건강한 성인에서 발병한 칸디다와 연관된 위궤양 1례

박지훈,이상혁,김희,이재호,박성재,지삼룡,양성연,박은택,이연재,설상영,정정명,강미선 白中央醫療院 2005 仁濟醫學 Vol.26 No.1

Fungus such as Candida albicans is a normal flora that is frequently found in the oral cavity, gastrointestinal tract, genitourinary tract, vaginal mucosa in a normal person. However, candida can cause opportunistic infection in an immune compromised host. Candidiasis has broad spectrum of disease from mucocutaneous infection to invasive or disseminated infection. But, it is rarely reported that candida is associaed with gastrointestinal tract disease in a healthy adult. The case of gastric ulcer associated with candida particularly in a health adult is reported with relevant literature.

간세포암의 고주파 열치료 후 천자침 경로를 통한 전이 1례

조영완,박석주,진한영,김준영,이재익,강명주,박정하,윤정희,박성재,지삼룡,이연재,이상혁,설상영 인제대학교 2006 仁濟醫學 Vol.27 No.-

Radiofrequency ablation(RFA), as a form of minimally invasive therapy for hepatocellular carcinoma, has become an important treatment modality. Because of limitation of surgery, RFA has become standard therapy for hepatocellular carcinoma in some situations. But there are some complications of RFA such as bleeding, infection, hematoma, adjacent organ thermal damage including intestinal perforation, needle track seeding, and so on. There are few reports in the literature that systematically evaluate the incidence of needle tract seeding and its associated risk factors. And only 2 cases of needle tract seeding of hepatocellular carcinoma after RFA were reported in Korea. We report a case of needle tract seeding of hepatocellular carcinoma after RFA.

바터 팽대부에 생긴 유암종 1예

강명주,지삼룡,박석주,이재익,조영완,김준영,박성재,박은택,이연재,이상혁,설상영,배상균 인제대학교 2006 仁濟醫學 Vol.27 No.-

Carcinoid tumors have been reported in a wide range of organs but most commonly involve the lungs, bronchi and gastrointestinal tract. Within the gastrointestinal tract, appendix is the most common location for carcinoid, followed by the distal small intestine, the rectum, and the stomach. Among these, primary involvement of the ampulla of Vater is extremely rare. We report a case of carcinoid tumor of ampulla of Vater. A 62-year-old man presented with epigastric soreness. Gastroduodenal endoscopy showed hyperemic bulging mass on ampulla of Vater and diagnosed as carcinoid tumor by histologic finding, with immunohistochemical study. In ^(111)In-octreoscan, tumor had regional lymph node metastasis, but no evidence of distant metastasis. Pancreatoduodenectomy with lymph node dissection was performed.

