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https://www.readbyqxmd.com/read/28731539/interleukin-17a-gene-polymorphism-rs2275913-is-associated-with-osteitis-after-the-bacillus-calmette-gu%C3%A3-rin-vaccination
#1
Milla Liehu-Martiskainen, Matti Korppi, Johanna Teräsjärvi, Juho Vuononvirta, Heini Huhtala, Kirsi Nuolivirta, Liisa Kröger, Ville Peltola, Laura Pöyhönen, Qiushui He
AIM: Interleukin-17 (IL-17) appears to promote the host's defense against mycobacterial infections. This study evaluated the association between IL17A gene polymorphism and the risk of Bacillus Calmette-Guérin (BCG) osteitis after newborn vaccination and between IL17A gene polymorphism and IL-17A concentrations in serum. METHODS: IL17A rs2275913 gene polymorphisms and serum IL-17A concentrations were studied in 132 adults aged 21-49 years from across Finland, who had BCG osteitis in infancy after a newborn BCG vaccination...
July 21, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28728855/tissue-plasminogen-activator-tpa-signal-sequence-enhances-immunogenicity-of-mva-based-vaccine-against-tuberculosis
#2
Yiming Kou, Yongqing Xu, Zhilei Zhao, Jie Liu, Yang Wu, Qingrui You, Linli Wang, Feng Gao, Linjun Cai, Chunlai Jiang
Tuberculosis (TB) remains a serious health problem worldwide, and the only available vaccine, bacillus Calmette-Guérin (BCG), has shown highly variable efficacy in adults against TB. New vaccines are urgently needed, and the modified vaccinia virus Ankara (MVA)-based vaccine has emerged as one of the most promising candidates based on many preclinical and early clinical studies over the past few years. However, the maximum tolerable dose and strength of induced immune responses have limited the protective effect of MVA-based prophylactic vaccines...
July 17, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28719821/bcg-old-workhorse-new-skills
#3
REVIEW
M Gengenbacher, N E Nieuwenhuizen, She Kaufmann
Bacille Calmette-Guérin (BCG), the only tuberculosis (TB) vaccine in clinical practice, has limitations in efficacy, immunogenicity and safety. Much current TB vaccine research focuses on engineering live mycobacteria to interfere with phagosome biology and host intracellular pathways including apoptosis and autophagy, with candidates such as BCG Δzmp1, BCG ΔureC::hly, BCG::ESX-1(Mmar), Mtb ΔphoP ΔfadD26, Mtb ΔRD1 ΔpanCD and M. smegmatis Δesx-3::esx-3(Mtb) in the development pipeline. Correlates of protection in preclinical studies include increased central memory CD4(+) T cells and recruitment of antigen-specific T cells to the lungs, with mucosal vaccination found to be superior to parenteral vaccination...
July 15, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28719272/mycobacterial-arthritis-at-19-months-after-a-bacille-calmette-gu%C3%A3-rin-vaccination
#4
Chien-Yu Lin, Ye-Ming Lee, Jeng-Jung Chen
No abstract text is available yet for this article.
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28714174/immunological-properties-and-protective-efficacy-of-a-single-mycobacterial-antigen-displayed-on-polyhydroxybutyrate-beads
#5
Patricia Rubio-Reyes, Natalie A Parlane, Bryce M Buddle, D Neil Wedlock, Bernd H A Rehm
In 2015, there were an estimated 10.4 million new tuberculosis (TB) cases and 1.4 million deaths worldwide. Bacille Calmette-Guérin (BCG), an attenuated strain of Mycobacterium bovis, is the vaccine available against TB, but it is insufficient for global TB control. This study evaluated the immunogenicity of the Mycobacterium tuberculosis antigen Rv1626 in mice while assessing the effect of co-delivering either Cpe30 (immunostimulatory peptide), CS.T3378-395 (promiscuous T helper epitope) or flagellin (TLR5 agonist) or a combination of all three immunostimulatory agents...
July 17, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28712162/bcg-vaccine-an-innovation-for-diabetes-treatment-in-pakistan
#6
EDITORIAL
Zohair Lilani, Afrinah Ahmed, Rabbia Tazeem, Erum Naeem
No abstract text is available yet for this article.
