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엄민식,박원우,서승철,이진호,조주연,최혜영,이찬희,임소덕 白中央醫療院 2005 仁濟醫學 Vol.26 No.1
Relapsing polychondritis is an uncommon multisystemic disease which is characterized by recurrent episodes of inflammation and progressive destruction of cartilaginous tissue. The cause of relapsing polychondritis is unclear and suspected to be autoimmune pathophysiology. It involves cartilage of nose, vertebra, trachea, peripheral joint as well as structures of eye, heart, blood vessels or inner ear. Auricular chondritis is present in almost all patients, and multiple arthritis, nasal chondritis, saddle nose, eye involvement, laryngotracheal involvement and skin manifestations are also present. We report a case of relapsing polychondritis presented a arthritis with review of literatures.
골 임파종에 대한 방사선 조사 부위에 발생한 이차성 직장암 1예
엄민식,이홍기 인제대학교 2006 仁濟醫學 Vol.27 No.-
Radiotherapy (RT) has been used for many years, as a primary or additional tool in cancer treatment, but it has also been associated with the risk of developing another cancer. Although bone and soft tissue sarcomas are the most frequent second neoplasia following RT, Rectal cancer also can be occurred after pelvic radiotherapy. In this report, we present a patient with rectal cancer, which was developed at the same site where the patient used to get the RT, due to primary bone lymphoma. A 42-years-old man was diagnosed as a malignant lymphoma on the left hip in June 1996. His clinical stage was I_(BE). He received concurrent chemoradiotherapy; Radiotherapy, which was held with the dose of 61 Gy to femoral head, acetabulum and ischial tuberosity. And Chemotherapy was CHOP(cyclophosphamide, doxorubicin, vincristine, and prednisolone). One month later, the patient was presented with hematochezia due to radiation proctitis, and the symptom was soon improved with symptomatic treatment. He received regular follow-up at outpatient basis. In April 2003, he visited our hospital for the evaluation of constipation and anal pain for 2 months. Colonoscopy showed obstructive mass lesion at 10cm apart from anal verge and the biopsy has been revealed as adenocarcinoma. The computed tomography (CT) scan of pelvis showed the circumferential wall thickening of upper rectum with blurring margin. He has received 3 cycles of neoadjuvant chemotherapy with leucovorin and 5-FU in combination and then lower anterior resection with colostomy. The pathologic stage was Ⅲb (T3N1). Additional 6 cycles of adjuvant chemotherapy were administered. He has been in remission for 9 months after operation.
김민식,엄태섭,성대동 東亞大學校 附設 基礎科學硏究所 1994 基礎科學硏究論文集 Vol.11 No.1
Diazotetracyanocyclopentadiene의 광화확적 분해반응 생성물을 저온 아르곤 및 크세논 매트릭스에서 적외선분광광도계법과 자외선-가시광선 분광광도계법으로 연구하였다. 저온 매트릭스에서 디아조화합물로부터 생성된 카르벤 중간체의 수득율은 낮았다. 디아조화합물을 광분해시켰을 때의 아레니우스 그림표는 온도변화에 직선적으로 변하지 않고 낮은 온도에서 tunneling효과를 보였다. Photolysis of diazotetracyanocyclopentadiene has been investigated by means of IR and UV-vis spectroscopy in Ar matrix. Parent carbene is produced in low yield and could be detected by UV-vis spectroscopy and IR spectroscopy. The carbene produced from the diazo compound is very photolabile and also decay thermally at temperature as low as 10K. When the diazo compound is photolyzed the Arrhenius plots show a tunneling effect that is not shown as non linearity.
