도토리 추출물의 3T3-L1 세포 분화억제 효과

김지연,이진,이창원,김애정,Kim, Ji-Yeon,Lee, Jin,Lee, Chang-Won,Kim, Ae-Jung 한국식품영양학회 2015 韓國食品營養學會誌 Vol.28 No.4

본 연구에서는 만성질환의 주요 위험인자인 비만을 예방하기 위한 식품소재로서 3T3-L1세포를 이용하여 탈피한 도토리의 항비만 효과를 알아보고자 하였다. 3T3-L1 세포에서 생존율(MTT assay)을 측정한 결과, AE와 AW 시료 모두 $500{\mu}g/mL$ 농도에서는 다소 생존율의 감소를 보여, $300{\mu}g/mL$를 최종 농도로 정하였다. 3T3-L1 세포의 지질축적 억제 효과를 측정한 결과, 농도 $100{\mu}g/mL$로 처리하였을 때 두 시료 모두 지질축적량의 증가를 보였으나, $200{\mu}g/mL$ 처리농도에서 AE 시료는 82%로, AW 시료는 74%로 감소되다가 $300 {\mu}g/mL$ 농도에서는 두 시료 모두 약 53% 수준까지 지질축적이 억제되었다. 3T3-L1 세포에서 중성지방 억제 효과를 확인한 결과, AE 시료의 경우 $200{\mu}g/mL$ 농도에서 11%의 감소율, $300{\mu}g/mL$ 농도에서 42% 수준의 감소율을 보였다. AW 시료도 $200{\mu}g/mL$ 농도에서 5%의 감소율과 $300{\mu}g/mL$에서 41%의 감소율을 보였다. 3T3-L1 세포의 ROS 생성량을 측정한 결과, 시료 농도 $200{\mu}g/mL$에서 AE는 42%, AW는 33%로 $300{\mu}g/mL$에서는 AE는 58%, AW는 52%로 ROS 생성량의 억제를 보였다. 3T3-L1 세포에서 mRNA 발현에 미치는 영향을 대조군과 비교하였을 때 두 시료(AE와 AW) 모두 $300{\mu}g/mL$ 농도에서 $PPAR-{\gamma}$은 54%와 38%, aP2는 40%와 18% 수준의 발현을 억제시키는 것으로 나타났다. 이상의 결과로 볼 때 탈피한 도토리는 3T3-L1 세포의 분화를 억제함으로써 새로운 항비만 소재로의 가능성이 있는 것으로 판단된다. This study aimed to investigate the suppressive effect of acorn extracts, by evaluating 70% ethanol extract (AE) and hot water extract (AW) using 3T3-L1 preadipocytes. We applied various levels (0, 100, 200, 300 and $500 {\mu}g/mL$) of AE and AW to 3T3-L1 preadipocytes. The cell viability of the 3T3-L1 preadipocytes was not affected by up $300 {\mu}g/mL$ of extracts, but was suppressed by level $500{\mu}g/mL$ of both AE and AW by 20% and 9% respectively. The accumulation of lipid droplets in differentiated 3T3-L1 preadipocytes was dose-dependently suppressed by AE and AW. Especially, at high concentrations ($300{\mu}g/mL$), AE (42%) was more effective than AW (41%). Reactive oxygen species (ROS) was also dose-dependently suppressed by treatment with AE (58%) and AW (52%). With regard to the mRNA related to differentiated 3T3-L1 preadipocytes, $PPAR-{\gamma}$ and aP2 were suppressed by treatment with AE (54 and 40%) and AW (38 and 18%). From our results, acorn extract (AE) has more suppressive effects than AW in differentiated 3T3-L1 preadipocytes. We therefore concluded that acorn has suppressive effects against obesity in differentiated 3T3-L1 cells due to antioxidation.

Acute exacerbation of interstitial lung disease; subgroup analysis for causes, risk factors for mortality rate, and steroid responsiveness

( Seung Hyun Yong ),( Ah Young Leem ),( Song Yee Kim ),( Kyung Soo Chung ),( Ji Ye Jung ),( Young Ae Kang ),( Young Sam Kim ),( Joon Chang ),( Moo Suk Park ),( Hye Jin Jang ) 대한결핵 및 호흡기학회 2019 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.127 No.-

