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Controlled animal study demonstrates accelerated wound healing and reduced inflammation with Dacryodes kukachkana bark extract in rats, indicating therapeutic promise for skin repair.
Background: Dacryodes kukachkana (Burseraceae) is found in the Amazon rainforest of Brazil, being the genera widely used in folk medicine for several inflammatory conditions. Objective: In this study, it was investigated the anti-inflammatory effect of the Hydroethanolic Extract of D. kukachkana (HEDk) barks in the rat model of excisional skin wounds. Methods: The wounds were induced on the dorsal region of Wistar rats and treated daily by topical application of HEDk (500 mg/100 μL), compared to the control Saline (0.9% NaCl). Clinical parameters (edema, hyperemia, exudate, hypernociception), histopathological (leukocyte infiltrate, fibroblasts, blood vessels) and oxidative stress markers were evaluated from the 2nd to the 6th day post-ulceration. Results: HEDk reduced the following parameters at the 2nd day: inflammatory exudate (0 [0-0] vs. saline: 2 [1 – 3]); wound area (36%), healing index (48.56% ± 1.886 vs. saline: 27.99% ± 2.460) and malondialdehyde (27%). HEDk also reduced leukocyte infiltrate (49 – 34%) from the 4th to the 6th days post-ulceration. HEDk increased the parameters: nociceptive threshold (31 – 73%) from the 2nd to the 4th days; blood vessels (1.9x) and reduced glutathione (32%) at the 4th day; and the number of fibroblasts (91 – 44%) at the 2nd and 6th days. Conclusion: HEDk accelerates the healing process in the rat model of excisional cutaneous wounds via attenuation of inflammatory parameters and stimulation of fibroplasia and angiogenesis.
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Lima et al. (2024) studied this question.
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