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Health behaviors of Korean adults with hepatitis B:Findings of the 2016 Korean National Health and Nutrition Examination Survey

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World Journal of Gastroenterology 2018年第28期24卷 3163-3170页

作者： Yu-Hyeon Yi Yun-Jin Kim Sang-Yeoup Lee Byung-Mann cho young-Hye cho Jeong-Gyu Lee Department of Family Medicine Pusan National University School of Medicine Medical Research Institute Pusan National University Hospital Busan Tobacco Control Center Pusan National University Hospital Department of Medical Education Pusan National University School of Medicine Family Medicine Clinic Pusan National University Yangsan Hospital Department of Preventive Medicine and Occupational Medicine Pusan National University School of Medicine

AIM To assess the frequencies of five health-related behaviors(smoking, alcohol consumption, body weight, sleep dura-tion, and physical activity) in Korean adults with chronic hepatitis *** Data were obtained from the 2016 Korean National Health and Nutrition Examination Survey. In total, 5887 subjects(2568 males, 3319 females) over 19 years old were enrolled in this study. Interviews were performed to obtain information on demographic characteristics and medical conditions. A self-administered questionnaire and medical examination were used to assess the smoking history, alcohol use, physical activity, sleep duration, and body weight of the subjects. Chronic hepatitis B was diagnosed based on detection of hepatitis B surface antigen(HBs Ag). The subjects were categorized into HBs Ag positive and negative groups, and a complex sampling analysis was conducted to compare the health behaviors between these *** Among males, the current smoking rate in the HBs Ag positive group was higher than that in the negative group(45.5% vs 38.5%). In the positive group, the rates of monthly and high-risk alcohol use were 70.4% and 17.6% in males and 45.9% and 3.8% in females, respectively. The rate of alcohol use was similar between the two groups [P = 0.455(males) and P = 0.476(females)]. In the HBs Ag positive group, 32.3% and 49.9% of males and 26.5% and 49.6% of females were overweight and physically inactive, respectively. High-risk alcohol consumption and physical inactivity were significantly associated with self-perceived health *** Our data demonstrate that a large proportion of Korean adults with chronic hepatitis B have poor health behaviors. Further studies are needed to confirm our results.

关键词： Health behavior Self-perceived health status Hepatitis Health risk behavior Health status

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Selective inhibition of cell growth by activin in SNU-16 cells

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World Journal of Gastroenterology 2006年第19期12卷 3000-3005页

作者： young Il Kim Hee Joo Lee Inkoo Khang Byung-Nam cho Ha Kyu Lee East-West Medical Research Institute Kyung Hee University SeoulSouth Korea Department of Laboratory Medicine Kyung Hee University College of MedicineSeoulSouth Korea School of Biological Sciences Seoul National University SeoulSouth Korea Department of Life Sciences The Catholic University of Korea PuchonSouth Korea

AIM： To investigate whether activin regulates the cell proliferation of human gastric cancer cell line SNU-16 through the mRNA changes in activin receptors, Smads and p21^CIP1/WAF1. METHODS： The human gastric cancer cell lines were cultured, RNAs were purified, and RT-PCRs were carried out with specifically designed primer for each gene. Among them, the two cell lines SNU-5 and SNU-16 were cultured with activin A for 24, 48 and 72 h. The cell proliferation was measured by MTT assay. For SNU-16, changes in ActRIA, ActRIB, ActRIIA, ActRIIB, Smad2, Smad4, Smad7, and p21^CIP1/WAF1 mRNAs were detected with RT-PCR after the cells were cultured with activin A for 24, 48 and 72 h. RESULTS： The proliferation of SNU-16 cells was down regulated by activin A whereas other cells showed no change. Basal level of inhibin/activin subunits, activin receptors, Smads, and p21^CIP1/WAF1 except for activin βB mRNAs was observed to have differential expression patterns in the human gastric cancer cell lines, AGS, KATO III, SNU-1, SNU-5, SNU-16, SNU-484, SNU-601, SNU-638, SNU-668, and SNU-719. Interestingly, significantly higher expressions of ActR IIA and IIB mRNAs were observed in SNU-16 cells when compared to other cells. After activin treatment, ActR IA, IB, and IIA mRNA levels were decreased whereas ActR IIB mRNA level increased in SNU-16 cells. Smad4 mRNA increased for up to 48 h whereas Smad7 mRNA increased sharply at 24 h and returned to the initial level at 48 h in SNU-16 cells. In addition, expression of the p21^CIP1/WAF1 the mitotic inhibitor, peaked at 72 h after activin treatment in SNU-16 cells. CONCLUSION： Our results suggest that inhibition of cell growth by activin is regulated by the negative feedback effect of Smad7 on the activin signaling pathway, and is mediated through p21^CIP1/WAF1 activation in SNU-16 cells.

