both in vitro and in vivo. Identification of such TFs and elucidation of their physiological roles now become an important stepping-stone toward understanding the mechanisms underlying the methylation-mediated biological processes, which have crucial implications for human disease and disease development...
November 14, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29144769/detection-of-emerging-zoonotic-pathogens-an-integrated-one-health-approach
#10
Brian H Bird, Jonna A K Mazet
The emergence of novel zoonotic pathogens is one of the greatest challenges to global health security. The advent of increasingly sophisticated diagnostics tools has revolutionized our capacity to detect and respond to these health threats more rapidly than ever before. Yet, no matter how sophisticated these tools become, the initial identification of emerging infectious diseases begins at the local community level. It is here that the initial human or animal case resides, and it is here that early pathogen detection would have maximum benefit...
November 16, 2017: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/29142228/genome-wide-mapping-of-genetic-determinants-influencing-dna-methylation-and-gene-expression-in-human-hippocampus
#11
Herbert Schulz, Ann-Kathrin Ruppert, Stefan Herms, Christiane Wolf, Nazanin Mirza-Schreiber, Oliver Stegle, Darina Czamara, Andreas J Forstner, Sugirthan Sivalingam, Susanne Schoch, Susanne Moebus, Benno Pütz, Axel Hillmer, Nadine Fricker, Hartmut Vatter, Bertram Müller-Myhsok, Markus M Nöthen, Albert J Becker, Per Hoffmann, Thomas Sander, Sven Cichon
Emerging evidence emphasizes the strong impact of regulatory genomic elements in neurodevelopmental processes and the complex pathways of brain disorders. The present genome-wide quantitative trait loci analyses explore the cis-regulatory effects of single-nucleotide polymorphisms (SNPs) on DNA methylation (meQTL) and gene expression (eQTL) in 110 human hippocampal biopsies. We identify cis-meQTLs at 14,118 CpG methylation sites and cis-eQTLs for 302 3'-mRNA transcripts of 288 genes. Hippocampal cis-meQTL-CpGs are enriched in flanking regions of active promoters, CpG island shores, binding sites of the transcription factor CTCF and brain eQTLs...
November 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/29141950/maternal-circadian-rhythms-and-the-programming-of-adult-health-and-disease
#12
Tamara Jayne Varcoe, Kathryn L Gatford, David J Kennaway
The in utero environment is inherently rhythmic, with the fetus subjected to circadian changes in temperature, substrates and various maternal hormones. Meanwhile, the fetus is developing an endogenous circadian timing system, preparing for life in an external environment where light, food availability and other environmental factors change predictably and repeatedly every 24 hours. In humans, there are many situations that can disrupt circadian rhythms, including shift work, international travel, insomnias and circadian rhythm disorders (e...
November 15, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29140435/hmdb-4-0-the-human-metabolome-database-for-2018
#13
David S Wishart, Yannick Djoumbou Feunang, Ana Marcu, An Chi Guo, Kevin Liang, Rosa Vázquez-Fresno, Tanvir Sajed, Daniel Johnson, Carin Li, Naama Karu, Zinat Sayeeda, Elvis Lo, Nazanin Assempour, Mark Berjanskii, Sandeep Singhal, David Arndt, Yonjie Liang, Hasan Badran, Jason Grant, Arnau Serra-Cayuela, Yifeng Liu, Rupa Mandal, Vanessa Neveu, Allison Pon, Craig Knox, Michael Wilson, Claudine Manach, Augustin Scalbert
The Human Metabolome Database or HMDB (www.hmdb.ca) is a web-enabled metabolomic database containing comprehensive information about human metabolites along with their biological roles, physiological concentrations, disease associations, chemical reactions, metabolic pathways, and reference spectra. First described in 2007, the HMDB is now considered the standard metabolomic resource for human metabolic studies. Over the past decade the HMDB has continued to grow and evolve in response to emerging needs for metabolomics researchers and continuing changes in web standards...
November 11, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29140285/chitosan-cyclodextrin-tpp-nanoparticles-loaded-with-quercetin-as-novel-bacterial-quorum-sensing-inhibitors
#14
Hao Thanh Nguyen, Francisco M Goycoolea
The widespread emergence of antibiotic-resistant bacteria has highlighted the urgent need of alternative therapeutic approaches for human and animal health. Targeting virulence factors that are controlled by bacterial quorum sensing (QS), seems a promising approach. The aims of this study were to generate novel nanoparticles (NPs) composed of chitosan (CS), sulfo-butyl-ether-β-cyclodextrin (Captisol(®)) and/or pentasodium tripolyphosphate using ionotropic gelation technique, and to evaluate their potential capacity to arrest QS in bacteria...
