Histone deacetylase 3 is selectively involved in L3MBTL2-mediated transcriptional repression

Yoo, Jung-Yoon,Choi, Kyung-Chul,Kang, HeeBum,Kim, Young Jun,Lee, Jeongmin,Jun, Woo Jin,Kim, Mi-Jeong,Lee, Yoo-Hyun,Lee, Ok-Hee,Yoon, Ho-Geun Elsevier 2010 FEBS letters Vol.584 No.11

<P><B>Abstract</B></P><P>This is the first report that L(3)mbt-like 2 (L3MBTL2) specifically interacts with the histone deacetylase domain of histone deacetylase 3 (HDAC3) via its MBT domain. Here, we show that L3MBTL2 selectively interacts with HDAC3, but not other class I HDACs. An in vitro peptide-binding assay demonstrated the specific association of HDAC3 with methylated histone-K20 tail and L3MBTL2. Furthermore, depletion of HDAC3 resulted in a decrease of methylated K20-H4, as well as an increase in acetylated histone H3. Consequently, HDAC3 knock-down selectively suppressed L3MBTL2-mediated transcriptional repression. Taken together, our results reveal the concerted action of both HDAC3 and L3MBTL2 in histone deacetylation and methylation-dependent transcriptional repression.</P><P><B>Structured summary</B></P><P>MINT-7719975: <I>L3MBTL2</I> (uniprotkb:Q969R5) and <I>HDAC3</I> (uniprotkb:O15379) <I>colocalize</I> (MI:0403) by <I>fluorescence microscopy</I> (MI:0416)</P><P>MINT-7719941, MINT-7719921: <I>L3MBTL2</I> (uniprotkb:Q969R5) <I>binds</I> (MI:0407) to <I>HDAC3</I> (uniprotkb:O15379) by <I>pull down</I> (MI:0096)</P><P>MINT-7719991: <I>HDAC3</I> (uniprotkb:O15379) <I>physically interacts</I> (MI:0915) with <I>L3MBTL2</I> (uniprotkb:Q969R5) by <I>anti bait coimmunoprecipitation</I> (MI:0006)</P><P>MINT-7719958: <I>L3MBTL2</I> (uniprotkb:Q969R5) <I>physically interacts</I> (MI:0915) with <I>HDAC3</I> (uniprotkb:O15379) by <I>anti tag coimmunoprecipitation</I> (MI:0007)</P><P>MINT-7719897: <I>HDAC3</I> (uniprotkb:O15379) <I>physically interacts</I> (MI:0915) with <I>L3MBTL2</I> (uniprotkb:Q969R5) by <I>two hybrid</I> (MI:0018)</P>

위절제술 환자의 표준진료지침 개발 및 적용 효과

김은희,김철규,이순교,김순덕,이혜옥,권정순,이경미,이민미,심순미,유용만,신종식,강은희,이상일,김병식,오성태,육정환,박수길 한국의료QA학회 2003 한국의료질향상학회지 Vol.10 No.2

Background : Gastric cancer is the most common malignant tumor in Korea. surgical operation is one of the major treatment modalities for gastric cancer patients. Therefore, gastrectomy is one of the most common procedures in General Surgery. There were variation in length of hospital stay and medical treatment for gastrectomy between three surgeons at Asan Medical Center. Clinical pathways have received considerable attention as a tool for recucing the medical practice variation, increasing the efficiency of care process, and improving the quality of care. The aim of this study was to evaluate the effect of a clinical pathway for gastrectomy in gastric cancer patients. Methods : The clinical pathway for gastrectomy was developed and implemented by a multidisciplinary group in Asan Medical Center. A computerized clinical pathway program was developed and revised after a pilot test. A total of 145 patients underwent gastrectomy by three surgeons at Asan Medical Center. We compared the length of hospital stay, patient satisfaction, and unplanned readmission rate between the pre-pathway group(n=67) and the post-pathway group(n=78). We also investigated the degree of satisfaction among the physicians and nurses who were main end-users of the clinical pathway. Results : The clinical pathway was applied to all target patients. The average length of hospital stay was shortened from 12.7days to 10.6days(p<0.01). The degree of patient satisfaction with the care process changed from 90.3% to 89.2% after the implementation of the clinical pathway, but the difference was of satistically significant(p=0.761). Unplanned readmission rate was 2.9% in the pre-pathway group. More than 90% of physicians and nurses answered that the clinical pathway had been a useful tool in their medical practice. Conclusions : The findings of the study demonstrated that implementation of the clinical pathway for gastrectomy produced substantial reduction in the length of hospital stay while improving the quality of patient outcomes. The computerized clinical pathway program can be used as one of the powerful patient management tools for reducing the practice variations and increasing the efficiency of care process in Korea hospital settings.

