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정준오 ( Jeong Jun O ),곽금연 ( Gwag Geum Yeon ),임영석 ( Im Yeong Seog ),김정룡 ( Kim Jeong Lyong ),이효석 ( Lee Hyo Seog ) 대한소화기학회 2003 대한소화기학회지 Vol.42 No.2
Background/Aims: Hepatic stellate cells (HSCs) in the hepatocellular carcinoma are responsible for tumor encapsulation as a host defense mechanism. Recently, it was suggested that HSCs might play an important role in hepatic angiogenesis. Thus, HSCs in the HCC may be involved in tumor angiogenesis and pathogenesis of hepatic carcinogenesis. The purpose of this study was to examine the involvement of activated HSCs in the angiogenesis of hepatoma. Methods: We investigated the effect of human HSC conditioned medium (CM) on the endothelial cell proliferation with or without stimulation of HepG2 CM, using [3H] thymidine incorporation assay. Additionally, we investigated the effect of HepG2 CM on HSCs proliferation and messenger RNA (mRNA) expression of various pro-angiogenic factors such as interleukin 8 (IL-8), basic fibroblast growth factor (bFGF), and vascular endothelial growth factor (VEGF) in HSCs. Results: HSC CM caused a significant increase in DNA synthesis in human umbilical vein endothelial cells (HUVEC). The endothelial proliferation effect of HSCs was augmented by HepG2 CM. HepG2 CM significantly increased HSCs proliferation and stimulated IL-8 and bFGF mRNA expression in HSCs. Conclusions: HSCs promote endothelial proliferation through various soluble factors. The soluble factors secreted in HepG2 stimulate HSC proliferation and up-regulate mRNA expression of proangiogenic factors. This result suggests that HSCs may play an important role in the angiogenesis of hepatoma. (Korean J Gastroenterol 2003;42:142-148)
이임기,정준오,박찬운,Lee, Im-Gi,Jeong, Jun-Oh,Park, Charn-Woon 대한치과보철학회 2002 대한치과보철학회지 Vol.40 No.2
This study is going to compare the degree of color change which occurs in the following two cases of the factors which cause the color change of extra-staining, one is during glazing by the dental technician, the other is tooth brush abrasion which makes the biggest influence on color change. To compare the degree of color change before and after glazing, a sample was made with vintage incisal porcelain No. 59 OPAL(Shofu Inc, Japan), after that it was painted with three colors of porcelain stainers, then the degree of color was measured with a spectrophometer(Model Chromaview 300, Spectoron Tech Co. Korea) after it had been treated with firing only and glazing after firing 40,000-cycle and 80,000-cycle of tooth brush abrasion test were carried out in order to simulate the brushing effect of 4 years and 8 years by using the abrasion tester. The colors were measured before the test, and after the 40,000-cycle and 80.000-cycle operations and the surfaces were examined by SEM. The results of this study were as follows ; 1. The color change before and after glazing was not great enough to have a clinical significance but the orange color was changed more significantly statistically than the blue and light brown(p<0.05). 2. In the case of the color change of stained porcelain by tooth brushing, carrying out staining and glazing with two-times firings resulted in statically less color change than one firing only(p<0.05). 3. In the case of the difference in the stainer's color, the orange color which has higher chroma was statically more sensitive than the blue color(p<0.05) 4. In the case of the color change after the 80,000-cycle abrasion, all showed color change when there was one firing and the orange stainer showed some color change with clinical significance when firings were done two times.
