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|Title:||Topical essential fatty acid oil on wounds: local and systemic effects|
|Author:||Lania, B. G.|
Almeida, A. R. de
Silva, M. N. da
Lins, K. D.
Cesar, C. L.
Velloso, L. A.
Maia, N. B.
Cintra, M. L.
|Abstract:||Background The use of medicinal plants and their derivatives is increasing, and approximately one-third of all traditional herbal medicines are intended for wound treatment. Natural products used in these treatments include vegetable oils, which are rich in essential fatty acids. Once in contact with an ulcerative surface, the oil reaches the blood and lymphatic vessels, thus eliciting systemic effects. ObjectiveThis study evaluated the local and possible systemic effects of essential fatty acids (sunflower oil) applied topically to rat wounds. Methods Cutaneous punch wounds (6 mm) were produced on the dorsa of 30 rats. Saline (SS), mineral oil (MO) or essential fatty acid (EFA) solutions were applied topically. Healing was evaluated after 2, 4 and 10 days (n = 5 per group) by visual and histological/morphometric examination, second harmonic generation (SHG) microscopy, and cytokine and growth factor quantification in the scar tissue (real-time PCR) and in serum (ELISA). Results MO/EFA-treated animals had higher IGF-1, leptin, IL-6 and IFN-gamma mRNA expression and lower serum IL-6 levels than the control (SS/MO) animals. SHG analysis showed no difference in collagen density between the animals treated with MO and EFA. Conclusion EFA treatment induces topical (observed by local IGF-1, leptin, IL-6 and IFN-gamma production) and systemic effects, lowering IL-6 levels in the serum. As the oil is widely used to shorten ulcer healing time, studies are needed to evaluate the treatment safety and possible undesired effects.|
|Subject:||Cicatrização de feridas|
Ferimentos e lesões
Wounds and injuries
|Editor:||Public Library of Science|
|Appears in Collections:||IFGW - Artigos e Outros Documentos|
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