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https://www.readbyqxmd.com/read/29223138/plant-expressed-fc-fusion-protein-tetravalent-dengue-vaccine-with-inherent-adjuvant-properties
#1
Mi Young Kim, Alastair Copland, Kaustuv Nayak, Anmol Chandele, Muhammad Shamsher Ahmed, Qibo Zhang, Gil Reynolds Diogo, Matthew John Paul, Sven Hofmann, Moon-Sik Yang, Yong-Suk Jang, Julian K-C Ma, Rajko Reljic
Dengue is a major global disease requiring improved treatment and prevention strategies. The recently licensed Sanofi-Pasteur Denvaxia vaccine does not protect children under the age of nine and additional vaccine strategies are thus needed to halt this expanding global epidemic. Here, we employed a molecular engineering approach and plant-expression to produce a humanised and highly immunogenic Poly-Immunoglobulin G Scaffold (PIGS) fused to the consensus dengue envelope protein III domain (cEDIII). The immunogenicity of this IgG Fc receptor targeted vaccine candidate was demonstrated in transgenic mice expressing human FcγRI/CD64, by induction of neutralising antibodies and evidence of cell-mediated immunity...
December 9, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/29222716/childhood-acute-disseminated-encephalomyelitis-an-egyptian-pilot-study
#2
Hamed Ahmed Elkhayat, Omnia Fathy El-Rashidy, Iman Ali Elagouza, Raghda Zaitoun, Yasser Abdel Azeem Abbas
Describing the variable clinical features, laboratory findings, neuroimaging findings, and treatments given to children who presented with ADEM and following them up both clinically and radiologically. 21 patients were recruited: 14 new cases, and 7 old ones presenting over the preceding 5 years (retrospective review of existing data). 11 males and 10 females, with a mean age of 4.4 years ± 2.7 SD, were included. All new patients were subject to full history, examination and a panel of investigations including MRI of the brain...
December 8, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/29222409/immune-stealth-driven-o2-serotype-prevalence-and-potential-for-therapeutic-antibodies-against-multidrug-resistant-klebsiella-pneumoniae
#3
Meghan E Pennini, Anna De Marco, Mark Pelletier, Jessica Bonnell, Romana Cvitkovic, Martina Beltramello, Elisabetta Cameroni, Siro Bianchi, Fabrizia Zatta, Wei Zhao, Xiaodong Xiao, Maria M Camara, Antonio DiGiandomenico, Elena Semenova, Antonio Lanzavecchia, Paul Warrener, JoAnn Suzich, Qun Wang, Davide Corti, C Kendall Stover
Emerging multidrug-resistant bacteria are a challenge for modern medicine, but how these pathogens are so successful is not fully understood. Robust antibacterial vaccines have prevented and reduced resistance suggesting a pivotal role for immunity in deterring antibiotic resistance. Here, we show the increased prevalence of Klebsiella pneumoniae lipopolysaccharide O2 serotype strains in all major drug resistance groups correlating with a paucity of anti-O2 antibodies in human B cell repertoires. We identify human monoclonal antibodies to O-antigens that are highly protective in mouse models of infection, even against heavily encapsulated strains...
December 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/29222332/stabilization-of-the-gp120-v3-loop-through-hydrophobic-interactions-reduces-the-immunodominant-v3-directed-non-neutralizing-response-to-hiv-1-envelope-trimers
#4
Steven W de Taeye, Alba Torrents de la Peña, Andrea Vecchione, Enzo Scutigliani, Kwinten Sliepen, Judith A Burger, Patricia van der Woude, Anna Schorcht, Edith E Schermer, Marit J van Gils, Celia C LaBranche, David C Montefiori, Ian A Wilson, John P Moore, Andrew B Ward, Rogier W Sanders
To provide protective immunity against circulating primary HIV-1 strains, a vaccine most likely has to induce broadly neutralizing antibodies (bNAbs) to the HIV-1 envelope (Env) glycoprotein spike. Recombinant Env trimers such as the prototype BG505 SOSIP.664 that closely mimic the native Env spike can induce autologous neutralizing antibodies (NAbs) against relatively resistant (tier-2) primary viruses. Ideally, Env immunogens should present bNAb epitopes, but limit the presentation of immunodominant non-NAb epitopes that might induce off-target and potentially interfering responses...
