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Clinical and immunological differences between asymptomatic HDM-sensitized and HDM-allergic rhinitis patients [Elektronski vir]Zidarn, Mihaela ...Background: Confirmation of the clinical relevance of sensitisation is important for the diagnosis of allergic rhinitis. Objective: To investigate the usefulness of an in vitro basophil activation ... test and component-resolved diagnosis in distinguishing between symptomatic allergic rhinitis patients and asymptomatic sensitization to house dust mites (HDMs). Methods: Thirty-six subjects with a positive skin prick test (SPT) for HDM were divided into a symptomatic (n=17) and an asymptomatic (n=19) group on the basis of their clinical history and a nasal provocation test. A basophil CD63 response to in vitro stimulation with Dermatophagoides pteronyssinus whole allergen extract and the IgE reactivity profiles for Der p 1, 2, 4, 5, 7, 10, 11, 14, 15, 18, 21, 23 were evaluated. Serum IgE and IgG specific to D. pteronyssinus whole allergen extract and total IgE were measured. Results: There were no statistically significant differences in the levels of IgE (IgE levels were higher in symptomatic patients with P=0.055) and IgG specific to D. pteronyssinus and total IgE. Symptomatic patients showed a lower threshold for in vitro basophil activation (3.33 ng/mL versus 33.3 ng/mL), a higher area under the curve (AUC) of basophil activation (171 vs. 127) (P=0.017), a higher response to positive control with anti-Fc[epsilon]RI stimulation (97% vs. 79%) (P<0.001), a recognition of more HDM allergens (4 vs. 2), and more frequent sensitization to rDer p 7 (P=0.016) and rDer p 23 compared to asymptomatic subjects (P=0.018). There was a positive correlation (r=0.63; P<0.001) between the number of recognised allergens and the AUC of basophil activation. Conclusion and clinical relevance: In the subjects studied the differences in the basophil response to D. pteronyssinus allergen extract, number of recognized HDM allergens and reactivity to rDer p 7 and rDer p 23 distinguish symptomatic from asymptomatic HDM sensitisation better than SPT or allergen extract specific IgE. Information regarding the clinical relevance of sensitization is important for the prescription of allergen-specific immunotherapy.Vir: Clinical & experimental allergy [Elektronski vir]. - ISSN 1365-2222 (Vol. 49, iss. 6, Jun. 2019, str. 808-818)Vrsta gradiva - e-članek ; neleposlovje za odrasleLeto - 2019Jezik - angleškiCOBISS.SI-ID - 2048447601
Avtor
Zidarn, Mihaela |
Robič, Maša |
Krivec, Anja, štud. medicine |
Šilar, Mira |
Resch, Yvonne |
Vrtala, Susanne |
Kopač, Peter, 1979- |
Bajrović, Nisera |
Valenta, Rudolf, 1963- |
Korošec, Peter, 1970-
Teme
Allergy and immunology |
Diagnosis |
Rhinitis, allergic |
Basophils |
Mites |
Dermatophagoides pteronyssinus |
Immunotherapy |
Immunoglobulin E |
Alergija in imunologija |
diagnostika |
Alergijski rinitis |
Bazofilci |
Pršice |
Dermatophagoides pteronyssinus |
Imunoterapija |
Imunoglobulin E |
basophil activation |
basophil activation test |
CD63 |
house dust mite |
IgE |
aktivacija bazoflicev |
test aktivacije bazofilcev |
CD63 |
pršice |
IgE
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Zidarn, Mihaela | 25317 |
Robič, Maša | 37530 |
Krivec, Anja, štud. medicine | ![]() |
Šilar, Mira | 25331 |
Resch, Yvonne | ![]() |
Vrtala, Susanne | ![]() |
Kopač, Peter, 1979- | 30983 |
Bajrović, Nisera | 25336 |
Valenta, Rudolf, 1963- | ![]() |
Korošec, Peter, 1970- | 22807 |
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