한국인 직무 스트레스 측정도구의 개발 및 표준화

장세진,고상백,강동묵,김성아,강명근,이철갑,정진주,조정진,손미아,채창호,김정원,김정일,김형수,노상철,박재범,우종민,김수영,김정연,하미나,박정선,이경용,김형렬,공정옥,김인아,김정수,박준호,현숙정,손동국 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.4

Background and Purposes: Over the past three decades, numerous studies performed in Korea have reported that job stress is a determinant risk factor for chronic diseases and work disability. Every society has its own culture and occupational climate particular to their organizations, and hence experiences different occupational stress. An occupational stress measurement tool therefore needs to be developed to estimate it objectively. The purpose of this study is to develop and standardize the Korean Occupational Stress Scale (KOSS) which is considered to be unique and specific occupational stressors in Korean employees. Subjects and Methods: Data were obtained from the National Study for Development and Standardization of Occupational Stress (NSDSOS Project: 2002-2004). A total of 12,631 employees from a nationwide sample proportional to the Korean Standard Industrial Classification and the Korean Standard Occupational Classification were administered. The KOSS was developed for 2 years (2002-2004). In the first year, we collected 255 items from the most popular job stress measurement tools such as JCQ, ERI, NIOSH and OSI, and 44 items derived from the a qualitative study (depth interview). Forty-three items of KOSS, in the second year, were retained for use in the final version of the KOSS by using Delphi and factor analysis. Items were scored using conventional 1-2-3-4 Likert scores for the response categories. Results: We developed eight subscales by using factor analysis and validation process: physical environment (3 items), job demand (8 items), insufficient job control (5 items), interpersonal conflict (4 items), job insecurity (6 items), organizational system (7 items), lack of reward (6 items), and occupational climate (4 items). Together they explained 50.0% of total variance. Internal consistency alpha scores were ranged from 0.51 to 0.82. Twenty-four items of the short form of the KOSS (KOSS-SF) were also developed to estimate job stress in the work setting. Because the levels of the subscales of occupational stress were gender dependent, gender-specific standard norms for both the 43-item full version and the 24-item short form using a quartile for the subscales of KOSS were presented. Conclusion: The results of this study suggest that KOSS might be an appropriate measurement scale to estimate occupational stress of Korean employees. Further and more detailed study needs to be conducted to improve the validity of this scale.

Factors influencing choosing teaching as a career: South Korean preservice teachers

Jeong‑Ae Lee,Mi Ok Kang,Bitnara Jasmine Park 서울대학교 교육연구소 2019 Asia Pacific Education Review Vol.20 No.3

This study validated the underlying factor structure of the Factors Influencing Teaching (FIT)-Choice survey in the South Korea context and examined motivations and perceptions of 903 Korean preservice teachers by major demographic characteristics. Secondary preservice teachers reported significantly higher values than elementary preservice teachers for Qualification fit and desire to teach and Task return. Male preservice teachers believed more strongly than female preservice teachers that they chose the teaching profession because of Qualification fit, Influencing others, and Task return. Compared to freshmen/sophomores, juniors/seniors reported significantly higher values for Task demand. Participants with low- to medium-level self-reported income ($12K–$46K) weighted Benefits significantly higher than those with medium-level income ($46K–$88K). STEM majors reported higher values for the Qualification fit and Influencing others than non-STEM majors. As South Korea is one of the few countries which has an oversupply of highly qualified teacher candidates, findings were compared with other countries to provide useful insights to improve recruitment of highly qualified individuals to teaching workforce in many countries where teacher shortage is a chronic problem. Based on these data analyses, we argue that policy makers, politicians, education researchers, and others who care about quality education and student academic achievements need to make efforts to increase task returns and benefits.