November 15, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29140260/vaccinia-virus-natural-infections-in-brazil-the-good-the-bad-and-the-ugly
#15
REVIEW
Jaqueline Silva de Oliveira, Poliana de Oliveira Figueiredo, Galileu Barbosa Costa, Felipe Lopes de Assis, Betânia Paiva Drumond, Flávio Guimarães da Fonseca, Maurício Lacerda Nogueira, Erna Geessien Kroon, Giliane de Souza Trindade
The orthopoxviruses (OPV) comprise several emerging viruses with great importance to human and veterinary medicine, including vaccinia virus (VACV), which causes outbreaks of bovine vaccinia (BV) in South America. Historically, VACV is the most comprehensively studied virus, however, its origin and natural hosts remain unknown. VACV was the primary component of the smallpox vaccine, largely used during the smallpox eradication campaign. After smallpox was declared eradicated, the vaccination that conferred immunity to OPV was discontinued, favoring a new contingent of susceptible individuals to OPV...
November 15, 2017: Viruses
https://www.readbyqxmd.com/read/29138681/cell-signaling-with-extracellular-thioredoxin-and-thioredoxin-like-proteins-insight-into-their-mechanisms-of-action
#16
REVIEW
Thierry Léveillard, Najate Aït-Ali
Thioredoxins are small thiol-oxidoreductase enzymes that control cellular redox homeostasis. Paradoxically, human thioredoxin (TXN1) was first identified as the adult T cell leukemia-derived factor (ADF), a secreted protein. ADF has been implicated in a wide variety of cell-to-cell communication systems acting as a cytokine or a chemokine. TRX80 is a truncated TXN1 protein with cytokine activity. The unconventional secretion mechanism of these extracellular thioredoxins is unknown. The thioredoxin system is relying on glucose metabolism through the pentose phosphate pathway that provides reducing power in the form of NADPH, the cofactor of thioredoxin reductase (TXNRD)...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29138297/mafb-enhances-oncogenic-notch-signaling-in-t-cell-acute-lymphoblastic-leukemia
#17
Kostandin V Pajcini, Lanwei Xu, Lijian Shao, Jelena Petrovic, Karol Palasiewicz, Yumi Ohtani, Will Bailis, Curtis Lee, Gerald B Wertheim, Rajeswaran Mani, Natarajan Musuthamy, Yunlei Li, Jules P P Meijerink, Stephen C Blacklow, Robert B Faryabi, Sara Cherry, Warren S Pear
Activating mutations in the gene encoding the cell-cell contact signaling protein Notch1 are common in human T cell acute lymphoblastic leukemias (T-ALLs). However, expressing Notch1 mutant alleles in mice fails to efficiently induce the development of leukemia. We performed a gain-of-function screen to identify proteins that enhanced signaling by leukemia-associated Notch1 mutants. The transcription factors MAFB and ETS2 emerged as candidates that individually enhanced Notch1 signaling, and when coexpressed, they synergistically increased signaling to an extent similar to that induced by core components of the Notch transcriptional complex...
November 14, 2017: Science Signaling
https://www.readbyqxmd.com/read/29137309/anti-proliferative-and-pro-apoptotic-effects-induced-by-simultaneous-inactivation-of-her1-and-her2-through-endogenous-polyclonal-antibodies
#18
Narjara González Suárez, Gretchen Bergado Báez, Mabel Cruz Rodríguez, Amelia Gutiérrez Pérez, Lisset Chao García, Diana Rosa Hernández Fernández, Judith Raymond Pous, Belinda Sánchez Ramírez
The human epidermal growth factor receptor (HER1) and its partner HER2 are extensively described oncogenes and validated targets for cancer therapy. However, the effectiveness of monospecific therapies targeting these receptors is hampered by resistance emergence, which is frequently associated with the upregulation of other members of HER family. Combined therapies using monoclonal antibodies or tyrosine kinase inhibitors have been suggested as a promising strategy to circumvent this resistance mechanism. We propose an alternative approach based on simultaneous inactivation of HER1 and HER2 by multi-epitope blockade with specific polyclonal antibodies induced by vaccination...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136925/piezoelectric-biosensor-for-the-determination-of-tumor-necrosis-factor-alpha
#19
Miroslav Pohanka
Tumor Necrosis Factor Alpha (TNFα) is an important marker of inflammatory processes in human body. In the current healthcare, determination of TNFα blood or plasma level is done by Enzyme Linked Immuno-Sorbent Assay (ELISA) as a primary choice method. Piezoelectric immunosensors are analytical platform recording affinity interactions on their surface. It is inferred that the immunosensors would be a functional alternative to the ELISA. In this study, antibody against TNFα was immobilized on Quartz Crystal Microbalance (QCM) sensor and the same was made on magnetic particles...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29134547/detection-of-virulence-related-genes-in-lactococcus-garvieae-and-their-expression-in-response-to-different-conditions
#20
Giovanni Eraclio, Giovanni Ricci, Mattia Quattrini, Paolo Moroni, Maria Grazia Fortina
Lactococcus garvieae has emerged as an important zoonotic pathogen. However, information regarding mechanisms and factors related to its pathogenicity is lacking. In the present study, we investigated the distribution and functionality of genes related to virulence factors in L. garvieae strains isolated from different niches (diseased fish, humans, meat and dairy products, vegetables), using both post-genomic and genotypic analysis. Putative genes encoding hemolysin, fibronectin-binding protein, and penicillin acylase were detected in all analyzed genomes/strains...
November 13, 2017: Folia Microbiologica
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