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Artemisia argyi is widely used as traditional medicine in East Asia. However, its effects against inflammation and gastric ulcers have not been reported yet. We analyzed anti-inflammatory activity and its molecular mechanisms of A. argyi using RAW264.7 cells line, then evaluated the curative efficacy in rats with acute gastric ulcers. Nitric oxide and IL-6 production was measured using Griess reagent and an ELISA kit. Inducible nitric oxide synthase (iNOS), interleukin (IL)-6, and mucin (MUC)1, MUC5AC, and MUC6 mRNA were determined by SYBR Green or Taqman qRT-PCR methods. The phosphorylation of ERK, JNK, p38, and c-Jun protein were detected by western blotting. RW0117 inhibited LPS-induced NO and IL-6 production. The mRNA levels of iNOS and IL-6 were strongly suppressed. The phosphorylation of ERK, JNK, and c-Jun decreased by treatment with RW0117. Oral administration of RW0117 recovered the amount of mucin mRNA and protein level that was decreased due to gastric ulcers by HCl-EtOH. A. argyi exhibited strong anti-inflammatory effects and contributed to the modulation of HCl-EtOH-induced gastric ulcer in rats.

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Anti-Inflammatory Effect of Artemisia argyi on Ethanol-Induced Gastric Ulcer: Analytical, In Vitro and In Vivo Studies for the Identification of Action Mechanism and Active Compounds