20km와 150km의 도로싸이클 주행이 혈중 렙틴, 지질과 호르몬 수준에 미치는 영향

최용어,권봉안,오재근,김범수,조준용,김문희 한국체육대학교 체육과학연구소 2000 韓國體育大學校附屬 體育科學硏究所論文集 Vol.19 No.1

Serum leptin, glucose, lipid profiles (free fatty acid, triglyceride, total cholesterol) were determined in two groups of subjects undergoing long and short strenous cycle race, 8 men who fasted overnight and then pedaled 20km cycle race and 8 men, 150km cycle race, respectively, Blood samples were collected before race, immediately after cessation of race and 2hr, 6hr after the end of race period. Cyclist pedaling 20km cycle race and cyclist pedaling 150km cycle race showed no statistical differences in leptin level. After 6hr of rest, leptin concentrations were gradually decreased but showed no statistical different in both groups. Epinephrine (p〈.01) and norepinephrine (p〈.001) concentration in comparison to pre-race levels were increased significantly. But insulin concentration in comparison to pre-race levels were decreased significantly (p〈.001). Glucose (p〈.01), free fatty acid (p〈.001), cholesterol (p〈.001) and triglyceride (p〈.01) were increased immediately after cessation of race in both groups.

캡슐화된 잠열 미립자 슬러리를 열 매체로 하는 축열식 냉방시스템

최준규,이재구,양현수,주태운,김필수 한국공업화학회 2003 응용화학 Vol.7 No.1

Microcapsules containing tetradecane as the phase change material (PCM) and ashell of meolamine-formalin resin were prepared by in situ polymerization. Tooptimize the encapsulation process, experiments were performed under various reaction conditions. Microcapsules with a high uniformity could be prepared, and the ratio of breakage of the microcapsules was less than 6% over 10,000 cycles using by a circulation pump. The cooling system, which has adopted MPCM slurry as a media for transporting cold thermal energy, is designed to investigate the performance of newly developed coolant. The discharging times of cold energy in circulating 20 wt% MPCM slurry are lasted to 260 minutes as long as the sensible cooling system. According, it was demonstrated that the microcapsules prepared in the current research are suitable for potential application as hat transporting media.

경포호의 어류상 및 어류군집 특성

최준길,박승철,장영수,이광열,최재석 강원대학교 부속 환경연구소 2005 Journal of the Environment Vol.2 No.-

The characteristics of ichthyofauna and fish community in the Lagoon Gyeongpo, Korea were investigated from May to October 2005. The total number of fish caught during the period was representing 26 specis and 18 families. Most dominant species was T. hakonensis(50.65%) and subdominant specis was A. flavimaus(25.41%). K. punctatatus(11.07%), M. cephalus(6.53%), E. japonicus(1.46%), C. castaneus(1.01%) were also numerous. The total biomass of collected fish showed 147.00kg, 135.83kg, 85.60kg,23.76kg, repectively. A pattern of the fish community according to seasonal veriations appear to be related tp spawning periods of species. Comparison of the ichthyofauna in present study with the references from early years suggests that there has been a gradual decrease, in composition, of primary freshwater specis accompanying with the increase of peripheral freshwater and seawater specis.

두부외상환자에서의 예후인자

최성혁,문준동,김수진,문철규,이성우,홍윤식 대한응급의학회 2001 대한응급의학회지 Vol.12 No.2

Background: Predicting outcome after head trauma is of great interest for clinicians, especially in the early stage. It may provide a basis for therapeutic strategies and may be helpful to select different approaches. But, reliable outcome prediction from head trauma is still unresolved. The purpose of this study is to determine which clinical parameters can be used effectively after an event of head trauma. Methods: In our study we studied head trauma patients who came to the Emergency department of Korea University Medical School Anam Hospital from the 1st of June 1998 to 31th of January 2000, looked into medical records, and studied the records in a retrospective manner. The head trauma patients were divied into two group, a) favourable outcome-related and b) unfavourable outcome-related. The two groups were then subdivided according to their sex, age, the mechanism of their injury, the time they came in, alcohol drinking, loss of consciousness, vomiting, pupil change, previous medical illness, associated injuries and were seperately compared and analyzed. And the factors affecting Glasgow Outcome Scale(GOS) were analyzed in the parameters of Injury Severity Score(ISS), Revised Trauma Score(RTS), Glasgow Coma Scale(GCS), motor score of GCS(mGCS), Marshall Computed Tomographic Classification(MCTC). Statistically, t-test and Mann-Whistney rank sum test using Jandel-sigma were used in the study and then were assessed in Chi-square analysis methods. The statistical significance was determined at a level of p less than 0.05. Results: The total of the head trauma patients, added up to 129 people, 99:males and 30:females. Among this sum, 99 patients showed a favourable outcome and 30 patients showed an unfavourable outcome at discharge. The causes of injury included: automobile accident in 42 cases; fallss in 26; assaults in 6; and accidental-slipping injury etc in 55 cases. 12 patients had bilateral unreactive pupils on admission, 2 had unilateral reactive pupils, and 113 had bilateral reactive pupils. Compared to the favourable outcome-related head trauma group, the unfavourable outcome-relared head trauma group had more history of loss of consciousness, unreactive pupils and tended to have previous medical illness. There were no difference in alcohol related, vomiting and associated injuries between two groups(favourable outcome-related head trauma group: unfavourable outcome-related head trauma group). Substantial difference were observed in GCS, mGCS, ISS, RTS, MCTC between two groups. Patients with unfavourable outcome had a significantly higher ISS, lower RTS, lower mGCS. After MCTC, patients with mass lesion had unfavourable outcome than patients with diffuse injury. Conclusion: Age, history of loss of consciousness, previous medical illness and unreactive pupil change are predictives of outcomes of head trauma patients with respect to Glasgow outcome scale. The lower GCS, lower RTS, lower mGCS, higher ISS, mass lesion based on CT scan provide poorer prognostic outcome in patients with head trauma. Use of prognostic factors thorough complete history taking and physical examination would provide useful prognostic information and facilitate improved therapeutic decision-malting in head-injuried patients.

