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https://www.readbyqxmd.com/read/29351672/high-treatment-success-rate-among-multidrug-resistant-tuberculosis-patients-in-myanmar-2012-2014-a-retrospective-cohort-study
#1
Myat K Thu, Ajay M V Kumar, Kyaw T Soe, Saw Saw, Saw Thein, Zaw Mynit, Htet M W Maung, Si T Aung
Background: Since 2011, Myanmar has adopted domiciliary care for multidrug-resistant tuberculosis (MDR-TB) patients and implemented several patient-support measures such as community-based directly observed treatment, nutritional support and financial incentives for patients and providers. We assessed treatment outcomes among MDR-TB patients registered for treatment in the Yangon and Mandalay Regions of Myanmar during 2012-2014 and factors associated with unfavourable treatment outcomes...
January 17, 2018: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29348586/analogues-of-disulfides-from-allium-stipitatum-demonstrate-potent-anti-tubercular-activities-through-drug-efflux-pump-and-biofilm-inhibition
#2
Cynthia A Danquah, Eleftheria Kakagianni, Proma Khondkar, Arundhati Maitra, Mukhlesur Rahman, Dimitrios Evangelopoulos, Timothy D McHugh, Paul Stapleton, John Malkinson, Sanjib Bhakta, Simon Gibbons
Disulfides from Allium stipitatum, commonly known as Persian shallot, were previously reported to possess antibacterial properties. Analogues of these compounds, produced by S-methylthiolation of appropriate thiols using S-methyl methanethiosulfonate, exhibited antimicrobial activity, with one compound inhibiting the growth of Mycobacterium tuberculosis at 17 µM (4 mg L-1) and other compounds inhibiting Escherichia coli and multi-drug-resistant (MDR) Staphylococcus aureus at concentrations ranging between 32-138 µM (8-32 mg L-1)...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29340492/evaluation-of-the-impact-that-the-changes-in-tuberculosis-treatment-implemented-in-brazil-in-2009-have-had-on-disease-control-in-the-country
#3
Marcelo Fouad Rabahi, José Laerte Rodrigues da Silva Júnior, Marcus Barreto Conde
OBJECTIVE: To analyze the impact that the 2009 changes in tuberculosis treatment in Brazil had on the rates of cure, tuberculosis recurrence, mortality, treatment abandonment, and multidrug-resistant tuberculosis (MDR-TB). METHODS: An ordinary least squares regression model was used in order to perform an interrupted time series analysis of secondary data collected from the Brazilian Tuberculosis Case Registry Database for the period between January of 2003 and December of 2014...
November 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/29337135/defining-bedaquiline-susceptibility-resistance-cross-resistance-and-associated-genetic-determinants-a-retrospective-cohort-study
#4
Nazir A Ismail, Shaheed V Omar, Lavania Joseph, Netricia Govender, Linsay Blows, Farzana Ismail, Hendrik Koornhof, Andries W Dreyer, Koné Kaniga, Norbert Ndjeka
BACKGROUND: Bedaquiline (BDQ) is a novel agent approved for use in combination treatment of multi-drug resistant tuberculosis (MDR-TB). We sought to determine BDQ epidemiological cut-off values (ECVs), define and assess interpretive criteria against putative resistance associated variants (RAVs), microbiological outcomes and cross resistance with clofazimine (CFZ). METHODS: A retrospective cohort study was conducted. Minimal inhibitory concentrations (MIC) to BDQ were determined using 7H9 broth microdilution (BMD) and MGIT960...
January 9, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29336677/molecular-screening-versus-phenotypic-susceptibility-testing-of-multidrug-resistant-mycobacterium-tuberculosis-isolates-for-streptomycin-and-ethambutol
#5
Noura M Al-Mutairi, Suhail Ahmad, Eiman Mokaddas
Proper management of multidrug-resistant tuberculosis (MDR-TB) requires accurate drug susceptibility testing (DST) of Mycobacterium tuberculosis isolates to other (ethambutol [EMB], pyrazinamide, and streptomycin [SM]) first-line drugs. This study compared the performance of Mycobacterium Growth Indicator Tube (MGIT) 960 system for DST of MDR-TB isolates with polymerase chain reaction (PCR) sequencing of embB, rpsL, and rrs genes for detecting resistance to EMB and SM. MDR-TB strains (n = 60) and 25 pansusceptible M...
