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Intraoperative radiofrequency ablation with or without tumorectomy for hepatocellular carcinoma in locations difficult for a percutaneous approach

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Hepatobiliary & Pancreatic Diseases International 2009年第6期8卷 591-596页

作者： Hyung Ook kim Seung Kwon kim Byung Ho Son Chang Hak Yoo Hyun Pyo Hong Yong Kyun Cho Byung ik kim Departments of Surgery Kangbuk Samsung Hospital Sungkyunkwan University School of Medicine Radiology Kangbuk Samsung Hospital Sungkyunkwan University School of Medicine Division of Interventional Radiology Mallinckrodt Institute of RadiologyWashington University School of Medicine Internal Medicine Kangbuk Samsung Hospital Sungkyunkwan University School of Medicine

BACKGROUND:Although hepatic resection is widely accepted as a proper modality for treating hepatocellular carcinoma(HCC),a majority of patients are unable to undergo surgical resection due to various tumor and patient *** ablation(RFA)has mostly been used as a therapeutic alternative to resection for treating *** objective of this study was to evaluate the results of intraoperative RFA for HCCs in locations difficult for a percutaneous ***:Eight patients(male,seven;age,49-67 years) with 8 HCCs in difficult locations were treated by intraoperative *** of the patients had local tumor progression after initial transarterial chemoembolization or ultrasound(US)guided percutaneous *** locations of the tumors were hepatic dome in six patients,posterior subcapsule in one,and caudate lobe in *** tumor size was 2.0 to 6.4 cm(mean,3.9 cm).Intraoperative RFA was performed at the tumor itself and an anticipated resection line under US guidance with 3 cm monopolar single or clustered internally cooled *** resection was performed in six *** month later,treatment response was assessed by contrast material-enhanced computed tomography(CT).CT studies were performed every 2 or 3 months after ***:RFA was technically successful in all tumors,and the contrast-enhanced CT images acquired one month later showed complete disappearance of tumor *** pneumothorax *** a median follow-up of 18 months(range,6-30 months),no tumors showed local *** the follow-up period,four new recurrent tumors were observed in three *** patients were alive at the time of this report and the other four died of hepatorenal syndrome,liver failure,and progression of new recurrent ***:Intraoperative RFA with tumor resection can be an alterative treatment option for HCC in locations difficult for a percutaneous approach.

关键词： hepatocellular carcinoma radiofrequency ablation intraoperative

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Metabolic syndrome is associated with erosive esophagitis

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World Journal of Gastroenterology 2008年第35期14卷 5442-5447页

作者： Jung Ho Park Dong IL Park Hong Joo kim Yong Kyun Cho Chong IL Sohn Woo Kyu Jeon Byung ik kim Department of Medicine Kangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoulSouth Korea

AIM： To clarify whether insulin resistance and metabolic syndrome are risk factors for erosive esophagitis.METHODS： A case-control study was performed using the database of the Kangbuk Samsung Hospital Medical Screening Center.RESULTS： A total of 1679 cases of erosive esophagitis and 3358 randomly selected controls were included. Metabolic syndrome was diagnosed in 21% of the cases and 12% of the controls （P 〈 0.001）. Multiple logistic regressions confirmed the association between erosive esophagitis and metabolic syndrome （Odds ratio, 1.25; 95% CI, 1.04-1.49）. Among the components of metabolic syndrome, increased waist circumference, elevated serum triglyceride levels and hypertension were significant risk factors for erosive esophagitis （all P 〈 0.01）. Furthermore, increased insulin resistance （Odds ratio, 0.91; 95% CI, 0.85-0.98） and fatty liver, as diagnosed by ultrasonography （odds ratio, 1.39; 95% CI, 1.20-1.60）, were also related to erosive esophagitis even afl：er adjustment for a series of confounding factors.CONCLUSION： Metabolic syndrome and increased insulin resistance are associated with an increased risk of developing erosive esophagitis.