December 8, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29222325/cells-to-prevent-treat-relapse-following-allogeneic-stem-cell-transplantation
#5
REVIEW
Andrew C Dietz, Alan S Wayne
Relapse of cancer remains one of the primary causes of treatment failure and mortality after allogeneic hematopoietic stem cell transplantation (HSCT). A multitude of approaches have been used in the management of posttransplant relapse. This review focuses on recent data with cellular therapies designed to treat or prevent posttransplant relapse of hematologic malignancies, although many of these therapeutic approaches also have applications to solid tumors and in the nontransplant setting. Currently available cell therapies include second transplant, natural killer cells, monocyte-derived dendritic cell vaccines, and lymphocytes via donor lymphocyte infusion, antigen-primed cytotoxic T lymphocytes, cytokine-induced killer cells, marrow-infiltrating lymphocytes, and chimeric antigen receptor T cells...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29222179/hpv-vaccination-rate-in-french-adolescent-girls-an-example-of-vaccine-distrust
#6
Hervé Lefèvre, Cécile Schrimpf, Marie Rose Moro, Jonathan Lachal
OBJECTIVES: To explore the clinical issues of human papillomavirus (HPV) vaccination to develop explanatory hypotheses for the low level of vaccination among adolescent girls in France where the full course coverage is low (<15%). DESIGN: We used semistructured interviews. Our qualitative and phenomenological procedure applied interpretative phenomenological analysis. PARTICIPANTS: 16 physicians regularly faced with the prescription of HPV vaccine, represented several medical specialties (paediatrics, general practice, internal medicine, gynaecology), with hospitalist or private practices...
December 8, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/29222103/a-novel-non-antibiotic-lgt-based-selection-system-for-stable-maintenance-of-expression-vectors-in-escherichia-coli-and-vibrio-cholerae
#7
Manuela Terrinoni, Stefan L Nordqvist, Susanne Källgård, Jan Holmgren, Michael Lebens
Antibiotic selection for maintenance of expression plasmids is discouraged in production of recombinant proteins for pharmaceutical or other human uses due to the risks of antibiotic residue contamination of the final products and release of DNA encoding antibiotic resistance into the environment. We describe the construction of expression plasmids that are instead maintained by complementation of the lgt gene encoding a (pro)lipoprotein glyceryl transferase essential for biosynthesis of bacterial lipoprotein...
December 8, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29221895/report-on-eighth-who-meeting-on-development-of-influenza-vaccines-that-induce-broadly-protective-and-long-lasting-immune-responses-chicago-usa-23-24-august-2016
#8
Justin R Ortiz, Julian Hickling, Rebecca Jones, Armen Donabedian, Othmar G Engelhardt, Jacqueline M Katz, Shabir A Madhi, Kathleen M Neuzil, Guus F Rimmelzwaan, James Southern, David J Spiro, Joachim Hombach
In August 2016, the World Health Organization (WHO) convened the "Eighth meeting on development of influenza vaccines that induce broadly protective and long-lasting immune responses" to discuss the regulatory requirements and pathways for licensure of next-generation influenza vaccines, and to identify areas where WHO can promote the development of such vaccines. Participants included approximately 120 representatives of academia, the vaccine industry, research and development funders, and regulatory and public health agencies...
December 5, 2017: Vaccine
https://www.readbyqxmd.com/read/29221894/efficacy-of-an-inactivated-mycoplasma-hyorhinis-vaccine-in-pigs
#9
Brian Martinson, Whitney Zoghby, Kenneth Barrett, Lawrence Bryson, Rodney Christmas, F C Minion, Jeremy Kroll
Lameness and polyserositis in pigs caused by Mycoplasma hyorhinis are generally treated with antibiotics and may require multiple doses. The costs of these antibiotics combined with economic losses from culling and reduced feed conversion due to lameness are hardships to the swine producer. In this study we have demonstrated efficacy of an inactivated M. hyorhinis vaccine administered to three-week old caesarian-derived colostrum-deprived piglets. Three doses of vaccine (high, medium, and low) were evaluated and compared to a placebo control...
