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Determinants of venom-specific IgE antibody concentration during long-term wasp venom immunotherapy
BACKGROUND: Venom immunotherapy (VIT) is an effective treatment for subjects with systemic allergic reactions (SR) to Hymenoptera stings, however there are few studies concerning the relevance of the venom specific IgE changes to decide about VIT cessation. We assessed IgE changes during a 5-year VI...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4678606/ https://www.ncbi.nlm.nih.gov/pubmed/26674806 http://dx.doi.org/10.1186/s12948-015-0036-6 |
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author | Pravettoni, Valerio Piantanida, Marta Primavesi, Laura Forti, Stella Pastorello, Elide A. |
author_facet | Pravettoni, Valerio Piantanida, Marta Primavesi, Laura Forti, Stella Pastorello, Elide A. |
author_sort | Pravettoni, Valerio |
collection | PubMed |
description | BACKGROUND: Venom immunotherapy (VIT) is an effective treatment for subjects with systemic allergic reactions (SR) to Hymenoptera stings, however there are few studies concerning the relevance of the venom specific IgE changes to decide about VIT cessation. We assessed IgE changes during a 5-year VIT, in patients stung and protected within the first 3 years (SP 0–3) or in the last 2 years (SP 3–5), and in patients not stung (NoS), to evaluate possible correlations between IgE changes and clinical protection. METHODS: Yellow jacket venom (YJV)-allergic patients who completed 5 years of VIT were retrospectively evaluated. Baseline IgE levels and after the 3rd and the 5th year of VIT were determined; all patients were asked about field stings and SRs. RESULTS: A total of 232 YJV-allergic patients were included and divided into the following groups: 84 NoS, 72 SP 0–3 and 76 SP 3–5. IgE levels decreased during VIT compared to baseline values (χ(2) = 346.029, p < 0.001). Recent vespid stings accounted for significantly higher IgE levels despite clinical protection. IgE levels after 5 years of VIT correlated significantly with Mueller grade (F = 2.778, p = 0.012) and age (F = 6.672, p = 0.002). During follow-up from 1 to 10 years after VIT discontinuation, 35.2 % of the contacted patients reported at least one field sting without SR. CONCLUSIONS: The yellow jacket-VIT temporal stopping criterion of 5 years duration did not result in undetectable IgE levels, despite a long-lasting protection. A mean IgE decrease from 58 to 70 % was observed, and it was less marked in elderly patients or in subjects with higher Mueller grade SR. |
format | Online Article Text |
id | pubmed-4678606 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-46786062015-12-16 Determinants of venom-specific IgE antibody concentration during long-term wasp venom immunotherapy Pravettoni, Valerio Piantanida, Marta Primavesi, Laura Forti, Stella Pastorello, Elide A. Clin Mol Allergy Research BACKGROUND: Venom immunotherapy (VIT) is an effective treatment for subjects with systemic allergic reactions (SR) to Hymenoptera stings, however there are few studies concerning the relevance of the venom specific IgE changes to decide about VIT cessation. We assessed IgE changes during a 5-year VIT, in patients stung and protected within the first 3 years (SP 0–3) or in the last 2 years (SP 3–5), and in patients not stung (NoS), to evaluate possible correlations between IgE changes and clinical protection. METHODS: Yellow jacket venom (YJV)-allergic patients who completed 5 years of VIT were retrospectively evaluated. Baseline IgE levels and after the 3rd and the 5th year of VIT were determined; all patients were asked about field stings and SRs. RESULTS: A total of 232 YJV-allergic patients were included and divided into the following groups: 84 NoS, 72 SP 0–3 and 76 SP 3–5. IgE levels decreased during VIT compared to baseline values (χ(2) = 346.029, p < 0.001). Recent vespid stings accounted for significantly higher IgE levels despite clinical protection. IgE levels after 5 years of VIT correlated significantly with Mueller grade (F = 2.778, p = 0.012) and age (F = 6.672, p = 0.002). During follow-up from 1 to 10 years after VIT discontinuation, 35.2 % of the contacted patients reported at least one field sting without SR. CONCLUSIONS: The yellow jacket-VIT temporal stopping criterion of 5 years duration did not result in undetectable IgE levels, despite a long-lasting protection. A mean IgE decrease from 58 to 70 % was observed, and it was less marked in elderly patients or in subjects with higher Mueller grade SR. BioMed Central 2015-12-15 /pmc/articles/PMC4678606/ /pubmed/26674806 http://dx.doi.org/10.1186/s12948-015-0036-6 Text en © Pravettoni et al. 2015 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
spellingShingle | Research Pravettoni, Valerio Piantanida, Marta Primavesi, Laura Forti, Stella Pastorello, Elide A. Determinants of venom-specific IgE antibody concentration during long-term wasp venom immunotherapy |
title | Determinants of venom-specific IgE antibody concentration during long-term wasp venom immunotherapy |
title_full | Determinants of venom-specific IgE antibody concentration during long-term wasp venom immunotherapy |
title_fullStr | Determinants of venom-specific IgE antibody concentration during long-term wasp venom immunotherapy |
title_full_unstemmed | Determinants of venom-specific IgE antibody concentration during long-term wasp venom immunotherapy |
title_short | Determinants of venom-specific IgE antibody concentration during long-term wasp venom immunotherapy |
title_sort | determinants of venom-specific ige antibody concentration during long-term wasp venom immunotherapy |
topic | Research |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4678606/ https://www.ncbi.nlm.nih.gov/pubmed/26674806 http://dx.doi.org/10.1186/s12948-015-0036-6 |
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