Anti-Inflammatory Effects of p-Coumaric Acid, a Natural Compound of Oldenlandia diffusa, on Arthritis Model Rats

Figure 1

Chromatogram of each group (308 nm): (a) blank methanol; (b) 8 reference compounds; (c) test solution of OD. p-CA refers to p-coumaric acid.

(a)

(b)

(c)