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Hepatic cyst misdiagnosed as a gastric submucosal tumor:A case report

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World Journal of Gastroenterology 2008年第19期14卷 3092-3094页

作者： joong-Min Park Jin Kim Ho-Il Kim Chong-suk Kim Department of Surgery Korea University College of Medicine

We describe here a case of 51-year-old woman with a symptomatic hepatic cyst that was misdiagnosed as a gastric submucosal tumor (SMT) with endoscopic ultrasound (EUS) and CT scan. The patient presented with an epigastric pain for two months. On endoscopy, a submucosal tumor was found on the cardia of the stomach. Based on EUS and abdominal CT scan, the lesion was diagnosed as a gastric duplication cyst or a gastrointestinal stromal tumor (GIST). The operative plan was laparoscopic wedge resection for the GIST of the gastric cardia. A cystic mass arising from the left lateral segment of the liver was found at the laparoscopic examination. There was no abnormal finding at the gastric cardia. She was treated by laparoscopic hepatic wedge resection including the hepatic cyst using an endoscopic linear stapler.

关键词： Hepatic cyst Submucosal tumor Stomach

The Southern Annular Mode(SAM) in PMIP2 Simulations of the last Glacial Maximum

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Advances in Atmospheric Sciences 2014年第4期31卷 863-878页

作者： Seong-joong KIM l Junmei Baek-Min KIM Korea Polar Research Institute KORDI Chinese Academy of Meteorological Sciences

The increasing trend of the Southern Annular Mode （SAM） in recent decades has influenced climate change in the Southem Hemisphere （SH）.How the SAM will respond increased greenhouse gas concentrations in the future remains *** the variability of the SAM in the past under a colder climate such as during the last Glacial Maximum （lGM） might provide some understanding of the response of the SAM under a future warmer *** analyzed the changes in the SAM during the lGM in comparison to pre-industrial （PI） simulations using five coupled ocean-atmosphere models （CCSM,FGOAlS,IPSl,MIROC,HadCM） from the second phase of the Paleoclimate Modelling Intercomparison Project （PMIP2）.In CCSM,MIROC,IPSl,and FGOAlS,the variability of the simulated SAM appears to be reduced in the lGM compared to the PI simulations,with a decrease in the standard deviation of the SAM ***,four out of the five models suggest a weaker SAM amplitude in the lGM consistent with a weaker SH polar vortex and westerly winds found in some proxy records and model *** weakening of the SAM in the lGM was associated with an increase in the vertical propagation of Rossby waves in southern high latitudes.

关键词： Southern Annular Mode last Glacial Maximum PMIP2 Southern Hemisphere westerly winds

Ordered SnO nanoparticles in MWCNT as a functional host material for high-rate lithium-sulfur battery cathode

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Nano Research 2017年第6期10卷 2083-2095页

作者： A-Young Kim Min Kyu Kim Ji Young Kim Yuren Wen lin Gu Van-Duong Dao Ho-suk Choi Dongjin Byun joong Kee lee Center for Energy Convergence Korea Institute of Science and Technology Seoul02792 Republic of Korea Department of Material Science and Engineering Korea University Seoul 02841 Republic of Korea Beijing National laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Beijing 100190 China Department of Chemical Engineering & Applied Chemistry Chungnam National University Daejeon 34134 Republic of Korea

lithium-sulfur battery has become one of the most promising candidates for next generation batteries, and it is still restricted due to the low sulfur conductivity, large volume expansion and severe polysulfide shuttling. Herein, we present a novel hybrid electrode with a ternary nanomaterial based on sulfur-impregnated multiwalled carbon nanotubes filled with ordered tin-monoxide nanoparticles （MWCNT-SnO/S）. Using a dry plasma reduction method, a mechanically robust material is prepared as a cathode host material for lithium-sulfur batteries. The MWCNT-SnO/S electrode exhibits high conductivity, good ability to capture polysulfides, and small volume change during a repeated charge-discharge process. In situ transmission electron microscopy and ultraviolet-visible absorption results indicate that the MWCNT-SnO host efficiently suppresses volume expansion during lithiation and reduces polysulfide dissolution into the electrolyte. Furthermore, the ordered SnO nanoparticles in the MWCNTs facilitate fast ion/electron transfer during the redox reactions by acting as connective links between the walls of the MWCNTs. The MWCNT-SnO/S cathode with a high sulfur content of 70 wt.% exhibits an initial discharge capacity of 1,682.4 mAh·g^-1 at 167.5 m·g^-1 （0.1 C rate） and retains a capacity of 530.1 mAh·g^-1 at 0.5 C after 1,000 cycles with nearly 100% Coulombic efficiency. Furthermore, the electrode exhibits the high capacity even at a high current rate of 20 C.