Background: Interstitial Lung Disease (ILD) has known as a poor prognosis disease, particularly idiopathic pulmonary fibrosis (IPF). Corticosteroid is widely used for treatment of acute exacerbation (AE)-ILD. This study aims to clarify efficacy of corticosteroid use, and compare the mortality rate depending on the subgroups of ILD. Materials and Methods: We collected the data from the patients who have diagnosed ILD and visited emergency room (ER) with the respiratory symptoms from January 1, 2016 to December 31, 2018. We classified AE-ILD patients into 3 groups depending on methylprednisolone dose per kilogram. Also, we compared the mortality of IPF patients to that of non-IPF patients. Results: A total case of AE-ILD visited ER from 2016 to 2018 was 209 cases, including IPF cases (n=122) and non-IPF cases (n=87). We divided total patients (n=209) into three groups depending on steroid use, and these include group 1 of 0-0.49 mg/kg (n=78), group 2 of 0.5-0.99 mg/kg (n=58), and above 1.0 mg/kg (n=41), each. We found poor prognosis from the cases of IPF compared to non-IPF cases (p=0.029, OR 2.463). Furthermore, there was significant differences of mortality rate according to steroid dose (p=0.036, OR 1.712), CRP elevation (p=0.016, OR 1.004), and intubated case (p=0.000, OR 8.152). Also, we categorized IPF (n=122) to non-IPF cases (n=87) and analyzed the mortality rate. Most of the patients were death from ILD itself (n=23, 63.9%), Pneumonia(n=8, 22.2%), and Lung cancer (n=5, 13.9%). Bacterial infection (n=26) was dominant cause of AE, followed by fungal infection (n=15), and viral infection (n=10). Conclusions: This retrospective analysis of corticosteroid treatment shows more fatal outcome when we use high dose steroid in AE-ILD cases, and there was significant difference in mortality rate depending on the subgroup of ILD and medical background, such as intubation status, higher CRP level, and IPF cases.

항암화학요법 관련 오심과 구토 완화를 위한 비약물요법에 관한 연구동향

소향숙,최자윤,조인숙,김영재,김지영,김애숙,김옥미,김춘심,김현오,설영애,안정옥,이애리,이영자 성인간호학회 2003 성인간호학회지 Vol.15 No.3

Purpose: Purposes of this study were to understand the current trends on complementary therapy in relieving chemotherapy-induced nausea and vomiting and to suggest the future research direction. Method: Subjects were selected on CINAHL, MEDLINE, Korean Academy Data Base from 1980 to 2001 which used nausea, vomiting, chemotherapy and complementary therapy as key words in experimental studies. Eight korean articles and twenty-one international articles were analyzed in terms of general characteristics, research methods, and types of complementary therapy. Data were analyzed by using descriptive statistical methods. Result: Since 2000, researchers have more actively used complementary therapy. In subject characteristics, mean age was 35.5 years old, 45% of the researchers were performed with high level of incidence of chemotherapy induced vomiting, 14% of them set limit of consecutive cycle during research, and 65% of them did not comment the selecting criteria of sample. About 60% of them were designed post-test only control group: 35% used INV by Rhodes, 31% used Likert scale, and 24% used VAS for dependent variable. Muscle relaxation therapy was mostly applied for relief of nausea and vomiting. Conclusion: Further studies will be needed to control extrinsic variables affecting nausea and vomiting in research design and to accumulate evidence with studies applying various complementary therapies.

신경세포의 Outgrowth 향상을 위한 마이크로 파이버 지지체와 전단응력의 영향

김인애,박수아,김영직,김수향,신호준,이용재,신지원,신정욱 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-

We introduced mechanical stimuli and micro patterned substrate with micro fibers to investigate the effects of those on neurite outgrowth along with nerve growth factor (NGF) in vitro. Micro fiber substrates were fabricated using an electros pinning process. And PC-12 cells cultured on substrates were simulated with newer growth factor and laminar flow shear stress in a fluid flow system. The results suggest that micro fiber substrates and fluid-induced shear stress are promising for simulating neuronal regeneration in a desired direction.

