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최종효(Choi Jong-Hyo),오명원(Oh Myoung-Won),김병선(Kim Byung-Seon) 한국태양에너지학회 2009 한국태양에너지학회 학술대회논문집 Vol.2009 No.11월
Considerable part of energy consumption is occurred by through buildings. Especially, Lighting energy consumption is most part of one in building. There is very various ways and systems for saving lighting energy. In method, It can be divided Passive Daylighting System and Active Daylighting System. Louver, Screen and use of window's character is representative ways of passive system. Reflection mirror, optical pipe and optical fiber is representative method of active system. Introducing day light on which place can't be introduced day light by typical method is important advantage of active system. Except introducing day lighting methods, efficient lighting management system can save lighting energy. It called lighting automation system. Representatively, Occupancy-related automation and Brightness-related automation system is that. According to occupancy and introducing daylighting level properly operate lamp's intensity of illumination that can save lots of energy. Though Introducing daylighting method, effective lighting system we can get proper intensity of illuminance level and energy saving.
IL-4와 IFN-γ 유전자 다형성들의 아토피에 대한 상호 작용 모형
이준혁 ( June Hyuk Lee ),최종효 ( Jong Hyo Choi ),윤진아 ( Jin A Yoon ),박성우 ( Sung Woo Park ),김도진 ( Do Jin Kim ),장안수 ( An Soo Jang ),박종숙 ( Jong Sook Park ),어수택 ( Soo Taek Uh ),임태연 ( Tai Youn Rhim ),김용훈 ( Yong 대한천식알레르기학회 2008 천식 및 알레르기 Vol.28 No.1
Background: Asthma is a common complex genetic disease. While the T-helper cell 1 pathway is determined by cytokine interferon-gamma (IFN-γ), the T-helper cell 2 pathway is determined by IL-4. These comprise two alternative CD4+ T-cell fates with functional consequences for the host immune system. We investigated the effect of interaction between and IL-4 SNPs on asthma or atopy. Method: Three hundred asthmatics and 300 unrelated normal controls were enrolled. Two candidate SNPs of the IFN-γ gene and two SNPs of the IL-4 gene were selected. Gene-gene interactions were tested using the multi-factor dimensionality reduction (MDR) method and interaction information analysis on the basis of Shannon entropy. Result: In MDR analysis, a combination of IFN-γ+2459A>G and IL-4-589C >T was the best model to predict atopy. In interaction information analysis, there was a strong effect of interaction between theses two SNPs on atopy. This combination showed a stronger effect than each SNP alone. In addition, IL-4-589C >T showed a strong effect on atopy with IFN- γ+2671C >T and with IFN- γ+2459A >G. Theses effects were prominent in normal controls. Conclusion: From the findings of a statistical interaction model, it is suggested that IFN-γ and IL-4 gene SNPs may contributes to the development of atopy by interacting with each other. (Korean J Asthma Allergy Clin Immunol 2008;28:45-52)
10년간 크기가 서서히 증가한 고립성 폐결절이 선암으로 진단된 1예
권기두 ( Ki Du Kwon ),김지형 ( Ji Hyeong Kim ),김대용 ( Dae Yong Kim ),최문한 ( Moon Han Choi ),최재혁 ( Jae Huk Choi ),신동원 ( Dong Won Shin ),최종효 ( Jong Hyo Choi ),이설희 ( Sul Hee Yi ),윤진아 ( Jin A Yun ),최재성 ( Jae Sung 대한결핵 및 호흡기학회 2008 Tuberculosis and Respiratory Diseases Vol.64 No.4
