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Figure 2 | BMC Complementary and Alternative Medicine

Figure 2

From: Photoprotective and antioxidant effects of Rhubarb: inhibitory action on tyrosinase and tyrosine kinase activities and TNF-α, IL-1α and α-MSH production in human melanocytes

Figure 2

Effects of Rheum rhaponticum L. extract (RRE) and kojic acid (KA) on interleukin-1 (IL-1) production by human melanocytes exposed and unexposed to ultraviolet radiation. The data are presented as the mean ± S.E.M. of six individual experiments, performed in triplicate. *P < 0.001 compared with control unexposed to UV radiation; +P < 0.001 compared with control exposed to ultraviolet radiation.

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