Journal
NATURAL PRODUCT RESEARCH
Volume 32, Issue 5, Pages 605-609Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786419.2017.1326492
Keywords
Symphytum officinale; comfrey; cell viability; human skin fibroblast; antioxidant activity; phenolic acids; allantoin
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The root of Symphytum officinale L. is commonly used in folk medicine to promote the wound healing, reduce the inflammation and in the treatment of broken bones. The objective of our investigation was to analyse the extract from S. officinale in term of its antioxidant activity and the effect on cell viability and proliferation of human skin fibroblast (HSF). Moreover, the quantification of main phenolics and allantoin was conducted using HPLC-DAD method. Five compounds were found: rosmarinic, p-hydroxybenzoic, caffeic, chlorogenic and p-coumaric acid. DPPH, FRAP and TPC assay showed the high antioxidant activity of the extract. MTT test proved the stimulatory effect on cell metabolism and viability of HSF cells. Moreover, no changes in cytoskeleton structure and cells shape were observed. The obtained results indicate that non-toxic extract from S. officinale root has strong antioxidant potential and a beneficial effect on human skin fibroblasts. [GRAPHICS] .
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