Captopril과 Nifedipine 병합요법의 강압효과에 관한 임상적 연구

이영수,문언수,김준호,공수정,정시진,주용진,정상만 건국대학교 의과학연구소 1993 건국의과학학술지 Vol.3 No.-

Background: The hypotensive effect of captopril(angiotensin converting enzyme inhibitor) and nifedipine(calcium channel blocker) was studied. Method: Captopril(75mg) and nifedipine(30mg) were administered in 30 hypertensive adults during twelve weeks after a week observation for washout with stepwise increments of the dose according to the patient's blood pressure in every two weeks. Result: The supine blood pressure were decreased from 169.5±22.3/104.0±20.3 mmHg to 130.4±21.3/82.4±19.5mmHg at the end of twelve weeks during therapy.(p<0.05) The standing blood pressure were also decreased conferrably and to the some lower level. Hematologic examination and blood chemistry revealed no discernible abnormal findings before and after the treatment. During the period of the study a few probably drug-related symptom such as cough and headache, gastrointestinal disturbance developed but not troublesome enough to administering. Conclusion: Captopril and nifedipine regimen is well tolerated and effective in the treatment of hypertensive patients.

Q 열에 의한 감염성 심내막염 2예

문수연,최영실,박미연,이정아,정미경,정혜숙,정두련,송재훈,백경란 대한감염학회 2009 감염과 화학요법 Vol.41 No.3

Q fever is a zoonosis caused by Coxiella burnetii, Presenting as acute and chronic illness and it has been reported worldwide. Acute Q fever is usually asymptomatic or mild and self-limiting, but infective endocarditis is one of the most serious complications of chronic Q fever and can be fatal. Known risk factors for Q fever endocarditis are valvular heart disease, immunocompromised hosts, and pregnancy. There have been some reports on Q fever in Korea but there exists no report on Q fever endocarditis. We have experienced 2 cases of Q fever with underlying valvular heart disease; both Patients came to the hospital for evaluation of prolonged fever. Although Q fever and Q fever endocarditis are rare in Korea, Q fever endocarditis should be considered in the differential diagnosis of patient with infective endocarditis when causative microorganism cannot be identified.

극좌표계를 이용한 구륜이동로보트의 기구학 모델 변환과 기준모델 적응제어에 기초한 경로추적 제어기 설계

문종우,김종수,박세승 조선대학교 전자정보통신연구소 2002 電子情報通信硏究所論文誌 Vol.5 No.2

This paper presents the kinematic model and the design of a model-reference adaptive controller for wheeled-mobile robots(WMRs) with 2 d.o.f. We derive the forward kinematics and the inverse kinematics to calculate the wheel-velocity and body-velocity. The controlled variables are represented in the polar coordinate so that the number of the controlled variable can be reduced to the same number as the control input. A controller is proposed for path tracking, and then controller parameters are modified by adaptation law based on model-reference adaptive control(MRAC) each step. The designed adaptive controller is analyzed, and its stability and convergence are proved. Simulation is conducted to evaluate the control system and the results are shown.

전합형 인버터에 의한 유도전동기의 속응제어

정은성,조문택,임영배,서영수 明知大學校 産業技術硏究所 1995 産業技術硏究所論文集 Vol.14 No.-

In this paper, the quick response control of induction motor was researched by presenting indirect vector control algorithm to improve the dynamic performance of induction motor, resulting in quick response characteristics such as DC motor. Speed detecting method was used by M/T method and made the simple speed calculation by the presentation of the a1gorithm using the the HSI.0 pin and HSI TIME of 80196KC. It was used each ,PI controller for current controller and speed controller of-control algorithm, 80196KC to CPU for fast velocity processing computation in designing control system, and the way of PWM for removing the current harmonics of voltage source inverter We would like to confirm through experiment the relatively fast response velocity and the superior quick response control characteristics with variable command-speed, applying proposed system to 1[HP] 3ø induction motor.

돌와(Gynostemma pentaphyllum)엑기스가 白鼠의 肝臟障碍에 미치는 影響

丁明鉉,文永熙,姜壽鐵,李炳柱 조선대학교 약학연구소 1989 藥學硏究誌 Vol.11 No.1

This study was attempted to invesigate the effects of extract and crude saponins of Gynostemma pentaphyllum Makino on the activities of S-GPT, S-GOT, Al.P, LDH and the levels of total-bilirubin, total-cholesterol in the serum of nomal rats and experimentally CCl_4-intoxicated rats, and on the effect of body, liver and spleen weight in CCl_4-intoxicated rats. The results were shown as follows; The extract (GE.) and crude saponins were showed a significantly decrease in the activities of S-GPT, S-GOT, Al.P and the level of total bilirubin in the serum elevated by CCl_4, but crude saponins was more decreased than GE. The activities of LDH were significantly decreased of the 4th and the 6th days after administration of GE., and crude saponins was decreased in proportion to the number of days. The level of total cholesterol were significantly decreased in all sample groups. when compared with control group, but remarkably decreased in GE. 500㎎/㎏ and crude saponins 100㎎/㎏. The liver and spleen weight were decreased on the administration of GE. and crude saponins. According to the above results, it is thought that GE. and crude saponins exhibited significant antihepatotoxic activity in the CCl_4-intoxicated rats.

