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Healing of skin wounds in rats: influence of low-level laser therapy, alone or combined with natural products

Maciel, Diana Milanez Ávila Dias; Rahal, Sheila Canevese; Santos, Ivan Felismino Charas dos; Alves, Carlos Eduardo Fonseca; Sampaio, Alexandre Botelho de Abreu; Nagai, Laís Rosa; Camargo, Barbara Wagner Duarte Ferraz de; Salewski, Gabriella Cunha.
Acta sci. vet. (Online); 48: Pub. 1729, May 7, 2020. ilus, tab
Artigo em Inglês | VETINDEX | ID: vti-29333

Resumo

Background: A great variety of natural products have been evaluated for the skin wound healing due to anti-inflammatory,antioxidant and antibacterial activities, and procollagen synthesis, of which may be mentioned the honey and propolis. Inturn, low-level laser therapy (LLLT) is considered an important tool in the treatment of skin wounds, because of ability toraise the ATP production, to stimulate the microcirculation, and formation of new blood vessels. Therefore, this study aimedto assess the influence of LLLT, alone or combined with natural products, in the healing of excisional skin wounds in rats.Materials, Methods & Results: One hundred twenty-six male Wistar rats, aged 14 weeks, were randomly divided intoseven groups (n = 18 per group) according to wound treatments: G1 (negative control): 0.9% saline solution; G2 (positive control): allantoin + zinc oxide ointment; G3: LLLT; G4: mixture of honey + 5% propolis hydroalcoholic solution;G5: LLLT + mixture of honey + hydroalcoholic solution of 5% propolis; G6: LLLT + honey in natura; G7: LLLT + 5%propolis hydroalcoholic solution. Six rats from each group were euthanized on the 7th, 14th, and 21th postoperative days.Macroscopic and histological evaluations of wound healing were performed. A decrease in wound area occurred in allgroups, but in general G4 had the higher reduction and G1 and G3 had the lower reductions. These findings correspondedto the percentage of wound contraction, since the largest contraction was G4 and the lowest contractions were G1 andG3. Histological analysis showed no significant difference among groups...(AU)
Biblioteca responsável: BR68.1
Localização: BR68.1