신경아세포종양 신경초종 1예

남용호,김지연,송계용,윤태진 대한피부과학회 2006 大韓皮膚科學會誌 Vol.44 No.4

국제회의 참가자의 국제회의 기획업에 대한 만족도 조사에 관한 연구

남태석,정연국,최정은 한국관광정책학회 2000 觀光政策學硏究 Vol.6 No.3

Conventions have become extremely important in today's business world. Every fields has its conventions : Professions, trade unionism, education, arts, commerce, politics, and fraternalism all rely on conventions to bring together the membership's cross section of ideas. At past sutudies, there were few detailed studied for the PCO services in Korea even though they have taken several accesses to the international convention in the hardware aspect like facilities as well as in the software aspect. Whereas, for the activation of the international convention industry, this study shows how much the participant are satisfied with the service of the PCO, and then presents the way out of tough conditions of Korean tourism as holding more international convention, which invites quality foreign tourists in large number. Therefore the object of this study shall be of help to the desirable development of international convention industry through the survey of the satisfaction with the PCO service based on the positive investigation and the view of attendant. In a common view of domestic and foreign people, while Korean PCO comes up to the standard in the planning and working out the international convention, it cannot meet the various requirements of attendants in the specialized knowledge interpretation and relationship. Therefore it needs the new establishment of the developend and systmatic departure to bring up the specialized PCO.

호텔 식음료 시설의 중요 요인에 따른 호텔 선택 영향 연구

남태석,정연국 문화관광연구학회 1999 문화관광연구 Vol.1 No.2

MAGFET의 동작 특성에 미치는 형상효과

남태철,이철우,이지연 嶺南大學校 工業技術硏究所 1997 工業技術硏究所論文集 Vol.25 No.1

We have investigated the galvanomagnetic properties of the MAGFET with two splitted drains. The model shows that the sensitivity of the MAGFET is primarily a function of the Hall voltage which is proportional to ratio of the gate, W/L. We have shown the distributions of potential and current density and attained the relative sensitivity of 3.2[%/T]

만성 화농성 중이염의 세균학적 고찰

조남순,이영훈,강기훈,최제환,송태현,이병돈,장혁순,강주원,김연준 순천향의학연구소;Soonchunhyang Medical Research Institute 2000 Journal of Soonchunhyang Medical Science Vol.6 No.1

Background and Objectives : Chronic suppurative otitis media is one of the frequent diseases in otolaryngologic field. It is important to choose of antibiotics in the management of infectious disease. But the organisms in infections have been changed and resistance to antibiotics has been grown as the development of antibiotics has been achieved. And so it has been necessary to recognize the changes of organisms and resistance in antibiotics. Our study was performed to identify the pathogens isolated from discharges in chronic otitis media and evaluate the antibiotic agents, to recognize the change of to resistance to·antibiotic agents and to use the appropriate anitiotics. Materials and Methods : Retrospectively, authors reviewed the backeriologic study of 114 cases of chronic suppurative otitis media who visited the Department of Otolaryngology, Soonchunhyang University in Seoul from Nov. 1996 to Oct. 1999 and analyzed 101 strains and its sensitivity test to various antibiotics. Result : In 93 cases in which pathogenic organism was isolated, single infection was 85 cases(91.4%) and mixed infection was 8 cases(8.6%). The most frequent pathogenic organism was Staphylococcus aureus(59.4%), Pseudomonas aeruginosa(13.9%), Providencia(4.8%), Alcaligenes(3.0%) and Streptococcus pneumoniae(2.9%) were the next. Methicilline-Resistance Staphylococcus aureus was 34 cases(57.6%) of Staphylococcus aureus. Staphylococcus aureus was sensitive to Vancomycin(96.7%), Trimethoprim-Sulfamethoxazole (57.6%), Cefuroxime(42.4%) and Ciprofloxacin(40.7%) but resistant to Penicillin(94.9%). Pseudomonas aeruginosa was sentitive Amikacin(100%), Ciprofloxacin(100%) and Gentamicin(67%). Conclusion : As MRSA recently was wide spread in community accquired infection as well as nosocomial infection, we must consider strict control of MRSA.

