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https://www.readbyqxmd.com/read/29456392/chest-x-ray-findings-comparison-between-multi-drug-resistant-tuberculosis-and-drug-sensitive-tuberculosis
#1
Aziza Ghanie Icksan, Martin Raja Sonang Napitupulu, Mohamad Arifin Nawas, Fariz Nurwidya
Background: Imaging has a big role in tuberculosis (TB) diagnosis and chest X-ray is preferable because it is available in primary health care and can point out the location, area, and morphology of lesions, such as cavity, consolidation, pleural effusions, and fibrosis. We aimed to compare the chest X-ray findings in multi-drug resistant TB (MDR-TB) and in drug-sensitive TB (DS-TB) cases. Methods: This is a retrospective cross-sectional study which compares chest X-ray findings of two groups of patients, involving 183 DS-TB patients and 183 MDR-TB patients...
January 2018: Journal of Natural Science, Biology, and Medicine
https://www.readbyqxmd.com/read/29454979/variants-of-tlr1-associated-with-tuberculosis-susceptibility-in-the-chinese-tibetan-population-but-not-in-han-chinese
#2
Miaomiao Zhang, Xiaoyan Tang, Yu Wang, Shouquan Wu, Minggui Wang, Qianqian Liu, Andrew J Sandford, Jian-Qing He
Toll-like receptor 1 (TLR1) participates in the innate immune response to Mycobacterium tuberculosis. This study mainly investigated the relationship between polymorphisms of TLR1 and tuberculosis (TB) susceptibility in the two Chinese populations. Totally, 1185 Han and 1216 Tibetan participants were enrolled. TagSNPs of TLR1 were selected and genotyped. Analyses of linkage disequilibrium and haplotypes were performed by software Haploview and SHEsis. Gene-gene interactions were evaluated using the nonparametric multifactor dimensionality reduction (MDR) method...
February 15, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29453405/widespread-use-of-incorrect-pcr-ramp-rate-negatively-impacts-multidrug-resistant-tuberculosis-diagnosis-mtbdrplus
#3
B Derendinger, M de Vos, R R Nathavitharana, T Dolby, J A Simpson, P D van Helden, R M Warren, G Theron
The scale-up of rapid drug resistance testing for TB is a global priority. MTBDRplus is a WHO-endorsed multidrug-resistant (MDR)-TB PCR assay with suboptimal sensitivities and high indeterminate rates on smear-negative specimens. We hypothesised that widespread use of incorrect thermocycler ramp rate (speed of temperature change between cycles) impacts performance. A global sample of 72 laboratories was surveyed. We tested 107 sputa from Xpert MTB/RIF-positive patients and, separately, dilution series of bacilli, both at the manufacturer-recommended ramp rate (2...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29452942/early-safety-and-efficacy-of-the-combination-of-bedaquiline-and-delamanid-for-the-treatment-of-patients-with-drug-resistant-tuberculosis-in-armenia-india-and-south-africa-a-retrospective-cohort-study
#4
Gabriella Ferlazzo, Erika Mohr, Chinmay Laxmeshwar, Catherine Hewison, Jennifer Hughes, Sylvie Jonckheere, Naira Khachatryan, Virginia De Avezedo, Lusine Egazaryan, Amir Shroufi, Stobdan Kalon, Helen Cox, Jennifer Furin, Petros Isaakidis
BACKGROUND: Bedaquiline and delamanid have been approved for treatment of multidrug-resistant (MDR) tuberculosis in the past 5 years. Because of theoretical safety concerns, patients have been unable to access the two drugs in combination. Médecins Sans Frontières has supported the use of combination bedaquiline and delamanid for people with few treatment options since 2016. We describe early safety and efficacy of regimens containing the bedaquiline and delamanid combination in patients with drug-resistant tuberculosis in Yerevan, Armenia; Mumbai, India; and Khayelitsha, South Africa...
February 13, 2018: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/29447273/molecular-epidemiology-and-drug-sensitivity-pattern-of-mycobacterium-tuberculosis-strains-isolated-from-pulmonary-tuberculosis-patients-in-and-around-ambo-town-central-ethiopia
#5
Melaku Tilahun, Gobena Ameni, Kassu Desta, Aboma Zewude, Lawrence Yamuah, Markos Abebe, Abraham Aseffa
INTRODUCTION: Tuberculosis (TB) is caused by M. tuberculosis complex and remains a major global public health problem. The epidemic remains a threat to sub-Saharan Africa, including Ethiopia, with further emergence of drug resistant TB. We investigated the drug sensitivity pattern and molecular epidemiology of mycobacterial strains isolated from pulmonary TB patients in and around Ambo town in Oromia Region, Central Ethiopia. METHODS: A cross-sectional study was conducted involving 105 consecutive new smear positive pulmonary TB patients diagnosed at Ambo Hospital and surrounding Health Centers between May 2014 and March 2015 upon informed consent...