January 16, 2018: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29332649/isoniazid-and-rifampicin-heteroresistant-mycobacterium-tuberculosis-isolated-from-tuberculous-meningitis-patients-in-india
#6
Renu Gupta, Rajeev Thakur, Suman Kushwaha, Nupur Jalan, Pumanshi Rawat, Piyush Gupta, Amitesh Aggarwal, Meena Gupta, Vikas Manchanda
BACKGROUND: Heteroresistant Mycobacterium tuberculosis (mixture of susceptible and resistant subpopulations) is thought to be a preliminary stage to full resistance and timely detection, initiation of correct treatment is vital for successful anti tubercular therapy. The aim of this study was to detect multi drug resistant (MDR) and heteroresistant M. tuberculosis with the associated gene mutations from patients of tuberculous meningitis. METHODS: A total of 197 M...
January 2018: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/29332647/social-support-a-key-factor-for-adherence-to-multidrug-resistant-tuberculosis-treatment
#7
R D Deshmukh, D J Dhande, K S Sachdeva, A N Sreenivas, A M V Kumar, M Parmar
BACKGROUND: Multidrug-resistant tuberculosis (MDR-TB) is emerging as a major public health problem globally. Treatment success rates in MDR-TB across the globe are not encouraging as completing MDR-TB treatment successfully is challenging due to high proportion of lost to follow up. METHODS: Using qualitative methods and grounded theory approach, in-depth interviews were conducted with MDR-TB patients and treatment providers. The social cognitive framework was explored as a way to guide understanding of the factors affecting treatment adherence among MDR-TB patients...
January 2018: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/29326013/a-cluster-of-multidrug-resistant-mycobacterium-tuberculosis-among-patients-arriving-in-europe-from-the-horn-of-africa-a-molecular-epidemiological-study
#8
Timothy M Walker, Matthias Merker, Astrid M Knoblauch, Peter Helbling, Otto D Schoch, Marieke J van der Werf, Katharina Kranzer, Lena Fiebig, Stefan Kröger, Walter Haas, Harald Hoffmann, Alexander Indra, Adrian Egli, Daniela M Cirillo, Jérôme Robert, Thomas R Rogers, Ramona Groenheit, Anne T Mengshoel, Vanessa Mathys, Marjo Haanperä, Dick van Soolingen, Stefan Niemann, Erik C Böttger, Peter M Keller
BACKGROUND: The risk of tuberculosis outbreaks among people fleeing hardship for refuge in Europe is heightened. We describe the cross-border European response to an outbreak of multidrug-resistant tuberculosis among patients from the Horn of Africa and Sudan. METHODS: On April 29 and May 30, 2016, the Swiss and German National Mycobacterial Reference Laboratories independently triggered an outbreak investigation after four patients were diagnosed with multidrug-resistant tuberculosis...
January 8, 2018: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/29325589/catastrophic-total-costs-in-tuberculosis-affected-households-and-their-determinants-since-indonesia-s-implementation-of-universal-health-coverage
#9
Ahmad Fuady, Tanja A J Houweling, Muchtaruddin Mansyur, Jan Hendrik Richardus
BACKGROUND: As well as imposing an economic burden on affected households, the high costs related to tuberculosis (TB) can create access and adherence barriers. This highlights the particular urgency of achieving one of the End TB Strategy's targets: that no TB-affected households have to face catastrophic costs by 2020. In Indonesia, as elsewhere, there is also an emerging need to provide social protection by implementing universal health coverage (UHC). We therefore assessed the incidence of catastrophic total costs due to TB, and their determinants since the implementation of UHC...
January 12, 2018: Infectious Diseases of Poverty
https://www.readbyqxmd.com/read/29319042/multidrug-resistant-tuberculosis-rifampicin-resistant-tuberculosis-principles-of-management
#10
Rajendra Prasad, Nikhil Gupta, Amitabh Banka
Multidrug-resistant tuberculosis (MDR-TB)/rifampicin-resistant TB (RR-TB) is human-made problem and emerging due to poor management of TB and is a threat to control of TB. Early suspicion and diagnosis are important. Culture and drug susceptibility testing are gold standards, but newer molecular methods help in rapid diagnosis. Once diagnosed, prompt treatment should be started, preferably under direct observation. Treatment can be standardized or individualized. Conventional regimen takes up to 24 months but recently shorter regimen of up to 12 months was introduced in specific subset of MDR-TB/RR-TB patients...
