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https://www.readbyqxmd.com/read/28633702/impact-of-isoniazid-preventive-therapy-on-the-evaluation-of-long-term-effectiveness-of-infant-mva85a-vaccination
#1
E W Bunyasi, A K K Luabeya, M Tameris, H Geldenhuys, H Mulenga, B S Landry, T J Scriba, B-M Schmidt, W A Hanekom, H Mahomed, H McShane, M Hatherill
SETTING: South Africa. OBJECTIVE: To evaluate the long-term effectiveness of infant modified vaccinia Ankara virus-expressing antigen 85A (MVA85A) vaccination against tuberculosis (TB). DESIGN: We analysed data from a double-blind randomised placebo-controlled Phase 2b MVA85A infant TB vaccine trial (2009-2012), with extended post-trial follow-up (2012-2014). Isoniazid preventive therapy (IPT) was provided by public health services according to national guidelines...
July 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28633701/management-of-child-mdr-tb-contacts-across-countries-in-the-who-european-region-a-survey-of-current-practice
#2
A Turkova, M Tebruegge, F Brinkmann, M Tsolia, F Mouchet, B Kampmann, J A Seddon
The World Health Organization European Region has one of the highest rates of multidrug-resistant tuberculosis (MDR-TB) in the world, resulting in many vulnerable children being exposed each year. Evidence for preventive therapy following MDR-TB exposure is limited and current guidance is conflicting. An internet-based survey was performed to determine clinical practice in this region. Seventy-two clinicians from 25 countries participated. Practices related to screening and decision-making were highly variable...
July 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28633697/capacity-strengthening-through-pre-migration-tuberculosis-screening-programmes-irhwg-experiences
#3
P Douglas, D L Posey, D Zenner, J Robson, I Abubakar, G Giovinazzo
Effective tuberculosis (TB) prevention and care for migrants requires population health-based approaches that treat the relationship between migration and health as a progressive, interactive process influenced by many variables and addressed as far upstream in the process as possible. By including capacity building in source countries, pre-migration medical screening has the potential to become an integral component of public health promotion, as well as infection and disease prevention, in migrant-receiving nations, while simultaneously increasing capabilities in countries of origin...
July 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28633696/cross-border-collaboration-for-improved-tuberculosis-prevention-and-care-policies-tools-and-experiences
#4
M Dara, G Sulis, R Centis, L D'Ambrosio, G de Vries, P Douglas, D Garcia, N Jansen, E Zuroweste, G B Migliori
As tuberculosis (TB) spreads beyond borders with people movements, several interventions ensuring the continuity of care are essential, although difficult to put in place in the absence of well-defined agreements allowing data sharing and easy referral of patients to appropriate health facilities. This article first sets out general principles for cross-border collaboration and continuity of care. It then presents a series of case studies. Policies and practices on cross-border collaboration in selected low-incidence countries (Australia, Italy, Norway, The Netherlands, the United Kingdom and the United States) are described and critically appraised...
July 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28630203/bactericidal-and-sterilizing-activity-of-a-novel-regimen-with-bedaquiline-pretomanid-moxifloxacin-and-pyrazinamide-in-a-murine-model-of-tuberculosis
#5
Si-Yang Li, Rokeya Tasneen, Sandeep Tyagi, Heena Soni, Paul J Converse, Khisimuzi Mdluli, Eric L Nuermberger
New regimens based on two or more novel agents are sought to shorten or simplify treatment of tuberculosis (TB), including drug-resistant forms. Prior studies showed that the novel combinations of bedaquiline (BDQ) + pretomanid (PMD) + pyrazinamide (PZA) and of PMD + moxifloxacin (MXF) + PZA shorten the treatment duration necessary to prevent relapse by 2-3 and 1-2 months, respectively, compared with the current first-line regimen in a murine TB model. These 3-drug combinations are now being studied in clinical trials...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28626811/the-enrich-study-to-evaluate-the-effectiveness-of-a-combination-intervention-package-to-improve-isoniazid-preventive-therapy-initiation-adherence-and-completion-among-people-living-with-hiv-in-ethiopia-rationale-and-design-of-a-mixed-methods-cluster-randomized
#6
Andrea A Howard, Yael Hirsch-Moverman, Suzue Saito, Tsigereda Gadisa, Amrita Daftary, Zenebe Melaku
BACKGROUND: Isoniazid preventive therapy (IPT) prevents tuberculosis among HIV-positive individuals, however implementation is suboptimal. Implementation science studies are needed to identify interventions to address this evidence-to-program gap. OBJECTIVE: The ENRICH Study is a mixed methods cluster randomized trial aimed at evaluating the effectiveness and acceptability of a combination intervention package (CIP) to improve IPT implementation in Ethiopia. DESIGN: Ten health centers were randomized to receive the CIP or standard of care...