2018: PloS One
https://www.readbyqxmd.com/read/29441052/harnessing-the-mtor-pathway-for-tuberculosis-treatment
#6
REVIEW
Pooja Singh, Selvakumar Subbian
Tuberculosis (TB) remains as one of the leading killer infectious diseases of humans. At present, the standard therapeutic regimen to treat TB comprised of multiple antibiotics administered for a minimum of six months. Although these drugs are useful in controlling TB burden globally, they have not eliminated the disease. In addition, the lengthy duration of treatment with multiple drugs contributes to patient non-compliance that can result in the development of drug resistant strains (MDR and XDR) of Mycobacterium tuberculosis (Mtb), the causative agent of TB...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29440162/sequelae-of-multidrug-resistant-tuberculosis-protocol-for-a-systematic-review-and-meta-analysis
#7
Kefyalew Addis Alene, Archie C A Clements, Emma S McBryde, Ernesto Jaramillo, Knut Lonnroth, Debebe Shaweno, Kerri Viney
INTRODUCTION: The sequelae of multidrug-resistant tuberculosis (MDR-TB) are poorly understood and inconsistently reported. We will aim to assess the existing evidence for the clinical, psychological, social and economic sequelae of MDR-TB and to assess the health-related quality of life in patients with MDR-TB. METHODS AND ANALYSIS: We will perform a systematic review and meta-analysis of published studies reporting sequelae of MDR-TB. We will search PubMed, SCOPUS, ProQuest, Web of Science and PsychINFO databases up to 5 September 2017...
February 10, 2018: BMJ Open
https://www.readbyqxmd.com/read/29437632/time-to-multidrug-resistant-tuberculosis-treatment-initiation-in-association-with-treatment-outcomes-in-shanghai-china
#8
Yong Chen, Zhengan Yuan, Xin Shen, Jie Wu, Zheyuan Wu, Biao Xu
In high TB-burden countries like China, the diagnosis of multidrug-resistant tuberculosis (MDR-TB) using conventional drug susceptibility testing (DST) takes months, making treatment delay inevitable. Poor outcomes of MDR-TB might be associated with delayed, even inappropriate treatment. The purpose of this study was to investigate the time to MDR-TB treatment initiation, and to assess the association between early treatment and treatment outcomes. Between April 2011 and December 2014, this population-based, retrospective cohort study collected the demographic and clinical characteristics, and the drug susceptibility profiles of all registered MDR-TB patients in Shanghai, China...
February 5, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29426372/assessment-of-genexpert%C3%A2-gxalert-platform-for-multi-drug-resistant-tuberculosis-diagnosis-and-patients-linkage-to-care-in-tanzania
#9
Nicholaus Peter Mnyambwa, Issack Lekule, Esther S Ngadaya, Godfather Kimaro, Pammla Petrucka, Dong-Jin Kim, Johnson Lymo, Rudovick Kazwala, Fausta Mosha, Sayoki G Mfinanga
OBJECTIVE: The gap between patients diagnosed with multi-drug resistant tuberculosis (MDR-TB) and enrolment in treatment is one of the major challenges in tuberculosis control programmes. A 4-year (2013-2016) retrospective review of patients' clinical data and subsequent in-depth interviews with health providers were conducted to assess the effectiveness of the GeneXpert GxAlert platform for MDR-TB diagnosis and its impact on linkage of patients to care in Tanzania. RESULTS: A total of 782 new rifampicin resistant cases were notified, but only 242 (32...
February 9, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29416359/sputum-bacteriology-conversion-and-treatment-outcome-of-patients-with-multidrug-resistant-tuberculosis
#10
Lingshuang Lv, Tiecheng Li, Kun Xu, Peiyi Shi, Biyu He, Weimin Kong, Jianming Wang, Jian Sun
Purpose: Multidrug-resistant tuberculosis (MDR-TB) requires long-term treatment, has a high fatality rate, and constitutes a global threat. Earlier detection of treatment failure is required to predict therapeutic efficacy. Patients and methods: We enrolled MDR-TB patients consecutively from January 2011 through December 2012 in Lianyungang, China. Sputum smear microscopy tests and sputum cultures were performed once a month for the first 6 months following initiation of antituberculosis treatment and once every 2 months thereafter until the end of therapy...
