Figure 1From: Topical anti-inflammatory activity of Polygonum cuspidatum extract in the TPA model of mouse ear inflammationChromatogram of ethanol-soluble PCE fraction. A single major peak was observed in the chromatogram of the 50% ethanol soluble fraction of PCE that eluted at 16.3 min with the same retention time as authentic trans-resveratrol (not shown).Back to article page