두경부 전산화 단층촬영시의 주요 장기선량, 유효선량 및 위험도

김애지,나경수,조봉혜 大韓口腔顎顔面 放射線學會 1995 Imaging Science in Dentistry Vol.25 No.1

The organ or tissue doses were determined with head and neck phantom measurement for multiple axial scans (36 slices), multiple coronal scans (13 slices), 3 types of single axial scans(orbit, maxillary sinus and mandibular canal) and single coronal scan(maxillary sinus). For each scan sequence 30 TLDs were placed in selected sites(16 internal site and 14 external sites) in a tissue-equivalent phantom. The exposure was made at 120kVp, 500mAs with 5 mm slice width. The results were as follows: 1. In multiple axial scans, the greatest effective dose recorded was that delivered to the thyroid glands(2.77 mSv) and the least was that received by the skin(0.05 mSv). From these data, stochastic effects were ?? and ??, respectively. 2. In multiple coronal scans, the greatest effective dose recorded was that delivered to the salivary glands(0.58 mSv) and the least was that received by the skin(0.01 mSv). From these data, stochastic effects were ?? and ??, repectively. 3. Among single axial scans, the greatest effective dose recorded was that delivered to the salivary gland(0.38 mSv) in maxillary sinus scan. From this data, stochastic effect was ??. 4. In single coronal scan, the greatest effective dose recorded was that delivered to the salivary gland(0.01 mSv). From this data, stochastic effect was ??. 5. The equivalent dose measured that delivered to the lens of the eyes was 69.64 mSv in multiple axial scan, 39.32 mSv in multiple coronal scan and 36.77 mSv in single axial scan(orbit).

삶의 질 향상과 지속가능한 지역경쟁력 : 호순환 관계의 모색

장지상,이성진,조정재,권우현,김애경 慶北大學校 1997 經商論集 Vol.25 No.1

과학영재교육 교사 교수방법 전문지식의 수준 분석

서혜애,박경희,박지은 이화여자대학교 교과교육연구소 2007 교과교육학연구 Vol.11 No.1

본 연구에서는 우리나라 과학영재교육을 담당하는 교사들의 과학영재교육 교수방법 전문지식의 수준을 조사하는 데 목적을 두었다. 2005년 기준 전국 16개 시·도 교육청 산하 영재학급 및 영재교육원에서 과학영재교육을 담당하는 교사 수는 총1,883명으로 조사되었다. 이 가운데 531명(28.2%)의 과학영재교육 교사는 ‘과학영재교육 교사 교수방법 전문지식 측정도구(서혜애·박경희, 2005)’에 응답하였으며, 응답한 교사의 교수방법 전문지식 수준은 최종학력, 연수이수여부, 학교급에 따라 차이가 있는 것으로 나타났다. ‘과학지식 및 과학교육학 지식’과 ‘영재교육학 지식’은 영재교육 연수 이수 유무와 관련 없이 교사의 성별 및 최종학력에 따라 차이를 보였으며, ‘과학영재교육과정 지식’은 교사가 어떤 영재교육 연수를 이수했는지, 어떤 학교급을 지도하고 있는 지에 따라 차이가 있는 것으로 나타났다. ‘교사 전문성 계발 지식’은 학교급, 성별에 따라 차이를 보였다. 연구결과에 근거하여 다음과 같이 과학영재교육의 질을 제고하는 방향을 제안하였다. 첫째, 효과적 과학영재교육교사 연수를 개발하기 위해서는, 연수기관은 연수 대상 교사의 학교급에 따라 연수프로그램의 교육내용을 달리하여 구성해야 할 것이다. 둘째, 과학영재교육 교사 임용정책에서는 최종학력 조건을 강화하고 교사 전문성 계발의 동기 수준을 고려하는 것이 바람직할 것이다. The research aims to investigate the status of teacher's professional knowledge level of teaching the gifted in science. As of 2005, there were 1,883 teachers who teach at gifted educational institutions affiliated with sixteen provincial offices of educations in Korea. Research subjects include 531 out of 1,883 teachers (28.2%) and they responded to the 'Science Teacher Scale of Professional Knowledge for Teaching the Gifted' (Seo & Park, 2005). It was found that there were significant differences in the levels of science teachers' professional knowledge for teaching the gifted in terms of highest degrees earned, school level, completion of inservice training programs of gifted education, etc. It was also found that ‘subject matter content knowledge in science and pedagogical content knowledge in science’ and ‘general pedagogical knowledge in gifted education’ varied along teachers' gender and highest degrees earned. ‘Science curriculum knowledge in gifted education’ were varied along completion of inservice teacher training programs and school levels. In conclusion, in order to raise the quality of gifted education, first, host institutions of inservice teacher training programs of gifted education are recommended to provide program contents in consideration with different schools levels of participating teachers. Second, policy makers may strengthen requirements of highest degrees earned for employing teachers in gifted education.

