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https://www.readbyqxmd.com/read/28922578/identification-of-a-tetanus-toxin-specific-epitope-in-single-amino-acid-resolution
#1
Andrea Palermo, Laura K Weber, Simone Rentschler, Awale Isse, Martyna Sedlmayr, Karin Herbster, Volker List, Jürgen Hubbuch, Felix F Löffler, Alexander Nesterov-Müller, Frank Breitling
Vaccinations are among the most potent tools to fight infectious diseases. However, cross-reactions are an ongoing problem and there is an urgent need to fully understand the mechanisms of the immune response. For the development of a methodological workflow, the linear epitopes in the immune response to the tetanus toxin is investigated in sera of 19 vaccinated Europeans applying epitope mapping with peptide arrays. The most prominent epitope, appearing in nine different sera (923 IHLVNNESSEVIVHK937 ), is investigated in a substitution analysis to identify the amino acids that are crucial for the binding of the corresponding antibody species - the antibody fingerprint...
September 18, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28922318/vaccination-during-pregnancy-first-line-of-defense-for-expecting-mothers-and-vulnerable-young-infants
#2
Casidhe-Nicole Bethancourt, Tiffany L Wang, Joseph A Bocchini
PURPOSE OF REVIEW: Maternal vaccination is a well-tolerated and effective way to protect mothers, their developing fetuses, and their young infants from infectious diseases. Although influenza vaccine and diphtheria, tetanus, and acellular pertussis (Tdap) vaccine are recommended for all pregnant women, uptake rates in the United States remain low. This review will focus on the rationale, scientific evidence, and perceptions of vaccination during pregnancy. RECENT FINDINGS: Recent studies show that administration of influenza and Tdap vaccines during pregnancy is well tolerated and provides protection to the pregnant woman, her fetus, and young infant...
September 16, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28918950/power-transfer-to-a-human-during-an-electric-eel-s-shocking-leap
#3
Kenneth C Catania
Electric eels have been the subject of investigation and curiosity for centuries [1]. They use high voltage to track [2] and control [3] prey, as well as to exhaust prey by causing involuntary fatigue through remote activation of prey muscles [4]. But their most astonishing behavior is the leaping attack, during which eels emerge from the water to directly electrify a threat [5, 6]. This unique defense has reportedly been used against both horses [7] and humans [8]. Yet the dynamics of the circuit that develops when a living animal is contacted and the electrical power transmitted to the target have not been directly investigated...
September 8, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28918379/infanrix-hexa-and-sudden-death-a-review-of-the-periodic-safety-update-reports-submitted-to-the-european-medicines-agency
#4
Jacob Puliyel, C Sathyamala
There have been a number of spontaneous reports of sudden unexpected death soon after the administration of Infanrix hexa (combined diphtheria, tetanus, acellular pertussis, hepatitis B, inactivated poliomyelitis and Haemophilus influenza type B vaccine). The manufacturer, GlaxoSmithKline (GSK), submits confidential periodic safety update reports (PSURs) on Infanrix hexa to the European Medicines Agency (EMA). The latest is the PSUR 19. Each PSUR contains an analysis of observed/expected sudden deaths, which shows that the number of observed deaths soon after immunisation is lower than that expected by chance...
September 5, 2017: Indian Journal of Medical Ethics
https://www.readbyqxmd.com/read/28918300/dynamical-properties-of-lfps-from-mice-with-unilateral-injection-of-tent
#5
Eleonora Vannini, Matteo Caleo, Santi Chillemi, Angelo Di Garbo
Local field potential (LFP) recordings were performed from the visual cortex (V1) of a focal epilepsy mouse model. Epilepsy was induced by a unilateral injection of the synaptic blocker tetanus neurotoxin (TeNT). LFP signals were simultaneously recorded from V1 of both hemispheres of each animal under acute and chronic conditions (i.e. during and after the period of TeNT action). All data were analysed by using nonlinear time series methods. Suitable values of the lag time and embedding dimension for phase space reconstruction were estimated by employing well-known methods...
