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Measles outbreaks in the Kyeongin area of the Republic of Korea,2013-2014:A single-center experience in a country of measles elimination

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Asian Pacific Journal of Tropical Medicine 2017年第1期10卷 67-72页

作者： Sun Hyoung Park Dong Hun Lee Jang Yong Jin Young-Lim Shin Meeyong Shin Sung Shin Kim won suk suh Jae Ock Park Yong Hee Hong Department of Pediatrics College of MedicineSoonchunhyang UniversityBucheon HospitalBucheonRepublic of Korea

Objective: To identify the source of infection and determine the clinical features and laboratory finding of measles infection,Methods: In 27 measles patients,except for 3 adult patients,the rest of 24 pediatric measles cases were analyzed with regard to age,sex,immunization status,transmission routes and molecular genotyping of measles virus,Eighteen measles patients who admitted in isolation ward were set apart to investigate clinical findings and its correlation with laboratory characteristics,Retrospective analysis of cases was conducted in this study,Results: Of the 24 pediatric patients,23(95.8%) had not received any measles-containing vaccine(MCV),Sixteen of the patients(66.7%) were aged <12 months,The suspicious index case of a girl aged 34 months was not vaccinated with MCV1 and got measles after a trip to Philippines,and molecular genotype was revealed as B3,Measles outbreaks in the community such as a restaurant were followed by this one imported case,According to analysis of 18 patients admitted in isolation ward,the median level of C-reactive protein(CRP) was 0.38 mg/d L and that of lactate dehydrogenase(LDH) was 1 200 IU/L,All of the 18 patients had LDH levels above the normal range,Age correlated with CRP(ρ = 0.528,P = 0.024) and LDH(ρ = 0.501,P = 0.034),The duration of fever was correlated with the duration of fever before rash(ρ = 0.898,P < 0.01),The duration of hospitalization was correlated with CRP(ρ = 0.586,P = 0.011),The white blood cell counts were correlated with the levels of LDH(ρ = 0.505,P = 0.033),aspartate aminotransferase(ρ = 0.507,P = 0.032),and alanine aminotransferase(ρ = 0.481,P = 0.043),Conclusions: Early weaning of maternally derived measles antibodies therefore vaccination of MCV1 at a young age from 9 months to 12 months should be considered in situations of early exposure,Furthermore there is a call for consideration of scheduling an earlier age for the first dose of MMR vaccine in Europe,It is necessary for Korea to investigat

关键词： Measles Disease outbreaks Pediatrics

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Synthesis and Characterization of Magnetite/Carbon Nanocomposite Thin Films for Electrochemical Applications

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Journal of Materials Science & Technology 2011年第10期27卷 873-878页

作者： suh Cem Pang Wai Hwa Khoh suk Fun Chin Department of Chemistry Faculty of Resource Science and TechnologyUniversiti Malaysia Sarawak

Stable colloidal suspension of magnetite/starch nanocomposite was prepared by a facile and aqueous-based chemical precipitation method, Magnetite/carbon nanocomposite thin films were subsequently formed upon carbonization of the starch component by heat treatment under controlled conditions. The initial content of native sago starch as the carbon source was found to affect the microstructure and electrochemical properties of the resulted magnetite/carbon nanocomposite thin films, A specific capacitance of 124 F/g was achieved for the magnetite/carbon nanocomposite thin films as compared to that of 82 F/g for pure magnetite thin films in Na2SO4 aqueous electrolyte.

关键词： Magnetite Magnetite/carbon nanocomposite Native sago starch Specific capacitance

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Protective effects of a polymethoxy flavonoids-rich Citrus aurantium peel extract on liver fibrosis induced by bile duct ligation in mice

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Asian Pacific Journal of Tropical Medicine 2016年第12期9卷 1135-1141页

作者： Seol-Wa Lim Dong-Ryung Lee Bong-Keun Choi Hong-suk Kim Seung Hwan Yang Joo-won suh Kyung Soo Kim Graduate School of Biomedicine & Health Sciences Catholic University Nutra Pharm Tech Interdisciplinary Program of Biomodulation Myongji University Department of Biotechnology Chonnam National University Center for Nutraceutical and Pharmaceutical Materials Myongji University

