4.5 Article

Allergen extract- and component-based diagnostics in children of the ALLIANCE asthma cohort

期刊

CLINICAL AND EXPERIMENTAL ALLERGY
卷 51, 期 10, 页码 1331-1345

出版社

WILEY
DOI: 10.1111/cea.13964

关键词

allergen sIgE; analytical performance; diagnostic performance; in vitro allergy diagnosis; molecular allergology

资金

  1. Universities Giessen and Marburg Lung Center (UGMLC)
  2. German Center for Lung Research (DZL) [82DZL00502/A2, 82DZL002A1]
  3. University Hospital Giebetaen and Marburg (UKGM)
  4. Deutsche Forschungsgemeinschaft (DFG) [SFB 1021, KFO 309, SK 317/1-1, 428518790]
  5. Thermo Fisher Scientific, Sweden
  6. Foundation for Pathobiochemistry and Molecular Diagnostics

向作者/读者索取更多资源

In this study, analytical and diagnostic concordance of three commonly used technologies for sIgE detection among young children was found to be good. Despite differences in positive concordance for common sensitizations, extending the number of allergens did not significantly change the overall performance of the three assay systems. These results suggest that more comprehensive multiplex approaches may not improve the clinical utility of sIgE testing in this age group.
Background Current in vitro allergen-specific IgE (sIgE) detection assays measure IgE against allergen extracts or molecules in a single- or multiplex approach. Direct comparisons of the performance of such assays among young children with common presentations of allergic diseases regardless of sensitization status are largely missing. Objectives The aim of this study was a comparison of the analytical and diagnostic performance for common clinical questions of three commonly used technologies which rely upon different laboratory methodologies among children of the All Age Asthma (ALLIANCE) cohort (clinicaltrials.gov: NCT02496468). Methods Sera from 106 paediatric study participants (mean age 4 years) were assessed for the presence of sIgE by means of the ImmunoCAP (TM) sx1 and fx5 mixes, the ImmunoCAP ISAC (TM) 112 microarray and a Euroline (TM) panel. Results Total and negative concordance was high (>82%->89%), while positive concordance varied considerably (0%-100%) but was also >50% for the most common sensitizations analysed (house dust mite and birch). All three test systems showed good sensitivity and specificity (AUC consistently > 0.7). However, no significant differences with regard to identifying sIgE sensitizations associated with symptoms in children with suspected pollen- or dust-triggered wheeze or presenting with symptoms of allergic rhinoconjunctivitis or food allergy were detected. Extending the number of allergens did not change the similar performance of the three assay systems. Conclusion and Clinical Relevance Among young children, the three sIgE assays showed good analytical and diagnostic concordance. Our results caution that the identification of larger numbers of sensitizations by more comprehensive multiplex approaches may not improve the clinical utility of sIgE testing in this age group.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据