Abstract
In order to evaluate whether the aqueous fraction of Cinnamomum cassia produced by solid-state fermentation with Phellinus baumii (afCc/Pb) inhibits atopic symptoms in vivo, its efficacy was evaluated in an animal model of 2,4-dinitrofluorobenzene (DNFB)-induced atopic dermatitis. Immune-related cells were quantified using hematoxylin and eosin staining, and phenotypic cytokines, enzymes and the expression of other proteins in the animal model were evaluated. The data revealed that afCc/Pb (100 µg/ml) exhibited strong anti-atopic activity, causing a significant 40% reduction in immune response, as shown by the extent of ear swelling, resulting from a decrease in the number of eosinophils in the skin tissues due to decreased matrix metalloproteinase-2 and interleukin-31 expression. These results collectively suggest that afCc/Pb has the potential to alleviate the symptoms of atopic dermatitis in a mouse model of DNFB-induced atopic dermatitis, and that it may be a valuable bioresource for the cosmetic/cosmeceutical industry.
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