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https://www.readbyqxmd.com/read/28434129/phage-displayed-peptides-that-mimic-epitopes-of-hepatitis-e-virus-capsid
#1
Osmany Larralde, Juraj Petrik
Hepatitis E is an emerging zoonotic infection of increasing public health threat for the UK, especially for immunosuppressed individuals. A human recombinant vaccine has been licensed only in China and is not clear whether it protects against hepatitis E virus (HEV) genotype 3, the most prevalent in Europe. The aim of this study was to use phage display technology as a tool to identify peptides that mimic epitopes of HEV capsid (mimotopes). We identified putative linear and conformational mimotopes using sera from Scottish blood donors that have the immunological imprint of past HEV infection...
April 22, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28434128/aspects-on-the-history-of-transmission-and-favor-of-distribution-of-viruses-by-iatrogenic-action-perhaps-an-example-of-a-paradigm-of-the-worldwide-spread-of-hiv
#2
REVIEW
Lutz G Gürtler, Josef Eberle
Transmission of infectious agents might be associated with iatrogenic actions of charitable help in health care. An example is the vaccination against yellow fever in USA that transmitted hepatitis B virus. Another example is injections of praziquantel for treatment and cure of schistosomiasis in Central and Northern Africa, with a focus in Egypt that has spread hepatitis C virus. There is no indication that human T-lymphotropic virus type 1 was spread by injection treatment for African trypanosomiasis, syphilis and treponematosis, but these treatments might have contributed to the early spread of human immunodeficiency virus type 1 (HIV-1) in Central Africa...
April 22, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28434112/dendritic-cell-based-vaccination-strategy-an-evolving-paradigm
#3
REVIEW
Anna C Filley, Mahua Dey
Malignant gliomas (MG), tumors of glial origin, are the most commonly diagnosed primary intracranial malignancies in adults. Currently available treatments have provided only modest improvements in overall survival and remain limited by inevitable local recurrence, necessitating exploration of novel therapies. Among approaches being investigated, one of the leading contenders is immunotherapy, which aims to modulate immune pathways to stimulate the selective destruction of malignant cells. Dendritic cells (DCs) are potent initiators of adaptive immune responses and therefore crucial players in the development and success of immunotherapy...
April 22, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28434087/hepatitis-b-during-pregnancy-in-endemic-areas-screening-treatment-and-prevention-of-mother-to-child-transmission
#4
Naichaya Chamroonkul, Teerha Piratvisuth
The proper management of pregnant women infected with hepatitis B virus (HBV) is necessary to prevent maternal and fetal morbidity and mortality and to protect the baby from HBV infection. In the majority of cases, vertical transmission can be prevented with a universal screening program, HBV vaccine immunoprophylaxis, and administration of hepatitis B immunoglobulin (HBIg) for babies born to mothers with HBV. However, in mothers with a high viral load (>200,000 or >1,000,000 IU/ml, depending on the guideline), the chance of immunoprophylaxis failure remains high...
April 22, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28433944/evaluation-of-vaccinal-effectiveness-of-preparations-containing-membrane-antigens-of-leishmania-l-amazonensis-in-experimental-cutaneous-leishmaniasis-model
#5
João G Ribeiro, Amália S Ferreira, Sharon R A Macedo, Norton R D L P Rossi, Mayara C P da Silva, Rosane N M Guerra, Neuza B de Barros, Roberto Nicolete
American tegumentary leishmaniasis (ATL) is considered a neglected disease, for which an effective vaccine or an efficient diagnosis is not yet available and whose chemotherapeutic arsenal is threatened by the emergence of resistance by etiological agents such as Leishmania amazonensis. ATL is endemic in poor countries and has a high incidence in Brazil. Vaccines developed from native parasite fractions have led to the identification of defined antigenic subunits and the development of vaccine adjuvant technology...