关键词： Human gastric cancer cell lines, Activin A Cell proliferation Activin receptors Smads p21^CIP1/WAF1

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Self-expandable metal stents for choledocholithiasis in Billroth II gastrectomy patients

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Hepatobiliary & Pancreatic Diseases International 2018年第6期17卷 546-552页

作者： Min-Gui Han Eunae cho Chang-Hwan Park Chung-Hwan Jun Seon-young Park Division of Gastroenterology Department of Internal MedicineChonnam National University Hospital42Jaebong-roDong-KuGwangju 61482Korea

Background: Efficient ampullary intervention is essential for endoscopic retrograde cholangiopancreatography(ERCP) in patients with a prior Billroth II gastrectomy. We retrospectively evaluated the safety and effectiveness of ampullary intervention using fully covered self-expandable metal stents(FCSEMSs) for the management of common bile duct(CBD) stones in a subset of patients with a history of Billroth II gastrectomy. Methods: This retrospective analysis involved patients with a prior Billroth II gastrectomy who underwent ampullary intervention with FCSEMSs for the management of CBD stones. The factors associated with FCSEMSs placement, treatment success, and procedural complications were analyzed. Results: A group of 15 patients(10 males; median age, 78 years) underwent biliary metal stent placement for high degree of CBD angulation(6), small or flat papilla with unclear margin(5), current use of double antiplatelet agents or an anticoagulant(2), unwanted instrumentation of the cystic duct(1), and insecure position of the scope(1). Ampullary intervention with FCSEMSs was successful in all patients. After dilating the ampulla of Vater and building a durable conduit with FCSEMSs immediately, CBD stones were removed successfully from all patients in a single session. A mild post-ERCP pancreatitis occurred in one patient, who recovered without complications. Conclusion: Ampullary intervention with FCSEMSs is safe and effective for the management of CBD stones in a subset of patients with a history of Billroth II gastrectomy.

关键词： Common bile duct stone Endoscopic retrograde cholangiopancreatography Stent placement Stone extraction

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Docurity: A New Cryptographic Primitive for Collaborative Cloud Systems

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Intelligent Automation & Soft Computing 2023年第6期36卷 3725-3742页

作者： Byeori Kim Minseong choi Taek-young Youn Jeong Hyun Yi Haehyun cho Soongsil University Seoul06978Korea Dankook University Yongin16890Korea

Recently,there has been a sudden shift from using traditional office applications to the collaborative cloud-based office suite such as Microsoft Office *** cloud-based systems allow users to work together on the same docu-ment stored in a cloud server at once,by which users can effectively collaborate with each ***,there are security concerns unsolved in using cloud *** of the major concerns is the security of data stored in cloud ser-vers,which comes from the fact that data that multiple users are working together cannot be stored in encrypted form because of the dynamic characteristic of cloud *** this paper,we propose a novel mode of operation,DL-ECB,for AES by which we can modify,insert,and delete the ciphertext based on changes in ***,we can use encrypted data in collaborative cloud-based *** demonstrate that the DL-ECB mode can preserve the confidential-ity,integrity,and auditability of data used in collaborative cloud systems from adversaries,we implement and evaluate the prototype of the DL-ECB mode.

关键词： Cloud collaboration mode of operation auditability of ciphertext

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Transparent neural implantable devices:a comprehensive review of challenges and progress

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npj Flexible Electronics 2022年第1期6卷 439-456页

作者： young Uk cho Se Lin Lim Jung-Hoon Hong Ki Jun Yu Department of Electrical and Electronic Engineering Yonsei UniversitySeoulKorea Department of Electrical and Electronic Engineering YU-Korea Institute of Science and Technology InstituteYonsei UniversitySeoulKorea

The key to designing an implantable device lies in condensing the synergistic effects of diagnostic and therapeutic methods in a single *** conjunction with the integration of electrophysiology and optical modalities,a transparent neural interface alleviates challenges of conventional metal-based *** this review,the multimodal sensing and stimulation functionalities of recent research are ***,issues that arise when combining functionalities of conventional metal-based,opaque electrode arrays together with optical modalities—(1)photoelectric artifacts,(2)optical image blocking,and(3)light transmission efficiency—are ***,an introduction of advancing material candidates for transparent neural interfaces follows with the latest research.