남녀 고등학생의 교복과 자율복의 대한 태도 연구

김미정,김영숙,배지혜,신영옥,장명희,황인순 효성여자대학교 가정대학 학도호국단 1984 家政大論集 Vol.3 No.-

The purpose of this study was to investigate the attitude difference toward the school uniform, it was supposed that clothing acceptance was differentiated according to subjects. The subjects were grouped by 3 types which were students, teachers(school governors) and parents groups. The results were as follows; 1. Boy students reguired the more freedom of clothing than girls. 2. Teachers and parents groups considered that clothing affected student's behavior and self-esteem. 3. The acceptance of school plain dress was affected by atomosphere of home and school. 4. According to socioeconomic levels, there were differences in clothing acceptance and fashion acceptance.

부부관계향상을 위한 교육프로그램 개발과 효과검증 : 맞벌이 부부를 중심으로 Focused on the Double-income Couple

이정미,김정옥 한국가족관계학회 2006 한국가족관계학회지 Vol.11 No.1

유근피가 고콜레스테롤식이를 급여한 흰쥐의 지질대사에 미치는 영향

이미정,하진옥,이재준,이명렬 朝鮮大學校 附設 醫學硏究所 2009 The Medical Journal of Chosun University Vol.34 No.1

연구배경: 유근피는 기능성식품의 신소재로 개발하기 위해서 체계적인 식품학적 연구 및 생리활성효능의 검증이 요구된다. 본 연구에서는 유근피 에탄올 추출물(UDEE)이 고콜레스테롤식이를 급여한 흰쥐의 지방대사 개선효과에 미치는 영향을 구명하고자 혈청 및 간 중의 지질 조성 변화를 검토하였다. 방법: 5주령의 Sprague Dawley계 웅성 흰쥐에게 1% 콜레스테롤과 0.25% sodium cholate를 함유한 고콜레스테롤식이를 조제하여 6주간 급여하였다. 실험군은 정상식이군(NOR), 고콜레스테롤식이군(대조군, CON), 정상식이와 유근피 에탄올 추출물 저용량 투여군(UD1), 정상식이와 유근피 에탄올 추출물 고용량 투여군(UD2), 고콜레스테롤식이와 유근피 에탄올 추출물 저용량 병합 투여군(UDC1) 및 고콜레스테롤식이와 유근피 에탄올 추출물 고용량 병합 투여군(UDC2)의 6군으로 나누어 실시하였다. 유근피 에탄올 추출물은 매일 같은 시각에 경구 투여한 후 흰쥐의 혈액과 간장 내의 지질 조성을 관찰하였다. 결과: 체중증가율과 간 무게는 CON군이 NOR군에 비하여 높게 나타났으나, 고콜레스테롤식이와 유근피 추출물을 병합 투여한 UDC1군과 UDC2군에서 점차 감소하는 경향을 보였다. 혈청 중 ALT, AST 및 ALP 활성은 CON군에서 유의적으로 증가하였고, UDEE 투여로 농도 의존적으로 감소하였다. UDEE 투여군에서는 CON군에 비하여 HDL-콜레스테롤/총콜레스테롤, HDL-콜레스테롤 및 인지질 함량은 증가하였으나 중성지질, 총콜레스테롤, 유리콜레스테롤 및 LDL-콜레스테롤 함량은 감소하였다. 중성지질, 인지질, LDL-콜레스테롤, HDL-콜레스테롤 및 유리콜레스테롤 함량은 정상식이를 급여한 군들 간에는 유의차가 없었다. 또한, 간 중 중성지질과 총콜레스테롤 함량도 UDEE 투여군이 CON군에 비하여 낮았다. 결론: 유근피 에탄올 추출물은 혈청 및 간의 콜레스테롤 함량을 저하시켜 고콜레스테롤혈증 예방과 치료에 효과적일 것으로 판단되어진다. Background and Objectives: This study was performed to investigate the effect of ethanol extract of Ulmus davidiana var. japonica Nakai(UDEE) on serum and liver lipid metabolism in rats fed high cholesterol diet. Methods and Materials: Male Sprague-Dawley rats were administered 1% cholesterol and 0.25% sodium cholate to induce hypercholesterolemia. We divided into six groups; normal diet group(NOR), high cholesterol diet group(CON), normal diet and UDEE 200 mg/kg administered group(UD1), normal diet and UDEE 400 mg/kg administered group(UD2), high cholesterol diet and UDEE 200 mg/kg administered group(UDC1), and high cholesterol diet and UDEE 400 mg/kg administered group(UDC2). Results: The growth rate and liver weight of the CON group was higher than the NOR, whereas the administered UDEE groups were gradually decreased. There was a significant increase in the activities of serum ALT, AST and ALP in CON group. The administration of UDEE decreased serum ALT, AST and ALP activities in dose dependently manners. UDEE administered groups were increased HDL-C/T-C, HDL-cholesterol and phospholipid levels, and decreased serum triglyceride, total cholesterol, free cholesterol, and LDL-cholesterol levels as compared with CON group. There were no differences in the levels of serum triglyceride, phospholipid, LDL-cholesterol, HDL-cholesterol and free cholesterol between normal diet groups. The hepatic levels of total cholesterol and triglyceride were also lower in UDEE administered groups than in CON group. Conclusion: These results suggest that UDEE exerts hypocholesterolemic effect by reducing serum and liver cholesterol contents.

