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https://www.readbyqxmd.com/read/28732078/impact-of-diabetes-mellitus-on-indeterminate-results-of-the-quantiferon-tb-gold-in-tube-test-a-propensity-score-matching-analysis
#1
Hong-Joon Shin, Tae-Ok Kim, Hyung-Joo Oh, Ha-Young Park, Jin-Sun Chang, Seong Ahn, Yu-Il Kim, Sung-Chul Lim, Yong-Soo Kwon
BACKGROUND: The sensitivity of interferon-gamma release assays (IGRAs) in the detection of Mycobacterium tuberculosis infection could be affected by conditions of immune dysregulation. For this reason, diabetes mellitus (DM) may increase the frequency of indeterminate results of IGRAs. However, there have been inconsistent reports of role of DM on indeterminate IGRA results. METHODS: We retrospectively reviewed all patients who underwent QuantiFERON-TB Gold In-Tube testing (QFT-GIT) at Chonnam National University Hospital...
2017: PloS One
https://www.readbyqxmd.com/read/28716677/incidence-of-active-tuberculosis-in-individuals-with-latent-tuberculosis-infection-in-rural-china-follow-up-results-of-a-population-based-multicentre-prospective-cohort-study
#2
Lei Gao, Xiangwei Li, Jianmin Liu, Xinhua Wang, Wei Lu, Liqiong Bai, Henan Xin, Haoran Zhang, Hengjing Li, Zongde Zhang, Yu Ma, Mufei Li, Boxuan Feng, Jiang Du, Hongtao Sui, Rong Zhao, Haoxiang Su, Shouguo Pan, Ling Guan, Fei Shen, Jian He, Shumin Yang, Hongyan Si, Xu Cheng, Zuhui Xu, Yunhong Tan, Tianzhu Chen, Weiguo Xu, Hong Peng, Zhijian Wang, Tao Zhu, Xiaoyou Chen, Xinhua Zhou, Xueling Guan, Qi Jin
BACKGROUND: The management of latent Mycobacterium tuberculosis infection is a new priority action for the WHO End Tuberculosis (TB) Strategy. However, national guidelines on latent tuberculosis infection testing and treatment have not yet been developed in China. Here, we present the results from the 2-year follow-up of a study that aimed to track the development of active disease in individuals with latent tuberculosis infection, identify priority populations for latent infection management, and explore the most suitable latent infection diagnostic approach...
July 14, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28705038/correction-to-diamantopoulos-et%C3%A2-al-evaluation-of-the-performance-of-tuberculin-skin-test-and-quantiferon-tb-gold-in-tube-test-in-patients-with-hematologic-malignancies
#3
(no author information available yet)
No abstract text is available yet for this article.
July 13, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28700283/update-on-immunological-test-quantiferon-tb-gold-contribution-in-the-management-of-tuberculosis-related-ocular-inflammation
#4
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/28694201/use-of-quantiferon-tb-gold-in-tube-assay-in-screening-for-neutralizing-anti-interferon-gamma-autoantibodies-in-patients-with-disseminated-nontuberculous-mycobacterial-infection
#5
Un-In Wu, Yu-Chung Chuang, Wang-Huei Sheng, Hsin-Yun Sun, Yi-Ting Jhong, Jann-Yuan Wang, Shan-Chwen Chang, Jann-Tay Wang, Yee-Chun Chen
OBJECTIVE: Anti-interferon-gamma (IFN-γ) autoantibodies (anti-IFN-γ Abs) have been increasingly recognized as an important cause of disseminated nontuberculous mycobacterial (DNTM) infection, and identification of this immunodeficiency impacts clinical management. However, the protean disease manifestations and inaccessibility to diagnostic tests in clinical settings hamper its early diagnosis. Here, we sought to determine whether QuantiFERON-TB Gold In-tube (QFT-GIT), a commercialized IFN-γ release assay, could be used to screen for neutralizing anti-IFN-γ Abs among previously healthy adults with DNTM infection...