关键词： neural transparent modal

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Potentially inappropriate prescribing of cardiovascular system and antiplatelet/anticoagulant drugs among elderly patients:a Korean population-based national study

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Journal of Geriatric Cardiology 2021年第5期18卷 327-337页

作者： Jongyeon Kim Euna Han Hee-Jin Hwang Hyeonseok cho young-Sang Kim Hyejin Chun Jinkwon Kim Yon Chul Park Hye-young Kang Department of Pharmaceutical Medicine and Regulatory Sciences Colleges of Medicine and PharmacyYonsei UniversityIncheonSouth Korea College of Pharmacy Yonsei Institute of Pharmaceutical SciencesYonsei UniversityIncheonSouth Korea Department of Family Medicine Catholic Kwandong University International St.Mary’s HospitalIncheonSouth Korea Department of Family Medicine CHA Bundang Medical CenterCHA UniversitySeongnamSouth Korea Department of Neurology Yongin Severance HospitalYonsei University College of MedicineYonginSouth Korea Department of Family Medicine Wonju Severance Christian HospitalWonjuSouth Korea

OBJECTIVES To investigate the prevalence of potentially inappropriate prescribing(PIP)for cardiovascular system(CVS)and antiplatelet/anticoagulant(AP/AC)drugs among Korean elderly patients,using the Screening Tool of Older Persons’Prescriptions(STOPP)criteria version 2 and to identify the risk factors related to *** The 2016 National Aged Patient Sample data,comprising National Health Insurance claim records for a random sample of 20%of patients aged≥65 years,were used to calculate PIP prevalence of outpatient *** criteria including drugdisease interactions,PIP prevalence per indication was *** Among 1,274,148 elderly patients and 27,062,307 outpatient prescription claims,100,085 patients(7.85%)and 341,664 claims(1.27%)had one or more *** most frequent PIP was“nonsteroidal antiinflammatory drug with concurrent antiplatelet agent(s)without protonpump inhibitor prophylaxis”in the claimlevel(0.97%)and patientlevel(6.33%)analyses.“Betablocker with bradycardia”(16.47%of claims)and“angiotensin receptor blockers in patients with hyperkalaemia”(23.89%of claims)showed the highest PIP prevalence per *** regression analysis revealed that,among the patient and health care provider characteristics,female,older age,more severe comorbidities,polypharmacy,higher level of healthcare organization,and specialty of prescriber were significantly associated with a higher risk of *** Our findings of a high prevalence of PIP for CVS and AP/AC drugs among the elderly suggest that an effective strategy is urgently needed to improve the prescription practices of these drugs.

关键词： drugs patients prescription

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Thoracic pyogenic infectious spondylitis presented as pneumothorax:A case report

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World Journal of Clinical Cases 2021年第6期9卷 1402-1407页

作者： Mi-Kyung cho Byeong-Ju Lee Jae-Hyeok Chang young-Mo Kim Department of Rehabilitation Medicine Pusan National University HospitalBusan 49241South Korea

BACKGROUND Pyogenic infectious spondylitis(PIS)is a rare condition,with an incidence between 0.2 and 2 cases per 100000 per ***’s most common symptom-back or neck pain-occurs in more than 90%of ***,we reported a case of thoracic PIS accompanied by pneumothorax in a 65-year-old male *** SUMMARY A 65-year-old man presented with right chest pain and *** initial erect posteroanterior chest radiography revealed pneumothorax,which was further evaluated by chest computed tomography,revealing pleural effusion in the right lung and a paravertebral abscess with bony destruction of vertebral *** on magnetic resonance imaging,the patient was diagnosed with thoracic infectious spondylitis with an anterior paravertebral *** was prescribed antibiotics and underwent neurosurgery due to aggravated symptoms and neurologic *** examination revealed that the cause of pleural effusion and pneumothorax was Staphylococcus aureus infection contiguously spread to lung *** several surgical treatments with intravenous antibiotic therapy for two months and transition to oral antibiotics(rifampin 600 mg qd and ciprofloxacin 500 mg bid),the patient received physical therapy to recover *** month after discharge,the patient had no chest pain or dyspnea,and exhibited no elevation in inflammatory markers or new thoracic *** To our knowledge,this is the very first report of a case of thoracic PIS with pneumothorax.

关键词： Chest pain Pneumothorax Pleural effusion Neurologic deficits Spondylitis Case report

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The recent advances in scaffolds for integrated periodontal regeneration

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Bioactive Materials 2021年第10期6卷 3328-3342页

作者： Hyun Nyun Woo young Joon cho Solaiman Tarafder Chang H.Lee Center for Dental and Craniofacial Research Columbia University Medical Center630 W.168 St.VC12-212New YorkNY10032USA