June 2017: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/28617582/liquid-crystal-based-immunosensor-for-diagnosis-of-tuberculosis-in-clinical-specimens
#7
Hyeong Jin Kim, Jinseob Rim, Chang-Hyun Jang
Tuberculosis (TB) is a serious global health problem, although it is easily preventable and curable. The prevalence of TB is caused by a lack of simple, rapid, cheap, and effective TB diagnostic tests. In this study, we have established a novel liquid crystal (LC)-based immunosensor to diagnose TB in clinical specimens. The clinical serum samples were incubated on a TB antigen-immobilized substrate, and their optical LC responses were observed using a polarized light microscope. Specific binding of anti-TB antibodies to the TB antigen-immobilized surface only occurred in clinical specimens from TB patients, inducing the disruption of the orientation of LCs...
June 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28615077/service-utilization-and-cost-of-implementing-a-comprehensive-hiv-prevention-and-care-program-among-people-who-inject-drugs-in-delhi-india
#8
Mary Philip Sebastian, Aparajita Dasgupta, Lopamudra Ray Saraswati, Asha Singh, Vartika Sharma, Ira Madan, Waimar Tun, Julie Pulerwitz, Ibou Thior, Avina Sarna
BACKGROUND: WHO, UNODC, and UNAIDS recommend a comprehensive package for prevention, treatment, and care of HIV among people who inject drugs (PWID). We describe the uptake of services and the cost of implementing a comprehensive package for HIV prevention, treatment, and care services in Delhi, India. METHODS: A cohort of 3774 PWID were enrolled for a prospective HIV incidence study and provided the comprehensive package: HIV and hepatitis testing and counseling, hepatitis B (HB) vaccination, syndromic management of sexually transmitted infections, clean needles-syringes, condoms, abscess care, and education...
June 14, 2017: Harm Reduction Journal
https://www.readbyqxmd.com/read/28614446/-factors-associated-with-tb-hiv-coinfection-evidence-from-notification-data-in-the-state-of-amazonas-brazil-2001-2012
#9
Evela da Silva Magno, Valeria Saraceni, Alexandra Brito de Souza, Regma da Silva Magno, Maria das Graças Gomes Saraiva, Samira Bührer-Sékula
Tuberculosis (TB) in persons living with HIV (PLHIV) is the leading infectious cause of AIDS-related death. The aim of this study was to estimate the prevalence of TB/HIV coinfection, evaluate notification of the two diseases over time by probabilistic database linkage, and identify factors associated with AIDS and TB notifications. Prevalence of TB/HIV coinfection was 7.7%. The group of PLHIV with subsequent TB diagnosis was the most representative, despite available preventive measures. Underreporting of TB among AIDS cases was 35%, and 19...
June 12, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/28610784/molecular-investigation-of-active-binding-site-of-isoniazid-inh-and-insight-into-resistance-mechanism-of-s315t-mtkatg-in-mycobacterium-tuberculosis
#10
Gaurava Srivastava, Shubhandra Tripathi, Akhil Kumar, Ashok Sharma
Multi drug resistant tuberculosis is a major threat for mankind. Resistance against Isoniazid (INH), targeting MtKatG protein, is one of the most commonly occurring resistances in MDR TB strains. S315T-MtKatG mutation is widely reported for INH resistance. Despite having knowledge about the mechanism of INH, exact binding site of INH to MtKatG is still uncertain and proposed to have three presumable binding sites (site-1, site-2, and site-3). In the current study docking, molecular dynamics simulation, binding free energy estimation, principal component analysis and free energy landscape analysis were performed to get molecular level details of INH binding site on MtKatG, and to probe the effect of S315T mutation on INH binding...
