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( Hee Jun Cho ),( Byung Moo Oh ),( Jong-tae Kim ),( Jeewon Lim ),( Sang Yoon Park ),( Yo Sep Hwang ),( Kyoung Eun Baek ),( Bo-yeon Kim ),( Inpyo Choi ),( Hee Gu Lee ) 한국미생물 · 생명공학회 2019 Journal of microbiology and biotechnology Vol.29 No.2
Interleukin-21 is a common γ-chain cytokine that controls the immune responses of B cells, T cells, and natural killer cells. Targeting IL-21 to strengthen the immune system is promising for the development of vaccines as well as anti-infection and anti-tumor therapies. However, the practical application of IL-21 is limited by the high production cost. In this study, we improved IL-21 production by codon optimization and selection of appropriate signal peptide in CHO-K1 cells. Codon-optimized or non-optimized human IL-21 was stably transfected into CHO-K1 cells. IL-21 expression was 10-fold higher for codon-optimized than non-optimized IL-21. We fused five different signal peptides to codon-optimized mature IL-21 and evaluated their effect on IL-21 production. The best result (a 3-fold increase) was obtained using a signal peptide derived from human azurocidin. Furthermore, codon-optimized IL-21 containing the azurocidin signal peptide promoted IFN-γ secretion and STAT3 phosphorylation in NK-92 cells similar to codon-optimized IL-21 containing original signal peptide. Collectively, these results indicate that codon optimization and azurocidin signal peptides provide an efficient approach for the high-level production of IL-21 as a biopharmaceutical.
서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)
김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2
Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.
서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.
돼지생식기호흡기 증후군(PRRS) 바이러스 감염시킨 돼지 기관의 병리학적 관찰
조성환,김현수,윤원기,전무형,류시윤,박배근,손화영,김무강 충남대학교 수의과대학 동물의과학연구소 1996 動物醫科學硏究誌 Vol.4 No.-
The porcine reproductive and respiratory syndrome virus was inoculated into swine tracheal organ culture. The ballooning degeneration of the tracheal ciliated epithelium and a decrease of ciliary activity from the tracheal organs infected with PRRS virus were observed one day post-infection(PI). Tracheal epithelium showed degeneration and focal necrosis 2 days PI. Epithelial necrosis and loss of cilia and epithelial cells became more severe 3 and 4 days PI. An entire loss of cilia and epithelial cells were recognized 4 days PI, however, control tracheal organs were normal during the period of the experiment except a little decrease of ciliary activities with time..
조윤호,한상기,김준형 중앙대학교 기술과학연구소 1999 기술과학연구소 논문집 Vol.29 No.-
외국의 설계 지침을 근간으로 콘크리트 포장을 설계하고 있는 국내 포장 기술자들은 흙의 지지력 계수 추정에 어려움을 겪고 있다. 길바탕흙(Roadbed Soil)의 평판재하실험 결과(??)를 선택층 및 하나 혹은 여러 층위의 지지력계수(??)로 변환하는 것은 현 설계 지침에 상세한 과정이 없으므로 혼란이 가중되고 있다. 이에 대하여 본 논문은 흙의 지지력계수 산정과정 전반에 걸쳐 국내의 문제점을 살펴보고, 바람직한 설계 방향을 제시하였다. 국내에 존재하는 포장의 형식을 조사하여 대표적인 보조기층재료와 두께 따라 ??값에서 ??값을 추정하는 설계 입력변수 변환 모형을 제시하였는데, 포장 거동 해석 모형은 AASHTO 추정식에 사용했던 다탄성 해석이론인 ELSYM5가 사용되었다. 역학적 모형 해석에 어려움을 겪는 기술자들이 간편하게 사용할 모형을 개발였는데 기층 및 보조 기층의 두께 및 재료 물성에 따라 총 990회의 거동 해석이 진행되었고, 회귀 분석을 이용하여 추정모형을 선정하였다. 또한 제시된 회귀식은 기존의 개발 모형과 비교를 통해 실무 적용이 타당하다고 판단하였다. Design of concrete pavement in Korea is mainly based on the guide developed from the AASHTO. However, many input parameters were not calibrated for the materials used in the highway. Subgrade modulus for the rigid pavement could not be correctly estimated due to lack of procedure to transfer modulus of subgrade reaction(??) to composite modulus of subgrade reaction(??), for example. This paper describes the way how to develop transforming equation and the model for estimating ??. Typical concrete sections were selected from the survey of pavement constructed in airport and highway. A layered elastic model, ELSYM5, that shows the behavior of concrete pavement under traffic loading was adapted for calculation of theoretical subgrade modules. Total 990 of calculation were performed. Regression model was suggested for the design based purely on analytical work so that further research work to verify the model from the field should be carried out.
