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https://www.readbyqxmd.com/read/29155819/determinants-of-site-of-tuberculosis-disease-an-analysis-of-european-surveillance-data-from-2003-to-2014
#1
Giovanni Sotgiu, Dennis Falzon, Vahur Hollo, Csaba Ködmön, Nicolas Lefebvre, Andrei Dadu, Marieke van der Werf
BACKGROUND: We explored host-related factors associated with the site of tuberculosis (TB) disease using variables routinely collected by the 31 EU/EEA countries for national surveillance. METHODS: Logistic regression models were fitted to case-based surveillance data reported to the European Centre for Disease Prevention and Control for TB cases notified from 2003 to 2014. Missing data on HIV infection and on susceptibility to isoniazid and rifampicin for many patients precluded the inclusion of these variables in the analysis...
2017: PloS One
https://www.readbyqxmd.com/read/29151578/th1-cytokines-true-functional-signatures-for-protective-immunity-against-tb
#2
REVIEW
Gucheng Zeng, Guoliang Zhang, Xinchun Chen
The lack of an effective preventative vaccine against tuberculosis (TB) presents a great challenge to TB control. Since it takes an extremely long time to accurately determine the protective efficacy of TB vaccines, there is a great need to identify the surrogate signatures of protection to facilitate vaccine development. Unfortunately, antigen-specific Th1 cytokines that are currently used to evaluate the protective efficacy of the TB vaccine, do not align with the protection and failure of TB vaccine candidates in clinical trials...
November 20, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/29150737/risk-of-active-tuberculosis-in-patients-with-inflammatory-arthritis-receiving-tnf-inhibitors-a-look-beyond-the-baseline-tuberculosis-screening-protocol
#3
Alina Soare, Ana Maria Gheorghiu, Victoria Aramă, Dragoș Bumbăcea, Rucsandra Dobrotă, Raida Oneaţă, Simona Pintilie, Mihaela Milicescu, Ioan Ancuţa, Andrei Martin, Mariana Sasu, Claudia Ciofu, Liviu Macovei, Victor Stoica, Mihai Bojincă, Carina Mihai
Tuberculosis (TB) is a major concern in patients receiving TNF inhibitors (TNFi). This study aimed to assess the incidence of active TB and the efficacy of TB prevention measures used over the years, and to determine risk factors for developing TB, in a single-centre cohort of patients with rheumatoid arthritis (RA), psoriatic arthritis (PsA) and ankylosing spondylitis (AS) receiving TNFi. Data of all patients in whom treatment with TNFi was initiated in our rheumatology clinic until December 1st 2014 have been retrospectively analysed...
November 17, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/29148853/multi-stage-subunit-vaccines-against-mycobacterium-tuberculosis-an-alternative-to-the-bcg-vaccine-or-a-bcg-prime-boost
#4
Farzad Khademi, Mohammad Derakhshan, Arshid Yousefi-Avarvand, Mohsen Tafaghodi, Saman Soleimanpour
More than two billion people are latently infected with Mycobacterium tuberculosis. Most tuberculosis (TB)-subunit vaccines currently in various stages of clinical trials are designed for prevention of active TB, but not to prevent reactivation of latent TB-infection. Thus, there is an urgent need for an effective multi-stage vaccine based on early-expressed and latently-expressed antigens that prevents both acute and latent infections. Areas covered: Here, we reviewed the published pre-clinical and clinical studies of multi-stage subunit vaccines against TB, and the protective capacities of the vaccines were compared with BCG, either alone or in combination with different vaccine delivery systems/adjuvants...
November 17, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/29143466/tuberculosis-serosurveillance-and-management-practices-of-captive-african-elephants-loxodonta-africana-in-the-kavango-zambezi-transfrontier-conservation-area
#5
L E Rosen, T G Hanyire, J Dawson, C M Foggin, A L Michel, K P Huyvaert, M A Miller, F J Olea-Popelka
Transfrontier conservation areas represent an international effort to encourage conservation and sustainable development. Their success faces a number of challenges, including disease management in wildlife, livestock and humans. Tuberculosis (TB) affects humans and a multitude of non-human animal species and is of particular concern in sub-Saharan Africa. The Kavango-Zambezi Transfrontier Conservation Area encompasses five countries, including Zimbabwe, and is home to the largest contiguous population of free-ranging elephants in Africa...
