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후두 및 하인두 암종에서 p53단백 발현과 Espstein-Barr Virus 검출
최영환,도남용,나한조,이도용,노용훈,김완수,최종선 조선대학교 2001 The Medical Journal of Chosun University Vol.26 No.2
Background and Objectives : When p53 cancer suppressor gene, occurs gene deletion or point mutation, malignancy develops by loss of p53 function with abnormal p53 protein. The Epstein-Barr virus (EBV) is the causative agent of certain type of lymphoma and undifferentiated nasopharyngeal carcinoma. However, the role of EBV as a causative factor in other head &eck tumors is not fully elucidated except nasopharyngeal carcinoma. This study, the author examined that p53 expression and detection rate of EBV correlate to development of laryngeal and hypopharyngeal squamous cell carcinoma(SCC) and play the possible role of prognostic indicators. Materials and Methods : Formalin-fixed, paraffin-embedded tissue specimen from 32 cases of larynx and hypopharyngeal squamous cell carcinomas were studied by immunohistochemical staining for p53 and EBV. The results of analysis were compared with clinicopathological parameters. Results : p53 expression was 56.3% (18 cases) and the detection rate of EBV was 43.6% (14 cases) of 32 cases in laryngeal and hypopharyngeal squamous cell carcinomas. p53 expression was correlate with histologic grade (p<05) only. Detection of EBV was not correlate with clinicopathological parmeters. Conclusion : These results suggest p53 expression and the detection of EBV may be related with development of laryngeal and hypopharyngeal squamous cell carcinoma. And, the expression of p53 protein can be used as a prognosticator in laryngeal and hypopharyngeal squamous cell carcinoma under certain limitation.
金煥起,梁奉龍,李正元 全北大學校 附設 都市및環境硏究所 1990 都市 및 環境硏究 Vol.5 No.-
This paper was the study on the change of the water quality an water quality management of reservior when Yong-dam dam constructed. The results obtained are as follows, water quality of river in surroundings area was BOD 1-2 ㎎/ℓ, TKN 1 ㎎/ℓ, T-P 0.03-0.013 ㎎/ℓ. Results from calculatin of the pollution loading of conteminations according to environmental factor, water quality was calculated to BOD 0.87 ㎎/ℓ, T-N 0.07 ㎎/ℓ. Because of increased of inlet nutrient, nutrient conditions in Yong-dam reservior will generated to eutrophication. Therefore, methods for control and management nutrition conditions are must be intercept and control to inflow of nutrient that included to water and wastewater.
이담자균 효모의 성분화 과정중 인지질의 작용과 배지조성의 제한이 성분화에 미치는 영향
정영기,강원대,남수완 동의대학교 기초과학연구소 1997 基礎科學硏究論文集 Vol.7 No.1
The action of phospholipid on the rhodotorucine A(Rh.A) acceptance by heterobasidiomyceteous yeast Rhodospori-dium toruloides mating type a cells and the effect of medium composition during sexual differentiation were investigated. Activation of trigger peptidase(TPase) was very sensitive to the originated phospholipid from R. toruloides and was more sensitive to phospholipid liposome made up of phospholipid. Phospholipid present on the membrane of mating type a cells consists of phospatidylglycerol(PG), phosphatidylethanolamine(PE), phospatidylcholine(PC), phospatidylinositol(PI), and phosphatidylserine(PS) of 12.9, suprisingly 45.4, 11.0, and 13.9%, respectively. As the result of using C-1 and N-1 mediums which limited C and N sources capable of inhibiting the synthesis of phospholipid. it resulted inhibiting sexual differentiation and production of Rh.A from mating type A cells.
灰鑄鐵의 低周波爐 熔解에서 鑄鐵 加工屑 添加에 依한 黑鉛組織 改善
朴龍鎭,金奉玩 弘益大學校 1985 弘大論叢 Vol.17 No.2
It is clear that while the use of electric melting and holding makes possible very high levels of casting quality and consistency, there are a number of operational factors to be controlled. A prolonged holding of molten iron at a higher temperature is likely to cause an increase in chilling tendency, tensile strength and hardness with the formation of undercooled structures. The post inoculation of materials such as Ca-Si, Fe-Si or graphite can produce the opposite effect but it is limited in its possible quantity, resulted in drop of the temperature of tapped melt. In contrast the furnace addition of iron chips prior to tapping makes castings of satisfied quality with a high level of uncleation a low chilling tendency and a typed graphites graph in the electric furnace melt by suppling active nuclei materials.
구태완,이용욱,한길로,황적준 大韓法醫學會 1998 대한법의학회지 Vol.22 No.2
Allele designation for HumACTBP2 is not yet established while many authors introduced different kinds of designation methods. Here, we are introducing a new allele designation method. We used allelic ladder as an internal size standard on behalf of GS-500ROX and designation of each allele was followed recommendation of DNA commission of International Society of Forensic Hematogenetics(ISFH). This method is considered more reasonable for complex repeat loci like HumACTBP2 than other methods that published before.