Comprehensive Analysis of Oleuropein: Current Evidence on Pharmacological Activities, Therapeutic Applications and Translational Perspectives
Abstract
The beneficial effects of natural plant polyphenols on human health have been extensively evaluated in numerous scientific studies. Oleuropein, a phenolic compound and ester of elenolic acid and hydroxytyrosol (3,4-dihydroxyphenylethanol), is present in various parts of the olive tree (Olea europaea L.) and has garnered significant scientific interest due to its broad therapeutic profile. An updated and comprehensive review of the existing literature was conducted using databases such as Scopus, PubMed/MEDLINE, Embase, ScienceDirect, SciELO, and SciVerse, without temporal restrictions. This review highlights recent advancements in the therapeutic potential, biological activities, and pharmacological properties of oleuropein, with emphasis on its antioxidant, anti-inflammatory, anticancer, antimicrobial, antidiabetic, antiallergic, anti-osteoporotic, anti-ageing, immunomodulatory, anti-obesity, anti-atherosclerotic, cardioprotective, hepatoprotective, nephroprotective, neuroprotective, anti-Alzheimer, antiepileptic, anti- Parkinson, anxiolytic, reproductive, gastrointestinal, respiratory, and endocrine systems. Although oleuropein is utilised as a dietary supplement in various pharmaceutical forms (e.g., tablets, capsules) for certain health conditions, no formulation has yet received regulatory approval from the European Medicines Agency or the United States Food and Drug Administration for the prevention or treatment of diseases. Ongoing comprehensive investigations continue to expand the understanding of oleuropein’s pharmacological properties, therapeutic potential, and biochemical activities. Based on the current findings, oleuropein represents a promising therapeutic agent for the prevention and treatment of various systemic diseases. However, its specific effects and underlying mechanisms in distinct pathological conditions require further validation through future preclinical and clinical studies.
Keywords
References
- Abd-Allah, H., Youshia, J., Abdel Jaleel, G. A., Hassan, A., El Madani, M., & Nasr, M. (2024). Gastroprotective chitosan nanoparticles loaded with oleuropein: An in vivo proof of concept. Pharmaceutics, 16(1), 153. https://doi.org/10.3390/pharmaceutics16010153 google scholar
- Abdallah, I. M., Al-Shami, K. M., Yang, E., Wang, J., Guillaume, C., & Kaddoumi, A. (2022). Oleuropein-rich olive leaf extract attenuates neuroinflammation in the Alzheimer’s disease mouse model. ACS Chemical Neuroscience, 13(7), 1002–1013. https://doi.org/10.1021/acschemneuro.2c00005 google scholar
- Achour, I., Arel-Dubeau, A.-M., Renaud, J., Legrand, M., Attard, E., Germain, M., & Martinoli, M.-G. (2016). Oleuropein prevents neuronal death, mitigates mitochondrial superoxide production and modulates autophagy in a dopaminergic cellular model. International Journal of Molecular Sciences, 17(8), 1293. https://doi.org/10.3390/ijms17081293 google scholar
- Akünal Türel, C., & Yunusoğlu, O. (2023). Oleanolic acid suppresses pentylenetetrazole-induced seizure in vivo. International Journal of Environmental Health Research, 33(5), 529–540. https://doi.org/10.1080/09603123.2023.2167947 google scholar
- Al-Qarawi, A. A., Al-Damegh, M. A., & ElMougy, S. A. (2002). Effect of freeze dried extract of Olea europaea on the pituitary-thyroid axis in rats. Phytotherapy Research, 16(3), 286–287. https://doi.org/10.1002/ptr.855 google scholar
- Al-Rimawi, F., Sbeih, M., Amayreh, M., Rahhal, B., & Mudalal, S. (2024). Evaluation of the antibacterial and antifungal properties of oleuropein, Olea Europea leaf extract, and Thymus vulgaris oil. BMC Complementary Medicine and Therapies, 24(1), 297. https://doi.org/10.1186/s12906-024-04596-x google scholar
- Alirezaei, M., Rezaei, M., Hajighahramani, S., Sookhtehzari, A., & Kiani, K. (2017). Oleuropein attenuates cognitive dysfunction and oxidative stress induced by some anesthetic drugs in the hippocampal area of rats. The Journal of Physiological Sciences, 67(1), 131–139. https://doi.org/10.1007/s12576-016-0446-3 google scholar
- Alkhateeb, H., Al-Duais, M., & Qnais, E. (2018). Beneficial effects of oleuropein on glucose uptake and on parameters relevant to the normal homeostatic mechanisms of glucose regulation in rat skeletal muscle. Phytotherapy Research, 32(4), 651–656. https://doi.org/10.1002/ptr.6012 google scholar
Details
Primary Language
English
Subjects
Pharmacognosy, Pharmaceutical Botany
Journal Section
Review
Authors
Oruç Yunusoğlu
*
0000-0003-1075-9574
Türkiye
İrem Kalfa
0009-0002-5658-1011
Türkiye
Esma Koyuncu
0009-0007-5070-4187
Türkiye
Publication Date
May 21, 2026
Submission Date
May 1, 2025
Acceptance Date
January 20, 2026
Published in Issue
Year 2026 Volume: 56 Number: 1