임상 연구 : 간경변 환자의 신기능 평가에서 Cystatin C의 유용성에 대한 연구
김지형 ( Ji Hyeong Kim ),신동원 ( Dong Won Shin ),이설희 ( Sul Hee Yi ),최문한 ( Moon Han Choi ),최종효 ( Jong Hyo Choi ),김대용 ( Dae Yong Kim ),박무용 ( Moo Yong Park ),최수정 ( Soo Jeong Choi ),김상균 ( Sang Gyune Kim ),김진국 대한신장학회 2008 Kidney Research and Clinical Practice Vol.27 No.6
목적: Cystatin C는 사구체 기저막을 자유로이 통과하여 세뇨관에서 재흡수 완전 분해되어 사구체 여과율 (glomerular filtration rate; GFR)을 노인, 간경변 환자처럼 근육 위축을 동반한 환자에서 creatinine 보다 정확하고 민감하게 반영하는 것으로 알려져 있다. 이에 저자들은 간경변증 환자에서 cystatin C를 근거로 하는 신기능 평가의 유용성을 연구하였다. 방법: 2007년 2월부터 9월까지 순천향대학교 부천병원에 입원한 안정된 간경변 환자를 대상으로 혈청 creatinine (MDRD와 Cockroft & Gault 공식), 24시간 소변 검사, 혈청 cystatin C (Hoek와 Larsson 공식)로 측정한 GFR 값을 크롬-EDTA로 측정한 GFR를 기준으로 비교하고, 신기능을 조사하였다. 결과: 총 46명의 환자 중 Child classification A가 10명, B가 17명, C가 19명이고, 평균 creatinine 1.1±0.56 mg/dL이며, 평균 cystatin C는 1.2±0.5 mg/L이었다. 평균 GFR은 크롬-EDTA로 67.8±29.4 mL/min/1.73m2이었다. MDRD 공식으로 81.6±29.6 mL/min/1.73m2, C&G로 79.9±29.3 mL/min/1.73m2, 24시간 소변의 Cr 배설율로 62.7±29.8 mL/min/1.73m2, Hoek 공식으로 77.0±28.6 mL/min/1.73m2, Larsson 공식으로 80.0±35.2 mL/min/1.73m2 이었다. Cystatin C는 당뇨, 연령, 성별에 따라 차이가 없었다. Cystatin C는 BUN (r=0.422), MDRD 공식 (r=-0.715), C&G 공식 (r=-0.659), 24시간 소변의 Cr 청소율 (r=-0.536), 크롬-EDTA 결과 (r=-0.617)의 GFR과 의미있는 상관 관계를 보였으며, MELD score, 혈청 albumin, Creatinine, PT, bilirubin과는 관련이 없었다. Cystatin C을 이용한 Hoek 공식 (r=0.657)과 Larsson 공식 (r=0.647)의 GFR은 MDRD (r=0.550)와 C&G 공식 (r=0.458)에 비해 크롬-EDTA와 높은 상관 관계를 보였다. Cystatin C의 크롬-EDTA GFR에 대한 회귀방정식은 -33.7×cystatin C+106.4 mL/min 이었다. 신기능의 차이는 없으나, cystatin C는 모든 간경병증 환자에게서 상관관계가 높았다. 결론: Cystatin C는 간경변증 환자에게서 혈청 Creatinine보다 정확하게 신기능을 반영하고, 간경변증 정도에 관계없이 상관관계가 높았다. Purpose: Cystatin C is known to predict the glomerular filtration rate (GFR) more precisely in patients with substantial muscle atrophy, such as liver cirrhosis, compared to creatinine. We evaluated the usefulness of cystatin C for prediction of renal function in liver cirrhosis patients. Methods: From February 2007 to September 2007, we evaluated the renal function in patients with liver cirrhosis who were admitted to Soonchunhyang University Bucheon Hospital. We compared renal function with GFR as estimated by creatinine (Modification of diet in renal diseases; MDRD, the Cockroft&Gault equation; C&G, Creatinine clearance; CCr) and cystatin C (the Hoek and Larsson equations) with that of the GFR as calculated by Cr-EDTA. Results: A total of 46 patients were enrolled. The mean GFR was 67.8±29.4, 81.6±29.6, 79.9±29.3, 62.7±29.8, 77.0±28.6, 81.0±35.2 mL/min/1.73m2 according to Cr-EDTA, MDRD, C&G, CCr, Hoek and Larsson equations, respectively. Cystatin C showed a correlation to MDRD (r=-0.715), C&G (r=-0.659), CCr (r=-0.536) and Cr-EDTA GFR (r=-0.617). GFR by the Hoek (r=0.657) and the Larsson (r=0.647) equation using cystatin C showed a higher correlation with Cr-EDTA GFR than GFR by MDRD (r=0.550) and C&G equation (r=0.458). Conclusion: Cystatin C is a more accurate predictor of renal function than creatinine in patients with liver cirrhosis.
