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https://www.readbyqxmd.com/read/28102850/japanese-encephalitis-virus-induces-human-neural-stem-progenitor-cell-death-by-elevating-grp78-phb-and-hnrnpc-through-er-stress
#1
Sriparna Mukherjee, Noopur Singh, Nabonita Sengupta, Mahar Fatima, Pankaj Seth, Anita Mahadevan, Susarla Krishna Shankar, Arindam Bhattacharyya, Anirban Basu
Japanese encephalitis virus (JEV), which is a causative agent of sporadic encephalitis, harbours itself inside the neural stem/progenitor cells. It is a well-known fact that JEV infects neural stem/progenitor cells and decreases their proliferation capacity. With mass spectrometry-based quantitative proteomic study, it is possible to reveal the impact of virus on the stem cells at protein level. Our aim was to perceive the stem cell proteomic response upon viral challenge. We performed a two-dimensional gel electrophoresis-based proteomic study of the human neural stem cells (hNS1 cell line) post JEV infection and found that 13 proteins were differentially expressed...
January 19, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28102818/is-cell-size-a-spandrel
#2
Ariel Amir
All organisms control the size of their cells. We focus here on the question of size regulation in bacteria, and suggest that the quantitative laws governing cell size and its dependence on growth rate may arise as byproducts of a regulatory mechanism which evolved to support multiple DNA replication forks. In particular, we show that the increase of bacterial cell size during Lenski's long-term evolution experiments is a natural outcome of this proposal. This suggests that, in the context of evolution, cell size may be a 'spandrel'...
January 19, 2017: ELife
https://www.readbyqxmd.com/read/28102531/a-systems-dynamics-approach-to-the-efficacy-of-oxime-therapy-for-mild-exposure-to-sarin-gas
#3
Daniel J Droste, Michael L Shelley, Jeffery M Gearhart, David M Kempisty
The use of nerve agents such as sarin is as much a threat today as any other time in our history. The events in Syria in 2013 are proof of this. "The Obama administration asserted Sunday for the first time that the Syrian government used the nerve gas sarin to kill more than 1,400 people (August 21, 2013) in the world's gravest chemical weapons attack in 25 years." With these recent events clear in our mind, we must focus on the horrific nature of these chemical agents to devise a strategy that will enable first responders to counteract these insidious chemicals...
April 2016: American Journal of Disaster Medicine
https://www.readbyqxmd.com/read/28102416/phase-separation-in-driven-granular-gases-exploring-the-elusive-character-of-nonequilibrium-steady-states
#4
S Herminghaus, M G Mazza
The emergence of patterns and phase separation in many-body systems far from thermal equilibrium is discussed using the example of driven granular gases. It is shown that phase separation follows a similar mechanism as in the systems of active Brownian particles. Depending on the quantities chosen for observation, it may or may not be easy to find functionals analogous to the free energy in equilibrium statistical physics. We argue that although such functionals can always be derived from the dynamics, it is of only limited value for predicting relevant aspects of the nonequilibrium steady state of the system...
