Open Access
CC BY 4.0 · Int Arch Otorhinolaryngol 2025; 29(03): s00451809644
DOI: 10.1055/s-0045-1809644
Original Research

The Effect of Oleuropein on the Treatment of Allergic Rhinitis

1   Department of Otorhinolaryngology, School of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
,
Basak Büyük
2   Department of Histology and Embryology, School of Medicine, İzmir Democracy University, İzmir, Turkey
,
Hüseyin Avni Eroglu
3   Department of Physiology, School of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
,
Hilal Sehitoglu
4   Department of Biochemistry, School of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
› Author Affiliations

Funding The authors declare that the present study was conducted with the support of Türkiye Bilim Teknik ve Araştırma Kurumu (TÜBĪTAK) 3001 project (no: 317S048).
Preview

Abstract

Introduction

Allergic rhinitis is a disease that negatively affects social and work life and sometimes does not respond to many treatments. Therefore, new treatments are needed. For the prevention and treatment of allergies, oleuropein has been emphasized, and positive results have been shown in the literature.

Objective

To investigate the effects of general and topical oleuropein during the allergic rhinitis period and the histopathological changes in the nasal mucosa compared with steroid nasal sprays and control group in rats.

Methods

We developed an experimental animal model with 44 rats divided into 6 groups. Except for the control group, the allergic rhinitis in the other five groups was created with ovalbumin. As treatment, saline was administered to group 3, steroids, to group 4, oleuropein, to group 5, and steroids and oleuropein were administered to group 6. The effects of the drugs were examined histopathologically and the levels of immunoglobulin E (IgE) in the blood were compared.

Results

Considering the symptomatic findings in rats, we could observe that allergic rhinitis occurred. Based on the IgE levels and histopathological findings, we have statistically shown that oleuropein may be effective in treatment of allergy rhinitis.

Conclusion

Oleuropein has been shown to be useful in the treatment of allergic rhinitis in an animal model, but further studies are needed before it is introduced into the medical practice.

Ethical Consideration

The institutional Animal Ethics Committee approved the present study (2017/08-11; date: August 25, 2017).




Publication History

Received: 22 May 2024

Accepted: 24 March 2025

Article published online:
20 August 2025

© 2025. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution 4.0 International License, permitting copying and reproduction so long as the original work is given appropriate credit (https://creativecommons.org/licenses/by/4.0/)

Thieme Revinter Publicações Ltda.
Rua Rego Freitas, 175, loja 1, República, São Paulo, SP, CEP 01220-010, Brazil

Bibliographical Record
Özge Çaglar Cil, Basak Büyük, Hüseyin Avni Eroglu, Hilal Sehitoglu. The Effect of Oleuropein on the Treatment of Allergic Rhinitis. Int Arch Otorhinolaryngol 2025; 29: s00451809644.
DOI: 10.1055/s-0045-1809644