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https://www.readbyqxmd.com/read/28529205/effectiveness-and-safety-of-bedaquiline-containing-regimens-in-the-treatment-of-mdr-and-xdr-tb-a-multicentre-study
#1
Sergey E Borisov, Keertan Dheda, Martin Enwerem, Rodolfo Romero Leyet, Lia D'Ambrosio, Rosella Centis, Giovanni Sotgiu, Simon Tiberi, Jan-Willem Alffenaar, Andrey Maryandyshev, Evgeny Belilovski, Shashank Ganatra, Alena Skrahina, Onno Akkerman, Alena Aleksa, Rohit Amale, Janina Artsukevich, Judith Bruchfeld, Jose A Caminero, Isabel Carpena Martinez, Luigi Codecasa, Margareth Dalcolmo, Justin Denholm, Paul Douglas, Raquel Duarte, Aliasgar Esmail, Mohammed Fadul, Alexey Filippov, Lina Davies Forsman, Mina Gaga, Julia-Amaranta Garcia-Fuertes, José-María García-García, Gina Gualano, Jerker Jonsson, Heinke Kunst, Jillian S Lau, Barbara Lazaro Mastrapa, Jorge Lazaro Teran Troya, Selene Manga, Katerina Manika, Pablo González Montaner, Jai Mullerpattan, Suzette Oelofse, Martina Ortelli, Domingo Juan Palmero, Fabrizio Palmieri, Antonella Papalia, Apostolos Papavasileiou, Marie-Christine Payen, Emanuele Pontali, Carlos Robalo Cordeiro, Laura Saderi, Tsetan Dorji Sadutshang, Tatsiana Sanukevich, Varvara Solodovnikova, Antonio Spanevello, Sonam Topgyal, Federica Toscanini, Adrian R Tramontana, Zarir Farokh Udwadia, Pietro Viggiani, Veronica White, Alimuddin Zumla, Giovanni Battista Migliori
Large studies on bedaquiline used to treat multidrug-resistant (MDR-) and extensively drug-resistant tuberculosis (XDR-TB) are lacking. This study aimed to evaluate the safety and effectiveness of bedaquiline-containing regimens in a large, retrospective, observational study conducted in 25 centres and 15 countries in five continents.428 culture-confirmed MDR-TB cases were analysed (61.5% male; 22.1% HIV-positive, 45.6% XDR-TB). MDR-TB cases were admitted to hospital for a median (interquartile range (IQR)) 179 (92-280) days and exposed to bedaquiline for 168 (86-180) days...
May 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28527245/-description-of-mycobacterium-tuberculosis-mutations-conferring-resistance-to-rifampicin-and-isoniazid-detected-by-genotype%C3%A2-mtbdrplus-v-2-in-colombia
#2
Claudia Llerena, Raquel Medina
INTRODUCTION: The GenoType®MTBDRplusV.2 assay is a molecular technique endorsed by the World Health Organization and the Pan American Health Organization that allows for the identification of the Mycobacterium tuberculosis complex and the detection of mutations in the rpoβ gene for rifampicin resistance, and katG and inhA genes for isoniazid resistance. Due to the genetic variability in the circulating strains around the world, the national tuberculosis control programs should assess the performance of these new diagnostic technologies and their use under program conditions as rapid tests...
January 24, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28522948/evaluation-of-xpert-mtb-rif-assay-performance-in-the-diagnosis-of-abdominal-tuberculosis
#3
Suraj Kumar, Sawan Bopanna, Saurabh Kedia, Pratap Mouli, Rajan Dhingra, Rajesh Padhan, Mikashmi Kohli, Jigyasa Chaubey, Rohini Sharma, Prasenjit Das, S Dattagupta, Govind Makharia, S K Sharma, Vineet Ahuja
BACKGROUND/AIMS: The use of genetic probes for the diagnosis of pulmonary tuberculosis (TB) has been well described. However, the role of these assays in the diagnosis of intestinal tuberculosis is unclear. We therefore assessed the diagnostic utility of the Xpert Mycobacterium tuberculosis/rifampicin (MTB/RIF) assay, and estimated the prevalence of multidrug-resistant (MDR) TB in the Indian population. METHODS: Of 99 patients recruited, 37 had intestinal TB; two control groups comprised 43 with Crohn's disease (CD) and 19 with irritable bowel syndrome...
