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Respir Investig. 2015 Jan;53(1):13-21. doi: 10.1016/j.resinv.2014.08.001. Epub 2014 Sep 29.

Utility of immunological tests for bird-related hypersensitivity pneumonitis.

Author information

1
Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.
2
Department of Respiratory Medicine, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan. Electronic address: miyazaki.pilm@tmd.ac.jp.

Abstract

BACKGROUND:

The reaction of specific antibodies and sensitized lymphocytes to antigens is important in hypersensitivity pneumonitis (HP). However, there are no known studies evaluating the utility of the lymphocyte proliferation test (LPT) or specific antibodies to avian antigens in diagnosing bird-related HP. In this study, we examined the sensitivity and specificity of these two tests.

METHODS:

Patients with acute bird-related HP (n=10), chronic bird-related HP (n=35), acute summer-type HP (n=14), and other interstitial pneumonia (IP) (n=76) were evaluated. The optimal cutoff values were determined by receiver operating curve (ROC) analyses of specific antibodies in serum and bronchoalveolar lavage fluid (BALF), and by conducting the LPT on mononuclear cells in peripheral blood and BALF.

RESULTS:

The sensitivity and specificity of the antibodies were 80-100% and 92-100% in acute bird-related HP, and 26-79% and 73-93% in chronic bird-related HP, respectively. The sensitivity and specificity of the LPT were 50-100% and 100% in acute bird-related HP, and 46% and 91% in chronic bird-related HP, respectively.

CONCLUSIONS:

Specific antibodies and the LPT are quite useful for diagnosing acute bird-related HP. The presence of specific antibodies in BALF and the results of LPT with peripheral blood mononuclear cells are particularly useful for diagnosing chronic bird-related HP.

KEYWORDS:

Hypersensitivity pneumonitis; Lymphocyte proliferation test; Pigeon; Specific antibody

PMID:
25542599
DOI:
10.1016/j.resinv.2014.08.001
[Indexed for MEDLINE]

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