Autoria: ALVARENGA, M. O. P.; BITTENCOURT, L. O.; MENDES, P. F. S.; RIBEIRA, J. T.; LAMEIRA, O. A.; MONTEIRO, M. C.; BARBOZA, C. A. G.; MARTINS, M. D.; LIMA, R. R.

Resumo: In traditional communities of the Brazilian Amazon, the copaiba oleoresin (C. reticulata Ducke) is widely known for its therapeutic activity, especially its wound healing and anti-inflammatory actions. Our study aimed to evaluate these effects in oral lesions and the safety of the dosage proposed. A punch biopsy wound was induced on the ventral surface of the tongue of forty-five male Wistar rats under anesthesia. Animals were randomly allocated to one of three groups based on the treatment: control, corticoid and copaiba. A daily dose of each treatment and vehicle was administrated by oral gavage for three consecutive days. Sample collections took place on the third, seventh and 15th days post-wounding for clinical and histopathological analyses. Blood was collected on the third and seventh days for kidneys and liver function tests. Semi-quantitative analyses were performed based on scores of inflammation and reepithelization. Tissue collagen deposition was detected by PicroSirius red staining. Copaiba-treated wounds revealed a smaller wound area, decreased of acute inflammatory reaction and enhanced reepithelization. The levels of kidney and liver function tests did not reveal presence of damage post-treatments. Our findings suggest that copaiba oleoresin is a safe and effective alternative therapy for inflammation and tissue repair of oral wounds in this animal model.

Ano de publicação: 2020

Tipo de publicação: Artigo de periódico

Unidade: Embrapa Amazônia Oriental

Palavras-chave: Antiinflamatório, Cicatrização, Copaíba, Oleorresina, Terapia