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논문 기본 정보

자료유형
학술저널
저자정보
Lee, Eun-Ha (Natural Products Research Center, Korea Institute of Science and Technology [KIST] Gangneung Institute) Song, Dae-Geun (Natural Products Research Center, Korea Institute of Science and Technology [KIST] Gangneung Institute) Lee, Joo-Young (Natural Products Research Center, Korea Institute of Science and Technology [KIST] Gangneung Institute) Pan, Cheol-Ho (Natural Products Research Center, Korea Institute of Science and Technology [KIST] Gangneung Institute) Um, Byung-Hun (Natural Products Research Center, Korea Institute of Science and Technology [KIST] Gangneung Institute) Jung, Sang-Hoon (Natural Products Research Center, Korea Institute of Science and Technology [KIST] Gangneung Institute)
저널정보
한국응용생명화학회 Applied Biological Chemistry Applied Biological Chemistry 제52권 제5호
발행연도
2009.1
수록면
448 - 455 (8page)

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초록· 키워드

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The purpose of this study is to evaluate the active properties of Thuja orientalis leaves for the treatment of diabetic complications. The ethyl acetate fraction showed a significantly higher inhibition both of recombinant human aldose reductase (rhALR2) inhibitory activity and advanced glycation endproducts (AGEs). The detected antioxidants (compounds 1-4) by online-HPLC-$ABTS^+$ method and other three compounds were isolated using preparative RP-HPLC and Sephadex LH-20 column chromatography. Among the seven compounds, compound 4 (quercitrin) which was isolated from ethyl acetate fraction, was found to show inhibition for both forms of rhALR2 and AGEs. This compound also inhibited oxidative stress which was measured by Photochem$^{(R)}$ apparatus. In conclusion, the ethyl acetate fraction from T. orientalis demonstrated antioxidant activity as well as inhibitory effects on rhALR2 and AGEs. Quercitrin was shown to be the active compound and hence could be offered as an active material of standardization for the development of natural products for food or medicines.

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