April 2017: Intestinal Research
https://www.readbyqxmd.com/read/28520704/adverse-events-associated-with-treatment-of-multidrug-resistant-tuberculosis-in-china-an-ambispective-cohort-study
#4
Yang Zhang, Shanshan Wu, Yinyin Xia, Ni Wang, Lin Zhou, Jing Wang, Renfei Fang, Feng Sun, Mingting Chen, Siyan Zhan
BACKGROUND Adverse events are under-appreciated negative consequences that are significant clinical problems for patients undergoing anti-MDR-TB treatment due to longer duration of treatment and more need for concurrent use of multiple second-line drugs. The aim of this study was to determine the incidence of adverse events and their impact on MDR-TB therapy and treatment outcome, and to identify possible drug-event pairs in China. MATERIAL AND METHODS An ambispective cohort study was conducted based on hospital medical records, which included a retrospective study that enrolled 751 MDR-TB patients receiving standardized regimen between May 2009 and July 2013, and a follow-up investigation of treatment outcome conducted in December 2016 in China...
May 18, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28513421/clinical-and-bacteriological-characteristics-associated-with-clustering-of-multidrug-resistant-tuberculosis
#5
J-Y J-Y Feng, L G Jarlsberg, K Salcedo, J Rose, M Janes, S-Y G Lin, D H Osmond, K C Jost, M K Soehnlen, J Flood, E A Graviss, E Desmond, P K Moonan, P Nahid, P C Hopewell, M Kato-Maeda
<h2>SETTING:</h2><p>The impact of the genetic characteristics of Mycobacterium tuberculosis on the clustering of multidrug-resistant tuberculosis (MDR-TB) has not been analyzed together with clinical and demographic characteristics.</p><h2>OBJECTIVE:</h2><p>To determine factors associated with genotypic clustering of MDR-TB in a community-basedstudy.</p><h2>DESIGN:</h2><p>We measured the proportion of clustered cases among MDR-TB patients and determined the impact of clinical and demographic characteristics and that of three M...
May 16, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28507467/preparation-and-characterization-of-beta-glucan-particles-containing-a-payload-of-nanoembedded-rifabutin-for-enhanced-targeted-delivery-to-macrophages
#6
Tarun K Upadhyay, Nida Fatima, Deepak Sharma, V Saravanakumar, Rolee Sharma
β-glucan particles (GP) are polymeric carbohydrates, mainly found as components of cell wall fungi, yeast, bacteria and also in cereals such as barley and oat, and have been recently shown to have application in macrophage-targeted drug delivery. The aim of this study was to prepare and characterize GP containing a large payload of Rifabutin (RB), an anti-tuberculosis drug effective against MDR-TB at lower MIC than Rifampicin. GP were prepared from yeast cells by acidic and alkaline extraction were either spray dried or lyophilized, prior to RB loading and alginate sealing...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28501582/molecular-detection-of-rifampicin-resistance-by-genexpert-%C3%A2-assay-among-treated-and-untreated-pulmonary-tuberculosis-patients-from-khyber-pakhtunkhwa-pakistan
#7
Hazir Rahman, Shakir Ullah Khan, Muhamamd Amjad Khan, Muhammad Qasim, Abdul Jabbar, Sadiq Noor, Zakir Khan, Taj Ali Khan, Mubbashir Hussain, Noor Muhammad, Nawab Ali
OBJECTIVES: Drug-resistant tuberculosis (TB) is an emerging health problem. Rifampicin (RIF) is the major first-line drug against TB. RIF resistance can be used as a marker for the detection of multidrug-resistant TB (MDR-TB). The purpose of this study was to determine the RIF resistance pattern of Mycobacterium tuberculosis complex isolates among treated and untreated patients in Khyber Pakhtunkhwa, Pakistan. METHODS: A total of 349 drug-treated and untreated TB-diagnosed patients were enrolled in this study...
May 10, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28500800/first-insight-into-the-fluoroquinolone-and-aminoglycoside-resistance-of-multidrug-resistant-mycobacterium-tuberculosis-in-saudi-arabia
#8
Bright Varghese, Sahal Al-Hajoj
AbstractIn Saudi Arabia, there were no nationwide screening studies conducted so far to determine the aminoglycoside and fluoroquinolone resistance among multidrug-resistant tuberculosis (MDR-TB) isolates. Therefore, as the first attempt in the country, a retrospective analysis has been conducted on a nationwide collection of 2,956 M. tuberculosis clinical isolates screened with phenotypic drug susceptibility testing to define MDR-TB. Enrolled MDR-TB isolates were subjected to second-line drug susceptibility testing, detection of mutations conferring resistance to aminoglycosides and fluoroquinolone, followed by 24-loci mycobacterial interspersed repetitive unit-variable number of tandem repeat typing and spoligotyping...
