Annals of Thoracic Medicine Official publication of the Saudi Thoracic Society, affiliated to King Saud University
 
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ORIGINAL ARTICLE
Year : 2012  |  Volume : 7  |  Issue : 2  |  Page : 74-77

Interleukin-1 receptor antagonist gene polymorphism in patients with multidrug-resistant Acinetobacter baumannii-associated pneumonia


1 Department of Pulmonary, Antai Tian, Sheng Memorial Hospital, Taiwan
2 Department of Biotechnology, Yung-Ta Institute of Technology and Commerce, Pingtung, Taiwan
3 Asia Pacific Biotech Developing, Inc., Kaohsiung, Taiwan

Correspondence Address:
Wen-Tung Wu
316 Chung Shan Road Lin Ti Tsun Lin Lo Pingtung, 909
Taiwan
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DOI: 10.4103/1817-1737.94523

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Objective: Multidrug-resistant Acinetobacter baumannii (MDRAB)-associated pneumonia has been a common disease and a therapeutic problem in hospitals. Interleukin-1 receptor antagonist (IL-1ra) has been considered a required role for host immune defense in pneumonia disease. The aim of this study was to investigate whether the variable nucleotide tandem repeat polymorphism of the IL-1ra gene was associated with MDRAB-related pneumonia. Methods: Sixty-six pneumonia patients were enrolled in the study: 36 subjects had MDRAB-related pneumonia and 30 controls had non-MDRAB pneumonia. Polymerase chain reaction, restriction fragment length polymorphism, and agarose gel electrophoresis techniques were used to determine the IL-1ra genotype. Results: The frequencies of the IL-1ra genotype in the MDRAB-related pneumonia cases were A1/A1, 0.889 and A1/A2, 0.111; the frequencies of the IL-1ra genotype in the controls were A1/A1, 0.333 and A1/A2, 0.667. A statistically significant difference was determined (P < 0.05). We also observed an increase in the frequency of IL-1ra A1 allele in the MDRAB-related pneumonia group. A statistically significant difference was determined (P<0.05). Conclusions: We suggested that IL-1ra polymorphism was associated with the risk of MDRAB-related pneumonia.


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