July 7, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28682807/development-and-validation-of-a-novel-prediction-model-for-differential-diagnosis-between-crohn-s-disease-and-intestinal-tuberculosis
#6
Jung Ho Bae, Sang Hyoung Park, Byong Duk Ye, Seon-Ok Kim, Yun Kyung Cho, Eun Ja Youn, Ho-Su Lee, Sung Wook Hwang, Dong-Hoon Yang, Kyung-Jo Kim, Jeong-Sik Byeon, Seung-Jae Myung, Suk-Kyun Yang
BACKGROUND: Although colonoscopy is useful for differentiating between Crohn's disease (CD) and intestinal tuberculosis (ITB), the technique has limitations. We developed a practical prediction model for differentiating between CD and ITB using laboratory and radiologic parameters and colonoscopic characteristics. METHODS: We prospectively enrolled 80 patients newly diagnosed with CD (n = 40) and ITB (n = 40). We developed a new prediction score by integrating colonoscopic, laboratory, and radiologic parameters...
June 28, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28675138/comparison-of-quantiferon-tb-gold-in-tube-qft-git-and-tuberculin-skin-test-tst-for-diagnosis-of-latent-tuberculosis-in-haemodialysis-hd-patients-a-meta-analysis-of-%C3%AE%C2%BA-estimates-erratum
#7
E Ayubi, A Doosti-Irani, A Sanjari Moghaddam, S Khazaei, K Mansori, S Safiri, M Sani, E Mostafavi
No abstract text is available yet for this article.
July 4, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28667275/tuberculosis-infection-in-rural-labor-migrants-in-shenzhen-china-emerging-challenge-to-tuberculosis-control-during-urbanization
#8
Xiangwei Li, Qianting Yang, Boxuan Feng, Henan Xin, MingXia Zhang, Qunyi Deng, Guofang Deng, Wanshui Shan, Jianrong Yue, Haoran Zhang, Mufei Li, Hengjing Li, Qi Jin, Xinchun Chen, Lei Gao
During China's urbanization process, rural labor migrants have been suggested to be one important bridge population to change urban-rural distribution on tuberculosis (TB) burden. Aiming to estimate the prevalence of TB infection and to track the active disease development in rural labor migrants, a prospective study was conducted in Shenzhen city, southern China. TB infection was detected using interferon-γ release assay (IGRA). Here we mainly report the characteristics of TB infection in the study population based on the baseline survey...
June 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646434/performance-of-quantiferon-%C3%A2-tb-gold-in-tube-assay-in-children-receiving-disease-modifying-anti-rheumatic-drugs
#9
Francesca Gabriele, Maria Trachana, Maria Simitsopoulou, Polixeni Pratsidou-Gertsi, Elias Iosifidis, Zoi Dorothea Pana, Emmanuel Roilides
BACKGROUND: To evaluate the performance of the Quantiferon(®)-TB Gold In-Tube (QFT-IT) interferon (IFN)-γ assay for the detection of latent tuberculosis infection (LTBI) in children receiving anti-rheumatic treatment in a tertiary referral hospital of Northern Greece. METHODS: A total of 79 consecutive children receiving anti-rheumatic treatment [of which 18 screened prior to antitumor necrosis factor (TNF)-α treatment] were tested using Mantoux tuberculin skin test (TST) and QFT-IT...
June 22, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28638004/modification-of-the-hcmv-specific-ifn-%C3%AE-release-test-quantiferon-cmv-and-a-novel-proposal-for-its-application
#10
Takahiro Kobayashi, Jun-Ichi Sato, Kazufumi Ikuta, Ryoko Kanno, Kyoko Nishiyama, Tetsuo Koshizuka, Ken Ishioka, Tatsuo Suzutani
Human cytomegalovirus (HCMV) is universally distributed among humans without any adverse effects; however, it induces severe diseases in immunocompromised patients such as organ transplant recipients and AIDS patients. To manage these immunocompromised patients, an easy clinical examination for the monitoring of disease risk is required. In this study, we modified the interferon-γ (IFN-γ) release test (QuantiFERON(®)-CMV) using HCMV immediate early-1 (IE-1) or pp65 whole proteins, or UV-inactivated HCMV particles as an antigen...
June 22, 2017: Fukushima Journal of Medical Science
https://www.readbyqxmd.com/read/28628340/the-role-of-quantiferon-%C3%A2-tb-gold-and-tuberculin-skin-test-as-diagnostic-tests-for-intraocular-tuberculosis-in-hiv-positive-and-hiv-negative-patients-in-south-africa
#11
Derrick P Smit, Tonya M Esterhuizen, David Meyer
PURPOSE: To compare QuantiFERON®-TB Gold and tuberculin skin testing as diagnostic tests for intraocular tuberculosis in HIV positive and negative patients. METHODS: A prospective study evaluating two different tests to help diagnose intraocular tuberculosis. RESULTS: Thirty-five of 106 patients (33.0%) were diagnosed with intraocular tuberculosis including 11 (31.4%) with HIV infection. Patients were 6.95 times more likely to have intraocular tuberculosis if TST alone was positive (p < 0...