关键词： Metabolic syndrome Erosive esophagitis Insulin resistance Fatty liver

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Efficacy of 0.5-L vs 1-L polyethylene glycol containing ascorbic acid as additional colon cleansing methods for inadequate bowel preparation as expected by last stool examination before colonoscopy

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World Journal of Clinical Cases 2019年第1期7卷 39-48页

作者： Joon Hyun Cho Eun Joo Goo Kyeong Ok kim Si Hyung Lee Byung ik Jang Tae Nyeun kim Division of Gastroenterology and Hepatology Department of Internal Medicine Yeungnam University College of Medicine

BACKGROUND No consensus has been reached in patients suspected of having inadequate bowel preparation regarding optimal salvage methods, which negatively affects the efficacy and quality of colonoscopy. The most ideal and reasonable rescue option involves early suspicion and identification of patients with inadequate preparation before sedation, additional oral ingestion of a suitable preparation formulation, and same-day *** To compare 0.5-L and 1-L polyethylene glycol containing ascorbic acid(PEG +Asc) as additional bowel cleansing methods after a 2-L split-dose PEG + Asc regimen in patients with expected inadequate bowel preparation before *** Individuals with expected inadequate bowel preparation based on last stool form, such as turbid liquid, particulate liquid, or liquid with small amounts of feces, were randomized to either a 0.5-L PEG + Asc group or a 1-L PEG + Asc group. The primary endpoint was bowel preparation as assessed using the Aronchick bowel preparation scale(ABPS) and Boston bowel preparation scale(BBPS) scores. The secondary endpoints were cecal intubation time, withdrawal time, polyp detection rate(PDR), adenoma detection rate(ADR), individual compliance with additional PEG + Asc, and patient *** Initially, 98 patients were included, but 8 were later excluded due to withdrawal of consent to participate in the study. Adequate bowel preparation(as assessed by ABPS) was observed in 80.9%(38/47) of subjects in the 0.5-L group and in88.4%(38/43) of subjects in the 1-L group(P = 0.617). Mean total BBPS was 6.7 points in the 0.5-L group and 7.0 points in the 1-L group(P = 0.458). ADRs and PDRs were similar in the two groups, and cecal intubation and withdrawal times were not significantly different. However, mean patient satisfaction score was significantly higher in the 0.5-L group(P = 0.041).CONCLUSION The bowel cleaning efficacy of additional 0.5-L PEG + Asc was not inferior to that of 1-L PEG + Asc. Add

关键词： Inadequate bowel preparation Additional colon cleansing Colonoscopy Polyethylene glycol

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Usefulness of magnifying endoscopy for iodine-unstained lesions in a high-risk esophageal cancer population

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World Journal of Gastroenterology 2010年第37期16卷 4709-4715页

作者： ik Seong Choi Jae Young Jang Won Young Cho Tae Hee Lee Hyun Gun kim Bo Young Lee Soung Won Jeong Joo Young Cho Joon Seong Lee So Young jin Institute for Digestive Research SoonChunHyang University College of Medicine

AIM: To investigate the usefulness of magnified observations of iodine-unstained esophageal lesions in the histological diagnosis of esophageal mucosa abnormalities, in high-risk esophageal cancer groups. METHODS: The subjects included 38 patients who had at least one of the four criteria known to be highrisk factors for esophageal cancer. Following endoscopic observation, magnified observations were performed on iodine-unstained lesions of the esophagus. The total number of lesions was 43. These lesions were classified as type A (clear papilla), type B (fused papilla), and type C (non-visible papilla) according to the findings. Tissue biopsy was then carried out. Finally the histological findings were graded in terms of histological factors, and their relationships were compared. RESULTS: Of the 43 lesions, 11 were type A, 17 were type B, and 15 were type C under magnifying endoscopy. Histological findings such as inflammatory cell infiltration and basal cell hyperplasia were significantly increased in type B and type C lesions compared with type A lesions (P < 0.05). Low-grade esophageal dysplasia was apparent in 1 (9%) of 11 type A lesions, in 3 (18%) of 17 type B lesions, and in 6 (40%) of 15 type C lesions, with the highest rate in type C. CONCLUSION: Magnified observations of the esophagus, classified by papillary aspects using magnifying endoscopy of iodine-unstained lesions in high-risk esophageal cancer groups, are considered useful in estimating dysplasia and inflammation of esophageal mucosa.

关键词： Esophageal cancer Iodine Magnifying endoscopy

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Interface properties and phase formation between surface coated SKD61 and aluminum alloys

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中国有色金属学会会刊：英文版 2009年第4期19卷 875-878页

作者： Se-Weon CHOI Young-Chan kim Se-Hun CHANG ik-Hyun OH Joon-Sik PARK Chang-Seog KANG Automotive Components Center Korea Institute of Industrial Technology Division of Advanced Materials Engineering Hanbat National University

The intermediate phase formation and surface protection effects between SKD61 die mold alloys and aluminum alloys were investigated during a simulated die-casting *** surface coatings of SKD61 alloy were carried out via Si pack cementation coatings at 900 ℃ for 10 h and the ε-FeSi phase *** the coated SKD61 alloy was dipped in the liquid aluminum alloy(ALDC12),the surface coated SKD61 alloys showed better surface properties compared with uncoated SKD61 alloys,i.e.,the intermediate phases(FeSiAl compound) were not produced for the coated SKD61 *** coating layer of ε-FeSi served as a diffusion barrier for the formation of FeSiAl compounds.

