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https://www.readbyqxmd.com/read/28845558/history-of-pulmonary-tuberculosis-affects-the-severity-and-clinical-outcomes-of-copd
#1
Hye Jung Park, Min Kwang Byun, Hyung Jung Kim, Chul Min Ahn, Deog Kyeom Kim, Yu Il Kim, Jin Young Oh, Hyoung Kyu Yoon, Kwang-Ha Yoo, Ki Suck Jung
BACKGROUND AND OBJECTIVE: Although an association between pulmonary tuberculosis (TB) and chronic obstructive pulmonary disease (COPD) has been suggested, studies on the effect of TB in COPD patients have not been conducted. We aimed to investigate the severity and clinical outcomes of COPD in patients with and without a history of TB. METHODS: We retrospectively reviewed the data of 1784 patients with COPD in the Korean COPD Subtype Study cohort collected from December 2011 to January 2017 and followed up for 3 years...
August 27, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28802406/real-time-pcr-followed-by-high-resolution-melting-curve-analysis-a-rapid-and-pragmatic-approach-for-screening-of-multidrug-resistant-extrapulmonary-tuberculosis
#2
Kusum Sharma, Megha Sharma, Shreya Singh, Manish Modi, Aman Sharma, Pallab Ray, Subhash Varma
INTRODUCTION: Multidrug resistance (MDR) in extrapulmonary tuberculosis (EPTB) is a diagnostic challenge in an endemic country like India. Timely detection of MDR-TB can contribute to a better patient outcome. OBJECTIVE: To perform real-time PCR (qPCR) using rpoB, mpb64 and IS6110 gene on a variety of EPTB samples and to compare the performance of different gene targets. All qPCR positive samples were subjected to high resolution melt-curve analysis (HRM analysis) for rpoB and katG gene to evaluate its potential for MDR screening among different sample types...
September 2017: Tuberculosis
https://www.readbyqxmd.com/read/28798488/analysis-of-factors-influencing-diagnostic-accuracy-of-t-spot-tb-for-active-tuberculosis-in-clinical-practice
#3
Lifan Zhang, Xiaochun Shi, Yueqiu Zhang, Yao Zhang, Feifei Huo, Baotong Zhou, Guohua Deng, Xiaoqing Liu
T-SPOT.TB didn't perform a perfect diagnosis for active tuberculosis (ATB), and some factors may influence the results. We did this study to evaluate possible factors associated with the sensitivity and specificity of T-SPOT.TB, and the diagnostic parameters under varied conditions. Patients with suspected ATB were enrolled prospectively. Influencing factors of the sensitivity and specificity of T-SPOT.TB were evaluated using logistic regression models. Sensitivity, specificity, predictive values (PV), and likelihood ratios (LR) were calculated with consideration of relevant factors...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28794178/potential-of-high-affinity-slow-off-rate-modified-aptamer-somamer-reagents-for-mycobacterium-tuberculosis-proteins-as-tools-for-infection-models-and-diagnostic-applications
#4
Theresa Russell, Louis S Green, Taylor Rice, Nicole A Kruh-Garcia, Karen Dobos, Mary A DeGroote, Thomas Hraha, David G Sterling, Nebojsa Janjic, Urs A Ochsner
Direct pathogen detection in blood to diagnose active tuberculosis (TB) has been difficult, due to low levels of circulating antigens or due to the lack of specific, high-affinity binding reagents and reliable assays with adequate sensitivity. We sought to determine whether slow off-rate modified aptamer (SOMAmer) reagents with sub-nanomolar affinity for M. tuberculosis (Mtb) proteins (antigen 85A, 85B, 85C, GroES, GroEL2, DnaK, CFP10, KAD, CFP2, RplL and Tpx) could be useful to diagnose tuberculosis. When incorporated into the multiplexed, array-based proteomic SOMAscan assay, limits of detection reached the sub-picomolar range in 40% serum...