151종 생약제 추출물이 B형 간염 바이러스 표면 항원(HBsAg)과 항체(HBsAb)의 결합반응 그리고 HBV DNA polymerase 활성에 미치는 효과 : 한국산 각종 생약제를 이용한 B형 간염치료제의 개발

정태호,김정철,김문규,이인선,채성철,김승래,정준모,이인수,김승호,함경수 慶北大學校 醫科大學 1992 慶北醫大誌 Vol.33 No.3

세계인구 43억명 중 B형 간염 바이러스 보균자는 2억 1천 5백만명이며 이중 78%인 1억 6천만명 이상이 아시아 대륙에 집중되어 있다. 한국도 B형 바이러스 간염의 침윤지대이다. 본 연구는 B형 바이러스 보균자 혹은 만성간염을 치료할 수 있는 생약제를 탐색할 목적의 일환으로 한국에서 시판하는 생약제 151종을 구입하여 증류수로 추출하고 여과한 후 냉동건조하여 HBs 항원에 대한 결합능, HBV DNA polymerase억제능, tumor necrosis factor(TNF) 유리에 미치는 영향, 그리고 galactosamine 유발 간염에 대한간장보호 작용을 조사하였다. 151종의 생약제중 0.16㎍/㎖ 농도에서 간염 vaccine 내에 함유된 HBs 항원과 결합하는 생약제는 지유, 가자, 복분자, 대황, 정향, 빈량, 산수유, 소목, 마황, 쇄양, 후박, 목과, 양강, 오약, 산사, 목단피 등 16종이었다. 이들 생약제중 대황(Rheum palmatum L. 大黃), 가자(Terminalia chebula R. 訶子), 지유(Sanguisorba officinalis L. 地楡), 복분자(Rubus coreanus M. 覆盆子)는 HBV DNA polymerase 활성도를 비교적 강하게 억제하였으며 빈량(Areca catechu L. 빈랑), 정향(Eugenia caryophyllata T. 丁香), 목과(Chaenomeles japonica L. 木瓜), 산수유(Cornus officinalis S. 山茱萸)는 약하게나마 HBV DNA polymerase 활성을 억제하였다. 또한 HBV DNA polymerase를 억제한 대황, 가자, 지유, 복분자, 빈량, 정향, 마황, 소목, 산수유를 대상으로 TNF 유리에 미치는 영향을 조사한 결과 소목을 제외한 8종의 생약제 모두가 대식세포를 자극하여 TNF를 유리시켰다. 그리고 장차 임상에 사용함을 전제로 HBV DNA polymerase를 억제한 대황, 가자, 지유, 복분자, 빈량, 정향, 마황, 소목, 산수유를 galactosamine 유발 간염(백서)에 투여하여 간기능 검사에 미치는 효과를 조사하였으나 간기능 검사상으로는 특별한 보호작용을 나타내지 못하였으며 생약제 단독 투여로서는 간기능에 대하여 나쁜 영향을 주지 않았다. Hepatitis B virus infection is major cause of acute and chrome hepatitis, cirrhosis of liver, and hepatocellular carcinoma. There are over 200 million carriers of hepatitis B virus in the world, nearly 80 % of whom live in the South East Asia, Korea is also highly endemic area of hepatitis B virus infection. This study was performed to evaluate the effect of extracts of traditional Korean herbal medicines on hepatitis B virus. 151 traditional herbs were extracted, filtered and lyophilized. Using 151 herbal extracts we tested binding capability to the HBs Ag, inhibition of HBV DNA polymerase, release of tumor necrosis factor (TNF), and protection against galactosamine induced liver damage. Among 151 herbs, 16 herbs (Sanguisorba officinalis L., Terminalia chebula R., rubus coreanus M., Rheum palmatum L., Eugenia caryophyllata T., Areca catechu L., Cornus officinalis S., Caesalpinia sappan L, Ephedra sinica S., Cynomorium songaricum R., Machilus thunbergii S., Chaenomeles japonica L., Alpinia officinarum H., Lindera strychnifolia V., Crataegus pinnatifida B., Paeonia suffruticasa A. ) had binding capability to HBs Ag which contained in the commercial hepatitis vaccine, at 16 ug/㎖ of concentratioa Among the above 16 herbs, Rheum palmatum L., Terminalia chebula R., Sanguisorba officinalis L., Rubus coreanus M. significantly inhibited the HBV DNA polymerase activity, and Areca catechu L., Eugenia caryophyllata T., Ephedra sinica S., Caesalpinia sappan L., Chaenomeles Japonica L., Cornus officinalis S. also inibited the HBV DNA polymerase activity but less effective. All of the herbs, except Caesalpinia sappan L., which inhibited the HBV DNA polymerase activity, actively stimulated the mononuclear cells to release tumor necrosis factor(TNF) in whole blood culture system. The herbs which inhibited the HBV DNA polymerase activity, did not show any protective effect in galactosamine-induced hepatitis in rats, but there was no direct toxic effect when herbs were administered alone.