关键词：表面涂层铝合金接口特性表面合金涂层表面保护合金生产化合物中间相

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Extending the nuclear chart by continuum:From oxygen to titanium

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Science China(Physics,Mechanics & Astronomy) 2013年第11期56卷 2031-2036页

作者： QU XiaoYing CHEN Ying ZHANG ShuangQuan ZHAO PengWei SHIN ik Jae LIM Yeunhwan kim Youngman MENG Jie College of Science Guizhou Minzu University School of Physics and Nuclear Energy Engineering Beihang University State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking University Rare Isotope Science Project Institute for Basic Science Department of Physics Education Daegu University Department of Physics University of Stellenbosch

Nuclear masses ranging from O to Ti isotopes are systematically investigated with relativistic continuum Hartree-Bogoliubov(RCHB)theory,which can provide a proper treatment of pairing correlations in the presence of the *** O to Ti isotopes,there are 402 nuclei predicted to be bound by the density functional *** the 234 nuclei with mass measured,the root mean square(rms)deviation is 2.23 *** is found that the proton drip-lines predicted with various mass models are roughly the same and basically agree with the *** neutron drip-lines predicted,however,are quite *** to the continuum couplings,the neutron drip-line nuclei predicted are extended further neutron-rich than other mass *** comparison with finite-range droplet model(FRDM),the neutron drip-line nucleus predicted by RCHB theory has respectively2(O),10(Ne),10(Na),6(Mg),8(Al),6(Si),8(P),6(S),14(K),10(Ca),10(Sc),and 12(Ti)more neutrons.

关键词： relativistic continuum Hartree-Bogouliubov theory nuclear mass table O to Ti isotopes

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Targeted knockout of duox causes defects in zebrafish growth, thyroid development, and social interaction

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Journal of Genetics and Genomics 2019年第2期46卷 101-104页

作者： Jong-Su Park Tae-ik Choi Oc-Hee kim Ted Inpyo Hong Woo-Keun kim Won-Jae Lee Cheol-Hee kim Department of Biology Chungnam National University Biosystem Research Group Korea Institute of Toxicology School of Biological Sciences Seoul National University

Reactive oxygen species(ROS) are believed to be inevitable and toxic by-products produced during cellular respiration. However,several lines of evidence show that diverse extracellular signals can activate ROS product... 详细信息

关键词： KO In Targeted knockout of duox causes defects in zebrafish growth thyroid development and social interaction

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Defect engineering of ternary Cu-In-Se quantum dots for boosting photoelectrochemical hydrogen generation

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Carbon Energy 2023年第12期5卷 215-228页

作者： Shi Li Sung-Mok Jung Wookjin Chung Joo-Won Seo Hwapyong kim Soo ik Park Hyo Cheol Lee Ji Su Han Seung Beom Ha In Young kim Su-Il In Jae-Yup kim Jiwoong Yang Department of Energy Science and Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)DaeguRepublic of Korea Department of Chemical Engineering Dankook UniversityYonginRepublic of Korea Department of Chemistry and Nanoscience College of Natural ScienceEwha Womans UniversitySeoulRepublic of Korea Energy Science and Engineering Research Center Daegu Gyeongbuk Institute of Science and Technology(DGIST)DaeguRepublic of Korea

Heavy-metal-free ternary Cu–In–Se quantum dots(CISe QDs)are promising for solar fuel production because of their low toxicity,tunable band gap,and high light absorption *** defects significantly affect the photophysical properties of QDs,the influence on photoelectrochemical hydrogen production is not well ***,we present the defect engineering of CISe QDs for efficient solar-energy *** acid–base reactions between metal halide–oleylamine complexes and oleylammonium selenocarbamate are modulated to achieve CISe QDs with the controlled amount of Cu vacancies without changing their *** them,CISe QDs with In/Cu=1.55 show the most outstanding photoelectrochemical hydrogen generation with excellent photocurrent density of up to 10.7 mA cm-2(at 0.6 VRHE),attributed to the suitable electronic band structures and enhanced carrier concentrations/lifetimes of the *** proposed method,which can effectively control the defects in heavy-metal-free ternary QDs,offers a deeper understanding of the effects of the defects and provides a practical approach to enhance photoelectrochemical hydrogen generation.

