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  • Title: Effect of orally administered Eriobotrya japonica seed extract on allergic contact dermatitis in rats.
    Author: Sun G, Zhang Y, Takuma D, Onogawa M, Yokota J, Hamada A, Yoshioka S, Kusunose M, Miyamura M, Kyotani S, Nishioka Y.
    Journal: J Pharm Pharmacol; 2007 Oct; 59(10):1405-12. PubMed ID: 17910816.
    Abstract:
    The anti-allergic activity of Eriobotrya japonica seeds extract (ESE) was investigated. Oral administration of ESE dramatically inhibited ear swelling due to allergic contact dermatitis caused by repeated application of two antigens, 4-ethoxymethylene-2-phenyl-2-oxazolin-5-one (oxazolone) and dinitrofluorobenzene (DNFB), respectively. The increase of histamine content in inflamed ear tissue induced by oxazolone and DNFB was significantly antagonized by orally administered ESE. Eosinophil peroxidase and myeloperoxidase activity in both models was suppressed by orally administered ESE. Tumour necrosis factor-alpha in the inflamed region caused by repeated application of DNFB was also significantly suppressed. The findings suggest that ESE may be effective for treating allergic contact dermatitis.
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