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- 저자 : Oh I. S. (검색결과 1,702 건)
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Oh, S C,Park, K H,Choi, I K,Yoon, S Y,Kim, S J,Seo, J H,Choi, C W,Kim, B S,Shin, S W,Kim, J S,Kim, Y H Nature Publishing Group 2005 The British journal of cancer Vol.92 No.5
<P>We conducted this study to ascertain the efficacy and toxicity of docetaxel and cisplatin combined with oral UFT and leucovorin as a first-line treatment for patients with advanced gastric cancer. In all, 52 patients received courses of docetaxel 60 mg m<SUP>−2</SUP> intravenously (i.v.) for 1 h and then cisplatin 75 mg m<SUP>−2</SUP> i.v. for 2 h on day 1. Oral UFT at 400–600 mg day<SUP>−1</SUP>, as determined by body surface area, and leucovorin at 75 mg day<SUP>−1</SUP> were administered for 21 consecutive days from day 1, and this was followed by a 7-day drug-free interval. A total of 225 courses were administered, and the median number of courses per patient was four. Four complete responses (7.7%) and 22 partial responses (42.3%) were achieved, giving an overall response rate of 50% (95% Confidence Interval: 36.4–63.6%). The major toxicity was neutropenia, which reached grade 3/4 in 36 patients (69.3%). Grade 3/4 nausea and vomiting was observed in 12 patients (23.1%). Median time to progression was 22 weeks (4 to 156+ weeks), median survival duration was 48 weeks (4 to 156+ weeks), and median response duration was 24 weeks (6–152 weeks). We conclude that docetaxel, cisplatin, oral UFT, and leucovorin combination chemotherapy is effective and tolerable for the treatment of advanced gastric cancer.</P>
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Hwang, H.,Kim, K.I.,Kwon, J.,Kim, B.S.,Jeong, H.S.,Jang, S.J.,Oh, P.S.,Park, H.S.,Lim, S.T.,Sohn, M.H.,Jeong, H.J. Pergamon Press 2017 Nuclear medicine and biology Vol.52 No.-
<P>Advances in knowledge: Transarterial embolization is a conceivable treatment option for patients with inoperable liver cancer to mitigate the disease progression. Recently, we have developed chitosan-based hydrogel microparticles. In the present study, the hydrogel microparticles were radiolabeled with I-131 for treatment of liver cancer. Our results demonstrated that a hepatic arterial injection of I-125 -labeled Chi resulted in substantial liver accumulation, which was accompanied by virtually no extrahepatic deposition. The results of the present study also showed that administration of I-131 Chi markedly suppressed tumor growth, compared to controls and to animals receiving unlabeled Chi. I-131 -labeled chitosan hydrogel microparticles represent a new therapeutic approach for treatment of liver cancer. (C) 2017 Elsevier Inc. All rights reserved.</P>
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Lee, Y.,Umasuthan, N.,Whang, I.,Revathy, K.S.,Lee, S.,De Zoysa, M.,Oh, C.,Kang, D.H.,Noh, J.K.,Lee, J. Academic Press 2014 FISH AND SHELLFISH IMMUNOLOGY Vol.41 No.2
IκBα is a member of IκB family, which sequesters NF-κB in an inactivate form in the cytoplasm and blocks the translocation of NF-κB to nucleus. The IκBα paralogs of rock bream (OfIκBα-A and OfIκBα-B) encoded IκBα proteins with typical features including, highly conserved IκB degradation motif, six ankyrin repeats and a PEST sequence. However, their amino acid identity and similarity were only 55.6 and 69.7%, respectively suggesting that these two genes could be the two different isoforms of IκBα. The number and size of the exons of OfIκBα-A and OfIκBα-B were conserved well with all the compared vertebrate species, although they have significantly different genomic sizes. Phylogenetic analysis revealed that OfIκBα-A and OfIκBα-B proteins cluster with IκBα family members; however, they were grouped with different subclades in IκBα family. Tissue specific expression of OfIκBα mRNA was constitutively detected in all the tested tissues, and they showed the higher transcription level in heart, liver, gill and peripheral blood cells, respectively. The injection of flagellin stimulated the mRNA expression of OfIκBα paralogs in head kidney and intestine. Moreover, the OfIκBα mRNA expression in gill and liver was significantly up-regulated by LPS, poly I:C and Edwardsiella tarda challenges. The transcription of OfIκBα was up-regulated in early-phase of injection and then rapidly restored. These results suggest that the OfIκBα paralogs might be involved in rapid immune responsive reactions in rock bream against bacterial and viral pathogens.
