Fig. 8From: Combination of Pelargonium sidoides and Coptis chinensis root inhibits nuclear factor kappa B-mediated inflammatory response in vitro and in vivoRepresentative immunohistochemical profiles of COX-2, iNOS, and TNF-α in paw skin. Marked increases of COX-2, iNOS, and TNF-α-positive cells were detected in the epithelium and dermis of the dorsum (a) and ventrum pedis skin tissues (b) in CA-treated rats compared with normal rats. Scale bars = 60 μmBack to article page