배양조건이 'Campbell Early' 포도의 기내 및 기외 생장에 미치는 영향

박재혁,손인창,김선규 충북대학교 한국과학재단 지정 첨단원예기술개발 연구센터 2002 연구보고서 Vol.6 No.-

배지내 당농도와 PPF 및 배양조건이 포도 Campbell Early의 기내생장과 순화 및 배지와 수분조건이 기외 생장에 미치는 영향을 조사하였다. 포도의 기내배양시 배지 내 당농도를 30gL^-1로 하였을 때 신초의 길이와 엽면적이 증가하였고, 15gL^-1와 0gL^-1에서는 신초의 건물중에는 차이가 없었지만, 지하부의 생체중과 건물중은 감소하였다. PPF 100∼200㎛olm^-2s^-1에서 신초의 신장과 지상부의 생체중 및 건물중이 증가하였으며, 뿌리의 생체중과 건물중이 증가하는 경향이었으나 유의성은 없었다. 기내에서 생육한 포도 식물체를 vermiculite, peatmoss, 그리고 perlite+ peatmoss (6:4)로 혼용한 배지에 이식했을 때, 순화 초기에는 신초와 뿌리의 발달이 peatmoss, perlite+ peatmoss 배지에서 증가하였으나, 순화 후기로 갈수록 peatmoss에 심겨진 식물체가 vermiculite와 perlite+ peatmoss(6:4)로 혼용한 배지의 식물체보다 지상부와 지하부의 생육이 저조하였다. perlite+ peatmoss 혼용배지의 식물체는 신초의 길이, 생체중, 그리고 엽수가 가장 많이 증가하였다. Photomixotrophic 조건이 Photomixotrophic이나 heterotrophic에 비해 유묘의 생장, 생체중, 건물중이 높았고, 지하부는 photoautotrophic에 비해 당을 포함한(3%) 처리구에서 생육이 좋았다. Photomixotrophic, photoautotrophic의 처리구에서 엽록소 a, b, a+b의 함량, 생존율, 그리고 생체중과 건물중이 증가하였다. 식물체의 이식 후 생육은 Photomixotrophic 생장한 식물체가 photoautotrophic과 heterotrophic 처리에서 생장한 식물체에 비해 좋았다. 순화 기간 내 식물체의 CO_2 uptake, 기공전도도, 증산율과 Fv/Fm는 증가하였다. Photomixotrophic와 photoautotrophic 처리구에서 생장한 식물체의 잎의 sucrose와 starch 함량이 순화 후 15일까지 증가하였고, 그 후 급격한 증가는 보이지 않고, 소폭으로 감소하거나 증가하였다. 순화를 거친 포도 식물체를 상토, 모래+상토의 배양토에 정식했을 때, FV/Fm은 건조 스트레스를 받는 식물체에서 재관수를 하기까지 일정하게 감소한 반면에 수분공급이 잘 된 처리구에서 Fv/Fm값은 일정하게 유지되었다. 상대수분함량(RWC)은 건조스트레스를 받은 잎에서 감소하였고 재관수 후 약간 회복되었다. 기공의 크기와 수는 건조스트레스를 받은 식물체의 잎이 그렇지 않는 처리에 비해 감소하였고 기공도 닫혀 있었으며, 재관수 실시 후 기공의 수와 크기가 증가하였다. 배지의 함수량은 일반 상토에 비해 상토에 모래를 혼합한 토양이 높았으며, 건조 스트레스를 가했을 경우 모래를 혼합한 상토의 식물체가 잎의 상대수분함량이 높게 나타내었다. Effect of sucrose concentration, PPF, and phototrophic condition on in vitro growth of 'Campbell Early' grape, and the response of in vitro-grown plantlets to various media and water stress was investigated. Shoot growth and leaf area increased in media supplemented with 30gL^-1 sucrose, while fresh and dry weight of root decreased in media with 0 or 15gL^-1 sucrose. Shoot dry weight was not affected by sucrose concentration. PPF of 100 to 200㎛olm^-2s^-1 increased the shoot length and shoot fresh and dry weight, while root fresh and dry weight tended to increase without significant difference. When in vitro-grown plantlets were transplanted to various media, peatmoss and perlite+peatmoss favored the growth early stage of acclimation (to 12days after transplanting), but the growth of plants planted on vermiculite and perlite+peatmoss surpassed that of peatmoss in later stage of acclimation(from 13 to 30 days after transplanting). The highest shoot growth and plant fresh weight, and leaf number were achieved with perlite+peatmoss medium. Plant growth and plant fresh and dry weight were better in photomixotrophic condition than photoautotrophic or heterotrophic condition, while root growth was favored with heterotrophic or photomixotrophic condition. CO_2enrichment increased the chlorophyⅡ content (a, b, a+b), survival rate, and fresh and Dry weight. Ex vitro growth of photomixotrophically grown plantlets was much better than grown under photoautotrophic or heterotrophic condition. CO_2 uptake, stomatal conductance, transpiration rate, and maximum photochemical efficiency(Fv/Fm) of plants grown under photomixotrophic or photoautotrophic condition were increased during acclimation. Leaf sucrose and starch content of plants grown under photomixotrophic or photoautotrophic condition showed a gradual increase till 15 days of acclimation, then slightly fluctuated with the new leafing. When grape plantlets were planted on new soil after acclimation, the Fv/Fm ratio of water stressed-plantlets showed a gradual decrease till rewatering, while that of well-watered plantlets was constant. Relative water content(RWC) was decreased in water stressed plantlets, and was slowly recovered by rewatering. The size and number of stomata were decreased, and the stomata were closed in water stressed plantlets, and the size and number of stomata were recovered slowly with rewatering. Water content was higher in commercial soil mix+sand than commercial soil mix alone, and leaf RWC was also high in commercial soil mix+sand when water stressed.

