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Subject

Inhibitory Activity of Pigmented Rice Bran Extract to the Allergic Inflammation in Basophilic Cell Line and Peritoneal Mast Cells
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호염구세포주와 복강 비만세포에서 유색미 겨 추출물의 알레르기 염증 억제활성

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Type
Academic journal
Author
Choi, Sun-Phil (아주대학교 생명과학과) Kang, Mi-Young (경북대학교 식품영양학과) Nam, Seok-Hyun (아주대학교 생명과학과)
Journal
한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제48권 제4호 KCI Accredited Journals SCOPUS
Published
2005.1
Pages
315 - 321 (7page)

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Inhibitory Activity of Pigmented Rice Bran Extract to the Allergic Inflammation in Basophilic Cell Line and Peritoneal Mast Cells
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The effects of the extracts from the bran part of pigmented rices on inflammation was evaluated by determining their inhibitory action on the histamine and ${\beta}-hexosaminidase$ release, together with inflammatory cytokine productions ($IL-1{\beta},\;TNF-{\alpha}$ and IL-6). Examination of the inhibitory effects on the histamine and ${\beta}-hexosaminidase$ release from a basophilic cell line RBL-2H3 cells and rat peritoneal mast cells (RPMC) showed that the pigmented rice extract inhibited these inflammation-mediating substances (10.19% and 110.03% inhibition in histamine and ${\beta}-hexosaminidase$ release, respectively), while normal brown rice extract rather increased their release. For RPMC, the pigmented rice extract was found to have 8 or 3-fold stronger inhibitory activity than normal brown rice toward histamine or ${\beta}-hexosaminidase$ release, respectively. Expression of $IL-1{\beta},\;TNF-{\alpha}$ and IL-6 was measured as the representative inflammatory cytokine species showed that the pigmented rice extract had a higher inhibitory activity than the normal rice counterpart. ELISA analysis for determining cytokine release demonstrated a more effective blockading ability of the pigmented rice to the release of $IL-{\beta},\;TNF-{\alpha}$ and IL-6 compared to normal rice. These results showed us the superiority of the pigmented rice bran extract not only in suppressing the release of inflammation-mediating substances such as histamine and ${\beta}-hexosaminidase$, but also in repression of the inflammatory cytokine expression.

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