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Gender-and Age-Group Specific Association of Persistent Organic Pollutants(POPs)Exposure with Diabetes Mellitus:Korean National Environmental Health Survey(KoNEHS)2015−2017

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Environment & Health 2024年第5期2卷 322-331页

作者： Inae Lee Min joo Kim Sohyeon Choi young joo park Jeongim park Gökçe Nur Ayaz Gowoon Lee Yoon Hee Cho Hye Li Jeon Chulwoo Lee Gi Jeong Cheon Min Kyong Moon Kyungho Choi Graduate School of Public Health Seoul National UniversitySeoul 08826Republic of Korea Institute of Health and Environment Seoul National UniversitySeoul 08826Republic of Korea Department of Internal Medicine Seoul National University College of MedicineSeoul 03080Republic of Korea Seoul National University Hospital Healthcare System Gangnam Center Seoul 06236Republic of Korea Department of Environmental Health Sciences Soonchunhyang UniversityAsan 31538Republic of Korea Department of Molecular Medicine and Biopharmaceutical Sciences Graduate School of Convergence Science and TechnologySeoul National UniversitySeoul 08826Republic of Korea Center for Environmental Health Sciences Department of Biomedical and Pharmaceutical SciencesUniversity of MontanaMissoulaMontana 59812United States Environmental Health Research Division National Institute of Environmental ResearchMinistry of EnvironmentIncheon 22689Republic of Korea Department of Nuclear Medicine Seoul National University College of MedicineSeoul 03080Republic of Korea Division of Endocrinology Department of Internal MedicineSeoul National University Boramae Medical CenterSeoul 07061Republic of Korea

Exposure to persistent organic pollutants(POPs)has been reported as a potential risk factor for diabetes in ***,effect modifications by sex and age,especially among Asian populations,have seldom been *** the present study,we assessed associations of major POPs exposure including organochlorine pesticides(OCPs),polychlorinated biphenyls(PCBs),and polybrominated diphenyl ethers(PBDEs),with diabetes in Korean adults(n=1,295),a subset of the Korean National Environmental Health Survey(KoNEHS)Cycle 3(2015−2017).In the adult population,serum levels of dichlorodiphenyltrichloroethanes(DDTs)and PCB167 showed an increased odds ratio(OR)for *** stratified by gender,associations became stronger and more consistent in women:In women,serum levels of OCPs including p,p′-DDT,p,p′-dichlorodiphenyldichloroethylene(p,p′-DDE),andΣOCPs and mono-ortho PCBs,such as PCB118 and PCB157,were significantly associated with *** the male participants,however,no significant positive associations were *** stratified by a cutoff age of 50 years,most studied POPs except PBDEs,i.e.,p,p′-DDT,p,p′-DDE,PCB118,PCB157,PCB167,PCB138,and PCB153,showed significant associations with diabetes,in the older *** the younger group,however,no measured POPs showed a significant positive *** of endogenous sex hormones or interaction of POPs on aryl hydrocarbon receptors may partly explain the observed differences by gender and age,although further experimental confirmations should *** findings show that POPs exposure at the current levels is associated with diabetes among general Korean adults,and such associations could be modified by gender and age.

关键词： persistent organic pollutants diabetes age gender toxicity equivalency factor

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Identifying Driver Genes Mutations with Clinical Significance in Thyroid Cancer

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Computers, Materials & Continua 2021年第4期67卷 1241-1251页

作者： Hyeong Won Yu Muhammad Afzal Maqbool Hussain Hyungju Kwon young joo park June young Choi Kyu Eun Lee Department of Surgery Seoul National University Bundang HospitalSeongnam-siKorea Department of Software Sejong UniversitySeoulKorea Department of Surgery College of MedicineEwha Womans UniversitySeoulKorea Department of Internal Medicine Seoul National University Hospital and College of MedicineSeoulKorea Department of Surgery Seoul National University Hospital and College of MedicineSeoulKorea

