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Is a split-dose regimen of 2 L polyethylene glycol plus ascorbic acid tolerable for colonoscopy in an early morning visit to a comprehensive medical check-up?

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World journal of Gastroenterology 2017年第6期23卷 1030-1037页

作者： ji yeon Seo Changhyun Lee Eun Hyo jin Mi Hyun Yun joo Hyun Lim Hae yeon Kang jong In Yang Su jin Chung Sun Young Yang joo Sung Kim Department of Internal Medicine and Healthcare Research Institute Healthcare System Gangnam CenterSeoul National University Hospital Department of Nursing Healthcare System Gangnam CenterSeoul National University Hospital

To evaluate the effectiveness and tolerability of a split-dose 2 L polyethylene glycol (PEG)/ascorbic acid (AA) regimen for healthy examinees who visited for comprehensive medical check-up in the early *** February 2015 to March 2015, examinees of average risk who were scheduled for a colonoscopy in the morning were retrospectively *** 189 examinees were divided into split-dose and non-split-dose groups. The adequacy of bowel preparation for the split-dose group vs the non-split-dose group was 96.8% vs 85.2%, respectively, P < 0.001, and the compliance of the last meal restriction was 74.6% vs 58.2%, respectively, P < 0.001. The sleep disturbance (P < 0.001) was more prevalent in the split-dose group, however the willingness to repeat the same preparation method (P = 0.243) was not different in both groups. The split-dose regimen was the most important factor influencing adequate bowel preparation in multivariate analysis (HR = 10.89, 95%CI: 6.53-18.17, P < 0.001).CONCLUSIONA split-dose regimen of 2 L PEG/AA for an early morning colonoscopy was more effective and showed better compliance for diet restriction without any difference in satisfaction and discomfort. Introducing a split-dose regimen of 2 L PEG/AA to morning colonoscopy examinees is effective and tolerable in a comprehensive medical check-up setting.

关键词： Compliance Early morning colonoscopy Effectiveness Split-dose regimen Tolerability

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How to improve patient satisfaction during midazolam sedation for gastrointestinal endoscopy?

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World journal of Gastroenterology 2017年第6期23卷 1098-1105页

作者： Eun Hyo jin Kyoung Sup Hong Young Lee ji yeon Seo ji Min Choi Jaeyoung Chun Sang Gyun Kim joo Sung Kim Hyun Chae Jung Department of Internal Medicine Healthcare Research InstituteSeoul National University Hospital Healthcare System Gangnam Center Department of Internal Medicine Liver Research InstituteSeoul National University College of Medicine Department of Biostatistics and Bioinformatics Healthcare Research InstituteSeoul National University Hospital Healthcare System Gangnam Center

To determine the procedure-related factors that affect sedation satisfaction and to make a suggestion to improve *** prospectively enrolled a total of 456 patients who underwent outpatient endoscopy procedures with midazolam sedation between March 2014 and August 2014. All patients completed both pre- and post-endoscopy questionnaires about sedation expectations and *** study cohort included 167 (36.6%) patients who underwent esophagogastroduodenoscopy (EGD), 167 (36.6%) who underwent colonoscopy, and 122 (26.8%) who underwent a combined procedure (EGD and colonoscopy). Over 80% of all patients were satisfied with sedation using midazolam. In univariate and multivariate analyses, total procedure time in the EGD group, younger age (≤ 50 years), and longer colonoscopy withdrawal time in the colonoscopy group were related to decreased satisfaction with sedation. However, in active monitoring and intervention group, there was no decrease in grade of satisfaction despite longer procedure time due to more procedures during colonoscopy. Younger age (≤ 50 years), longer inter-procedure time gap, and colonoscopy withdrawal time were related to decreased satisfaction in the combined EGD and colonoscopy *** is still a safe and effective sedative for gastrointestinal endoscopy. Satisfaction with sedation depends on several factors including age (≤ 50 years) and procedure time duration. To improve patient satisfaction with sedation, active monitoring of sedation status by the endoscopist should be considered for patients who require long procedure time.