关键词： hybrid nanomaterial multiwalled carbonnanotube (MWCNT) ordered tin monoxide cathode high loading lithium-sulfur battery

Highly Elastic,Bioresorbable Polymeric Materials for Stretchable,Transient Electronic Systems

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Nano-Micro letters 2024年第6期16卷 1-13页

作者： Jeong‑Woong Shin Dong‑Je Kim Tae‑Min Jang Won Bae Han joong Hoon lee Gwan‑Jin Ko Seung Min Yang Kaveti Rajaram Sungkeun Han Heeseok kang Jun Hyeon lim Chan‑Hwi Eom Amay J.Bandodkar Hanul Min suk‑Won Hwang KU‑KIST Graduate School of Converging Science and Technology Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea SK Hynix 2091Gyeongchung‑daeroBubal‑eupIcheon‑siGyeonggi‑do 17336Republic of Korea Hanwha Systems Co. Ltd.188Pangyoyeok‑roBundang‑guSeongnam‑siGyeonggi‑do 13524Republic of Korea Department of Electrical and Computer Engineering North Carolina State UniversityRaleighNC 27606USA Center for Advanced Self‑Powered Systems of Integrated Sensors and Technologies(ASSIST) North Carolina State UniversityRaleighNC 27606USA Department of Integrative Energy Engineering Korea University145 Anam‑roSeongbuk‑guSeoul 02841Republic of Korea Biomaterials Research Center Korea Institute of Science and Technology(KIST)5 Hwarang‑ro 14‑gilSeongbuk‑guSeoul 02792Republic of Korea Semiconductor R&D Center Samsung Electronics Co.Ltd.Hwaseong‑siGyeonggi‑do 18448Republic of Korea Center for Advanced Biomolecular Recognition Biomedical Research DivisionKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea

Substrates or encapsulants in soft and stretchable formats are key components for transient,bioresorbable electronic systems;however,elastomeric polymers with desired mechanical and biochemical properties are very limited compared to nontransient ***,we introduce a bioresorbable elastomer,poly(glycolide-co-ε-caprolactone)(PGCl),that contains excellent material properties including high elongation-at-break(lience and toughness,and tunable dissolution *** of PGCls as polymer matrices,in combination with conducing polymers,yields stretchable,conductive composites for degradable interconnects,sensors,and actuators,which can reliably function under external *** of device components with wireless modules demonstrates elastic,transient electronic suture system with on-demand drug delivery for rapid recovery of postsurgical wounds in soft,time-dynamic tissues.

关键词： Biodegradable elastomer Conductive polymer composites Biomedical device Transient electronics

Massive hemothorax following internal jugular vein catheterization under ultrasound guidance:A case report

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World Journal of Clinical Cases 2022年第17期10卷 5776-5782页

作者： Hyun kang Soo Young Cho Eun Ha suk Wan Ju Joon Yong Choi Department of Anesthesiology and Pain Medicine Kwangju Christian HospitalGwangju 61661South Korea

BACKGROUND Hemothorax is a rare but life-threatening complication of central venous *** reports suggest that ultrasound guidance may reduce complications however,it does not guarantee safety CASE SUMMARY A 75-year-old male patient was admitted for laparoscopic radical *** ultrasound guidance,right internal jugular vein catheterization was successfully achieved after failure to aspirate blood from the catheter in the first *** hypotension developed after surgical positioning and persisted until the end of the operation,lasting for about 4 *** the recovery room,a massive hemothorax was identified on chest radiography and computed *** patient recovered following chest tube drainage of 1.6 l *** Hemothorax must be suspected when unexplained hemodynamic instability develops after central venous catheterization despite ultrasound *** the proper use of ultrasound is important.

