Results of patch testing propolis in the European baseline series: A 4‐year retrospective study
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| Format: | Artículo Open Access |
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Wiley
2024
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| _version_ | 1867005429480947712 |
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| author | Gizem Kocabas Norbertus A. Ipenburg Anton de Groot Thomas Rustemeyer |
| author_facet | Gizem Kocabas Norbertus A. Ipenburg Anton de Groot Thomas Rustemeyer Gizem Kocabas Norbertus A. Ipenburg Anton de Groot Thomas Rustemeyer |
| collection | Wiley Open Access |
| contents | Results of patch testing propolis in the European baseline series: A 4‐year retrospective study Gizem Kocabas Norbertus A. Ipenburg Anton de Groot Thomas Rustemeyer Contact Dermatitis AbstractBackgroundPropolis was added to the European baseline series (EBS) in 2019.ObjectivesTo investigate the frequency and relevance of positive patch tests to propolis in the EBS and to study co‐reactivities.Patients and MethodsRetrospective study in patients patch tested between June 2019 and November 2023 in a university hospital in Amsterdam, The Netherlands.ResultsOf 3134 consecutive patients, 299 (9.5%) had a positive reaction to propolis 10% pet. Only nine reactions (3%) were judged to be clinically relevant. There were significant co‐reactivities to Myroxylon pereirae resin (balsam of Peru), colophonium, fragrance mixes 1 and 2, and to limonene and linalool hydroperoxides. A steep increase in rates of positive reactions to propolis was observed from 2020 to 2023. This was highly likely the result of the replacement of Chinese propolis with Brazilian propolis by the manufacturer.ConclusionsPositive patch tests for propolis are very frequent in Amsterdam, but only a few of these reactions are relevant. Most are probably (pseudo‐)cross‐reactions in patients with fragrance allergies. Propolis in the EBS has very limited value for dermatologists and patients in The Netherlands. Changes in patch test materials should be provided to all users to avoid misinterpretation of patch test results. 10.1111/cod.14678 http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| doi_str_mv | 10.1111/cod.14678 |
| format | Artículo Open Access |
| id | wiley_oa_10_1111_cod_14678 |
| institution | Wiley Open Access |
| license_str_mv | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| publishDate | 2024 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Results of patch testing propolis in the European baseline series: A 4‐year retrospective study Gizem Kocabas Norbertus A. Ipenburg Anton de Groot Thomas Rustemeyer Contact Dermatitis Results of patch testing propolis in the European baseline series: A 4‐year retrospective study Gizem Kocabas Norbertus A. Ipenburg Anton de Groot Thomas Rustemeyer Contact Dermatitis AbstractBackgroundPropolis was added to the European baseline series (EBS) in 2019.ObjectivesTo investigate the frequency and relevance of positive patch tests to propolis in the EBS and to study co‐reactivities.Patients and MethodsRetrospective study in patients patch tested between June 2019 and November 2023 in a university hospital in Amsterdam, The Netherlands.ResultsOf 3134 consecutive patients, 299 (9.5%) had a positive reaction to propolis 10% pet. Only nine reactions (3%) were judged to be clinically relevant. There were significant co‐reactivities to Myroxylon pereirae resin (balsam of Peru), colophonium, fragrance mixes 1 and 2, and to limonene and linalool hydroperoxides. A steep increase in rates of positive reactions to propolis was observed from 2020 to 2023. This was highly likely the result of the replacement of Chinese propolis with Brazilian propolis by the manufacturer.ConclusionsPositive patch tests for propolis are very frequent in Amsterdam, but only a few of these reactions are relevant. Most are probably (pseudo‐)cross‐reactions in patients with fragrance allergies. Propolis in the EBS has very limited value for dermatologists and patients in The Netherlands. Changes in patch test materials should be provided to all users to avoid misinterpretation of patch test results. 10.1111/cod.14678 http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| title | Results of patch testing propolis in the European baseline series: A 4‐year retrospective study |
| topic | Contact Dermatitis |
| url | https://onlinelibrary.wiley.com/doi/10.1111/cod.14678 |