Objective: To evaluate the possible protective effect of Citrus aurantium peel extract(CAE) against apoptosis in cholestatic liver fibrosis induced by bile duct ligation in mice. Methods: Male ICR mice were divided to 5 groups: 1) Control group(Sham-operated mice), 2) Cholestatic liver injury group induced by bile duct ligation(BDL), 3) BDL mice treated with silymarin(200 mg/kg) for 4 weeks, 4) BDL mice treated with 50 mg/kg CAE for 4 weeks, 5) BDL mice treated with 200 mg/kg CAE for 4 weeks. Mice were sacrificed and liver fibrosis was evaluated by serum and hepatic tissue biochemistry tests and liver histopathological examination. Effects of CAE on inflammation and apoptosis gene regulation were investigated through real-time PCR. CAE effect on lipid metabolism related signaling was determined by western blot analysis. Results: In BDL mice, administration of CAE for 4 weeks markedly attenuated liver fibrosis based on histopathological alteration. Serum and hepatic tissue biochemistry results revealed that CAE(50 and 200 mg/kg) decreased the levels of alanine transaminase, aspartate transaminase, gamma glutamyl transferase, total bilirubin, nitric oxide, and thiobarbituric acid reactive substances. Real-time PCR and western blot analysis showed that CAE regulated inflammation, apoptosis, and lipid metabolism factors increased by BDL. Interleukin family, tumor necrosis factor α, and related apoptosis factors m RNA levels were increased by BDL treatment. However, these increases were suppressed by CAE administration. In addition, CAE effectively increased phosphorylation of AMPactivated protein kinase, nuclear factor E2-related factor 2, and related cytoprotective proteins. Conclusions: CAE can efficiently regulate BDL-induced liver injury with antioxidant, antiinflammatory, and antiapoptotic activities.

关键词： Liver injury Bile duct ligation Cholestasis Citrus aurantium peel extract Hepatic fibrosis

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Insights from Seoul National University Hospital’s experience: a systematic review of pure laparoscopic donor hepatectomy progression

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Hepatobiliary Surgery and Nutrition 2024年第2期13卷 293-300页

作者： suk Kyun Hong YoungRok Choi Nam-Joon Yi Kwang-Woong Lee Kyung-suk suh Department of Surgery Seoul National University College of MedicineSeoulSouth Korea

Following its initial execution in November 2015,pure laparoscopic donor hepatectomy(PLDH)has gained acceptance as a conventional practice at Seoul National University Hospital(SNUH).It is noteworthy that a significant proportion of cases entail full right hepatectomies,which are acknowledged to be technically *** expertise and knowledge have been accrued,the pure laparoscopic technique has been extended to encompass liver recipients as a viable option in *** aim of this review is to present the developmental progression of PLDH,with a focus on pure laparoscopic donor right hepatectomy(PLDRH),at *** includes the standardization process,which can be achieved by sharing the hospital’s accumulated experience and previous *** types of graft,including full right,left,left lateral section,and monosegment,were procured by pure laparoscopic *** criteria for selection were expanded to include donors with variations in the anatomy of the portal vein and bile ***,the procedure of PLDRH was determined to be safe and viable for donors with high body mass index and larger graft *** conclusion,this review demonstrates the alterations implemented throughout our evolution from restricted to inclusive criteria for donor selection,leading to a complete shift from open surgery to pure laparoscopic procedures in donor hepatectomy and eventually pure laparoscopic living donor liver transplantation(LDLT)in recipient.

关键词： Donor hepatectomy laparoscopy living donor liver transplantation(LDLT) right hepatectomy minimally invasive

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Diverse Functions of VDUP1 in Cell Proliferation,Differentiation,and Diseases

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Cellular & Molecular Immunology 2007年第5期4卷 345-351页

作者： Sang Yong Kim Hyun-Woo suh Jin Woong Chung suk-Ran Yoon Inpyo Choi Stem Cell Research Center Korea Research Institute of Bioscience and BiotechnologyYusongTaejon 305-333Republic of Korea

Vitamin D3 up-regulated protein 1 （VDUP1） is a multifunctional protein involved in maintaining cellular homeostasis. VDUP1 is induced by a variety of stresses. Inversely, VDUP1 is often reduced in various tumor tissues and cell lines. Over-expression of VDUP1 inhibits cell proliferation through cell cycle arrest. VDUP1 interacts with thioredoxin （Trx） and negatively regulates the expression and antioxidant function of Trx which is involved in redox regulation. VDUP1/ mice are more susceptible to carcinogenesis than wild-type mice and are defective in establishing immune system induding the development and function of natural killer cells. Furthermore, VDUP1^-/- mice show impaired Kreb cycle-mediated fatty acid utilization. In this review, we have discussed the multifunctional roles of VDUP1 in diverse cellular responses, in particular its relation to proliferation, apoptosis, differentiation, and diseases such as cancer and stress-related diseases.