January 19, 2017: Soft Matter
https://www.readbyqxmd.com/read/28102360/modification-of-distinct-ion-channels-differentially-modulates-ca-2-dynamics-in-primary-cultured-rat-ventricular-cardiomyocytes
#5
Xichun Li, Liping Shen, Fang Zhao, Xiaohan Zou, Yuwei He, Fan Zhang, Chunlei Zhang, Boyang Yu, Zhengyu Cao
Primary cultured cardiomyocytes show spontaneous Ca(2+) oscillations (SCOs) which not only govern contractile events, but undergo derangements that promote arrhythmogenesis through Ca(2+) -dependent mechanism. We systematically examined influence on SCOs of an array of ion channel modifiers by recording intracellular Ca(2+) dynamics in rat ventricular cardiomyocytes using Ca(2+) specific fluorescence dye, Fluo-8/AM. Voltage-gated sodium channels (VGSCs) activation elongates SCO duration and reduces SCO frequency while inhibition of VGSCs decreases SCO frequency without affecting amplitude and duration...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102318/transcriptional-profiling-of-olfactory-system-development-identifies-distal-antenna-as-a-regulator-of-subset-of-neuronal-fates
#6
Scott Barish, Qingyun Li, Jia W Pan, Charlie Soeder, Corbin Jones, Pelin C Volkan
Drosophila uses 50 different olfactory receptor neuron (ORN) classes that are clustered within distinct sensilla subtypes to decipher their chemical environment. Each sensilla subtype houses 1-4 ORN identities that arise through asymmetric divisions of a single sensory organ precursor (SOP). Despite a number of mutational studies investigating the regulation of ORN development, a majority of the transcriptional programs that lead to the different ORN classes in the developing olfactory system are unknown. Here we use transcriptional profiling across the time series of antennal development to identify novel transcriptional programs governing the differentiation of ORNs...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102259/elements-of-cancer-immunity-and-the-cancer-immune-set-point
#7
Daniel S Chen, Ira Mellman
Immunotherapy is proving to be an effective therapeutic approach in a variety of cancers. But despite the clinical success of antibodies against the immune regulators CTLA4 and PD-L1/PD-1, only a subset of people exhibit durable responses, suggesting that a broader view of cancer immunity is required. Immunity is influenced by a complex set of tumour, host and environmental factors that govern the strength and timing of the anticancer response. Clinical studies are beginning to define these factors as immune profiles that can predict responses to immunotherapy...
January 18, 2017: Nature
https://www.readbyqxmd.com/read/28102238/fibronectin-guided-migration-of-carcinoma-collectives
#8
Sandeep Gopal, Laurence Veracini, Dominique Grall, Catherine Butori, Sébastien Schaub, Stéphane Audebert, Luc Camoin, Emilie Baudelet, Agata Radwanska, Stéphanie Beghelli-de la Forest Divonne, Shelia M Violette, Paul H Weinreb, Samah Rekima, Marius Ilie, Anne Sudaka, Paul Hofman, Ellen Van Obberghen-Schilling
Functional interplay between tumour cells and their neoplastic extracellular matrix plays a decisive role in malignant progression of carcinomas. Here we provide a comprehensive data set of the human HNSCC-associated fibroblast matrisome. Although much attention has been paid to the deposit of collagen, we identify oncofetal fibronectin (FN) as a major and obligate component of the matrix assembled by stromal fibroblasts from head and neck squamous cell carcinomas (HNSCC). FN overexpression in tumours from 435 patients corresponds to an independent unfavourable prognostic indicator...
January 19, 2017: Nature Communications
https://www.readbyqxmd.com/read/28102120/intestinal-mononuclear-phagocytes-in-health-and-disease
#9
Theodore J Sanders, Ulf Yrlid, Kevin J Maloy
The intestine is the tissue of the body with the highest constitutive exposure to foreign antigen and is also a common entry portal for many local and systemic pathogens. Therefore, the local immune system has the unenviable task of balancing efficient responses to dangerous pathogens with tolerance toward beneficial microbiota and food antigens. As in most tissues, the decision between tolerance and immunity is critically governed by the activity of local myeloid cells. However, the unique challenges posed by the intestinal environment have necessitated the development of several specialized mononuclear phagocyte populations with distinct phenotypic and functional characteristics that have vital roles in maintaining barrier function and immune homeostasis in the intestine...
January 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28102016/mechanical-and-barrier-properties-of-maize-starch-gelatin-composite-film-effects-of-amylose-content
#10
Kun Wang, Wenhang Wang, Ran Ye, Jingdong Xiao, Yaowei Liu, Junsheng Ding, Shaojing Zhang, Anjun Liu
BACKGROUND: In order to obtain new reinforcing bio-fillers to improve the physicochemical properties of gelatin based film, three types of maize starches: waxy maize starch (Ap), normal starch (Ns), and high amylose starch (Al), were incorporated into the gelatin films, and their properties were investigated, focusing on the impact of amylose content. RESULTS: The thickness, opacity and roughness of gelatin films increased depending upon amylose content along with the concentration of starch...
