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일차 배양 흰쥐 간세포에서 사염화탄소 유발 세포독성에 대한 수종 생약 용매 분획의 억제효과 검색과 in vivo 간보호 작용 평가
김영숙(Young Sook Kim),경종수(Jong Su Kyung),박기현(Ki Hyun Park) 대한약학회 1996 약학회지 Vol.40 No.1
Solvent fractions were prepared from traditional herbal drugs which of methanol extracts inhibited CCl4-induced cytotoxicity in primary cultured rat hepatocytes and continuously assayed their effects. Ethylacetate and n-buthanol fractions from Cibotii Rhizoma and chloroform fraction from Gelatina Nigra inhibited the release of LDH and GPT from CCl4-treated hepatocytes, respectively. Water fraction (WAR) among solvent fractions from Astragali Radix showed the most potent inhibitory effect on the release of GOT or GPT by treatment with CCl4. All of solvent fractions prepared from Eucommiae Cortex had no effect on CCl4-induced cytotoxicity. Chloroform and ethylacetate fractions from Rehmanniae Radix Preparata increased the release of GPT from CCl4-treated hepatocytes. n-Hexan, chloroform or ethylacetate fraction from 5 herbal drugs increased the release of LDH, GOT or GPT from normal hepatocytes at the dose of 1.Omg/ml. Administration of WAR suppressed the elevation of GOT, ALP activities and MDA contents in the serum as well as in the liver tissue of CCl4-intoxicated rats. Based on these results, isolation of antihepatotoxic substances from WAR is under the process.
랫드에서 potassium bromate에 의한 신장 및 간의 산화적 손상에 대한 홍삼 사포닌의 방어효과
황석연(Seok-Youn Hwang),강은경(Eun Kyung Kang),위재준(Jae Joon Wee),경종수(Jong-Su Kyung),조정희(Jung-Hee Cho),김윤배(Yun-Bae Kim) 한국실험동물학회 2004 Laboratory Animal Research Vol.20 No.3
Potassium bromate (KBrO₃), used as a food additive in bakery, has been found to cause problems due to its strong pro-oxidant property. It has been reported that Panax ginseng possesses protective effects against a variety of oxidative damage induced by chemicals such as carbon tetrachloride, acetaminophen, chrome or hyperoxia. Therefore, this study was carried out to investigate the effect of Korean red ginseng saponin (RGS) against oxidative damage induced by KBrO₃ based on the parameters in blood, tissues and urine. Male Sprague-Dawley rats were orally administered with RGS (75 ㎎/㎏) for 2 days, challenged intraperitoneally with KBrO₃ (300 ㎎/㎏) 2 hr after the final administration of RGS, and 48 hr later, blood, kidney and liver tissues, and urine were collected. In hematological analysis, KBrO₃ remarkably increased white blood cells, which was somewhat reduced by treatment with RGS. In blood biochemistry, KBrO₃ markedly increased serum creatinine, blood urea nitrogen, aspartate aminotransferase and alkaline phosphatase, while it decreased uric acid and Ca⁺⁺ levels, indicative of renal and hepatic toxicities. Such changes were greatly attenuated by RGS treatment. Also, RGS recovered KBrO₃-induced decrease in K⁺ level, although it did not affect the changes in Cl⁻ and osmolarity. In addition, the increases in malondialdehyde contents in kidneys and liver caused by KBrO₃ were fully reversed by RGS. Furthermore, urinary excretion profiles of malondialdehyde and its adducts were affected by RGS treatment; i.e., whereas an increase in excretion of N-ε-(2-propenal)lysine following KBrO₃ challenge was markedly lowered, N-α-acetyl-ε-(2-propenal)lysine and free malondialdehyde were greatly increased by RGS administration. Summarizing the above results, it is suggested that RGS exert protective effect against the renal and hepatic toxicities of KBrO₃ by not only reducing oxidative radical reactions, but also enhancing renal excretion of toxic by-products.
이상호(Lee Sang-Ho),유승남(Yu, Seung-Nam),경종수(Kyung, Jong-Soo),한창수(Hahn Chang-Su) 한국산학기술학회 2009 한국산학기술학회논문지 Vol.10 No.8
세계적으로 로봇산업이 거대시장으로 급성장할 것으로 예상되면서, 많은 국가에서 정책적으로 로봇산업 발전 을 추진하고 있다. 이러한 추세에 발맞춰 대한민국에서도 정부의 전략적 주도하에 다양한 분야에서의 로봇개발이 수 행되고 있다. 이러한 연구개발 프로그램들은 산학협력을 통해 이루어지고 있으며, 더 나아가 기업의 애로기술을 해소 하기 위한 기술적인 지원 및 교육을 추구하는 인력양성 및 산학협력 확산 연계 프로그램을 포함하고 있다. 본 논문에서는 이러한 산학협동 프로그램의 잠정적인 성과에 대해 논하였다. 우선 차세대 특성화 계획에 포함된 각 각의 프로그램을 설명하고, 로봇 개발과 관련한 인력양성의 성과를 평가하였다. 마지막으로 이러한 프로그램들의 지 속적이고 바람직한 발전을 위한 방안을 고찰하였다. As expected that a robot-industry will grow up rapidly toward a huge market, many countries try to develop the official policies to support a robot-industry. Following this trend, many robot researches are proceeded in the various technical areas by the government-initiated R&D strategies in Korea. These R&D programs are archived by academic-industrial collaboration and furthermore, include the disseminated linkage of academic-industrial collaboration and the human resource development program which pursues the problem solving and technical training for companies suffered by several technical difficulties. This paper shows the several analyses and considerations of provisional results of these collaboration programs. First, each program of specialized plan for next generation is reviewed and the accomplishment of human resource development for robot research is evaluated. Finally, several considerations are represented for continuous and desirable expansion of these programs.