Background and Design: The objective of this study was to investigate the wound healing activity of different concentrations of liposomal trans-resveratrol formulations on incisional and excisional wounds in rats. Materials and Methods: The wound healing effect was tested by an excisional and incisional wound model. Wound closure was measured for 12 days. On the 12 th day of the study, maximal load, maximum stress, stress, and % of elongation values were evaluated in the incisional wound. In addition, angiogenesis, granulation tissue thickness, epidermal and dermal regeneration values, and macroscopic photographic analyses were evaluated in the excisional wound. Results: When the wound tissue surface healing rates were evaluated, similar effects were observed at the end of the 10 th and 12 th days between the 5% Res group and the commercial product containing 1% Centella asiatica extract used as the reference molecule. Histological evaluation showed that 1% Res and 5% Res groups induced significant wound healing activity compared to the control group. Furthermore, 1% Res and 5% Res groups increased wound healing rates by promoting granulation tissue, epidermal, and dermal regeneration as well as angiogenesis. Conclusion: Liposomal formulations containing 1% and 5% resveratrol were found to have positive effects on the healing process, both on excisional and incisional wound tissues.
OBJECTIVES: This study aimed to investigate the wound healing activity of liposomal Carpobrotus edulis powder extract (CEPE) formulation on incisional and excisional wounds in rat. BACKGROUND: In the event of any damage, the damaged tissue undergoes a process of regenerating itself, which is called wound healing. METHODS: Centella asiatica extract (CAE) was used as the reference molecule in the study. The wound healing process was tested by using the excisional and incisional wound model. On the 12th day of the study, maximum stress, stress, % of elongation values were evaluated in the incisional wound. Also; histological parameters and macroscopic photographic analyses were evaluated in the excisional wound. RESULTS: In the photo evaluations, the improvement was more prominent in both CAE and CEPE groups than in the control group. Histological evaluation showed that CEPE group had signifi cant wound healing activity compared to the control and CAE groups. Axial tensile-elongation experiments in incisional wound tissue show that there was no signifi cant difference between CAE and CEPE groups. CONCLUSION: Liposomal formulations of C.edulis extract were found to have positive effects on the healing process, both on excisional and incisional wound tissues (Tab. 2, Fig. 3, Ref. 30).
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