keyword
MENU ▼
Read by QxMD icon Read
search

diagnostic methods tuberculosis

keyword
https://www.readbyqxmd.com/read/28651408/-identification-and-evaluation-of-t-cell-epitopes-of-rv0585c-from-mycobacterium-tuberculosis
#1
X X Wang, X Chen, Y Q Li, T Y Xiao, Y Jiang, M C Li, H C Liu, K L Wan
Objective: To investigate the human T cell epitopes of Mycobacterium (M.) tuberculosis Rv0585c protein antigen and their immunogenicity and provide evidence for the development of specific tuberculosis immune diagnostic techniques and tuberculosis vaccine. Methods: We synthesized peptides from M. tuberculosis Rv0585c protein antigen predicted by TE-predict and IEDB human T cell epitope prediction tool. The cellular immunoreactivity of the predicted peptides was evaluated through ELISpot assay with the peripheral blood monouclear cells (PBMC) of clinical tuberculosis patients...
May 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28631643/multidrug-resistant-tuberculosis-detection-and-characterization-of-mutations-in-mycobacterium-tuberculosis-by-genotype-mtbdrplus
#2
Rajneesh Tripathi, Shampa Anupurba
Detection of drug resistance in Mycobacterium tuberculosis by conventional phenotypic drug susceptibility testing methods requires several weeks. Therefore, molecular diagnostic tests for rapid detection of multidrug resistance tuberculosis (MDR-TB) are urgently needed. Early diagnosis helps in initiating optimal treatment which would not only enable cure of an individual patient but also will curb the transmission of drug resistance in the community. Line probe assay (LPA) has shown great promises in the diagnosis of MDR-TB...
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28627685/metabolomic-analysis-based-on-1h-nuclear-magnetic-resonance-spectroscopy-metabolic-profiles-in-tuberculous-malignant-and-transudative-pleural-effusion
#3
Cheng Wang, Jingjin Peng, Yanling Kuang, Jiaqiang Zhang, Luming Dai
Pleural effusion is a common clinical manifestation with various causes. Current diagnostic and therapeutic methods have exhibited numerous limitations. By involving the analysis of dynamic changes in low molecular weight catabolites, metabolomics has been widely applied in various types of disease and have provided platforms to distinguish many novel biomarkers. However, to the best of our knowledge, there are few studies regarding the metabolic profiling for pleural effusion. In the current study, 58 pleural effusion samples were collected, among which 20 were malignant pleural effusions, 20 were tuberculous pleural effusions and 18 were transudative pleural effusions...
June 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28627302/taking-costs-and-diagnostic-test-accuracy-into-account-when-designing-prevalence-studies-an-application-to-childhood-tuberculosis-prevalence
#4
Zhuoyu Wang, Nandini Dendukuri, Madhukar Pai, Lawrence Joseph
BACKGROUND: When planning a study to estimate disease prevalence to a pre-specified precision, it is of interest to minimize total testing cost. This is particularly challenging in the absence of a perfect reference test for the disease because different combinations of imperfect tests need to be considered. We illustrate the problem and a solution by designing a study to estimate the prevalence of childhood tuberculosis in a hospital setting. METHODS: All possible combinations of 3 commonly used tuberculosis tests, including chest X-ray, tuberculin skin test, and a sputum-based test, either culture or Xpert, are considered...
June 1, 2017: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/28625793/comparison-of-sputum-collection-methods-for-tuberculosis-diagnosis-a-systematic-review-and-pairwise-and-network-meta-analysis
#5
Sumona Datta, Lena Shah, Robert H Gilman, Carlton A Evans
BACKGROUND: The performance of laboratory tests to diagnose pulmonary tuberculosis is dependent on the quality of the sputum sample tested. The relative merits of sputum collection methods to improve tuberculosis diagnosis are poorly characterised. We therefore aimed to investigate the effects of sputum collection methods on tuberculosis diagnosis. METHODS: We did a systematic review and meta-analysis to investigate whether non-invasive sputum collection methods in people aged at least 12 years improve the diagnostic performance of laboratory testing for pulmonary tuberculosis...
