PMID- 37668849 OWN - NLM STAT- MEDLINE DCOM- 20231216 LR - 20231216 IS - 1573-2630 (Electronic) IS - 0165-5701 (Linking) VI - 43 IP - 12 DP - 2023 Dec TI - Allergen-specific IgE in the tear fluid of Chinese patients with common allergic conjunctivitis in autumn and winter. PG - 4541-4549 LID - 10.1007/s10792-023-02854-4 [doi] AB - PURPOSE: In this study, we determined the positive rates of allergen-specific immunoglobulin E (IgE) in the tear fluid of Chinese patients with common allergic conjunctivitis (AC) in autumn and winter, compared systemic and ocular allergen tests, and explored the correlation between the numbers and categories of allergens and clinical AC features. METHODS: This cross-sectional study recruited 44 patients with AC (86 eyes). Specific IgEs for allergens common in China (house dust mite, cat/dog dander, mugwort/ragweed pollen, cottonwood/willow/elm pollen, milk, egg whites, soybeans) were measured in collected tears using kits for allergen-specific IgE antibodies. AC signs and symptoms were graded according to severity. RESULTS: Specific IgE in tears was positive in 87.2% of eyes. House dust mite was the most common allergen (86.0%), followed by cat (24.4%) and dog (7.0%) dander; tree and grass pollen accounted for only 4.7% and 2.3%, respectively. Food allergens were not detected. The positive rates of the systemic allergen tests were lower than in tear fluid tests in both eyes, especially for house dust mites (P = 0.000). In patients with more allergens, itching was more severe (P = 0.035), while conjunctival hyperemia was milder (P = 0.002). CONCLUSION: In autumn and winter, the most common AC allergen in Chinese patients was house dust mites. Compared with systemic allergen tests, measuring specific IgE in tears may be a non-invasive method to diagnose and evaluate AC severity, which may be more suitable to reflect the local conditions of ocular surface inflammation due to its high positive rate and convenience. CI - (c) 2023. The Author(s), under exclusive licence to Springer Nature B.V. FAU - Wang, Hongmei AU - Wang H AD - Department of Ophthalmology, Peking University Third Hospital Eye Center, 49 North Garden Rd, Haidian District, Beijing, 100191, People's Republic of China. FAU - Jiang, Xiaodan AU - Jiang X AD - Department of Ophthalmology, Peking University Third Hospital Eye Center, 49 North Garden Rd, Haidian District, Beijing, 100191, People's Republic of China. FAU - Zhang, Pei AU - Zhang P AD - Department of Ophthalmology, Peking University Third Hospital Eye Center, 49 North Garden Rd, Haidian District, Beijing, 100191, People's Republic of China. FAU - Li, Yingyu AU - Li Y AD - Department of Ophthalmology, Peking University Third Hospital Eye Center, 49 North Garden Rd, Haidian District, Beijing, 100191, People's Republic of China. FAU - Wang, Yiren AU - Wang Y AD - Department of Ophthalmology, Peking University Third Hospital Eye Center, 49 North Garden Rd, Haidian District, Beijing, 100191, People's Republic of China. FAU - Li, Xuemin AU - Li X AD - Department of Ophthalmology, Peking University Third Hospital Eye Center, 49 North Garden Rd, Haidian District, Beijing, 100191, People's Republic of China. lxmlxm66@sina.com. LA - eng PT - Journal Article DEP - 20230905 PL - Netherlands TA - Int Ophthalmol JT - International ophthalmology JID - 7904294 RN - 0 (Allergens) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Humans MH - Animals MH - Dogs MH - *Conjunctivitis, Allergic/diagnosis MH - Cross-Sectional Studies MH - Allergens MH - Pollen MH - Immunoglobulin E OTO - NOTNLM OT - Allergens OT - Allergic conjunctivitis OT - Positive rate OT - Specific IgE OT - Tear fluid EDAT- 2023/09/05 12:41 MHDA- 2023/12/17 09:44 CRDT- 2023/09/05 11:17 PHST- 2022/06/15 00:00 [received] PHST- 2023/08/05 00:00 [accepted] PHST- 2023/12/17 09:44 [medline] PHST- 2023/09/05 12:41 [pubmed] PHST- 2023/09/05 11:17 [entrez] AID - 10.1007/s10792-023-02854-4 [pii] AID - 10.1007/s10792-023-02854-4 [doi] PST - ppublish SO - Int Ophthalmol. 2023 Dec;43(12):4541-4549. doi: 10.1007/s10792-023-02854-4. Epub 2023 Sep 5.