关键词： Conscious sedation Patient satisfaction Endoscopy Midazolam Surveys and questionnaires

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Solid fusion after lumbosacral arthroplasty

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World journal of Orthopedics 2013年第3期4卷 157-160页

作者： Sang-Hoon Jang Ho-yeon Lee ji-Young Cho Sang-Ho Lee Department of Neurosurgery Wooridul Spine HospitalSeoul 135-100South Korea

A 55-year-old female was diagnosed with L5-S1 degenerative disc disease(DDD). Initial scores by the visual analogue scale(VAS) were 5(back) and 9(leg) and the Oswestry disability index(ODI) was 32. Arthroplasty was performed. Clinical and radiographic monitoring took place thereafter at one month, three months, six months and annually. At one month, VAS scores were 2(back) and 3(leg), ODI was 12 and ROM was 2.1° by radiographs. At two years, VAS scores were 1(back) and 2(leg), ODI was 6 and ROM was approaching 0. Five years after surgery, the entire operated segment(L5-S1) was solidly fused. A malpositioned disc implant may impair normal spinal movement, culminating in heterotopic ossification or complete fusion of the operated segment.

关键词： Total disc replacement Lumbar spine Heterotopic ossification Fusion,Arthroplasty Solid fusion

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Multi-hop relay-based maritime visible light communication

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Chinese Optics Letters 2016年第5期14卷 29-33页

作者： Hyeong-ji Kim Samrat Vikramaditya Tiwari yeon-Ho Chung Department of Information and Communications Engineering Pukyong National University

This Letter presents a multi-hop relay visible light communication （VLC） system for maritime applications. Maritime VLC systems suffer from limited coverage distance due inherently to the usage of light-emitting diodes and photodetectors. The proposed system employs a multiple of decode-and-forward relays to extend coverage distance in maritime environments. The multi-hop relay based maritime VLC is analyzed under a maritime channel modeled by the joNSWAP spectrum and gamma-gamma distribution. It is found that the use of relays in maritime environments can extend the coverage distance significantly and also improve the performance. In addition, the performance of the system is analyzed using various combining techniques at the receiver to enhance the performance. The maximal ratio combining technique is found to provide superior link quality in maritime environments.

关键词： VLC Multi-hop relay-based maritime visible light communication

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In situ observation of atomic movement in a ferroelectric film under an external electric field and stress

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Nano Research 2018年第7期11卷 3824-3832页

作者： Hyeon Jun Lee Er-jia Guo Taewon Min Seung Hyun Hwang Su Yong Lee Kathrin Dorr Jaekwang Lee ji Young jo School of Materials Science and Engineering Gwangju Institute of Science and Technology Gwangju 61005 Republic of Korea Quantum Condensed Matter Division Oak Ridge National Laboratory Oak Ridge TN 37830 USA Institute for Physics Martin-Luther-University Halle-Wittenberg Halle 06099 Germany Department of Physics Pusan National University Busan 46241 Republic of Korea Pohang AccelerotorLaboratory Pohang 37673 Republic of Korea

Atomic movement under application of external stimuli （i.e., electric field or mechanical stress） in oxide materials has not been observed due to a lack of experimental methods but has been well known to determine the electric polarization. Here, we investigated atomic movement arising from the ferroelectric response of BiFeO3 thin films under the effect of an electric field and stress in real time using a combination of switching spectroscop）6 time-resolved X-ray microdiffraction, and in situ stress engineering. Under an electric field applied to a BiFeO3 film, the hysteresis loop of the reflected X-ray intensity was found to result from the opposing directions of displaced atoms between the up and down polarization states. An additional shift of atoms arising from the linearly increased dielectric component of the polarization in BiFeO3 was confirmed through gradual reduction of the diffracted X-ray intensity. The electric-field- induced displacement of oxygen atoms was found to be larger than that of Fe atom for both ferroelectric switching and increase of the polarization. The effect of external stress on the BiFeO3 thin film, which was controlled by applying an electric field to the highly piezoelectric substrate, showed smaller atomic shifts than for the case of applying an electric field to the film, despite the similar tetragonality.