June 15, 2017: Lancet Global Health
https://www.readbyqxmd.com/read/28612135/comparative-study-of-genexpert-mtb-rif-assay-and-multiplex-pcr-assay-for-direct-detection-of-mycobacterium-tuberculosis-in-suspected-pulmonary-tuberculosis-patients
#6
Anil Kumar Sah, Bishnu Joshi, Dhruba Kumar Khadka, Birendra Prasad Gupta, Anurag Adhikari, Subodh Kant Singh, Ganesh Rai, Geeta Shrestha Vaidya, Reema Rajbhandari, Basant Pant, Shiba Kumar Rai
Pulmonary tuberculosis (PTB) is one of the major infectious diseases in developing countries. The objective of this study was to compare rapid diagnostics technique, GeneXpert MTB/RIF (GeneXpert) and Multiplex PCR assay (MPCR) targeting IS6110 segment and mpb64 gene for direct detection of Mycobacterium tuberculosis (MTB) in suspected PTB patients. A cross sectional study was carried among 105 sputum samples from suspected PTB patients to evaluate GeneXpert and Multiplex PCR who visited National Tuberculosis Center, Nepal...
June 13, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28610793/a-novel-automatic-molecular-test-for-detection-of-multidrug-resistance-tuberculosis-in-sputum-specimen-a-case-control-study
#7
Qiang Li, Xi C Ou, Yu Pang, Hui Xia, Hai R Huang, Bing Zhao, Sheng F Wang, Yan L Zhao
MiniLab tuberculosis (ML TB) assay is a new automatic diagnostic tool for diagnosis of multidrug resistance tuberculosis (MDR-TB). This study was conducted with aims to know the performance of this assay. Sputum sample from 224 TB suspects was collected from tuberculosis suspects seeking medical care at Beijing Chest hospital. The sputum samples were directly used for smear and ML TB test. The left sputum sample was used to conduct Xpert MTB/RIF, Bactec MGIT culture and drug susceptibility test (DST). All discrepancies between the results from DST, molecular and phenotypic methods were confirmed by DNA Sequencing...
July 2017: Tuberculosis
https://www.readbyqxmd.com/read/28610788/evaluation-of-antigen-specific-interleukin-1%C3%AE-as-a-biomarker-to-detect-cattle-infected-with-mycobacterium-bovis
#8
Mahmoud M Elnaggar, Gaber S Abdellrazeq, Alaa Elsisy, Asmaa H Mahmoud, Abdelrazeq Shyboub, Martina Sester, Samy A Khaliel, Mahavir Singh, Helmy A Torky, William C Davis
Bovine tuberculosis (bTB) is a major world-wide health problem that has been difficult to control, due to the lack of an effective vaccine and limited ability of the tuberculin skin test (TST) and the ancillary whole blood interferon-gamma (IFN-γ) release assay (IGRA) to detect all infected animals. A 6 h cytokine flow cytometric IFN-γ (CFC) assay was developed in effort to overcome these limitations and expand methods for studying the mechanisms of bTB immunopathogenesis. The present study was conducted to evaluate IL-1β as a biomarker to use in conjunction with the IFN-γ CFC assay to improve the diagnostic accuracy for bTB...
July 2017: Tuberculosis
https://www.readbyqxmd.com/read/28604333/performance-of-the-quantamatrix-multiplexed-assay-platform-system-for-the-differentiation-and-identification-of-mycobacterium-species
#9
Hye-Young Wang, Young Uh, Seoyong Kim, Hyeyoung Lee
PURPOSE: The purpose of this study was to evaluate the usefulness of a new diagnostic multiplexed bead-based bioassay (Quantamatrix Multiplexed Assay Platform; QMAP) system with shape-encoded silica microparticles for the rapid and accurate detection and identification of 23 mycobacterial species/groups, including Mycobacterium tuberculosis complex (MTBC). METHODOLOGY: A total of 295 mycobacterial clinical isolates cultured from respiratory specimens were used for identification of MTBC and non-tuberculous mycobacteria (NTM) using the QMAP system and the results were confirmed with PCR-restriction fragment length polymorphism (RFLP) analysis of the rpoB gene, rpoB sequence analysis and PCR-reverse blot hybridization assay (REBA)...
June 13, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28595598/isolation-biochemical-and-molecular-identification-of-nocardia-species-among-tb-suspects-in-northeastern-tanzania-a-forgotten-or-neglected-threat
#10
Abubakar S Hoza, Sayoki G S Mfinanga, Irmgard Moser, Brigitte König
BACKGROUND: Pulmonary nocardiosis mimic pulmonary tuberculosis in most clinical and radiological manifestations. In Tanzania, where tuberculosis is one of the major public health threat clinical impact of nocardiosis as the cause of the human disease remains unknown. The objective of the present study was to isolate and identify Nocardia isolates recovered from TB suspects in Northeastern, Tanzania by using biochemical and molecular methods. METHODS: The study involved 744 sputum samples collected from 372 TB suspects from four periphery diagnostic centers in Northeastern, Tanzania...