关键词： Central venous catheterization Hemothorax Ultrasound guidance Internal jugular vein Case report

Performance and genetic diversity of 23 provenances of northern red oak(Quercus rubra l.)after 25 years of growth in South Korea

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Journal of Forestry Research 2021年第5期32卷 2181-2188页

作者： Ki-Won Kim Kyoung-Mi lee Soon-Ho Kwon Ji-Min Park Yang-Gil Kim Hye-In kang Da-Bin Yum Kyu-suk kang Department of Agriculture Forestry and BioresourcesSeoul National UniversitySeoul 08826Republic of Korea Department of Forest Bioresources National Institute of Forest ScienceSuwon 16631Republic of Korea Department of Plant Resource Research Korea National ArboretumPocheon 11186Republic of Korea Research Institute of Agriculture and life Sciences CALS_SNUSeoul 08826Republic of Korea

Growth traits and genetic diversity of 23 provenances of Quercus rubra introduced from North America were analyzed in a provenance trial established with a randomized block design in Hwaseong,Gyeonggi,South Korea in *** variables and survival at age 25 were compared with results from early ***,DBH,volume and stem straightness of *** was better than those of the domestic oak(Quercus accutissima).Growth of the Dunham Island provenance from New York was the best among the 23 provenances that of the Eagle River provenance from Wisconsin was *** rate at age25 was on average 52%.The longitude of seed origin and growth of provenance were consistently significantly negatively correlated at all *** of coastal provenances was superior to that of the inland provenances,which were separated by the Appalachian *** diversity and genetic distance among the provenances were evaluated using micro satellite *** allelic frequencies showed high polymorphism in 10 microsatellite loci,and 292 alleles were *** 10 loci,two were commonly found in the 23 *** mean allelic diversity and heterozygosity observed among the provenances were similar to those from the native populations of *** in North ***’s genetic distance among the 23 was estimated and showed that a clear trend between geographic and genetic distances,indicating that some provenances have high genetic diversity with superior growth performance.

关键词： Introduction breeding Provenance test Adaptation Microsatellite marker Genetic distance

Effects of irradiation on superconducting properties of small-grained MgB_(2) thin films

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Chinese Physics B 2023年第12期32卷 534-540页

作者：刘丽 Jung Min lee Yoonseok Han Jaegu Song Chorong Kim Jaekwon suk Won Nam kang 刘杰 Soon-Gil Jung Tuson Park Center for Quantum Materials and Superconductivity(CQMS) Sungkyunkwan UniversitySuwon 16419Republic of Korea Department of Physics Sungkyunkwan UniversitySuwon 16419Republic of Korea Institute of Modern Physics Chinese Academy of Sciences(CAS)Lanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of Sciences(UCAS)Beijing 100049China Korea Multi-purpose Accelerator Complex Korea Atomic Energy Research InstituteGyeongjuGyeongbuk 38180Republic of Korea Department of Physics Education Sunchon National UniversitySuncheon 57922Republic of Korea

We investigate the effect of ion irradiation on MgB_(2) thin films with small grains of approximately 122 nm and 140 *** flux pinning by grain boundaries is insignificant in the pristine MgB_(2) films due to good inter-grain connectivity,but is significantly improved after 120-keV Mn-ion *** scaling behavior of the flux pinning force density for the ion-irradiated MgB_(2) thin films with nanoscale grains demonstrates the predominance of pinning by grain boundaries,in contrast to the single-crystalline MgB_(2) films where normal point pinning was dominant after low-energy ion *** results suggest that irradiation-induced defects can accumulate near the grain boundaries in metallic MgB_(2) superconductors.