1차 의료기관에서 코감기에 처방한 향균제

정형준,이훈재,김은실,이진수,정문현 대한감염학회 2007 감염과 화학요법 Vol.39 No.3

Background : Upper respiratory infections (URIs) are common benign illnesses that are associated with significant economic burden, adverse effects of medications, and antimicrobial resistance. These effects have been evaluated chiefly at the tertiary health care centers. The purpose of this study was to investigate the prescribing habits, including antibiotic use, for the management of URIs among the primary care physicians. Methods : Between July and August 2006, 23 medical students visited 122 clinics of primary care physicians for the management of simulated common cold. They were instructed to present symptoms that simulated common cold; clear rhinorrhea and nasal stuffiness that lasted for 3 days, and neither was accompanied with fever nor myalgia. Results : The physicians' specialties were as follows: 43 were general internists; 40, otolaryngologists; 23, general practitioners; 15, family practitioners; and 1, pediatrician. The mean number of prescribed oral medications was 4.71 (S.D.±0.951). Glucocorticoids were prescribed in 10 (8.2%) clinics. Antibiotics were prescribed in 50 (41.0%) clinics - cephalosporins in 17, amoxicillin-clavulanate in 16, amoxicillin in 8, fluoroquinolones in 5, macrolides in 3, and trimethoprim-sulfamethoxazole in 1 clinic. There was no difference in the rates of antibiotic prescription among the specialties. Injections were recommended in 32 (26.4%) clinics. With the exception of chest X-ray recommended in 1 clinic, no laboratory or radiologic evaluation was performed. Conclusion : The antibiotic prescription rate observed in this study is lower than those of the previous studies. Since diagnostic tests are seldom performed, diagnostic ambiguity might be a key cause for the overuse of antibiotics in the management of URI. The reasons for the high rates of prescription of parenteral medications need to be evaluated. 목적 : 상기도 감염은 매우 흔한 질환으로 개개인으로 보면 중요하지 않은 병이나 국가 전체로 보면 비용, 부작용, 항균제 내성에 미치는 영향이 더 문제가 되는 병이다. 이런 영향에 대한 연구가 주로 3차 병원에서만 되므로, 3차 병원에 도착하기 전까지 받은 치료 내역이 연구 결과에 큰 영향을 미칠 수 있지만, 국내에서는 의약분업 후로는 의원에서 감기 처방에 대한 조사가 없어 현재 진료 상황을 알 수가 없다. 이에 의약분업 이후, 1차 의료에 종사하는 의원들을 대상으로 코감기에 관련된 진단의 다양성, 주사제의 사용, 항균제 사용에 대해 조사를 하였다. 재료 및 방법 : 2006년 7월과 8월에 걸쳐 서울, 경기, 인천에 개업하고 있는 일반의, 내과의, 이비인후과의, 가정의를 대상으로 122개 의원을 조사 하였다. 23명의 의과대학생들이 코감기 환자로 모의를 하여 개원의들의 진찰을 받은 후, 진단과 처방을 분석하였다. 코감기 증상은, 3일간 지속한 콧물과 코막힘을 주소로 했고, 발열과 오한은 없었으며, 목아픔과 기침은 약간 있는 정도로 하였다. 결과 : 조사한 의원에서 코감기에 사용한 경구 약제 수는 평균 4.71 (SD±0.951), 과별 차이는 없었다(P=0.99 by chi-square test). 부신피질호르몬은 10개(8.2%) 의원에서 처방하였다. 항균제는 50개(41.0%) 의원에서 처방하였으며, 세팔로스포린 17건, Augmentin 16건, amoxicillin (7) 또는 bacampicillin (1) 8건, 퀴놀론 5건, macrolide 3건, trimethoprim-sulfamethoxazole 1건이 었다. 과별로는 내과 34.9%, 이비인후과 52.5%, 가정의학과 33.3%, 일반외과 39.1%, 소아과 0%였고 통계적 의미는 없었다(P=0.41 by chi-square test). 주사를 권한 경우는 32 (26.4%)예였다. X-선 검사를 권유받은 1건 외에는 검사를 권유받지 않았다. 결론 : 이전 보고보다는 감기에서 항균제 사용률은 낮았으며, 진단을 하기 위한 검사가 적어 진단의 불분명을 극복하기 위한 것도 항균제 남용의 한 원인으로 생각된다. 주사제 처방률도 높은 듯하며 이는 빨리 증상이 호전되지 않을 때 병원을 바꾸는 환자들의 행위에 대한 반응일 가능성이 있으며, 항균제 사용 역시 빠른 증상 호전을 위한 것이어서, 환자의 행동 양상에 대한 조사가 필요하다.