April 20, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28433849/clinical-significance-of-long-term-follow-up-of-children-with-posttraumatic-skull-base-fracture
#6
Sharon Leibu, Guy Rosenthal, Yigal Shoshan, Mony Benifla
BACKGROUND: To assess in children with skull base fractures, incidences of cerebrospinal fluid (CSF) leak, meningitis, and the need for prophylactic antibiotics, anti-pneumococcal vaccination, and surgical interventions. METHODS: We reviewed the records of children with skull base fractures who were admitted to our tertiary care center during 2009-2014. RESULTS: 196 children (153 male) were hospitalized with skull base fractures, aged 1 month to 18 years (mean 6 ± 4 years)...
April 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28433777/design-and-expeditious-synthesis-of-organosilanes-as-potent-antivirals-targeting-multidrug-resistant-influenza-a-viruses
#7
Yanmei Hu, Yuanxiang Wang, Fang Li, Chunlong Ma, Jun Wang
The efficacy of current influenza vaccines and small molecule antiviral drugs is curtailed by the emerging of multidrug-resistant influenza viruses. As resistance to the only FDA-approved oral influenza antiviral, oseltamivir (Tamiflu), continues to rise, there is a clear need to develop the next-generation of antiviral drugs. Since more than 95% of current circulating influenza A viruses carry the S31N mutation in their M2 genes, the AM2-S31N mutant proton channel represents an attractive target for the development of broad-spectrum antivirals...
April 19, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28433705/maternal-immunisation-collaborating-with-mother-nature
#8
REVIEW
Arnaud Marchant, Manish Sadarangani, Mathieu Garand, Nicolas Dauby, Valerie Verhasselt, Lenore Pereira, Gordean Bjornson, Christine E Jones, Scott A Halperin, Kathryn M Edwards, Paul Heath, Peter J Openshaw, David W Scheifele, Tobias R Kollmann
Maternal immunisation has the potential to substantially reduce morbidity and mortality from infectious diseases after birth. The success of tetanus, influenza, and pertussis immunisation during pregnancy has led to consideration of additional maternal immunisation strategies to prevent group B streptococcus and respiratory syncytial virus infections, among others. However, many gaps in knowledge regarding the immunobiology of maternal immunisation prevent the optimal design and application of this successful public health intervention...
April 19, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28433704/pertussis-and-influenza-immunisation-during-pregnancy-a-landscape-review
#9
REVIEW
Bahaa Abu Raya, Kathryn M Edwards, David W Scheifele, Scott A Halperin
Immunisation during pregnancy is a relatively new strategy, and is currently limited to tetanus, pertussis, and influenza vaccines. None of these vaccines were developed specifically for use in pregnancy, but they provide an effective method of protecting mothers and young infants. In response to increases in pertussis morbidity and mortality among young infants, several countries have recommended universal tetanus, diphtheria, and acellular pertussis immunisation during pregnancy. Similarly, many countries recommend influenza immunisation during pregnancy to reduce the risk of disease for mother and infant...
April 19, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28433702/group-b-streptococcus-and-respiratory-syncytial-virus-immunisation-during-pregnancy-a-landscape-analysis
#10
REVIEW
Paul T Heath, Fiona J Culley, Christine E Jones, Beate Kampmann, Kirsty Le Doare, Marta C Nunes, Manish Sadarangani, Zain Chaudhry, Carol J Baker, Peter J M Openshaw
Group B streptococcus and respiratory syncytial virus are leading causes of infant morbidity and mortality worldwide. No licensed vaccines are available for either disease, but vaccines for both are under development. Severe respiratory syncytial virus disease can be prevented by passively administered antibody. The presence of maternal IgG antibody specific to respiratory syncytial virus is associated with reduced prevalence and severity of respiratory syncytial virus disease in the first few weeks of life, whereas maternal serotype-specific anticapsular antibody is associated with protection against both early-onset and late-onset group B streptococcus disease...