January 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28711483/a-multistage-subunit-vaccine-effectively-protects-mice-against-primary-progressive-tuberculosis-latency-and-reactivation
#7
Jilei Ma, Xindong Teng, Xiaochun Wang, Xionglin Fan, Yaqi Wu, Maopeng Tian, Zijie Zhou, Longmeng Li
Adult tuberculosis (TB) is the main cause of TB epidemic and death. The infection results mainly by endogenous reactivation of latent TB infection and secondarily transmitted by exogenous infection. There is no vaccine for adult TB. To this end, we first chose antigens from a potential antigenic reservoir. The antigens strongly recognized T cells from latent and active TB infections that responded to antigens expressed by Mycobacterium tuberculosis cultured under different metabolic states. Fusions of single-stage polyprotein CTT3H, two-stage polyprotein A1D4, and multistage CMFO were constructed...
July 8, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28710848/breaking-transmission-with-vaccines-the-case-of-tuberculosis
#8
Jesus Gonzalo-Asensio, Nacho Aguilo, Dessislava Marinova, Carlos Martin
Members of the Mycobacterium tuberculosis complex (MTBC) have evolved causing tuberculosis (TB) in different mammalian hosts. MTBC ecotypes have adapted to diverse animal species, with M. bovis being the most common cause of TB in livestock. Cattle-to-human transmission of M. bovis through ingestion of raw milk was common before introduction of the pasteurization process. TB in humans is mainly caused by M. tuberculosis. This bacterium is considered a genetically clonal pathogen that has coevolved with humans due to its ability to manipulate and subvert the immune response...
July 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28706226/reactogenicity-to-major-tuberculosis-antigens-absent-in-bcg-is-linked-to-improved-protection-against-mycobacterium-tuberculosis
#9
Nacho Aguilo, Jesus Gonzalo-Asensio, Samuel Alvarez-Arguedas, Dessislava Marinova, Ana Belen Gomez, Santiago Uranga, Ralf Spallek, Mahavir Singh, Regine Audran, François Spertini, Carlos Martin
MTBVAC is a live-attenuated Mycobacterium tuberculosis vaccine, currently under clinical development, that contains the major antigens ESAT6 and CFP10. These antigens are absent from the current tuberculosis vaccine, BCG. Here we compare the protection induced by BCG and MTBVAC in several mouse strains that naturally express different MHC haplotypes differentially recognizing ESAT6 and CFP10. MTBVAC induces improved protection in C3H mice, the only of the three tested strains reactive to both ESAT6 and CFP10...
July 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/28705514/bacillus-calmette-gu%C3%A3-rin-bcg-vaccination-patterns-in-the-province-of-qu%C3%A3-bec-canada-1956-1974
#10
Marie-Claude Rousseau, Florence Conus, Khady Kâ, Mariam El-Zein, Marie-Élise Parent, Dick Menzies
BACKGROUND: In the province of Québec, Canada, the Bacillus Calmette-Guérin (BCG) vaccine was offered to newborns and school-age children from the 1950s to mid-1970s in an organized tuberculosis prevention program. OBJECTIVE: We aimed to describe the annual rates of skin test administration, proportion of skin tests that were positive, and rates of BCG vaccination from 1956 to 1974 according to age, sex, and administrative region. METHODS: For rates, numerators were extracted from the Québec BCG Vaccination Registry whereas population denominators were obtained from the Canadian Census and governmental publications...
July 10, 2017: Vaccine
https://www.readbyqxmd.com/read/28701467/the-cross-species-mycobacterial-growth-inhibition-assay-mgia-project-2010-2014
#11
Michael J Brennan, Rachel Tanner, Sheldon Morris, Thomas J Scriba, Jacqueline M Achkar, Andrea Zelmer, David Hokey, Angelo Izzo, Sally Sharpe, Ann Williams, Adam Penn-Nicholson, Mzwandile Erasmus, Elena Stylianou, Daniel F Hoft, Helen McShane, Helen A Fletcher
The development of a functional biomarker assay in the tuberculosis (TB) field would be widely recognized as a major advance in efforts to efficiently develop and test novel TB vaccine candidates. We present preliminary studies using mycobacterial growth inhibition assays (MGIAs) to detect a BCG vaccine response across species, and extend this work to determine if a standardized MGIA can be applied in characterizing new generation TB vaccines. The comparative MGIA studies reviewed here aimed to evaluate robustness, reproducibility, and ability to reflect in vivo responses...
