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https://www.readbyqxmd.com/read/28527805/effects-of-replacement-of-late-harvested-grass-silage-and-barley-with-early-harvested-silage-on-milk-production-and-methane-emissions
#1
E H Cabezas-Garcia, S J Krizsan, K J Shingfield, P Huhtanen
This study evaluated the effects of gradual replacement of a mixture of late-cut grass silage (LS) and barley with early-cut grass silage (ES) on milk production, CH4 emissions, and N utilization in Swedish Red cows. Two grass silages were prepared from the same primary growth of timothy grass sward but harvested 2 wk apart [11.0 and 9.7 MJ of metabolizable energy/kg of dry matter (DM)]. Four diets, fed as a total mixed ration, were formulated to meet the metabolizable energy and protein requirements of 35 kg of energy-corrected milk (ECM) by gradually replacing a mixture of LS and barley with ES (0, 33, 67, and 100% of the forage component of the diet), whereas the proportion of barley decreased from 47...
May 17, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28526435/the-bidirectional-gut-brain-microbiota-axis-as-a-potential-nexus-between-traumatic-brain-injury-inflammation-and-disease
#2
Mark H Sundman, Nan-Kuei Chen, Vignesh Subbian, Ying-Hui Chou
As head injuries and their sequelae have become an increasingly salient matter of public health, experts in the field have made great progress elucidating the biological processes occurring within the brain at the moment of injury and throughout the recovery thereafter. Given the extraordinary rate at which our collective knowledge of neurotrauma has grown, new insights may be revealed by examining the existing literature across disciplines with a new perspective. This article will aim to expand the scope of this rapidly evolving field of research beyond the confines of the central nervous system (CNS)...
May 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28525653/predicted-philogeny-secondary-conformational-structure-and-epitope-antigenicity-of-immunological-sequences-in-poultry
#3
L J Lara, A P Peconick, É J Fassani, A M P Júnior, P R B Chalfun, D L Raymundo, T A Barçante, J M de P Barçante
Poultry production is faced with different types of stresses that are responsible for issues of animal welfare as well as for economic losses. Moreover, the immunity decreases when animals are stressed. In silico analyses are important in reducing the cost and in increasing the accuracy of scientific results. A bioinformatics tool was used to perform ontology studies on 15 different immunological sequences of poultry. The mRNA structures and sequences with maximum antigenic residues were also predicted. No homology was found between the sequences of poultry and mammals...
May 18, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28525642/dynamics-of-sequestration-based-gene-regulatory-cascades
#4
Tatenda Shopera, William R Henson, Tae Seok Moon
Gene regulatory cascades are ubiquitous in biology. Because regulatory cascades are integrated within complex networks, their quantitative analysis is challenging in native systems. Synthetic biologists have gained quantitative insights into the properties of regulatory cascades by building simple circuits, but sequestration-based regulatory cascades remain relatively unexplored. Particularly, it remains unclear how the cascade components collectively control the output dynamics. Here, we report the construction and quantitative analysis of the longest sequestration-based cascade in Escherichia coli...
May 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28525291/the-state-of-opioid-agonist-therapy-in-canada-20-years-after-federal-oversight
#5
Joseph K Eibl, Kristen Morin, Esa Leinonen, David C Marsh
Opioid agonist therapy was introduced in Canada in 1959 with the use of methadone for the treatment of opioid dependence. The regulation of methadone was the responsibility of Health Canada until 1995, when oversight was transferred to the provincial health systems. During the more than 20 years since the federal health authority transferred oversight of methadone to the provincial level, methadone programming has evolved differently in every province. The landscape of opioid dependence treatment is varied across the country, with generally increasing treatment capacity in all provinces and dramatic increases in some...