June 19, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28616443/elevated-spontaneous-interferon-%C3%AE-secretion-in-human-immunodeficiency-virus-infected-persons
#12
Rachel Sparks, David M Koelle, Joshua E Stern, Shireesha Dhanireddy
Immune activation in human immunodeficiency virus (HIV) is a well described phenomenon. We found that HIV patients have higher secretion of interferon (IFN)-γ compared with non-HIV subjects, as measured by the "nil" value in the QuantiFERON-TB Gold test, even when viral loads are low. This may reflect ongoing immune activation, even with optimal HIV management.
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28610785/chemokines-additional-to-ifn-%C3%AE-can-be-used-to-differentiate-among-mycobacterium-tuberculosis-infection-possibilities-and-provide-evidence-of-an-early-clearance-phenotype
#13
Ditthawat Nonghanphithak, Wipa Reechaipichitkul, Wises Namwat, Vivek Naranbhai, Kiatichai Faksri
Current diagnostic tests for tuberculosis (TB) remain limited in their ability to discriminate between active TB (ATB) and latent TB infection (LTBI). Early clearance (EC) of TB by individuals exposed to Mycobacterium tuberculosis is a debated phenomenon for which evidence is lacking. We measured and compared secreted chemokines in the plasma fraction from 48 ATB, 38 LTBI, 162 presumed EC and 39 healthy controls (HC) using the QuantiFERON(®)-TB Gold In-Tube assay. Single chemokine markers were limited in their ability to discriminate between ATB and LTBI: IFN-γ showed 16...
July 2017: Tuberculosis
https://www.readbyqxmd.com/read/28570574/the-dynamics-of-immune-responses-to-mycobacterium-tuberculosis-during-different-stages-of-natural-infection-a-longitudinal-study-among-greenlanders
#14
Sascha Wilk Michelsen, Bolette Soborg, Lars Jorge Diaz, Soren Tetens Hoff, Else Marie Agger, Anders Koch, Ida Rosenkrands, Jan Wohlfahrt, Mads Melbye
OBJECTIVE: Understanding human immunity to Mycobacterium tuberculosis (Mtb) during different stages of infection is important for development of an effective tuberculosis (TB) vaccine. We aimed to evaluate immunity to Mtb infection by measuring immune responses to selected Mtb antigens expressed during different stages of infection over time and to observe sustainability of immunity. METHODS: In a cohort study comprising East Greenlanders aged 17-22 years (2012 to 2014) who had either; undetectable Mtb infection, ongoing or prior Mtb infection at enrolment, we measured immunity to 15 antigens over a one-year period...
2017: PloS One
https://www.readbyqxmd.com/read/28566075/-evaluation-of-quantiferon%C3%A2-tb-gold-in-tube-test-and-tuberculin-skin-test-in-the-diagnosis-of-mycobacterium-tuberculosis-infection
#15
Cengiz Çavuşoğlu, Raika Durusoy, Melike Yaşar, Münevver Kayın
The aims of this study were to evaluate the sensitivity of QuantiFERON®-TB Gold in Tube (QFT) test and its agreement with the tuberculin skin test (TST), to investigate possible factors associated with indeterminate QFT test results and to explore the relationship between latent tuberculosis infection (LTBE) prevalence and the rate of tuberculosis (TB) cases in our region. 1455 cases with QFT test performed in Ege University Faculty of Medicine Hospital between 2013 and 2015 were included in the study and simultaneously TST results of 268 of 1455 cases were reached...
April 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28562756/concordance-between-ifn%C3%AE-gene-874-a-t-polymorphism-and-interferon-%C3%AE-expression-in-a-tb-endemic-indigenous-setting
#16
Zaida Araujo, Andrea Palacios, Rubén Biomon, Bruno Rivas-Santiago, Carmen Judith Serrano, Leonor Enciso-Moreno, Juan Ernesto López-Ramos, Albina Wide, Juan Carlos Jiménez, Carlos Fernández de Larrea, José Antonio Enciso-Moreno
INTRODUCTION: Interferon-γ (IFN-γ) plays a crucial role in resistance to mycobacterial diseases; accordingly, variants of the gene encoding this cytokine may be associated with elevated risk of contracting pulmonary tuberculosis (TB). METHODS: Blood samples were collected from 135 Warao indigenous individuals with newly diagnosed sputum culture-positive TB. Of these, 24 were diagnosed with active tuberculosis (ATB). The study comprised 111 participants, who were grouped as follows: 1) 14 tuberculin skin test (TST)-positive Warao indigenous individuals and 4 that were QuantiFERON-TB?Gold In-Tube (QFT-IT) test-positive, collectively comprising the latent TB infection group (LTBI), n = 18), and 2) healthy controls who were QFT-IT- and TST-negative, comprising the control group (CTRL, n = 93)...