Congenital Angiodysplasia in a Woman Presenting with Idiopathic Jejunal Varicosis on Angiography
( Min Sik Uhm ),( Nayoung Kim ),( Jong Chun Nah ),( Youn Mu Jung ),( Sung Bum Kang ),( Duck Woo Kim ),( Baek Hui Kim ),( Sung Gwon Kang ) 대한소화기기능성질환·운동학회 2009 Gut and Liver Vol.3 No.2
Angiography is a useful diagnostic tool in cases with massive gastrointestinal bleeding such as angiodysplasia and varicosis when endoscopy is not available. Angiodysplasia and varicosis have distinguishable characteristic features on angiography, such as the presence of a nidus, visible late-draining veins, and the typical vascular tuft. We recently treated a rare case of congenital angiodysplasia without the characteristic angiodysplasia features on angiography. Instead, the patient presented with a very rare case of idiopathic jejunal varicosis. A 42-year-old woman visited the emergency room with the chief complaint of melena for three days and a hemoglobin level of 5.9 g/dL. An abdominal CT angiogram showed varicosis at the jejunal mesentery. Angiography of the superior and inferior mesenteric arteries showed tortuous and dilated jejunal and ileal branches during the venous phase, suggesting a vascular malformation such as varicosis of the jejunum. Surgical exploration with intraoperative endoscopy revealed diffuse engorged veins and a 1.0-cm-diameter superficial ulcer covered with a blood clot that was 70 cm from the ligament of Treitz. A 100-cm segment of jejunum was resected. Histological examination revealed that the lesion was angiodysplasia, not varicosis. The final diagnosis was congenital angiodysplasia. (Gut and Liver 2009;3: 122-126)
한국인 성인형 스틸병 환자에서 Interleukin-18 유전자 다형성
허민영 ( Min Young Her ),김숙경 ( Sook Kyoung Kim ),성윤경 ( Yoon Kyoung Sung ),이혜순 ( Hye Soon Lee ),엄완식 ( Wan Sik Uhm ),김태환 ( Tae Hwan Kim ),전재범 ( Jae Bum Jun ),정원태 ( Won Tae Chung ),최정윤 ( Jung Yoon Choe ),장현 대한류마티스학회 2006 대한류마티스학회지 Vol.13 No.2
Objective: It has been suggested that overproduction of interleukin -18 (IL-18) may contribute to the pathogenesis of adult onset Still`s disease (AOSD). Recently, positive association between a polymorphism in the IL-18 gene and different diseases like diabetes, sarcoidosis and asthma has been reported. The aim of the present study was to investigate the potential association of two single-nucleotide polymorphisms (SNPs) at position -137 (G/C) and -607 (C/A) in the promoter region of the IL-18 gene with susceptibility and clinical feature of AOSD in the Korean population. Methods: We examined two SNPs of IL-18 in 70 patients with AOSD and 204 healthy control individuals. The genotyping were performed using sequence specific PCR. Haplotypes were analyzed by the estimated haplotype program. The patients with AOSD were subdivided into groups according to disease course: monocyclic systemic, polycyclic systemic, and chronic articular type. Results: As for the -607 genotypes, 13 of the 69 patients had CC genotype (18.8%), 36 the CA type (52.2%) and 20 the AA type (29.0%). AOSD patients had higher frequency of A allele at -607 when compared to controls (OR 1.48, 95% CI 1.00∼2.18, p=0.048). AOSD patients had significantly higher frequency of AA genotypes at -607 when compared to controls (AA vs CA& CC, OR 1.90, 95% CI 1.01∼3.58, p=0.044). As for the -137 genotypes, of the 68 patients, 57 had GG genotype (83.8%), 9 the GC type (13.2%) and 2 (2.9%) had the CC type. No differences were found in allele and genotype frequencies between two groups. The haplotype frequencies of the IL-18 polymorphism were not significantly different between patients with AOSD and controls. The frequency of-137 GG genotype was significantly increased in chronic articular type compared to healthy control and systemic type of AOSD. Conclusion: In IL-18 gene polymorphisms, the A allele and AA genotye at position -607 might be genetic risk factors for the development of AOSD in Korean population. Further investigation in larger groups is required to provide more conclusive evidence regarding the role of the IL-18 gene polymorphism in AOSD.
고분자 전해질 연료전지를 위한 연료주입구 설계 및 수치해석
엄승배(Uhm, Seung-Bae),나태경(Na, Tae-Kyung),김홍석(Kim, Hong-Suk),백정식(Baek, Jung-Sik),성동묵(Sung, Dong-Mug),김태민(Kim, Tae-Min) 한국신재생에너지학회 2007 한국신재생에너지학회 학술대회논문집 Vol.2007 No.06
The Performance of a PEMFC stack is strongly dependent on the uniform reactants distribution on MEA. The uniform distribution can be achieved by flow-field pattern and manifold design optimized to satisfy operating conditions. This paper investigates uniform reactants distribution in channels by changing manifold shape and inlet mass flow rate. Typical U and Z shape and modified U and Z shape manifolds with buffer zone were designed. To check the uniform reactants distribution, standard deviation of mass flow rate was compared. The numerical results show that the inlet mass flow rate, inlet shape, and manifolds shape are critical factor for uniform distribution.
김민식,엄태섭,성대동 한국식품영양학회 1994 韓國食品營養學會誌 Vol.7 No.1
Diazotetracyanocyclopentadiene의 광화학적 분해반응 생성물을 저온 아르곤 및 크세논 매트릭스에서 적외선분광광도계법과 자외선-가시광선 분광광도계법으로 연구하였다. 저온 매트릭스에서 디아조화합물로부터 생성된 카르벤 중간체의 수득율은 낮았다. 디아조화합물을 광분해시켰을 때의 아레니우스 그림표는 온도변화에 직선적으로 변하지 않고 낮은 온도에서 tunneling효과를 보였다. Photolysis of diazotetracyanocyclopentadiene has been investigated by means of IR and UV-vis spectroscopy in Ar matrix. Parent carbene is produced in low yield and could be detected by UV-vis spectroscopy and IR spectroscopy. The carbene produced from the diazo compound is very photolabile and also decay thermally at temperature as low as 10K. When the diazo compound is photolyzed the Arrhenius plots show a tunneling effect that is not shown as non linearity.