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여호와 증인 환자에서 산부인과적 무혈 수술의 임상적 고찰
이성욱,오일영,서상기,반태학,박윤희,박성철,한광수 대한산부인과학회 2000 Obstetrics & Gynecology Science Vol.43 No.5
목적 : 여호와의 증인은 자신들의 교리에 따라 혈액이나 기타 혈액제재의 사용을 거부하는 종파이다. 이들에 대한 산부인과적 무혈 수술의 임상상 및 수술후 결과를 후향적으로 검토하였다. 연구방법 : 1995년 2월부터 1999년 8월까지 세종병원에서 입원 기간 중 어떠한 혈액이나 혈액제재를 투여 받지 않았던 여호와의 증인 환자 50예에 대해 무혈 수술의 성적을 후향적으로 조사하였다. 결과 : 환자의 연령 분포는 9세와 58세 사이로 평균 36.7 ± 8.7세 이었다. 무혈 수술의 가장 흔한 사례는 제왕 절개술이었다. 인간 조혈촉진인자(EPO)를 제왕 절개술 5예, 전자궁 적출술 2예, 난소 종양 2예에 투여하였다. EPO를 투여 받은 9예에서는 평균 혈색소 수치가 수술 전에 비해 수술 후 오히려 의미있게 증가하였다. 조직학적 결과로는 자궁 선근증 9예, 평활근종 8예, 생식 세포종 3예, 자궁외 임신 2예, 자궁 상피내 종양 1예, 상피성 난소 종양 1예, 출혈성 황체 낭종 1예, 성기삭 간질성 종양 1예로 총 27예이었다. 무혈 수술로 인한 술 후 사망은 없었으며 이환율도 적었다. 결론 : 여호와의 증인 환자에 대한 산부인과적 수술이 요구될 때 세심한 수술 기법과 다양한 혈액 보존법 등을 이용한다면 비교적 양호한 무혈 수술의 결과를 얻을 수 있었다. 그러나 향후 여호와의 증인 환자에 대한 특수화된 프로그램의 개발이 필요하다고 사료되었다. Objective : Jehovah's Witnesses are members of a religious denomination whose beliefs prohibit the use of blood or blood products. Plasma volume expanders and extracorporeal hemodilution of the patients's own blood are theologically acceptiable. And so we evaluated effectiveness of major operative procedures carried out on Jehovas's Witnesses patients without blood transfusions or blood products. Methods : We retrospectively studied 50 cases of Jehovas's Witnesses who underwent obstetric and gynecologic bloodless surgery from February 1995 to August 1999. No patients recieved any blood or blood products during hospitalizaion. Results : The age distribution of patients was between 9 years and 58 year, average 36.7±8.7 years old. The most common cases for bloodless surgery was Cesarean section. The recombinant human erythropoietin(EPO) was treated in 5 cases of Cesarean section, 2 cases of TAH and 2 cases of ovarian tumor perioperatively. EPO-treated 9 cases were increased postoperative mean Hb levels compared with preoperative mean Hb levels. Histology revealed 9 cases of adenomyosis, 8 cases of leiomyoma, 3 cases of germ cell tumor, 2 cases of ectopic pregnancy, 1 case of CIS, 1 case of Krukenberg tumor, 1 case of epithelial cell tumor, 1 case of hemorrhagic corpus tumor and 1 case of sexcord stromal tumor, total 27 cases. There was no operative death and postoperative morbidities were few. Conclusions : We concluded that if we preformed the surgeries with careful operative techniques and various blood conserving procedures we could do the bloodless surgery of Jehovah's Witnesses with relative safety. But the establishment of a well programmed special medical supports for the Jehovah's Witnesses community will be needed in future.