November 16, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29141341/-spatial-temporal-distribution-of-smear-positive-pulmonary-tuberculosis-in-liangshan-yi-autonomous-prefecture-sichuan-province-2011-2016
#6
T Li, C H Yang, J G He, Y K Li, Y Xiao, J Li, D X Wang, C Chen, J L Wu
Objective: To analyze the spatial and temporal distribution of smear positive pulmonary tuberculosis (PTB) in Liangshan Yi autonomous prefecture in Sichuan province from 2011 to 2016. Methods: The registration data of PTB in 618 townships of Liangshan from 2011 to 2016 were collected from "Tuberculosis Management Information System of National Disease Prevention and Control Information System" . Software ArcGIS 10.2 was used to establish the geographic information database and realize the visualization of the analysis results...
November 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/29140996/childhood-tuberculosis-is-associated-with-decreased-abundance-of-t-cell-gene-transcripts-and-impaired-t-cell-function
#7
Cheryl Hemingway, Maurice Berk, Suzanne T Anderson, Victoria J Wright, Shea Hamilton, Hariklia Eleftherohorinou, Myrsini Kaforou, Greg M Goldgof, Katy Hickman, Beate Kampmann, Johan Schoeman, Brian Eley, David Beatty, Sandra Pienaar, Mark P Nicol, Michael J Griffiths, Simon J Waddell, Sandra M Newton, Lachlan J Coin, David A Relman, Giovanni Montana, Michael Levin
The WHO estimates around a million children contract tuberculosis (TB) annually with over 80 000 deaths from dissemination of infection outside of the lungs. The insidious onset and association with skin test anergy suggests failure of the immune system to both recognise and respond to infection. To understand the immune mechanisms, we studied genome-wide whole blood RNA expression in children with TB meningitis (TBM). Findings were validated in a second cohort of children with TBM and pulmonary TB (PTB), and functional T-cell responses studied in a third cohort of children with TBM, other extrapulmonary TB (EPTB) and PTB...
2017: PloS One
https://www.readbyqxmd.com/read/29139018/vaccination-against-hydatidosis-molecular-cloning-and-optimal-expression-of-the-eg95nc-recombinant-antigen-in-escherichia-coli
#8
M Jazouli, M Lightowlers, C G Gauci, K Tadlaoui, A Belmlih, M M Ennaji, M Elharrak
Cystic echinococcosis (CE) is a widely distributed zoonosis that is highly endemic in the Mediterranean basin. The disease represents a serious public health threat and causes economic losses. The parasite life-cycle involves dogs and ruminants as definitive and intermediate hosts; humans are accidently infected, causing serious clinical issues. Vaccination of ruminants and dog treatments represent the most efficient measures to prevent parasite transmission. The recombinant protein vaccine, EG95, has been used successfully in sheep vaccine trials against CE in several countries...
November 14, 2017: Protein Journal
https://www.readbyqxmd.com/read/29137710/loop-mediated-isothermal-amplification-using-self-avoiding-molecular-recognition-systems-and-antarctic-thermal-sensitive-uracil-dna-glycosylase-for-detection-of-nucleic-acid-with-prevention-of-carryover-contamination
#9
Yi Wang, Dongxin Liu, Jianping Deng, Yan Wang, Jianguo Xu, Changyun Ye
Loop-mediated isothermal amplification (LAMP) is the most popular technique to amplify nucleic acid sequence without the use of temperature cycling. However, LAMP is often confounded by false-positive results, arising from interactions between (hetero-dimer) or within (self-dimerization) primers, off-target hybrids and carryover contaminants. Here, we devised a new LAMP technique that is self-avoiding molecular recognition system (SAMRS) components and antarctic thermal sensitive uracil-DNA-glycosylase (AUDG) enzyme-assisted, termed AUDG-SAMRS-LAMP...
December 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29136652/tuberculosis-transmission-in-the-indigenous-peoples-of-the-canadian-prairies
#10
Smit Patel, Catherine Paulsen, Courtney Heffernan, Duncan Saunders, Meenu Sharma, Malcolm King, Vernon Hoeppner, Pamela Orr, Dennis Kunimoto, Dick Menzies, Sara Christianson, Joyce Wolfe, Jody Boffa, Kathleen McMullin, Carmen Lopez-Hille, Ambikaipakan Senthilselvan, Richard Long
SETTING: The prairie provinces of Canada. OBJECTIVE: To characterize tuberculosis (TB) transmission among the Indigenous and non-Indigenous Canadian-born peoples of the prairie provinces of Canada. DESIGN: A prospective epidemiologic study of consecutively diagnosed adult (age ≥ 14 years) Canadian-born culture-positive pulmonary TB cases on the prairies, hereafter termed "potential transmitters," and the transmission events generated by them...