March 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28559919/prevalence-of-latent-tuberculosis-infection-among-foreign-students-in-l%C3%A3-beck-germany-tested-with-quantiferon-tb-gold-in-tube-and-quantiferon-tb-gold-plus
#17
Elia Noemi Gallegos Morales, Johannes Knierer, Anja Schablon, Albert Nienhaus, Jan Felix Kersten
BACKGROUND: The tuberculosis (TB) incidence rate in foreign-born individuals has been increasing in Germany in recent years. Foreign students may be an important source of latent tuberculosis infection (LTBI) in low-incidence countries. In Germany, there are no guidelines for LTBI screening of foreign students. The aim of the study was to estimate LTBI prevalence and evaluate associated risk factors among foreign students in Germany. The second purpose of our study was to compare the results of the new generation of QuantiFERON-TB Gold Plus (QFT-Plus) to those of its predecessor QuantiFERON-TB Gold In-Tube (QFT-GIT)...
2017: Journal of Occupational Medicine and Toxicology
https://www.readbyqxmd.com/read/28547750/management-of-long-term-therapy-with-biological-drugs-in-psoriatic-patients-with-latent-tuberculosis-infection-in-real-life-setting
#18
Andrea Conti, Stefano Piaserico, Paolo Gisondi, Giulia Odorici, Giovanna Galdo, Claudia Lasagni, Giovanni Pellacani
Psoriatic patients with latent tuberculosis infection (LTBI) need a prophylaxis before starting a treatment with biological drugs. The aim of this study is to investigate the safety and efficacy of prophylaxis of LTBI in psoriatic patients receiving long-term biological drugs. The study included 56 patients (42 male and 14 female) affected by moderate-to-severe psoriasis (mean PASI: 12.8 ± 6.9 SD) treated with anti-TNF-α and/or anti IL 12, 23 and/or anti-CD11 drugs with a diagnosis of LTBI. LTBI diagnosis was based on tuberculin skin test and/or QuantiFERON TB Gold test positivity and chest X-ray suggestive, without clinical, or microbiological evidence of active disease...
May 26, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/28545136/assessment-of-the-quantiferon-tb-gold-in-tube-test-for-the-detection-of-mycobacterium-tuberculosis-infection-in-united-states-navy-recruits
#19
Jason M Lempp, Margan J Zajdowicz, Arlene L Hankinson, Sean R Toney, Lisa W Keep, James D Mancuso, Gerald H Mazurek
BACKGROUND: Immunologic tests such as the tuberculin skin test (TST) and QuantiFERON®-TB Gold In-Tube test (QFT-GIT) are designed to detect Mycobacterium tuberculosis infection, both latent M. tuberculosis infection (LTBI) and infection manifesting as active tuberculosis disease (TB). These tests need high specificity to minimize unnecessary treatment and high sensitivity to allow maximum detection and prevention of TB. METHODS: Estimate QFT-GIT specificity, compare QFT-GIT and TST results, and assess factor associations with test discordance among U...
2017: PloS One
https://www.readbyqxmd.com/read/28534271/optic-disc-granuloma-with-epididymitis-a-diagnostic-challenge
#20
Parthopratim Dutta Majumder, Sowkath Ali, Jyotirmay Biswas
BACKGROUND: Sarcoidosis and tuberculosis (TB) share epidemiological, immunological, and molecular features common to both, and often, it becomes difficult to differentiate them especially in a highly TB-endemic country like India. We report a case of optic disc granuloma along with epididymitis and infertility in a male who showed a response to treatment with anti-tuberculosis therapy and steroids. RESULTS: A 35-year-old Indian male who presented with complaints of blurring vision in the right eye for 6 months and treated elsewhere with two intravitreal injections of anti-VEGF was found to have optic disc granuloma in the right eye...
December 2017: Journal of Ophthalmic Inflammation and Infection
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