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Pharaoh Ant (Monomorium pharaonis): Newly Identified Important Inhalant Allergens in Bronchial Asthma

 Cheol-Woo Kim  ;  Deok-In Kim  ;  Soo-Young Choi  ;  Jung-Won Park  ;  Chein-Soo Hong 
 Journal of Korean Medical Science, Vol.20(3) : 390-396, 2005 
Journal Title
 Journal of Korean Medical Science 
Issue Date
The nonstinging house ant, Monomorium pharaonis (pharaoh ant), was recently identified as a cause of respiratory allergy. This study was performed to evaluate the extent of sensitization to pharaoh ant, and its clinical significance in asthmatic patients. We carried out skin prick tests in 318 patients with asthma. Specific IgE (sIgE) to pharaoh ant was measured by ELISA, and cross-reactivity was evaluated by ELISA inhibition tests. Bronchial provocation testing was performed using pharaoh ant extracts. Fifty-eight (18.2%) of 318 patients showed positive skin responses to pharaoh ant, and 25 (7.9%) had an isolated response to pharaoh ant. Positive skin responses to pharaoh ant were significantly higher among patients with non-atopic asthma than among those with atopic asthma (26.0% vs. 14.9%, p<0.05). There was significant correlation between sIgE level and skin responses to pharaoh ant (rho=0.552, p<0.001). The ELISA inhibition tests indicated that pharaoh ant allergens had various pattern of cross-reactivity to house dust mites and cockroaches. Bronchial provocation tests to pharaoh ant were conducted for 9 patients, and eight showed typical asthmatic reactions. In conclusion, pharaoh ant is an important source of aeroallergens, and it should be included in the skin test battery for screening the causative allergens in patients with asthma.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Cheol Woo(김철우)
Park, Jung Won(박중원) ORCID logo https://orcid.org/0000-0003-0249-8749
Hong, Chein Soo(홍천수)
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