급성 악화를 보였던 만성 B형 간염 환자에서의 임상 경과
장은정 ( Eun Jeong Jang ),정준오 ( Jun Oh Jung ),김경아 ( Kyung A Kim ),임영석 ( Young Seok Lim ),김윤준 ( Yoon Jun Kim ),윤정환 ( Jung Hwan Yoon ),이효석 ( Hyo Suk Lee ),김정룡 ( Chung Yong Kim ) 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
<목적> 만성 B형 간염환자의 자연경과 도중 환자들은 갑작스러운 간기능의 심한 악화를 경험하게되고 심한 경우는 비대상성 간경변증에서 보일 수 있는 합병증들이 동반된 간 부전의 상태가 되게 된다. 최근 그런 상황에서 일부 선택된 환자에서 항 바이러스제를 사용하면서 간 이식을 기다리는 동안에 간 이식이 필요 없게 된 환자들의 증례를 포함한 좋은 경과를 보여주는 논문들이 발표되고 있다. 그러나 이들 논문들은 환자군의 특성상 정확한 대조군을 두기 어려운 점으로
벤조디아제핀 복용 중 발생한 저나트륨혈증에 의한 횡문근융해증 1예
정재혁 ( Jae Hyeok Jeong ),조재현 ( Jae Hyun Cho ),유창민 ( Chang Min Yu ),서승오 ( Seong O Suh ),안석진 ( Seok Jin Ahn ),정준오 ( Jun Oh Jung ),김윤권 ( Youn Kwon Kim ) 대한내과학회 2008 대한내과학회지 Vol.75 No.6
Hyponatremia is rarely reported to cause rhabdomyolysis and there has been only one case report on rhabdomyolysis due to hyponatremia, possibly complicated by benzodiazepines. We experienced a case of rhabdomyolysis due to hyponatremia during the use of benzodiazepines in a patient with an acute psychosis. A 60-year-old man was admitted to the emergency room due to altered mentality. He had been taking benzodiazepines for 1 month because of insomnia, uneasiness, and depression. His initial blood chemistry revealed severe hypotonic hyponatremia in the absence of polydipsia, edema, and features of dehydration. While correcting the hyponatremia, rhabdomyolysis developed with no evidence of trauma, seizures, or tremor. In patients with acute psychosis, the development of rhabdomyolysis due to hyponatremia or its correction should not be underestimated and should be assessed thoroughly. Clinicians also need to be aware of the potential risk of benzodiazepines for the development of rhabdomyolysis. (Korean J Med 75:718-722, 2008)
비스테로이드성 소염제의 장기 복용후 생긴 교원성 대장염 1 예
문선희(Sun Hi Moon),김찬규(Chan Gyoo Kim),정준오(Jun Oh Jung),김유선(You Sun Kim),황진혁(Jin Hyok Hwang),김선미(Seon Mie Kim),김병관(Byeong Gwan Kim),박동영(Dong Young Park),정운태(Woon Tae Jeong),이동호(Dong Ho Lee),정현채(Hyun Chae 대한내과학회 1997 대한내과학회지 Vol.53 No.4
Collagenous colitis is characterized clinically by chronic watery diarrhea and pathologically by increased subepithelial collagen deposition associated with an inflammatory infiltrate in the lamina propria. Its etiology is still unclear, although a variety of associated diseases such as rheumatic syndromes, scleroderma, and thyroid diseases have been reported. We report a case of collagenous colitis following the prolonged use of NSAIDs. A 72-year-old woman who has taken NSAIDs for many years due to some dermatologic problems was admitted to the hospital because of chronic watery diarrhea and colicky abdominal pain of 3 months duration. There was no abnormal physical finding except cachectic appearance due to weight loss of 10㎏ during 3 months. Stool examination for ova and parasites and fat was negative, and stool culture for bacterial pathogens was negative. In complete blood count, there were relative eosinophila and mild anemia. Total serum protein and albumin was low, and thyroid function, RA factor, FANA were all normal. Results of upper and lower gastrointestinal contrast radiographs were normal. Sigmoidoscopy revealed normal colonic mucosa but she had a thick subepithelial collagenous deposit and chronic inflammation in lamina propria on colonic biopsy. Based on the above findings, she was diagnosed as collagenous colitis. Diarrhea improved after withdrawing NSAIDs and the treatment with oral prednisolone. In the post-treatment biopsy, the thickness of the collagen hand was diminished. Collagenous colitis is now recognized as one of the common causes of chronic diarrhea of obscure origin and NSAIDs may play an etiological role in some patient with collagenous colitis.
