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https://www.readbyqxmd.com/read/28911359/interferon-gamma-response-to-the-treatment-of-active-pulmonary-and-extra-pulmonary-tuberculosis
#1
L Liang, R Shi, X Liu, X Yuan, S Zheng, G Zhang, W Wang, J Wang, K England, L E Via, Y Cai, L C Goldfeder, L E Dodd, C E Barry, R Y Chen
BACKGROUND: Interferon-gamma (IFN-γ) release assays (IGRAs) are used to diagnose tuberculosis (TB) but not to measure treatment response. OBJECTIVE: To measure IFN-γ response to active anti-tuberculosis treatment. DESIGN: Patients from the Henan Provincial Chest Hospital, Henan, China, with TB symptoms and/or signs were enrolled into this prospective, observational cohort study and followed for 6 months of treatment, with blood and sputum samples collected at 0, 2, 4, 6, 8, 16 and 24 weeks...
October 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28886099/serial-quantiferon-tb-gold-testing-in-patients-with-psoriasis-treated-with-ustekinumab
#2
Chuan-Yu Hsiao, Hsien-Yi Chiu, Ting-Shun Wang, Tsen-Fang Tsai
BACKGROUND: There is increasing concern about the risk of latent tuberculosis infection (LTBI) reactivation during the use of biologics for psoriasis. Although ustekinumab had been documented with low risk of tuberculosis, the long-term follow-up of LTBI as determined by QuantiFERON-TB Gold (QFT-G) testing in patients treated with ustekinumab is limited. OBJECTIVES: This study aims to use serial QFT-G testing as a screening method for detecting LTBI in patients with psoriasis from an intermediate tuberculosis burden country...
2017: PloS One
https://www.readbyqxmd.com/read/28877156/performance-of-the-quantiferon-tb-gold-assay-among-hiv-infected-children-with-active-tuberculosis-in-france
#3
Myriam Hormi, Valérie Guérin-El Khourouj, Virginie Pommelet, Mohamed Jeljeli, Béatrice Pédron, Jean-Sébastien Diana, Albert Faye, Ghislaine Sterkers
BACKGROUND: Data regarding the use of QuantiFERON to assist the diagnosis of active tuberculosis (TB) in HIV-infected children is limited, especially in countries with low incidence of TB/HIV co-infection. METHODS: QuantiFERON results were analyzed in 63 HIV-infected children who presented to our hospital in Paris, France. Seventeen HIV-uninfected children with active TB (4 culture-confirmed) were included for comparison. RESULTS: The 63 HIV-infected children (median age: 11 years) had 113 QuantiFERON tests...
September 5, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28859607/suitability-of-saliva-for-tuberculosis-diagnosis-comparing-with-serum
#4
Anna Ritah Namuganga, Novel N Chegou, Paul Mubiri, Gerhard Walzl, Harriet Mayanja-Kizza
BACKGROUND: In the search for fast, simple and better ways for diagnosis of tuberculosis (TB), there is need to discover and evaluate new biomarkers that are found in samples other than sputum to determine their effectiveness. This study examined the utility of saliva vis-a-vis serum by evaluating levels of biomarkers found in saliva and serum from TB suspects. METHODS: Study enrolled tuberculosis suspects. Sputum MGIT was used as the gold standard for active TB...
August 31, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28854216/quantiferon%C3%A2-tb-gold-in-tube-for-contact-screening-in-bcg-vaccinated-adults-a-longitudinal-cohort-study
#5
Laura Muñoz, Lucia Gonzalez, Laura Soldevila, Jordi Dorca, Fernando Alcaide, Miguel Santin
OBJECTIVE: To assess the utility of QuantiFERON®-TB Gold In-tube (QFT-GIT) for targeting preventive therapy in BCG-vaccinated contacts of tuberculosis (TB), based on its high specificity and negative predictive value for development of TB. METHODS: We compared two screening strategies for TB contact tracing in two consecutive periods: the tuberculin skin test (TST) period, when all contacts were screened with the TST alone; and the QFT-GIT period, when BCG-vaccinated contacts underwent TST and QFT-GIT...
2017: PloS One
https://www.readbyqxmd.com/read/28840843/interferon-gamma-release-assay-in-response-to-pe35-ppe68-proteins-a-promising-diagnostic-method-for-diagnosis-of-latent-tuberculosis
#6
Shima Mahmoudi, Babak Pourakbari, Setareh Mamishi
Tuberculosis control relies on the identification and preventive treatment of people who are latently infected with Mycobacterium tuberculosis (Mtb). PE/PPE proteins have been reported to elicit CD4 and/or CD8 responses either in the form of whole recombinant proteins or as individual peptides. Very few of the PE and PPE proteins have been previously tested for responses in patients with TB and healthy donors. This is the first study to evaluate the Interferon Gamma Release Assay (IGRA) after stimulation with PE35 and PPE68...
