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박혜연,김종훈,박경일,황철웅,김태년,남궁준,도준형,이원로,이성윤 白中央醫療院 2005 仁濟醫學 Vol.26 No.1
Brugada syndrome is characterized by right bundle branch block morphology and ST segment elevation in the right precordial leads and a propensity to develop ventricular arrhythmias. Mutations in a cardiac sodium channel gene have been linked to this syndrome, and the ionic mechanisms responsible for the electrocardiographic phenotype are temperature-dependent. This case report describes a patient in whom a typical Brugada ECG pattern developed during fever and returned normal ECG after fever was subsided.
Clopidogrel에 의해 발생된 전신 염증 반응 증후군 1례
김민환,김종훈,박경일,박혜연,황철웅,김의석,도준형,남궁준,이성윤,이원로 白中央醫療院 2005 仁濟醫學 Vol.26 No.1
Clopidogrel bisulfate, a widely used inhibitor of platelet aggregation, is considered at least as safe as aspirin. We describe a 61 year old male patient who developed a systemic inflammatory response syndrome consisting of high fever, rash, chills, impaired liver function, and mild leukopenia after receiving clopidogrel after coronary angiography and stent implantation. The reaction resolved promptly after withdrawal of the drug, thus making the diagnosis of a clopidogrel induced reaction highly probable.
김종훈,남궁준,박혜연,황철웅,박경일,도준형,이성윤,이원로 白中央醫療院 2005 仁濟醫學 Vol.26 No.1
The transient left ventricular apical ballooning syndrome, also known as takotsubo cardiomyopathy is a recently described novel cardiac syndrome. This syndrome is characterized by transient asynergy of the ventricular apex or mid-ventricle in the absence of obstructive epicardial coronay artery disease. This report concerns two types of morphologic difference about left ventricular apex and mid-ventricle. In this case, we report two types of stress-induced cardiomyopathy with review of literatures.
( Won Ho Choi ),( Sung Uk Kwon ),( Yoon Jung Jwa ),( Jung A Kim ),( Yun Ho Choi ),( Je Ho Chang ),( Hoon Jung ),( Joon Hyung Doh ),( June Namgung ),( Sung Yun Lee ),( Won Ro Lee ) 대한내과학회 2009 The Korean Journal of Internal Medicine Vol.24 No.2
Background/Aims: Many prognostic models have been developed to help physicians make medical decisions on treating patients with pulmonary embolism. Among these models, the Pulmonary Embolism Severity Index (PESI) has been shown to be a successful risk stratification tool for patients with acute pulmonary embolism. The PESI, however, had not been applied to patients with pulmonary embolism in Korea. Methods: The patients included in this study were diagnosed by computed tomography at Inje University`s Ilsan Paik Hospital between December 1999 and March 2007. Risk stratification for the patients was performed using the PESI. The mortality rate was calculated according to each PESI risk class. Results: Of the 90 patients enrolled in this study, ten were assigned to PESI class I, 29 to PESI class II, 22 to PESI class III, eight to PESI class IV, and ten to PESI class V. The mortality rate after 30 days in each class was 0, 10.3, 9.1, 0, and 50% (p=0.0016), respectively, whereas the respective hospital mortality rate was 4.8, 13.8, 13.6, 12.5, and 50% (p=0.0065). The overall mortality was 9.5, 27.6, 31.8, 50.0, and 60%, respectively (p=0.0019). The mortality rate was significantly associated with the PESI class. Conclusions: The PESI class was found to be significantly correlated with the 30-day mortality rate, hospital mortality, and overall mortality. Our data indicate that the PESI can be used to predict the prognosis of patients with pulmonary embolism and in making medical decisions regarding the treatment of patients with pulmonary embolism. (Korean J Intern Med 2009;24:123-127)
Sung-Dug Oh,Soo-Yun Park,Doh-Won Yun,Soo-In Sohn,Hyun Suk Cho,Si Myung Lee 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07
The β-carotene biofortified transgenic rice was developed by transforming rice cv. Nakdongbyeo with phytoene synthase (Psy) and carotene desaturase (Crt I) genes isolated from Capsicum and Pantoea. The aim of this study was to perform molecular characterization of rice transformants of T5-T7 generation harboring Psy and Ctr I genes driven by endosperm specific globulin promoter for biosafety evaluation of β-carotene biofortified transgenic rice. The structure and sequence of T-DNA in the transformation vector and the insertion sites, flanking sequences and generational stability of inserted T-DNA in transgenic rice lines were analyzed. The transformation vector consisted of right border, MAR gene, carotenogenic genes unit, herbicide resistance selectable marker unit, MAR gene and left border in sequential order. T-DNA was introduced at the position of 30,363,938-30,363,973 bp of chromosome No. 2 by adaptor-ligation PCR. Stable integration of T-DNA and stable expression of bar gene was confirmed in T5 to T7 generations. It was also confirmed that the backbone DNA of transformation vector containing antibacterial gene was not present in the genome of β-carotene biofortified transgenic rice. HPLC analysis confirmed that carotenoids were consistently detected through T5-T7 generations.