January 2018: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/29319026/sequelae-of-pulmonary-multidrug-resistant-tuberculosis-at-the-completion-of-treatment
#11
Rupak Singla, Manashree Mallick, Parul Mrigpuri, Neeta Singla, Amitesh Gupta
BACKGROUND: Treatment of multidrug-resistant (MDR-TB) mainly focuses on bacteriological cure. However, only limited studies have evaluated the sequelae left after the completion of treatment among MDR-TB patients. OBJECTIVE: To assess the persistent symptoms, radiological sequelae, pulmonary function impairment and quality of life at the completion of treatment among MDR-TB patients. METHODS: Forty six MDR-TB patients were enrolled, who completed two years of treatment under programmatic management of Drug Resistant tuberculosis at a tertiary referral institute in Delhi, India...
January 2018: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/29311073/the-validation-of-cycloserine-efficacy-in-treatment-of-multidrug-resistant-and-extensively-drug-resistant-tuberculosis-in-beijing-china
#12
Xia Yu, Xiling Zeng, Wenhui Shi, Yanjie Hu, Wenjuan Nie, Naihui Chu, Hairong Huang
Cycloserine is recommended by the World Health Organization as a second line drug to treat multidrug-resistant tuberculosis(MDR TB), however its efficacy has never been sufficiently evaluated. To gain some insights into the value of cycloserine (Cs) for MDR TB treatment, in vitro bacteriostatic effect and patient validations were performed prospectively.The in vitro activity of Cs against 104 wild-type M. tuberculosis strains was determined, and serum Cs concentration was measured for 73 MDR TB patients 2 hours after administration...
January 8, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29310751/multi-clonal-evolution-of-multi-drug-resistant-extensively-drug-resistant-mycobacterium-tuberculosis-in-a-high-prevalence-setting-of-papua-new-guinea-for-over-three-decades
#13
Arnold Bainomugisa, Evelyn Lavu, Stenard Hiashiri, Suman Majumdar, Alice Honjepari, Rendi Moke, Paison Dakulala, Grant A Hill-Cawthorne, Sushil Pandey, Ben J Marais, Chris Coulter, Lachlan Coin
An outbreak of multi-drug resistant (MDR) tuberculosis (TB) has been reported on Daru Island, Papua New Guinea. Mycobacterium tuberculosis strains driving this outbreak and the temporal accrual of drug resistance mutations have not been described. Whole genome sequencing of 100 of 165 clinical isolates referred from Daru General Hospital to the Supranational reference laboratory, Brisbane, during 2012-2015 revealed that 95 belonged to a single modern Beijing sub-lineage strain. Molecular dating suggested acquisition of streptomycin and isoniazid resistance in the 1960s, with potentially enhanced virulence mediated by an mycP1 mutation...
January 4, 2018: Microbial Genomics
https://www.readbyqxmd.com/read/29305543/genotyping-multi-drug-resistant-m-tuberculosis-from-primary-sputum-and-decontaminated-sediment-with-an-integrated-microfluidic-amplification-microarray
#14
Yvonne Linger, Christopher Knickerbocker, David Sipes, Julia Golova, Molly Franke, Roger Calderon, Leonid Lecca, Nitu Thakore, Rebecca Holmberg, Peter Qu, Alexander Kukhtin, Megan B Murray, Christopher G Cooney, Darrell P Chandler
There is a growing awareness that molecular diagnostics for detect-to-treat applications will soon need a highly multiplexed mutation detection and identification capability. In this study, we converted an open-amplicon MDR-TB microarray hybridization test into an entirely closed-amplicon consumable (an amplification microarray) and evaluated its performance on matched sputum and sediment extracts. Reproducible genotyping (LoD) was achieved with ∼25 MTB genomes (100 fg of MTB DNA) per reaction; the estimated shelf life of the test was least 18 months when stored at 4°C...
January 5, 2018: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29305096/automated-real-time-detection-of-drug-resistant-mycobacterium-tuberculosis-on-a-lab-on-a-disc-by-recombinase-polymerase-amplification
#15
I L G Law, J F C Loo, H C Kwok, H Y Yeung, C C H Leung, M Hui, S Y Wu, H S Chan, Y W Kwan, H P Ho, S K Kong
With the emergence of multi- and extensive-drug (MDR/XDR) resistant Mycobacterium tuberculosis (M. tb), tuberculosis (TB) persists as one of the world's leading causes of death. Recently, isothermal DNA amplification methods received much attention due to their ease of translation onto portable point-of-care (POC) devices for TB diagnosis. In this study, we aimed to devise a simple yet robust detection method for M. tb. Amongst the numerous up-and-coming isothermal techniques, Recombinase Polymerase Amplification (RPA) was chosen for a real-time detection of TB with or without MDR...