호중구 감소성 발열을 보인 고형암 환자의 임상양상 및 그람양성균 균혈증의 위험인자

구남수,김준형,최유경,정세진,오형중,윤기태,김연아,신소연,김명수,김영근,박윤선,최준용,송영구,이경원,김준명 대한감염학회 2006 감염과 화학요법 Vol.38 No.5

목적 : 항암요법을 시행받고 호중구 감소성 발열이 발생한 고형암환자에서 임상양상을 분석하고 그람양성균균혈증의 위험인자를 알아보고자 하였다. 재료 및 방법 : 2002년 1월부터 2004년 12월까지 연세대학교 의과대학 세브란스 병원 종양내과에서 고형암으로 진단받고 항암요법을 시행받은 18세 이상의 암환자에서 호중구 감소성 발열이 있었던 288예를 대상으로 하였다. 결과 : 항암요법을 시행받은 고형암 환자 중 288예에서 호중구 감소성 발열이 발생하였다. 이중 원인을 찾을 수 있었던 경우는 130예로 전체 45.1% 이었으며 미생물학적 확인감염(microbiologically documented infection, MDI)은 53예(18.4%) 이었다. 균혈증이 동반된 호중구 감소성 발열의 원인균 분포를 보면 총 53예에서 그람양성균이 27예 분리되어 50.9%를 차지하였고 그람음성균이 25예(47.2%), 진균 1예(1.9%) 순이었다. 그람양성균 중에서 methicillin 내성 포도상구균의 비율은 35% 이었다. 호중구 감소성 발열 환자에서 그람양성균 균혈증의 독립적인 위험인자를 분석한 결과 중심정맥 카테터와 연관된 감염이 있는 경우, 구내 점막염이 발생한 경우, 그리고 피부 및 연조직 감염이 발생한 경우에서 그람양성균 균혈증의 위험이 높았다. 결론 : 호중구 감소성 발열이 발생한 고형암 환자에서그람양성균 균혈증이 가장 높은 빈도를 보였으며 특히 중심정맥 카테터와 연관된 감염이 있는 경우, 구내 점막염이 발생한 경우, 그리고 피부 및 연조직 감염이 발생한 경우에서 그람양성균 균혈증의 위험이 높음을 알 수 있었다. 따라서 호중구 감소성 발열이 발생한 고형암 환자에서 발열 당시에 위와 같은 위험인자가 있을 경우 glycopeptide의 조기 사용을 고려해야 할 것으로 사료되며 앞으로 더 많은 환자를 대상으로 하는 전향적 연구가 진행되어야 할 것으로 생각된다. Backgrounds : Recently, there has been a rise of prevalence of gram positive infection among cancer patients with febrile neutropenia. The proportion of antibiotic-resistant gram positive infection has been growing lately, especially in Korea, where the rate of MRSA infection was over 70%. It brings to careful consideration of early glycopeptide treatment in febrile neutropenic patients if gram positive infection is suspected. Also until now, most studies concerning febrile neutropenic patients were mainly related to hematologic malignancy rather than solid tumor. Materials and Methods : We evaluated clinical manifestations and risk factors for gram positive bacteremia in a cohort of 288 solid tumor patients who were more than 18 years old and had neutropenic fever after chemotherapy from January 2002 to December 2004 at the Department of Oncology, Yonsei Cancer Center, Seoul. Results : We identified the cause of fever in 130 (45.1%) cases, of which 53 (18.4%) cases were blood stream infection. Gram positive organism was isolated in 27 cases which comprises 50.9% of blood stream infections, followed by gram negative organism (47.2%) and fungus (1.9%). A logistic regression analysis revealed that gram positive bacteremia was associated independently with central venous catheter (CVC) infection, oropharyngeal mucositis, skin and soft tissue infection in febrile neutropenic patients with solid tumor. Conclusions : Gram positive bacteremia was common among febrile neutropenic patients in solid tumor and was associated with CVC infection, oropharyngeal mucositis, skin and soft tissue infection. The early use of glycopeptide must be taken into account in such conditions.

중합효소연쇄반응을 통해 확진되고 Atovaquone과 Azithromycin으로 치료한 Human Babesiosis 1예

윤기태,김연아,구남수,김준형,정세진,김홍정,송경호,최유경,신소연,김영근,김명수,박윤선,최준용,송영구,김준명 대한감염학회 2006 감염과 화학요법 Vol.38 No.5