횡문근융해증으로 인한 급성신부전증의 핍뇨기에서 발생한 중증 고칼슘혈증
임수진 ( Im Su Jin ),이승희 ( Lee Seung Hui ),문창기 ( Mun Chang Gi ),정준오 ( Jeong Jun O ),박상준 ( Park Sang Jun ),김윤권 ( Kim Yun Gwon ),김소연 ( Kim So Yeon ),김영중 ( Kim Yeong Jung ),조민구 ( Jo Min Gu ),이권전 ( Lee Gwon 대한신장학회 2003 Kidney Research and Clinical Practice Vol.22 No.6
Hypercalcemia rarely develops in patients with acute renal failure associated with rhabdomyolysis. If hypercalcemia occurs, it happens mostly in diuretic phase and rarely in oliguric phase. Secondary hyperparathyroidism, abnormal metabolism of Vitamin D, immobilization of patient, and release of calcium from injured muscle are considered as possible pathogenetic mechanisms of hypercalcemia in acute renal failure associated with rhabdomyolysis. Among them, dissoultion of calcium from injured muscle into extracellular fluid is accepted as the major mechanism of pathogenesis of hypercalcemia. A twenty year old male patient, combat policeman, developed syncope in the course of regular physical training. He was diagnosed of acute renal failure associated with rhabdomyolysis at the hospital he initially visited. After being subjected to three sessions of acute hemodialysis, he was transferred to our hospital. During the treatment, laboratory test was performed upon his continuous complaints of lower extremity weakness. It showed severe hypercalcemia with plasma calcium level of 17.3 mg/dL. He was in oliguric phase at the time of this severe hypercalcemia. Patient`s lower extremity weakness was gradually improved by hemodialysis using low calcium dialysate. He was discharged after his renal function became normal. He has been followed on regular basis. (Korean J Nephrol 2003;22(6):731-735)
교통경찰과 비 교통경찰의 폐기능과 혈중 Carboxyhemoglobin 수치에 대한 비교연구
김성민 ( Kim Seong Min ),전규락 ( Jeon Gyu Lag ),김영욱 ( Kim Yeong Ug ),김준형 ( Kim Jun Hyeong ),이호학 ( Lee Ho Hag ),홍순창 ( Hong Sun Chang ),이승희 ( Lee Seung Hui ),박상준 ( Park Sang Jun ),정준오 ( Jeong Jun O ),김윤권 ( K 대한결핵 및 호흡기학회 2003 Tuberculosis and Respiratory Diseases Vol.55 No.6
전투경찰에서 발생한 폐렴에 있어서 Macrolide와 2세대 Cephalosporin의 치료 효과에 대한 전향적 비교 연구
이재일 ( Jae Il Lee ),양병윤 ( Byeong Yoon Yang ),문창기 ( Chang Gi Moon ),정재혁 ( Jae Hyeok Jeong ),김종수 ( Jong Su Kim ),이정민 ( Jung Min Lee ),안석진 ( Seok Jin Ahn ),정준오 ( Jun Oh Jung ),박상준 ( Sang Joon Park ),김윤권 ( 대한결핵 및 호흡기학회 2005 Tuberculosis and Respiratory Diseases Vol.58 No.3
목적 : 집단생활을 하는 젊은 성인에서 발생한 폐렴에 관한 연구는 매우 드물며, 국내 연구는 전무한 실정이다. 이에 저자들은 전경 대원에서 발생한 폐렴의 양상에 대해 알아보고 Macrolide와 2세대 Cephalosporin의 치료 효과를 비교하여 보고자 전향적 연구를 시행하였다. 방법 : 2003년 1월부터 2004년 4월까지 국립 경찰병원을 방문한 52명의 폐렴 환자들을 무작위로 구분하여 Cefuroxime 또는 Azithromycin을 경구 투여 Background : The study of pneumonia among young men living in a group is rare. prospective study was conducted to determine the etiology, and compare the effects of macrolide and second-generation cephalosporin on the treatment of pneumonia among combat p