성전환자와 정상인이 발성한 모음의 음향분석과 지각실험

조성미,정옥란 한국음성과학회 2003 음성과학 Vol.10 No.3

This study compared F0 and the first three formants of eight Korean monophthongs produced by nine transgenters (male to female) to those of eighteen normal adults. Voice analysis was done by Praa (version 4.4049). A one-way ANOVA wih Turkey HSD post hoc tests were performed to determine statistical differences in F0 and forma values obtained from transgender, and normal male and female subjects. Results indicated that there was no significant difference in F1 of /u/, /Λ/, and /o/, F2 of /u/, /Λ/, and /i/ and F3 of /u/ among the 3 groups (transgender, normal males and normal females). However, in the comparison of transgender vs. males, a significant difference was observed in F0 of /o/, and F2 of /i/, /a/, /e/, and /ae/ an F3 of /e/. Furthermore in the comparison of transgender vs. females, a significant difference was also observed in F0 of all vowels, F1 of /i/, /a/, /e/, /ae/, and /i/, F2 of /i/, an /ae/, an F3 of /i/, /a/, /Λ/, /e/, /ae/, /i/, an /o/. Also, perceptual judgment of the transgender' voice came out somewhat correlated strongly with their F0 values but not much with the formant values. It was concluded that he transgender' acoustic parameters are plead in between those of the normal males and females in terms of fundamental and formant frequency analyses of vowels. Thus, it was assumed that those differences might stem from the transgender' original big resonating cavities.

항공사 승무원의 비행 스트레스와 식행동에 관한 연구

양정미,노정옥,우경자 동아시아식생활학회 2004 동아시아식생활학회지 Vol.14 No.2

This study investigated the relationship among the flight stress, disease and eating behavior of the Airline cabin crews. Self administered questionnaires were collected from three hundred and twenty cabin crews. Statistical data analysis was completed using a SPSS v.10.0 program. The results were summarized as follows: Before the flight, the maladaptation to the oversea foods was the most common stress for the crews less than one year flight experience. During the flight, fastidious arrangement and loss of appetite due to overwork were the most common stresses. After the flight, anorexia due to jet lag was the most common stress. Backache and stomachache were the most common job-related ailments of the airline cabin crews. During the flight, the intakes of carbonated drinks and coffee were most common. After the flight, water was the most common drink they consumed.

임상간호사의 사회심리적 건강과 건강지각, 건강관련 행위

김정희,현미열,김영순,김정실,남상옥,송만숙,이라주,이정화 한국간호과학회 간호행정학회 2010 간호행정학회지 Vol.16 No.1

Purpose: The purpose of this study was to investigate the relationships among psycho-social well-being, and health perception and behavior in clinical nurses. Methods: The data were collected from 362 nurses employed at five general hospitals. A self-reported questionnaire was used to assess demographics and job characteristics, health perception and behavior, depression, and psycho-social stress. The data were analysed using Cronbach's alpha, descriptive statistics, t-test, and ANOVA. Results: While nurses perceived themselves to be in good health, represented by a high mean for health perceptions, actual health behavior was poor as the mean for health behavior was low. Forty two percents of the subjects were categorized as having major depression and high-stress levels. There were statistically significant differences in psycho-social well-being according to age, marital status, years of employment, and monthly salary. Also, there were significant differences in psycho-social well-being according to health perception, regular meals and exercise, sufficient sleep, job related injury and accident, and absences for ill. Conclusion: In order to prevent depression and improve psycho-social well-being among clinical nurses, organizational support and health management needs to be focused on high-risk nurses. Furthermore, it is essential to consider the health perception and behavior of clinical nurses.