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KMID : 1098420180260010042
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Korean Journal of Medicinal Crop Science
2018 Volume.26 No. 1 p.42 ~ p.54
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Screening and Evaluation of the Anti-allergic Effect of Korean Medicinal Plant Extracts
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Kim Nan-Sol
Choi Doo-Jin
Choi Eun-Ju
Lee Jeong-Hoon
Park Saet-Byul
Lee Young-Seob
Lee Jeong-Hoon
Lee Dae-Young
Kim Geum-Soog
Lee Seung-Eun
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Abstract
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Background: Allergic diseases like such as atopic dermatitis, asthma, and rhinitis have recently increased both domestically and globally. The present study was undertaken to select candidates with anti-allergic activity from plant resources..
Methods and Results: Fifty-six plant extracts at 20μg/ml were screened against β-hexosaminidase production and interleukin (IL)-4 release in degranulated rat basophilic leukemia (RBL)-2H3 cells. The anti-allergy activity of three plant extracts selected from the preliminary screening experiment, Polygonatum sibiricum F. Delaroche (root), Pyrus pytifolia var. culta (Makino) Nakai (leaf), and Rehmannia glutinosa (Gaertn.) Libosch. ex Steud (root) were measured at concentrations of 2 - 250μg/ml in three cell lines as RBL-2H3, HaCaT and Jurkcat T cells. The assay showed the root extract of R. glutinosa to have an inhibitory activity of 4.2% - 28.6% on β-hexosaminidase production from IgE-sensitized RBL-2H3 cells. Each extract of P. sibiricum and R. glutinosa reduced IL-4 release in IgE-sensitized RBL-2H3 cells, respectively. The leaf extract of P. pyrifolia var. culta showed a significantly potent suppressive effect of 10.2% - 74.7% on the mRNA expression of tumor necrosis factor (TNF)-α in HaCaT cells sensitized with TNF-a and INF-g, and showed inhibitory effect of ?8.6% - 90.9% on the mRNA expression of IL-2 in Jurkat T cells sensitized with PMA and A23187.
Conclusions: The results showed that the root of R. glutinosa and leaf of P. pyrifolia var. culta could be useful candidates as antiallergy materials.
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KEYWORD
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Anti-allergic Effect, Degranulation, β-Hexosaminidase, Cytokine, Plant
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