回轉圓板에 의한 窒酸化에 關한 硏究

鄭渭得,奇文奉,安鍾洙 동아대학교 환경문제연구소 1989 硏究報告 Vol.12 No.1

RBC system was used in order to accomplish the COD removal and nitrification simultaneously in one step. The effect of pH on nitrification rate was examined in a suspended growth system, using microorganism scraped from the rotating discs, and an optimum pH value was between 7.5 and 8.5. Nitrification was not accompanied by a large amount of dissolved oxygen supplied in the system. This might be attributed to the increased thickness of the COD - utilizer - biofilm limited oxygen and substrate transfer for nitrification under high COD loading. It was found that the COD loading must be reduced to below 0.027㎎/㎠·hr, for nitrification to occur in the rotating disc system, and that a multi - stage system could improve the treatment of waste waster containing both high COD and inorganic nitrogen.

비확공성 골수강내 금속정을 이용한 폐쇄성 경골 간부 골절의 치료

정필현,황정수,채동주,문상호 東國大學校 1998 東國論叢 Vol.37 No.-

Most of closed fractures of the tibial shaft can be treated successfully with medullary nails. Reamed intramedullary nailing technique has become a good alternative method in treating the close tibial fracture. Unreamed interlocking intramedullary nailing has been employed successfully in the treatment of open tibial fractures. This study was undertaken to evaluate the result of interlocking intramedullary nailing without reaming in the treatment of closed fractures of the tibial shaft. From 1995 through 1998, fifty four cases of the closed, displace tibial fractures were treated by an unreamed intramedullary nailing and the average follow-up period was 1 year and 5 months(ranged from 12 months to 27 months). The results were as follows : 1. Fifty four cases were treated with closed, unreamed nailing technique and the nail which has 1mm smaller diameter than isthmic width of unaffected tibia was choosen. 2. The average time to bony union was achieved at 17 weeks without abundant periosteal b callus formation. 3. Eight tibiae were required the additional procedure such as autogenous bone graft, skin graft or local skin flap. We also have observed the screw breakage of ten tibiae but there were no intraoperative jamming or incarceration and no significant complicaton such as bending or breakage of the nail, shortening or non-union of the fractures. In conclusion, unreamed technique is an attractive method to treat the close, displaced fractures of the tibial shaft. 경골 간부 골절의 치료에 있어서 견고한 내 고정으로 조기 관절운동 및 체중 부하를 통해 골절 유합 및 기능 회복을 도모할 수 있는 골수강내 금속정 고정술이 널리 사용되어지고 있다. 골수강내 금속정술의 장점은 술 후 조기 관절운동과 체중 부하가 가능하여 이환율(morbidity)을 감소시키며 불유합의 발생률이 낮아는 것이다. 경골 간부 골절의 치료에 있어서 비확공성 금속정 고정술은 주로 심한 연부 조직 손상을 동반한 골절 및 개방성 골절의 치료에 적용되어지고 있으며, 대부분의 폐쇄성 경골 간부 골절의 치료로는 골수강 확공 후 골수강을 충만시키는 금속정을 삽입하는 확공정 금속정 고정술이 시행되어지고 있는 경향이다. 저자들은 폐쇄성 경골 간부 골절에 대해서 비확공성 금속정 고정술의 유용성 여부를 알아보기 위해서 동국대학교 의과대학 정형외과학교실에서 치료했던 54례를 평균 1년 5개월 추시하여 골 유합 기간, 합병증의 발생에 대해서 분석하였다. 본 연구에서 비확공성 금속정 고정술시 골 유합 기간은 확공성 금속정 고정술시와 비교하여 유의한 차이가 없음을 알 수 있었으며, 확공을 하지 않음으로써 발생할 수 있는 jamming이나 가는 직경의 금속정을 선택함으로써 우려되는 금속정의 휨, 부러짐 등의 합병증은 발생하지 않았다. 결론적으로 폐쇄성 경골 간부 골절의 치료에 있어서도 비확공성 골수강내 금속정 고정술은 유용한 방법으로 사료된다.

혈관내초음파로 평가한 스텐트를 삽입한관동맥의 형태학적 특징

정남식,홍범기,임세중,백성일,이문형,장양수,심원흠,조승연,김성순 대한순환기학회 1997 Korean Circulation Journal Vol.27 No.8