May 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28494250/recent-developments-of-coumarin-containing-derivatives-and-their-anti-tubercular-activity
#9
Yuan-Qiang Hu, Zhi Xu, Shu Zhang, Xiang Wu, Jun-Wei Ding, Zao-Sheng Lv, Lian-Shun Feng
Tuberculosis (TB) is a lift-threatening chronic deadliest infectious disease caused predominantly by Mycobacterium tuberculosis (MTB) which affects primarily the lungs (pulmonary TB) apart from other vital organs. The emergence of drug-resistant TB (DR-TB), multidrug-resistant TB (MDR-TB), extensively drug-resistant TB (XDR-TB) and the recently cases of totally drug resistant (TDR) towards currently accessible standard drugs was increased up to alarming level in the recent decades. In pursuit of searching new anti-TB agents, numerous of derivatives have been synthesized and screened for their anti-TB activity...
May 2, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28482954/multidrug-resistant-tuberculosis-treatment-programmes-insufficiently-consider-comorbid-mental-disorders
#10
I F Walker, S C Baral, X Wei, R Huque, A Khan, J Walley, J N Newell, H Elsey
The successful treatment of multidrug-resistant tuberculosis (MDR-TB) is a global health priority and a key pillar of the World Health Organization's (WHO's) End TB strategy. There has been significant global investment in diagnostic capabilities in recent years. However, we argue that the mental distress of those with MDR-TB and their families continues to be overlooked by TB programmes. Priorities in the End TB Strategy of 'patient-centred care' and 'patient support' are still to be delivered in practice in many low-income settings, and in particular consideration of mental distress...
June 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28480653/the-rate-of-drug-resistant-tuberculosis-in-korean-children-and-adolescents-since-2007
#11
Hyun Jung Kim, Hyung Ho Yoon, Byung Wook Eun, Youngmin Ahn, Sungweon Ryoo, Hee Jin Kim
The incidence of drug-resistant tuberculosis (DR-TB) in pediatric populations is a critical indicator of national TB management and treatment strategies. Limited data exist regarding the rate of pediatric DR-TB. In this study, we aimed to analyze the status of DR-TB in Korean children from 2007 to 2013. We analyzed specimens submitted to the Korean Institute of Tuberculosis using Mycobacterium tuberculosis culture and drug susceptibility tests (DSTs) from January 2007 through December 2013. Specimens from patients ≤ 19 years of age were included...
June 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28472124/performance-of-taqman-array-card-to-detect-tb-drug-resistance-on-direct-specimens
#12
Sayera Banu, Suporn Pholwat, Suporn Foongladda, Rattapha Chinli, Duangjai Boonlert, Sara Sabrina Ferdous, S M Mazidur Rahman, Arfatur Rahman, Shahriar Ahmed, Eric R Houpt
Culture based phenotypic drug susceptibility testing (DST) for Mycobacterium tuberculosis (TB) is time consuming therefore rapid genotypic methods are increasingly being utilized. We previously developed and evaluated on TB isolates a rapid genotypic TaqMan array card (TAC) that detects mutations in several resistance-associated genes using dozens of primer pairs, probes, and high resolution melt analysis, with >96% accuracy versus Sanger sequencing. In this study we examined the performance of TAC on sputum, comparing results between 71 paired sputum and TB isolates of which 62 were MDR-TB...
2017: PloS One
https://www.readbyqxmd.com/read/28464011/a-combination-of-baseline-plasma-immune-markers-can-predict-therapeutic-response-in-multidrug-resistant-tuberculosis
#13
Selena Ferrian, Claudia Manca, Sugnet Lubbe, Francesca Conradie, Nazir Ismail, Gilla Kaplan, Clive M Gray, Dorothy Fallows
OBJECTIVE: To identify plasma markers predictive of therapeutic response in patients with multidrug resistant tuberculosis (MDR-TB). METHODS: Fifty HIV-negative patients with active pulmonary MDR-TB were analysed for six soluble analytes in plasma at the time of initiating treatment (baseline) and over six months thereafter. Patients were identified as sputum culture positive or negative at baseline. Culture positive patients were further stratified by the median time to sputum culture conversion (SCC) as fast responders (< 76 days) or slow responders (≥ 76 days)...
2017: PloS One
https://www.readbyqxmd.com/read/28454647/genotyping-and-rifampicin-and-isoniazid-resistance-in-mycobacterium-bovis-strains-isolated-from-the-lymph-nodes-of-slaughtered-cattle
#14
Marília Masello Junqueira Franco, Márcio Garcia Ribeiro, Fernando Rogério Pavan, Marcelo Miyata, Marcos Bryan Heinemann, Antonio Francisco de Souza Filho, Rosilene Fressatti Cardoso, Aryadne Larissa de Almeida, Ricardo Ichiro Sakate, Antonio Carlos Paes
In developing nations, 10-20% of the human cases of tuberculosis are caused by Mycobacterium bovis. However, this percentage may be underestimated because most laboratories in developing countries do not routinely perform mycobacterial cultures, and only a few have the systems in place to identify M. bovis. There are few studies investigating genotypic diversity and drug resistance in M. bovis from animal and/or human infections. The genotypic diversity of M. bovis strains obtained from bovine lymph nodes were investigated by spacer oligonucleotide typing (spoligotyping) and mycobacterial interspersed repetitive unit-variable-number tandem repeat typing (MIRU-VNTR)...