January 19, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28101967/host-related-factors-explaining-interindividual-variability-of-carotenoid-bioavailability-and-tissue-concentrations-in-humans
#11
Torsten Bohn, Charles Desmarchelier, Lars O Dragsted, Charlotte S Nielsen, Wilhelm Stahl, Ralph Rühl, Jaap Keijer, Patrick Borel
Carotenoid dietary intake and their endogenous levels have been associated with a decreased risk of several chronic diseases. There are indications that carotenoid bioavailability depends, in addition to the food matrix, on host factors. These include diseases (e.g. colitis), life-style habits (e.g. smoking), gender and age, as well as genetic variations including single nucleotide polymorphisms that govern carotenoid metabolism. These are expected to explain interindividual differences that contribute to carotenoid uptake, distribution, metabolism and excretion, and therefore possibly also their association with disease risk...
January 19, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28101878/bootstrapping-disaster-the-challenge-of-growing-and-maintaining-a-cross-sector-collaborative-network
#12
Aaron Wachhaus
This article examines the interaction of nonprofit and private actors with the traditional bureaucratic structures of government in central Pennsylvania&s recovery from hurricane Irene and tropical storm Lee. That effort relied heavily on private and nonprofit organizations as drivers of the response and recovery. The author maps the organizations involved in the recovery effort and explores the impact of the recovery effort on those organizations. A social network analysis was conducted and complemented with follow-up interviews with key actors...
November 2016: Journal of Emergency Management: JEM
https://www.readbyqxmd.com/read/28101730/concepts-for-studying-urban-environmental-justice
#13
REVIEW
Jason Corburn
PURPOSE OF REVIEW: This paper offers research frameworks for understanding and acting to address urban environmental justice. Urban neighborhoods tend to concentrate and colocate vulnerable people and toxic environments. Cities are also where the poor and people of color tend to be disproportionately exposed to environmental hazards, such as air pollution, lead in paint and water, and polluting industries. RECENT FINDINGS: Researchers and government agencies are increasingly recognizing the need to document cumulative exposures that the urban poor and people of color experience in addition to environmental hazards...
January 18, 2017: Current Environmental Health Reports
https://www.readbyqxmd.com/read/28101712/herbicides-and-trace-metals-in-urban-waters-in-melbourne-australia-2011-12-concentrations-and-potential-impact
#14
Mayumi Allinson, Pei Zhang, AnhDuyen Bui, Jackie H Myers, Vincent Pettigrove, Gavin Rose, Scott A Salzman, Robert Walters, Graeme Allinson
Urban stormwater samples were collected from five aquatic systems in Melbourne, Australia, on six occasions between October 2011 and March 2012 and tested for 30 herbicides and 14 trace metals. Nineteen different herbicides were observed in one or more water samples from the five sites; chemicals observed at more than 40% of sites were simazine (100%), MCPA (83%), diuron (63%) and atrazine (53%). Using the toxicity unit (TU) concept to assess potential risk to aquatic ecosystems, none of the detected herbicides were considered to pose an individual, group or collective short-term risk to fish or zooplankton in the waters studied...
January 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28101587/factors-limiting-formation-of-community-forestry-enterprises-in-the-southern-mixteca-region-of-oaxaca-mexico
#15
José Antonio Hernández-Aguilar, Héctor Sergio Cortina-Villar, Luis Enrique García-Barrios, Miguel Ángel Castillo-Santiago
Many studies have considered community-based forestry enterprises to be the best option for development of rural Mexican communities with forests. While some of Mexico's rural communities with forests receive significant economic and social benefits from having a community forestry enterprise, the majority have not formed such enterprises. The purpose of this article is to identify and describe factors limiting the formation of community forestry enterprise in rural communities with temperate forests in the Southern Mixteca region of Oaxaca, Mexico...
