Abstract
This study analyzed fruit stem extract (MGFE) from Muscat Bailey A grape (Vitis labrusca× Vitis vinifera) for their ameliorative effects on Ultraviolet B (UVB)-induced skin damage in Balb/c mice. Well established in vivo assays were used to determine the biological effects of MGFE upon UVB irradiation of BALB/c mice. The results showed that treatment with MGFE recovered glutathione depletion, prevented lipid peroxidation of tissues and decreased the expression of DNA repair enzyme oxo guanine glycosylase-1. MGFE recovered the skin conditions in UVB-irradiated Balb/c mice. Moreover, MGFE inhibited dermal infiltration of inflammatory cells and reduced serum tumor necrosis factor alpha and interleukin-6 levels. Finally, MGFE treatment inhibited UVB-induced melanin formation and collagen fiber destruction through the inhibition of matrix metalloproteinase-1 expression. Through high-performance liquid chromatography analysis, catechin, epicatechin, and trans-resveratrol were found to be among the main active compounds present in MGFE. Taken together, these results indicated that MGFE has potentials as topical therapeutic materials against skin damage by inhibiting oxidative stress and inflammatory.
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