January 1, 2017: Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie
https://www.readbyqxmd.com/read/28524656/multifunctional-and-redox-responsive-self-assembled-magnetic-nanovectors-for-protein-delivery-and-dual-modal-imaging
#6
Hong Yu Yang, Moon-Sun Jang, Yi Li, Jung Hee Lee, Doo Sung Lee
Nanoparticle (NP)-based model carriers present an emerging strategy for protein delivery. However, constructing a multifunctional nanocarrier with high loading capacity, diagnostic imaging capacity and controlled release capability is a tremendous challenge for protein delivery systems. Thus, we herein report on the fabrication of redox-responsive magnetic nanovectors (termed RMNs) through self- assembly of Fe3O4 NPs and redox-responsive polymer ligands, which could effectively transport protein and trigger intracellular protein release...
May 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28524625/mrna-decay-an-adaptation-tool-for-the-environmental-fungal-pathogen-cryptococcus-neoformans
#7
REVIEW
Amanda L M Bloom, Jay Leipheimer, John C Panepinto
Fungi are ubiquitous in the environment and humans constantly encounter them in the soil, air, water, and food. The vast majority of these interactions are inconsequential. However, in the context of immunodeficiency precipitated by HIV infection, hematologic malignancy, or transplantation, a small subset of fungi can cause devastating, systemic infection. The most deadly of the opportunistic environmental fungi, Cryptococcus neoformans, is estimated to cause hundreds of thousands of deaths per year, mostly in the context of HIV co-infection...
May 19, 2017: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/28524079/assembly-of-hepatocyte-spheroids-using-magnetic-3d-cell-culture-for-cyp450-inhibition-induction
#8
Pujan K Desai, Hubert Tseng, Glauco R Souza
There is a significant need for in vitro methods to study drug-induced liver injury that are rapid, reproducible, and scalable for existing high-throughput systems. However, traditional monolayer and suspension cultures of hepatocytes are difficult to handle and risk the loss of phenotype. Generally, three-dimensional (3D) cell culture platforms help recapitulate native liver tissue phenotype, but suffer from technical limitations for high-throughput screening, including scalability, speed, and handling. Here, we developed a novel assay for cytochrome P450 (CYP450) induction/inhibition using magnetic 3D cell culture that overcomes the limitations of other platforms by aggregating magnetized cells with magnetic forces...
May 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28523344/role-of-g3bp1-in-glucocorticoid-receptor-mediated-microrna-15b-and-microrna-23a-biogenesis-in-endothelial-cells
#9
Hoi-Hin Kwok, Po-Ying Poon, Kylie Hin-Man Mak, Lin-Yao Zhang, Pei Liu, Huoming Zhang, Nai-Ki Mak, Patrick Ying-Kit Yue, Ricky Ngok-Shun Wong
MicroRNAs (miRNAs) are a family of non-coding RNAs that play crucial roles in regulating various normal cellular responses. Recent studies revealed that the canonical miRNA biogenesis pathway is subject to sophisticated regulation. Hormonal control of miRNA biogenesis by androgen and estrogen has been demonstrated, but the direct effects of the glucocorticoid receptor (GR) on miRNA biogenesis are unknown. This study revealed the role of GR in miRNA maturation. We showed that two GR agonists, dexamethasone and ginsenoside-Rg1 rapidly suppressed the expression of mature miR-15b, miR-23a, and miR-214 in human endothelial cells...
May 18, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28522850/pseudomonas-aeruginosa-exolysin-promotes-bacterial-growth-in-lungs-alveolar-damage-and-bacterial-dissemination
#10
Stéphanie Bouillot, Patrick Munro, Benoit Gallet, Emeline Reboud, François Cretin, Guillaume Golovkine, Guy Schoehn, Ina Attrée, Emmanuel Lemichez, Philippe Huber
Exolysin (ExlA) is a recently-identified pore-forming toxin secreted by a subset of Pseudomonas aeruginosa strains identified worldwide and devoid of Type III secretion system (T3SS), a major virulence factor. Here, we characterized at the ultrastructural level the lesions caused by an ExlA-secreting strain, CLJ1, in mouse infected lungs. CLJ1 induced necrotic lesions in pneumocytes and endothelial cells, resulting in alveolo-vascular barrier breakdown. Ectopic expression of ExlA in an exlA-negative strain induced similar tissue injuries...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522144/viscoelastic-tissue-plasminogen-activator-challenge-predicts-massive-transfusion-in-15-minutes
#11
Hunter B Moore, Ernest E Moore, Michael P Chapman, Benjamin R Huebner, Peter M Einersen, Solimon Oushy, Christopher C Silliman, Anirban Banerjee, Angela Sauaia
BACKGROUND: Coagulopathy is associated with massive transfusion in trauma, yet most clinical scores to predict this end point do not incorporate coagulation assays. Previous work has identified that shock increases circulating tissue plasminogen activator (tPA). When tPA levels saturate endogenous inhibitors, systemic hyperfibrinolysis can occur. Therefore, the addition of tPA to a patient's blood sample could stratify a patients underlying degree of shock and early coagulation changes to predict progression to massive transfusion...
