Fluoxetine이 Schedule-Induced Polydipsia가 유발된 백서 뇌에서 Tyrosine Hydroxylase 발현에 미치는 영향

이기철,이정호,최영민,정주호,정홍경,이용민,김도형,이대환 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.2

연구목적: Fluoxetine은 serotonin을 매개하여 간접적으로 dopamine 신경전달기능을 억제한다고 추정되고 있다. 또한 운동장애에서 운동기능의 악화를 유발한다고 알려져 있다. 그러나 신경세포체에서 fluoxetine이 dopamine에 어떠한 영향을 주는지는 아직까지 확실치 않다. 저자들은 schedule-induced polydipsia를 유발시킨 백서 뇌의 흑질, 복부피개영역, 미상핵에서 tyrosine hydroxylase(TH) 발현이 저하됨을 발견하였다. 이를 통해서 fluoxetine이 백서 뇌의 dopamine 기능에 긍정적인지 혹은 부정적인지를 규명하고자 하였다. 방법: 4주간의 schedule-induced polydipsia 과정을 거친 백서에서 면역죄치화학적인 방법으로 흑질, 복부피개영역, 미상핵의 tyrosine hydroxylase 발현이 저하됨을 확인한 후, 실험동물들에게 fluoxetine 10mg/kg를 3주간 복강내 주사하였다. 실험백서들을 희생시켜 뇌 조직을 적출하여, TH 면역조직화학 염색법을 이용하여 흑질, 복부피개영역, 그리고 미상핵의 TH 면역반응세포를 관찰하고 이를 정상백서와 비교하였다. 결과: 1) 다갈증이 유발된 백서의 흑질, 복부피개영역, 미상핵에서 tyrosine hydroxylase 발현이 정상백서 보다 저하됨을 관찰하였다. 2) 3주간에 걸친 fluoxetine 투여후 흑질, 복부피개영역, 미상핵의 tyrosin hydroxylase 발현이 다시 증가하는 소견을 보였다. 결론: Fluoxetine 만성투여가 흑질, 복부피개영역 그리고 미상핵의 tyrosin hydroxylase를 증가시키는 소견을 얻었다. 이러한 결과는 임상에서 dopamine 결핍과 연관된 질환들에서 fluoxetine을 만성투여하면 운동기능을 포함한 증상들의 개선을 가져올 수도 있다고 추정된다. Objective: It has been suggested that fluoxetine inhibits the dopaminergic neurotransmission by serotonergic mediation. And also, it has been shown to inhibit synthesis of DOPA in dopamine-rich areas of the rat forebrain. These dopamine-antagonistic capacity of fluoxetine is only supported by anecdotal report that the increased amount of motor disability in patients with idiopathic Parkinson's disease after exposure to fluoxetine. However, there is still no evidence of the direct effect of fluoxetine on dopaminergic neuronal cell body in the substantia nigra, VTA, caudate & putamen. This study was designed to evaluate the effects of fluoxetine in rat brain which showed decreased numbers of dopaminergic neuronal cell body induced by schedule-induced polydipsia(SIP). Method: We incidentally found that 4 weeks of schedule-induced polydipsic rats revealed the suppression of tyrosine hydroxylase expression in the substantia nigra, VTA, caudate & putamen with the immunohistochemistric measures. After 3 weeks of intraperitoneal injection of 10mg/kg of fluoxetine to the schedule induced polydipsic rats, the tyrosine hydroxylase expression was also measured with immunohistochemistry. We compared the tyrosine hydroxylase expression among the normal control, the polydipsic rats, and the rats with fluoxetine treatment. Results: 1) By contrast with the control, the polydipsic rats revealed the evidence of decreased tyrosine hydroxylase expression in the substantia nigra, VTA, caudate & putamen. 2)After daily injection of fluoxetine for 3 weeks, the polydipsic rats showed increment of tyrosine hydroxyase expression in those areas. Conclusions: In previous studies, a great deal of results suggest that fluoxetine negatively influence the dopaminergic systems indirectly via serotonergic activation such as inhibition of dopamine synthesis or transport system. Although our results are obtained from rodents, we suggest that fluoxetine directly and positively enhance the dopamine system in the substantia nigra, VTA, caudate & putamen. The chronic adminstration of fluoxetine may be helpful to dopamine-depleted condition in clinical situations. We anticipate the replication studies of our findings and well-controlled clinical trial.