关键词： copper-indium-selenide defect engineering photoelectrochemical hydrogen generation quantum dots solar hydrogen

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Tailoring uniform γ-MnO2 nanosheets on highly conductive three-dimensional current collectors for high-performance supercapacitor electrodes

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Nano Research 2015年第3期8卷 990-1004页

作者： Sangbaek Park Hyun-Woo Shim Chan Woo Lee Hee Jo Song ik Jae Park Jae-Chan kim Kug Sun Hong Dong-Wan kim Department of Materials Science and Engineering Seoul National University Seou1151-744 R. O. Korea School of Civil Environmental and Architectural Engineering Korea University Seou1136-713 R. O. Korea

Recent efforts have focused on the fabrication and application of three- dimensional （3-D） nanoarchitecture electrodes, which can exhibit excellent electrochemical performance. Herein, a novel strategy towards the design and synthesis of size- and thickness-tunable two-dimensional （2-D） MnO2 nanosheets on highly conductive one-dimensional （l-D） backbone arrays has been developed via a facile, one-step enhanced chemical bath deposition （ECBD） method at a low temperature （-50 ℃）. Inclusion of an oxidizing agent, BrO3-, in the solution was crucial in controlling the heterogeneous nucleation and growth of the nanosheets, and in inducing the formation of the tailored and uniformly arranged nanosheet arrays. We fabricated supercapacitor devices based on 3-D MnO2 nanosheets with conductive Sb-doped SnO2 nanobelts as the backbone. They achieved a specific capacitance of 162 F·g-1 at an extremely high current density of 20 A·g% and good cycling stability that shows a capacitance retention of -92% of its initial value, along with a coulombic efficiency of almost 100% after 5,000 cycles in an aqueous solution of I M Na2SO4. The results were attributed to the unique hierarchical structures, which provided a short diffusion path of electrolyte ions by means of the 2-D sheets and direct electrical connections to the current collector by 1-D arrays as well as the prevention of aggregation by virtue of the well-aligned 3-D structure.

关键词： nanosheets manganese oxide chemical bath deposition SnO2 nanobelts supercapacitor

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Association between Helicobacter pylori status and metachronous gastric cancer after endoscopic resection

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World Journal of Gastroenterology 2016年第44期22卷 9794-9802页

作者： Sung Bum kim Si Hyung Lee Seung Il Bae Yo Han Jeong Se Hoon Sohn Kyeong Ok kim Byung ik Jang Tae Nyeun kim Department of Internal Medicine Yeungnam University College of Medicine

AIM To investigate the effect of Helicobacter pylori(H. pylori) status test and H. pylori eradication on the occurrence of metachronous gastric cancer(MGC) after endoscopic submucosal dissection(ESD) of early gastric cancer(EGC) and risk factors of MGC. METHODS The authors retrospectively reviewed the medical records of 433 patients(441 lesions) who underwent ESD for EGC from January 2005 to January 2015 in Yeungnam University Hospital. Patients were categorized into two groups; the H. pylori tested group(n = 257) and the H. pylori non-tested group(n = 176) based on performance of H. pylori status test after ESD of EGC. The H. pylori tested group was further categorized into three subgroups based on H. pylori status; the H. pylori-eradicated subgroup(n = 120), the H. pylori-persistent subgroup(n = 42), and the H. pylori-negative subgroup(n = 95). Incidences of MGC and risk factors of MGC were *** Median follow-up duration after ESD was 30.00 mo(range, 6-107 mo). Total 15 patients developed MGC during follow-up. MGC developed in 11 patients of the H. pylori tested group(7 in the H. pylori-negative subgroup, 3 in the H. pylori-eradicated subgroup, and 1 in the H. pylori-persistent subgroup) and 4 patients of the H. pylori non-tested group(P > 0.05). The risk factors of MGC were endoscopic mucosal atrophy in the H. pylori tested group and intestinal metaplasia in all patients. CONCLUSION H. pylori eradication and H. pylori status test seems to have no preventive effect on the development of MGC after ESD for EGC. The risk factors of MGC development were endoscopic mucosal atrophy in the H. pylori tested group alone and intestinal metaplasia in all patients.

关键词： Metachronous gastric cancer Endoscopic submucosal dissection Helicobacter pylori

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