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간세포암에서 Cyclooxygenase-2와 p53의 발현의 연관성과 수술 후 재발에 미치는 영향
윤병철,한병훈,이상욱,허방 고신대학교의과대학 2007 고신대학교 의과대학 학술지 Vol.22 No.1
Background : Overexpression of COX-2 has been well documented in different malignancies has been develop in the gastrointestinal tract, breast, cervix, lung, prostate, and hepatocellular carcinoma(HCC). The p53 tumor suppressor gene has a critical role for regulation of cell cycle, cellular growth, and maintenance of genomic integrity. However, the exact correlation of COX-2 and p53 expression in HCC is still unclear. To evaluates the expression of COX-2 and p53, and their relationships to clinicopathological variables in patients with HCC and feasiblity of chemoprevention of hepatocellular carcinoma by COX-2 inhibitors was investigated. Materials and Method : Formalin-fixed, paraffin-embedded, archival surgical specimens that had been obtained from 50 patients who had received a diagnosis of primary HCC were studied. The expression of COX-2 and p53 in tissue were assessed immunohistochemically. This study analyze the correlation between COX-2 or p53 expression and various clinicopathological variables. Results : The COX-2 overexpression was not significantly associated with p53 positivity. High COX-2 expression was associated with well differentiated HCC(p=0.049). Disease free survival rate of high COX-2 expressor in nonneoplastic liver tissue are significantly lower than that of patients with low COX-2 expressor. Conclusions : This study suggest that the COX-2 may play a role in the early stage of hepatocarcinogenesis and it provide a rationale for testing whether COX-2 inhibitors can prevent development of HCC.
윤병철 대구효성가톨릭대학교 1998 연구논문집 Vol.57 No.1
Actually thc social change of today is governed by the development of information-telecommunication technology. Because of this stream we come to consider the information as the important source of ruling in today's society. Even though production of commodity is still important in capital society, the production of information goods finally come to be key factor to rearrange the power structure in society. Therefore the logic of capitalism is carried out on the context of commodity production in one hand, but the information is considered the most important means of production nowadays in the other hand. According to the change of this situation, power structure must have been changed, and rearranged in the context with whether capital and(or) information are(is)possessed or not. I suggest the traits and contents of the change of power structure briefly as followings. 1) Power could be obtained by one's position in class or group in pre-information is considered more important factor. 2) Although capitalists still have a power in even information society, but capitalists who are in the manufacturing industry or who have not huge capital will decline. Capitalists who are in the information industry will gain the powerful power. 3) The position of producer in the process of information production is different from that of laborer in the past time. He is not be subordinated to capitalist. He can enjoy his independent position or resists to capital with his creative capability to produce new information(knowledge). 4) But producers who can't connect his idea with mating a commodity or affect the process of making commodity will be excluded from the core of power. 5) The obstacles of sexuality or age are ignored in the social activities because of not limiting working place and substituting physical labor force for computer program In the information society. In general physical laborer will fa11 down more worse position in the information society 6) The role of middle manager or supervisor in organization is deprived of because the development of Information-telecommunication technology can overcome the obstacle of space in communication and it treats or controls lots of information in speed. Therefore there will be two ruling groups, such as a small number of power group (a few capitalists who possess information industry and elite group who can supervise or control an information) and many number of individuals of information producer 7) Power group also would be made around sovereignty in the information society as far as the sovereignty is exercised in the unit of nation. The power might be distributed to groups which are related to process of collecting, administenng, controlling an information because the way of ruling in information society nearly depends upon the flow of information. 8) The world market will be governed by the flow of information commodity. Therefore the world system will be divided in two groups, wealth nation having a huge capital and information and poor nation having not a full of capital and information. In stead of military influence is fading out, the affects of capital and information will penetrate in everyday life of the Third World people.
악성담도폐쇄 환자에서 경피경간 담도배액술과 금속담도배액술 치료의 장기 합병증 비교 연구
윤병철 고신대학교 의과대학 2011 고신대학교 의과대학 학술지 Vol.26 No.1
OBJECTIVES: Several advances in the diagnosis, therapy and palliation of patients affected by malignant biliary obstruction have occurred during the last decades. Unresectable malignant biliary obstruction has usually been treated by percutaneous transhepatic biliary drainage (PTBD) versus metallic biliary drainage (MBD). The optimal management of complications after biliary drainage is still an unresolved problem. To compare the complications of malignant biliary obstruction after PTBD and MBD. METHODS: We enrolled 51 patients of malignant biliary obstruction after biliary drainage. The clinical characteristics and complications of each groups were assessed and compared. RESULTS: The complications after biliary drainage of MBD are lower than those of PTBD (59.1% vs 82.8%, P = 0.06, respectively). Patients with PTBD tended to have a shorter event of complication time compared to MBD patients (2.9 months vs 7.1 months, P < 0.01). Patients with older age in PTBD tended to have a longer event of complication time compared to younger patients (4.6 months vs 2.3 months, P < 0.01). CONCLUSIONS: The method of biliary drainage in malignant biliary obstruction have statistically significant impact on the complication time. The clinical efficacy of metallic stent in patients with malignant biliary obstruction is better than that of PTBD.