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Abstract
The aim of this study was to evaluate the effect of ellagic acid on 5-fluorouracil-induced oral mucositis in rats. Twenty-four 6-month-old male Wistar albino rats were used. The rats were divided into three groups: Experimental Group I, Experimental Group II and Control Group. A superficial scratch was made on the mucosa of the right cheek pouch on the 3rd day and the 5th day. Oral mucositis protocol was applied to the Control Group. Ellagic acid was administered by gavage to the Experimental Group I from the 1st day to the 5th day along with the 5-FU procedure, and to the Experimental Group II from the 5th day to the 10th day. On the 11th day, all rats were sacrificed. The effect of ellagic acid on the healing of oral mucositis was evaluated histopathologically and immunohistochemically. TNF-α expression was observed at various intensities in the infected incision sites of the Experimental Group I sample, especially in the interstitial area in the lamina propria and mostly in the cytoplasm of the inflammatory cells within the vessel. Similar to the Experimental Group I, TNF-α expression of varying intensity occurred in the inflammatory cells in the Experimental Group II, partly in the epithelium and mostly in the inflammatory cells in the lamina propria. Additional research is needed to elucidate the pathogenic inflammatory mechanisms involved in the mucositis site and the prophylactic and therapeutic roles of antioxidants in the healing of oral mucositis by ellagic acid.
Acknowledgements
The authors would like to thank Bingol University Scientific Research Projects Coordination Unit for their financial support.
Authors’ Contributions
Conceptualization, Visualization, Validation, E.E.Ç, A.Ç and A.K.; Data curation, Formal Analysis, E.E.Ç, A.Ç and M.B.D; Funding acquisition, Project administration, E.E.Ç; Methodology, H.Y. and M.B.D.; Writing – original draft, Writing – review & editing, Investigation, Supervision, Resources, Software, E.E.Ç and A.Ç. All authors have read and agreed to the published version of the manuscript.
Disclosure statement
The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results.
Data availability statement
The data supporting the findings of this study are available from the corresponding author upon reasonable request.