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논문 기본 정보

자료유형
학술저널
저자정보
Choi, Yeon Ja (Molecular Inflammation Research Center for Aging Intervention [MRCA], College of Pharmacy, Pusan National University) Kim, Hyung Suk (Molecular Inflammation Research Center for Aging Intervention [MRCA], College of Pharmacy, Pusan National University) Lee, Juyoun (Department of Periodontology, School of Dentistry, Pusan National University) Chung, Jin (Department of Periodontology, School of Dentistry, Pusan National University) Lee, Jun Sik (Department of Biology, College of Natural Science, Chosun University) Choi, Jae Sue (Faculty of Food Science and Biotechnology, Pukyong National University) Yoon, Taek Rim (Heart Research Center of Chonnam National University Hospital) Kim, Hyung Keun (Heart Research Center of Chonnam National University Hospital) Chung, Hae Young (Molecular Inflammation Research Center for Aging Intervention [MRCA], College of Pharmacy, Pusan National 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 제37권 제8호
발행연도
2014.1
수록면
1,032 - 1,038 (7page)

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Oxidative stress has been proposed to be a major cause of aging and many age-related diseases. Peroxynitrite ($ONOO^-$), formed from the reaction of superoxide ($^{\bullet}O_2{^-}$) and nitric oxide (NO), is a cytotoxic species that can oxidize various cellular components, such as proteins, lipids, and DNA. The present study investigated whether dimethyl lithospermate (DML), isolated from Salvia miltiorrhiza, modulates age-related increases of $ONOO^-$, NO, and reactive species (RS) levels and expressions of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS). For this study, 20-month-old rats were intraperitoneally injected with 5 or 10 mg/kg/day of DML, and 6-month-old rats were used as young control animals. Our results indicated that DML reduces $ONOO^-$ levels in a dose-dependent manner. The data also revealed that DML has significant inhibitory effects on NO metabolites and RS generation in a dose-dependent manner during aging. Furthermore, the results of Western blot analysis revealed that DML treatment reduces age-associated increases in COX-2 and iNOS expressions. Thus, this study found that DML caused the decrease of renal oxidative stress and COX-2 and iNOS expressions in aged rats. The significance of the present study is the finding of DML in its potential application against the aging process.

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