한국 주요정신장애의 유병률 및 관련요인 : 2006 전국정신질환역학조사
조맹제,장성만,함봉진,정인원,배안,이영문,안준호,원승희,손정우,홍진표,배재남,이동우,조성진,박종익,이준영,김진영,전홍진,이해우 大韓神經精神醫學會 2009 신경정신의학 Vol.48 No.3
Objectives The aims of this study are to estimate the prevalence of the DSM-IV psychiatric disorders in the Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI), and to compare those with previous studies. Methods The Korean Epidemiologic Catchment Area study Replication (KECA-R) was Conducted between August 2006 and April 2007. The sampling of the subjects was carried out across 12 catchment areas. A multistage, cluster sampling design was adopted. The target Population included all eligible residents aged 181o 64 years. Face-to-face interviews were conducted with the Korean version of Composite International Diagnostic Interview (K-CIDI) based on the DSM-IV (N=6,510, response rate=81.7%). Results A total of 6,510 participants completed the interview. The lifetime and 12-month prevalence rates for all types of DSM-IV disorders were 30.0% and 17.3%, respectively. Those of Specific disorders were as follows : 1) alcohol use disorder, 16.2% and 5.6% ; 2) nicotine use disorder, 9.0% and 6.0% ; 3) specific phobia, 3.8% and 3.4% ; 4) major depressive disorder, 5.6% and 2.5% ; and 5) generalized anxiety disorder, 1.6% and 0.8%. Data relating to nicotine and alcohol use disorder revealed a very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among females than males. Conclusion The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in the distribution of psychiatric disorders across the country and times were observed.
한국과 일본의 영어 교육 비교 연구 : A Historical Survey 한국과 일본의 영어 교육의 역사적 배경을 중심으로
조용남,이상준 韓國外國語大學校附設 外國語敎育硏究所 1991 외국어교육연구 Vol.- No.7
ABTRACTThe present study surveys the historical background of English teaching in japan, which Korea inherited and has made its own tradition.The Japanese history of English teaching has had two periods during which English was popularly learned with the kind of enthusiasm that has not been seen in other times. One was the Meiji period When all subjects on the curriculum of the middle school and upwards were taught in English by Western teachers with books written in English, and the other the period of American occupation beginning with the end of the war, when the ability of spoken English was almost an essential condition for advancing one's career.In other times, the status of English was recognized only as one of the most important subjects of the examination for entrance into the university. This was a situation for which the grammar-translation method of teaching was the most effective, making it difficult for any communication-oriented method to be adopted in schools of formal educationThe national controversies, characteristic if English teaching in Japan, over whether English should be included in the curriculum of the middle school are traced partly to public dissatisfaction with the low level of English proficiency of high school and university graduates vis-a-vis the time spent on learning the foreign language,partly to nationalism of the Japanese people, and partly on the ideology of English education.English was introduced to Korea along routes different from the way it came to Japan. and had been taught to a small number of people by a communication-centered method until 1919, when Japan replaced with its own the traditional Korean educational system including English teaching. It can be said that English teaching in Korea actually started with the imposition of the Japanese educational system in Korea, and has thus inherited the Japanese tradition of English teaching. It is this historical background that makes the history and tradition of English teaching of Japan meaningful to us.It is revealed by this survey that progress in the teaching of foreign