http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
제한효소인 Sdi Ⅰ을 생성하는 Streptomyces 분리 균주의 수리동정
배무,서원나,송은숙,이계준 이화여자대학교 생명과학연구소 1994 생명과학연구논문집 Vol.5 No.-
제한효소인 Sdi I을 생산하는 한 균주(Streptomyces sp.264)를 토양으로부터 분리하여 형태적 관찰 및 수리동정을 실시하였다. 50여개의 분류 단위 형질을 분석하였고, 이 실험 결과를 TAXON program에 적용하여 종의 수리동정을 실시하였다. 그 결과 분리균 sp.264는 Streptomyces의 제 19주군집에 속하는 Streptomyces diastatochromogenes의 한 균주로 동정되었다. Numerical identification was applied for Streptomyces sp.264, an isolate producing a new restriction endonuclease Sdi I. The restriction enzyme would appear to be an isoschisomer of Xho I. Fifty taxonomic unit characters were tested and the data obtained were analyzed numerically by using the TAXON program. The isolate was identified to be the jamor cluster 19 of Streptomyces and best matched to S. diastatochromogenes. It was, therefore, concluded that the isolate was identified to be a member of Streptomyces diastatochromogenes.
위암세포에 의한 종양침윤 림프구의 면역반응 억제기전에 관한 연구
박정규,송규상,서광선,최정목,배진선,장일성,윤완희,노승무,조은경,백태현 大韓免疫學會 1995 大韓免疫學會誌 Vol.17 No.3
Tumor-infiltrating lymphocytes ('1°ILs) interact most closely with tumor cells and thus are more likely to reflect tumor host interactions accurately. But it is unknown whether such T cells are nonspecific inflammatory cells or a subset of specific host immune responses. In this study, there was no clear correlation between the infiltration of T lymphocytes in stomach cancer and the overexpression of c-ErbB-2 or increasing class I MHC expression on tumor cells. A positive correlation was seen between the presence of TILs in the tumor and tumors with diploidy by flow cytometric DNA analysis. The proliferative responses of Ills stimulated with IL-2, anti-CD3 mAb, or both were examined. When compared to normal mucosal-associated lymphoid tissue lymphocytes, the proliferative response of TILs to high dose IL-2 was minimal. A similarly poor response to anti-CD3 mAb plus IL-2 was also observed. The freshly isolated TILs exhibit reduced ability to proliferate in response to IL-2, anti-CD3 mAb or both. The microenvironment of the tumor suppresses the proliferative capacity of the TILs. The mechanism of this suppression remains unknown. It could be mediated by suppressor cells, by soluble substances within the tumor, or both. To examine this question, supernatants of stomach cancer cells (SNSNU-1) were tested for the presence of immunosuppressive factors. Human peripheral blood T-cells and tumor-draining lymph node lymphocytes (TDLNL) were incubated for 3 days with SNSNU-1 and then assessed for proliferative responses to PMA, anti-CD28 mAb, or both and for the inducibility to express IFN- r or IL-4 mRNA to PMA. Peripheral blood T-cells pretreated with SNSNU-1 were unable to proliferate in response to PMA, anti-CD28 mAb or both. SNSNU-1 also produces inhibitory activities of TDLNL proliferative response to PMA or anti-CD28 mAb and PMA (49%, 52%, respectively). In contrast, culture supernatants obtained from HEp-2, K562 or Daudi showed normal proliferative responsiveness of peripheral blood T-cells and TDLNL by PMA, anti-CD28 mAb or both.
간세포암환자에서 간동맥 화학 색전술 후 발생한 리피오돌에 의한 폐렴 1예
김소이,김유리,허현미,배서은,이명원,최윤정,김고흔,김태헌,유 권,문일환 이화여자대학교 의과대학 2009 EMJ (Ewha medical journal) Vol.32 No.2
Hepatocellular carcinoma(HCC)is one of common causes of cancer-related death in Korea where the majority of HCC patients were Hepaitc B virus(HBV)carriers and have cirrhosis. Transarterial chemoembolization(TACE)is commonly applied to the treatment of multinodular HCC in Korea and careful selection of candidate is important for the risk of various side effects. Besides common side effects as fever, nausea, abdominal pain and elevation of liver enzyme, TACE may predispose to hepatic failure, ischemic cholecystitis, pulmonary embolism, cerebral embolism and pneumonitis. In previous studies, some cases of pulmonary and cerebral embolism cases were reported but lipiodol pneumonitis after TACE was rarely reported. A 65-year-old woman with a multinodular HCC associated with HBV infection, was treated with TACE. Seven days after the procedure, nonspecific respiratory symptoms such as dyspnea and dry cough developed. Chest X-ray and chest computed tomography showed diffuse ground glass opacities in whole lung fields, suggestive of lipiodol pneumonitis. After several days of supportive care with steroid administration, radiologic abnormalities and subjective symptoms were much improved, considered that the disease was compatible with lipiodol pneumonitis.