Advances in technology are enabling gene mutations in papillary thyroid carcinoma(PTC)to be analyzed and clinical outcomes,such as recurrence,to be *** date,the most common genetic mutation in PTC is in BRAF kinase(BRAF).However,whether mutations in other genes coincide with those in BRAF remains to be *** aim of this study was to find mutations in other genes that co-exist with mutated BRAF,and to analyze their frequency and clinical relevance in *** and genetic data were collected from 213 PTC patients with a total of 36,572 mutation sites in 735 *** matching with genes from PTC entries in a global database(NCBI Gene),69 genes with mutations in coding regions were chosen for further *** frequency-based analysis,we identified commonly mutated genes co-existing with mutated BRAF and,using the mutation count correlation matrix(MCCM)method,analyzed their incidence according to age and *** designed Chord diagrams to reveal gene relationships concerning age and gender,and found that mutations in ALK,ATM,COL1A1,MSTIR,PRKCA,and WNK1 most commonly coincide with mutated BRAF,followed by APC,AURKA,and *** findings provide further insight into the genetic profile of PTC.

关键词： Medical informatics papillary thyroid carcinoma cancer gene mutation analysis BRAF clinical significance

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Primary needle-knife fistulotomy for preventing post-endoscopic retrograde cholangiopancreatography pancreatitis:Importance of the endoscopist’s expertise level

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World Journal of Clinical Cases 2021年第17期9卷 4166-4177页

作者： Sung Yong Han Dong Hoon Baek Dong Uk Kim Chang joon park young joo park Moon Won Lee Geun Am Song Division of Gastroenterology and Hepatology Internal Medicine and Biomedical Research InstitutePusan National University HospitalBusan 49241South Korea

BACKGROUND Needle-knife fistulotomy(NKF)is used as a rescue technique for difficult ***,the data are limited regarding the use of NKF for primary biliary cannulation,especially when performed by *** To assess the effectiveness and safety of primary NKF for biliary cannulation,and the role of the endoscopist’s expertise level(beginner vs expert).METHODS We retrospectively evaluated the records of 542 patients with naïve prominent bulging papilla and no history of pancreatitis,who underwent bile duct cannulation at a tertiary referral *** patients were categorized according to the endoscopist’s expertise level and the technique used for bile duct *** assessed the rates of successful cannulation and adverse *** The baseline characteristics did not differ between the experienced and lessexperienced *** incidence rate of post-endoscopic retrograde cholangiopancreatography(ERCP)pancreatitis(PEP)was significantly affected by the endoscopist’s expertise level in patients who received conventional cannulation with sphincterotomy(8.9%vs 3.4%for beginner vs expert,P=0.039),but not in those who received *** the multivariable analysis,a lower expertise level of the biliary endoscopist(P=0.037)and longer total procedure time(P=0.026)were significant risk factor of PEP in patients who received conventional cannulation with sphincterotomy but only total procedure time(P=0.004)was significant risk factor of PEP in those who received *** Primary NKF was effective and safe in patients with prominent and bulging ampulla,even when performed by less-experienced *** need to confirm which level of endoscopist’s experience is needed for primary NKF through prospective randomized study.

关键词： Needle-knife fistulotomy Primary biliary cannulation Endoscopic retrograde cholangiopancreatography Expertise levels Pancreatitis

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Paeonol attenuates inflammation-mediated neurotoxicity and microglial activation

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Neural Regeneration Research 2013年第18期8卷 1637-1643页

作者： Kyong Nyon Nam Byung-Cheol Woo Sang-Kwan Moon Seong-Uk park joo-young park Jae-Woong Hwang Hyung-Sup Bae Chang-Nam Ko Eunjoo Hwang Lee Graduate School of East-West Medical Science Kyung Hee University Department of Cardiovascular & Neurologic Diseases (Stroke Center) Hospital of Oriental Medicine Kyung Hee University