August 9, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28794177/discovery-and-validation-of-a-six-marker-serum-protein-signature-for-the-diagnosis-of-active-pulmonary-tuberculosis
#5
Mary A De Groote, David G Sterling, Thomas Hraha, Theresa Russell, Louis S Green, Kirsten Wall, Stephan Kraemer, Rachel Ostroff, Nebojsa Janjic, Urs A Ochsner
New non-sputum biomarker tests for active tuberculosis (TB) diagnostics are of highest priority for global TB control. We performed in-depth proteomic analysis using the 4000-plex SOMAscan assay on 1470 serum samples from seven TB-endemic countries. All samples were from patients with symptoms and signs suggestive of active pulmonary TB that were systematically confirmed or ruled-out for TB by culture and clinical follow-up. HIV-coinfection was present in 34%and 22% were sputum smear-negative. Serum protein biomarkers were identified by stability selection using L1-regularized logistic regression and by Kolmogorov-Smirnov (KS) statistics...
August 9, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28776532/etiology-and-outcome-of-moderate-to-massive-hemoptysis-experience-from-a-tertiary-care-center-of-north-india
#6
Ashish Bhalla, Ashok Kumar Pannu, Vikas Suri
BACKGROUND: The aim of this study was to evaluate the etiology of hemoptysis in patients presenting to emergency department of Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India. METHOD: Prospectively 110 patients presenting to the emergency department with history of hemoptysis were screened for a period of one and half years. Out of these, 64 patients having true hemoptysis were enrolled in the study. The patients were clinically evaluated with detailed history...
July 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28764156/improved-serodiagnostic-sensitivity-of-strip-test-for-latent-tuberculosis
#7
Songsri Kasempimolporn, Wichit Thaveekarn, Kanyanat Promrungreang, Orawan Khow, Supatsorn Boonchang, Visith Sitprija
INTRODUCTION: Diagnosis of Latent Tuberculosis Infection (LTBI) is difficult due to no clinical manifestations. Cases of LTBI are mostly sputum negative. The World Health Organization recommends the Tuberculin Skin Test (TST) as the current diagnostic standard for LTBI. Our previously developed serologic strip test for LTBI detection had suboptimal sensitivity. Additional Mycobacteriumtuberculosis (MTB) latency-associated antigens may improve the detection rate of LTBI. AIM: The present study aimed to optimize sensitivity of existing strip test...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28729474/trilateral-overlap-of-tuberculosis-diabetes-and-hiv-1-in-a-high-burden-african-setting-implications-for-tb-control
#8
Tolu Oni, Natacha Berkowitz, Mmamapudi Kubjane, Rene Goliath, Naomi S Levitt, Robert J Wilkinson
The diabetes mellitus burden is growing in countries where tuberculosis (TB) and HIV-1 remain major challenges, threatening TB control efforts. This study determined the association between TB and diabetes/impaired glucose regulation in the context of HIV-1.A cross-sectional study was conducted at a TB clinic in Cape Town (South Africa). Participants were screened for diabetes and impaired glucose regulation using fasting plasma glucose, oral glucose tolerance test and glycated haemoglobin (HbA1c).414 TB and 438 non-TB participants were enrolled...
July 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28724962/novel-transcriptional-signatures-for-sputum-independent-diagnostics-of-tuberculosis-in-children
#9
John Espen Gjøen, Synne Jenum, Dhanasekaran Sivakumaran, Aparna Mukherjee, Ragini Macaden, Sushil K Kabra, Rakesh Lodha, Tom H M Ottenhoff, Marielle C Haks, Timothy Mark Doherty, Christian Ritz, Harleen M S Grewal
Pediatric tuberculosis (TB) is challenging to diagnose, confirmed by growth of Mycobacterium tuberculosis at best in 40% of cases. The WHO has assigned high priority to the development of non-sputum diagnostic tools. We therefore sought to identify transcriptional signatures in whole blood of Indian children, capable of discriminating intra-thoracic TB disease from other symptomatic illnesses. We investigated the expression of 198 genes in a training set, comprising 47 TB cases (19 definite/28 probable) and 36 asymptomatic household controls, and identified a 7- and a 10-transcript signature, both including NOD2, GBP5, IFITM1/3, KIF1B and TNIP1...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700283/update-on-immunological-test-quantiferon-tb-gold-contribution-in-the-management-of-tuberculosis-related-ocular-inflammation
#10
S Trad, B Bodaghi, D Saadoun
PURPOSE: To clarify interferon-gamma release assay (IGRA) contributions to intraocular tuberculosis management, according to related TB endemic prevalence. METHODS: Despite extensive investigations, including IGRA, the diagnosis of intraocular tuberculosis (TB) is still challenging and remains mostly presumptive. According to the literature, it appears that management of suspected ocular TB differs significantly based on whether patients are from areas of high TB prevalence or from non-TB-endemic countries...
