Results 41 to 50 of about 41,796 (143)

Interferon-Gamma Release Assay in a Patient with Tuberculosis Verrucosa Cutis [PDF]

Annals of Dermatology, 2015
Dear Editor: A 62-year-old man presented with an annular plaque that had been present for 35 years on his left inner thigh. Physical examination revealed a 7×8 cm annular erythematous plaque with central clearing and hyperpigmentation (Fig. 1). We suspected tinea cruris, granuloma annulare, and erythema annulare centrifugum, and performed a 4-mm ...
Kim, Geon, Jeong, Young-In, Huh, Joon Won, Kim, Eun-Jung, Joh, Ok-Ja   +4 more
openaire   +2 more sources

Clinical utility of QuantiFERON TB Gold Test in the diagnosis of latent tuberculosis infections

Microbiologia Medica, 2010
Introduction: Early diagnosis of latent tuberculosis infection can avoid a progression to active tuberculosis.The interferon gamma (IFN-γ) production measured by the new interferon-gamma release assays (IGRAs) can be used to identify subjects with ...
Salvatore Nisticò, Giuseppe Ivan Potente, Maria Teresa Cerminara, Lavinia Scuro, Angela Luciano   +4 more
doaj   +1 more source

Interferon Gamma Release Assays (IGRA) in the Diagnosis of Active Pulmonary Tuberculosis

Journal of High Institute of Public Health, 2014
Background: Tuberculosis is one of the deadliest diseases over the world. Diagnosis of pulmonary TB depends on combination various parameters. IGRA measure T cell release of IFN-γ in response to M.TB antigen.
Mona K. EL-Deeb, Hatem A. EL Malwany, Yehia M. Khalil, Saher T. Mourad   +3 more
doaj   +1 more source

Latent tuberculosis screening before kidney transplantation in the South of Brazil

Brazilian Journal of Nephrology, 2021
Background: Tuberculosis (TB) is a prevalent infection after kidney transplantation (KT) in high-burden countries. Latent tuberculosis infection (LTBI) screening includes previous TB history, chest radiograph findings, and tuberculin test (TST) and/or ...
Gisele Meinerz, Cynthia Keitel da Silva, Damaris Mikaela Balin Dorsdt, Julia Bertoni Adames, Julio Pasquali Andrade, Pedro Enrico Ventura, Alexandre de Almeida Monteiro, Alessandro Comarú Pasqualotto, Valter Duro Garcia, Elizete Keitel   +9 more
doaj   +2 more sources

Diagnosis of latent tuberculosis infection among HIV discordant partners using interferon gamma release assays

BMC Infectious Diseases, 2011
Background There is limited data on the effect of HIV status and CD4 counts on performance of Interferon-g Release assays (IGRAs) for diagnosis of latent tuberculosis infection (LTBI).
Mwananyanda Lawrence, Kilembe William, Wendt Joyanna, Mutemba Charles, Gonzalez-Diaz Esteban, Talati Naasha J, Chomba Elwyn, Allen Susan, del Rio Carlos, Blumberg Henry M   +9 more
doaj   +1 more source

Potential Role for Mycobacterium tuberculosis Specific IL-2 and IFN-γ Responses in Discriminating between Latent Infection and Active Disease after Long-Term Stimulation. [PDF]

PLoS ONE, 2016
Interferon gamma release assays (IGRAs) could accurately diagnose Mycobacterium tuberculosis (M.tuberculosis) infection. However, these assays do not discriminate between latent tuberculosis infection (LTBI) and active tuberculosis disease (ATB). Here, a
Qin Sun, Wei Wei, Wei Sha
doaj   +1 more source

Application and Interpretation of an Interferon-Gamma Release Assay: Results of an Audit in a Canadian Centre

Canadian Journal of Infectious Diseases and Medical Microbiology, 2012
BACKGROUND: Interferon-gamma release assays (IGRAs) are newly approved for diagnosing latent tuberculosis infection (LTBI). An internal audit was conducted to review the use of a newly implemented IGRA at the Hôpital du Sacré-Coeur de Montréal (Montréal,
Sopharat Vat, Marc Ghannoum, Pierre Laflamme, Mario Dugas, Manon Labrecque, Valéry Lavergne   +5 more
doaj   +1 more source

The Use of Interferon Gamma Release Assays in the Diagnosis of Active Tuberculosis [PDF]

Tuberculosis Research and Treatment, 2012
Interferon gamma release assays (IGRAs) arein vitroimmunologic diagnostic tests used to identifyMycobacterium tuberculosisinfection. They cannot differentiate between latent and active infections. The cutoff suggested by the manufacturer is 0.35 IU/mL for latent tuberculosis. As IGRA tests were recently approved for the differential diagnosis of active
Vesenbeckh, Silvan M., Schönfeld, Nicolas, Mauch, Harald, Bergmann, Thorsten, Wagner, Sonja, Bauer, Torsten T., Rüssmann, Holger   +6 more
openaire   +2 more sources

INF-gamma Release ELISpot Assay

Bio-Protocol, 2012
IFN-γ (Interferon-gamma) is produced mainly by activated T cells and NK cells. Production of IFN-γ (Interferon-gamma) by helper T cells as well as cytotoxic T cells is a hallmark of the TH1-type phenotype, thus, high-level production of IFN-γ (Interferon-
Huagang Zhang
doaj   +1 more source

Short-Term Reproducibility of a Commercial Interferon Gamma Release Assay [PDF]

Clinical and Vaccine Immunology, 2009
ABSTRACT Interferon gamma release assays (IGRAs) have been shown to be sensitive and highly specific for the detection of immune memory against Mycobacterium tuberculosis . Little is known about the reproducibility and within-person variability of these assays. Various aspects of short-term reproducibility
A K, Detjen, L, Loebenberg, H M S, Grewal, K, Stanley, A, Gutschmidt, C, Kruger, N, Du Plessis, M, Kidd, N, Beyers, G, Walzl, A C, Hesseling   +10 more
openaire   +2 more sources