September 13, 2017: Bio Systems
https://www.readbyqxmd.com/read/28916245/tetanus-diphtheria-and-acellular-pertussis-vaccination-during-pregnancy-and-reduced-risk-of-infant-acute-respiratory-infections
#6
Zeina G Khodr, Anna T Bukowinski, Gia R Gumbs, Ava Marie S Conlin
BACKGROUND: To protect infants from pertussis infection, the Advisory Committee on Immunization Practices (ACIP) recommends women receive the tetanus toxoid, reduced diphtheria toxoid, acellular pertussis (Tdap) vaccine between 27 and 36weeks of pregnancy. Here, we assessed the association between timing of maternal Tdap vaccination during pregnancy and acute respiratory infection (ARI) in infants <2months of age. METHODS: This retrospective cohort study included 99,434 infants born to active duty military women in the Department of Defense Birth and Infant Health Registry from 2006 through 2013...
September 12, 2017: Vaccine
https://www.readbyqxmd.com/read/28915813/the-relationship-between-burden-of-childhood-disease-and-foreign-aid-for-child-health
#7
J Clay Bavinger, Paul Wise, Eran Bendavid
BACKGROUND: We sought to examine the relationship between child specific health aid (CHA) and burden of disease. Based on existing evidence, we hypothesized that foreign aid for child health would not be proportional to burden of disease. METHODS: In order to examine CHA and burden of disease, we obtained estimates of these parameters from established sources. Estimates of disability adjusted life years (DALYs) in children (0-5 years) were obtained from the World Health Organization for 2000 and 2012...
September 15, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28900351/an-overview-of-different-health-indicators-used-in-the-european-health-systems
#8
REVIEW
M Gaeta, F Campanella, L Capasso, G M Schifino, L Gentile, G Banfi, G Pelissero, C Ricci
INTRODUCTION: In the European Union three different health systems could be defined according to service delivery, financing, and economic policies: Beveridge, Bismarck and Mixed system. Although health systems are hardly to compare, various organizations are developing methods assessing performance. In the present work the performance of the three systems were evaluated using European Community Health Indicators according to Organization for Economic Cooperation and Development. METHODS: The study has been conducted among the 28 states of the European Union using the following indicators: Standardized death rate for diseases of the circulatory system, standardized death rate of malignant neoplasms, road traffic accidents with injury, life expectancy at birth, incidence of Human Immunodeficiency Virus (HIV), infant deaths, pure alcohol consumption, infants vaccinated against Diphtheria Tetanus Pertussis (DTP), public and total expenditure on health over the period 2001-2010...
June 2017: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/28898319/-tetanus-a-current-disease-in-pediatric-population-case-report
#9
María Del Pilar Cejudo-García de Alba, Jaime Guadalupe Valle-Leal, Jesús Gabriel Sánchez Beltrán, Amado de Jesús Francisco Vázquez-Amparano
INTRODUCTION: Tetanus is an acute disease caused by a toxin produced by Clostridium tetanii. The disease can affect people of any age, and the fatality rate is high. Thanks to immunization the number of cases of the disease has decreased, although they are still present in isolation in countries with social and economic backwardness. OBJECTIVE: To describe a case of a pediatric patient with generalized tetanus to reinforce the relevance of prophylaxis and early detection...
2017: Revista Chilena de Pediatría
https://www.readbyqxmd.com/read/28894781/diagnostic-accuracy-of-quick-stick-for-identifying-traumatic-patients-in-need-of-tetanus-prophylaxis-a-cross-sectional-study
#10
Iraj Golikhatir, Seyed Hossein Montazer, Nabiollah Bagheri, Fatemeh Jahanian, Farzad Bozorgi, Seyed Mohammad Hosseininejad, Hamed Amini Ahidashti
INTRODUCTION: Based on the existing studies, measuring serum level of immunoglobulin for making decisions regarding prescription of tetanus prophylaxis seems logical and cost effective. Therefore, the present study was done with the aim of evaluating the diagnostic accuracy of tetanus quick stick (TQS) in comparison with ELISA method in this regard. METHODS: The present diagnostic accuracy study was carried out on trauma patients presenting to emergency department, who were in need of receiving tetanus prophylaxis due to dirty wounds or injuries...