January 18, 2017: Environmental Management
https://www.readbyqxmd.com/read/28101563/world-health-organisation-global-disability-action-plan-2014-2021-challenges-and-perspectives-for-physical-medicine-and-rehabilitation-in-pakistan
#16
Fary Khan, Bhasker Amatya, Tahir M Sayed, Aamir W Butt, Khalid Jamil, Waseem Iqbal, Alaeldin Elmalik, Farooq A Rathore, Geoff Abbott
OBJECTIVE: To provide an update on disability and outline potential barriers and facilitators for implementation of the World Health Organization Global Disability Action Plan (GDAP) in Pakistan. METHODS: A 6-day workshop at the Armed Forces Institute of Rehabilitation Medicine, Islamabad facilitated by rehabilitation staff from Royal Melbourne Hospital, Australia. Local healthcare professionals (n = 33) from medical rehabilitation facilities identified challenges in service provision, education and attitudes/approaches to people with disabilities, using consensus agreement for objectives listed in the GDAP...
January 19, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28101336/regulatory-elements-and-transcriptional-control-of-chicken-vasa-homologue-cvh-promoter-in-chicken-primordial-germ-cells
#17
So Dam Jin, Bo Ram Lee, Young Sun Hwang, Hong Jo Lee, Jong Seop Rim, Jae Yong Han
BACKGROUND: Primordial germ cells (PGCs), the precursors of functional gametes, have distinct characteristics and exhibit several unique molecular mechanisms to maintain pluripotency and germness in comparison to somatic cells. They express germ cell-specific RNA binding proteins (RBPs) by modulating tissue-specific cis- and trans-regulatory elements. Studies on gene structures of chicken vasa homologue (CVH), a chicken RNA binding protein, involved in temporal and spatial regulation are thus important not only for understanding the molecular mechanisms that regulate germ cell fate, but also for practical applications of primordial germ cells...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28101113/evaluating-the-effectiveness-of-pubertal-preparedness-program-in-terms-of-knowledge-and-attitude-regarding-pubertal-changes-among-pre-adolescent-girls
#18
Manisha Rani, Poonam Sheoran, Yogesh Kumar, Navjyot Singh
Objective: To compare the knowledge and attitude regarding pubertal changes among pre - adolescent girls before and after the pubertal preparedness program (PPP) in experimental and comparison group. Materials and methods: A Quasi experimental (non- equivalent comparison group pretest posttest) design was adopted with 104pre-adolescentgirls (52 in each experimental and comparison group) of age 12-14years, selected by purposive sampling from two different Government schools of Ambala District. Knowledge and attitude was assessed using structured knowledge questionnaire (KR-20 = 0...
September 2016: Journal of Family & Reproductive Health
https://www.readbyqxmd.com/read/28100610/the-measles-virus-receptor-slamf1-can-mediate-particle-endocytosis
#19
Daniel Gonçalves-Carneiro, Jane A McKeating, Dalan Bailey
: The signalling lymphocyte activation molecule F1 (SLAMF1) is both a microbial sensor and entry receptor for Measles virus (MeV). Herein, we describe a new role for SLAMF1 to mediate MeV endocytosis that is in contrast with the alternative, and generally accepted, model that MeV genome enters cells only after fusion at the cell surface. We demonstrated that MeV engagement of SLAMF1 induces dramatic but transient morphological changes, most prominently in the formation of membrane blebs, which were shown to co-localise with incoming viral particles, and rearrangement of the actin cytoskeleton in infected cells...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28100583/every-participant-is-a-pi-citizen-science-and-participatory-governance-in-population-studies
#20
EDITORIAL
Alena Buyx, Lorenzo Del Savio, Barbara Prainsack, Henry Völzke
No abstract text is available yet for this article.
January 17, 2017: International Journal of Epidemiology
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