Phenotyping peach-allergic patients sensitized to lipid transfer protein and analysing severity biomarkers.
anaphylaxis
food allergy
nsLTP
plant-food allergens
profilin
Journal
Allergy
ISSN: 1398-9995
Titre abrégé: Allergy
Pays: Denmark
ID NLM: 7804028
Informations de publication
Date de publication:
12 2020
12 2020
Historique:
received:
27
01
2020
revised:
10
05
2020
accepted:
18
05
2020
pubmed:
15
6
2020
medline:
15
5
2021
entrez:
15
6
2020
Statut:
ppublish
Résumé
Patients with peach allergy due to nsLTP sensitization constitute a heterogeneous group in terms of sensitization profile and severity. This could be due to the presence of additional allergies to pollens. The aim of this study was to analyse the clinical characteristics, sensitization profile and severity of reactions in peach-allergic patients sensitized to nsLTP from two Mediterranean areas with different pollen exposure. Patients with diagnosis of LTP allergy from the Allergy Unit of Hospital Regional Universitario de Malaga (HRUM) and Hospital Clinic de Barcelona (HCB) were prospectively included and classified into two groups; (a) LTP-monoallergic: those that presented reaction only with peach and (b) LTP-Allergy: those that presented reaction with peach and at least another plant-food containing LTP. A total of 252 patients were included, 235 (93.2%) had LTP-syndrome and 17 (6.8%) were LTP-monoallergic. We found a higher percentage of anaphylaxis and delayed onset of symptoms in the LTP-monoallergic group (P = .02 and P = .04, respectively). Moreover, anaphylaxis was less frequent in patients with profilin sensitization (P = .03). The comparison of patients' data from HRUM with data from HCB showed differences in sensitization to olive tree pollen and profilin (P = .01 and P = .001, respectively). This study was undertaken to characterize two large group of subjects from to two regions with differing exposures to pollen. We found that more than 90% of peach-allergic patients in both populations evolved to LTP-Allergy and showed an early onset. Profilin sensitization could be more useful as a severity biomarker than the number of nsLTP, aeroallergen sensitizations or sIgE levels. This could provide clues regarding sensitization and severity patterns that might be relevant in other geographical areas.
Sections du résumé
BACKGROUND
Patients with peach allergy due to nsLTP sensitization constitute a heterogeneous group in terms of sensitization profile and severity. This could be due to the presence of additional allergies to pollens. The aim of this study was to analyse the clinical characteristics, sensitization profile and severity of reactions in peach-allergic patients sensitized to nsLTP from two Mediterranean areas with different pollen exposure.
METHODS
Patients with diagnosis of LTP allergy from the Allergy Unit of Hospital Regional Universitario de Malaga (HRUM) and Hospital Clinic de Barcelona (HCB) were prospectively included and classified into two groups; (a) LTP-monoallergic: those that presented reaction only with peach and (b) LTP-Allergy: those that presented reaction with peach and at least another plant-food containing LTP.
RESULTS
A total of 252 patients were included, 235 (93.2%) had LTP-syndrome and 17 (6.8%) were LTP-monoallergic. We found a higher percentage of anaphylaxis and delayed onset of symptoms in the LTP-monoallergic group (P = .02 and P = .04, respectively). Moreover, anaphylaxis was less frequent in patients with profilin sensitization (P = .03). The comparison of patients' data from HRUM with data from HCB showed differences in sensitization to olive tree pollen and profilin (P = .01 and P = .001, respectively).
CONCLUSION
This study was undertaken to characterize two large group of subjects from to two regions with differing exposures to pollen. We found that more than 90% of peach-allergic patients in both populations evolved to LTP-Allergy and showed an early onset. Profilin sensitization could be more useful as a severity biomarker than the number of nsLTP, aeroallergen sensitizations or sIgE levels. This could provide clues regarding sensitization and severity patterns that might be relevant in other geographical areas.
Substances chimiques
Allergens
0
Antigens, Plant
0
Biomarkers
0
Carrier Proteins
0
Plant Proteins
0
lipid transfer protein
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
3228-3236Informations de copyright
© 2020 EAACI and John Wiley and Sons A/S. Published by John Wiley and Sons Ltd.
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