한국 정신장애의 역학 조사 연구[I] : 각 정신장애의 유병률
조맹제,함봉진,김장규,박강규,정은기,서동우,김선욱,조성진,이준영,홍진표,최용성,박종익,이동우,이기철,배재남,신정호,정인원,박종한,배안,이충경 大韓神經精神醫學會 2004 신경정신의학 Vol.43 No.4
Objectives : This study aims to estimate the prevalence of the DSM-IV psychiatric disorders in Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI). Methods : Subjects were selected by taking multi-stage, cluster samples of 7,867 adult household residents, 18 to 64 years of age, in ten catchment areas. Total 78 trained interviewers administered the K-CIDI to the selected respondents, from June 1 to November30,2001. Results : Total 6,275 respondents completed the interview. Some 33.5% of respondents reported at least one lifetime disorder, 20.6% reported at least one-year disorder, and 16.7% reported at least one-month disorder. The most common lifetime disorders were alcohol abuse/dependence (17.24%), nicotine dependence/withdrawal (11.19%), specific phobia (5.16%), and major de-pressive disorder (4.25%). The lifetime prevalence of substance abuse/dependence (0.25%) and schizophrenia (0.16%) was very low. Nicotine and alcohol use disorder showed very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among female than male. Conclusion : The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in distributions of psychiatric disorders across the areas and times were observed.
( Suh Eun Bae ),( Kyung Jo Kim ),( Jun Bum Eum ),( Dong Hoon Yang ),( Byong Duk Ye ),( Jeong Sik Byeon ),( Seung Jae Myung ),( Suk Kyun Yang ),( Jin Ho Kim ) 대한소화기학회 2013 Gut and Liver Vol.7 No.4
Background/Aims: Polyethylene glycol (PEG)-based gut lavage solutions are safe and effective, but require the intake of large volumes of fluid. The use of 2 L PEG plus 45 mL sodium phosphate (PEG2 plus NaP) was compared with 4 L PEG (PEG4) for bowel cleansing before colonoscopy. Methods: Patients were randomized to the PEG2 plus NaP group or PEG4 group between January 1, 2009 and March 31, 2010. One hundred and thirty patients were included in the PEG2 plus NaP group, and 141 patients in the PEG4 group. Results: The qualities of the bowel preparation, based on the Ottawa scale were not significantly different between the groups (4. ±2.25 for the PEG2 plus NaP group vs. 5.11±2.26 for the PEG4). In addition, there were no significant differences in side effects. Laboratory findings after bowel preparation, including electrolyte, phosphorus and creatinine levels, were within the normal ranges in both groups. Conclusions: PEG2 plus NaP provides good cleansing that is similar to PEG4, but with a lower volume. However, because PEG2 plus NaP can cause serious side effects such as calcium deposition in the kidneys (i.e., nephrocalcinosis), this solution might be considered for the outpatients who cannot tolerate PEG4. (Gut Liver 2013; 7:423-429)
항혈소판제 단독 혹은 병합요법이 상부위장관 출혈에 미치는 영향
배서은 ( Suh Eun Bae ),김성은 ( Seong Eun Kim ),정성애 ( Sung Ae Jung ),윤소윤 ( So Yoon Yoon ),심기남 ( Ki Nam Shim ),정혜경 ( Hye Kyung Jung ),김태헌 ( Tae Hun Kim ),유권 ( Kwon Yoo ),문일환 ( Il Hwan Moon ) 대한소화기학회 2011 대한소화기학회지 Vol.57 No.4
Background/Aims: The increasing incidence of cardiovascular disease has led to an increase in the frequency of upper gastrointestinal (GI) hemorrhage due to the use of antiplatelet agents. This study examined the clinical characteristics of patients with upper GI hemorrhage who were administered aspirin alone or a combination treatment of antiplatelet agents. Methods: A 656 patients who underwent drug-eluting coronary stenting at Ewha Mokdong Hospital in 2008 were divided into three groups according to the antiplatetlet agents used after the intervention; groups of aspirin alone, aspirin plus clopidogrel, and aspirin, and clopidogrel