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가지 물추출물의 3T3-L1 지방전구세포 분화 억제효능
이미경,류청,황방연,김선여,이재학,Lee, Mi-Kyeong,Liu, Qing,Hwang, Bang-Yeon,Kim, Sun-Yeou,Lee, Jae-Hak 대한약학회 2011 약학회지 Vol.55 No.4
Abnormal growth of adipocyte characterized by increased cell numbers and differentiation is considered as an major pathological characteristic feature in obesity. Thus, inhibition of mitogenesis of preadipocytes and their differentiation to adipocytes would be beneficial for the prevention and inhibition of obesity. In the present study, we attempted to evaluate anti-adipogenic activity of eggplants (the fruits of Solanum melongena L.) employing preadipocytes cell line, 3T3-L1 as an in vitro assay system. Water extract of eggplants significantly inhibited adipocyte differentiation when treated during adipocyte differentiation process, as assessed by measuring fat accumulation using Oil Red O staining. Eggplant extract, however, showed little effects on fully differentiated adipocytes. Eggplant didn't show significant toxicity up to 500 ${\mu}g$/ml to the 3T3-L1 cells. Further studies with interval treatment demonstrated that eggplant exerted inhibitory activity on adipocyte differentiation via acting on early stage of adipogenesis. Conclusively, eggplants are suggested to be beneficial for the prevention of obesity.
사염화탄소로 독성을 유발시킨 일차배양 간세포에 미치는 G009의 효과
이미경(Mi Kyeong Lee),김홍표(Hong Pyo Kim),이준우(June Woo Lee),정훈(Hoon Jung),이승룡(Seoung Yong Lee),김영중(Young Choong Kim) 대한약학회 1998 약학회지 Vol.42 No.1
G009, a polysaccharide isolated from the mycelia of Ganoderma lucidum IYO09, showed a hepatoprotective activity against CCl4 induced cytotoxicity in primary cultured rat hepatocytes. Incubation of CCl4-intoxicated hepatocytes with G009 significantly reduced the levels of glutamic pyruvic transaminase and sorbitol dehydrogenase released from hepatocytes in the medium. G009 showed antioxidative effect by elevating the activities of glutathione reductase and superoxide dismutase, and the content of glutathione in CCl4-intoxidcated primary cultured rat hepatocytes. Furthermore, G009 significantly elevated glutathione-S-transferase activity in CCl4-intoxicated primary cultured rat hepatocytes. G009 also reduced the production of malondialdehyde, a byproduct of lipid peroxidation. From these results, it could be concluded that G009 exerted hepatoprotective activity against CCl4-induced cytotoxicity through antioxidation.
조직공정성과 조직시민행동 간의 관계에서 기능별 조직문화의 조절효과에 관한 연구
이미경(Lee, Mi Kyeong),전상길(Jeon, Sang Gil) 한국인적자원관리학회 2016 인적자원관리연구 Vol.23 No.1
기업은 목표를 달성하기 위해 필요한 기능별로 조직을 구성하고, 조직구성원은 기능에 속해 자신의 직무를 부여받는다. 즉, 조직 관점에서의 기능이나 구성원 관점에서의 직무는 직원들이 처한 상황, 책임, 목표 등 다양한 것을 나타낼 수 있는 중요한 요인 중 하나이다. 또한, 이는 기능 및 직무에 따라 필요한 규범혹은 선호하는 조직문화 역시 다르게 나타날 수 있음을 의미한다. 본 연구는 H자동차 연구개발조직을 대상으로 차량개발의 기능을 ‘디자인’, ‘설계’, ‘시험’, ‘PM’, ‘STAFF’로 구분하고, 기능별로 조직공정성이 조직시민행동에 미치는 영향과 조직문화의 조절효과에 대해 살펴보았다. 분석결과를 요약해보면 다음과 같다. 첫째, 조직공정성은 ‘PM’을 제외하고 나머지 4가지 기능에서 조직시민행동에 정(+)의 영향을 주는 것으로 나타났다. 둘째, 조직공정성과 조직시민행동 간의 관계에서 조직문화의 조절효과를 기능별로 살펴보는 탐색적 접근을 위해 각 문화를 각각 투입하여 회귀분석을 실시함으로써 조직시민행동에 미치는 조직문화의 영향력도 기능별로 달라질 수 있음을 밝혔다. 이처럼, 본 연구는 조직공정성과 조직시민행동의관계에서 각 기능별 조직문화의 조절효과의 차이를 살펴봄으로써, 기능과 직무의 특성을 고려한 조직 관리의 실질적인 방안을 제시하는 것에 의의를 가진다. Various functions that are constructed by company’s needs effect on the organizational members’ situation, responsibilities, and goal. It means that the organizational members could have the different perception, attitude, and behavior by various functions. This study adopted the survey based-data of the members within a big domestic company’s headquarter of research and development and grouped the members by various functions. The groups were named ‘Design part’, ‘Engineering design part’, ‘Test part’, ‘PM(Project Management) part’, and ‘STAFF part’. The study pursued verifying the differences of the effect of Organizational justice and Organizational culture on the Organizational Citizenship Behavior(OCB) by the groups. It also verified the differences of the moderating effect of Organizational culture on the relationship between Organizational justice and OCB by the groups. The followings are abridged results. First of all, Organizational justice had positive effect on OCB in all groups except PM. Secondly, the results of Organizational culture’s moderating effect were also showed differently according to various functions in R&D. With these results, this paper has meaning that it verified the differences of various functions and suggested substantive way for organizational management.
정신건강의학과 안정병동 내 병원학교교실 참여자의 학교복귀율과 만족도
이미경(Mi-Kyeong Lee),방수영(Soo-Young Bhang),안준호(Joon-Ho Ahn),박장호(Jang-Ho Park),최현경(Hyun-kyoung Choi) 대한소아청소년정신의학회 2013 소아청소년정신의학 Vol.24 No.3
Objectives:The objective of this report is to identify the utilization of hospital school service during hospitalization among patients in their childhood and adolescence with psychiatric disorders. Methods:We retrospectively reviewed the medical record of child and adolescent psychiatric who were hospitalized during March 2009 through October 2012. We compared the one-year successful schooling and outpatient follow up rate between users and nonusers of the inpatient hospital school service. The hospital schooling experiences of the users were investigated upon follow-up visits to the outpatient clinic. Results:Sixty-three students received hospital school service during hospitalization among total 122 child and adolescent inpatients. Hospital school participants showed a significantly higher school reentry rate (61.9%) than non-participants (40.7%). However, there was no difference on follow up rate between the two groups. More than 60% of the 22 interviewed participants expressed an above-average level of satisfaction about hospital school service. Conclusion:Many patients with mental illness experience difficulty in receiving school education during treatment. That induces deterioration in disease, academic failure, poor social skills, low self-esteem, economic difficulties, and future job opportunities. The results of this study emphasize the importance of hospital school service and offer useful guidance for hospital school operation.