최종효,박세경,노미오,정찬희,정정화,박형규,김여주,목지오,김상진,김철희,변동원,유명희,서교일 순천향의학연구소 2008 Journal of Soonchunhyang Medical Science Vol.14 No.1
Severe hypertriglyceridemia is a rare condition in pregnancy, which can be a life-threatening complication if the degree of hypertriglyceridemia is severe enough. Most cases of severe gestational hypertriglyceridemia that have been reported previously in the literature were caused by genetic mutations or familial. hypertriglyceridemia secondary to lipoprotein lipase deficiency or apolipoprotein C-II deficiency. but reports of severe gestational hypertriglyceridemia is rare in korea. We report a case of recurrent severe hypertriglyceridemia induced pancreatitis in pregnancy. 임신 중에 중증 고중성지방혈증은 드물게 발생한다. 하지만 중증 고중성지방혈증에 의해 중증의 췌장염이 발생할 경우 산모나 태아에게 치명적인 합병증이 될 수 있다. 저자들은 임신시 재발한 고중성지방혈증에 의해 발생한 췌장염 중례를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.
일개 대학 병원에서 경험한 뎅기열-뎅기출혈열 4예와 국내 문헌 고찰
최문한,추은주,김태형,전민혁,박의주,신동원,이설희,최종효 대한감염학회 2008 감염과 화학요법 Vol.40 No.6
Dengue virus infection is an emerging imported disease in Korea. A total of 4 cases of dengue fever or dengue hemorrhagic fever diagnosed at Soonchunhyang University Hospital in Bucheon between January 2001 and December 2007 were retrospectively reviewed, In addition, relevant domestic literatures from Korean bibliographic databases, which matched 'dengue fever', 'dengue hemorrhagic fever' or 'dengue shock syndrome' as key words, have been reviewed. Ten articles (13 patients) met the inclusion criteria and were included in this review. All the patients except for one who was infected in Africa, were infected in Asian countries: Philippines (4), Indonesia (3), India (2), Cambodia (2), Sri Lanka (1), Thailand (1), Bangladesh (1), Myanmar (1), and Malaysia (1). Clinical manifestations after returning from abroad were as follows: fever (100%), chills (82%), headache (65%), myalgia (53%), nausea (41%), neutropenia (82%), thrombocytopenia (82%) and elevation of AST (82%) and ALT (53%). Most of the patients improved with conservative care except for one who died of dengue shock syndrome.
에이즈 환자에서 발생한 파종성 조류형 결핵균 감염 1예
이설희,최재혁,최문한,신동원,최종효,김태형,전민혁,고은석,추은주 대한감염학회 2008 감염과 화학요법 Vol.40 No.5
Nontuberculous Mycobacteria, especially Mycobacterium avium complex (MAC) infection is a common opportunistic infection in patients with acquired immunodeficiency syndrome (AIDS). In patients with AIDS, MAC infection more frequently presents as disseminated form rather than localized infection. Disseminated MAC infection is associated with a high mortality rate in patient with AIDS. We report a case of disseminated MAC infection in an AIDS patient involving bone marrow, mediastinal lymph node and lung.
황색포도알균이 가장 흔한 원인인 우리나라 4개 대학병원의 감염성심내막염의 특징
서성우,김태형,현민수,추은주,전민혁,문철,송단,김종화,이용관,최종효,전웅,조영신,최문한 대한감염학회 2008 감염과 화학요법 Vol.40 No.6
Background : To evaluate whether Staphylococcus aureus is actually the leading cause of infective endocarditis in Korea, investigation on updated clinical pictures, treatments, and prognosis was performed. This study also aims to describe differences in clinical characteristics of infective endocarditis in patients undergoing maintenance hemodialysis. Materials and Methods : Fifty five patients who were diagnosed with infective endocarditis, using modified Duke criteria, at 4 Soon Chun Hyang University hospitals (located in Seoul, Bucheon, Cheonan and Gumi) from January of 2000 to June of 2007 were enrolled, Patients were separated into two groups; those on hemodialysis and those who were not on hemodialysis (control group). Medical records and laboratory results of each patient were reviewed retrospectively. Results : The positive rate of blood culture was 72.7%. Staphylococcus aureus was isolated in 38.2% of the patients making it the most common causative organism of infective endocarditis. It was also the most common organism in both hemodialysis group and non-hemodialysis group. Six patients (10.9%) died while admitted to the hospital and the in-hospital death rate for hemodialysis group was significantly higher. Conclusion : In most parts of the world, S. aureus is increasingly becoming the principal causative organism of infective endocarditis. To our knowledge, this is the first study that shows S. aureus to be the most common causative organism of infective endocarditis in Korea, and that Korea is not except from this global epidemiology.