December 5, 2017: Vaccine
https://www.readbyqxmd.com/read/29221893/cardioprotective-effect-of-influenza-and-pneumococcal-vaccination-in-patients-with-cardiovascular-diseases
#10
REVIEW
Andrzej Ciszewski
Due to the wide interaction between the respiratory and the circulatory systems, influenza and pneumococcal vaccinations are recommended in the prevention and treatment of cardiovascular diseases. The review summarizes the results of recent studies and meta-analyses demonstrating that in this group of high-risk patients both vaccinations have potentially beneficial properties. However, in the era of Evidence Base Medicine, there is still a lack of randomized prospective clinical trials, especially those evaluating the effect of pneumococcal vaccination...
December 5, 2017: Vaccine
https://www.readbyqxmd.com/read/29221826/trends-of-invasive-pneumococcal-disease-and-its-serotypes-in-the-autonomous-community-of-madrid
#11
Pello Latasa Zamalloa, Juan Carlos Sanz Moreno, María Ordobás Gavín, María Dolores Barranco Ordoñez, Esther Insúa Marisquerena, Ángel Gil de Miguel, Abelardo Claudio Fernández Chávez, Luis García-Comas
INTRODUCTION: Streptococcus pneumoniae is an important cause of morbidity. Vaccination is the most effective measure to prevent it. The aim of this study is to analyse the evolution of invasive pneumococcal disease (IPD). MATERIAL AND METHODS: Observational study of IPD cases notified to the Epidemiological Surveillance Network of the Autonomous Community of Madrid between 2008 and 2015. The IPD case was defined as the disease caused by Streptococcus pneumoniae, with isolation and DNA or antigen detection, in samples from normally sterile sites...
December 5, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/29221729/high-dimensional-phenotypic-mapping-of-human-dendritic-cells-reveals-interindividual-variation-and-tissue-specialization
#12
Marcela Alcántara-Hernández, Rebecca Leylek, Lisa E Wagar, Edgar G Engleman, Tibor Keler, M Peter Marinkovich, Mark M Davis, Garry P Nolan, Juliana Idoyaga
Given the limited efficacy of clinical approaches that rely on ex vivo generated dendritic cells (DCs), it is imperative to design strategies that harness specialized DC subsets in situ. This requires delineating the expression of surface markers by DC subsets among individuals and tissues. Here, we performed a multiparametric phenotypic characterization and unbiased analysis of human DC subsets in blood, tonsil, spleen, and skin. We uncovered previously unreported phenotypic heterogeneity of human cDC2s among individuals, including variable expression of functional receptors such as CD172a...
November 28, 2017: Immunity
https://www.readbyqxmd.com/read/29221616/dengue-fever-report-from-the-task-force-on-tropical-diseases-by-the-world-federation-of-societies-of-intensive-and-critical-care-medicine
#13
REVIEW
Pravin Amin, Özlem Acicbe, Jorge Hidalgo, Juan Ignacio Silesky Jiménez, Tim Baker, Guy A Richards
Dengue is an arbovirus affecting humans and spread by mosquitoes. Severe dengue follows a secondary infection with a different virus serotype. The problem is truly global as it is endemic in over 100 countries. Severe dengue can be a life-threatening because of increased vascular permeability, resulting in leakage of fluid from the intravascular compartment to the extravascular space. When major bleeding does occur, it is almost invariably combined with profound shock since this, in combination with thrombocytopenia, hypoxia, and acidosis, can lead to multiple organ failure and disseminated intravascular coagulation...
November 5, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/29221615/is-exposure-to-aluminium-adjuvants-associated-with-social-impairments-in-mice-a-pilot-study
#14
Sneha K S Sheth, Yongling Li, Christopher A Shaw
BACKGROUND: Our group has shown that significant correlations exist between rates of Autism Spectrum Disorder (ASD) and total aluminum adjuvants given to children through vaccines in several Western countries. These correlations satisfied eight out of nine Hill criteria for causality. Experimental studies have demonstrated a range of behavioural abnormalities in young mice after postnatal exposure to aluminium. To build on our previous work, the current study will investigate the effect of aluminium adjuvants on social behaviour in mice...
November 21, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/29221529/the-effect-of-early-marriage-timing-on-women-s-and-children-s-health-in-sub-saharan-africa-and-southwest-asia
#15
Marcos Delprato, Kwame Akyeampong
BACKGROUND: Age of marriage is a barrier to mother's health care around pregnancy and children health outcomes. OBJECTIVE: We provide evidence on the health benefits of postponing early marriage among young wives (from age 10-14 to age 15-17) on women's health care and children's health for sub-Saharan Africa (SSA) and Southwest Asia (SWA). METHODS: We use data for 39 countries from the Demographic and Health Surveys to estimate the effects of postponing early marriage for women's health care and children's health outcomes and immunization using matching techniques...
