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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Urinary eosinophil-derived neurotoxin is associated with reduced lung function in pediatric asthma.
Pediatr. Allergy Immunol. 35:e14172 (2024)
INTRODUCTION: Eosinophil-derived neurotoxin (EDN) is a biomarker for eosinophilic activation. Urinary (u) EDN may allow non-invasive monitoring of asthma, but clinical recommendations are lacking. We assessed the potential of uEDN as a marker of disease activity in pediatric asthma. METHODS: We assessed urine samples of 371 children from the German ALLIANCE study cohort, from which we had: 169 preschool wheezers (<6 years), 80 asthmatics (≥6 years), and 122 healthy controls using the ImmunoCAP™ EDN Assay. Creatinine (Cr)-adjusted uEDN values were analyzed using correlations, association tests, (non) parametric statistics, multiple linear, and multivariable regression. RESULTS: uEDN/uCr values were higher in atopic versus non-atopic preschool-aged subjects (p = .035) and associated with the sum of allergen-specific IgE in younger (r = 0.24, p = .003), and older subjects (r = 0.23, p = .043). uEDN/uCr was marginally a good determinant for atopy (p = .078, for subjects aged <6 years, and p = .058 for subjects ≥6 years). Children with the T2-high phenotype had higher uEDN/uCr (p < .001) versus T2-low-irrespective of using uEDN/uCr or blood eosinophils in combination to allergen sIgE for disease phenotyping. uEDN/uCr significantly correlated with reduced lung function among asthmatics (FEV1 z-scores: r = -0.30, p = .007, and FEV1/FVC z-scores: r = -0.24, p = .038). Using multivariable modeling, uEDN/uCr was an independent determinant of FEV1 (p = .038), and to a lesser extent, FEV1/FVC (p = .080). CONCLUSIONS: uEDN/uCr may serve as a non-invasive biomarker for clinical features such as lung function in pediatric asthma. We highlight the utility of uEDN/uCr as a biomarker that can be easily assessed using widely available robust diagnostic immunoassays.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
T2‐high Phenotype ; Atopy ; Biomarker ; Children ; Eosinophil‐derived Neurotoxin ; Preschool Wheeze; Children; Diagnosis; Proteins; Edn
ISSN (print) / ISBN
0905-6157
e-ISSN
1399-3038
Zeitschrift
Pediatric Allergy and Immunology
Quellenangaben
Band: 35,
Heft: 6,
Artikelnummer: e14172
Verlag
Wiley
Verlagsort
111 River St, Hoboken 07030-5774, Nj Usa
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Asthma and Allergy Prevention (IAP)
Förderungen
German Research Foundation