2018: Infection and Drug Resistance
https://www.readbyqxmd.com/read/29406800/rapid-molecular-diagnostics-for-multi-drug-resistant-tuberculosis-in-india
#11
Rajeswari Ramachandran, M Muniyandi
Rapid molecular diagnostic methods help in the detection of TB and Rifampicin resistance. These methods detect TB early, are accurate and play a crucial role in reducing the burden of drug resistant tuberculosis. Areas covered: This review analyses rapid molecular diagnostic tools used in the diagnosis of MDR-TB in India, such as the Line Probe Assay and GeneXpert. We have discussed the burden of MDR-TB and the impact of recent diagnostic tools on case detection and treatment outcomes. This review also discusses the costs involved in establishing these new techniques in India...
February 6, 2018: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/29406278/association-of-tnf-%C3%AE-il-10-and-il-6-promoter-polymorphisms-in-pulmonary-tuberculosis-patients-and-their-household-contacts-of-younger-age-group
#12
Lavanya Joshi, Lakshmi Kiran Chelluri, Vijayalakshmi Valluri, Sumanlatha Gaddam
Single nucleotide polymorphisms (SNPs) of cytokine genes have been found to be involved in the clinical outcome of Tuberculosis. The present study was aimed to identify the high risk genotypes in Tuberculosis patients and their household contacts. A total of 490 subjects were studied which includes 150 active pulmonary tuberculosis patients (APTB), 190 household contacts (HHC) and 150 healthy controls (HC). The SNPs of TNF-α (-308A/G), IL-10(-1082G/A) and IL-6(-174G/C) were performed by ARMs PCR. The IL-10 GA genotype showed significant association in APTB and HHC and was 2...
February 2018: Comparative Immunology, Microbiology and Infectious Diseases
https://www.readbyqxmd.com/read/29405151/evaluation-of-genotype-mtbdrplus-line-probe-assay-in-detection-of-rifampicin-and-isoniazid-resistance-in-comparison-to-solid-culture-drug-susceptibility-testing-in-a-tertiary-care-centre-of-western-uttar-pradesh
#13
Shariq Ahmed, Indu Shukla, Nazish Fatima, Sumit K Varshney, Mohammad Shameem
BACKGROUND: Isoniazid (INH) and rifampicin (Rif) are the key first-line antituberculosis drugs, and resistance to these drugs i.e., multi-drug-resistant tuberculosis (MDR-TB), is likely to result in treatment failure and poor clinical outcomes. India has the highest burden of TB and MDR-TB in the world, disproportionately high even for India's population. The GenoType® MTBDRplus molecular method allows rapid detection of Rif and INH resistance. AIM: The present study was done to compare the performance of line probe assay test (GenoType® MTBDRplus) with solid culture method for an early diagnosis of MDR-TB...
October 2017: Indian Journal of Medical Microbiology
https://www.readbyqxmd.com/read/29394358/treatment-outcomes-of-multidrug-resistant-tuberculosis-in-taiwan-tackling-loss-to-follow-up
#14
Ming-Chih Yu, Chen-Yuan Chiang, Jen-Jyh Lee, Shun-Tien Chien, Chou-Jui Lin, Shih-Wei Lee, Chih-Bin Lin, Wen-Ta Yang, Ying-Hsun Wu, Yi-Wen Huang
Background: The proportion of treatment success among multidrug-resistant tuberculosis (MDR-TB) patients enrolled between 1992 and 1996 was 51.2%, and that among patients enrolled between 2000 and April 2007 was 61%. To address the challenge of MDR-TB, the Taiwan MDR-TB Consortium (TMTC) was established in May 2007. To assess the performance of the TMTC, we analyzed the data of patients enrolled in its first 5 years. Methods: Comprehensive care was provided at no cost to patients, who were usually hospitalized for one month initially...
