The therapeutic effect of glycyrrhizic acid compound ointment on imiquimod-induced psoriasis-like disease in mice

by Yanwen Zhang, Qian Wang, Shuangyong Sun, Lingyan Jiang Glycyrrhetinic acid, a drug with anti-inflammatory effects, enhanced the activity of antipsoriatic efficacy. In this research, an ointment with glycyrrhetinic acid was prepaired as the major component and several other herbal monomers (astilbin, osthole, and momordin Ic) have antipsoriatic activit y as minor components. Then an Imiquimod-induced psoriasis-like mouse model was established and the damaged skin condition of the administered group, the changes in the spleen index and the secretion of inflammatory factors in mouse skin were observed. Calcipotriol ointment was used as a positive co ntrol to compare the efficacy. Glycyrrhizic acid compound ointment significantly improved imiquimod-induced psoriasis in mice and reduced the secretion of TNF-α, IL-12, IL-17, and IL-23 in mouse skin, and showed a stronger therapeutic effect than calcipotriol ointment. Calcipotriol ointment did not significantly alleviate imiquimod-induced splenomegaly and did not significantly reduce the expression of IL-17 and IL-23 in mouse skin. Glycyrrhetinic acid compound ointment was more effective than calcipotriol and was dose-dependent in the treatment of imiquimod-induced psoriatic dermatitis in mi ce. Meanwhile,calcipotriol was not suitable for the treatment of Imiquimod -induced psoriasis-like mice.
Source: PLoS One - Category: Biomedical Science Authors: Source Type: research