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류강선,이완주,구현옥,이회선,이강노,김선여,Ryu, Kang-Sun,Lee, Won-Chu,Ku, Hyun-Ok,Lee, Hoi-Seon,Lee, Kang-Ro,Kim, Sun-Yeou 한국생약학회 1999 생약학회지 Vol.30 No.2
The hypoglycemic effect of mulberry leaves using alloxan-induced diabetic mice was investigated. The hypoglycemic effect of mulberry leaves was significantly affected with anaerobic incubation up to for 6 hrs. The body weight of mice treated with 20% anaerobic conditioned mulberry leaves was higher than that in the control group. Mulberry leaves which were treated with anaerobic condition significantly decreased blood glucose level in alloxan-induced type I diabetes mice. Furthermore, glucose tolerance was significantly recovered by feeding mulberry leaves anaerobically treated. Pathological analysis revealed that the disappearance of insulin-secreting beta-cells in the islets of Langerhans from the alloxan induced diabetic mice was strongly inhibited in the mulberry leaves feeding group. The content of 1-deoxynojirimycin increased up to 5% in detached mulberry leaves incubated under nitrogen gas for 6 hrs. Nevertheless, it is not clear whether the synthesis of 1-deoxynojirimycin is increased or the degradation of it is decreased. Overall, results obtained from this study indicate that the hypoglycemic effect was increased by the mulberry leaves with anaerobic treatment.
사염화탄소에 의해 유발된 간독성에 대한 상백피 추출물의 간보호효과
김선여(Sun Yeou Kim),이희삼(Heui Sam Lee),류강선(Kang Sun Ryu),이은주(Eun Ju Lee),김영중(Young Choong Kim) 대한약학회 1999 약학회지 Vol.43 No.3
In order to evaluate the protective effects of extracts of Mori cortex radicis on carbon tetrachloride induced hepatotoxicity, glutamic oxaloacetic transaminase, glutamic pyruvic transaminase, lactic dehydrogenase, malondialdehyde values and glutathione S-transferase activity were measured in ICR mice. The activities of serum aminotransferase and the hepatic content of lipid peroxide after carbon tetrachloride-treatment were markedly increased than normal control but those levels were significantly decreased by the treatment of butanol fraction of Mori cortex radicis mathanol extract. Glutathione S-transferase activity was decreased by carbon tetrachloride than control, but that also inhibited by the treatment of butanol fraction of Mori cortex radicis methanol extract. These results demonstrate a possible hepatoprotective role of extracts of Mori cortex radicis against CCl4-induced hepatoxicity in vivo.