1.Transradial Versus Transfemoral Access for Bifurcation Percutaneous Coronary Intervention Using SecondGeneration Drug-Eluting Stent
Jung-Hee LEE ; Young Jin YOUN ; Ho Sung JEON ; Jun-Won LEE ; Sung Gyun AHN ; Junghan YOON ; Hyeon-Cheol GWON ; Young Bin SONG ; Ki Hong CHOI ; Hyo-Soo KIM ; Woo Jung CHUN ; Seung-Ho HUR ; Chang-Wook NAM ; Yun-Kyeong CHO ; Seung Hwan HAN ; Seung-Woon RHA ; In-Ho CHAE ; Jin-Ok JEONG ; Jung Ho HEO ; Do-Sun LIM ; Jong-Seon PARK ; Myeong-Ki HONG ; Joon-Hyung DOH ; Kwang Soo CHA ; Doo-Il KIM ; Sang Yeub LEE ; Kiyuk CHANG ; Byung-Hee HWANG ; So-Yeon CHOI ; Myung Ho JEONG ; Hyun-Jong LEE
Journal of Korean Medical Science 2024;39(10):e111-
		                        		
		                        			 Background:
		                        			The benefits of transradial access (TRA) over transfemoral access (TFA) for bifurcation percutaneous coronary intervention (PCI) are uncertain because of the limited availability of device selection. This study aimed to compare the procedural differences and the in-hospital and long-term outcomes of TRA and TFA for bifurcation PCI using secondgeneration drug-eluting stents (DESs). 
		                        		
		                        			Methods:
		                        			Based on data from the Coronary Bifurcation Stenting Registry III, a retrospective registry of 2,648 patients undergoing bifurcation PCI with second-generation DES from 21 centers in South Korea, patients were categorized into the TRA group (n = 1,507) or the TFA group (n = 1,141). After propensity score matching (PSM), procedural differences, in-hospital outcomes, and device-oriented composite outcomes (DOCOs; a composite of cardiac death, target vessel-related myocardial infarction, and target lesion revascularization) were compared between the two groups (772 matched patients each group). 
		                        		
		                        			Results:
		                        			Despite well-balanced baseline clinical and lesion characteristics after PSM, the use of the two-stent strategy (14.2% vs. 23.7%, P = 0.001) and the incidence of in-hospital adverse outcomes, primarily driven by access site complications (2.2% vs. 4.4%, P = 0.015), were significantly lower in the TRA group than in the TFA group. At the 5-year follow-up, the incidence of DOCOs was similar between the groups (6.3% vs. 7.1%, P = 0.639). 
		                        		
		                        			Conclusion
		                        			The findings suggested that TRA may be safer than TFA for bifurcation PCI using second-generation DESs. Despite differences in treatment strategy, TRA was associated with similar long-term clinical outcomes as those of TFA. Therefore, TRA might be the preferred access for bifurcation PCI using second-generation DES. 
		                        		
		                        		
		                        		
		                        	
2. Dieckol isolated from Eisenia bicyclis extract suppresses RANKL-induced osteoclastogenesis in murine RAW 264.7 cells
Su-Hyeon CHO ; Hoibin JEONG ; Jin KIM ; Song-Rae KIM ; Myeong Seon JEONG ; Seonju PARK ; Miri CHOI ; Kil-Nam KIM ; Su-Hyeon CHO ; Juhee AHN ; Tae-Hyung KWON ; Jung-Hee WOO ; Kil-Nam KIM
Asian Pacific Journal of Tropical Biomedicine 2022;12(6):262-269
		                        		
		                        			
		                        			 Objective: To demonstrate the effect of dieckol from Eisenia bicyclis on osteoclastogenesis using RAW 264.7 cells. Methods: Murine macrophage RAW 264.7 cells were subjected to dieckol treatment, followed by treatment with receptor activator of nuclear factor kappa-B ligand (RANKL) to induce osteoclastogenesis. Tartrate-resistant acid phosphatase (TRAP) activity was examined using a TRAP activity kit. Western blotting analysis was conducted to examine the level of osteoclast- related factors, including TRAP and calcitonin receptor (CTR), transcriptional factors, including c-Fos, c-Jun, and nuclear factor of activated T cells cytoplasmic 1 (NFATc1), nuclear factor kappa-B (NF-κB), extracellular signal-regulated kinase (ERK), and c-Jun N-terminal kinase (JNK). Immunofluorescence staining was conducted to examine the expression of c-Fos, c-Jun, and NFATc1. Results: Among the four phlorotannin compounds present in Eisenia bicyclis, dieckol significantly hindered osteoclast differentiation and expression of RANKL-induced TRAP and CTR. In addition, dieckol downregulated the expression levels of c-Fos, c-Jun, NFATc1, ERK, and JNK, and suppressed NF-κB signaling. Conclusions: Dieckol can suppress RANKL-induced osteoclastogenesis. Therefore, it has therapeutic potential in treating osteoclastogenesis- associated diseases. 
		                        		
