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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국응용약물학회 The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology 제8권 제1호
- 발행연도
- 2000.1
- 수록면
- 73 - 77 (5page)
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초록· 키워드
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Rheum undulatum L. has been used as Rhei Radix in Korean Pharmacopea although their pharmacological effects were not studied much. In this studym, we tested anti-inflammatory effect as a representative activity of Rheum undulatum L. extracts using cyclooxygenase (COX)-2 inhibition. Murine macrophage, Raw 264.7 cells were incubated with lipopolysaccharide (1 $\mu\textrm{g}$/ml) to induce COX-2. The prostagladin $E_2$ ($PGE_2$) levels as an indicator of COX-2 activity were determined in the culture medium using ELISA. Inhibition of acetylsalicylic acid (ASA) as a standard, aloe-emodin, chrysophanol, rhein, 80% ethanol extract of Rheum undulatum L. (Ex) and ether fraction (Fr) after acid hydrolysis of Rheum undulatum L. were tested in induced COX-2 described above. $IC_{50}$ values were 0.082 $\mu\textrm{g}$/ml for ASA. 181 $\mu\textrm{g}$/ml for aloe-emodin, 3.65 $\mu\textrm{g}$/ml for emodin, 144 $\mu\textrm{g}$/ml for chrysophanol, 39.8 $\mu\textrm{g}$/ml for rhein, 141 $\mu\textrm{g}$ of herb/ml for Ex, and 95.7 $\mu\textrm{g}$ of herb/ml for Fr. We found that Ex and Fr of Rheum undulatum L. were more effective than other anthraquinones, since their $IC_{50}$ are lower than others.
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