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근치적 위절제술을 시행한 위암 환자에서 보조요법으로서 5-Fluorouracil, Epirubicin과 5-Epirubicil,Cisplatin의 복합화학요법의 효과 비교
최정혜,안명주,한동수,손주현,전용철,박훤겸,백홍규,이홍기,남영수 한양대학교 의과대학 2000 한양의대 학술지 Vol.20 No.2
To compare 5-fluorouracil plus epirubicin (FE) to 5-fluorouracil plus cisplatin (FP) chemotherapy as adjuvant therapy for patients with resected gastric cancer. Between August 1995 and March 2000, 46 patients with completely resected gastric cancer received six courses of FE (5-fluorouracil 1000mg/m2/day, D2-D5, epirubicin 70mg/m2, D1) or FP (5-fluorouracil 1000mg/m2/day, D2-D5, cisplatin 70mg/m2, D1) chemotherapy. The 23 patients were assigned to each treatment group. A total of 127 courses of treatment were given both FE and FP group. The FP group tended to show more risk of overall death rate. But there were no differences between FE and FP groups in terms of overall survival or disease-free survival. Both treatment arms were generally well tolerated to chemotherapy. We concluded to be no significant differences between FE and FP groups in terms of overall survival or disease-free survival. To define the efficacy of adjuvant chemotherapy for gastric adenocarcinoma, further prospective randomized trials with large number of patients should be warranted.
1998-1999년 절기에 부산지역에서 유행한 인플루엔자 바이러스의 분리
정영기,정명주,이주연,안정배,김지희,김만수,조경순 동의대학교 기초과학연구소 2000 基礎科學硏究論文集 Vol.10 No.1
Investigate the epidemics for influenza outbreaks. The outbreak pattern of the internal and external patients housed in the 10 designated hospitals was monitered to investigated and the characteristics of the virus isolates are as follows. 232 strains of influenza virus was isolated from the oral specimen of 1,320 respiratory disease patients in Pusan from Oct. 1998 to Jun. 1999. Among these isolates, 222 strains were A-type and the rest were B-type. The outbreak pattern for sex-and age-group is as follows. The male outbreak was similar to the female outbreak: male outbreak, 47.4% and female outbreak, 52.5%. Most of the patients were less than 10 years old. The monthly influenza outbreak was consistent from Dec. 1998 to Apr. 1999. and The 113 strains from the A-type isolates were A/Sydney/05/97(H3N2)-like, the 109 strains were A/Beijing/262/95(H1N1)-like, and all of the 10 B-type isolates were B/Harbin/07/94-like.
Characterization of gltA::luxCDABE Fusion in Escherichia coli as a Toxicity Biosensor
Ahn, Joo-Myung,Kim, Byoung-Chan,Gu, Man-Bock The Korean Society for Biotechnology and Bioengine 2006 Biotechnology and Bioprocess Engineering Vol.11 No.6
The use of gltA gene, as a new biomarker for environmental stress biomonitoring, was investigated because of its key position as the first enzyme of the tricarboxylic acid (TCA) cycle. A recombinant bioluminescent Escherichia coli strain, EBJM2, was constructed using a plasmid carrying the citrate synthase (gltA) promoter transcribing the Photorhabdus luminescens IuxCDABE genes (gltA::luxCDABE). The responses from this strain were studied with five different classes of toxicants: DNA damage chemicals, phenolics, oxidative-stress chemicals, PAHs, and organic solvents. EBJM2 responded strongly to DNA damage chemicals, such as mitomycin C (MMC) and methyl-nitro-nitrosoguanidine (MNNG) and nalidixic acid with the strongest responses. In contrast, tests with several compounds from the other four classes of toxicants gave no significant response. Therefore, EBJM2 was found to be sensitive to DNA damage chemicals.
Ahn, Joo-Myung,Kim, Joong Hyun,Kim, Ji Hoon,Gu, Man Bock Royal Society of Chemistry 2010 Lab on a chip Vol.10 No.20
<P>We have successfully developed optically coded functional microbeads by co-encapsulating both bioluminescent reporter bacterial cells and fluorescent microspheres within a common alginate microbead. These microbeads harboring an individual self-identification code using fluorescent microspheres could be randomly scattered on any multi-well chip plate as long as the size of the microbeads are made to fit on it with the result that, since cell types are identified on the basis of fluorescent color, microbead arrays were fabricated without pre-designation of an individual well. As an example of this method, five different stress specific bioluminescent bacterial strains, each with a different optical code, were successfully implemented to make five different types of optically coded functional microbeads, with a speed of about 30 microbeads/min. Each functional microbead has a specific stress-specific bacterial strain and, as an identification optical code, one of five optical codes generated from fluorescence microspheres such as yellow, green, red, yellow + green, or no fluorescence. This final randomly scattered functional microbeads array biochip, with a fast fabrication of each chip at every 2 min, successfully demonstrated its ability in toxicity screening and monitoring for samples with a few examples for five different stress chemicals. This simple and fast, but not tedious and complicated procedure should be widely and practically used in making cell array chips for the monitoring of environmental toxicity, new-borne chemicals, pharmaceutical drugs and cosmic rays in the space station or spaceships in future.</P> <P>Graphic Abstract</P><P>A simple, fast, and non-tedious fabrication of cell array chips using functional microbeads containing both bioluminescent bacteria for specific toxicity sensing and fluorescent microspheres as self-identification code. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c004942e'> </P>