Abstract
Background Stromal Vascular fraction/gel (SVF/gel) is prepared mechanically from autologous adipose tissue, and it is known for its regenerative and anti-inflammatory properties. Aims To assess histopathological effects of adipose tissue-derived SVF/gel and nasal steroids on nasal mucosal healing Material and Methods Forty-two Wistar Albino rats with right nasal mucosal injury were randomly divided into three groups: control (saline), Mometasone Furoate (MF), and SVF/gel. Control group (n = 14) received saline for 7 days, while MF group (n = 14) was administered MF to the right nasal cavity for 7 days. SVF/gel group (n = 14) was treated once with SVF/gel in the right nasal cavity. Histological analysis on days 14 and 28 post-injury focused on evaluating epithelial thickness, inflammation, disarray, subepithelial thickness, goblet cell count, subepithelial fibrosis, presence of ciliated cells, lacunae, adhesion, and neo-osteogenesis. Results When comparing the MF and SVF/gel groups, statistically significant differences were found on day 14 in indices of epithelial thickness, subepithelial thickness, goblet cells, subepithelial fibrosis, and ciliated cells. On day 28, SVF/gel group exhibited higher ciliated cell counts and lower subepithelial fibrosis values (p = .027; p = .016). Additionally, epithelial disarray, adhesions, lacunae, and neo-osteogenesis were not observed in the SVF/gel group. Conclusions and Significance SVF/gel accelerates re-epithelialization, reduces fibrosis and adhesions, and enhances cilia formation compared to nasal steroids. These findings suggest that SVF/gel is an autologous and cost-effective treatment for improving nasal mucosal healing post-injury.
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