Chronic activation of microglial cells endangers neuronal survival through the release of various proinflammatory and neurotoxic factors. The root of Paeonia lactiflora Pall has been considered useful for the treatment of various disorders in traditional oriental medicine. Paeonol, found in the root of Paeonia lactiflora Pall, has a wide range of pharmacological functions, including anti-oxidative, anti-inflammatory and neuroprotective activities. The objective of this study was to examine the efficacy of paeonol in the repression of inflammation-induced neurotoxicity and microglial cell activation. Organotypic hippocampal slice cultures and primary microglial cells from rat brain were stimulated with bacterial lipopolysaccharide. Paeonol pretreatment was performed for 30 minutes prior to lipopolysaccharide addition. Cell viability and nitrite （the production of nitric oxide）, tumor necrosis factor-alpha and interleukin-lbeta products were measured after lipopolysaccharide treatment. In organotypic hippocampal slice cultures, paeonol blocked lipopolysaccharide-related hippocampal cell death and inhibited the release of nitrite and interleukin-lbeta. Paeonol was effective in inhibiting nitric oxide release from primary microglial cells. It also reduced the lipopolysaccharide-stimulated release of tumor necrosis factor-alpha and intefleukin-1β from microglial cells. Paeonol possesses neuroprotective activity in a model of inflammation-induced neurotoxicity and reduces the release of neurotoxic and proinflammatory factors in activated microglial cells.

关键词： neural regeneration traditional Chinese medicine brain inflammation interleukin-lbeta microglia neurotoxicity neuroprotection nitric oxide organotypic hippocampal slice culture Paeonia lactifloraPall paeonol tumor necrosis factor-alpha neuroregeneration

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SUMS OF DUAL TOEPLITZ PRODUCTS ON THE ORTHOGONAL COMPLEMENTS OF FOCK-SOBOLEV SPACES

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Acta Mathematica Scientia 2024年第3期44卷 810-822页

作者：陈泳 young joo Lee Department of Mathematics Hangzhou Normal UniversityHangzhou311121China Department of Mathematics Chonnam National UniversityGwangju61186Korea

We consider dual Toeplitz operators on the orthogonal complements of the FockSobolev spaces of all nonnegative real ***,for symbols in a certain class containing all bounded functions,we study the problem of when an operator which is finite sums of the dual Toeplitz products is compact or ***,for bounded symbols,we construct a symbol map and exhibit a short exact sequence associated with the C^(*)-algebra generated by all dual Toeplitz operators with bounded symbols.

关键词： dual Toeplitz operators Fock-Sobolev spaces symbol map

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Acute distal common bile duct angle is risk factor for postendoscopic retrograde cholangiopancreatography pancreatitis in beginner endoscopist

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World Journal of Clinical Cases 2020年第1期8卷 20-28页

作者： Sung Yong Han Dong Uk Kim Moon Won Lee young joo park Dong Hoon Baek Gwang Ha Kim Geun Am Song Division of Gastroenterology Department of Internal Medicine and Biomedical Research Institute Pusan National University Hospital

BACKGROUND Post-endoscopic retrograde cholangiopancreatography(ERCP) pancreatitis(PEP)is a critical and poorly managed complication of ERCP. Endoscopists need to understand the risk factors for PEP. However, the majority of studies investigating ERCP-related risk factors have included well-trained endoscopists,with the issue of endoscopist experience on PEP incidence not having been systematically *** To explore the risk factors for PEP in beginner endoscopists without *** We performed a retrospective analysis of 293 patients, with na?ve papilla and no history of pancreatitis, treated using bile duct cannulation. Patients were classified according to the endoscopist’s experience(beginner vs expert). The angle of the distal common bile duct(CBD) was measured as the angle between the lower wall of the bile duct and a vertical line extending to the lower wall of the bile duct on coronal view computed *** After propensity matching, there were no differences between patients treated by the expert and beginner endoscopist with regard to age, sex, mean bile duct dilatation, and ratio of benign disease. The distal CBD angle was classified as acute(> 30o) or obtuse(≤ 30o), based on the mean angle of 29.9o for the group. An acute distal CBD angle was a significant risk factor for PEP for beginner(P =0.049), but not *** For beginner endoscopists first performing unsupervised ERCP, cases with an obtuse distal CBD angle may be more appropriate to lower the risk of PEP.