Transthyretin의 Glutathione 자동산화 촉진작용

박종근,정신,김재휴,김수한,강삼석,이제혁,안봉환 대한신경외과학회 1994 Journal of Korean neurosurgical society Vol.23 No.8

When reduced glutathione(GSH) was incubated at neutral pH and at 37°, its concentration decreased slowly with formation of oxidized glutathione(GSSG). Autooxidation of GSH was accelerated by Cu^(2+) and Hg^(2+), but not by other common mono-, di-, and tri-valent cations. Transthyretin was found to stimulate autooxidation of GSH in the presence or absence of Cu^(2+) and Hg^(2+). EDTA inhibited perfectly the autooxidation of GSH regardless of the presence of transthyretin. The stimulating activity of transthyretin was maximal at pH 7.0, declining progressively with increase or decrease of pH from 7.0. Sulfhydryl-blocking agents such as p-hydroxymercuribenzoic acid and Nethylmaleimide markedly inhibited the stimulating activity of transthyretin. Transthyretin stimulated autooxidation of other sulfhydryl compounds such as clithiothreitol and cysteine. However, it did not show a significant effect on autooxidation of sulfhydryl group of egg albumin and eye lens proteins. And transthyretin did not cause any oxidative change to thyroxine(T₄), 3, 5, 3Ltri iodo thyronine(T₃) and 3, 3: 5~triiodothpnine(rT₃) bound to it in the presence of GSH and Cu^(2+). The above results suggest that transthyretin may play a role in regulation of oxidized status of sulfhydryl groups in blood plasma and cerebrospinal fluid

치성낭종으로부터 유래된 편평상피세포암종 : Report of a Case & Review of Literatures

권혁진,현재훈,박형국,김용각 大韓顎顔面成形再建外科學會 1997 Maxillofacial Plastic Reconstructive Surgery Vol.19 No.2

Odontogenic cysts are relatively common pathologic lesions found in the oral and perioral structures, but the case of squamous cell carcinoma arising from those cysts are very uncommon. After first reported of that case in 1889 by Herman, Schwimmer collected 56 cases of previously reported squamous cell carcinoma arising in residual odontogenic cyst during about past one century. More than 60% of cases of carcinoma developing in odontogenic cysts arising in inflammatory periapical or residual cyst, and these tumors are usually well-differentiated with relatively good prognosis, and often are diagnosed as benign lesion in radiographic or clinical examination, therefore definitive diagnosis must be made by histologic examintation. We report a case and review the literatures, in our case, 78-year old woman were clinically and radiographically diagnosed as residual odontogenic cyst. But in histologic examination after enucleation of lesion, mass of squamous cell carinoma were observed, but in other area, typical cyst wall and lining epithelium were observed. And in some area, carcinoma in situ and invading squamous cell carcinoma into the lining epithlium were also observed.

자질구조와 단일화 규칙을 이용한 한국어 구문 및 의미분석기

崔宰赫,朴相圭,金權洋 新羅大學校 1991 論文集 Vol.31 No.1

This paper describes an analyzer for Korean which is partially free word order language. The analyzer uses unordered set as a subcategorization feature in order to solve the free order problems. The analyzer consists of morphological analysis, semantic analysis, semantic structure construction, lexicon and chart modules. The knowledge representation for syntactic and semantic features and unification rule was described.