2017: PloS One
https://www.readbyqxmd.com/read/29126100/using-reports-of-latent-tuberculosis-infection-among-young-children-to-identify-tuberculosis-transmission-in-new-york-city-2006-2012
#11
Jennifer Sanderson Slutsker, Lisa Trieu, Aldo Crossa, Shama Desai Ahuja
Young children with latent tuberculosis infection (LTBI) indicate recent TB transmission. We reviewed surveillance reports of children with LTBI to assess whether more follow-up is needed to prevent TB among this high-risk population. All children <5 years reported to the New York City Department of Health from 2006-2012 were abstracted from the TB Registry to identify those with LTBI. Potential source cases were identified; defined as any infectious TB case diagnosed in the 2 years before a child was reported and whose residence was within <0...
November 8, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29120360/elemental-ingredients-in-the-macrophage-cocktail-role-of-zip8-in-host-response-to-mycobacterium-tuberculosis
#12
REVIEW
Charlie J Pyle, Abul K Azad, Audrey C Papp, Wolfgang Sadee, Daren L Knoell, Larry S Schlesinger
Tuberculosis (TB) is a global epidemic caused by the infection of human macrophages with the world's most deadly single bacterial pathogen, Mycobacterium tuberculosis (M.tb). M.tb resides in a phagosomal niche within macrophages, where trace element concentrations impact the immune response, bacterial metal metabolism, and bacterial survival. The manipulation of micronutrients is a critical mechanism of host defense against infection. In particular, the human zinc transporter Zrt-/Irt-like protein 8 (ZIP8), one of 14 ZIP family members, is important in the flux of divalent cations, including zinc, into the cytoplasm of macrophages...
November 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29118425/the-study-on-the-association-between-beijing-genotype-family-and-drug-susceptibility-phenotypes-of-mycobacterium-tuberculosis-in-beijing
#13
Yi Liu, Xiaoying Jiang, Wensheng Li, Xuxia Zhang, Wei Wang, Chuanyou Li
The predominant prevalent Mycobacterium tuberculosis (M. tb) lineage was the Beijing genotype family in Beijing. There has been no systematic study on the association between drug resistance and Beijing genotype. Here we collected 268 M. tb strains, analyzed the background information and the bacteriological characteristics. The mean age of the cases was 40.12 years; male patients were almost three times than female patients. After genotyping analyzation, 81.7% (219/268) strains were categorized as Beijing genotype; no significant difference was observed between Beijing and non-Beijing genotype in gender, age and treatment history...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29114781/self-administered-versus-directly-observed-once-weekly-isoniazid-and-rifapentine-treatment-of-latent-tuberculosis-infection-a-randomized-trial
#14
Robert Belknap, David Holland, Pei-Jean Feng, Joan-Pau Millet, Joan A Caylà, Neil A Martinson, Alicia Wright, Michael P Chen, Ruth N Moro, Nigel A Scott, Bert Arevalo, José M Miró, Margarita E Villarino, Marc Weiner, Andrey S Borisov
Background: Expanding latent tuberculosis treatment is important to decrease active disease globally. Once-weekly isoniazid and rifapentine for 12 doses is effective but limited by requiring direct observation. Objective: To compare treatment completion and safety of once-weekly isoniazid and rifapentine by self-administration versus direct observation. Design: An open-label, phase 4 randomized clinical trial designed as a noninferiority study with a 15% margin...
November 7, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/29112693/comparison-of-two-cash-transfer-strategies-to-prevent-catastrophic-costs-for-poor-tuberculosis-affected-households-in-low-and-middle-income-countries-an-economic-modelling-study
#15
COMPARATIVE STUDY
William E Rudgard, Carlton A Evans, Sedona Sweeney, Tom Wingfield, Knut Lönnroth, Draurio Barreira, Delia Boccia
BACKGROUND: Illness-related costs for patients with tuberculosis (TB) ≥20% of pre-illness annual household income predict adverse treatment outcomes and have been termed "catastrophic." Social protection initiatives, including cash transfers, are endorsed to help prevent catastrophic costs. With this aim, cash transfers may either be provided to defray TB-related costs of households with a confirmed TB diagnosis (termed a "TB-specific" approach); or to increase income of households with high TB risk to strengthen their economic resilience (termed a "TB-sensitive" approach)...