May 2017: Tuberculosis
https://www.readbyqxmd.com/read/28449494/clinical-outcomes-for-multi-and-extensively-drug-resistant-tuberculosis-patients-with-adjunctive-resectional-lung-surgery-in-beijing-china
#15
Yan Ma, Yu Pang, Jian Du, Yuhong Liu, Liang Li, Weiwei Gao
The objective of this study was to assess the performance of adjective resectional lung surgery for multidrug resistant (MDR-) and extensively drug resistant tuberculosis (XDR-TB) patients in Beijing, China. Between October 1992 and October 2012, 21 MDR/XDR patients undergoing pulmonary resection at Beijing Chest Hospital were enrolled in this study. The clinical outcomes of MDR- and XDR-TB patients were analyzed with a 3-year surgical follow-up. Out of 21 patients enrolled in this study, 20 patients (95.2%) had unilateral cavitary disease, and 1 patient (4...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28448028/system-for-efficacy-and-cytotoxicity-screening-of-inhibitors-targeting-intracellular-mycobacterium-tuberculosis
#16
Xingji Zheng, Yossef Av-Gay
Mycobacterium tuberculosis, the causative agent of tuberculosis (TB), is a leading cause of morbidity and mortality worldwide. With the increased spread of multi drug-resistant TB (MDR-TB), there is a real urgency to develop new therapeutic strategies against M. tuberculosis infections. Traditionally, compounds are evaluated based on their antibacterial activity under in vitro growth conditions in broth; however, results are often misleading for intracellular pathogens like M. tuberculosis since in-broth phenotypic screening conditions are significantly different from the actual disease conditions within the human body...
April 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28446574/the-use-of-genexpert-remnants-for-drug-resistance-profiling-and-molecular-epidemiology-of-tuberculosis-in-libreville-gabon
#17
Amel Kévin Alame-Emane, Catherine Pierre-Audigier, Oriane Cordelia Aboumegone-Biyogo, Amandine Nzoghe-Mveang, Véronique Cadet-Daniel, Christophe Sola, Joël Fleury Djoba-Siawaya, Brigitte Gicquel, Howard E Takiff
Multidrug (MDR) and extensively drug resistant (XDR) Mycobacterium tuberculosis are major problems in global health. The GeneXpertMTB/RIF (Xpert) rapidly detects resistance to rifampicin (RIF-R), but detection of the additional resistance that defines MDR and XDR-TB, and for molecular epidemiology, specimen cultures and biosafe infrastructure are generally required. We sought to determine whether the remnants of sputa prepared for Xpert could be used directly to find mutations associated with drug resistance and for molecular epidemiology, and thus provide a precise characterization of MDR-TB cases in countries lacking BSL3 facilities for M...
April 26, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28442556/short-course-treatment-for-mdr-tb-jumping-the-gun
#18
EDITORIAL
Anna Turkova, Beate Kampmann
No abstract text is available yet for this article.
April 25, 2017: Thorax
https://www.readbyqxmd.com/read/28439071/diabetes-mellitus-and-the-risk-of-multidrug-resistant-tuberculosis-a-meta-analysis
#19
Qianqian Liu, Wenzhang Li, Miao Xue, Yunfeng Chen, Xinmiao Du, Chengdi Wang, Lina Han, Yin Tang, Yulin Feng, Chuanmin Tao, Jian-Qing He
The high prevalence of diabetes mellitus (DM) among multidrug resistant tuberculosis (MDR-TB) patients is a serious cause for concern. We conducted a meta-analysis to determine whether DM is an independent risk factor for MDR-TB. Electronic literature searches of the PubMed, Web of Science and EMBASE databases up to July 12, 2016 were conducted. The pooled adjusted odds ratio (OR) and 95% confidence intervals (CIs) were calculated using the random effects model with STATA 12.0 software. In total 13 studies, including 9289 individuals with TB, were included in this meta-analysis...
April 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28438143/erratum-to-high-pre-diagnosis-attrition-among-patients-with-presumptive-mdr-tb-an-operational-research-from-bhopal-district-india
#20
Hemant Deepak Shewade, Arun M Kokane, Akash Ranjan Singh, Manoj Verma, Malik Parmar, Ashish Chauhan, Sanjay Singh Chahar, Manoj Tiwari, Sheeba Naz Khan, Vivek Gupta, Jaya Prasad Tripathy, Mukesh Nagar, Sanjai Kumar Singh, Pradeep Kumar Mehra, Ajay M V Kumar
No abstract text is available yet for this article.
April 24, 2017: BMC Health Services Research
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