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Indole-3-carbinol과 Genistein에 의한 자궁근종세포의 성장억제 효과
정희웅 ( Hee Woong Jeong ),김윤옥 ( Yun Ok Kim ),신소진 ( So Jin Shin ),권상훈 ( Sang Hoon Kwon ),차순도 ( Soon Do Cha ),조치흠 ( Chi Heum Cho ) 대한산부인과학회 2007 Obstetrics & Gynecology Science Vol.50 No.6
Objective: To determine whether Indole-3-carbinol (I3C) can enhance the inhibitory effect of genistein on a human uterine leiomyoma cells. Methods: Five uterine leiomyoma tissues were obtained from hysterectomies conducted on the benign diseases and cultured primarily. MTS reduction assay was carried out to determine the viability of human uterine leiomyoma cells. Cell cycle analysis for I3C and genistein treated human uterine leiomyoma cells was done by Fluorescent activated cell sorter (FACS) analysis. To detect the presence and expression of cell cycle related proteins was done by Western blot analysis. Results: I3C and genistein induced growth inhibition in a dose dependent manner, treatment with 100 μmol/L I3C and 100 μmol/L genisten blocked 60% cell growth. FACS results showed that treatment with the I3C and genistein increased the percentage of cells in G2/M phase and decreased S phase. From Western blot analysis it revealed I3C and genistein induced the expression of p53, p21, and p27 increasing. Reduced expression of cyclin B1 and cyclin E were detected in treatment with I3C and genistein. The expression levels of these proteins correlate with G2/M cell cycle arrest. Activation of caspase pathway and fragmentation of PARP did not take place. Conclusions: These results demonstrate that I3C enhances genistein-mediated uterine leiomyoma cell growth inhibition through the cell cycle arrest at G2/M phase by decreasing the production of cyclin B1. Because of the synergistic effect of I3C and genistein, the potential exists for the therapeutic efficacy of each phytochemical when used in combination.
기성콘크리트 부재의 현장생산 리스크 평가를 위한 체크리스트 개발
임지영 ( Lim¸ Jeeyoung ),정희웅 ( Jeong¸ Hee Woong ),김대영 ( Kim¸ Dae Young ) 한국건축시공학회 2021 한국건축시공학회지 Vol.21 No.5
In previous studies, it was confirmed that through the in-situ production of precast concrete members, costs could be reduced by 14.5-39.4% compared to in-plant production. In particular, it was confirmed that the factory owner did not make a contract if it did not earn more than 20% of the production cost. If precast concrete members are produced in-situ under the same conditions, the quality equivalent to that of factory production can be secured. As it is advantageous in terms of cost and quality, precast concrete members must be produced in-situ. However, it is difficult to produce all quantities in-situ due to time and various other constraints. This is because in-situ production is avoided due to anticipated risks during the project management process. However, if the risk factors are analyzed before performing in-situ production of precast concrete members, it will increase the opportunity for in-situ production. Therefore, this study develops a checklist for evaluating the risk of in-situ production of precast concrete members. By applying the checklist to one case site, it was verified that risk factors can be evaluated easily and quickly. As a result, it was analyzed that sites with a high building coverage ratio are classified as high-risk sites because it is difficult to secure usable area for production and storage. The developed checklist efficiently evaluates the risk factors of in-site production, and makes it possible for the operator to determine the risk factors, which can change frequently during project execution, and respond according to the situation.
임신중 수술처치한 자궁부속기 종괴의 임상적 , 병리학적 그리고 예후적 특징
이현주 ( Hyeon Ju Lee ),정기성 ( Ki Sung Chung ),지병주 ( Byung Ju Ji ),정희웅 ( Hee Woong Jeong ),이용호 ( Young Ho Lee ),엄상탁 ( Sang Tak Eum ) 대한산부인과학회 2001 Obstetrics & Gynecology Science Vol.44 No.7
Objective :The purpose of this study was to evaluate retrospective data concerning patients with adnexal masses that were managed surgically during pregnancy and their effect on fetal outcome. Methods :Data were reviewed concerning pregnant women who requited surgery at our hospital from January 1991 to December 2000 for an adnexal mass. Results :In the recent 10 years at our hospital a total of 47 pregnant women aged 27.9±3.6 years were diagnosed with adnexal masses that required surgery. The masses were removed at 12.3±3.7 weeks of gestation and maximum diameter was 8.4±2.3 cm. The pathologic features of the 47 lesions were as follows : 17 mature cystic teratomas, 14 epithelial origins (12 serous cystadenoma, 2 mucinous cystadenoma), 9 functional cysts, 4 endometriotic cysts, 2 paraovarian cysts, 1 malignant neoplasm. Of the 41 patients for whom the outcome of pregnancy was available, 2 (4.2%) gave preterm birth befare 37 weeks, while 4 (8.5%) experienced spontaneous abortion. There were not any perinatal death for the 43 infants. Conclusion .Although our studies are smaller for confinnation, so larger studies are required, but our results suggest that an adnexal mass may be associated with an adverse fetal outcome. Surgical intervention at<22 weeks of gestatian might not have been related to the advem fetal outcomes.
이현주 ( Hyun Joo Lee ),신현찬 ( Hyun Chan Shin ),정희웅 ( Hee Woong Jeong ),정철권 ( Chul Gwon Chung ),권민정 ( Min Jeong Gwon ),엄상탁 ( Sang Tag Eum ),박경도 ( Kyung Do Park ) 대한산부인과학회 2003 Obstetrics & Gynecology Science Vol.46 No.6
Objective : The purpose of our study is to find out the therapeutic effectiveness, reproductive outcome, and the diagnostic pathologic findings of the patients treated with resectoscopy. Methods : We examined 110 patients who complained infertility, abnor
이성재(Lee Sung-jae),윤일혜(Yoon Il-hae),정희웅(Jeong Hee-woong),이상호(Lee Sang-ho) 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2
The purpose of this study was to analyze how the front-space can affect environment of walking space and find out the composition of the front-space for making application plan. After classify the front-space of a department store by 4 style; same level, piloti, stair, sunken, by the classification research the front-space for analysis and comparison. Being based on the research, this study say the improvement plan.
초고층 건축물 수직조닝별 연돌효과의 원인 및 해결 방안 분석
신상욱 ( Shin¸ Sang Wook ),류종우 ( Ryu¸ Jong Woo ),정희웅 ( Jeong¸ Hee Woong ),김대영 ( Kim¸ Dae Young ) 한국건축시공학회 2021 한국건축시공학회지 Vol.21 No.5
Urban overcrowding has created an explosive supply and demand for high-rise buildings. High-rise buildings are contributing to enhancing the image of the city by serving as focal points, but due to the stack effect, malfunction of elevator doors, difficulties in opening and closing the doors and windows of the outer wall, smoke and odors spreading to the upper floors, noise, energy loss, fire and pollutants have been causing various unexpected problems such as rapid spread of fire. This study classified high-rise buildings according to their vertical zoning, analyzed the causes of and solutions to the stack effect, and derived design and construction methods. Through the initial plan to block the outside air and securing airtightness through precise construction, we sought ways to secure the airtightness inside and outside the building by actively blocking the airflow from the lower floors. In addition, the facility solution can be a measure to reduce the specific phenomena caused by the stack effect, but it should only be applied to the minimum extent because the potential for secondary damage is high. This study emphasized the need for systematic stack effect management by suggesting design and construction measures for each vertical zoning of the causes and countermeasures of the stack effect. It is expected that this study will be helpful not only for design and construction, but also for building maintenance.