Fig. 2From: Anti-inflammatory and analgesic activities of black cumin (BC, Nigella sativa L.) extracts in in vivo model systemsPossible mechanism of action of BC extracts to reduce inflammation in humans. In the BC extracts, phenols and polyphenols, e.g., ferulic acid, p-coumaric acid, kaempferol, and quercetin, inhibit the signaling molecules, stimulation of which may directly or indirectly result in inflammation. Proteins linked to inflammation participate in several canonical pathways underlying a range of biological activities. Ingenuity pathway analysis (IPA) identified that the BC extracts' components could target many of these proteins (Additional file 1: Table S1) and control inflammation. Arrows (↓) indicate direct stimulatory modification, whereas light-up signs (┬) indicate an inhibitory modification. The names of the proteins followed the Hugo nomenclature, NCBI Entrez, UniProtKB/Swiss-Prot systemBack to article page