关键词： Common bile duct angle Endoscopic retrograde cholangiopancreatography Novice learner Pancreatitis Risk factor Begginer endoscopist

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Autoimmune hepatitis in a patient with immunoglobulin A nephropathy:A case report

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World Journal of Clinical Cases 2020年第17期8卷 3828-3834页

作者： You Hyun Jeon Da Woon Kim So Jeong Lee young joo park Hyo Jin Kim Miyeun Han Il young Kim Dong Won Lee Sang Heon Song Soo Bong Lee Eun young Seong Department of Internal Medicine Pusan National University School of MedicineBusan 49241South Korea Department of Pathology Pusan National University HospitalBusan 49241South Korea Division of Gastroenterology Department of Internal MedicineBiomedical Research InstitutePusan National University HospitalBusan 49241South Korea Division of Nephrology Department of Internal MedicineBiomedical Research InstitutePusan National University HospitalBusan 49241South Korea Division of Nephrology Department of Internal MedicinePusan National University Yangsan HospitalYangsan 626-770South Korea

BACKGROUND Immunoglobulin A nephropathy(IgAN)is the most commonly encountered glomerular disease in Asian *** has a broad clinical presentation,and it is frequently associated with other *** liver disease is well recognized as the leading cause of secondary ***,cases of IgAN associated with autoimmune hepatitis(AIH)have seldom been *** SUMMARY A 63-year-old Korean woman was admitted to Pusan National University Hospital for an evaluation of abdominal pain and elevated liver *** weeks prior,she had presented to our hospital with proteinuria of approximately 1350 mg/d and hematuria and was diagnosed with *** profiles were highly positive for antinuclear antibodies,and symptoms related to portal hypertension including ascites and peripheral edema were present.A diagnosis of AIH was made according to the simplified scoring system of the International Autoimmune Hepatitis *** immunosuppression with prednisolone and azathioprine,rapid deterioration of liver function led to end-stage liver *** a living-donor liver transplantation,liver function gradually improved,and she had maintained stable liver and kidney function at the six months *** Cases of secondary IgAN with chronic liver disease have been frequently reported in the literature but are rarely associated with *** encountered an IgAN patient with concurrent progressive liver failure due to AIH.

关键词： Immunoglobulin A nephropathy Secondary immunoglobulin A nephropathy Autoimmune hepatitis Liver transplantation Case report

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Advancements in hemostatic strategies for managing upper gastrointestinal bleeding: A comprehensive review

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World Journal of Gastroenterology 2024年第15期30卷 2087-2090页

作者： Ah young Lee joo young Cho Division of Gastroenterology Department of Internal MedicineCha Gangnam Medical CenterCha University College of MedicineSeoul 06135Korea

Upper gastrointestinal(GI)hemorrhage presents a substantial clinical *** management typically involves resuscitation and endoscopy within 24 h,although the benefit of very early endoscopy(<12 h)for high-risk patients is *** goals include stopping acute bleeding,preventing rebleeding,and using a multimodal approach encompassing endoscopic,pharmacological,angiographic,and surgical *** agents such as vasopressin,prostaglandins,and proton pump inhibitors are effective,but the increase in antithrombotic use has increased GI bleeding *** hemostasis,particularly for nonvariceal bleeding,employs techniques such as electrocoagu-lation and heater probes,with concerns over tissue injury from monopolar *** methods such as Hemospray and Endoclot show promise in creating mechanical tamponades but have ***,the first-line therapy includes thermal probes and hemoclips,with over-the-scope clips emerging for larger ulcer *** gold probe,combining bipolar electrocoagulation and injection,offers targeted coagulation but has faced device-related *** advancements involve combining techniques and improving endoscopic imaging,with studies exploring combined approaches showing *** research is crucial for developing standardized and effective hemorrhage management strategies.

关键词： Upper gastrointestinal bleeding Hemostasis Endoscopy Probe Spray Clip

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Effect of hafnium and molybdenum addition on inclusion characteristics in Co-based dual-phase high-entropy alloys

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1639-1650页

作者： Yong Wang Wei Wang joo Hyun park Wangzhong Mu Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education&Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan 430081China Department of Materials Science and Engineering KTH Royal Institute of TechnologySE-10044StockholmSweden Department of Chemical Engineering Northeast Electric Power UniversityJilin 132012China Department of Materials Science and Chemical Engineering Hanyang UniversityAnsan 15588Korea Engineering Materials Division of Materials ScienceDepartment of Engineering Science and MathematicsLuleå University of Technology97187 LuleåSweden