July 2017: Tuberculosis
https://www.readbyqxmd.com/read/28606173/tuberculosis-caseload-in-children-with-severe-acute-malnutrition-related-with-high-hospital-based-mortality-in-lusaka-zambia
#11
Tendai Munthali, Chishala Chabala, Elson Chama, Raider Mugode, Nathan Kapata, Patrick Musonda, Charles Michelo
BACKGROUND: Tuberculosis and severe acute malnutrition (SAM) in children pose a major treatment and care challenge in high HIV burden countries in Africa. We investigated the prevalence of Tuberculosis notifications among hospitalised under-five children with severe acute malnutrition. A retrospective review of medical records for all children aged 0-59 months admitted to the University Teaching Hospital from 2009 to 2013 was performed. Descriptive statistics were employed to estimate TB caseload...
June 12, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28601524/rifampin-stability-and-solution-concentration-enhancement-through-amorphous-solid-dispersion-in-cellulose-%C3%AF-carboxyalkanoate-matrices
#12
Hale Çiğdem Arca, Laura I Mosquera-Giraldo, Junia M Pereira, Nammalwar Sriranganathan, Lynne S Taylor, Kevin J Edgar
Tuberculosis (TB) is a deadly infectious disease; approximately 2 billion people are currently latently infected with the causative agent Mycobacterium tuberculosis. Approximately 8 million new active cases and 2 million deaths due to TB are recorded annually(1). Rifampin (Rif) is a vital first line TB treatment drug. Its effectiveness is hampered by the high dose required (600 mg 1x/day) and by its moderate, variable bioavailability. These issues can be explained by Rif instability at gastric pH, limited solubility at neutral pH, polymorphism, and stimulation of its own metabolism...
June 7, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28598771/barriers-to-initiating-tuberculosis-treatment-in-sub-saharan-africa-a-systematic-review-focused-on-children-and-youth
#13
Brittney J Sullivan, B Emily Esmaili, Coleen K Cunningham
BACKGROUND: Tuberculosis (TB) is the deadliest infectious disease globally, with 10.4 million people infected and more than 1.8 million deaths in 2015. TB is a preventable, treatable, and curable disease, yet there are numerous barriers to initiating treatment. These barriers to treatment are exacerbated in low-resource settings and may be compounded by factors related to childhood. OBJECTIVE: Timely initiation of tuberculosis (TB) treatment is critical to reducing disease transmission and improving patient outcomes...
2017: Global Health Action
https://www.readbyqxmd.com/read/28597826/pathology-of-tuberculosis-how-the-pathology-of-human-tuberculosis-informs-and-directs-animal-models
#14
Randall J Basaraba, Robert L Hunter
Tuberculosis (TB) is a chronic inflammatory disease caused by the pathogenic bacterium Mycobacterium tuberculosis. A wide variety of host- and pathogen-associated variables influence the clinical manifestation of TB in different individuals within the human population. As a consequence, the characteristic granulomatous lesions that develop within the lung are heterogeneous in size and cellular composition. Due to the lack of appropriate tissues from human TB patients, a variety of animal models are used as surrogates to study the basic pathogenesis and to test experimental vaccines and new drug therapies...
June 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28595544/nanocarriers-for-the-treatment-of-tuberculosis
#15
Syed Sarim Imam, Sadaf Jamal Gilani, Abdul Hafeez, Mahfoozur Rahman
BACKGROUND: Nanotechnology is an emerging science with the potential to create new materials and strategies involving manipulation of matter at the nanometer scale. Colloidal drug delivery systems have been extensively investigated as drug carriers for the application of different anti tubercular drugs. METHODS: The different delivery systems like solid lipid nanoparticles and polymeric nanoparticles have been investigated for a long time to treat diseases. There are number of drawbacks in conventional TB dosage forms are the development of multiple drug resistance, resulting intolerable toxicity and high dose requirements...