Map-based cloning of SUI4 gene which controls internode elongation in rice
Hyeonso Ji,Gang-Seob Lee,Doh-Won Yun,Seung-Bum Lee,Seok-Chul Suh,Moo-Young Eun 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
Internode elongation is an important agronomic trait in rice that is associated with lodging, yield, and flooding adaptation. We identified a novel rice mutant line showing shortened uppermost internode among the rice Ac/Ds insertional mutant population and named it shortened uppermost internode 4 (sui4). The phenotypes of F1 plants and F2 plants from the cross of sui4 with its original variety, Dongjin, indicated that the SUI4 gene shows incomplete dominance or semidominance. Because the Ds genotypes did not co-segregate with the sui4 phenotypes, we performed mapping of this gene with 273 F2 plants from a cross between sui4 and Milyang23. Primary mapping revealed that the SUI4 locus was located between the S07012 and S07015 markers on rice chromosome 7. Further fine mapping narrowed down the location of SUI4 to the 1.1-Mbp interval of RM1253-S07015. Using re-sequencing data of this mutant along with its original variety, Dongjin, and five other varieties, we found six sui4 specific SNPs occurred within the genic region of five genes in the fine-mapped interval. Among them, one SNP is in exon, while the other five SNPs are in intron. This SNP in exon occurred in the miR172 binding site of a gene encoding AP2 domain transcription factor, which seems to interrupt suppression of this gene activity by miR172. We isolated the genomic region of this gene from sui4 and transformed the wild type variety, Dongjin. The transgenic plants showed remarkably shortened internodes, which indicates that this AP2 domain transcription factor gene is the SUI4 gene.
Selection of salt-tolerant rice mutant lines from Ac/Ds insertional mutant population
Hyeonso Ji,Hakbum Kim,Gang-Seob Lee,Doh-Won Yun,Ung-Han Yoon,Tae-Ho Kim 한국육종학회 2013 한국육종학회 심포지엄 Vol.2013 No.07
In order to find new genetic sources of rice salt tolerance, we did screening with about 10,000 rice mutant lines created by Ac/Ds insertional mutagenesis. First, we raised rice seedlings with media soil on 0.7% NaCl solution and selected 71 putative salt tolerant lines and analyzed their Ds insertion sites. We tested their salt tolerance by growing seedlings on MS medium containing, 0 mM, 150 mM, and 250 mM NaCl. Also, their seedling salt tolerance were evaluated by growing on Yoshida nutritional solution containing 0.6% NaCl. Finally, we selected eight mutant lines showing increased seedling salt tolerance compared with wild type variety, Dongjin, repeatedly. We grow them in rice field and investigated their agronomic traits such as heading time, culm length, panicle length, and panicles per hill. Among them two lines which were named Salt10 and Salt23 and showed favorable agronomic characteristics were crossed with Dongjin for further genetic analysis and mapping the causative gene variation.