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전성진,서기석,김상태,허만하 고신대학교(의대) 고신대학교 의과대학 학술지 1990 고신대학교 의과대학 학술지 Vol.6 No.1
We report 2 cases of erythema elevatum diutinum, one in a 53-year-old woman(case 1) and the other in a 70-year-old woman(case 2). The patients had painful erythematous papules, plaques, bullae and nodules on the dorsa of both hands. ASLO value showed marked elevation in case 1. A test for recall antigen(Multitest CMI) showed positive reaction to streptococcal antigen(Lancefield group C) in case 2. Histopathologic findings showed dense perivascular infiltration of neutrophils, lymphoid cells and nuclear dusts with deposition of fibrinoid materials withiin and around the blood vessel walls. On administration of dapsone, her skin lesions improved remarkably in case 2.
Mycobacterium fortuitum에 의한 피부감염증
전성진,서기석,김상태,유경식,박인달,장명웅 ( Seong Jin Jeon,Kee Suck Suh,Sang Tae Kim,Gyung Sig Yoo,In Dal Park,Myung Woong Chang ) 대한피부과학회 1991 대한피부과학회지 Vol.29 No.5
We report a case of cutaneous Mycobacterium fortuitum infection occurring in a 53-year-old man with multiple subcutaneous nodules on his right thigh and right lower leg. He has been treated with long-term systemic corticosteroids for his nephrotic syndrome. He had no constitutional symptoms and no lymphadenopathy. Laboratory findigs were within normal limits except for abnormal values for nephrotic syndrome. The skin biospy specimen showed a mixed pattern of epithelioid granuloma with micropseudocyst containing acid-fast bacilli. Methenamine silver stain was negative. The cultures from the skin biopsy specimens on Ogawa media(3% KH_2PO_4) at 24℃, 32℃, 37℃, yielded colonies of M. fortuitum after 4 days. Culture on Sabouraud media revealed no growth. DOPA reaction was negative. Nitrate reduction test was positive and Tween 80 hydrolysis test was negative. Urine and sputum cultures for atypical mycobacteria were negative. This M. fortuitum was sensitive to amikacin or tetracycline. Four months later, the skin lesions regressed without therapy.
레일레이 감쇄 채널에서 타이밍 또는 위상 오류를 갖는 혼합 간섭 제거 기법의 성능 분석
전성진,박상규 한국통신학회 2000 韓國通信學會論文誌 Vol.25 No.12
이 논문에서는 레일레이 감쇄 채널에서 타이밍 또는 위상 오류를 갖는 혼합 간섭 제거 기법을 이용한 DS/CDMA 시스템의 평균 비트 오류 확률을 분석한다. 유도한 결과를 타이밍 또는 위상 오류를 갖는 일반 상관 수신기의 평균 비트 오류 확률과 비교 분석한다. 평균 비트 오류 확률은 정규 근사법을 이용하여 유도하며, 칩 시간에 대한 타이밍 오류의 비, 위상 오류의 정도, Eb/No에 따라 혼합 간섭 제거 기법을 이용한 수신기의 성능을 분석한다. 혼합 간섭 제거 기법을 이용한 수신기의 평균 비트 오류 확률은 타이밍 또는 위상 오류에 의해 증가하나 타이밍 또는 위상 오류가 작은 경우 오류가 없는 일반 상관 수신기에 비해 성능이 크게 개선된다.
유리 산소 기 청소제가 자외선 B에 의한 생쥐 표피 Langerhans 세포의 ATPase 표현에 미치는 영향
전성진,서기석,김상태 ( Seong Jin Jeon,Kee Suck Suh,Sang Tae Kim ) 대한피부과학회 1991 대한피부과학회지 Vol.29 No.5
N/A The Effect of Free Oxygen Radical Scavengers on the Expression of ATPase of Mouse Epidermal Langerhans Cells After UVB Irradiation Seong Jin Jeon, M.D., Keo Suck Suh, M.D., Sang Tae Kim, M.D. Department of Dermatology, Kosin Medical College, Pusan, Korea Langerhans cells are dendritic cells with specific granules in their cytoplasm, and Ia antigen and receptors for Fc portion of IgG and C3 on their cell surface. They are known to perform immunological functions such as processing and presentation of antigen to T cells in delayed type contact hypersensitivity, and surveillance of virus and cancer. It is known that Langerhans cells are damaged functionally and morphologically by UVB irradiation, but the mechanisms are still not known or are largely speculative, though keratinocytes are known to be damaged by reactive oxygen species generated by UV irradiation. It was the investigator`s idea that reactive oxygens generated by UVB exposure on skin could also play a role in Langerhans cell damage and that free oxygen radical scavengers would prevent the damage of Langerhans cells from UVB. Free radical scavengers used in this experiments were superoxide dismutase(SOD), α-tocopherol acetate(α-TCA) and sodium azide(SA), and these chemicals were known to inactivate O_2^-, OH and 1^O_2 respectively. Groups of BALB/c mice were injected intraperitoneally wth 0.2㎖ of SOD(0.1 or 1.0mg/㎖), α-TCA(10^4 or 10^2mole) or SA(10^4 or 10^2mole) just before or immediately after UVB irradiation(40mJ/㎠). Control mice given saline, saline plus UVB irradiation or free oxygen radical scavengers without UVB. Seventy two hours after the irradiation of UVB, biopsy specimens were taken from the ears of mice. Number, area and perimeter of Langerhans cells were evaluated using ATPase-stained epidermal sheets. The results were as follows : 1. The number of Langerhans cells was significantly decreased by UVB irradiation(p<0.01). 2. The area and perimeter of Langerhans cells were significantly increased by UVB irradiation(p<0.01). 3. SOD could prevent Langerhans cell damage significantly from UVB(p<0.05). 4. For α-TCA, only high dose(10^2mole) and treatment immediately before UVB irradiation showed protective effect from Langerhans cell damage(p<0.05). 5. SA had no protective effect regardless of the doses or time of administration(p>0.05).
전성진,서기석,김상태,허만하 고신대학교 의학부 1990 高神大學校 醫學部 論文集 Vol.6 No.1
We report 2 cases of erythema elevatum diutinum, one in a 53-year-old woman(case 1) and the other in a 70-year-old woman(case 2). The patients had painful erythematous papules, plaques, bullae and nodules on the dorsa of both hands. ASLO value showed marked elevation in case 1. A test for recall antigen(Multitest CMI^( )) showed positive reaction to streptococcal antigen(Lancefield group C) in case 2. Histopathologic findings showed dense perivascular infiltration of neutrophils, Iymphoid cells and nuclear dusts with deposition of fibrinoid materials within and around the blood vessel walls. On administration of dapsone, her skin lesions improved remarkably in case 2.