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Whang, I.,Lee, Y.,Lee, S.,Oh, M.J.,Jung, S.J.,Choi, C.Y.,Lee, W.S.,Kim, H.S.,Kim, S.J.,Lee, J. Academic Press 2011 Fish & shellfish immunology Vol.30 No.2
Lysozyme (muramidase) represents an important defense molecule of the fish innate immune system. Known for its bactericidal properties, lysozyme catalyzes the hydrolysis of β-(1,4)-glycosidic bonds between the N-acetyl glucosamine and N-acetyl muramic acid in the peptidoglycan layer of bacterial cell walls. In this study, the complete coding sequence of a g-type lysozyme (RBgLyz) was identified in the Oplegnathus fasciatus rock bream fish genome by means of multi-tissue normalized cDNA pyrosequencing using Roche 454 GS-FLX(TM) technology. RBgLyz is composed of 669 bp, with a 567 bp open reading frame that encodes 188 amino acids. Protein motif searches indicated that RBgLyz contains the soluble lytic transglycosylase domain involved in maintaining cell wall integrity. Furthermore, RBgLyz shares significant identity (81.4%) with Chinese perch Siniperca chuatsi. Quantitative real-time RT-PCR analysis results showed that RBgLyz transcripts are constitutively expressed in various tissues from healthy rock breams. In order to determine RBgLyz function in immunity, its expression was analyzed in head kidney following exposure to known immune stimulants or pathogens. RBgLyz transcripts were significantly up-regulated in response to challenge with lipopolysaccharide (LPS) and Edwardsiella tarda, as compared to non-injected control fish. Polyinosinic:polycytidylic acid (poly I:C) dsRNA stimulated a moderate expression of RBgLyz, as did Streptococcus iniae but to a lesser extent. There were no specific time-dependent effects on RBgLyz mRNA expression observed in response to rock bream iridovirus (RBIV) infection. Taken together, the gene expression results indicated that g-type lysozyme plays a role in the innate immune response to LPS, poly I:C, E. tarda and S. iniae in rock bream. Thus, we generated recombinant RBgLyz in an Escherichia coli expression system and characterized its antimicrobial activity. Our results indicated that recombinant RBgLyz had lytic activity against Gram-negative Vibrio salmonicida, Gram-positive Listeria monocytogenes, S. iniae and Micrococcus lysodeikticus. In addition, observations by scanning electron microscope (SEM) confirmed that the cell morphology of M. lysodeikticus was altered in the presence of recombinant RBgLyz.
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최동석(D.S.Choi),김덕줄(D.J.Kim),오승묵(S.M.Oh),황의상(E.S.Hwang),정용일(Y.I.Jeong) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.6_2
The OH molecule is a highly reactive combustion intermediate and relatively abundant in combustion systems. It also has the availability of convenient UV -laser systems to excite the A²Σ-X²?? electronic transition. The spectroscopic parameters describing this transition are well known. In this research, the OH molecule was measured in the laminar flame burner and constant volume combustion chamber(CVCC) in order to use it as the fundamental data for studying combustion phenomena. The LIF images of the OH molecule in the laminar 리ame burner were caught by using KrF excimer laser and ICCD camera. The natural fluorescence<br/> of OH was also measured by the interference filter(310 nm) and spectrometer in the CVCC at different equivalence ratios.
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축산농가 오수가 충주호에 유입되는 지천의 수질에 미치는 영향
오인환,이종현,황현섭,장영수,Oh, I. H.,Lee, J. H.,Hwang, H. S.,Jang, Y. S. 한국축산환경학회 2005 축산시설환경학회지 Vol.11 No.2
축산농가가 인근의 하천수질에 미치는 영향을 규명하기 위하여 충주호 주변 3곳을 선정하여 계절별로 지천의 수질을 조사하였다. 여름철에 T-N이 상류와 하류에서 각각 최소 0.005에서 최대 5.005 ppm이 조사되었고, 인산성 인이 S2 지점의 하류에서 0.5 ppm 검출되었다. COD는 8에서 20 ppm의 범위를 나타내었다. 가을철에 총 질소는 3측정지점을 통털어 상류지점에서 최저 0.005 ppm, 하류지점에서 최고 5.005 ppm을 나타내었으며, 역시 S2 지점의 하류에서 인산성 인이 0.5 ppm을 나타내었다. COD는 3 ppm에서 6 ppm의 범위를 나타내어 여름철보다 양호하였다. 겨울철에는 총 질소가 상류지점에서 최저치 0.053 ppm을 하류지점에서 최대치 0.51 ppm을 나타내었으며, 인산성 인은 S2 지점의 하류에서만 0.5 ppm을 나타내었고, COD는 가을철과 비슷하게 3 ppm에서 6 ppm을 나타내었다. 충주호 지천의 수질분석에서 여름철보다는 가을, 겨울철로 접어들면서 수질이 양호해지는 것으로 나타났으며, 전반적으로 축산농가에서 유출되는 오수가 지천에 영향을 미치지 않는 것으로 판단된다. To investigate the influence of livestock farm's wastewater on the near stream, the water quality of 3 different streams are analysed after seasons. In summer, the minimum T-N in the upper stream was 0.005 ppm and the maximum T-N in the down stream was 5.005 ppm. The phosphate was detected only in down stream of S2 point and was 0.5 ppm. COD was varied from 8 ppm in upper stream to 20 ppm in down stream. In fall, the T-N and the phosphate had shown similar results as that of in summer, however COD was varied from 3 ppm in upper stream to 6 ppm in down stream. In winter, the minimum T-N in the upper stream was 0.053 ppm and the maximum T-N in the down stream was 0.51 ppm. The phosphate was detected only in down stream of S2 point and was 0.5 ppm. COD was varied from 3 ppm in upper stream to 6 ppm in down stream. To be becoming fall and winter, the water quality of streams showed better than that of summer, and the wastewater from the livestock farms had little influence on the near streams.
