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ORIGINAL ARTICLE
Year : 2016  |  Volume : 3  |  Issue : 2  |  Page : 61-67

Immune correlations in chronic child urticaria


1 Lecturer, Department of Preventive Medicine and Interdisciplinarity, Allergology and Clinical Immunology, University of Medicine Grigore T.Popa Iasi, Romania
2 Lecturer, Department of Informatics, Stomathology Faculty, University of Medicine Grigore T.Popa Iasi, Romania
3 Lecturer, Department of Informatics, General Medicine Faculty, University of Medicine Grigore T.Popa Iasi, Romania
4 Assistant, Family Care, Department of Preventive Medicine and Interdisciplinarity, University of Medicine Grigore T.Popa Iasi, Romania

Correspondence Address:
Celina Stafie
Department of Preventive Medicine and Interdisciplinarity, Allergology and Clinical Immunology, University of Medicine Grigore T.Popa Iasi
Romania
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Source of Support: None, Conflict of Interest: None


DOI: 10.5530/ami.2016.2.14

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Introduction: The growing prevalence of urticaria in children over the last decade and the importance of determining the involved pathogenic mechanisms as well as of detecting the etiologic factors are some of the aspects that led to the choice of research topic. Materials and Methods: The early diagnosis and the establishment of the therapeutic and prophylactic conduct in the urticaria are a necessity. There have been evaluated through a retrospective questionnaire, anamnesis and biochemical evaluation a number of 246 children diagnosed with chronic IgE and non IgE mediated urticaria, and prick tested for a wide range of food allergens. The assessment of the intensity of the eruption was done by calculating the urticaria activity score (UAS), both at diagnosis and at subsequent evaluations to assess the response to the treatment. The immunological investigations which were carried out included the determination of the IgA, IgG, IgM, total IgE and specific IgE to food allergens and airborne allergens, as well as the determination of the IgG4-type antibodies to 20 food allergens by means of enzyme immunoassay. The ELISA method was used for dosing the total IgE, while the CLA System Quanti Scan method (Innogenetics, Heiden, Germany) was used for determining the serum-specific IgE for 20 of the most common food allergens and airborne allergens (Innogenetics, Heiden, Germany). Results: Positive statistical correlations have been made with IgE and non IgE mediated reactions, also with IgG4 antibodies. The result of the multivariate analysis shows that the existence of the atopy represents a risk factor which significantly influences the allergic sensitisation (HR = 3.186→95% CI: 2.57-5.96), followed in the order of importance by food diversification before the age of 6.months (HR = 2.157→95% CI: 1.86-5.35), natural feeding before 3.months of age (HR = 1.78→95% CI: 1003-4581) and artificial or mixed feeding (HR = 1.56→95% CI: 1056-3861). Conclusion: There have been reported different correlations between specific IgE and IgG4 with different food allergens and the period of time between the onset and the duration of chronic urticaria. The regression of specific IgE has a predictive value upon the remission of urticaria (AUC=0.557, p=0.447, 95%CI: AUC→0.398–0.717). The logistic regression for analysis of the predictives factors for the regresson of urticaria showed several factors involved:.Speciphic IgE values, compliance for the eliminating diet and treatment, allergic antecedents and the eventual polisensitivisation.


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