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최순규,엄기수,성현순,김윤영,이시우,정대일,이용균 동아대학교 환경문제연구소 1994 硏究報告 Vol.17 No.2
The absorption ability of low density heavy metal of pine needles and cones is better than one of existing absorption materials in treatment ability and experimental condition. The elimination ability of chlorine of pine needles and cones is better than one of active carbon. In elimination of trihalomethane, the effect of treatment of pine needles is lower than one of pine cones. And surface of pine needles and cones after absorption of heavy metal ion was observed by Scanning Electron Microscope(SEM). Application and availability of pine needles and cones as absorption material need lots of experiments. The experiment on Gal-Bi(fallen leaves) is proceeding.
Chinese hamster 난소세포에서 DNA - 단백질 교차결합과 glutathione S - 전이효소의 발현에 대한 돌연변이원에 의해 유도된 교차적응반응
이동욱,엄경일,오규선,장정현,문용석 한국유전학회 2001 Genes & Genomics Vol.23 No.2
The present study has been undertaken to elucidate whether glutathione S-transferase (GST) is related to cross-adaptive response to DNA-protein crosslink (DPC) induced by ethyl methanesulfonate (EMS) or ultraviolet radiation (UV)-C in Chinese hamster ovary (CHO) cells. DPC was determined by SDS-K^+ precipitation method, and GST was measured by western blot analysis. 2,4-Dinitrophenol (DNP) that depletes cellular ATP and cycloheximide (CHM) that inhibits protein synthesis were used to find whether DNP and CHM affected the expression level of GST and cross-adaptive response to EMS or UV. There is a cross-adaptive response to DPC in cells pretreated with EMS or UV and subsequently treated with UV or EMS, respectively. In cells pretreated with 2 mM EMS and subsequently treated with 5J/㎡ UV, DNP and CHM did not affect cross-adaptive response to DPC and GST. And also, in cells pretreated with 1J/㎡ UV and subsequently treated with 8 mM EMS, CHM did not affect crass-adaptive response to DPC and the expression level of GST. But DNP increased the amount of DPC, and decreased the expression level of GST in UV-pretreated cells. These results suggest that GST are involved in the induction of cross-adaptive response to DPC in CHO cells.
Kim, Yong Beom,Song, Yong Sang,Jeon, Yong Tark,Park, Jong Sup,Um, Soo Jong,Kim, Jae Weon,Park, Noh Hyun,Kang, Soon Beom,Lee, Hyo Pyo National Hellenic Research Foundation 2005 ONCOLOGY REPORTS Vol.14 No.2
<P>In this study, we investigated the sequence variation and different transcriptional activities of the upstream regulatory region (URR) in HPV 16 E7 variants in cervical cancer tissue from Korean women. Using PCR-directed sequencing, the presence of sequence variations in URRs were analyzed and the sites of sequence variation were matched with the known transcriptional factor binding site (TFBS) in 26 HPV 16 E7 variants, 21 cases with A647G (KE7-1, high oncogenic potential) and 5 cases with T732C (KE7-2, low oncogenic potential). In addition, we determined the transcriptional activity of URR in a HPV 16 prototype, and in 4 cases of HPV 16 E7 variants, by using the functional chloramphenicol acetyl transferase (CAT) assay. The 26 HPV 16 E7 variants showed more than 11 sites of sequence variation in the URR. Ten sites of sequence variation were located in the known TFBS and the distribution of sequence variations in the URR showed clear differences between KE7-1 and KE7-2. The sequence variations T7781C and C7786T were matched with YY1 binding sites, G7193T and C7689A were matched with TEF1 binding sites, and C7394T and C7395T were matched with GRE binding sites. The other sequence variations, which were matched with the TFBS, were A7485C, G7489A, T7743G and G7842A. The URR activity of KE7-1 was significantly lower than that of the HPV 16 prototype, whilst KE7-2 was similar. Taken together with the results of the transcriptional activities of KE7-1 and KE7-2, our results suggest that the functional activity and sequence variations of HPV 16 URR may not be related to the oncogenic potential of HPV 16 E7 variants.</P>
미만성 소장 부종과 복수를 동반한 호산구성 위장관염 1예
엄현주(Hyun Ju Um),김병익(Byung Ik Kim),박현덕(Hyun Duk Park),구은실(Eun Sil Koo),조용균(Yong Kyun Cho),김창섭(Chang Seop Kim),박창영(Chang Young Park),손정일(Jung Il Sohn),전우규(Woo Kyu Jeon),정을순(Eul Soon Jung),김명숙(Myung Sook 대한내과학회 2000 대한내과학회지 Vol.59 No.1
Eosinophilic gastroenteritis is an uncommon disorder of stomach, small bowel and colon characterized by peripheral blood eosinophilia, eosinophilic infiltration of the gut wall, and variable clinical symptoms. This disease was first described by Kaijser in 1937, and its cause was poorly understood. It may be related to allergy, which combines allergic rhinitis, allergic asthma, atopic dermatitis, food allergy and elevated IgE. The clinical symptoms and signs are variable according to the extents and depths of the eosinophilic infiltration. Endoscopic findings may show normal, nodular, ulcerative, or hemorrhagic mucosal changes, and biopsy findings reveal eosinophilic infiltration of mucosal and muscular layer. We diagnosed and treated a case of diffuse serosal eosinophilic gastroenteritis associated with ascites in a patient with allergic asthma who had severe abdominal pain, distention and watery diarrhea, and she dramatically responded to corticosteroid therapy.(Korean J Med 59:74-79, 2000)