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Kim, J. M.,Lee, D. H.,Kim, J. S.,Lee, J. Y.,Park, H.-G.,Kim, Y.-J.,Oh, Y.-K.,Jung, H. C.,Kim, S. I. Blackwell Publishing Ltd 2009 Clinical and experimental immunology Vol.155 No.3
<P>Summary</P><P>Enterotoxin produced by enterotoxigenic <I>Bacteroides fragilis</I> (BFT) has been associated with mucosal inflammation and diarrhoeal diseases. In this study, the anti-inflammatory molecular mechanism of 5,7-dihydroxy-3,4,6-trimethoxyflavone (eupatilin) was characterized in an HT-29 intestinal epithelial cell line stimulated with BFT. Pre-treatment of HT-29 cells with eupatilin decreased the production significantly of both interleukin (IL)-8 and prostaglandin E<SUB>2</SUB> induced by BFT in a dose-dependent manner. BFT-activated nuclear factor-kappaB (NF-&kgr;B) signals in HT-29 cells and pretreatment with eupatilin suppressed NF-&kgr;B activation that resulted in the significant inhibition of IL-8 and cyclo-oxygenase-2 expression. BFT-induced phosphorylation of both I&kgr;B&agr; and I&kgr;B kinase (IKK) signals was prevented in eupatilin-pretreated HT-29 cells. Transfection of siRNA for IKK-&agr; and IKK-&bgr; decreased the production of IL-8 and prostaglandin E<SUB>2</SUB>; however, the transfection of IKK-&bgr; siRNA showed a more significant reduction of BFT-induced I&kgr;B&agr; phosphorylation compared with that of IKK-&agr; siRNA. In addition, herbimycin A, a specific inhibitor of heat shock protein 90 (Hsp90), decreased the BFT-induced activation of IKK and NF-&kgr;B, suggesting that Hsp90 is associated with a pathway of IKK-NF-&kgr;B-IL-8/cyclo-oxygenase-2 gene signalling. Furthermore, eupatilin dissociated the complex between Hsp90 and IKK-&ggr; in BFT-stimulated HT-29 cells. These results suggest that eupatilin can suppress the NF-&kgr;B signalling pathway by targeting the Hsp90-IKK-&ggr; complex in intestinal epithelial cells and may attenuate BFT-induced inflammatory responses.</P>
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Kim, T.-B.,Oh, S.-Y.,Park, H.-K.,Jeon, S.-G.,Chang, Y.-S.,Lee, K.-Y.,Cho, Y. S.,Chae, I.-H.,Kim, Y.-K.,Cho, S.-H.,Moon, H.-B.,Min, K.-U.,Kim, Y.-Y. Blackwell Publishing Ltd 2009 Journal of clinical pharmacy and therapeutics Vol.34 No.4
<P>Summary</P><P>Background and objective: </P><P>Treatment with angiotensin-converting enzyme (ACE) inhibitors can induce chronic cough in many patients. Genetic variations in the neurokinin 2 receptor gene (NK2R) are significantly associated with cough sensitivity to capsaicin.</P><P>Methods: </P><P>This study assessed the relationship between genetic polymorphisms in the NK2R gene and chronic cough in 91 patients taking ACE inhibitors. Patients included in the study did not have chest abnormalities, postnasal drip, gastroesophageal reflux or a recent history of upper respiratory infection.</P><P>Results: </P><P>We detected two single nucleotide polymorphisms in the NK2R gene (i.e., Gly231Glu and Arg375His). The allelic frequencies at amino acid 231 were 36·3% for Gly/Gly, 49·5% for Gly/Glu and 14·3% for Glu/Glu. The allelic frequencies at amino acid 375 were 74·7% for Arg/Arg, 24·2% for Arg/His and 1·1% for His/His. The prevalence of chronic cough in patients with the amino acid 231 genotype was 33·3% in Gly/Gly homozygotes, 24·4% in Gly/Glu heterozygotes and 0% in Glu/Glu homozygotes. There was a statistically significant association between chronic cough and the Glu/Glu allele (<I>P</I> = 0·028) when the data were analyzed with a recessive model. In addition, there was a significant inverse linear association between the number of Glu231 alleles and ACE inhibitor-related cough (<I>P </I>=<I> </I>0·026). The prevalence of chronic cough in patients with the amino acid 375 genotype was 22·1% in Arg/Arg homozygotes, 31·8% in Arg/His heterozygotes and 0% in His/His homozygotes, although none of these association were statistically significant.</P><P>Conclusion: </P><P>Our findings indicate that the Gly231Glu polymorphism is associated with a lower prevalence of ACE inhibitor-related cough.</P>
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