The aim of this study was to develop a novel oil-in-water (o/w) nanoemulsion gel containing levofloxacin for enhanced topical efficacy. Average particle size of sesame oil nanoemulsion without (SONE) and containing levofloxacin (SONEL) was found as 25.2 and 26.3 nm, respectively. Results from scratch test showed that SONEL had better proliferation effect in comparison with negative control. Treated animals with SONEL showed significant reduction in period of epithelialization, wound contraction, and number of inflammatory cells among all groups. Also, SONEL-treated group had the greatest collagen synthesis. Immunohistochemical analysis showed high intensity of CD31 and TGF-β at wound site of treatment groups with SONEL on day 12 post-treatment (P < 0.05). Skin irritation test demonstrated safety of SONEL gel for skin topical application. In conclusion, our studies suggest that SONEL could be an effective formulation for treatment of diabetic wound infection by controlling infection and improving the healing process.
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Sesame oil nanoemulsion
Sesame oil nanoemulsion containing levofloxacin
Diabetic negative control group
Non-diabetic negative control group
Cluster of differentiation 31
Transforming growth factor beta
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This study was supported by Tehran University of Medical Science and Health Services grant no. 96-01-87-34142.
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Valizadeh, A., Shirzad, M., Pourmand, M.R. et al. Levofloxacin nanoemulsion gel has a powerful healing effect on infected wound in streptozotocin-induced diabetic rats. Drug Deliv. and Transl. Res. 11, 292–304 (2021). https://doi.org/10.1007/s13346-020-00794-5
- Sesame oil nanoemulsion
- Wound healing
- Topical gel