May 2017: Annals of Global Health
https://www.readbyqxmd.com/read/29221217/the-association-between-human-papillomavirus-infection-and-lung-cancer-a-system-review-and-meta-analysis
#16
Wei-Min Xiong, Qiu-Ping Xu, Xu Li, Ren-Dong Xiao, Lin Cai, Fei He
To estimate the global attributable fraction of human papillomavirus (HPV) in lung cancer, we provided updated information through a system review and meta-analysis. We did a literature search on PubMed, Ovid and Web of Science to identify case-control studies and cohort studies that detected HPV in lung carcinomas. We included studies that tested 30 or more cases and were published before Feb 28, 2017. We collected information about gender, smoking status, HPV detection methods, HPV types, materials and clinical features...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220723/gold-nanoparticles-enhance-radiation-sensitization-and-suppress-colony-formation-in-a-feline-injection-site-sarcoma-cell-line-in-vitro
#17
J Z Benton, R J Williams, A Patel, K Meichner, J Tarigo, K Nagata, T D Pethel, R M Gogal
Injection Site Sarcomas (ISS) are highly invasive feline malignant tumors that are frequently associated with routine vaccination. Current treatment modalities include chemotherapy, radiation, and radical surgery. ISS have been shown to be one of the most treatment resistant of feline cancers with high rates of recurrence. Previous studies have shown that gold and other high atomic number nanoparticles have the ability to increase the dose of radiation deposited into tissue by generating secondary electrons...
December 2, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29220721/novel-effect-of-methionine-enkephalin-against-influenza-a-virus-infection-through-inhibiting-tlr7-myd88-traf6-nf-%C3%AE%C2%BAb-p65-signaling-pathway
#18
Jing Tian, Xue Jiao, Xiaonan Wang, Jin Geng, Reizhe Wang, Ning Liu, Xinhua Gao, Noreen Griffin, Fengping Shan
The morbidity and mortality associated with influenza A virus infections, have stimulated the search for novel prophylactic and therapeutic drugs. The purpose of this study was to investigate the prophylactic and therapeutic effect of synthetic methionine enkephalin (MENK) on mice infected by A/PR/8/34 influenza virus (H1N1) in vivo. The results showed that MENK could exert both prophylactic and therapeutic influences on infected mice, significantly improve the survival rate, relieve acute lung injury and decrease cytokine (IFN-α, IFN-β, TNF-α, IL-6, and IL-1β) levels...
December 5, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29220709/self-reported-influenza-vaccination-rates-and-attitudes-towards-vaccination-among-health-care-workers-results-of-a-survey-in-a-german-university-hospital
#19
M H Hagemeister, N K Stock, T Ludwig, P Heuschmann, U Vogel
OBJECTIVES: The objective of this survey was to analyse vaccination rates and attitudes towards vaccination among health care workers (HCWs). The period prevalence of self-reported acute respiratory infections in the influenza season 2014/2015 was examined. STUDY DESIGN: A cross-sectional study was conducted among HCWs of a German university hospital using an anonymised questionnaire. Recruitment was performed by providing all medical and nursing staff a paper questionnaire with an invitation to participate...
December 5, 2017: Public Health
https://www.readbyqxmd.com/read/29220514/the-influence-of-social-norms-on-flu-vaccination-among-african-american-and-white-adults
#20
Sandra Crouse Quinn, Karen M Hilyard, Amelia M Jamison, Ji An, Gregory R Hancock, Donald Musa, Vicki S Freimuth
Adult influenza vaccination rates remain suboptimal, particularly among African Americans. Social norms may influence vaccination behavior, but little research has focused on influenza vaccine and almost no research has focused on racially-specific norms. This mixed methods investigation utilizes qualitative interviews and focus groups (n = 118) and national survey results (n = 1643) to assess both descriptive and subjective norms surrounding influenza vaccination. Qualitative results suggest a perceived descriptive norm that 'about half' of the population gets vaccinated...
December 6, 2017: Health Education Research
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