검지기 데이터를 활용한 연속교통류 특성분석

임재혁,박은미 목원대학교 건축도시연구센터 2003 建築·都市環境硏究 Vol.11 No.-

Since urban Freeway, plays a major function in the city's roadway network, comprehensive and analysis should be performed with volume, speed, occupancy data of the freeway. Row of traffic variables are collected in real-time from the detectors of the recently implemented ITS. And average speed or travel time are produced based on the data. However, there are many things to be desired in interpreting the data. In this context, this research aimed to adopt various methods for analising the detector data, to find out dynamic traffic flow characteristics, such as congestion occurrence point, congestion processing, shock-wave effect of upstream as well as macroscopic u-q-k relationships. It is expected that various analysis methods of detector data presented in this thesis should help the freeway traffic management center produce the more effective control strategies. Productions of the control strategies with the proposed analysis results remains further study.

다가야스병에 의한 돌연사 부검 1예

이재혁,조승제,박종태 大韓法醫學會 1994 대한법의학회지 Vol.18 No.1

A 22-year old male patient was admitted to the Emergency room of local clinic because of the stuporous mental status. On physical examination, he appeared as a chronically ill, slender man. There was complete absence of the left arm pulse, and a prominent thrill and briuts were present over the right subclavicular area. The blood pressure which checked in the other regions except for the left arm was hypertensive(right arm 180/100, right leg 210/120, and left leg 200/130mmHg). An x-ray film of the chest and doppler ultrasounds showed characteristic dilatation of aortic arch, ascending aorta and innominate artery. The clinical impression was Takayasu's disease. This patients's condition deteriorated rapidly in spite of intensive care and died on the seventh hospital day. At autopsy, the cause of death was massive left brain infarction due to middle cerebral artery embolization. The opened luminal surface of the aorta and its major branches revealed irregulary thick-walled, tree-bark-like appearance. Also in the left common carotid artery, the lumen was nearly obliterated by thromi and intimal fibrous plaques. But the thoraco-abdominal aorta was spared. Microscopic examination disclosed granulomatous and sclerosing arteritis. In the former, the inflammatory process was confined to the media and adventitia and the cell infiltrate consisted predominantly of lymphocytes, plasma cells and histiocytes, with a varying number of giant cells. The latter was characterized bland intimal fibrous hyperplasia, medial degeneration with disrupted elastic lamella, and adventitial fibrosis. The pathologic diagnosis was Takayasu's disease of type I.

Coevaporation에 의한 cd₁-xZn_(x)S 박막 제작 및 특성에 관한 연구

李載亨,李虎烈,朴鏞冠,申成浩,申載爀,朴光子 성균관대학교 1998 학술회의지원논문목록집 Vol.1998 No.-

In this paper, structural optical and electrical properties of Cd_(1-x)Zn_(x)S thin films prepared by coevaporation method were studied. Also, effects of ZnS mole ratio(x) to CdS on properties of thin film Cd_(1-x)Zn_(x)S/CdTe solar cells were investigated. When the ZnS mole ratio was less than 0.85, the crystal structure of Cd_(1-x)Zn_(x)S films was hexagonal with the c axis aligned perpendicular to the substrate. For x>0.85, however, the Cd_(1-x)Zn_(x)S films were grown with cubic zincblende structire. As the ZnS mole ratio increased the lattice constant of Cd_(1-x)Zn_(x)S films rapidly increased with ZnS mole ratio. The open circuit voltage of Cd₁xZnxS/CdTe solar cells increased with x due to reducing of the electron affinity difference between Cd₁xZnxS and CdTe films. However, the increase of series resistance due to the high resistivity of Cd_(1-x)Zn_(x)S films results on reducing conversion efficiency.