January 31, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29390307/pulmonary-resection-in-the-treatment-of-multidrug-resistant-tuberculosis-a-case-series
#15
Lin Wang, Fan Xia, Feng Li, Xueqin Qian, Yijun Zhu, Hui Chen, Aoao Bian, Jun Wang, Min Zhang, Hongwei Li, Jiafu Han, Nan Jiang, Ning Xu, Yanzheng Song
Multidrug-resistant (MDR) and extensive drug-resistant (XDR) tuberculosis (TB) are significant health problems throughout the world. Although the main treatment is medical, adjunctive surgical resection may increase the chance of cure in selected patients with MDR-TB or XDR-TB. This study aimed to present a case series of patients who underwent surgical resection for MDR-TB.Between March 2008 and November 2011, surgical resection was performed on 54 patients including 34 with MDR-TB and 20 with XDR-TB at the Departments of Surgery of Shanghai Public Health Clinical Center (Shanghai), Henan Chest Hospital (Henan), and Anhui Chest Hospital (Henan)...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29388150/rv0646c-an-esterase-from-m-tuberculosis-up-regulates-the-host-immune-response-in-thp-1-macrophages-cells
#16
Ruchi Rastogi, Arbind Kumar, Jagdeep Kaur, Varinder Saini, Jasbinder Kaur, Archana Bhatnagar
The genome sequence of Mycobacterium tuberculosis revealed the presence of several hydrolases involved in lipid metabolism including the members of Lip gene family. Rv0646c (LipG) is one of them. It is annotated as putative esterase/lipase because of the presence of consensus sequence 'GXSXG.' The gene was cloned, expressed, and purified in E. coli. It showed 22 U/mg specific activity with pNP-butyrate as a preferred substrate. However, it actively worked on substrates with short chain. The enzyme was optimally active at 50 °C/pH 8...
January 31, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29387346/drug-resistant-tuberculosis-in-saudi-arabia-an-analysis-of-surveillance-data%C3%A2-2014-2015
#17
Maha Al Ammari, Abdulrahman Al Turaiki, Mohammed Al Essa, Abdulhameed M Kashkary, Sara A Eltigani, Anwar E Ahmed
Background: There is limited data that investigates the national rates of drug-resistant tuberculosis (TB) in Saudi Arabia.This study aimed to estimate the rates of multi-drug-resistant tuberculosis (MDR-TB), rifampicin-resistant tuberculosis (RR-TB), and monoresistance (MR) in Saudi Arabia. Methods: A retrospective cohort study was conducted on all TB cases reported to the National TB Control and Prevention Program (NTCPP) registry at the Saudi Ministry of Health between January 1, 2014 and December 31, 2015...
2018: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29377374/identification-of-small-molecular-inhibitors-for-efflux-protein-rv2688c-of-mycobacterium-tuberculosis
#18
Rajender Vadija, Kiran Kumar Mustyala, Vasavi Malkhed, Ramasree Dulapalli, Hymavathi Veeravarapu, Ramesh Malikanti, Uma Vuruputuri
Mycobacterium tuberculosis (Mtb) is the pathogen, which causes Tuberculosis (TB). Development of Multidrug resistant (MDR) and extensively drug resistant (XDR) strains in Mtb is due to an efflux mechanism of antibiotics in the bacteria. The efflux pump proteins in the bacteria are implicated in the active efflux of antibiotics. The efflux pump protein, 'Fluoroquinolones export ATP-binding protein Rv2688c' (FEAB), is considered as a potential therapeutic target to prevent Tuberculosis. In the present work, in silico protocols are applied to identify inhibitors for the FEAB protein to arrest the efflux mechanism...
January 29, 2018: Biotechnology and Applied Biochemistry
https://www.readbyqxmd.com/read/29374822/analysis-of-multi-drug-resistant-tuberculosis-mdr-tb-financial-protection-policy-mdr-tb-health-insurance-schemes-in-chhattisgarh-state-india
#19
Debashish Kundu, Nandini Sharma, Sarabjit Chadha, Samia Laokri, George Awungafac, Lai Jiang, Miqdad Asaria
INTRODUCTION: There are significant financial barriers to access treatment for multi drug resistant tuberculosis (MDR-TB) in India. To address these challenges, Chhattisgarh state in India has established a MDR-TB financial protection policy by creating MDR-TB benefit packages as part of the universal health insurance scheme that the state has rolled out in their effort towards attaining Universal Health Coverage for all its residents. In these schemes the state purchases health insurance against set packages of services from third party health insurance agencies on behalf of all its residents...
January 27, 2018: Health Economics Review
https://www.readbyqxmd.com/read/29374587/clinical-outcome-of-multidrug-resistant-tuberculosis-patients-receiving-standardized-second-line-treatment-regimen-in-china
#20
Caihong Xu, Yu Pang, Renzhong Li, Yunzhou Ruan, Lixia Wang, Mingting Chen, Hui Zhang
OBJECTIVES: The aim of this study was to retrospectively analyze the clinical outcome and the risk factors associated with poor outcome of MDR-TB patients receiving standardized second-line treatment regimen in China. METHODS: Between January 2008 and December 2010, a total of 12,100 clinical diagnosed TB cases at high risk of drug-resistant TB (DR-TB) were enrolled in this study. Routine follow-up tests were conducted every month during the 6-month intensive phase, and every two months during the 18-month continuation phase...
January 25, 2018: Journal of Infection
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