March 1, 2017: European Cytokine Network
https://www.readbyqxmd.com/read/28820170/paradoxical-worsening-of-a-case-of-tb-subretinal-abscess-with-serpiginous-like-choroiditis-following-the-initiation-of-antitubercular-therapy
#7
Sudha K Ganesh, B Sowkath Ali
A 37-year-old immunocompetent male patient presented with the blurring of vision, both eyes for the past1 year. Fundus examination revealed bilateral multiple subretinal abscesses with areas of healed serpiginous-like choroiditis. Laboratory investigations showed positive tuberculin skin test, positive QuantiFERON TB-Gold Test, and high resolution computed tomography chest showed enlarged mediastinal lymph nodes. The aqueous sample revealed polymerase chain reaction (PCR) positive for Mycobacterium tuberculosis (MTB) (MPB64 genome)...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28814447/acute-myocarditis-secondary-to-cardiac-tuberculosis-a-case-report
#8
Alice Cowley, Laura Dobson, John Kurian, Christopher Saunderson
Isolated myocardial involvement in tuberculosis is exceedingly rare but there are reports it can present with sudden cardiac death, atrioventricular block, ventricular arrhythmias or congestive cardiac failure. We report the case of a 33-year-old male, of South Asian descent, who presented with chest pain, shortness of breath and an abnormal ECG. The patient had no significant past medical history and coronary angiogram showed no evidence of coronary artery disease. Of note, the patient had recently been discharged from a local district hospital with an episode of myocarditis...
September 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/28802407/immunological-characterization-of-latent-tuberculosis-infection-in-a-low-endemic-country
#9
Roelof A de Paus, Krista E van Meijgaarden, Corine Prins, Margreet H Kamphorst, Sandra M Arend, Tom H M Ottenhoff, Simone A Joosten
The diagnosis of a latent tuberculosis infection (LTBI) is based on detection of immunity against Mycobacterium tuberculosis (Mtb). The tuberculin skin test (TST), the Quantiferon (QFT) and a prolonged lymphocyte stimulation test using either ESAT-6/CFP-10 (LST-EC) or PPD (LST-PPD) were evaluated in a cohort of 495 individuals, suspected to have LTBI, in a low endemic country. While the TST and LST-PPD were both positive in the majority (75%) of individuals, only one third responded in the LST-EC and in the QFT...
September 2017: Tuberculosis
https://www.readbyqxmd.com/read/28802403/analytical-evaluation-of-quantiferon-plus-and-quantiferon-gold-in-tube-assays-in-subjects-with-or-without-tuberculosis
#10
E Petruccioli, V Vanini, T Chiacchio, G Cuzzi, D M Cirillo, F Palmieri, G Ippolito, D Goletti
The QuantiFERON-TB Gold Plus (QFT-Plus) represents the new QuantiFERON-TB Gold In-tube (QFT-GIT) to identify latent tuberculosis infection (LTBI). The main differences is the addition of a new tube containing shorter peptides stimulating CD8 T-cells. Aim of this study is to evaluate the accuracy of QFT-Plus compared with QFT-GIT in a cross sectional study of individuals with or without tuberculosis (TB). We enrolled 179 participants: 19 healthy donors, 58 LTBI, 33 cured TB and 69 active TB. QFT-Plus and QFT-GIT were performed...
September 2017: Tuberculosis
https://www.readbyqxmd.com/read/28794092/optic-disc-swelling-in-a-patient-with-tuberculous-meningitis-a-diagnostic-challenge
#11
Hanis Zuhaimy, Sue Ngein Leow, Suresh K Vasudevan
We discuss the diagnostic challenge in an adult patient presented with purely ocular symptoms diagnosed with tuberculous meningitis (TBM). A 38-year-old woman presented with bilateral painless blurring of vision. There were bilateral sixth cranial nerve palsy and bilateral optic disc swelling. Optic nerve function tests were normal. Patient was lucid with no signs of meningism. Brain imaging were normal. She had a positive Mantoux test, high erythrocyte sedimentation rate but no clinical evidence of active pulmonary tuberculosis infection...
August 9, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28763239/detecting-new-mycobacterium-tuberculosis-infection-time-for-a-more-nuanced-interpretation-of-quantiferon-conversions
#12
Niaz Banaei, Madhukar Pai
No abstract text is available yet for this article.