April 27, 2017: Recent Patents on Anti-infective Drug Discovery
https://www.readbyqxmd.com/read/28588103/mycobacteriumtuberculosis-rv3615c-is-a-highly-immunodominant-antigen-and-specifically-inducespotent-th1-type-immune-responses-in-tuberculosis-pleurisy
#16
Jiangping Li, Juan Shen, Suihua Lao, Xiaomin Li, Jie Liu, Changyou Wu
T-cell responses have been demonstrated essential for preventing M.tb infection. The Th1-cytokines produced by T cells, such as INF-γ, IL-2 and TNF-α, not only limit the invasion of M.tb but also eliminate the pathogen at site of infection. BCG is known to induce Th1-type responses but the protection is inadequate. Identification of immunogenic components in addition to those expressed in BCG and induction of a broad spectrum of Th1-type responses provide options for generating sufficient adaptive immunity...
June 6, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28584959/preventing-tuberculosis-in-a-low-incidence-setting-evaluation-of-a-multi-lingual-online-educational-video-on-latent-tuberculosis
#17
Jie Gao, Victoria J Cook, Maureen Mayhew
Treating latent tuberculosis infection (LTBI) in those at risk is an important yet challenging cornerstone of TB elimination. We evaluated a culturally-tailored, multi-lingual, 4.5-min, health promotional video on LTBI. Mixed methods study assessed use of the video with web-analytics, acceptability of content through interviews and survey questions, and compared knowledge scores in viewers and non-viewers using a survey. The video was viewed 6999 times in six languages over 1 year. Of 1598 survey respondents, 193 viewers had a mean knowledge score of 59%, compared to 38% in non-viewers...
June 5, 2017: Journal of Immigrant and Minority Health
https://www.readbyqxmd.com/read/28579606/isoniazid-prophylaxis-for-latent-tuberculosis-infections-in-liver-transplant-recipients-in-a-tuberculosis-endemic-area
#18
Hyung Hwan Moon, So Yeon Park, Jong Man Kim, Jae Berm Park, Choon Hyuck David Kwon, Kyong Ran Peck, Sung-Joo Kim, Suk-Koo Lee, Jae-Won Joh
BACKGROUND Isoniazid (INH) prophylaxis (Px) has good efficacy for preventing tuberculosis (TB) in the general population. However, its use for the treatment of latent TB infections (LTBI) in liver transplant (LT) recipients is challenging because little is known about INH-induced hepatotoxicity in graft recipients. We evaluated the efficacy and safety of INH Px in LT recipients. MATERIAL AND METHODS From March 2008 to December 2012, we retrospectively reviewed data on 277 patients who received LT at a single center...
June 5, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28578621/drug-resistant-tuberculosis-in-zhejiang-province-china-an-updated-analysis-of-time-trends-1999-2013
#19
Beibei Wu, Le Zhang, Zhengwei Liu, Haibo He, Aizhen Pan, Fei Wang, Mingwu Zhang, Bin Chen, Zuhong Lu, Songhua Chen, Xiaomeng Wang
BACKGROUND: Multidrug-resistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB) hinder the progress of TB control. OBJECTIVE: To track the trend of drug-resistant tuberculosis (DR-TB) prevalence in Zhejiang Province from 1999 to 2013, and identify risk factors of resistance to second-line drugs among MDR-TB patients. DESIGN: Four DR-TB surveys had been done in Zhejiang Province in 1999, 2004, 2008 and 2013 through questionnaires, in which demographic and epidemiological items were included...
2017: Global Health Action
https://www.readbyqxmd.com/read/28574018/genetic-diversity-drug-sensitivity-profiles-of-mycobacterium-tuberculosis-isolates-from-two-slums-of-jaipur-city-rajasthan-india
#20
Bharti Malhotra, Deepti Dashora, Vipin Kumar, Sumit Goyal, Bhavana Sharma, Madhu Kumar, Kailash Narayan Gupta, Vishnu Dutt Sharma, D S Chauhan, Kiran Katoch, Vishwa Mohan Katoch
BACKGROUND & OBJECTIVES: Slums are considered as hotspots of tuberculosis (TB). The study of genetic diversity and drug susceptibility profile of Mycobacterium tuberculosis (MTB) will help understand the transmission dynamics and can be used for better prevention and control of the disease. The aim of this study was to determine the drug susceptibility profiles and genetic diversity using the random amplified polymorphic DNA (RAPD) and mycobacterial interspersed repetitive units-variable number of tandem repeats (MIRU VNTR) of MTB isolates from sputum samples of pulmonary TB patients residing in the two slums of Jaipur city in Rajasthan, India...
January 2017: Indian Journal of Medical Research
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