July 12, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28698665/antigens-rv0310c-and-rv1255c-are-promising-novel-biomarkers-for-the-diagnosis-of-mycobacterium-tuberculosis-infection
#12
Liulin Luo, Lin Zhu, Jun Yue, Jianping Liu, Guoyuan Liu, Xuelian Zhang, Honghai Wang, Ying Xu
This study aimed to identify novel immunogenic epitopes from Mycobacterium tuberculosis (MTB) that could be used in tuberculosis (TB) diagnostics. To determine the diagnostic potential of mycobacterial antigens in serodiagnosis of TB, 256 patients were enrolled in a study and divided into two groups: 126 smear-positive pulmonary TB patients (SPPT) and 130 smear-negative pulmonary TB patients (SNPT); 152 bacillus Calmette-Guerin (BCG)-vaccinated healthy people were used as a control. Murine results showed that antigens Rv0310c-E from RD 8 and Rv1255c-E from RD 10 were strongly immunogenic to Th1 cells and induced a great humoral response...
July 12, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28689652/field-evaluation-of-candidate-baits-for-oral-delivery-of-bcg-vaccine-to-european-badgers-meles-meles
#13
Kate Palphramand, Richard Delahay, Andrew Robertson, Sonya Gowtage, Gareth A Williams, Robbie A McDonald, Mark Chambers, Stephen P Carter
The control of tuberculosis (TB) in cattle in the UK and Ireland is compromised by transmission of Mycobacterium bovis to cattle from the European badger (Meles meles), which acts as a wildlife reservoir. Vaccination of badgers could potentially contribute to TB control but the only licensed vaccine is injectable BadgerBCG which requires the live-capture of badgers. Current research is aimed at developing an oral TB vaccine (where vaccine is contained within bait) that is intended to be more cost-effective to deploy over large areas...
July 6, 2017: Vaccine
https://www.readbyqxmd.com/read/28689112/selection-of-a-new-mycobacterium-tuberculosis-h37rv-aptamer-and-its-application-in-the-construction-of-a-swcnt-aptamer-au-ide-mspqc-h37rv-sensor
#14
XiaoQing Zhang, Ye Feng, QiongQiong Yao, Fengjiao He
A rapid and accurate detection method for Mycobacterium tuberculosis (M. tuberculosis) is essential for effectively treating tuberculosis. However, current detection methods cannot meet these clinical requirements because the methods are slow or of low specificity. Consequently, a new highly specific ssDNA aptamer against M. tuberculosis reference strain H37Rv was selected by using the whole-cell systematic evolution of ligands by exponential enrichment technique. The selected aptamer was used to construct a fast and highly specific H37Rv sensor...
June 20, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28686691/use-of-fecal-volatile-organic-compound-analysis-to-discriminate-between-non-vaccinated-and-bcg-vaccinated-cattle-prior-to-and-after-mycobacterium-bovis-challenge
#15
Christine K Ellis, Somchai Rice, Devin Maurer, Randal Stahl, W Ray Waters, Mitchell V Palmer, Pauline Nol, Jack C Rhyan, Kurt C VerCauteren, Jacek A Koziel
Bovine tuberculosis is a zoonotic disease of global public health concern. Development of diagnostic tools to improve test accuracy and efficiency in domestic livestock and enable surveillance of wildlife reservoirs would improve disease management and eradication efforts. Use of volatile organic compound analysis in breath and fecal samples is being developed and optimized as a means to detect disease in humans and animals. In this study we demonstrate that VOCs present in fecal samples can be used to discriminate between non-vaccinated and BCG-vaccinated cattle prior to and after Mycobacterium bovis challenge...
