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Identification of the Gene Products Responsible for F Plasmid Partitioning
KIM, SUNG0UK,NAGAI, KAZUO,TAMURA, GAKUZO,YU, JU-HYUN,BOK, SONG-HAE 한국미생물 · 생명공학회 1993 Journal of microbiology and biotechnology Vol.3 No.4
DNA subfragments, sopA, sopB and sopC which help to maintain the stability of an on C plasmid, were derived from a mini-F plasmid DNA (EcoRI restriction fragment f5) after digestion with restriction endonuclease, and cloned in the vector plasmid pBR322. The recombinant plasmids obtained were introduced into E. coli KY7231 and E. coli CSR603 strains, and proteins specified by the mini-F fragments were analysed by SDS-PAGE. Two proteins encoded by the F fragments were detected, and their molecular weights were 41,000 and 37,000 daltons. Fluorography after one and two dimensional gel electrophoresis of the lysates showed that these two proteins had been overproduced in the cells which were allowed to incorporate radioactive amino acid after plasmid amplification by chloramphenicol treatment. The isoelectric points of sopA and sopB proteins were 6.6 and 7.0, respectively.
Original Article : Geographic difference of epidemiological features of HCV infection in Korea
( Kyung Ah Kim ),( Sook Hyang Jeong ),( Eun Sun Jang ),( Young Seok Kim3 ),( Youn Jae Lee ),( Eun Uk Jung ),( In Hee Kim ),( Sung Bum Cho ),( Mee Kyung Kee ),( Chun Kang ) 대한간학회 2014 Clinical and Molecular Hepatology(대한간학회지) Vol.20 No.4
Background/Aims: The prevalence of hepatitis C virus (HCV) infection in Korea exhibits significant geographic variation, with it being higher in Busan and Jeonam than in other areas. The reason for this intranational geographic difference was investigated in this study by conducting a comparative analysis of the risk factors related to HCV infection among three geographic areas: the capital (Seoul), Busan, and the province of Jeolla. Methods: In total, 990 patients with chronic HCV infection were prospectively enrolled at 5 university hospitals located in Seoul (n=374), Busan (n=264), and Jeolla (n=352). A standardized questionnaire survey on the risk factors for HCV infection was administered to these three groups of patients, and a comparative analysis of the findings was performed. Results: The analysis revealed significant regional differences in exposure to the risk factors of HCV infection. By comparison with patients in Seoul as a control group in the multivariate analysis, patients in Busan had significantly more experience of invasive medical procedures, acupuncture, cosmetic procedures, and multiple sex partners. In contrast, patients in Jeolla were significantly older, and they had a higher prevalence of hepatocellular carcinoma, a lower prevalence of multiple sex partners, and had experienced fewer invasive procedures. Conclusions: There was a significant geographic difference in the exposure to potential risk factors of HCV infection between patients from the three studied regions. This may explain the regional variation of the prevalence of HCV infection in Korea, and should be taken into account when planning strategies for the prevention and management of HCV infection. (Clin Mol Hepatol 2014;20:361-367)
향기요법이 통증을 주소증으로 입원한 환자의 수면장애에 미치는 영향
박수곤 ( Soo Gon Park ),양미성 ( Mi Sung Yang ),김오영 ( Oh Young Kim ),조희근 ( Hee Guen Jo ),최진봉 ( Jin Bong Choi ),김선종 ( Sun Jong Kim ),설재욱 ( Jae Uk Sul ) 한방재활의학과학회 2010 한방재활의학과학회지 Vol.20 No.4
Objectives :The purpose of this study is to investigate the effects of aroma therapy on sleep disorder patients with musculoskeletal pain. Methods :The 44 patients were divided into 2 groups: Experimental group(Exp. group) was treated with aroma therapy and control group was treated except aroma therapy. To evaluate the efficiency of aroma therapy, the Korean sleep scale A(Jin-Joo Oh, Mi-Soon Song, Sin-Mi Kim. 1998) and visual analogue scale(VAS) were applied before treatment and after 5 days treatment. Results :1. The Experimental group has improved statistical significance in sleep disorder score as compare to the control group. 2. The improvement of sleep disorder score of Exp.group has difference according to impression. 3. The improvement of sleep disorder has an effect on pain decrease. Conclusions :Aroma therapy has effects of improvement on sleep disorder with musculoskeletal pain.
