Abstract
Poor healing is one of the major complications of microbial contamination of wounds. When the skin is damaged, microorganisms can quickly invade the underlying tissues and cause infections that are potentially life-threatening. As a result, effective therapies are required to handle such pathological disorders. Several bioactivities, including fungicidal and antibacterial properties, have been noted for Eucalyptus essential oils. This study aimed to investigate the effect of Eucalyptus oil (EO) and mixed oils (MO) of Eucalyptus citriodora, citronellol acetate, linalool, and α-pinene on the healing of C. albicans infected wounds in rats. Essential oils were extracted from the fresh areal parts of Eucalyptus citriodora, Lavandula stricta, and Rosmarinus officinalis then their active compounds were chromatographically isolated and identified using GC/Ms. The in vitro antifungal activities of EO and MO were evaluated against Candida albicans using the Agar well diffusion method. Further, their effect on the healing of C. albicans infected wounds was evaluated via the excision wound rat's model. Percentages of wound contraction, epithelialization period, wound Candida load, and the histopathology of wounded tissues were evaluated to confirm the progression of wound healing. Results of the in vitro tests showed that MO has a potent activity against C. albicans evaluated by an inhibitory zone (IZ) diameter of 23.4 mm and a MIC value of 0.24 g/mL, compared to EO's corresponding values of 13.4 mm and 15.63 g/mL. The beneficial impacts of MO creams in improving the percentage of contraction of C. albicans contaminated wounds were better than those of EO creams. MO 10% cream showed the greatest proportion of wound contraction and epithelialization rate. The beneficial effect of MO was further confirmed by a significant reduction of the fungal load of wounds in addition to histopathological improvement compared to the NC group. This study suggested the potential of 10% MO cream in enhancing the healing of C. albicans infected wounds upon topical application.
Published Version
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