June 8, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28592925/second-generation-multiple-reaction-monitoring-assays-for-enhanced-detection-of-ultra-low-abundance-mycobacterium-tuberculosis-peptides-in-human-serum
#11
Carolina Mehaffy, Karen M Dobos, Payam Nahid, Nicole A Kruh-Garcia
BACKGROUND: Mycobacterium tuberculosis (Mtb) is the causative agent of Tuberculosis (TB), the number one cause of death due to an infectious disease. TB diagnosis is performed by microscopy, culture or PCR amplification of bacterial DNA, all of which require patient sputum or the biopsy of infected tissue. Detection of mycobacterial products in serum, as biomarkers of diagnosis or disease status would provide an improvement over current methods. Due to the low-abundance of mycobacterial products in serum, we have explored exosome enrichment to improve sensitivity...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28592547/performance-of-the-abbott-realtime-mtb-and-mtb-rif-inh-assays-in-a-high-tb-and-hiv-coinfection-setting-in-south-africa
#12
Lesley Scott, Anura David, Lara Noble, Matilda Nduna, Pedro Da Silva, Andrew Black, Francois Venter, Wendy Stevens
Background: South Africa is a country with a high incidence of tuberculosis (TB), complicated by coinfection with HIV. The Xpert MTB/RIF (Cepheid, Sunnyvale, CA, USA) is used in South Africa as the test for initial diagnosis of TB, and other molecular platforms such as the m2000 (Abbott Molecular, Des Plaines, IL, USA) are widely used for molecular monitoring of HIV viral load. This latter platform is now also equipped with the RealTime MTB and RealTime MTB RIF/INH assays for TB and first line drug resistance screening, but has not been evaluated in settings of HIV and TB coinfection...
June 7, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28591268/diagnosis-of-mycobacteria-in-bovine-milk-an-overview
#13
Carmen Alicia Daza Bolaños, Carolina Lechinski de Paula, Simony Trevizan Guerra, Marília Masello Junqueira Franco, Márcio Garcia Ribeiro
Tuberculosis remains as the world's biggest threat. In 2014, human tuberculosis ranked as a major infectious disease by the first time, overcoming HIV death rates. Bovine tuberculosis is a chronic disease of global distribution that affects animals and can be transmitted to humans by the consumption of raw milk, representing a serious public health concern. Despite the efforts of different countries to control and eradicate bovine tuberculosis, the high negative economic impact on meat and milk production chains remains, given the decreased production efficiency (approximately 25%), the high number of condemned carcasses, and increased animal culling rates...
June 5, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28571129/comparative-diagnostic-utility-of-is6110-pcr-assay-in-csf-and-peripheral-blood-samples-of-tuberculous-meningitis-patients-a-pilot-study-from-central-india
#14
Sonali D Manke, Aliabbas A Husain, Hatim F Daginawala, Lokendra K Singh, Rajpal S Kashyap
INTRODUCTION: Tuberculous Meningitis (TBM) is the most severe form of Central Nervous System Tuberculosis (CNS-TB) and constitutes about 6% of all Extrapulmonary TB (EPTB) cases. Most guidelines for the diagnosis and management of TBM agree on the use of simple Cerebrospinal Fluid (CSF) analysis using molecular tools like Polymerase Chain Reaction (PCR). However, the sensitivity of PCR varies while using a CSF sample. In the present study, we have compared the diagnostic utility of PCR assay in both peripheral blood and CSF sample collected from TBM cases...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28559703/the-value-of-laboratory-tests-in-the-diagnosis-of-tuberculosis
#15
Nicolae Petre, Carmen Monica Pop, Daniela Homorodean
BACKGROUND AND AIM: In the last decades, the inhabitants of the Romanian region known as Jiu Valley underwent changes in their social and economic status which determined changes in behaviour and health, which influenced their general health condition. One of the consequences was the exacerbation of tuberculosis. In order to control this situation, there was a need to increase the efficiency of diagnosis. This optimization can be reached by a better detection of mycobacterium infection, optimal isolation of strains and identification of the resistance of strains to antituberculous drugs...