April 19, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28433580/description-of-a-novel-multiplex-avidity-assay-for-evaluating-hpv-antibodies
#11
Allison M Brady, Elizabeth R Unger, Gitika Panicker
Limited data exists regarding antibody avidity for human papillomavirus (HPV). We describe development of a multiplex electrochemiluminescent avidity ELISA for four HPV types (HPV 6, 11, 16, 18) by adding a dissociating step to our established multiplex HPV VLP ELISA. Initial experiments exploring ammonium thiocyanate, sodium thiocyanate and guanidine hydrochloride (GuHCl) as dissociating agents identified GuHCl as most promising. Dissociation conditions with GuHCl were varied (concentration, incubation time, temperature) to select conditions with minimal impact on VLP integrity as measured with monoclonal antibodies to conformational epitopes...
April 19, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28433563/aryl-thiosemicarbazones-in-vitro-and-immunomodulatory-activities-against-l-amazonensis
#12
Aline Caroline da Silva, Thiago André Ramos Dos Santos, Isis Viviane Bezerra da Silva, Marcos Victor Gregório de Oliveira, Diogo Rodrigo Magalhães Moreira, Ana Cristina Lima Leite, Valéria Rêgo Alves Pereira
Leishmaniasis is an infection caused by different species of Leishmania genus. Currently, there is no vaccine available for Leishmania infections in humans and conventional treatments are limited due to side effects. Therefore, the development of new antileishmanial drugs is an urgent need. In present study, we evaluated the cytotoxicity in host cells, leishmanicidal activity and immunomodulatory potential of seven aryl thiosemicarbazones. Host cell cytotoxicity was determined in peritoneal macrophages of BALB/c mouse, antiparasitic activity was determined against promastigotes and amastigotes of WHOM/00LTB 0016 strain of L...
April 19, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28433331/-decrease-in-the-incidence-of-chickenpox-in-the-community-of-madrid-after-universal-childhood-immunization-years-2001-2015
#13
Luis García Comas, Pello Latasa Zamalloa, Guadalupe Alemán Vega, María Ordobás Gavín, Araceli Arce Arnáez, Inmaculada Rodero Garduño, Alicia Estirado Gómez, Ester Insúa Marisquerena
OBJECTIVE: Varicella vaccine was recommended in the Community of Madrid (CM) at 15months of age between November 2006 and December 2013. The objective was to describe the impact of vaccination on the incidence of varicella in the CM during the period 2001-2015. DESIGN: A descriptive study of cases of varicella reported to the Sentinel Physician Network of the CM and the cases recorded in the Minimum Basic Data Set at hospital discharge was carried out. Total incidence of cases and of hospital admissions were calculated, as well as specific incidence by age and sex...
April 19, 2017: Atencion Primaria
https://www.readbyqxmd.com/read/28433330/bivalent-rlp2086-trumenba%C3%A2-development-of-a-well-characterized-vaccine-through-commercialization
#14
Khurram Sunasara, John Cundy, Sriram Srinivasan, Brad Evans, Weiqiang Sun, Scott Cook, Eric Bortell, John Farley, Daniel Griffin, Michele Bailey Piatchek, Katherine Arch-Douglas
The phrase "Process is the Product" is often applied to biologics, including multicomponent vaccines composed of complex components that evade complete characterization. Vaccine production processes must be defined and locked early in the development cycle to ensure consistent quality of the vaccine throughout scale-up, clinical studies, and commercialization. This approach of front-loading the development work helped facilitate the accelerated approval of the Biologic License Application for the well-characterized vaccine bivalent rLP2086 (Trumenba®, Pfizer Inc) in 2014 under Breakthrough Therapy Designation...
April 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28433329/measles-epidemics-and-seroepidemiology-of-population-in-wujin-changzhou-city-jiangsu-province-china-2015
#15
Lingyan Tang, Yihong Zhou, Yingzi Pan, Hongming Zhu
The measles epidemic was rather severe in Wujin 2015, and a seroprevalence survey of measles antibody was conducted during June to September 2015 in Wjin district of Changzhou city. Blood samples were collected from community health population and convenient samples of residual blood from hospitals. Measles-specific IgG levels were measured by ELISA assay. A total of 122 measles cases were reported 2015 in Wujin district with an incidence of 8.31 per 100000 populations. A large proportion of measles cases were adults ≥20years (62...