		                        		
		                        		
		                        	
3.Obesity Exacerbates Coxsackievirus Infection via Lipid-Induced Mitochondrial Reactive Oxygen Species Generation
Seong-Ryeol KIM ; Jae-Hyoung SONG ; Jae-Hee AHN ; Myeong Seon JEONG ; Yoon Mee YANG ; Jaewon CHO ; Jae-Hyeon JEONG ; Younggil CHA ; Kil-Nam KIM ; Hong Pyo KIM ; Sun-Young CHANG ; Hyun-Jeong KO
Immune Network 2022;22(2):e19-
		                        		
		                        			
		                        			 Coxsackievirus B3 (CVB3) infection causes acute pancreatitis and myocarditis. However, its pathophysiological mechanism is unclear. Here, we investigated how lipid metabolism is associated with exacerbation of CVB3 pathology using high-fat diet (HFD)-induced obese mice. Mice were intraperitoneally inoculated with 1×10 6 pfu/mouse of CVB3 after being fed a control or HFD to induce obesity. Mice were treated with mitoquinone (MitoQ) to reduce the level of mitochondrial ROS (mtROS). In obese mice, lipotoxicity of white adipose tissue-induced inflammation caused increased replication of CVB3 and mortality.The coxsackievirus adenovirus receptor increased under obese conditions, facilitating CVB3 replication in vitro. However, lipid-treated cells with receptor-specific inhibitors did not reduce CVB3 replication. In addition, lipid treatment increased mitochondria-derived vesicle formation and the number of multivesicular bodies. Alternatively, we found that inhibition of lipid-induced mtROS decreased viral replication. Notably, HFD-fed mice were more susceptible to CVB3-induced mortality in association with increased levels of CVB3 replication in adipose tissue, which was ameliorated by administration of the mtROS inhibitor, MitoQ. These results suggest that mtROS inhibitors can be used as potential treatments for CVB3 infection. 
		                        		
		                        		
		                        		
		                        	
4.Protective Effect of Brassica napus L. Hydrosols against Inflammation Response in RAW 264.7 Cells.
Su-Hyeon CHO ; Song Rae KIM ; Myeong Seon JEONG ; Miri CHOI ; SeonJu PARK ; Kil-Nam KIM
Chinese journal of integrative medicine 2021;27(4):273-279
		                        		
		                        			OBJECTIVE:
		                        			To demonstrate the anti-inflammatory activity of Brassica napus L. hydrosols (BNH) in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells.
		                        		
		                        			METHODS:
		                        			Composition analysis of BNH was conducted via gas chromatography-mass spectrometry after BNH were extracted. The nitric oxide (NO) production was measured using the Griess assay. Prostaglandin E
		                        		
		                        			RESULTS:
		                        			Compared with LPS-stimulated cells, BNH markedly decreased the generation of NO and PGE
		                        		
		                        			CONCLUSION
		                        			The anti-inflammatory activities of BNH were mediated via blockage of the NF-κB signaling pathways in LPS-stimulated RAW 264.7 cells.
		                        		
		                        		
		                        		
		                        	
5.First Report of Dieback Caused by Lasiodiplodia theobromae in Strawberry Plants in Korea.
Myeong Hyeon NAM ; Myung Soo PARK ; Hyun Sook KIM ; Tae il KIM ; Eun Mo LEE ; Jong Dae PARK ; Hong Gi KIM
Mycobiology 2016;44(4):319-324
		                        		
		                        			
		                        			Dieback in strawberry (Seolhyang cultivar) was first observed during the nursery season (June to September) in the Nonsan area of Korea in the years 2012 and 2013. Initial disease symptoms included dieback on runners, as well as black rot on roots, followed by wilting and eventually blackened, necrotic discoloration in the crowns of daughter plants. A fungus isolated from the diseased roots, runners, and crowns is close to Lasiodiplodia theobromae based on morphological characteristics. Analysis of a combined dataset assembled from sequences of the internal transcribed spacer and translation elongation factor 1-alpha genes grouped nine fungal isolates with the type strain of L. theobromae. The isolates showed strong pathogenicity on strawberry cultivars Kumhyang, Seolhyang, and Akihimae, fulfilling Koch's postulates. Based on these results, the pathogen responsible for dieback on strawberry plants in Korea was identified as L. theobromae.
		                        		