저자들은 국내에서 처음으로 중합효소연쇄반응 검사를 통하여 B. microti에 의한 인체 바베시오시를 진단하였으며, atovaquone과 azithromycin 병합요법을 사용하여 치유한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Human babesiosis is a tick-borne infectious disease caused by Babesia species. The clinical diagnosis is difficult because of nonspecific symptoms like flu. Rapid diagnosis of human babesiosis is microscopic examination in peripheral blood smear (Giemsa-stain) which reveals characteristic forms of an intracellular quadruplet parasite. But differentiation between Babesia microti and Plasmodium species can be quite difficult because of the morphologic similarity. We experienced a case of human babesiosis. The patient was a 62-year old Korean male who had been in New Jersey, U.S.A for 2 months. We initially diagnosed as malaria infection because the peripheral blood smear revealed intracellular single ring form organism. But the patient was not improved significantly by the treatment with chloroquine regimen. Finally we confirmed human babesiosis by polymerase chain reaction for Babesia microti. We treated the patient successfully with a regimen of atovaquone and azithromycin which has fewer adverse reactions than a regimen of clindamycin and quinine.

목련과 수종과 부위에 따른 견직물의 천연염색변이

박재인,연방희,최태호,이은경,임선희,김홍은,조남석,김태동 忠北大學校 農業科學硏究所 2003 農業科學硏究 Vol.20 No.-

In order to establish a dyeing method with Magnoliaceae tree species dyeing was examined with 4 different parts, leaf, stem bark, root, flower of 4 Magnohaceae species, Magnolia kobus Dc., Magnolia denudata Desr, Magnolia obovata Thunb, Liriodendron tulipifera L Mordants used were chemicals, AIK(SO_4)_2 24H_2O, Ca(OH)_2, FeSO_4 7H_2O. All four species showed similar coloring among four different parts. Leaves and petals showed dark yellow, stem bark, grayish yellow, root bark, dark red or yellow. Al mordant made more brighter colour than Fe mordant. Stem bark showed less difference in color by mordants, whereas petals did the biggest.