2017: Emergency (Tehran, Iran)
https://www.readbyqxmd.com/read/28893741/prevention-and-assessment-of-infectious-diseases-among-children-and-adult-migrants-arriving-to-the-european-union-european-economic-association-a-protocol-for-a-suite-of-systematic-reviews-for-public-health-and-health-systems
#11
Kevin Pottie, Alain D Mayhew, Rachael L Morton, Christina Greenaway, Elie A Akl, Prinon Rahman, Dominik Zenner, Manish Pareek, Peter Tugwell, Vivian Welch, Joerg Meerpohl, Pablo Alonso-Coello, Charles Hui, Beverley-Ann Biggs, Ana Requena-Méndez, Eric Agbata, Teymur Noori, Holger J Schünemann
INTRODUCTION: The European Centre for Disease Prevention and Control is developing evidence-based guidance for voluntary screening, treatment and vaccine prevention of infectious diseases for newly arriving migrants to the European Union/European Economic Area. The objective of this systematic review protocol is to guide the identification, appraisal and synthesis of the best available evidence on prevention and assessment of the following priority infectious diseases: tuberculosis, HIV, hepatitis B, hepatitis C, measles, mumps, rubella, diphtheria, tetanus, pertussis, poliomyelitis (polio), Haemophilus influenza disease, strongyloidiasis and schistosomiasis...
September 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28892576/pregnancy-modulates-the-allergen-induced-cytokine-production-differently-in-allergic-and-non-allergic-women
#12
Martina Sandberg Abelius, Malin Jedenfalk, Jan Ernerudh, Camilla Janefjord, Göran Berg, Leif Matthiesen, Maria C Jenmalm
BACKGROUND: The immunological environment during pregnancy may differ between allergic and non-allergic women. This study investigates the effect of maternal allergy on the allergen-induced cytokine and chemokine levels and if pregnancy modulates these immune responses differently in allergic and non-allergic women. METHODS: The birch-, cat-, phytohemagglutinin- and tetanus toxoid-induced interferon-γ (IFN-γ), interleukin-4 (IL)-4, IL-5, IL-10, IL-13, the T-helper 1 (Th1)-associated chemokine CXCL10 and the Th2-associated chemokine CCL17 levels were quantified in 20 women with allergic symptoms (sensitised, n=13) and 36 women without allergic symptoms (non-sensitised, n=30) at gestational weeks 10-12, 15-16, 25, 35 and 2 and 12 months postpartum...
September 11, 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/28892076/single-cell-deep-phenotyping-of-igg-secreting-cells-for-high-resolution-immune-monitoring
#13
Klaus Eyer, Raphaël C L Doineau, Carlos E Castrillon, Luis Briseño-Roa, Vera Menrath, Guillaume Mottet, Patrick England, Alexei Godina, Elodie Brient-Litzler, Clément Nizak, Allan Jensen, Andrew D Griffiths, Jérôme Bibette, Pierre Bruhns, Jean Baudry
Studies of the dynamics of the antibody-mediated immune response have been hampered by the absence of quantitative, high-throughput systems to analyze individual antibody-secreting cells. Here we describe a simple microfluidic system, DropMap, in which single cells are compartmentalized in tens of thousands of 40-pL droplets and analyzed in two-dimensional droplet arrays using a fluorescence relocation-based immunoassay. Using DropMap, we characterized antibody-secreting cells in mice immunized with tetanus toxoid (TT) over a 7-week protocol, simultaneously analyzing the secretion rate and affinity of IgG from over 0...
September 11, 2017: Nature Biotechnology
https://www.readbyqxmd.com/read/28891721/the-regions-on-the-light-chain-of-botulinum-neurotoxin-type-a-recognized-by-t-cells-from-toxin-treated-cervical-dystonia-patients-the-complete-human-t-cell-recognition-map-of-the-toxin-molecule
#14
Minako Oshima, Philip Deitiker, Joseph Jankovic, M Zouhair Atassi
We have recently mapped the in vitro proliferative responses of T cells from botulinum neurotoxin type A (BoNT/A)-treated cervical dystonia (CD) patients with overlapping peptides encompassing BoNT/A heavy chain (residues 449-1296). In the present study, we determined the recognition profiles, by peripheral blood lymphocytes (PBL) from the same set of patients, of BoNT/A light (L) chain (residues 1-453) by using 32 synthetic overlapping peptides that encompassed the entire L chain. Profiles of the T-cell responses (expressed in stimulation index, SI; Z score based on transformed SI) to the peptides varied among the patients...
September 11, 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28891541/inequity-in-access-to-childhood-immunization-in-enugu-urban-southeast-nigeria
#15
B S Uzochukwu, C C Okeke, E Envuladu, C Mbachu, C Okwuosa, O E Onwujekwe
BACKGROUND: The Nigerian National Programme on Immunization aims at increasing the immunization coverage of children under 1 year of age. However, there is still a gap between the national immunization targets and the immunization coverage rates, and data are rarely disaggregated according to socioeconomic status. As a result, there is a dearth of information about the coverage of subgroups, especially at the local level. This study determined the socioeconomic differentials in immunization coverage for children under 5 years and under 1 year in Enugu urban, Southeast Nigeria...