		                        		
		                        		
		                        			Chungcheongnam-do
		                        			;
		                        		
		                        			Crowns
		                        			;
		                        		
		                        			Dataset
		                        			;
		                        		
		                        			Fragaria*
		                        			;
		                        		
		                        			Fungi
		                        			;
		                        		
		                        			Korea*
		                        			;
		                        		
		                        			Nuclear Family
		                        			;
		                        		
		                        			Nurseries
		                        			;
		                        		
		                        			Peptide Elongation Factors
		                        			;
		                        		
		                        			Seasons
		                        			;
		                        		
		                        			Virulence
		                        			
		                        		
		                        	
6.Cladosporium cladosporioides and C. tenuissimum Cause Blossom Blight in Strawberry in Korea.
Myeong Hyeon NAM ; Myung Soo PARK ; Hyun Sook KIM ; Tae Il KIM ; Hong Gi KIM
Mycobiology 2015;43(3):354-359
		                        		
		                        			
		                        			Blossom blight in strawberry was first observed in a green house in Nonsan, Damyang, and Geochang areas of Korea, between early January to April of 2012. Disease symptoms started as a grey fungus formed on the stigma, which led to the blossom blight and eventually to black rot and necrosis of the entire flower. We isolated the fungi purely from the infected pistils and maintained them on potato dextrose agar (PDA) slants. To test Koch's postulates, we inoculated the fungi and found that all of the isolates caused disease symptoms in the flower of strawberry cultivars (Seolhyang, Maehyang, and Kumhyang). The isolates on PDA had a velvet-like appearance, and their color ranged between olivaceous-brown and smoky-grey to olive and almost black. The intercalary conidia of the isolates were elliptical to limoniform, with sizes ranging from 5.0~10.5 x 2.5~3.0 microm to 4.0~7.5 x 2.0~3.0 microm, respectively. The secondary ramoconidia of these isolates were 0- or 1-septate, with sizes ranging betweem 10.0~15.0 x 2.5~3.7 microm and 8.7~11.2 x 2.5~3.2 microm, respectively. A combined sequence analysis of the internal transcribed spacer regions, partial actin (ACT), and translation elongation factor 1-alpha (TEF) genes revealed that the strawberry isolates belonged to two groups of authentic strains, Cladosporium cladosporioides and C. tenuissimum. Based on these results, we identified the pathogens causing blossom blight in strawberries in Korea as being C. cladosporioides and C. tenuissimum.
		                        		
		                        		
		                        		
		                        			Actins
		                        			;
		                        		
		                        			Agar
		                        			;
		                        		
		                        			Chungcheongnam-do
		                        			;
		                        		
		                        			Cladosporium*
		                        			;
		                        		
		                        			Flowers*
		                        			;
		                        		
		                        			Fragaria*
		                        			;
		                        		
		                        			Fungi
		                        			;
		                        		
		                        			Glucose
		                        			;
		                        		
		                        			Korea*
		                        			;
		                        		
		                        			Necrosis
		                        			;
		                        		
		                        			Olea
		                        			;
		                        		
		                        			Peptide Elongation Factors
		                        			;
		                        		
		                        			Sequence Analysis
		                        			;
		                        		
		                        			Solanum tuberosum
		                        			;
		                        		
		                        			Spores, Fungal
		                        			
		                        		
		                        	
7.Genetic Diversity and Pathogenicity of Cylindrocarpon destructans Isolates Obtained from Korean Panax ginseng.
Jeong Young SONG ; Mun Won SEO ; Sun Ick KIM ; Myeong Hyeon NAM ; Hyoun Sub LIM ; Hong Gi KIM
Mycobiology 2014;42(2):174-180
		                        		
		                        			
		                        			We analyzed the genetic diversity of Cylindrocarpon destructans isolates obtained from Korean ginseng (i.e., Panax ginseng) roots by performing virulence tests and nuclear ribosomal gene internal transcribed spacer (ITS) and mitochondrial small subunit (mt SSU) rDNA sequence analysis. The phylogenetic relationship analysis performed using ITS DNA sequences and isolates from other hosts helped confirm that all the Korean C. destructans isolates belonged to Nectria/Neonectria radicicola complex. The results of in vivo and ex vivo virulence tests showed that the C. destructans isolates could be divided into two groups according to their distinctive difference in virulence and the genetic diversity. The highly virulent Korean isolates in pathogenicity group II (PG II), together with foreign isolates from P. ginseng and P. quinquefolius, formed a single group. The weakly virulent isolates in pathogenicity group I, together with the foreign isolates from other host plants, formed another group and exhibited a greater genetic diversity than the isolates of PG II, as confirmed by the mt SSU rDNA sequence analysis. In addition, as the weakly virulent Korean isolates were genetically very similar to the foreign isolates from other hosts, they were likely to originate from hosts other than the ginseng plants.
		                        		
