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나국영(Kuk Young Na),김용호(Yong Ho Kim),김윤화(Youn Wha Kim),홍성화(Sung Wha Hong) 대한외과학회 2008 Annals of Surgical Treatment and Research(ASRT) Vol.75 No.2
Purpose: Gallbladder carcinoma is the most common malignancy of the biliary tract in Koreans. However the exact histopathological characteristics and its carcinogenesis are not well understood. Fascin is an actin bundling protein, and it induces membrane protrusions and increased cell motility in various transformed cells. The expression of fascin is known to be greatly increased in various human neoplasms, but its expression in gallbladder carcinoma is unknown. Methods: A total 110 cases of gallbladder carcinoma, six cases of carcinoma in situ and 10 cases of chronic cholecystitis were immunohistochemically studied to evaluate the expression of fascin in the light of its relationship with various prognostic factors. Results: Seventy eight gallbladder carcinomas (70.9%) showed positive staining for fascin, but none of the chronic cholecystitis and carcinoma in situ was positive. Fascin was strongly stained in the cytoplasm of the cancer cells. The adjacent normal mucosa was negative for fascin staining. There was a significant correlation between lymph node metastasis (P=0.039) and the presence of residual tumor (P=0.016) but there was no significant correlation between age, gender, tumor invasion, histologic difference, neural invasion, lymphatic invasion, stage and recurrence. The 5-year overall survival rate of the fascin positive and negative groups were 48.5% and 53.8%, respectively (P=0.236). On the multivariate analysis, a fascin expression was not significant. Conclusion: Our results suggest that a fascin expression is strongly associated with neoplastic progression in gallbladder carcinomas and fascin positive gallbladder carcinomas show more aggressive behavior.
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홍성현,배종수,임창동,나영상,송명엽,Hong, Seong-Hyeon,Bae, Jong-Soo,Yim, Chang-Dong,Na, Young-Sang,Song, Myoung-Youp 한국수소및신에너지학회 2006 한국수소 및 신에너지학회논문집 Vol.17 No.2
The eutectic Mg-23.5%Ni alloy was casted by melting and solidification. The powders of Mg-23.5%Ni and (Mg-23.5%Ni)-10% iron oxide were prepared by mechanical grinding of casted Mg-Ni alloy and casted Mg-Ni alloy+oxide, respectively. As milling time increases, hydriding and dehydriding rates of Mg-Ni and Mg-Ni-oxide alloy powders increase. The additions of iron oxide to Mg-Ni alloy and Mg-Ni-oxide increase hydriding rates and slightly decrease dehydriding rates.
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홍성현,배종수,나영상,송명엽,임창동 한국수소및신에너지학회 2006 한국수소 및 신에너지학회논문집 Vol.17 No.3
The eutectic Mg-23.5%Ni alloy was casted by melting and solidification. The powders of Mg-23.5%Ni and (Mg-23.5%Ni)-10% iron oxide were prepared by mechanical grinding of casted Mg-Ni alloy and casted Mg-Ni alloy+oxide, respectively. As milling time increases, hydriding and dehydriding rates of Mg-Ni and Mg-Ni-oxide alloy powders increase. The additions of iron oxide to Mg-Ni alloy and Mg-Ni-oxide increase hydriding rates and slightly decrease dehydriding rates.
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내시경적 용종절제술로 진단된 Gastritis Cystica Profunda 2예
나일환,조용기,차재문,김경환,황윤이,이동현,하홍성,이재승,김상현,송철수 대한소화기내시경학회 2003 Clinical Endoscopy Vol.26 No.3
Gastritis cystica profunda (GCP) is a rare disease in which mature glandular epithelium extends into the muscularis mucosae or below. Mainly GCP lesions developed at gastroenterostomy stomas. We experienced two cases of GCP which were not related with any gastric surgery. The first case was 76-year-old woman who visited for epigastic pain and dyspepsia. The second case was 55-year-old woman complaining right upper quadrant pain. The polyps are found on the greater curvature of the antrum at first case, and on the lesser curvature of the antrum at second case. Each polyp was successfully removed by polypectomy. (Korean J Gastrointest Endosc 2003;26:150-153) 심재성 낭종성 위염은 성숙된 선상피가 점막하층까지 침윤하여 다수의 낭종을 형성하는 비교적 드문 질환으로, 대부분 위절제술을 시행받은 후에 발생한다고 보고되었다. 최근 저자 등은 위절제술의 과거력이 없는 환자들에서 상부위장관 내시경 검사에서 용종을 발견하여 내시경적 용종절제술을 통해 심재성 낭종성 위염으로 진단된 2예를 경험하여 보고한다.
