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김제연,안지영,최민규,노재형,손태성,김성,Kim, Je-Yeon,An, Ji-Yeong,Choi, Min-Gew,Noh, Jae-Hyung,Sohn, Tae-Sung,Kim, Sung 대한위암학회 2006 대한위암학회지 Vol.6 No.1
위에서 생기는 점막하 종양은 내시경적 조직검사로는 그 기원을 알기 어려운 경우가 많다. 이러한 점막하 종양 중, 슈반 세포(Schwann cell)로부터 분화하여 생기는 종양을 신경초종(Schwannoma)이라고 하며, 위에서 생기는 전체 종양의 0.2%를 차지한다고 알려져 있다. 이 증례는 2개월 전부터 시작된 다량의 흑색변과 빈혈을 주소로 내원한 57세 여자 환자에 대한 보고이다. 복부 컴퓨터 단층 촬영 및 상부 위장관 내시경에서 위 분문에서 3 cm정도 아래부터 위각 직상부까지 위체부 소만을 대부분 차지하는 약 8 cm 이상의 돌출된 종양이 관찰되었고, 수 차례에 걸친 내시경적 조직검사를 시행하였으나 괴사조직과 육아종성 조직, 만성 위염 소견만 반복해서 나왔다. 출혈을 동반한 진행성 위암, 림프종 등을 생각하여 정확한 진단 및 출혈에 대한 치료를 위해 수술을 시행하였다. 술 후 조직검사에서 전반적으로 소엽상 형태(lobulating pattern)로 주변에 림프구 침윤(lymphocyte cuffing)이 있었고 책상핵(palisading nuclei), 방추세포(spindle-cell) 등이 보였다. C-kit, CD34, SMA 모두 음성이었으며 S-100 양성으로 신경초종으로 진단되었다. The origin of a submucosal tumor is difficult to determine by endoscopic biopsy. One type of submucosal tumor, which originates in Schwann cell, a schwannoma represents 0.2% of all gastric tumors. We experienced the case of a 57-year-old female patient with a gastric schwannoma presenting with melena and anemia. Computed tomography and upper gastrointestinal endoscopy showed a protruded huge mass from 3 cm below the cardia to angle. Seven endoscopic biopsies indicated only necrotic debri and granulation tissue, chronic gastritis. Because we suspected an advanced gastric cancer, or lymphoma with bleeding, It was performed an operation for an exact diagnosis and a treatment for bleeding. A-post-operative histopathological, immunohistochemical examination led to the final diagnosis of a gastric schwannoma.
골수염 치료제인 항생제비드 ( CJ-40003 ) 유효성분의 일반약리작용
김영훈(Young Hoon Kim),최재묵(Jae Mook Choi),온윤성(Yoon Seong On),연규정(Kyu Jeong Yeon),이윤하(Youn Ha Lee),김제학(Je Hak Kim),이영수(Young Soo Lee) 한국응용약물학회 1999 Biomolecules & Therapeutics(구 응용약물학회지) Vol.7 No.1
A new antibiotic bead, CJ-40003 is a combination of three antibiotics, tobramycin, vancomycin and cefazolin embedded in bone cement, for the treatment of osteomyelitis. To evaluate the general pharmacological properties of CJ-40003, the effects of its active ingredients were investigated in mice, rats, dogs and isolated guinea pig ileum. The combination of three antibiotics (CA) did not affect general behavior, central nervous system, smooth muscles, gastrointestinal system, cardiovascular and respiratory system and water and electrolytes excretion when administered intravenously at the doses of 0.3, 1 and 3 mg/kg, respectively, into experimental animals. The CA had no effect on the contractile response of the isolated guinea pig ileum to various spasmogen at concentrations of 1, 3 and 10 ㎍/ml, respectively. In conclusion, the active ingredients of CJ-40003 showed no pharmacological effect in these studies.
한화택(Hwataik Han),김제연(Je-Yeon Kim),이원구(Won-Gu Lee) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.6
It is intended to develop an experimental apparatus which can visualize flow patterns around cylindrical objects with various cross sections. The test objects are immersed in a fluid and traversed on a traversing system while the fluid remains stationary in a tank. Since there is no piping system to circulate the fluid, the apparatus is simple and does not require pumping power. Aluminum powders on fluid surface help to obtain clear flow images. A smart phone camera mounted on the traversing system can capture images and movies with a relative reference frame, and send the real-time data to computers through wireless communication. Karman vortex streets can be observed by varying traversing speed for various cross-sectional objects, and Strouhal number is obtained as a function of Reynolds number. Through the capstone design course, students can learn about a traversing system, fluid visualization techniques, design procedure and fluid theories around an object.