		                        		
		                        		
		                        			Base Sequence
		                        			;
		                        		
		                        			DNA, Ribosomal
		                        			;
		                        		
		                        			Genetic Variation*
		                        			;
		                        		
		                        			Panax*
		                        			;
		                        		
		                        			Sequence Analysis
		                        			;
		                        		
		                        			Virulence*
		                        			
		                        		
		                        	
8.Laboratory Evaluation of Automated Urine Analyzer ComboStick Reader 720(R) and Reagent Strip ComboStick 10.
Min Jung KWON ; Hyup Woo LEE ; Ga Yeong KIM ; Myeong Hyeon NAM ; Chang Kyu LEE ; Young Kee KIM
Journal of Laboratory Medicine and Quality Assurance 2009;31(1):215-223
		                        		
		                        			
		                        			BACKGROUND: The ComboStick Reader 720(R)(DFI Co., Ltd. Korda) is a newly developed automated urine analyzer. The objective of this analysis was to evaluate the analytical performance of the Combostick Reader 720 and ComboStick 10 reagent strips and to compare the results using the Uriscan Pro II and Uriscan Gen 10 SGL strips (YD Diagnostics, Korea). METHODS: The Dipstick urinalyses were performed on a ComboStick Reader 720(R) using ComboStick 10 strips and on a Uriscan Pro II(R) using Uriscan 10 SGL strips. Precision was evaluated with commercial control materials. The sets of results were analyzed for concordance with weighted kappa values or intraclass correlation coefficients (ICCs). The microscopic urine analysis was carried out to confirm the results from both automated urine analyzers. Agreement between the dipstick methods and the microscopic method was evaluated by kappa values and the McNemar test. RESULTS: Within and between-run precisions of the ComboStick Reader 720(R) were 90.0% to 100%. A comparison of results from 1,700 urine samples using the ComboStick Reader 720(R) and Uriscan Pro II(R) revealed a very high concordance rate of > or = 91.0% on consideration of neighboring blocks for all analytes of the dipstick urinalysis. There was a good association between the microscopic method and the dipstick methods of the two automated urine analyzers. The ComboStick Reader 720(R) revealed a statistically higher degree of agreement for leukocytes. CONCLUSIONS: The ComboStick Reader 720(R) and ComboStick 10 strips showed good precisions and revealed a statistically significant agreement with the Uriscan Pro II(R) and Uriscan 10 SGL strips. For leukocytes, the ComboStick Reader 720(R) was superior to the Uriscan Pro II(R) in comparing the agreement between the microscopic and dipstick methods. The overall performance of the ComboStick Reader 720(R) and ComboStick 10 strips were satisfactory.
		                        		
		                        		
		                        		
		                        			Leukocytes
		                        			;
		                        		
		                        			Reagent Strips
		                        			;
		                        		
		                        			Urinalysis
		                        			
		                        		
		                        	
9.Children and Parental Factors Affecting Cholesterol Levels of First-grade Students in Elementary School in Gwacheon.
Seol Whee ROH ; Sun Young LEE ; Kyu Nam KIM ; Hyeon Keun KIM ; Sun Mi YOO ; Jae Heon KANG ; Ji Hyun SONG ; Myeong Ho JUNG
Journal of the Korean Academy of Family Medicine 2007;28(10):754-761
		                        		