정수공정에서 이취미물질 제거에 관한 연구

김지태,한명애,곽현,배성렬 漢陽大學校 工學技術硏究所 2000 工學技術論文集 Vol.9 No.1

이취미물질중에서 페놀, Geosmin, 2-MIB를 선정하여 응집제(PACS)와 흡착제(PAC) 및 산화제(Cl2, ClO2)로 처리하였을 때 제거율을 알아보았다. 페놀의 경우 이산화염소(ClO2)와 분말활성탄(PAC)으로 처리하였을 때 제거효율이 높았고, Geosmin과 2-MIB는 분말활성탄(PAC)으로 처리하였을 때 제거효율이 높았다. 그러나 페놀, Geosmin, 2-MIB 모두 응집제(PACS), 염소(Cl2)로 처리하였을 경우에는 제거효율이 거의 없음을 알 수 있었다. The removal ratio of phenol, geosmin, and 2-MIB selected in odor and taste causing materials was investigated, when water was treated with coagulant(PACS), adsorbent(PAC), and oxidants(Cl2, ClO2). Phenol was removed at a relatively higher rate by the treatment with CIO2 and PAC(Powder Activated Carbon). The other side, geosmin and 2-MIB were removed at a higher rate by the treatment with PAC. But it was found that the treatment with coagulant(PACS) and chlorine(Cl2) for the removal of phenol, geosmin and 2-MIB was little removal efficiency.

여자체조 종목에서 국가 간 시작 점수(Start Valus)의 완성도

안애정,김윤지 韓國體育大學校 2002 論文集 Vol.25 No.-

To examine completion degree amongst gymnasts from different countries and bonus points acquired by the gymnasts from degree of difficulty based on flow of movements, this study compares gymnasts starting points and acquired points in four different competitions (the long horse, the parallel bars, the balance beam, the floor exercise) among the gymnasts from South Korea, China, Japan, and North Korea, who participated in the Busan Asian Games 2002. The results of this study are as follow: 1. North Korean gymnasts acquired high points in the long horse and the parallel bars, while Chinese gymnasts showed their strength in the balance beam and the floor exercise. Despite the relative higher points acquired in the balance beam and the floor exercise than North Korean gymnasts, South Korean team showed its weakness in long horse and the parallel bars. 2. In the bonus points acquired from flow of movement, Chinese team scored the highest while South Korean team scored the lowest. 3. In comparing the starting points and acquired points among the four competitions, little variations were shown among gymnasts from China Japan. However the variations were high among gymnasts from South and North Korea. 4. North Korean team showed a highest average score in the difference between starting points and acquired points in four competitions. A few suggestions can be made in order to improve the performance of Korean gymnasts based on the analysis of this study. The statistically low scores in bonus points acquired in flow of movements indicate that there is a room for improvements in developing new techniques and higher degree of difficulty movements. While South Korean gymnasts have equal capability in technical aspects in comparison with Japanese gymnasts, they showed higher degree of difference in starting points and final score. This difference indicates that more practice should be concentrated on mastering the movements to improve the degree of completion. With focused exercises and experiences gained from various International games, good performance by Korean gymnasts can be expected in the upcoming international events, as well as in the 2004 Olympics in Greece.

일 방문보건사업 대상노인들의 건강상태, 우울, 자아통합감 및 방문에 대한 만족도 조사 : an evaluation study for a community health visiting program

유애광,김옥란,정경옥,강지연 김천과학대학 1999 김천과학대학 논문집 Vol.25 No.-

The objectives of this study are to explore the health status, depression and self-integration of living-alone elderly and to evaluate a community health visiting program managed by nursing faculties and students. Study subjects were 28 residential or institutional living-alone elderly who were the clients of community health visitng program in department of nursing, Kimcheon Science College. Each data was collected through an interview with the nursing students who visit the client's home once a week. The major findings of the study were as follows: (1) About 89% of study subjects considered they were not in good health status and those who thought they were unhealthy compared to other people experienced more accident, trauma or disease. (2) The depression scores were negatively correlated with self-integration scores. Those who benefit governmental support show higher depression and lower self-esteem than that of economically independent subjects. The higher health status they were in, the lower depression and higher self-integration they felt. (3) Most subjects expressed satisfaction to the home visiting services offered by nursing students. However, the satisfaction rate for visible outcome, relevancy of service and nursing skill were relatively lower than other items like preference, attitude of students or visiting itself. In conclusion most living-alone elderly are in low physical and psychological health state, and health promotion programs like home visiting services should be developed.