The periodontium is an integrated,functional unit of multiple tissues surrounding and supporting the tooth,including but not limited to cementum(CM),periodontal ligament(PDL)and alveolar bone(AB).Periodontal tissues can be destructed by chronic periodontal disease,which can lead to tooth *** support of the treatment for periodontally diseased tooth,various biomaterials have been applied starting as a contact inhibition membrane in the guided tissue regeneration(GTR)that is the current gold standard in dental ***,various biomaterials have been prepared in a form of tissue engineering scaffold to facilitate the regeneration of damaged periodontal *** a physical substrate to support healing of a single type of periodontal tissue to multi-phase/bioactive scaffold system to guide an integrated regeneration of periodontium,technologies for scaffold fabrication have emerged in last *** review covers the recent advancements in development of scaffolds designed for periodontal tissue regeneration and their efficacy tested in vitro and in *** and Cons of different biomaterials and design parameters implemented for periodontal tissue regeneration are also discussed,including future perspectives.

关键词： Periodontium Periodontitis Bioactive scaffold Multi-phase scaffold Periodontal regeneration

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Humulus japonicus extract alleviates oxidative stress and apoptosis in 6-hydroxydopamine-induced PC12 cells

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Asian Pacific Journal of Tropical Biomedicine 2022年第5期12卷 197-206页

作者： Feng Wang Byoung Ok cho Jae young Shin Suping Hao Seon Il Jang Department of Health Management Jeonju UniversityJeonju 55069Korea Research Institute Ato Q&A CoLTDCheonjam-roWansan-guJeonju 55069Korea Department of Life Sciences Yuncheng UniversityYunchengShanxi Province 044000PR China Institute of Health&Science Jeonju UniversityJeonju 55069Korea

Objective:To explore the possible neuroprotective activities of Humulus japonicus extract against Parkinson's disease(PD)in a cellular ***:PD was modeled in PC12 cells using 6-hydroxydopamine(6-OHDA).The cell activity,intracellular levels of reactive oxygen species(ROS),anti-oxidative and anti-apoptotic effects,and other related indicators and related signaling pathways were evaluated to elucidate the neuroprotective effects of Humulus japonicus ***:Humulus japonicus extract exhibited anti-oxidative and anti-apoptotic effects in 6-OHDA-stimulated PC12 *** also reduced oxidative stress-induced ROS accumulation;upregulated antioxidant enzymes,such as glutathione,catalase,heme oxidase-1,and 8-oxguanine glycosylase 1;promoted cell survival by decreasing BAX and increasing Bcl-2 and sirtuin 1 expression via the MAPK and/or Nrf2 signaling ***:Humulus japonicus extract has antioxidative and anti-apoptotic effects and could be developed as a promising candidate for preventing and treating oxidative stress-related neurodegenerative diseases.

关键词： Humulus japonicus Parkinson’s disease Oxidative stress Apoptosis MAPK PC12 cells Nrf2

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Comparison of magnetic properties of DNA-cetyltrimethyl ammonium complex with those of natural DNA

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Science China Chemistry 2012年第5期55卷 814-821页

作者： KWON young-Wan choI Dong Hoon JIN Jung-Il LEE Chang Hoon KOH Eui kwan GROTE James G. Department of Chemistry Korea University Seoul 136-701 Korea Department of Polymer Science & Engineering Chosun University Gwangju 501-759 Korea Korea Basic Science Institute-Seoul Branch Korea University Seoul 136-701 Korea US Air Force Research Laboratory Materials and Manufacturing Directorate AFRL/MLPS Wright-Patterson Air Force Base Ohio USA

We prepared the DNA-cetyltrimethyl ammonium complex, as well as the same complex intercalated with stable organic free radicals, and studied their magnetic properties by electron magnetic resonance (EMR) spectroscopy and by measuring the magnetization on a superconducting quantum interference device (SQUID). The UV-vis and CD spectra of DNA-quaternary alkyl ammonium complex (DNA--Q+) in organic solvent clearly demonstrated that it retained the double helical B-form conformation. The interhelical spacing of double strand DNA (dsDNA) increased when the counter ions (Na+) of phosphate groups of the natural DNA were replaced with the long alkyl quaternary ammonium groups. The inter-helical distance of DNA-cetyltrimethyl ammonium (CTMA) was 39.1  as confirmed by X-ray diffractometry. In general, the magnetization of the DNA-CTMA complex solid was found to be significantly lower than that of natural DNA. Moreover, intercalation of the complex with stable organic free radicals did not improve magnetization, which again was in marked contrast to natural DNA. EMR spectroscopic behavior of the complex in the solid state also was quite different from that of natural DNA: The unique broad EMR signal of natural DNA in the low field region with g-value greater than 10 disappeared in the DNA-CTMA complex.

关键词： natural DNA DNA-CTMA DNA-CTMA-PTMI magnetic property electron magnetic resonance (EMR) superconducting quantum interference device (SQUID)

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