关键词： VDUP1 thioredoxin proliferation immune cell

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Efficient detection of pathogen virus in sand dabs,Paralichthys olivaceus using loop-mediated isothermal amplification(LAMP)

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Acta Oceanologica Sinica 2016年第8期35卷 44-50页

作者： HWANG Jinik PARK So Yun suh Sung-suk PARK Mirye LEE sukchan LEE Taek-Kyun South Sea Environment Research Department Korea Institute of Ocean Science and TechnologyGeoje 53201Republic of Korea Korea University of Science and Technology Daejeon 34113Republic of Korea Department of Genetic Engineering Sungkyunkwan UniversitySuwon 16419Republic of Korea

Viral hemorrhagic septicemia virus（VHSV） and marine birnavirus（MABV） are the causative pathogens for some of the most explosive epidemics of emerging viral diseases in many Asian countries, leading to huge economic losses in aquaculture. Rapid molecular detection for surveillance or diagnosis has been a critical component in reducing the prevalence of pathogen infection. The loop-mediated isothermal amplification（LAMP） of DNA is currently one of the most commonly used molecular diagnostic tools, as it is simple, quick, and easy to amplify target DNA under isothermal conditions. In the present study, a novel and highly specific LAMP assay for the sensitive and rapid detection of VHSV and MABV infection in fish was developed. Using a set of synthesized primers matching a specific region of the genome, the efficiency and specificity of the LAMP assay were optimized in terms of the reaction temperature and DNA polymerase concentration, as they are the main determinants of the sensitivity and specificity of the LAMP assay. In particular, we demonstrated that our assay could be applied to efficient detection of VHSV and MABV infection in the wild fish, Paralichthys olivaceus. Our results demonstrate the simplicity and convenience of this method for the detection of viral infection in aquatic organisms.

关键词： viral hemorrhagic septicaemia virus(VHSV) marine birnavirus(MABV) polymerase chain reaction loop-mediated isothermal amplification

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Right or left hepatectomy: a continuing question in the era of pure laparoscopic donor hepatectomy

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Hepatobiliary Surgery and Nutrition 2024年第4期13卷 718-720页

作者： suk Kyun Hong YoungRok Choi Nam-Joon Yi Kwang-Woong Lee Kyung-suk suh Department of Surgery Seoul National University College of MedicineSeoulKorea

We read with great interest the article by Fujiki et *** in the Annals of Surgery(1),which advocates for the use of a left liver graft with a pure laparoscopic donor hepatectomy(PLDH)approach to reduce the burden on living *** invasive techniques,including laparoscopic surgery,have been increasingly adopted in donor hepatectomy for liver *** reflects a broader trend in various surgical fields to enhance patient outcomes both cosmetically and *** the first report of a PLDH in the form of a left lateral sectionectomy in 2002(2),this approach has expanded to include full left and full right hepatectomies(3,4).With advancements in laparoscopic instruments and growing experience,PLDH has become a standard practice for left lateral section grafts,as recognized by the most recent international consensus guideline(5).However,PLDH for full left and full right grafts has not yet reached the same level of *** performed in Asian countries,PLDH for these grafts highlights differences in donor and recipient characteristics compared to Western *** studies and evidence are required to confirm the safety and feasibility of PLDH for full left and full right grafts on a broader scale.

关键词： Donor hepatectomy laparoscopy living donor liver transplantation right hepatectomy left hepatectomy

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Phenol content,antioxidant and tyrosinase inhibitory activity of mangrove plants in Micronesia

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Asian Pacific Journal of Tropical Medicine 2014年第7期7卷 531-535页

作者： Sung-suk suh Jinik Hwang Mirye Park Heung-Sik Park Taek-Kyun Lee South Sea Environment Research Department.Korea Institute of Ocean Science and Technology Korea South Pacific Ocean Research Center Korea Institute of Ocean Science and Technology

Objective:To find out and compare the in vitro antioxidant and tyrosinase inhibitory activities of two species of mangrove ***:Mangrove samples were harvested at the shoreline on the island of Weno,Chuuk State in *** phenol content,antioxidant activity(based on DPPH-free radical scavenging)and tyrosinase inhibitory activity in different tissues(leaves,barks and roots)of Rhizophora stylosa(***)and Sonneratia alba(***),collected from the island of ***:Total phenol content ranged from 4.87 to 11.96 mg per g of freeze dried *** highest antioxidant activity was observed in *** bark(85.5%).The highest tyrosinase inhibitory activity was found in *** ***,total phenol content and antioxidant activity were higher in methanol extracts than in aqueous ***:Taken together,the results of this study proved that mangroves can be excellent sources of antioxidant compounds.