July 12, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28681508/tuberculosis-increases-the-risk-of-peripheral-arterial-disease-a-nationwide-population-based-study
#11
Sheng-Huei Wang, Wu-Chien Chien, Chi-Hsiang Chung, Fu-Huang Lin, Chung-Kan Peng, Chih-Feng Chian, Chih-Hao Shen
BACKGROUND AND OBJECTIVE: According to several studies, tuberculosis (TB) may be involved in the pathogenesis of cardiovascular disease. However, the relationship between TB and peripheral arterial disease (PAD) has not been studied. The aim of this study was to investigate whether patients with TB exhibit an increased risk of developing PAD. METHODS: The data assessed in this national population-based cohort study were obtained from the Taiwan National Health Insurance Database from 2000 to 2010...
July 5, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28648009/-diagnostic-performance-of-t-spot-tb-on-peripheral-blood-in-combination-with-adenosine-deaminase-on-pleural-fluid-for-the-diagnosis-of-tuberculous-pleurisy-within-different-age-group
#12
H Y Xu, D Q Zhang, J R Ye, S S Su, Y P Xie, C S Chen, Y P Li
Objective: To evaluate the performance of T cell enzyme-linked immuno-spot assay (T-SPOT) on peripheral blood in combination with adenosine deaminase (ADA) on pleural fluid for diagnosis of tuberculous (TB) pleurisy within different age groups. Methods: The data of patients with pleural effusion from the Department of Pulmonary and Critical Care Medicine of the First Affiliated Hospital of Wenzhou Medical University from April 2012 to November 2016 were retrospectively analyzed, and the diagnoses of these patients were histopathologically confirmed through medical thoracoscopy...
June 27, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28594104/the-risk-factor-of-false-negative-and-false-positive-for-t-spot-tb-in-active-tuberculosis
#13
Li Di, Yan Li
OBJECTIVES: T-SPOT.TB is a promising diagnosis tool to identify both pulmonary tuberculosis and extrapulmonary tuberculosis, as well as latent tuberculosis; however, the factors that affect the results of T-SPOT.TB remains unclear. In this study, we aim to figure out the risk factor of T-SPOT.TB for active TB. METHODS: A total of 349 patients were recruited between January 1st, 2016 and January 22st, 2017 at Renmin Hospital of Wuhan University, including 98 subjects with TB and 251 subjects with non-TB disease, and received T-SPOT...
June 8, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28511392/the-diagnostic-value-of-urine-lipoarabinomannan-lam-antigen-in-childhood-tuberculosis
#14
Agustin Iskandar, Erlin Nursiloningrum, Maimun Zulhaidah Arthamin, Ery Olivianto, Mas Slamet Chandrakusuma
INTRODUCTION: Diagnosis of Tuberculosis (TB) in children is difficult because the clinical presentation is not specific, the chest X-ray interpretation has low accuracy and sputum sample is difficult to obtain. Antigen detection test such as rapid urine LAM is a non-invasive alternative for diagnosing TB . Lipoarabinomannan (LAM) is the main component of M.tuberculosis cell wall. AIM: To determine the diagnostic value of urinary LAM antigen for diagnosis of childhood TB...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28490367/vitamin-d-deficiency-among-smear-positive-pulmonary-tuberculosis-patients-and-their-tuberculosis-negative-household-contacts-in-northwest-ethiopia-a-case-control-study
#15
Belay Tessema, Feleke Moges, Dereje Habte, Nebiyu Hiruy, Shewaye Yismaw, Kassahun Melkieneh, Yewulsew Kassie, Belaineh Girma, Muluken Melese, Pedro G Suarez
BACKGROUND: Vitamin D is a fat-soluble vitamin that increases the immunity against tuberculosis (TB), decreases the re-activation of latent TB and reduces the severity of active TB disease. Epidemiological studies on the prevalence of vitamin D deficiency, and its association with TB showed inconsistent results in different countries. This study was aimed to determine the prevalence of vitamin D deficiency and its association with TB in Northwest Ethiopia. METHODS: A case-control study was conducted among smear positive pulmonary tuberculosis patients and their household contacts without symptoms suggestive of TB...
