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임희정 ( Hee Jung Lim ),박원 ( Won Park ),박보형 ( Bo Hyoung Park ),김현정 ( Hyun Jeong Kim ),김성수 ( Sung Soo Kim ),이용환 ( Yong Hwan Lee ),송정수 ( Jung Soo Song ),진희승 ( Hee Seung Jin ),최원식 ( Won Sick Choe ) 대한류마티스학회 2003 대한류마티스학회지 Vol.10 No.1
Wegener`s granulomatosis (WG) is a syndrome characterized by necrotizing granulomatosis lesions in the upper and lower respiratory tracts, glomerulonephritis, and generalized vasculitis involving both arteries and veins. This syndrome usually affects the upper and lower respiratory tract and the kidneys. Some patients with WG have cardiac involvement such as pericarditis, myocarditis, valvulitis, arrhthymia, coronary arteritis, and rarely cardiomyopathy. Ocular manifestations include keratitis, conjuntivitis, scleritis, retro-orbital granuloma with proptosis. Uncommonly, blindness may occur due to retinal vasculitis and optic neuritis. We report a 45-year-old female patient with WG who had sinusitis and lung nodules. She complained of sudden chest pain. Electocardiography and nuclear myocardial perfusion study suggested transient myocardial ischemia. During the active course of the disease, she complained of severe pain in the right eye-ball with decreased visual acuity. Subsequently, she developed monocular blindness probably due to retinal vasculitis.
심바스타틴이 인체망막색소상피세포에서 생산된 혈관내피성장인자에 미치는 효과
김경진,김경실,김나래,진희승,Kyoung Jin Kim,Kyong Sil Kim,Na Rae Kim,Hee Seung Chin 대한안과학회 2012 대한안과학회지 Vol.53 No.6
Purpose: To examine the effect of simvastatin on vascular endothelial growth factor (VEGF) expression in cultured human retinal pigment epithelial (RPE) cells under oxidative stress. Methods: RPE cell viability was measured using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay after 24 hours of incubation with various concentrations of simvastatin or H2O2. Cultured human RPE cells were pretreated with various concentrations of simvastatin and then incubated with 100 μm H2O2. After 24 hours of incubation, an enzyme-linked immunosorbent assay (ELISA) was performed to evaluate the expression of VEGF. Results: Simvastatin showed no toxicity up to 10 μm, but cell viability gradually decreased with increased concentration of simvastatin. Human RPE cells showed increased VEGF expression when exposed only to H2O2. When RPE cells were preincubated with simvastatin and later exposed to H2O2, VEGF expression was relatively lower. Conclusions: Simvastatin downregulated the expression of VEGF in human RPE cells under oxidative stress. Simvastatin may have some clinical benefits in preventing retinal diseases associated with VEGF. J Korean Ophthalmol Soc 2012;53(6):849-855
국내 회전익 조종사 항공 신체 검사 2015년 연간 현황
서병성(Byung-Seong Suh),현우석(WooSeok Hyun),곽인호(Inho Kwak),권영환(Young Hwan Kwon),김규성(Kyu-Sung Kim),안철민(CheolMin Ahn),이진우(Jin-Woo Lee),진희승(Hee Seung Chin),하윤(Yoon Ha),장정순(JoungSoon Jang) 한국항공우주의학협회 2017 항공우주의학회지 Vol.27 No.3
The medical certification for pilots is required by the aviation safety authority in most countries based with the International Civil Aviation Organization (ICAO) recommendation. In this study, medical data of the year of 2015 for the Korean rotary-wing pilot population, including examination findings and reasons of unfitness were reviewed by retrospective analysis. Among the total 591 cases, 64 (10.8%) were determined to be conditioned fit as a consequence of abnormal findings. Three (0.5%) were denied certification as unfit. Hearing loss (32.8%) was the most common cause of disqualification differing from that of fixed-wing pilots. It is not surprising data in that helicopter is notorious for its noise and vibration when flying compared with fixed-wing aircraft. Hypertension (23.9%) and diabetes (9%) were following causes. There was an increasing variation in medical unfitness as pilots" age and total flight time are increased respectively. Rate of the conditioned fit tends to be significantly increasing the age of 55 or more or the flight time of 5,000 hours. These results suggest that aeromedical decision should be made under understanding of the influence of age, total flight time and aircraft type flight environment to ensure flight safety.