Abstract
Background: One of the primary flavonoids found in the Glycyrrhiza glabra is called glabridin, which has anti-inflammatory, anti-bacterial, and antineoplastic effects. However, the insolubility of glabridin in water limits its application. Liposomes can increase the solubility of insoluble drugs and improve their bioavailability. Objective: We examined the potential for the treatment of glabridin liposomes on histamine-induced atopic dermatitis. Materials and Methods: After GL treatment, histopathology, inflammatory cytokines, and atopic dermatitis-related proteins were used to evaluate the therapeutic effect of GL. Results: Glabridin liposomes alleviated histamine-induced scratching behavior; reduced mast cell proliferation, infiltration, and degranulation; and restrained the expression of associated pro-inflammatory cytokines. Additionally, glabridin liposomes restored nerve growth factor to normal levels and enhanced the expression of filaggrin to promote cuticle growth and repair skin damage caused by atopic dermatitis. Conclusion: Glabridin liposomes may relieve histamine-induced skin hypersensitivity and cortical hyperplasia by inhibiting the production of inflammatory cytokines, demonstrating their potential for the clinical treatment of atopic dermatitis.
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