Journal
JOURNAL OF NUTRITIONAL SCIENCE AND VITAMINOLOGY
Volume 53, Issue 3, Pages 293-296Publisher
CENTER ACADEMIC PUBL JAPAN
DOI: 10.3177/jnsv.53.293
Keywords
Hatakeshimeji (Lyophyllian decastes Sing.); atopic dermatitis; NC/Nga mouse; interleukin-4; interferon-gamma
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We examined whether the extract from Hatakeshimeji (Lyophyllum decastes, LD) mushrooms suppresses the development of atopic dermatitis (AD)-like skin lesions induced by repeated application of picryl chloride (PiCl) in NC/Nga mice. Oral administration of LD extract to NC/Nga mice inhibited the development of AD-like skin lesions based on lower total skin severity scores and serum immunoglobulin E (IgE) levels. Splenic lymphocytes were stimulated with the T cell mitogen concanavalin A, and secretion of a Th1 cytokine (IFN-gamma) and a Th2 cytokine (IL-4) was determined by ELISA. IFN-gamma production was not inhibited by treatment with LD extract. On the other hand, IL-4 production was significantly decreased by treatment with LD extract. These results suggest that LD extract exerts anti-allergic actions by suppressing the serum IgE and Th2-type immune responses.
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