January 2, 2018: Analytical Biochemistry
https://www.readbyqxmd.com/read/29303284/-current-approach-to-diagnostics-treatment-and-prevention-of-tuberculosis
#16
Martina Vašáková
Tuberculosis is world-wide spread infectious disease with persistant high incidence, mainly in the densely populated countries with low income. Czech Republic belongs to the countries with highly efficient control of tuberculosis and continuously decreasing incidence of the disease. High-risk population for tuberculosis in the Czech Republic are the homeless people, who together with migrants from the countries with high incidence of tuberculosis represent reservoir of infection for our population. Treatment of tuberculosis is long-term, combined and controlled...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29302148/association-of-risk-factors-and-drug-resistance-pattern-in-tuberculosis-patients-in-north-india
#17
Pallavi Sinha, G N Srivastava, Anamika Gupta, Shampa Anupurba
Context: India is one of the high tuberculosis (TB) burden countries in the world. Improper implementation in the guidelines for the management of TB and high rate of defaults on the part of the patients are most important risk factors for the development of multi-drug resistant TB. Aims: This study examines the drug resistance profile and the effect of demographic, clinical and behavioral risk factors on the prevalence of TB and multidrug resistance (MDR) in north India...
October 2017: Journal of Global Infectious Diseases
https://www.readbyqxmd.com/read/29297444/renal-function-of-mdr-tb-patients-treated-with-kanamycin-regimens-or-concomitantly-with-antiretroviral-agents
#18
E L Sagwa, N Ruswa, F Mavhunga, T Rennie, A Mengistu, T T Mekonen, H G M Leufkens, A K Mantel-Teeuwisse
SETTING: To compare renal insufficiency among multidrug-resistant tuberculosis (MDR-TB) patients treated with kanamycin (KM) based regimens and those treated concomitantly with tenofovir disoproxil fumarate (TDF) or other antiretroviral therapy (ART) regimens in Namibia. DESIGN: Retrospective review of the treatment records and laboratory tests of patients initiated on MDR-TB treatment (January-December 2014). The glomerular filtration rates (eGFR) estimated pre- and post-treatment were compared using the analysis of variance test...
December 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29297426/risk-factors-for-extensive-drug-resistance-in-multidrug-resistant-tuberculosis-cases-a-case-case-study
#19
L Guglielmetti, N Veziris, A Aubry, F Brossier, C Bernard, W Sougakoff, V Jarlier, J Robert
SETTINGS: Identification of extensively drug-resistant tuberculosis (XDR-TB) may be delayed because of the lack of availability of molecular testing for second-line drugs (SLDs). Early suspicion of XDR-TB is therefore necessary to avoid developing further drug resistance. OBJECTIVE: To identify the characteristics associated with XDR-TB among multidrug-resistant TB (MDR-TB) cases before the availability of second-line drug susceptibility testing (DST) results. METHODS: All MDR-TB cases with available second-line DST results recorded in France from 1998 to 2013 were classified as simple MDR-TB (no resistance to fluoroquinolones [FQs] or second-line injectable drugs [SLIDs]), pre-XDR-TB (resistance to FQs or SLIDs) and XDR-TB cases (resistance to both)...
January 1, 2018: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29297425/extensively-drug-resistant-tuberculosis-in-myanmar-burden-and-mutations-causing-second-line-drug-resistance
#20
P W Ei, W W Aung, W W Nyunt, T L Swe, M M Htwe, S M Win, S T Aung, C L Chang, H-Y Lee, J S Lee
SETTING: Two tuberculosis (TB) reference laboratories in Myanmar. OBJECTIVES: To determine the proportion of extensively drug-resistant TB (XDR-TB) cases among multidrug-resistant TB (MDR-TB) cases and the mutations that cause resistance to second-line drugs in Myanmar. DESIGN: This was a cross-sectional, retrospective study. Multidrug-resistant Mycobacterium tuberculosis isolates were collected during 2015-2016. Phenotypic drug susceptibility testing (DST) was performed and drug-resistant mutations identified by sequencing...
January 1, 2018: International Journal of Tuberculosis and Lung Disease
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