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홍성구,안치경,김현정,오기철,박선영,나수미,이훈복 한국습지학회 2017 한국습지학회지 Vol.19 No.1
본 연구의 목적은 맹꽁이의 현 서식지의 생태적 특성을 분석하기 위해 맹꽁이를 포획하고, 맹꽁이 개체군을 보존하기 위한 것이다. 본 연구는 부산광역시 강서구 명지동 일원에 서식하는 맹꽁이를 2013년 8월 2일부터 2013년 11월 7일까지 포획하였고, 함정 트랩 240개(30 cm height X 20 cm width)를 주요 식생을 위주로 7가지의 맹꽁이 주요 서식지로 구분하고 설치하여 맹꽁이를 포획하였으며, 서식지별 환경 특성 요소들(토양 구성요소, 토양 습도, 대기 습도, 토양온도)을 측정하였다. 맹꽁이의 서식지는 대부분 초지와 아까시나무가 자생하는 평지 초원이었으며, 곳곳에 습지를 포함하고 있는 환경이었다. 맹꽁이는 846개체를 포획하였으며 VIE-tag을 몸에 투입시켜 다시 새로운 서식지에 방사하였다. 맹꽁이 개체 군은 물억새군락에서 가장 많은 포획율을 나타냈으며, 나지에서 가장 낮은 포획율이 나타났는데, 이는 한낮의 뜨거운 햇빛으로부터 보호받지 못하며, 또한 천적으로부터 은폐하기에 부적합한 환경이기 때문이다. 포획한 맹꽁이 중 127개체의 성별을 암컷 76개체, 수컷 51개체로 나타났고, 전장 및 무게를 측정한 결과 평균 길이는 암컷 45.2±0.32(mm), 수컷 41.8±0.26(mm)으로 측정되었다. 또한 무게를 측정한 결과, 암컷 13.2±0.17(g), 수컷 11.1±0.13(g)으로 측정되었다. 본 연구를 통하여 맹꽁이의 활동에 가장 큰 영향은 주는 기상 요건은 온도인 것으로 나타났고, 본 연구 결과 15.6℃ 이하의 온도에서는 활동성이 현저히 낮은 것으로 나타났으며, 그 보다 더 온도가 낮아질 경우 동면에 들어가는 것으로 확인되었다. 본 연구를 통하여 명지지구 개발로 인하여 서식지 파괴 및 개체군의 절멸의 위험에 있던 명지지구에 일원에 서식하는 맹꽁이 개체군의 생존연속성을 지속시킬 수 있으며, 나아가 서식지 분석을 통하여 추후 명지지구 내에 생태공원 조성시 맹꽁이가 선호하는 서식환경의 기초자료로 활용 가능할 것으로 예상된다. The purpose of this study is to analyze the current original habitat and to conserve the narrow-mouthed toad populations. For this study, we used 240 pitfall traps (30 cm height X 20 cm width) to catch the narrow-mouthed toads that inhabit in Myeongji-dong, Gangseo-gu, in Busan metropolitan city from August 2, 2013 to November 7, 2013. We measured the environmental characteristics (soil composition factors, soil moisture, Humidity, soil temperature) for the seven habitat patterns of narrow-mouthed toads based on vegetation types. Main habitats of narrow mouthed toads were flat grassland where grass and false acacia grew and there was wetland all over the place. When analyzing habitats that main habitats of narrow-mouthed toads prefer after selecting representative seven vegetation, it was found that the most narrow-mouthed toads were caught in amur silver grass colony while the least narrow-mouthed toads were caught in bare land. Totally, we caught 846 narrow-mouthed toads over 68 times, and released them into the newly constructed habitat after injection VIE-tag. It seems that the reason for which the least narrow mouthed toads were caught in bare land is that bare land is not suitable for narrow mouthed toads to protect themselves from strong sunlight and to hide themselves from natural enemy. We found that temperature had the greatest influence on activities of narrow mouthed toads and at temperature of less than 15.6℃. We also found that the activities of narrow mouthed toads were remarkably low and then temperature was below 15.6℃. It meant that narrow mouthed toads seemed to go into hibernation. From this research, we could find the prefer habitat after analyzing habitats for the narrow-mouthed toads and could suggest for construction for the better habitat of narrow-mouthed toads.
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황윤이,조용기,차재문,김경환,나일환,이동현,하홍성,김상현,송철수 대한소화기내시경학회 2003 Clinical Endoscopy Vol.26 No.3
Although Crohn's disease is usually found in the ileum and colon, it can be located in the whole gastrointestinal tract from the oral cavity to the anus. The frequency of gastroduodenal Crohn's disease is rare and is reported to range between 0.5% and 4.0% in Crohn's disease. And when Crohn's disease does involve the upper gastrointestinal tract, there is nearly always concomitant disease in the small bowel and colon. Very rarely, isolated Crohn's disease of the stomach and duodenum may occur. Definite diagnosis requires histologic confirmation, however, endoscopic biopsies often fail to reveal granuloma. Thus, if absence of definite histologic findings, combining clinical, radiologic and endoscopic findings suggest this condition. We experienced a first case of Crohn's disease confined to stomach and reported with review of the literature. (Korean J Gastrointest Endosc 2003;26:146-149) 크론병은 구강에서 항문에 이르기까지 전 위장관에 발생할 수 있으며 드물지만 전체 환자의 0.5~4%에서는 위 또는 십이지장을 침범하는 것으로 보고된다. 위 또는 십이지장의 크론병은 다른 위장관에 크론병이 있는 환자에서 함께 관찰되는 것이 보통이며 단독으로 발생하는 경우는 매우 드물다. 진단은 적합한 조직으로 얻은 병리학적 소견으로 이루어지나 내시경적 생검의 어려움으로 임상양상, 내시경, 조직학적 소견 및 방사선학적 소견 등을 토대로 유사한 다른 질환들을 배제한 후 진단을 내릴 수 있다. 저자들은 특징적인 육아종을 관찰할 수 없었으나 임상소견, 내시경 및 방사선 소견에 근거하여 진단된 크론병 1예를 경험하여 문헌고찰과 함께 보고한다.
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