Hong Dae-yong’s Beijing Travels and His Changing Perception of the West-Focusing on Eulbyeong yeonhaengnok and Uisan mundap

Lee Hyung-dae The Academy of Korean Studies 2006 THE REVIEW OF KOREAN STUDIES Vol.9 No.4

Discordance in Spirometric Interpretations Based on Korean and Non-Korean Reference Equations

Nami Kim,Mi-Hee Park,Se-yeong Kim,Chunhui Suh,Sangyoon Lee,Kun-Hyung Kim,Chae-Kwan Lee,Dae-Hwan Kim,Jong-Tae Lee 대한직업환경의학회 2013 대한직업환경의학회지 Vol.25 No.-

Objectives: Korean regression models for spirometric reference values are different from those of other ethnic groups. The purpose of this study was to evaluate discordance in spirometric interpretations based on using Korean reference equations versus non-Korean reference equations. Methods: Spirometry was performed on 825 Korean male workers from April 2009 to November 2011. The spirometric patterns and disease severity were evaluated using two Korean equations (Choi’s and Lee’s) and three equations for Caucasians (NHANES III, Morris’s, and Knudson’s), and the results of Choi’s equation were compared with the non-Korean equations. The spirometric patterns were defined as normal, restrictive, and mild and moderate obstructive. Results: The mean differences in the FEV1% and FVC% between the two Korean equations were 2.0 ± 1.3% and 3.5 ± 2.2%, respectively. Morris’s equation had the greatest difference in the FEV1% from Choi’s equation: 32.9 ± 8.5%. Knudson’s equation had the greatest difference in the FVC% from Choi’s equation: 10.5 ± 6.5%. Conclusions: The two Korean equations shared similar characteristics of spirometric interpretation. The spirometric interpretations of Choi’s equation were significantly different from those of Morris’s equation and Knudson’s equation.

부산지역 모 공단 및 인근지역 사업체의 산업보건 실태에 관한 조사연구

이동영,손혜숙,이채언,박형종,김대환,엄상화,최성용,유병철 인제대학교 1993 仁濟醫學 Vol.14 No.4

부산지역 공단 및 인근지역 사업체의 산업보건실태를 파악하기 위하여 205개 사업체의 보건담당자를 대상으로 1990년도의 보건실태에 관한 설문조사를 하였다. 조사내용을 일반사항, 보건관리실태에 관한 사항, 작업장 유해환경 및 보호구 지급사항, 건강관련 사항 및 근무조건에 관한 사항 등으로 대별하여 분석ㆍ관찰하였다. In order to obtain the fundamental data for developing more effective and acceptable programs of public health manegement in an industrial complex, 205 health manager in the plants answered the questionaire of the status of industrial health during 1990. The questionaire consisted of general charateristics, health care status, environmental problems, health problems, and others. 72.4% of 205 plants had less than 100 workers. Fabricated metal manufacture was 32.4%. Although Footwear manufacture was 6.4%, the percentage of workers was 33.1% of total workers. The percentage(56.2) of retired women was higher than that(38.2) of men. 51.9% of total plants has recieving group health care services. 85.4% of plants was exposed to noise, 66.5% was exposed to dust. Ear plug and mask were given to prevent noise and dust in 69.2% and 68.6%, respectively. Among 22,299 workers, 618(2.8%) were diagnosed as suspected non-occupatinal disease. 85.9% of them worked on continuously and had their disease treated. The cases suspected for occupational disease was 100 workers. 82.5% of them changed their post. 45% had the compensation for their occuaptional disease. The rate of working: accidents was 2.3%.

