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RISS 인기검색어
- 검색키워드
- 저자 : Toshimitsu Sumiya (검색결과 2 건)
- 무료
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The Medicinal Mushroom, Grifola gargal, Ameliorates Allergic Bronchial Asthma
Etsuko Harada,Corina N. D’Alessandro-Gabazza,Masaaki Toda,Toshihiro Morizono,Toshiaki Totoki,Taro Yasuma,Kota Nishihama,Tetsu Kobayashi,Toshimitsu Sumiya,Hirokazu Kawagishi,Esteban C. Gabazza 한국식품영양과학회 2018 Journal of medicinal food Vol.21 No.2
Grifola gargal Singer, a medicinal mushroom, has been found to be effective for the prevention and treatment of various chronic inflammatory diseases. However, the effects of G. gargal on allergic diseases are unknown. The present study investigated the effect of G. gargal extract on allergic bronchial asthma. Asthma was induced in mice by ovalbumin sensitization and inhalation. The grade of asthma was compared between mice fed with chow containing G. gargal extract and mice given standard chow. The human mast cell and eosinophilic cell lines were used for in vitro studies. G. gargal extract significantly reduced airway hyperresponsiveness, lung eosinophilic infiltration, lung interleukin (IL)-13 expression, and plasma IgE level and significantly increased IL-10 plasma levels compared to untreated control mice. Spleen regulatory T cells were significantly increased in mice treated with the G. gargal extract compared with untreated control mice. G. gargal extract significantly suppressed expression of cytokines in mast cells and eosinophils compared with control cells. Overall, these observations show that G. gargal extract augments the lung population of regulatory T cells and ameliorates allergic inflammation and airway hyperresponsiveness in mice with allergic bronchial asthma, suggesting the potential therapeutic benefit of G. gargal extract in allergic diseases.
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Amelioration of Atherosclerosis by the New Medicinal Mushroom Grifola gargal Singer
Etsuko Harada,Corina N. D’Alessandro-Gabazza,Masaaki Toda,Toshihiro Morizono,Ayshwarya-Lakshmi Chelakkot-Govindalayathil,Ziaurahman Roeen,Masahito Urawa,Taro Yasuma,Yutaka Yano,Toshimitsu Sumiya,Esteb 한국식품영양과학회 2015 Journal of medicinal food Vol.18 No.8
The beneficial effects of edible mushrooms for improving chronic intractable diseases have been documented. However, the antiatherogenic activity of the new medicinal mushroom Grifola gargal is unknown. Therefore, we evaluated whether Grifola gargal can prevent or delay the progression of atherosclerosis. Atherosclerosis was induced in ApoE lipoprotein-deficient mice by subcutaneous infusion of angiotensin II. Grifola gargal extract (GGE) was prepared and intraperitoneally injected. The weight of heart and vessels, dilatation/atheroma formation of thoracic and abdominal aorta, the percentage of peripheral granulocytes, and the blood concentration of MCP-1/CCL2 were significantly reduced in mice treated with GGE compared to untreated mice. By contrast, the percentage of regulatory T cells and the plasma concentration of SDF-1/CXCL12 were significantly increased in mice treated with the mushroom extract compared to untreated mice. In vitro, GGE significantly increased the secretion of SDF-1/CXCL12, VEGF, and TGF-β1 from fibroblasts compared to control. This study demonstrated for the first time that Grifola gargal therapy can enhance regulatory T cells and ameliorate atherosclerosis in mice.
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