중증 외상환자에서 염기 결핍수치의 유용성

문준동,김수진,문철규,최성혁,전정민,이성우,홍윤식 대한응급의학회 2001 대한응급의학회지 Vol.12 No.3

Background: This study's objective was to determine the prognostic value of the base deficit measured in the emergency department(ED) and to determine whether base deficit can provide information not provided by advanced injury scoring system. Methods: This study was a retrospective analysis of data collected for two years. Thirty-two severe trauma patients who were admitted to the Emergency Department of Korea University Hospital were included in this study. The patients were divided into two groups: the normal base deficit group(-3 mmol/L to 3 mmol/L) and the elevated base deficit group(>3 mmol/L). The base-deficit value, age, sex, head injury, organ failure rate, and survival were considered, and the also Revised Trauma Score(RTS), Acute Physiology And Chronic Health Evaluation(APACHE II), and Injury Severity Score(ISS) were measured. Result: The elevated base-deficit group showed a lower survival rate and a higher organ failure rate compared to the normal base deficit group. Logistic Regression showed a strong association between base deficit and mortality rate. Among the previous injury scoring Systems(RTS, APACHE II, ISS), base deficit had the strongest correlation with RTS. By using base deficit value and the RTS together, we obtained a higher positive predictive value than that obtained by using base deficit or RTS alone. Conclusion: The admission value of the base deficit in the ED is a useful tool in predicting the outcome in severe trauma patients, and it can be an adjunct to previous injury scoring systems. As an advanced injury scoring System is developed in the future, the base deficit may have some significant role.

관상동맥 누공에 의한 급성 심근 경색 1예

서유승,최재웅,송창섭,조용범,양진수,박준섭,정인수 대한내과학회 2003 대한내과학회지 Vol.65 No.2

관상동맥 동정맥루 기형은 매우 드문 질환으로 치료가 불필요한 경우가 대부분이나 coronary steal 현상으로 인해 증상이 발생하거나 합병증이 발생한 환자에 대해선 치료를 요한다. 최근에는 시술에 적합한 누공을 가진 선택된 환자군을 대상으로 카테터를 이용한 중재적 시술이 시행되어 수술적 치료와 유사한 결과를 얻고 있다. 저자들은 젊은 남자에서 관상동맥 동정맥루 기형과 동반된 급성 심근 경색증을 진단하여 비 수술적 방법인 카테타 코일 색전술로 성공적 치료 후 증상 및 심근 재관류에 호전을 보인 증례를 경험하였기에 문헌고찰과 함께 보고하는 바이다. We report a case of coronary fistula between the left anterior descending and main pulmonary artery complicating acute non-Q wave myocardial infarction. A 27-year-old man visited emergency department because of severe chest pain lasting two hours. The electrocardiogram showed ST segment elevation in precordial leads V3~6. Cardiac enzymes were as follows;CK-MB:36.44 IU/L T-T:0.489 ng/mL, CPK:542 IU/L, and LDH:475 IU/L. The thallium-201 dipyridamole stress perfusion scan showed perfusion defect and reversed redistribution in the anteroseptal wall. The coronary angiogram revealed coronary artery fistula between the proximal left anterior descending artery and main pulmonary artery without significant stenoses of coronary arteries. The result of ergonovine test was negative. After micro-coil embolization to the coronary fistula, symptoms were improved. Follow-up thallium-201 scan showed normalized blood flow in the left anteroseptal wall.