단일항 여기 산소에 의한 광용혈에 미치는 D-mannitol, ascorbic acid, aspirin 및 sodium azide의 영향

이대형 春川敎育大學 1991 論文集 Vol.31 No.-

The effects of the D-mannitol, ascorbic acid, aspirin and sodium azide against the singlet oxygen induced photohemolysis were investigated. D-Mannitol and ascorbic acid were particulary effective in blocking the photohemolysis, when they were added to the RBC solution before and after irradiation. And sodium azide was effective only when it was added before irradiation. These results indicated that RBC was damaged mainly by singlet oxygen during irradiation, but other active oxygen species such as hydroxy radicals were found out to participate in lysis during post-incubation period. And the aspirin, which was known as inhibitor of cyclooxygenase, was also showed the protective effect only when it was added with relatively high concentration. Accordingly, it seems that the prostaglandin pathway is related with the singlet oxygen induced photohemolysis.

산딸나무 열매로부터 저밀도 지질 단백질(LDL) 산화 역제물질의 분리

이대영,송명종,김민정,정낙훈,정태숙,이윤형,백남인 경희대학교식량자원개발연구소 2007 硏究論文集 Vol.26 No.1

산딸나무 열매를 100% MeOH로 추출하고, 얻어진 추출물을 EtOAc, n-BuOH 및 물로 용매 분획 하였다. 이 중 EtOAc 분획으로부터 silica gel과 octadecyl silica gel(ODS) column chromatography를 반복하여 1종의 lignan 화합물을 분리, 정제하였다. 화합물의 화학구조는 NMR, Ms 및 IR 등의 스펙트럼 데이터를 해석하여, (+)-pinoresinol (1) 로 동정하였다. 이 화합물은 산딸나무에서 처음 분리되었다. LDL-항산화활성 억제활성이 20㎍/mL 처리농도에서 85.1±1.3%로 나타났다. (+)-Pinoresinol was isolated from the EtOAc fraction of methanol extracts of the fruits of Cornus kousa Burg. The chemical structures of (+)-pinoresinol was determined by spectroscopy method, as well as 1D- and 2D-NMR (^(1)H-^(1)H COSY, HSQC and HMBC) spectroscopy. This compound was the first to be isolated from C. kousa Burg. Also, (+)-pinoresinol inhibited LDL-oxidation with the inhibitory activity of 85.1±1.3% at a concentration of 20 ㎍/mL.

마이크로 컴퓨터를 이용한 과학교육 실험 학습방안에 관한 연구(1) : 정량적 연속변화법을 이용한 화학 양론의 학습

이대형,신순임 春川敎育大學 1990 論文集 Vol.30 No.-

신경외과 중환자실에서 치료받은 환자들의 합병증 및 사망율에 대한 임상적 분석 : A Prospective Study of 200 Consecutive Patients

이성운,박상근,김태홍,권점대,신형식,김상진 인제대학교 1997 仁濟醫學 Vol.18 No.2

저자들은 본원 신경외과 중환자 관리의 개선을 위하여 1993년 2월부터 12월까지 중환자실에 입원하여 치료받은 환자 200명을 대상으로 합병증 및 사망율을 일정한 분석양식에 의하여 후향성 연구를 시행하였다. 전체 합병증 발생률은 16.5% 였으며, 환자의 의식 상태가 나쁘고 재원 기간이 길수록 빈도가 증가하였다. 합병증중에서 감염이 66.8%로 합병증 중 가장 많은 빈도를 보였으며, 감염 부위별로는 요도 감염(18.8%), 상처 감염(18.8%) 그리고 폐렴(16.9%) 순으로 많았다. 그외 합병증은 욕창(9.4%), 위장관 질환(7.5%), 피부 질환(7.5%) 순이었다. 사망자는 18명으로 전체 환자의 9%를 차지하였으며 그중 외상 환자가 11명(61%)으로 가장 많았다. 사망 원인은 패혈성 쇼크로 사망한 1명을 제외하고 나머지 모두는 두개강 내압 항진으로 중환자실에서 치료상 합병증에 의하여 사망한 것은 아니었다. 따라서 본 연구 결과 적합한 약물 요법, 적절한 인원 배치, 시설의 개선 및 종사자들에 대한 적극적인 교육 등을 통하여 중환자실에서의 환자 관리를 개선함으로써 합병증 및 사망율을 감소시킬 수 있을 것으로 사료된다. In order to improve the management outcome of patients in neurosurgical intensive care unit(NICU), the authors analyzed complications and mortality of 200 consecutive patients between February and December 1993. Complications were occurred in 33 patients (16.5%) among 200 patients who had been treated at NICU. Infection(66.8%) was the most common complication in our complication series and their detailed sites were urinary tract infection(18.8%), wound infection (18.8%) and pneumonia (16.9%). The motality rate was 9%. Increased intracranial pressure was the most common cause of death. Based on this study, the authors conclude that appropriate medical treatment, proper management and education for personnel and excellent equipments were key to prevention of complication and mortality.

