PMID- 33591429 OWN - NLM STAT- MEDLINE DCOM- 20211123 LR - 20211123 IS - 1435-5922 (Electronic) IS - 0944-1174 (Linking) VI - 56 IP - 5 DP - 2021 May TI - Classification of patients with esophageal eosinophilia by patterns of sensitization revealed by a diagnostic assay for multiple allergen-specific IgEs. PG - 422-433 LID - 10.1007/s00535-021-01766-3 [doi] AB - BACKGROUND: Eosinophilic esophagitis (EoE) is considered to be an immunoglobulin E (IgE)-mediated allergic disorder. Our goal was to examine IgE-mediated allergic sensitization patterns in patients with esophageal eosinophilia (EE). METHODS: We enrolled subjects with EE who underwent evaluation with a diagnostic panel to document multiple allergen-specific IgEs. Statistically significant groups were identified by cluster analysis. We also defined allergens based on their characteristics including outdoor, indoor, plant, and animal allergens. RESULTS: We classified patients with EE into 3 distinct groups, including cluster 1 (n = 62) who were minimally sensitized to most allergens except pollen and house dust, cluster 2 (n = 30) who were hypersensitized to outdoor and plant allergens, and cluster 3 (n = 15) who were hypersensitized to most allergens, most notably to indoor and animal allergens. Dysphagia reported among those in clusters 1, 2, and 3 at 35.5%, 46.7%, and 73.3%, respectively, (p = 0.028) and EoE endoscopic reference scores (EREFS) at 3.0, 6.0, and 8.0, respectively, (p < 0.001) differed significantly between the 3 clusters. Those in cluster 3 had a significantly higher prevalence of dysphagia (35.5% vs. 73.3%, p = 0.030), and higher EREFS with respect to rings (0.3 vs. 0.9, p = 0.003) and strictures (0.0 vs. 0.13, p = 0.011) compared to those in cluster 1. CONCLUSIONS: IgE-mediated allergic sensitization patterns are associated with clinical features of patients with EE. Use of a diagnostic panel that detects multiple allergen-specific IgEs can help to explain the heterogeneous phenotype of this patient cohort. FAU - Nakata, Akinobu AU - Nakata A AD - Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. FAU - Tanaka, Fumio AU - Tanaka F AUID- ORCID: 0000-0002-9186-1249 AD - Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. m2079981@med.osaka-cu.ac.jp. FAU - Nadatani, Yuji AU - Nadatani Y AD - Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. FAU - Fukunaga, Shusei AU - Fukunaga S AD - Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. FAU - Otani, Koji AU - Otani K AD - Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. FAU - Hosomi, Shuhei AU - Hosomi S AD - Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. FAU - Kamata, Noriko AU - Kamata N AD - Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. FAU - Taira, Koichi AU - Taira K AD - Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. FAU - Nagami, Yasuaki AU - Nagami Y AD - Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. FAU - Watanabe, Toshio AU - Watanabe T AD - Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. FAU - Fujiwara, Yasuhiro AU - Fujiwara Y AD - Department of Gastroenterology, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka, 545-8585, Japan. LA - eng PT - Journal Article PT - Observational Study DEP - 20210216 PL - Japan TA - J Gastroenterol JT - Journal of gastroenterology JID - 9430794 SB - IM MH - Adult MH - Eosinophilic Esophagitis/*classification/*immunology/physiopathology MH - Female MH - Humans MH - Immunization/methods/statistics & numerical data MH - Japan MH - Male MH - Middle Aged MH - Retrospective Studies MH - Statistics, Nonparametric OTO - NOTNLM OT - Allergens OT - Diagnostic panel OT - Eosinophilic esophagitis OT - Immunoglobulin E OT - Sensitization patterns EDAT- 2021/02/17 06:00 MHDA- 2021/11/24 06:00 CRDT- 2021/02/16 12:11 PHST- 2020/06/18 00:00 [received] PHST- 2021/01/25 00:00 [accepted] PHST- 2021/02/17 06:00 [pubmed] PHST- 2021/11/24 06:00 [medline] PHST- 2021/02/16 12:11 [entrez] AID - 10.1007/s00535-021-01766-3 [pii] AID - 10.1007/s00535-021-01766-3 [doi] PST - ppublish SO - J Gastroenterol. 2021 May;56(5):422-433. doi: 10.1007/s00535-021-01766-3. Epub 2021 Feb 16.