기분장애를 주소로 내원한 Binswanger씨 병 1례

채정호,전태연,윤수정,최성빈,김대진,김광수 대한생물치료정신의학회 2000 생물치료정신의학 Vol.6 No.1

We report a 70 year-old man with Binswanger's disease associated with mood symptoms. He was apparently well until 15 years ago when the treatment-resistant atypical mood symptoms had been appeared. He showed a fluctuating course in mental disturbance, such as irritable and labile affect, emotional incontinence, and irritable behavior. Two years ago, he was diagnose as hypertension, renal failure, and heart failure. He was admitted to psychiatric ward due to irritable mood, dysarthria, lack of bladder control, gait disturbance, and impulsive behaviors, which had been aggravated during the last 2 months. In physical examination, he had hypertension and both pretibial pitting edema was revealed, and also in neurological examination, exaggeration of deep tendon reflexes and weakness of extremities were found. On mental status examination, he showed irritable and labile mood with mild cognitive disturbances. Brain MRI demonstrated multifocal high signal intensity in periventricular white matter, both basal ganglia, and thalami on the T2 imaging. These findings were compatible with Binswanger's disease with mood symptoms.

국산 감잎으로부터 추출한 폴리페놀화합물군이 지질대사에 미치는 영향

백경연,손준호,박무희,성태수,최청 경산대학교 생명자원개발연구소 2000 생명자원과 산업 Vol.4 No.-

한국산 감잎으로보터 polyphenol 화합물군을 분리 및 정제하여 5주간 고지방 식이를 한 후, 혈장 및 간장에서의 지질대사에 미치는 영향을 분석한 결과 혈장에서는 polyphenol 화합물군 Ⅱ에서 총지질, 총콜레스테롤이 유의성 있게 감소하였다. 또한 간장에서는 총지질, 중성지질이 대조군에 비해서 유의성 있는 결과가 나타났다. 5주 동안 고지방 식이를 한 후 분변을 채취하여 총지질, 총콜레스테롤 및 중성지질을 측정한 결과 감잎에서 추출한 polyphenol 화합물 군이 고지방식이 만을 섭취 시킨 대조군에 비해 다소 감소되는 경향을 보였다. 감잎 화합물군을 섭취시킨 후 총단백질과 알부민 함량을 측정한 결과 대조군과 실험군에서 유의성 있는 차이는 나타나지 않았다. This study was conducted to investigate the effects of the polyphenol fraction isolated from persimmon leaves on the reduction of fat accumulation in rats fed on hight fat diet for 5 weeks. It was to examine metabolism by analyzing biochemically the fat composition in serum was remarkably reduced in polyphenol fraction Ⅱ as compared with the control group. The liver was that the levels of total lipid and triglyceride was significantly lower than the control group. The contents of total lipid, total cholesterol and triglyceride in feces were tended to be slightly increase polyphenol fraction compounds compared to control group. In the total protein and albumin, all experimental groups were lower compared to control group, which were not significant.

니트섬유강화 복합재료의 기계적 성질에 관한 연구

한길영,이동기,최병기,오환교,신용욱,전수영 조선대학교 에너지.자원신기술연구소 1999 에너지·자원신기술연구소 논문지 Vol.21 No.2

Using conventional textile techniques such as weaving, braiding, knitting and stitching it is possible to produce a wide range two and three dimensional fiber preforms. However, so far only a limited attention has been given to knitted fabrics in composite industry. This is mainly due to the opinion that knitted fabric reinforced composites posses low mechanical properties owing to their looped fiber architecture. But it is possible to obtain desired mechanical properties by selecting proper knitted fabric structure. In this paper, tensile failure load and displacement of one yarn, four yarns and knitted fabrics of ten yarns of kevlar fiber were determined experimentally in the unidirection. Mechanical properties of plain weft knitted fabrics reinforced composite intrusion beam for car side door application were investigated experimentally, which compared with desire value of American Fedral Motor vehicles Safety Standard (FMVSS) and presented the results.

신농양에 동반된 척추 경막외 농양 1예

엄흥식,김준재,김현수,박영정,최상봉,박원도,김상현 인제대학교 2006 仁濟醫學 Vol.27 No.-

Spinal epidural abscess is an uncommon but readily diagnosable and treatable potential cause of paralysis and death. The incidence of spinal epidural abscess is approximately one to two cases per 10,000 hospital admissions in the United States. The symptoms of spinal epidural abscess are varied but include lower back pain, fever, local tenderness and neurological deficit, especially in such high risk groups as patients with diabetes, intravenous drug abuse, chronic renal failure, alcoholism, liver disease and immunocompromization. Infections of the epidural space originate from contiguous spread or via hematogenous routes from a distant source. Cutaneous sites of infection are the most common remote sources, especially in intravenous drug users. S. aureus accounts for most spinal epidural abscess infections, followed by streptococci and gram-negative anaerobes. We here report a case of spinal epidural abscess in renal abscess patient complaining of fever and back pain. A 71-year old female patient was admitted to epigastric pain and oliguria. She had been diagnosed as acute renal failure and treated with hydration. After third hospital days, she shows a persistent fever and drowsy mentality. Abdominal computed tomography demonstrated renal abscess. She was treated with intravenous antibiotics, third cephalosporin. Blood cultures and urinary culture revealed Escherichia, coli. After fourteenth hospital days, she developed back pain, muscle weakness and decreased sensation of lower extremities. Spine MRI demonstrated spinal epidural abscess with spinal cord compression. Surgical drainage with laminectomy was performed. After treatment of intravenous antibiotics and surgical drainage, she discharged with improved back pain and neurological symptom.