Abstract Title:

Diets containing pomegranate polyphenol and soy isoflavone attenuate contact hypersensitivity in mice.

Abstract Source:

Biosci Biotechnol Biochem. 2019 Mar ;83(3):525-530. Epub 2018 Nov 10. PMID: 30417760

Abstract Author(s):

Takao Nagano, Hideyuki Ito

Article Affiliation:

Takao Nagano


Contact hypersensitivity (CHS) is frequently used as an animal model for human allergic contact dermatitis (ACD). Diets of pomegranate polyphenols (PPs) or soy isoflavones (SIs) each alleviated CHS symptoms; however, the effect of diets containing a mixture of PPs and SIs on CHS is unclear. We investigated the CHS-inhibitory effects of diets supplemented with a mixture of PPs and SIs at human physiologically relevant doses. Consuming the mixture of PPs and SIs attenuated ear swelling and reduced infiltration of Gr-1-positive cells. Ear swelling decreased in the PP and SI-treated mice compared to the SI-treated mice. The auricle tissues of the PP and SI-fed mice exhibited decreased production of CXCL2 and MCP-5 compared to the SI- and PP-treated mice, respectively. These results suggest that dietary supplementation with a mixture of PPs and SIs may have ACD-preventive effects and may prove more beneficial than supplementation with PPs or SIs alone.

Study Type : Animal Study

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