August 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28886949/low-antigen-dose-formulated-in-caf09-adjuvant-favours-a-cytotoxic-t-cell-response-following-intraperitoneal-immunization-in-g%C3%A3-ttingen-minipigs
#16
Nana H Overgaard, Thomas M Frøsig, Jeanne T Jakobsen, Søren Buus, Mads H Andersen, Gregers Jungersen
The relationship between the antigen dose and the quality of an immune response generated upon immunization is poorly understood. However, findings show that the immune system is indeed influenced by the antigen dose; hence underlining the importance of correctly determining which dose to use in order to generate a certain type of immune response. To investigate this area further, we used Göttingen minipigs asan animal model especially due to the similar body size and high degree of immunome similarity between humans and pigs...
September 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28886485/development-of-an-epitope-based-vaccine-inhibiting-immune-cells-rolling-and-migration-against-atherosclerosis-using-in-silico-approaches
#17
Mehdi Tourani, Ahmad Karkhah, Ali Najafi
Atherosclerosis is a chronic inflammatory disease characterized by formation of pro-oxidative lipids in large and medium-sized vessels. Over the years, many treatments and drugs have entered the market to improve atherosclerosis and autoantigen-mediated active immunization is currently considered as a beneficial method. Therefore, this study was conducted to design a novel epitope-based vaccine against atherosclerosis employing CD99, CD81 and CD99L2 antigens. In this way, structural vaccinology approaches were used to design a novel multi-epitope vaccine against atherosclerosis...
September 1, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28885461/vaccinations-and-malaria-chemoprophylaxis-of-adolescents-traveling-from-greece-to-international-destinations-a-nine-year-prospective-study
#18
Helena C Maltezou, Androula Pavli, Kalliopi Theodoridou, Panos Katerelos, Athina Spilioti, Anastasia Tedoma, Ioanna Lymperi, Maria Theodoridou
BACKGROUND: There are few publications focusing on vaccination and malaria chemoprophylaxis in adolescent travelers. We assessed pre-travel vaccinations and malaria chemoprophylaxis of adolescents 12-18 old traveling from Greece to international destinations. METHODS: We prospectively studied 239 adolescents 12-18 years old during 2008-2016. A standard questionnaire was used to collect data. RESULTS: Adolescents sought pre-travel services at a mean of 24...
September 6, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28882444/tetanus-toxoid-carrier-protein-induced-t-helper-cell-responses-upon-vaccination-of-middle-aged-adults
#19
Marieke van der Heiden, Aafke Duizendstra, Guy A M Berbers, Annemieke M H Boots, Anne-Marie Buisman
INTRODUCTION: Vaccines frequently induce suboptimal immune responses in the elderly, due to immunological ageing. Timely vaccination may be a strategy to overcome this problem, which classifies middle-aged adults asan interesting target group for future vaccine interventions. However, the immunological fitness of the middle-aged population is ill-defined. It is currently unknown whether effective T-cell help towards B-cells is initiated by conjugate-carrier vaccines at middle-age. AIM: We characterized systemic Tetanus Toxoid (TT) specific T-helper cell responses in the circulation of middle-aged adults (50-65years of age, n=31) having received the MenACWY-TT vaccination...
September 4, 2017: Vaccine
https://www.readbyqxmd.com/read/28879524/uptake-of-clostridial-neurotoxins-into-cells-and-dissemination
#20
Chloé Connan, Michel R Popoff
Clostridial neurotoxins, botulinum neurotoxins (BoNT) and tetanus neurotoxin (TeNT), are potent toxins, which are responsible for severe neurological diseases in man and animals. BoNTs induce a flaccid paralysis (botulism) by inhibiting acetylcholine release at the neuromuscular junctions, whereas TeNT causes a spastic paralysis (tetanus) by blocking the neurotransmitter release (glycine, GABA) in inhibitory interneurons within the central nervous system. Clostridial neurotoxins recognize specific receptor(s) on the target neuronal cells and enter via a receptor-mediated endocytosis...
September 7, 2017: Current Topics in Microbiology and Immunology
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