Abstract:
BACKGROUND:It is important to understand that allergic rhinitis, whether seasonal or perennial, may be difficult to distinguish clinically from the nonallergic forms of rhinitis. OBJECTIVE:This study aimed to investigate the presence of local allergic rhinitis (LAR) in children who have allergic rhinitis symptoms in the absence of skin test positivity and specific IgE by performing a nasal provocation test (NPT). METHODS:Our study followed a case-controlled, prospective design. Twenty-eight patients and 30 healthy children were included in the study in a pollen-free season. The NPTs with a grass mix, Dermatophagoides pteronyssinus (DP) and D. farinae (DF) allergens were performed with an interval of 1 week. The total symptom score and visual analog scale, nasal eosinophilia and pulmonary function tests were evaluated before and after each NPT. The change to nasal flow and resistance was recorded by anterior rhinomanometry. RESULTS:The symptom frequencies before the NPTs were as follows: nasal congestion 100%; itching 82.1%; rhinorrhea 75% and sneezing 71.4%. The NPT was positive in 7 (25%) patients. In the NPT-positive group there was a statistically significant decrease in nasal flow at the concentrations of 10 and 100 IR/ml for DF (p = 0.026, p = 0.031, respectively). In the NPT-positive group total nasal resistance for DP was increased at the concentrations of 0.1 and 10 IR/ml, and for DF at 10 and 100 IR/ml (p = 0.049, p = 0.041, p = 0.022, p = 0.035, respectively). CONCLUSIONS:We emphasize that the diagnosis of LAR should be taken into consideration by pediatricians and pediatric allergy specialists.
journal_name
Int Arch Allergy Immunoljournal_title
International archives of allergy and immunologyauthors
Duman H,Bostanci I,Ozmen S,Dogru Mdoi
10.1159/000447635subject
Has Abstractpub_date
2016-01-01 00:00:00pages
115-21issue
2eissn
1018-2438issn
1423-0097pii
000447635journal_volume
170pub_type
杂志文章abstract::We isolated a major wheat flour allergen with a molecular weight of 15-kD. The 15-kD allergen was purified from an extract of wheat flour by ammonium sulfate precipitation followed by gel filtration. Using the immunoblot technique, IgE, specifically directed towards the single isolated allergen, was detectable in 50% ...
journal_title:International archives of allergy and immunology
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journal_title:International archives of allergy and immunology
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journal_title:International archives of allergy and immunology
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journal_title:International archives of allergy and immunology
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