		                        			
		                        			BACKGROUND: Hypercholesterolemia is a risk factor of cardiovascular diseases and metabolic syndrome. Cholesterol level in childhood is related to the development of cardiovascular diseases in adulthood. This study aimed to investigate cholesterol levels of first grade students in elementary school, to analyze the relationship between the children's cholesterol levels and those of parents' and to evaluate the factors influencing children's cholesterol levels. METHODS: In 2004, a sample of 108 first-graders in elementary school in Gwacheon city and their 216 parents were included in this study. Height, weight, body mass index, waist and hip circumference and blood pressure were measured and bio-chemical data were obtained. The children's birth weight, eating habits, physical activity, occupation, educational background, married status, mean monthly income of each family were obtained by questionnaire. RESULTS: The correlation coefficient between children's cholesterol and fathers' cholesterol was 0.331 (P<0.001). The correlation coefficient between children's cholesterol and mothers' cholesterol was 0.364 (P<0.001). The mean total cholesterol level in children differed significantly according to mother's smoking status, mother's overeating due to stress and mother's diet restriction tendency for weight control. In multiple linear regression analysis of children's cholesterol as dependent variable, the explanation power (R(2)) of the model including children's sex, father's age and cholesterol levels, mother's age and cholesterol levels was 0.281. The explanation power (R(2)) of the other model including variables of the previous model and children's fruit consumption, parent's eating out tendency, mother's smoking status, mother's other behavior during mealtime, mother's overeating due to stress and mother's diet restriction tendency for weight control was 0.388. In final model, only the parent's cholesterol levels had significant effect on children's cholesterol levels. CONCLUSION: It was parent's cholesterol level that affected significantly on the children's cholesterol level.
		                        		
		                        		
		                        		
		                        			Birth Weight
		                        			;
		                        		
		                        			Blood Pressure
		                        			;
		                        		
		                        			Body Weight
		                        			;
		                        		
		                        			Cardiovascular Diseases
		                        			;
		                        		
		                        			Child*
		                        			;
		                        		
		                        			Cholesterol*
		                        			;
		                        		
		                        			Diet
		                        			;
		                        		
		                        			Eating
		                        			;
		                        		
		                        			Fruit
		                        			;
		                        		
		                        			Gyeonggi-do*
		                        			;
		                        		
		                        			Hip
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Hypercholesterolemia
		                        			;
		                        		
		                        			Hyperphagia
		                        			;
		                        		
		                        			Linear Models
		                        			;
		                        		
		                        			Meals
		                        			;
		                        		
		                        			Motor Activity
		                        			;
		                        		
		                        			Occupations
		                        			;
		                        		
		                        			Parents*
		                        			;
		                        		
		                        			Risk Factors
		                        			;
		                        		
		                        			Smoke
		                        			;
		                        		
		                        			Smoking
		                        			;
		                        		
		                        			Surveys and Questionnaires
		                        			
		                        		
		                        	
10.Mode of Onset of Paroxysmal Atrial Fibrillation during 24 hour Holter Monitoring.
Weon Jung JEON ; Jeong Chul SEO ; Hainan PIAO ; Gi Byoung NAM ; Kang Hyeon CHOE ; Seogjae LEE ; Jong Myeon HONG ; Dong Woon KIM ; Myeong Chan CHO
Korean Circulation Journal 2000;30(4):457-467
		                        		
		                        			
		                        			BACKGROUND: Paroxysmal atrial fibrillation (PAF) causes not only severe symptoms and hemodynamic changes, but may progress to chronic atrial fibrillation. Autonomic nervous system or atrial premature beat (APB) has been suggested to contribute to the spontaneous initiation of PAF, but the exact mechanism has been largely unknown. METHODS: One hundred and twenty nine episodes of PAF lasting longer than 5 sec were analyzed in 18 patients (M:F=11:?). Two minutes of normal sinus rhythm before the onset of PAF, and the initial one minute of PAF were printed and analyzed.  RESULTS: Most of PAFs were initiated by APBs (38%) or rapid atrial tachycardias (AT, 59%). The frequency of APBs tended to increase immediately before PAF onset (p=0.08). The coupling intervals and coupling indices were not significantly different between PAF-producing APBs and benign APBs. More than half of PAF episodes were initiated by rapid ATs (rate, 357+/-50 bpm). After the onset, they accelerated over several seconds and then degenerated into AF. In some cases, transition from AF to atrial flutter and vice versa were observed. Heart rate, measured at 60-second intervals during 2 minutes before PAF onset, did not change significantly (p=0.44). CONCLUSION: Most of PAFs were initiated by APBs or rapid ATs. Heart rate did not change significantly but the frequency of APBs tended to increase immediately before PAF onset. Rapid ATs frequently accelerated and degenerated into AF. In this regard, Holter monitoring could be useful in identifying patients with PAF triggered by rapid ATs.
		                        		
		                        		
		                        		
		                        			Atrial Fibrillation*
		                        			;
		                        		
		                        			Atrial Flutter
		                        			;
		                        		
		                        			Autonomic Nervous System
		                        			;
		                        		
		                        			Cardiac Complexes, Premature
		                        			;
		                        		
		                        			Electrocardiography, Ambulatory*
		                        			;
		                        		
		                        			Heart Rate
		                        			;
		                        		
		                        			Hemodynamics
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Tachycardia
		                        			
		                        		
		                        	
            
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