2017: Clujul Medical (1957)
https://www.readbyqxmd.com/read/28554925/a-cross-sectional-study-on-prevalence-of-chronic-obstructive-pulmonary-disease-copd-in-india-rationale-and-methods
#16
Prabu Rajkumar, Kamaraj Pattabi, Selvaraj Vadivoo, Arvind Bhome, Bill Brashier, Prashanta Bhattacharya, Sanjay M Mehendale
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a common preventable and treatable chronic respiratory disease, which affects 210 million people globally. Global and national guidelines exist for the management of COPD. Although evidence-based, they are inadequate to address the phenotypic and genotypic heterogeneity in India. Co-existence of other chronic respiratory diseases can adversely influence the prognosis of COPD.India has a huge burden of COPD with various risk factors and comorbid conditions...
May 29, 2017: BMJ Open
https://www.readbyqxmd.com/read/28542255/detection-of-mycobacterium-tuberculosis-from-the-stool-of-hiv-sero-positive-individuals-suspected-of-pulmonary-tuberculosis
#17
Gizaw E Abaye, Tamrat Abebe, Adane Worku, Debela Tolessa, Gobena Ameni, Adane Mihret
BACKGROUND: The impact of tuberculosis (TB) is exacerbated in Africa because of the human immunodeficiency virus (HIV) pandemic. Pulmonary tuberculosis (PTB) diagnosis is difficult in HIV-infected patients and negative sputum results are more common which leads to diagnostic delay and increases morbidity and mortality. Extra-pulmonary samples such as stool may be easier to obtain and our approach may therefore significantly improve PTB detection in people living with HIV. OBJECTIVE: To detect Mycobacterium tuberculosis from the stool of HIV sero-positive individuals suspected of pulmonary TB...
2017: PloS One
https://www.readbyqxmd.com/read/28533576/ifn-%C3%AE-and-il-2-responses-to-recombinant-aladh-against-esat-6-cfp-10-fusion-antigens-in-the-diagnosis-of-latent-versus-active-tuberculosis-infection
#18
Bahram Movahedi, Pooneh Mokarram, Mina Hemmati, Nader Mosavari, Razie Zare, Leila Safaee Ardekani, Zohreh Mostafavi-Pour
BACKGROUND: Discriminating latent tuberculosis infection (LTBI) from active TBI may be challenging. The objective of this study was to produce the recombinant L-alanine dehydrogenase (AlaDH) antigen and evaluate individuals with LTBI, those with active TBI, and uninfected individuals by enzyme-linked immunospot assay (ELISPOT) in order to distinguish LTBI from active TBI. METHODS: This exploratory study was performed in the Iranian city of Shiraz from 2014 to 2015...
May 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28527886/immuno-pcr-a-new-technique-for-the-serodiagnosis-of-tuberculosis
#19
REVIEW
Promod K Mehta, Bhawna Dahiya, Suman Sharma, Netrapal Singh, Renu Dharra, Zoozeal Thakur, Neeru Mehta, Krishna B Gupta, Mahesh C Gupta, Dhruva Chaudhary
Rapid and accurate diagnosis of tuberculosis (TB) is essential to control the disease. The conventional microbiological tests have limitations and there is an urgent need to devise a simple, rapid and reliable point-of-care (POC) test. The failure of TB diagnostic tests based on antibody detection due to inconsistent and imprecise results has stimulated renewed interest in the development of rapid antigen detection methods. However, the World Health Organization (WHO) has emphasized to continue research for designing new antibody-based detection tests with improved accuracy...
May 17, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28522247/potential-of-multi-component-antigens-for-tuberculosis-diagnosis
#20
Sana Khurshid, Madeeha Afzal, Ruqqya Khalid, M Waheed Akhtar, Mahmood Husain Qazi
Tuberculosis is one of the top ten causes of deaths worldwide. The cause of tuberculosis is a bacterium, Mycobacterium tuberculosis, which has been surviving for centuries. Immunological tests based on detecting the presence of antibodies in the sera of active TB patients against various antigens of M. tuberculosis are useful for diagnosis of TB and offer simple, rapid and cost effective methods most suitable for poor and developing countries. Several recombinant antigens have been reported so far with varying sensitivity individually, yet none had shown sensitivity higher enough to be used in a commercial test...
May 15, 2017: Biologicals: Journal of the International Association of Biological Standardization
keyword
keyword
104200
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"