Abstract

The effect of aqueous extract of Xanthii fructus (XF) on mast cell-mediated allergic reaction has been investigated. XF inhibited compound 48/80-induced systemic anaphylaxis in mouse. This dose-dependently inhibited histamine release from rat peritoneal mast cells (RPMC) by compound 48/80. Additionally, XF inhibited local immunoglobulin E (IgE)-mediated passive cutaneous anaphylatic reaction. When XF (0.1 mg/ml) was added, the secretion of tumor necrosis factor-α (TNF-α) from anti-dinitrophenyl (DNP) IgE antibody-stimulated mast cells was inhibited by 56%. Our studies provide evidence that XF may be beneficial in the treatment of various types allergic diseases.

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