关键词： in situ measurement atomic displacementunder electric field time-resolved X-ray microdiffraction ferroelectrics in situ strain engineering

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Retreatment with peginterferon and ribavirin in chronic hepatitis C

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World journal of Gastroenterology 2015年第6期21卷 1994-1999页

作者： Yong Min jo Sung Wook Lee Sang Young Han Yang Hyun Baek Soo Young Kim Woo Jae Kim ji Hye Ahn ji Young Lee Department of Internal Medicine Dong-A University School of Medicine

The development of boceprevir and telaprevir was a major step forward in the treatment of chronic hepatitis *** addition,the treatment of these infections has been recently revolutionized by the approval of sofosbuvir and ***,there are several challenges associated with the application of noveldrugs,such as new and more frequent adverse events,new drug interactions,and excessively high treatment *** additional concern is viral *** considerations highlight the fact that direct-acting antiviral agents are not a panacea and may not be the best option for all patients who are in need of *** retrospective study revealed that the sustained virologic response was not significantly reduced following peginterferon and ribavirin retreatment compared with the new *** suggest that patients who experience relapse shortly after completing treatment with peginterferon and ribavirin have a reasonable chance of achieving a sustained virologic response when retreated with these drugs alone.

关键词： Chronic hepatitis C Direct-acting antiviral agents

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Inhibitory Mechanisms of Water Extract of Oplopanax elatus on Lipopolysaccharide-lnduced Inflammatory Responses in RAW 264.7 Murine Macrophage Cells

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Chinese journal of Integrative Medicine 2020年第9期26卷 670-676页

作者： Ki Sun Kwon Hyun Lim Yong Soo Kwon Myong jo Kim ji Hye Yoo Nam Ho Yoo Hyun Pyo Kim College of Pharmacy Kangwon National UniversityChuncheon(24341)Republic of Korea Department of Bio-Resource Sciences Kangwon National UniversityChuncheon(24341)Republic of Korea Bioherb Research Institute Kangwon National UniversityChuncheon(24341)Republic of Korea

Objective:To study the anti-inflammatory action and cellular mechanism of Oplopanax ***:A hot water extract of OE(WOE)was prepared and a major constituent,syringin,was successfully *** content in WOE was found to be 214.0 p.g/g dried plant(w/w).Their anti-inflammatory activities were examined using RAW 264.7 macrophages and a mouse model of croton oil-induced ear ***:In lipopolysaccharide(LPS)-treated RAW 264.7 cells,a mouse macrophage cell line,WOE was found to significantly and strongly inhibit cyclooxygenase-2(COX-2)-induced prostaglandin E2(PGE2)production[half maximal inhibitory concentration(IC50)=135.2μg/mL]and inducible nitric oxide synthase(iNOS)-induced NO production(IC50=242.9μg/mL).In the same condition,WOE was revealed to inhibit NO production by downregulating iNOS expression,mainly by interrupting mitogen activated protein kinases(MAPKs)/activator protein-1(AP-1)*** activation of all three major MAPKs,p38 MAPK,extracellular signal-regulated kinase(ERK),and c-Jun N-terminal kinase,was inhibited by WOE(50-300μg/mL).On the other hand,WOE reduced PGE2 production by inhibiting COX-2 enzyme activity,but did not affect COX-2 expression *** addition,WOE inhibited the production of proinflammatory cytokines such as interleukin-6 and tumor necrosis factor-α.In croton oil-induced ear edema in mice,oral administration of WOE(50-300 mg/kg)dose-dependently inhibited edematic ***:Water extract of OE exhibited multiple anti-inflammatory action mechanisms and may have potential for treating inflammatory disorders.

关键词： Oplopanax elatus Chinese medicine stem syringin anti-inflammation RAW 264.7

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Lens culinaris agglutinin-reactive fraction of alpha-fetoprotein improves diagnostic accuracy for hepatocellular carcinoma

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World journal of Gastroenterology 2021年第28期27卷 4687-4696页

作者： Han Ah Lee Yoo Ra Lee Young-Sun Lee Young Kul Jung ji Hoon Kim Hyunggin An Hyung joon Yim Yoon Tae Jeen jong Eun yeon Kwan Soo Byun yeon Seok Seo Department of Internal Medicine Korea University College of MedicineSeoul 02841South Korea Department of Biostatistics Korea University Anam HospitalSeoul 02841South Korea