April 17, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28521830/evidence-based-policy-responses-to-strengthen-health-community-and-legislative-systems-that-care-for-women-in-australia-with-female-genital-mutilation-cutting
#12
REVIEW
Nesrin Varol, John J Hall, Kirsten Black, Sabera Turkmani, Angela Dawson
BACKGROUND: The physical and psychological impact of female genital mutilation / cutting (FGM/C) can be substantial, long term, and irreversible. Parts of the health sector in Australia have developed guidelines in the management of FGM/C, but large gaps exist in community and professional knowledge of the consequences and treatment of FGM/C. The prevalence of FGM/C amongst Australian women is unknown. Our article reviews the literature on research on FGM/C in Australia, which focuses on health system response to women and girls with FGM/C...
May 18, 2017: Reproductive Health
https://www.readbyqxmd.com/read/28520958/the-development-use-and-impact-of-a-global-laboratory-database-during-the-2014-ebola-outbreak-in-west-africa
#13
Kara N Durski, Shalini Singaravelu, Junxiong Teo, Dhamari Naidoo, Luke Bawo, Amara Jambai, Sakoba Keita, Ali Ahmed Yahaya, Beatrice Muraguri, Brice Ahounou, Victoria Katawera, Fredson Kuti-George, Yacouba Nebie, T Henry Kohar, Patrick Jowlehpah Hardy, Mamoudou Harouna Djingarey, David Kargbo, Nuha Mahmoud, Yewondwossen Assefa, Orla Condell, Magassouba N'Faly, Leon Van Gurp, Margaret Lamanu, Julia Ryan, Boubacar Diallo, Foday Daffae, Dikena Jackson, Fayyaz Ahmed Malik, Philomena Raftery, Pierre Formenty
Background: The international impact, rapid widespread transmission, and reporting delays during the 2014 Ebola virus disease (EVD) outbreak in West Africa highlighted the need for a global, centralized database to inform outbreak response. The World Health Organization and Emerging and Dangerous Pathogens Laboratory Network addressed this need by supporting the development of a global laboratory database. Methods: Specimens were collected in the affected countries from patients and dead bodies meeting the case definitions for EVD...
May 18, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28515776/hormonally-active-phytochemicals-and-vertebrate-evolution
#14
Max R Lambert, Thea M Edwards
Living plants produce a diversity of chemicals that share structural and functional properties with vertebrate hormones. Wildlife species interact with these chemicals either through consumption of plant materials or aquatic exposure. Accumulating evidence shows that exposure to these hormonally active phytochemicals (HAPs) often has consequences for behavior, physiology, and fecundity. These fitness effects suggest there is potential for an evolutionary response by vertebrates to HAPs. Here, we explore the toxicological HAP-vertebrate relationship in an evolutionary framework and discuss the potential for vertebrates to adapt to or even co-opt the effects of plant-derived chemicals that influence fitness...
June 2017: Evolutionary Applications
https://www.readbyqxmd.com/read/28515303/spontaneous-and-vaccine-induced-clearance-of-mus-musculus-papillomavirus-type-1-mmupv1-muspv1-infection
#15
Rosie T Jiang, Joshua W Wang, Shiwen Peng, Tsui-Chin Huang, Chenguang Wang, Fabiana Cannella, Yung-Nien Chang, Raphael P Viscidi, Simon R A Best, Chien-Fu Hung, Richard B S Roden
Mus musculus Papillomavirus1 (MmuPV1/MusPV1) induces persistent papillomas in immunodeficient mice but not common laboratory strains. To facilitate study of immune control, we sought an outbred and immune competent laboratory mouse strain in which persistent papillomas could be established. We found that challenge of SKH1 mice (Crl:SKH1-Hrhr) by scarification on their tail with MmuPV1 resulted in three clinical outcomes: 1) persistent (>2 months) papillomas (∼20%), 2) transient papillomas that spontaneously regress typically within 2 months (∼15%), 3) no visible papillomas and viral clearance (∼65%)...