2017: PloS One
https://www.readbyqxmd.com/read/28686604/boosting-efferocytosis-in-alveolar-space-using-bcg-vaccine-to-protect-host-against-influenza-pneumonia
#16
Sanjay Mukherjee, Renuka Subramaniam, Han Chen, Anthony Smith, Shiva Keshava, Homayoun Shams
Efferocytosis by alveolar phagocytes (APs) is pivotal in maintenance of lung homeostasis. Increased efferocytosis by APs results in protection against lethal acute lung injury due to pulmonary infections whereas defective efferocytosis by APs results in chronic lung inflammation. In this report, we show that pulmonary delivery of Bacillus Calmette-Guerin (BCG) significantly enhances efferocytosis by APs. Increased efferocytosis by APs maintains lung homeostasis and protects mice against lethal influenza pneumonia...
2017: PloS One
https://www.readbyqxmd.com/read/28685796/tuberculosis-cost-in-tunisia
#17
Mohamed Hsairi, Mehdi Ben Braham, Dhikrayet Gamara, Rachid Fourati, Faouzi Abid, Fatma Tritar, Mohamed Ridha Charfi
BACKGROUND: Tuberculosis (TB) infects one third of the world population. Its economic impact is important, affecting the global economy in the World. OBJECTIVE: To determine the economic costs related to tuberculosis in Tunisia. METHODS: Calculations were made for the reference year 2013; we covered all cost components of the disease, which are related to program management, BCG vaccination, health workers training, social mobilization, screening, chemoprophylaxis, and tuberculosis care...
October 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/28683781/determinants-of-complete-immunization-among-senegalese-children-aged-12-23%C3%A2-months-evidence-from-the-demographic-and-health-survey
#18
Mouhamed Abdou Salam Mbengue, Moussa Sarr, Adama Faye, Ousseynou Badiane, Fatou Bintou Niang Camara, Souleymane Mboup, Tandakha Ndiaye Dieye
BACKGROUND: The expanded Programme on Immunization (EPI) is one of the most cost-effective interventions to reduce childhood mortality and morbidity. However, determinants of childhood immunization have not been well studied in Senegal. Thus, the aim of our study is to assess routine immunization uptake and factors associated with full immunization status among Senegalese children aged 12-23 months. METHODS: We used the 2010-2011 Senegalese Demographic and Health Survey data...
July 6, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28678885/assessment-of-bcg-and-inactivated-mycobacterium-bovis-vaccines-in-an-experimental-tuberculosis-infection-model-in-sheep
#19
Ana Balseiro, Raúl Altuzarra, Enric Vidal, Xavier Moll, Yvonne Espada, Iker A Sevilla, Mariano Domingo, Joseba M Garrido, Ramón A Juste, Miguel Prieto, Bernat Pérez de Val
BACKGROUND/AIMS: Animal tuberculosis (TB) is a complex animal health problem that causes disruption to trade and significant economic losses. TB involves a multi-host system where sheep, traditionally considered a rare host of this infection, have been recently included. The aims of this study were to develop an experimental TB infection model in sheep with a Mycobacterium caprae field strain isolated from a tuberculous diseased ewe, and to use this to evaluate the safety and efficacy of two vaccines against TB in sheep, the live-attenuated M...
2017: PloS One
https://www.readbyqxmd.com/read/28671074/evaluation-of-the-mycobacterium-tuberculosis-so2-vaccine-using-a-natural-tuberculosis-infection-model-in-goats
#20
J Bezos, C Casal, J Álvarez, A Roy, B Romero, A Rodríguez-Bertos, C Bárcena, A Díez, R Juste, C Gortázar, E Puentes, N Aguiló, C Martín, L de Juan, L Domínguez
The development of new vaccines against animal tuberculosis (TB) is a priority for improving the control and eradication of this disease, particularly in those species not subjected to compulsory eradication programmes. In this study, the protection conferred by the Mycobacterium tuberculosis SO2 experimental vaccine was evaluated using a natural infection model in goats. Twenty-six goats were distributed in three groups: (1) 10 goats served as a control group; (2) six goats were subcutaneously vaccinated with BCG; and (3) 10 goats were subcutaneously vaccinated with SO2...
May 2017: Veterinary Journal
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