BACKGROUND Diagnostic accuracy of various tumor markers and their combinations for hepatocellular carcinoma(HCC)was not fully *** To evaluate the diagnostic accuracy of alpha-fetoprotein(AFP),the Lens culinaris agglutinin-reactive fraction of AFP(AFP-L3),and protein induced by vitamin K absence or antagonist-II(PIVKA-II)and their combination for HCC *** Patients with newly detected liver mass or elevated serum AFP levels were considered *** AFP level,AFP-L3 fraction,and PIVKA-II level were measured at the first *** In total,622 patients were included;355 patients(57.1%)had chronic liver disease,and 208(33.4%)had liver *** was diagnosed in 160 patients(25.7%).The area under the receiver operating characteristics curves(AUROCs)of the serum AFP,AFP-L3 fraction,AFP-L3,and PIVKA-II levels for the diagnosis of HCC were 0.775,0.792,0.814,and 0.834,respectively.A novel diagnostic model was developed by classifying patients in a 1:1 ratio into training and validation *** the binary regression analysis of the training cohort,the AFP,AFP-L3 fraction,and PIVKA-II(ALPs)score was calculated as follows:ALPs score=3.8×[serum AFP level(ng/mL)×AFP-L3 fraction(%)×0.01]+0.2×PIVKA-II level(mAU/mL).The AUROC of the ALPs score for diagnosis of HCC was 0.878,significantly higher than that of serum AFP level(P<0.001),AFP-L3 fraction(P<0.001),PIVKA-II level(P=0.036),and AFP-L3 level(P=0.006).The optimal ALPs score cut-off was 5.3(sensitivity,85.0%,specificity 80.1%).The validation cohort showed similar *** The ALPs score calculated using serum AFP level,AFP-L3 fraction,and PIVKA-II level showed improved accuracy in HCC diagnosis.

关键词： Alpha-fetoprotein Lens culinaris agglutinin-reactive fraction of alphafetoprotein Protein induced by vitamin K absence or antagonist-II Hepatocellular carcinoma

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Fragmentation stability and retention time-shift obtained by LC-MS/MS to distinguish sialylated N-glycan linkage isomers in therapeutic glycoproteins

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journal of Pharmaceutical Analysis 2023年第3期13卷 305-314页

作者： Chi Soo Park Minju Kang Ahyeon Kim Chulmin Moon Mirae Kim jieun Kim Subin Yang Leeseul Jang ji yeon Jang Ha Hyung Kim Department of Global Innovative Drugs Graduate School of Chung-Ang UniversitySeoul06974Republic of Korea

Sialylated N-glycan isomers withα2-3 orα2-6 linkage(s)have distinctive roles in glycoproteins,but are difficult to ***-type(WT)and glycoengineered(mutant)therapeutic glycoproteins,cytotoxic T lymphocyte-associated antigen-4-immunoglobulin(CTLA4-Ig),were produced in Chinese hamster ovary cell lines;however,their linkage isomers have not been *** this study,N-glycans of CTLA4-Igs were released,labeled with procainamide,and analyzed by liquid chromatography-tandem mass spectrometry(MS/MS)to identify and quantify sialylated N-glycan linkage *** linkage isomers were distinguished by comparison of 1)intensity of the N-acetylglucosamine ion to the sialic acid ion(Ln/Nn)using different fragmentation stability in MS/MS spectra and 2)retention time-shift for a selective m/z value in the extracted ion *** isomer was distinctively identified,and each quantity(>0.1%)was obtained relative to the total N-glycans(100%)for all observed ionization *** sialylated N-glycan isomers with onlyα2-3 linkage(s)in WT were identified,and each isomer's sum of quantities was 50.4%.Furthermore,39 sialylated N-glycan isomers(58.8%)in mono-(3 N-glycans;0.9%),bi-(18;48.3%),tri-(14;8.9%),and tetra-(4;0.7%)antennary structures of mutant were obtained,which comprised mono-(15 N-glycans;25.4%),di-(15;28.4%),tri-(8;4.8%),and tetra-(1;0.2%)sialylation,respectively,with onlyα2-3(10 N-glycans;4.8%),bothα2-3 andα2-6(14;18.4%),and onlyα2-6(15;35.6%)linkage(s).These results are consistent with those forα2-3 neuraminidase-treated *** study generated a novel plot of Ln/Nn versus retention time to distinguish sialylated N-glycan linkage isomers in glycoprotein.

关键词： Therapeutic glycoprotein Sialylation Linkage isomer LC-MS/MS

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朗文新托福考试听力特训

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丛书名：大愚文化英语学习丛书,新托福备考系列丛书

2010年

作者： (韩)ji-yeon Lee

本书完全按照新托福考试要求进行编写，旨在帮助考生提高听力专项技能。书中涵盖了新托福听力测试的全部题型，并提供大量的练习供考生进行自测。

ISBN: (数字)9787802561618

ISBN: (纸本)9787802561618

关键词：朗文新托福考试听力特训

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