May 11, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28443247/evaluation-of-a-new-ifn-%C3%AE-release-assay-for-rapid-diagnosis-of-active-tuberculosis-in-a-high-incidence-setting
#16
Gen Li, Feng Li, Hui-Min Zhao, Han-Li Wen, Hai-Cong Li, Chun-Ling Li, Ping Ji, Peng Xu, Kang Wu, Zhi-Dong Hu, Shui-Hua Lu, Douglas B Lowrie, Jian-Xin Lv, Xiao-Yong Fan
Blood-based interferon-gamma (IFN-γ) release assays (IGRAs) have been proven to be useful in the diagnosis of Mycobacterium tuberculosis (Mtb) infection. However, IGRAs have not been recommended for clinical practice in most low-income settings due to cost-intensive limitations and shortage of clinical data available. The established T-SPOT. TB assay containing Mtb-specific antigens ESAT-6 and CFP10 are widely used for immunodiagonsis of Mtb infection, but the high cost is one of the restricting factors against its clinical application in the developing countries...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28394707/sociodemographic-and-clinical-risk-factors-associated-with-tuberculosis-mortality-in-the-united-states-2009-2013
#17
Haylea A Hannah, Roque Miramontes, Neel R Gandhi
OBJECTIVES: The objectives of our study were (1) to determine risk factors associated with tuberculosis (TB)-specific and non-TB-specific mortality among patients with TB and (2) to examine whether risk factors for TB-specific mortality differed from those for non-TB-specific mortality. METHODS: We obtained data from the National Tuberculosis Surveillance System and included all patients who had TB between 2009 and 2013 in the United States and its territories. We used multinomial logistic regression analysis to determine the adjusted odds ratio (aOR) of each risk factor for TB-specific and non-TB-specific mortality...
May 2017: Public Health Reports
https://www.readbyqxmd.com/read/28359325/early-versus-late-bcg-vaccination-in-hiv-1-exposed-infants-in-uganda-study-protocol-for-a-randomized-controlled-trial
#18
Victoria Nankabirwa, James K Tumwine, Olive Namugga, Thorkild Tylleskär, Grace Ndeezi, Bjarne Robberstad, Mihai G Netea, Halvor Sommerfelt
BACKGROUND: Bacillus Calmette-Guérin (BCG) vaccination may have nonspecific effects, i.e., effects on childhood morbidity and mortality that go beyond its effect on the risk of childhood tuberculosis (TB). Though the available scientific literature is mostly from observational studies, and is fraught with controversy, BCG vaccination at birth may protect infants in high-mortality populations against serious infections other than TB. Yet, other studies indicate that giving BCG later in infancy may modify immune responses to non-TB antigens and potentially enhance immunity, potentially also against tuberculosis (TB)...
March 31, 2017: Trials
https://www.readbyqxmd.com/read/28345545/diagnostic-significance-of-mycobacterium-tuberculosis-t-cell-assays-for-active-tuberculosis
#19
Wei-Xia Xuan, Ting-Ting Lu, Zheng Wang, Yun-Xia An, Xiao-Ju Zhang
BACKGROUND: Active tuberculosis (TB) with negative results of sputum smear is difficult to be identified. Till now, there is no effective and noninvasive diagnostic method. This study evaluated the diagnostic power of Mycobacterium tuberculosis T-cell (T.SPOT®.TB) assays for active TB. METHODS: We retrospectively screened 450 suspected TB patients that were hospitalized in the Respiratory Department of Henan Province People's Hospital from June 2015 to June 2016...
April 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28345213/caries-experience-of-children-in-primary-schools-with-long-term-tooth-brushing-programs-a-pilot-australian-study
#20
T Cakar, L Harrison-Barry, M L Pukallus, S Kazoullis, W K Seow
OBJECTIVE: The aim of this study was to evaluate a primary school-based tooth brushing (TB) program conducted in a low socio-economic area of Queensland, Australia, to determine its effectiveness in reducing caries. METHODS: Records kept at the central dental clinic of the district were used to analyse the caries experience (decayed, missing, filled teeth [dmft/DMFT]) and caries prevalence in children from two schools with long-term TB programs (TB) (N=1191) and three Non-TB schools (N=553)...
March 26, 2017: International Journal of Dental Hygiene
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