정신분열병 환자의 말초 임파구에서 도파민 수용체 mRNA의 변화

곽용태,최철희,김옥준,주연호,김형섭,강성숙,구민성,선우일남 大韓神經精神醫學會 1999 신경정신의학 Vol.38 No.5

연구목적 : 정신분열병은 주로 청소년기에 발병하는 정신과에서 가장 흔한 질환 중의 하나이다. 이 질환의 원인이나 병인은 아직 불확실하지만 뇌 도파민계의 기능장애가 중요한 기전으로 생각되고 있으나 부검없이 뇌 도파민계를 직접 관찰할수 없으므로 많은 혼란이 있어왔다. 이를 극복하기 위하여 최근에 발견된 말초 임파구의 도파민 수용체를 이용하여 정신분열병에 있어서 말초 임파구 도파민 수용체가 뇌 도파민계의 기능을 반영하는 말초표식인자일 가능성이 있는지를 규명한다. 방 법 : 3년 이상 항정신병 약물을 복용중인 정신분열병 환자(약물투약군) 44명, 최근 3개월 이상 항정신병 약물을 복용하지 않은 환자(약물비투약군) 43명, 정상대조군 31명을 대상으로 말초 임파구의 D3, D5 도파민 수용체를 정량적 역전사 중합효소 연쇄반응(quantitative reverse transcritpase polymerase chain reaction)을 이용하여서 정량 비교하였고, 또한 항정신병 약물을 복용하지 않은 환자들에 있어서 약물 투여 후 도파민 수용체의 변화 및 임상양상의 변화를 관찰하였다. 결 과 : 1) 말초혈액 임파구의 D3R/βA는 약물비투약군에서 정상대조군이나 약물투약군에 비하여 통계적으로 유의하게 있게 증가되어 있었다. D5R/βA의 경우 약물비투약군이 약물투약군에서만 비하여 유의하게 증가되었다. 그러나 약물투약군과 정상대조군 간에는 도파민 수용체 mRNA(D3R/βA, D5R/βA)양에 있어서 차이가 없었다. 2) 항정신병 약물을 새로 투여하는 환자에서 항정신병 약물을 투여 후 임파구 도파민 수용체의 변화를 추적 관찰한 결과 증가하는 경향을 보였다. 3) 약물비투약군을 정상 대조군과 비교하여 D3R/βA mRNA가 정상범위에 속하는 군과 높은 군으로 나누어서 임상척도와 비교 분석한 결과 임파구 도파민 수용체가 증가한 군에서 다음과 같은 임상특징을 관찰할 수 있었다. (1) 정신병리증상이(BPRS) 현저하였다. (2) 약물치료에 대해 양성 정신병리증상(pBPRS)의 호전도가 낮았다. (3) 약물치료시 추체외로 부작용이 심하였다. 결 론 : 이상의 연구결과로 말초 임파구에서 발현되는 도파민 수용체는 정신분열병의 소군 분류 및 예후 예측에 있어서 임상적 의의가 있는 것을 알 수 있었다. 따라서 말초임파구에서 발현되는 도파민 수용체는 비록 이에 상응하는 뇌의 해부학적 위치는 알 수 없지만 중추신경계의 도파민 수용체의 기능을 반영할 가능성이 높다고 생각되었다. Objectives : Schizophrenia, commonly developed in adolescence and young adulthood, is one of the most common mental diseases in psychiatry. The etiology or pathogenesis of this disease is uncertain yet, but the dysfunction of dopaminergic system in the brain has been proposed. However, there is no direct evidence of dysfunction of brain dopaminergic systems in schizophrenic patients because the direct assessment of brain dopaminergic systems is almost impossible at present. To overcome this problem, recently founded dopamine receptors and their mRNAs in peripheral lymphocytes was used. The purpose of this study was to define whether the dopamine receptors of peripheral lymphocytes can be the peripheral markers of schizophrenia or not. Methods : The total numbers of subjects are 87 schizophrenic patients. Among them 44 patients were schizophrenics who had been taking antipsychotic drugs for more than 3 years(medicated patients), 43 schizophrenics who recently are not taken antipsychotic drugs for more than 3 months(drug-free patients). For controls age and sex matched 31 healthy persons were enrolled. Sequential reverse transcription and quantitative polymerase chain reaction of the mRNA were used to investigate the expression of dopamine receptors in peripheral lymphocytes. The gene expression of dopamine receptors were compared in each groups and after starting antipsychotic medicines in drug-free patients, the clinical scales and the dopamine receptors of peripheral lymphocytes were sequentially studied before, 2 weeks after and 8 weeks after medication. Results : 1) In drug-free schizophrenics, D3 dopamine receptor mRNA expression of peripheral lymphocytes was significantly increased comparing with that of controls and drug-medicated schizophrenics and D5 dopamine receptor mRNA expression was increased comparing with only that of drug-medicated schizophrenics. There was no difference between controls and drug-medicated schizophrenics. 2) After antipsychotic medication, dopamine receptors of lymphocytes were increased tendency. 3) Drug-free patients were divided into two groups according to dopamine receptor expression in controls to evaluate the significance of increased dopamine receptor expression. The group of patients with increaseddopamine receptor expressio had following clinical characteristics. (1) More severe psychiatric symptoms (2) Poor pharmacological response of pBPRS on medicines (3) Severe extrapyramidal side effects after pharmacological treatment Conculsion : These results revealed that the molecular biologically determined dopamine receptors of peripheral lymphocytes were reactive, and increased expression of dopamine receptor in peripheral lymphocyte had clinical significance for subgrouping and prognostication. These findings suggested that dopamine receptors of peripheral lymphocyte may represent dopamine receptors of the brain, even the location cannot be determined.

곰팡이에서 분리한 Helicobacter pylori 항균물질의 분리 및 구조규명

남궁준,연승우,백남수,김태한,김영호,김창진,김기원 충남대학교 약학대학 의약품개발연구소 1998 藥學論文集 Vol.14 No.-

Helicobacter pylori is a Gram-negative bacterium which causes chronic gastritis and is associated with gastric ulcer, duodenal ulcer and gastric carcinoma. In the process of screening of antibacterial activities against H. pylori from soil microorgani는, fungus No. 60686 was isolated. After fementaion of No. 60686, the antibacterial compound was isolated, purified and followed by extraction of mycelium with orgainic solvents, acetone and ethyl acetate, through silica gel chromatography, LH-20 gel chromatography and HPLC. As a result of the structural analyses of the compound by IR, ^1H- and ^13C-NMR, FAB/Mass spectrophotomer, the compound having the antimicrobial activity was idenfitied as chaetoglobosin A (C_32H_36N_2O_5), a cytochalasan derivative. The antimicrobial activity of chaetoglobosin A was tested against Gram-positive and negative bacteria by paper disk method. Among the test strains of 9 Gram-positive bacteria and 18 Gram-negative bacteria containing 4 H. pylori strains, the growth of 4 H. pylori strains and 3 S. aureus strains (SG 511, 285 and 503) was only inhibited by chaetoglobosin A. Also it was shown that its growth inhibition against H. pylori strains was stronger than that against S. aureus strains at the treatment of the same concentration. Therefore it was concluded that chaetoglobosin A has a specific growth inhibition against H. pylori of the tested bacteria.