关键词： Rhizophora stylosa Sonneratia alba Phebolics Antioxidant activity Tyrosinase inhibitory activity

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Pretransplantation fetal-maternal microchimerism in pediatric liver transplantation from mother

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World Journal of Gastroenterology 2017年第45期23卷 8017-8026页

作者： Nam-Joon Yi Min-Su Park Eun Young Song Hye Young Ahn Jeik Byun Hyeyoung Kim suk Kyun Hong Kyungchul Yoon Hyo-Sin Kim Sung-Woo Ahn Hae won Lee Young Rok Choi Kwang-Woong Lee Kyung-suk suh Myoung Hee Park Department of Surgery Seoul National University College of Medicine Department of Surgery Kyung Hee University School of Medicine Department of Laboratory Medicine Seoul National University College of Medicine Korea Organ Donation Agency Laboratory

AIM To investigate the rates of pretransplantation fetalmaternal microchimerism(MC) and its effect on rejection in children receiving maternal liver grafts. METHODS DNA or blood samples before liver transplantation(LT) were available in 45 pediatric patients and their mothers. The presence of pretransplantation MC to non-inherited maternal antigens(NIMAs)(NIMA-MC) in the peripheral blood was tested using nested PCRsingle-strand conformation polymorphism analysis for the human leukocyte antigen(HLA)-DRB1 alleles. NIMA-MC was successfully evaluated in 26 of the 45 children. Among these 45 pediatric LT recipients,23 children(51.1%) received transplants from maternal donors and the other 22 from non-maternal *** Among these 26 children,pretransplantation NIMAMC was detected in 23.1%(n = 6),6.1(range,0.8-14) years after birth. Among the children with a maternal donor,the rate of biopsy-proven cellular rejection(BPCR) was 0% in patients with NIMA-MC positivity(0/3) and those with HLA-DR identity with the mother(0/4),but it was 50% in those with NIMA-MC negativity(5/10). Patients with NIMA-MC positivity or HLA-DR identity with the mother showed significantly lower BPCR rate compared with NIMA-MC-negative patients(0% vs 50%,P = 0.04). NIMA-MC-positive patients tended to show lower BPCR rate compared with NIMAMC-negative patients(P = 0.23). CONCLUSION The presence of pretransplantation NIMA-MC or HLADR identity with the mother could be associated with BPCR-free survival in pediatric recipients of LT from maternal donors.

关键词： Liver transplantation Microchimerism Maternal graft Graft survival Non-inherited maternal antigen Biopsy-proven cellular rejection

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Detection of coat protein gene of nervous necrosis virus using loopmediated isothermal amplification

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Asian Pacific Journal of Tropical Medicine 2016年第3期9卷 230-235页

作者： Jinik Hwang Sung-suk suh Mirye Park Myung-Joo Oh Jong-Oh Kim sukchan Lee Taek-Kyun Lee South Sea Environment Research Department Korea Institute of ocean science & technology Korea University of Science and Technology Department of Aqualife Medicine Chonnam National University Department of Genetic Engineering Sungkyunkwan University

Objective:To establish a novel and highly specific loop-mediated isothermal amplification(LAMP) assay for the identification of nervous necrosis virus(NNV) ***:A set of synthesized primers was used to match the sequences of a specific region of the nnr gene from the National Center for Biotechnology Information database,not originating from NNV-infected fish,the efficiency and specificity of LAMP were measured dependent on the concentration of DNA polymerase and the reaction temperature and *** addition,to determine species-specific LAMP primers,cross reactivity testing was applied to the reaction between NVV and other virus families including viral hemorrhagic septicemia virus and marine ***:The optimized LAMP reaction carried out at 64 ℃ for 60 min,and above 4 U Bst DNA *** sensitivity of LAMP for the detection of nnv was thus about 10 times greater than the sensitivity of polymerase chain *** LAMP assay primers were specific for the detection NNV infection in Epinephelus ***:The development of LAMP primers based on genetic information from a public database,not virus-infected samples,may provide a very simple and convenient method to identify viral infection in aquatic organisms.

关键词： Nervous necrosis virus Nodaviridae Polymerase chain reaction Loop-mediated isothermal Amplification

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