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Published on: April 9, 2012
Use of the QuantiFERON-TB Gold test in Japanese patients with sarcoidosis
Naoki Inui1, Takafumi Suda, Kingo Chida
1The Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Hamamatsu 431-3192, Japan. inui@hama-med.ac.jp
Background And Objective:
Mycobacterium tuberculosis has been proposed as a candidate agent for the cause of sarcoidosis. The QuantiFERON-TB Gold test has a higher specificity for detecting M. tuberculosis infection than the conventional tuberculin skin test. This study aimed to investigate the rate of positive QuantiFERON-TB Gold results in Japanese sarcoidosis patients.
Patients And Methods:
The QuantiFERON-TB Gold test, an enzyme-linked immunosorbent assay, was used to assess the levels of interferon-gamma resulting from immune responses to M. tuberculosis-specific antigens, namely early secretory antigen target 6 and culture filtrate protein 10, in 90 Japanese sarcoidosis patients.
Results:
The QuantiFERON-TB Gold result was positive in 3 of the 90 patients tested.
Conclusion:
The positivity rate of QuantiFERON-TB Gold was 3.3% in Japanese sarcoidosis patients.
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