关键词： MgB_(2)films grain boundaries flux pinning low-energy ion irradiation

Efficacy of chemotherapy containing bevacizumab in patients with metastatic colorectal cancer according to programmed cell death ligand 1

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World Journal of Gastrointestinal Oncology 2024年第8期16卷 3521-3528页

作者： Shin Woo kang Sung Hee lim Min-Ji Kim Jeeyun lee Young suk Park Ho Yeong lim Won Ki kang Seung Tae Kim Division of Hematology Oncology Department of MedicineSamsung Medical CenterSungkyunkwan University School of MedicineSeoul 06351South Korea Samsung Biomedical Research Institute Samsung Medical CenterSeoul 06351South Korea

BACKGROUND Bevacizumab,an anti-vascular endothelial growth factor(VEGF)monoclonal antibody,inhibits angiogenesis and reduces tumor *** VEGF-C,lactate dehydrogenase,and inflammatory markers have been reported as predictive markers related to bevacizumab *** cell death ligand 1(PD-l1)could act upon VEGF receptor 2 to induce cancer cell angiogenesis and *** To investigate the efficacy of bevacizumab-containing chemotherapy in patients with metastatic colorectal cancer(CRC)according to the expression of *** This analysis included CRC patients who received bevacizumab plus FOlFOX or FOlFIRI as first-line therapy between June 24,2014 and February 28,2022,at Samsung Medical Center(Seoul,South Korea).Analysis of patient data included evaluation of PD-l1 expression by the combined positive score(CPS).We analyzed the efficacy of bevacizumab according to PD-l1 expression status in patients with *** A total of 124 patients was included in this *** all patients were treated with bevacizumab plus FOlFIRI or FOlFOX as the first-line *** 77%of patients received FOlFOX,23%received FOlFIRI as backbone first-line *** numbers of patients with a PD-l1 CPS of 1 or more,5 or more,or 10 or more were 105(85%),64(52%),and 32(26%),*** results showed no significant difference in progression-free survival(PFS)and overall survival(OS)with bevacizumab treatment between patients with PDl1 CPS less than 1 and those with PD-l1 CPS of 1 or more(PD-l1l1≥1%;PFS:P=0.93,OS:P=0.33),between patients with PD-l1 CPS less than 5 and of 5 or more(PD-l1l1≥5%;PFS:P=0.409,OS:P=0.746),and between patients with PD-l1 CPS less than 10 and of 10 or more(PD-l1l1≥10%;PFS:P=0.529,OS:P=0.568).CONClUSION Chemotherapy containing bevacizumab can be considered as first-line therapy in metastatic CRC irrespective of PD-l1 expression.

关键词： Bevacizumab Colorectal cancer Programmed cell death ligand 1 expression First-line chemotherapy Metastatic colorectal cancer

Brazilin and Caesalpinia sappan l. extract protect epidermal keratinocytes from oxidative stress by inducing the expression of GPX7

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Chinese Journal of Natural Medicines 2018年第3期16卷 203-209页

作者： Hyung Seo Hwang joong Hyun Shim Department of Oriental Cosmetic Science Semyung University

Caesalpinia sappan l., belonging to the family leguminosae, is a medicinal plant that is distributed in Southeast Asia. The dried heartwood of this plant is used as a traditional ingredient of food, red dyes, and folk medicines in the treatment of diarrhea, dysentery, tuberculosis, skin infections, and inflammation. Brazilin is the major active compound, which has exhibited various phar- macological effects, including anti-platelet activity, anti-hepatotoxicity, induction of immunological tolerance, and anti-inflammatory and antioxidant activities. The present study aimed to evaluate the antioxidant activity and expression of antioxidant enzymes of C. sappan l. extract and its major compound, brazilin, in human epidermal keratinocytes exposed to UVA irradiation. Our results indi- cated that C. sappan l. extract reduced UVA-induced H202 production via GPX7 activation. Moreover, brazilin exhibited anfioxidant effects that were similar to those of C. sappan l. via glutathione peroxidase 7 （GPX7）, suggesting that C. sappan l. extract and its natural compound represent potential treatments for oxidative stress-induced photoaging of skin.

关键词： Caesalpinia sappan l. Brazilin Ultraviolet GPX7 Antioxidative