Specific grades of high-entropy alloys(HEAs)can provide opportunities for optimizing properties toward high-temperature *** this work,the Co-based HEA with a chemical composition of Co_(47.5)Cr_(30)Fe_(7.5)Mn_(7.5)Ni_(7.5)(at%)was *** refractory metallic elements hafnium(Hf)and molybdenum(Mo)were added in small amounts(1.5at%)because of their well-known positive effects on high-temperature *** characteristics were comprehensively explored by using a two-dimensional cross-sectional method and extracted by using a three-dimensional electrolytic extraction *** results revealed that the addition of Hf can reduce Al_(2)O_(3)inclusions and lead to the formation of more stable Hf-rich inclusions as the main *** addition cannot influence the inclusion type but could influence the inclusion characteristics by affecting the physical parameters of the HEA *** calculated coagulation coefficient and collision rate of Al_(2)O_(3)inclusions were higher than those of HfO_(2)inclusions,but the inclusion amount played a larger role in the agglomeration behavior of HfO_(2)and Al_(2)O_(3)*** impurity level and active elements in HEAs were the crucial factors affecting inclusion formation.

关键词： high-entropy alloy non-metallic inclusion agglomeration thermodynamics alloying

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Evolution of nonmetallic inclusions in 80-t 9CrMoCoB large-scale ingots during electroslag remelting process

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1525-1539页

作者： Shengchao Duan Min joo Lee Yao Su Wangzhong Mu Dong Soo Kim joo Hyun park School of Mechanical and Materials Engineering North China University of TechnologyBeijing 100144China Department of Materials Science and Chemical Engineering Hanyang UniversityAnsan 15588Rep.of Korea Department of Materials Science and Engineering KTH Royal Institute of TechnologyBrinellvägen 23Stockholm 10044Sweden Department of Engineering Science and Mathematics Division of Materials ScienceLuleåUniversity of Technology97187 LuleåSweden Casting&Forging Business Unit Nuclear Business GroupDoosan EnerbilityChangwon 51711Rep.of Korea

In combination with theoretical calculations,experiments were conducted to investigate the evolution behavior of nonmetallic inclusions(NMIs)during the manufacture of large-scale heat-resistant steel ingots using 9CrMoCoB heat-resistant steel and CaF_(2)–CaO–Al_(2)O_(3)–SiO_(2)–B_(2)O_(3)electroslag remelting(ESR)-type slag in an 80-t industrial ESR *** main types of NMI in the consumable electrode comprised pure alumina,a multiphase oxide consisting of an Al_(2)O_(3)core and liquid CaO–Al_(2)O_(3)–SiO_(2)–MnO shell,and M_(23)C_(6)carbides with an MnS *** Al_(2)O_(3)and MnS inclusions had higher precipitation temperatures than the M_(23)C_(6)-type carbide under equilibrium and nonequilibrium solidification ***,inclusions can act as nucleation sites for carbide layer *** ESR process completely removed the liquid CaO–Al_(2)O_(3)–SiO_(2)–MnO oxide and MnS inclusion with a carbide shell,and only the Al_(2)O_(3)inclusions and Al_(2)O_(3)core with a carbide shell occupied the remelted *** M_(23)C_(6)-type carbides in steel were determined as Cr_(23)C_(6)based on the analysis of transmission electron microscopy *** substitution of Cr with W,Fe,or/and Mo in the Cr_(23)C_(6)lattice caused slight changes in the lattice parameter of the Cr_(23)C_(6)***,Cr_(21.34)Fe_(1.66)C_(6),(Cr_(19)W_(4)C_(6),Cr_(18.4)Mo_(4.6)C_(6),and Cr_(16)Fe_(5)Mo_(2)C_(6)can match the fraction pattern of Cr_(23)C_(6)*** Al_(2)O_(3)inclusions in the remelted ingot formed due to the reduction of CaO,SiO_(2),and MnO components in the liquid *** increased Al content in liquid steel or the higher supersaturation degree of Al_(2)O_(3)precipitation in the remelted ingot than that in the electrode can be attributed to the evaporation of CaF_(2)and the increase in CaO content in the ESR-type slag.

关键词： nonmetallic inclusion heat-resistant steel electroslag remelting M_(23)C_(6) carbide MnS inclusion supersaturation degree

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