November 2017: PLoS Medicine
https://www.readbyqxmd.com/read/29106984/evaluation-of-profile-and-functionality-of-memory-t-cells-in-pulmonary-tuberculosis
#16
Marcela M Tonaco, Jôsimar D Moreira, Fernanda F C Nunes, Cristina M G Loures, Larissa R Souza, Janaina M Martins, Henrique R Silva, Arthur Henrique R Porto, Vicente Paulo C P Toledo, Silvana S Miranda, Tânia Mara P D Guimarães
The cells T CD4+ T and CD8+ can be subdivided into phenotypes naïve, T of central memory, T of effector memory and effector, according to the expression of surface molecules CD45RO and CD27. The T lymphocytes are cells of long life with capacity of rapid expansion and function, after a new antigenic exposure. In tuberculosis, it was found that specific memory T cells are present, however, gaps remain about the role of such cells in the disease immunology. In this study, the phenotypic profile was analyzed and characterized the functionality of CD4+ T lymphocytes and CD8+ T cells of memory and effector, in response to specific stimuli in vitro, in patients with active pulmonary TB, compared to individuals with latent infection with Mycobacterium tuberculosis the ones treated with pulmonary TB...
December 2017: Immunology Letters
https://www.readbyqxmd.com/read/29099000/enhancing-the-role-of-private-practitioners-in-tuberculosis-prevention-and-care-activities-in-india
#17
REVIEW
Tanu Anand, Ranjith Babu, Anil G Jacob, Karuna Sagili, Sarabjit S Chadha
India accounts for the highest number of incident tuberculosis (TB) cases globally. Hence, to impact the TB incidence world over, there is an urgent need to address and accelerate TB control activities in the country. Nearly, half of the TB patients first seek TB care in private sector. However, the participation of private practitioners (PPs) has been patchy in TB prevention and care and distrust exists between public and private sector. PPs usually have varied diagnostic and treatment practices that are inadequate and amplify the risk of drug resistance...
November 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/29094039/host-directed-therapeutic-strategies-for-tuberculosis
#18
REVIEW
Afsal Kolloli, Selvakumar Subbian
Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb), remains a leading cause of morbidity and mortality in humans worldwide. Currently, the standard treatment for TB involves multiple antibiotics administered for at least 6 months. Although multiple antibiotics therapy is necessary to prevent the development of drug resistance, the prolonged duration of treatment, combined with toxicity of drugs, contributes to patient non-compliance that can leads to the development of drug-resistant Mtb (MDR and XDR) strains...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29091137/correlation-between-the-bactec-mgit-960-culture-system-with-genotype-mtbdrplus-and-tb-sprint-in-multidrug-resistant-mycobacterium-tuberculosis-clinical-isolates-from-brazil
#19
Nayanne Gama Teixeira Dantas, Phillip Noel Suffys, Wânia da Silva Carvalho, Harrison Magdinier Gomes, Isabela Neves de Almeida, Lida Jouca de Assis Figueiredo, Alan Douglas Gonçalves, Michel Kireopori Gomgnimbou, Guislaine Refregier, Christophe Sola, Silvana Spíndola de Miranda
BACKGROUND: The accurate detection of multidrug-resistant tuberculosis (MDR-TB) is critical for the application of appropriate patient treatment and prevention of transmission of drug-resistant Mycobacterium tuberculosis isolates. The goal of this study was to evaluate the correlation between phenotypic and molecular techniques for drug-resistant tuberculosis diagnostics. Molecular techniques used were the line probe assay genotype MTBDRplus and the recently described tuberculosis-spoligo-rifampin-isoniazid typing (TB-SPRINT) bead-based assay...
November 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/29089584/acvr2b-fc-counteracts-chemotherapy-induced-loss-of-muscle-and-bone-mass
#20
Rafael Barreto, Yukiko Kitase, Tsutomu Matsumoto, Fabrizio Pin, Kyra C Colston, Katherine E Couch, Thomas M O'Connell, Marion E Couch, Lynda F Bonewald, Andrea Bonetto
Chemotherapy promotes the development of cachexia, a debilitating condition characterized by muscle and fat loss. ACVR2B/Fc, an inhibitor of the Activin Receptor 2B signaling, has been shown to preserve muscle mass and prolong survival in tumor hosts, and to increase bone mass in models of osteogenesis imperfecta and muscular dystrophy. We compared the effects of ACVR2B/Fc on muscle and bone mass in mice exposed to Folfiri. In addition to impairing muscle mass and function, Folfiri had severe negative effects on bone, as shown by reduced trabecular bone volume fraction (BV/TV), thickness (Tb...
October 31, 2017: Scientific Reports
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