August 1, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28759425/managing-cutaneous-tuberculosis-a-case-report
#13
Bettina M Brown-Gallardo
Tuberculosis (TB) continues to be a prevalent disease worldwide; an estimated one third of the world's population is infected and 2015 data from the World Health Organization show 10 million people had an active infection. Although TB often is cited as a disease that most commonly occurs in underdeveloped countries, the evolution of drug-resistant forms of TB and infection sensitivity of immunocompromised individuals have made this disease a focal point for indus- trialized countries as well. When TB is spread, it commonly affects the lungs, but it can infect any organ of the body...
July 2017: Ostomy/wound Management
https://www.readbyqxmd.com/read/28751410/evaluating-17%C3%A2-years-of-latent-tuberculosis-infection-screening-in-north-west-england-a-retrospective-cohort-study%C3%A2-of%C3%A2-reactivation
#14
Dominik Zenner, Miranda G Loutet, Ross Harris, Stephen Wilson, L Peter Ormerod
Approximately 72% of tuberculosis (TB) cases in England occur among non-UK born individuals, mostly as a result of reactivation of latent TB infection (LTBI). Programmatic LTBI screening is a key intervention of the TB strategy for England. This article reviews the results of a long-standing LTBI screening initiative in England.A retrospective cohort was created through probabilistic linkage between LTBI screening data and national TB case notifications. Screened persons were followed until they died, became a case, emigrated or until cohort-end...
July 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28751171/use-of-ifn-%C3%AE-and-ip-10-detection-in-the-diagnosis-of-latent-tuberculosis-infection-in-patients-with-inflammatory-rheumatic-diseases
#15
Raquel Villar-Hernández, Irene Latorre, Sonia Mínguez, Jéssica Díaz, Esther García-García, Beatriz Muriel-Moreno, Alicia Lacoma, Cristina Prat, Alex Olivé, Morten Ruhwald, Lourdes Mateo, José Domínguez
OBJECTIVES: Biologic agents are used against rheumatic diseases, however, they increase the risk of developing severe infections and diseases such as tuberculosis. We aimed to determine the benefits of IP-10 detection to diagnose latent tuberculosis infection (LTBI) in patients with inflammatory rheumatic diseases on different immunosuppressive drug regimens, and compare these results with IFN-γ detection. MATERIALS AND METHODS: We included 64 patients with inflammatory rheumatic diseases...
July 25, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28748193/infliximab-therapy-leading-to-pulmonary-tuberculosis-in-a-patient-with-negative-interferon-%C3%AE-release-assay-igra-based-quantiferon-gold-test
#16
Soni Parita, Kumar Vivek, Kamholz Stephan, Pascal William, Kupfer Yizhak
Infliximab therapy is associated with higher rates of active tuberculosis (TB), particularly extrapulmonary and disseminated forms with unusual symptoms. We report the case of a 66-year-old man with Crohn's disease who developed TB mimicking lung cancer on imaging. He presented with cough and fever of 2 weeks' duration shortly after starting infliximab. Computed tomography of the chest revealed a 7.0 × 3.2 cm(2) pleural-based mass, highly suspicious for malignancy. Histopathological examination confirmed the diagnosis of TB...
July 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28737960/optimization-and-interpretation-of-serial-quantiferon-testing-to-measure-acquisition-of-mycobacterium-tuberculosis-infection
#17
Elisa Nemes, Virginie Rozot, Hennie Geldenhuys, Nicole Bilek, Simbarashe Mabwe, Deborah Abrahams, Lebohang Makhethe, Mzwandile Erasmus, Alana Keyser, Asma Toefy, Yolundi Cloete, Frances Ratangee, Thomas Blauenfeldt, Morten Ruhwald, Gerhard Walzl, Bronwyn Smith, Andre G Loxton, Willem A Hanekom, Jason R Andrews, Maria D Lempicki, Ruth Ellis, Ann M Ginsberg, Mark Hatherill, Thomas J Scriba
RATIONALE: Conversion from a negative to positive QuantiFERON-TB test is indicative of Mycobacterium tuberculosis (Mtb) infection, which predisposes individuals to tuberculosis disease. Interpretation of serial tests is confounded by immunological and technical variability. OBJECTIVES: To improve the consistency of serial QuantiFERON-TB testing algorithms and provide a data-driven definition of conversion. METHODS: Sources of QuantiFERON-TB variability were assessed, and optimal procedures were identified...
September 1, 2017: American Journal of Respiratory and Critical Care Medicine
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
#18
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
#19
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
#20
(no author information available yet)
No abstract text is available yet for this article.
July 13, 2017: Infectious Diseases
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