Catalytic co-pyrolysis of epoxy-printed circuit board and plastics over HZSM-5 and HY
Kim, Young-Min,Han, Tae Uk,Kim, Seungdo,Jae, Jungho,Jeon, Jong-Ki,Jung, Sang-Chul,Park, Young-Kwon ELSEVIER 2017 JOURNAL OF CLEANER PRODUCTION Vol.168 No.-
<P><B>Abstract</B></P> <P>The catalytic co-pyrolysis of epoxy-printed circuit board (e-PCB) and thermoplastics, high density polyethylene (HDPE) and polypropylene (PP), over HZSM-5 and HY was performed using a thermogravimetric analyzer and pyrolyzer-gas chromatography/mass spectrometry. The catalytic pyrolysis of e-PCB over both HZSM-5 and HY eliminated the brominated compounds, mainly bromo-phenols and -bisphenol As, to some extent. The co-feeding of HDPE and PP on the catalytic pyrolysis of e-PCB over both HZSM-5 and HY revealed different debromination efficiencies due to the properties of the thermoplastics and catalysts. A comparison of HY(80) and HZSM-5(80) with the same SiO<SUB>2</SUB>/Al<SUB>2</SUB>O<SUB>3</SUB> ratio (80) revealed HY(80) had a better elimination efficiency of brominated compounds during the catalytic co-pyrolysis of e-PCB and HDPE or PP because of its larger pore size than HZSM-5(80). The lowest bromine content was achieved when HDPE and HY(30) were used as the co-feeding reactant and catalyst on the pyrolysis of e-PCB due to the large pore size and high acidity of HY(30), allowing the easier diffusion of large molecular brominated bisphenol A and HDPE molecules into the pores of the catalyst and efficient catalytic intermolecular reactions in the pores of the catalyst. The catalytic co-pyrolysis of e-PCB and HDPE over HY(30) also produced large amounts of mono-aromatic hydrocarbons and mono-phenol, which can be used as fuels or chemical feedstock.</P>
Sang-Yong Son,Chang Min Lee,Ju-Hee Lee,Sang-Hoon Ahn,Jin Won Kim,Kuhn-Uk Lee,Do Joong Park,Hyung-Ho Kim 대한외과학회 2013 Annals of Surgical Treatment and Research(ASRT) Vol.84 No.5
Prophylactic para-aortic lymphadenectomy is not recommended in curable advanced gastric cancer. However, there are few reports on therapeutic para-aortic lymphadenectomy after palliative chemotherapy in far advanced gastric cancer. We report three cases of laparoscopy-assisted gastrectomy with para-aortic lymphadenectomy after palliative chemotherapy for the first time in Korea. Three gastric cancer patients with isolated para-aortic lymph node (PAN) metastasis showed partial response to capecitabine-based chemotherapy, and laparoscopy-assisted gastrectomy with para-aortic lymphadenectomy was performed with curative intent. The mean total operation time was 365 minutes (range, 310 to 415 minutes), and the mean estimated blood loss was 158 mL (range, 125 to 200 mL). The mean number of retrieved PAN was 9 (range, 8 to 11), and all pathologic results showed no metastasis of para-aortic region. All patients recovered and were discharged without any significant complications.
( Sang Hee Lee ),( Ki Uk Kim ) 대한결핵 및 호흡기학회 2020 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.128 No.0
Introduction Patients with chronic obstructive pulmonary disease (COPD) use various strategies to cope with the stressors related to their disease and the treatment procedures. However, it is not well known which factors affect coping with stress in these patients. The purpose of this study is to analyze the coping strategies of COPD patients and to study related factors. Methods A cross-sectional survey was performed in five hospitals in South Korea. At enrolment, all patients completed the Jalowiec Coping Scale (JCS), Satisfaction with Life Scale (SWLS), Personal Resource Questionnaire (PRQ), St. George’s Respiratory Questionnaire (SGRQ), 36-item Short-Form Health Survey (SF-36), and the Hospital Anxiety and Depression Scale (HADS). The data were analyzed via linear regression to identify factors associated with low-level coping strategies of COPD. Results A total of 245 COPD patients were enrolled in this study. The mean total JCS score was 106.9 (SD, 16.8, range 48.0-155.0); higher scores reflected greater effectiveness. The lowest scores were seen for items exploring coping of “Cry;get depressed” and “Take drugs”. On the other hand, the items with the highest scores were “Hope that things will get better”, “Don’t worry about it” and “Settle for the next best thing”. In multivariate analysis, higher level of education (r = 0.03), FEV1 (r = 0.03), SWLS (r = 0.04), PRQ (r = 0.04) and HADS-A score (r = 0.02) were significantly associated with the total JCS score (all p < 0.05). Conclusions As a result of this study, it was found that not only educational level, social support, anxiety symptoms, but also lung function were significantly related to coping strategies of COPD patients. Therefore, coping strategies should be considered an important part in the multidisciplinary approach of these patients.
Chromosome Variation of Tumor Protoclone - Derived Tobacco(Nicotiana tobacum L .)Plants
Kim, Sang Gu,Choi, Dong Uk,Chang, Woo Je 한국유전학회 1989 Genes & Genomics Vol.11 No.4
Plantlet regeneration and chromosome variation in tobacco (Nicotiana tabacum cv. Wisconsin 38) tumor clone transformed by Agrobacterium tumefaciens were investigated. Transformed calluses differentiated shoots on the hormone-free MS medium. The root was efficiently developed from shoot-cut within 2 weeks on the MS medium supplemented with 10 μM IAA and 0.1 μM kinetin. In root tip mitosis of regenerant from transformed cell lines, 34 plants derived from tumor clone transformed by A. tumefaciens C58 showed 48 chromosomes. In regenerants derived from that of A. tumefaciens B6, 45 plants showed 48 chromosomes, one tetraploid and one hypertetraploid of its chromosome number about 101.