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자료유형
학술저널
저자정보
Ren, Jie (Department of Pharmacology and Clinical Pharmacy, College of Pharmacy, Kyung Hee University) Han, Eun-Jung (Department of Pharmacology and Clinical Pharmacy, College of Pharmacy, Kyung Hee University) Chung, Sung-Hyun (Department of Pharmacology and Clinical Pharmacy, College of Pharmacy, Kyung Hee University)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제30권 제6호
발행연도
2007.1
수록면
708 - 714 (7page)

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The fruit of Actinidia Polygama (AP) has long been used as a folk medicine in Korea for the treatment of pain, rheumatoid arthritis and inflammation. In the present study, bioassay-guided fractionation of AP led to the separation and identification of a polyunsaturated fatty acid, ${\alpha}$-linolenic acid (ALA), which was found to show anti-inflammatory activity. The anti-inflammatory effects of ALA, using acetic acid or carrageenan-induced inflammation models, were investigated in mice or rats, respectively. ALA significantly inhibited the acetic acid-induced vascular permeability in a dose dependent manner (34.2 and 37.7% inhibition at doses of 5 and 10 mg/kg, respectively). ALA also significantly reduced a rat paw edema induced by a single treatment of carrageenan. To investigate the mechanism of the anti-inflammatory action of ALA, the effects of ALA on lipopolysaccharide (LPS)-induced responses In the murine macrophages cell line, RAW 264.7, were examined. Exposure of LPS-stimulated cells to ALA inhibited the accumulation of nitrite and prostaglandin E$_2$ (PGE$_2$) in the culture medium. Consistent with these observations, the protein and mRNA expression levels of iNOS and COX-2enzyme were markedly inhibited by ALA in a dose dependent manner. These results suggest that the anti-inflammatory activity of ALA might be due to the suppression of the expressions of iNOS and COX-2 mRNA.

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