April 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28433328/role-of-non-traditional-locations-for-seasonal-flu-vaccination-empirical-evidence-and-evaluation
#16
Namhoon Kim, Travis P Mountain
This study investigated the role of non-traditional locations in the decision to vaccinate for seasonal flu. We measured individuals' preferred location for seasonal flu vaccination by examining the National H1N1 Flu Survey (NHFS) conducted from late 2009 to early 2010. Our econometric model estimated the probabilities of possible choices by varying individual characteristics, and predicted the way in which the probabilities are expected to change given the specific covariates of interest. From this estimation, we observed that non-traditional locations significantly influenced the vaccination of certain individuals, such as those who are high-income, educated, White, employed, and living in a metropolitan statistical area (MSA), by increasing the coverage...
April 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28433327/replacing-antibodies-with-modified-dna-aptamers-in-vaccine-potency-assays
#17
Jeremiah J Trausch, Mary Shank-Retzlaff, Thorsten Verch
Vaccine in vitro potency assays are vital regulatory tests that are used to confirm the presence and concentration of an antigen of interest in a form that directly or indirectly relates to protective activity in patients. Current assays come in many forms, but they almost exclusively use antibody reagents for selective detection of the target antigen. Antibodies provide specific recognition of vaccine antigens but also exhibit drawbacks such as stability limitations, cost, and lot-to-lot variation, which can make it challenging to maintain the reagent throughout the lifetime of the vaccine...
April 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28433326/status-of-the-development-of-a-vaccine-against-mycoplasma-bovis
#18
REVIEW
Jose Perez-Casal, Tracy Prysliak, Teresa Maina, Muhammad Suleman, Steve Jimbo
Mycoplasma bovis is an important pathogen of cattle and, despite numerous efforts an effective vaccine for control of the disease it causes remains elusive. Although we now know more about the biology of this pathogen, information is lacking about appropriate protective antigens, the type of immune response that confers protection and adjuvants selection. The use of conserved recombinant proteins, selected using in silico approaches, as components of a vaccine may be a better choice over bacterin-based vaccines due to the limited protection afforded by them and adverse reactions caused by them...
April 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28433120/additional-cost-because-of-pneumonia-in-nursing-home-residents-results-from-the-incidence-of-pneumonia-and-related-consequences-in-nursing-home-resident-study
#19
Nadège Costa, Emiel O Hoogendijk, Michael Mounié, Robert Bourrel, Yves Rolland, Bruno Vellas, Laurent Molinier, Matteo Cesari
OBJECTIVES: Pneumonia is a frequent condition in older people. Our aim was to examine the total healthcare cost related to pneumonia in nursing home (NH) residents over a 1-year follow-up period. DESIGN: This was a prospective, longitudinal, observational, and multicenter study that was a part of the Incidence of Pneumonia and related Consequences in Nursing Home Resident study. SETTING: Thirteen NHs located in Languedoc Roussillon and Midi-Pyrénées regions in France were included...
May 1, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28433052/metabolomics-strategies-to-define-the-role-of-metabolism-in-virus-infection-and-pathogenesis
#20
Marianne Manchester, Anisha Anand
Metabolomics is an analytical profiling technique for measuring and comparing large numbers of metabolites present in biological samples. Combining high-throughput analytical chemistry and multivariate data analysis, metabolomics offers a window on metabolic mechanisms. Because they intimately utilize and often rewire host metabolism, viruses are an excellent choice to study by metabolomics techniques. Studies of the effects of viruses on metabolism during replication in vitro and infection in animal models or human subjects have provided novel insights into these networks and provided new targets for therapy and biomarker development...
2017: Advances in Virus Research
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