May 17, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28512145/the-cytotoxic-type-3-secretion-system-1-of-vibrio-rewires-host-gene-expression-to-subvert-cell-death-and-activate-cell-survival-pathways
#16
Nicole J De Nisco, Mohammed Kanchwala, Peng Li, Jessie Fernandez, Chao Xing, Kim Orth
Bacterial effectors potently manipulate host signaling pathways. The marine bacterium Vibrio parahaemolyticus (V. para) delivers effectors into host cells through two type 3 secretion systems (T3SSs). T3SS1 is vital for V. para survival in the environment, whereas T3SS2 causes acute gastroenteritis in human hosts. Although the natural host is undefined, T3SS1 effectors attack highly conserved cellular processes and pathways to orchestrate nonapoptotic cell death. To understand how the concerted action of T3SS1 effectors globally affects host cell signaling, we compared gene expression changes over time in primary fibroblasts infected with V...
May 16, 2017: Science Signaling
https://www.readbyqxmd.com/read/28512092/quantitative-kinetic-analyses-of-shutting-off-a-two-component-system
#17
Rong Gao, Ann M Stock
Cells rely on accurate control of signaling systems to adapt to environmental perturbations. System deactivation upon stimulus removal is as important as activation of signaling pathways. The two-component system (TCS) is one of the major bacterial signaling schemes. In many TCSs, phosphatase activity of the histidine kinase (HK) is believed to play an essential role in shutting off the pathway and resetting the system to the prestimulus state. Two basic challenges are to understand the dynamic behavior of system deactivation and to quantitatively evaluate the role of phosphatase activity under natural cellular conditions...
May 16, 2017: MBio
https://www.readbyqxmd.com/read/28511370/correlation-of-plasma-neutrophil-elastase-activity-and-endogenous-protease-inhibitor-levels-with-the-severity-of-pre-eclampsia
#18
Mamatha Kunder, Av Moideen Kutty, V Lakshmaiah, S R Sheela
INTRODUCTION: Pre-eclampsia (PE) is a common maternal syndrome characterized by severe systemic inflammatory response including neutrophil activation leading to uncontrolled activity of elastase. The excessive activity of elastase would lead to destroyal of the integrity of endothelial cells and could exacerbate the pathophysiological symptoms in PE. Thus, assessment of NE activity and its control mechanisms would be of relevance in the determination of severity of PE. AIM: To correlate the activity of plasma NE and its endogenous inhibitors α1-antitrypsin (α1-AT) and α2-macroglobulin (α2-MG) with severity of PE...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28509738/it-s-been-a-hard-day-s-night-what-determines-impact-of-less-than-24-7-rapid-response-systems
#19
Christian P Subbe, John Welch
No abstract text is available yet for this article.
June 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28508578/proteomic-characterization-of-el4-lymphoma-derived-tumors-upon-chemotherapy-treatment-reveals-potential-roles-for-lysosomes-and-caspase-6-during-tumor-cell-death-in-vivo
#20
David A Kramer, Mohamed A Eldeeb, Melinda Wuest, John Mercer, Richard P Fahlman
The murine EL4 tumor model is an established in vivo apoptosis model for the investigation of novel cancer imaging agents and immunological treatments due to the rapid and significant response of the EL4 tumors to cyclophosphamide and etoposide combination chemotherapy. Despite the utility of this model system in cancer research little is known regarding the molecular details of the in vivo tumor cell death. Here we report the first in-depth quantitative proteomic analysis of the changes that occur in these tumors upon cyclophosphamide and etoposide treatment in vivo...
May 15, 2017: Proteomics
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