미국의 지적 전통과 위기

이형대 한국외국어대학교 북미연구소 2000 영미연구 Vol.6 No.-

The purpose of this article is to sketch the nature of the American intellectual tradition, to examine how it has been established, and to understand its crisis stemming from the challenge of Postmodernism.Mainstream American intellectuals always have started with the importance of the individual, the firm recognition of rwality, and the clear understanding of historical continuity cinnecting past, present, and future.As the most important element of the mainstream American intellectual tradition, such an attitude has been the dynamic, driving force in the development of the American national state and American democracy. But Postmodernism denies reality and individual and historical continuity.Disputing all underlying assumptions of the American intellectual tradition, extreme postmodern thinkers deny the social morals of America, objective knowledge about America, and even the very being of the American people.The present American society as well as American tradition are in crisis.But I believe that the crisis can and should be overcome by preserving methods and values from the American intellectual tradition.Mainstream American intellectuals have met the challenges of history in every era, but they have overcome them by adhering to traditional values and ways which have been developed on American soil, just as a seed overcomes the challenges of nature through the fertility of that which surrounds it.

體育 特技者의 進路 傾向과 育成策에 관한 硏究

李勇仁,李大珩 忠南大學校體育科學硏究所 1993 體育科學硏究誌 Vol.11 No.1

In the research of course the dency and upbring program of athletic talents, I selected 146 Persons (17% of all) who were attending as a representitives of Chung-Nam and won the prize in individual event (Running, Swimming, Gymnastics) from the lst National Under Age Sports Contst of 10th. But actually 101 plaers were examined and the result is as follows. First of all, I search, examined and analyzed the course of talents. The result 1. They were-especially Swimming and Gymnastic players-excellent in aptitude and female was superior to male. 2. They favorably could promote themselves to high school but half of then entered university and continued their jobs. 3. In employment section, a teacher is only secure and the rate of teacher employment was about 30%. 4. Almost half of them won the prize more than tow times Swimming and Gymnastic players were superior to others. 5. Most of then were below the middle in intelligence and academic career. In the next, comparing the result to research about up buinging progran of Democracy with that of Communism. I will summarize the way of atheletics development and up bring and up program of Athetic talents in runer as follows. 1. In Democraxy put the purpise of athletic development and Upbringing program at private growth and development, but Communism aims for establishment of Socialism. labor and Self-defence political purpose. In Korea pursue both ofsides and put the weight on national prestige through athletics. 2. In the way of unearthing athletes, Communism dose that in infancy and trains them professionally at the special athlricschool and manuge scientifically. On the other hand Democracy trys to unearth them as early time but on their own opinions they choice special training conrse. They enroll normal school and train arferschool. In Korea try to find players throagh Under Age Sports Contest and we have middle, high athletic system. 3. In Democracy performs every kinds of sports contest at the view point of developing National athletic Policy, but Communism apply the norm of athletics to all people and Social athletics are favored. In Korea performs the norm of athletics to students in school and the standard is so low that assertion of extinction is comming grown. 4. In school education, Demcoracy performs for the purpose of education for the whole man. But communism makes it arule to play two more hours a week except normal athletic class. It is madatory In Korea athletic class is looked down on and students put the weight on entrance subject for university. The perception on athletics of people is not good and that brings weakness of urban student. 5. Privilege given to those who won the prize in international Contest in notable in Communism In Korea, they have privilage in annuity, compensation military service exemption, scholarship.