plus another antiplatelet agent, respectively. Patients admitted with GI hemorrhage in the same period without a medication history of antiplatelet or nonsteroidal anti-inflammatory drugs were used as the control hemorrhage group. The medical records were reviewed. Results: Significant GI symptoms were observed in 21.1% of total patients, of whom 48.2% had ulcers. The upper GI hemorrhage rate was 3.8%. There was no significant difference in the hemorrhage rate between three groups. Compared to the control hemorrhage group, the endoscopic variables of the antiplatelet-related hemorrhage group were not significantly different. However, the Helicobacter pylori infection rate was lower, the admission period was longer, and the mortality rate was higher in the antiplatelet-related hemorrhage group (p<0.05, respectively). There was no direct association between restarting or discontinuance of antiplatelets after the hemorrhage event and mortality. Conclusions: Adding other antiplatelet agents to aspirin did not increase the hemorrhage rate. However, active diagnostic and therapeutic efforts are recommended in patients with GI symptoms during antiplatelet therapy. (Korean J Gastroenterol 2011;57:213-220)
저가형 초미세먼지 센서 정확도 향상을 위한 인공지능 기반 센서 데이터 예측 기법
서경덕(Suh KyungDuk) 한국정보기술학회 2020 Proceedings of KIIT Conference Vol.2020 No.10
컴퓨팅 속도가 발전함에 따라 빠른 컴퓨팅 속도를 이용한 머신러닝과 딥러닝을 이용한 센서 데이터의 분석사례가 늘고 있다. 이 논문에서는 여러 인공지능 분석기법을 이용해 저가형 센서 데이터가(PM2.5) 고가형 센서와 근접한 성능을 낼 수 있는 방법에 대해 제안하며, 각각의 분석기법을 통한 예측값을 비교해 봄으로로써 인공지능 기법의 특성에 관해 기술하였다. As computing speed develops, there are more and more cases of machine learning using fast computing speed and analysis of sensor data using deep learning. This paper suggests how low-cost sensor data(PM2.5) can perform close to high-end sensors by using various artificial intelligence analysis methods. This paper also describes the characteristics of artificial intelligence techniques by comparing the predicted values through each analysis method.
( Ji Young Lee ),( Eun Jeong Gong ),( Eun Ju Chung ),( Hye Won Park ),( Suh Eun Bae ),( Eun Hee Kim ),( Jaeil Kim ),( Yoon Suh Do ),( Tae Hyup Kim ),( Hye-sook Chang ),( Ho June Song ),( Jaewon Choe ) 대한간학회 2017 Gut and Liver Vol.11 No.6
Background/Aims: Because of the poor prognosis of diffuse-type gastric cancer, early detection is important. We investigated the clinical characteristics and prognosis of diffuse-type early gastric cancer (EGC) diagnosed in subjects during health check-ups. Methods: Among 121,111 subjects who underwent gastroscopy during a routine health check-up, we identified 282 patients with 286 EGC lesions and reviewed their clinical and tumor-specific parameters. Results: Patients with diffuse-type EGC were younger, and 48.1% of them were female. Serum anti-Helicobacter pylori IgG (Hp-IgG) was positive in 90.7% of diffuse-type EGC patients (vs 75.9% of intestinal-type EGC, p=0.002), and the proportion of diffuse-type EGC cases increased significantly with increasing Hp-IgG serum titers (p<0.001). Diffuse-type EGC had pale discolorations on the tumor surface (26.4% vs 4.0% in intestinal-type EGC, p<0.001) and were often located in the middle third of the stomach. Submucosal invasion or regional nodal metastasis was observed more commonly in patients with diffuse-type EGC. However, during the median follow-up period of 50 months, 5-year disease-free survival rates did not differ between the groups. Conclusions: Diffuse-type EGC shows different clinical and endoscopic characteristics. Diffuse-type EGC is more closely associated with Hp-IgG seropositivity and a higher serum titer. Early detection results in excellent prognosis. (Gut Liver 2017;11:807-812)