AHR and rheumatoid arthritis: Interestingly, these results of network target analysis demonstrate an unexpected mechanism of QLY for RA therapies, in which Aryl hydrocarbon receptor (AHR) contributing to the pathogenesis of RA [55] is regulated by multiple ingredients in QLY (e.g., Kuraridin, Sophoraflavanone and Xanthohumol in Ku-Shen, Salicylaldehyde and Allantoin in Qing-Feng-Teng, β-Elemene in Huang-Bai, and Piperitol in Bi-Xie).