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Favorable surgical treatment outcomes for chronic constipation with features of colonic pseudo-obstruction

World Journal of Gastroenterology 2012年第32期18卷 4441-4446页

作者： Eon Chul Han Heung-Kwon Oh Heon-Kyun Ha Eun kyung Choe Sang Hui moon Seung-Bum Ryoo Kyu Joo Park Department of Surgery Seoul National University College of MedicineSeoul 110-744South Korea Seoul National University Hospital Gangnam Center Seoul 110-744South Korea

AIM:To determine long-term outcomes of surgical treatments for patients with constipation and features of colonic ***:Consecutive 42 patients who underwent surgery for chronic constipation within the last 13 years were prospectively *** identified a subgroup with colonic pseudo-obstruction(CPO) features,with dilatation of the colon proximal to the narrowed transitional zone,in contrast to typical slowtransit constipation(STC),without any dilated colonic *** outcomes of surgical treatments for chronic constipation with features of CPO were analyzed and compared with outcomes for ***:Of the 42 patients who underwent surgery for constipation,33 patients had CPO with dilatation of the colon proximal to the narrowed transitional *** were 16 males and 17 females with a mean age of 51.2 ± 16.1 *** had symptoms of chronic intestinal obstruction,including abdominal distension,pain,nausea,or vomiting,and the mean duration of symptoms was 67 mo(range:6-252 mo).Preoperative defecation frequency was 1.5 ± 0.6 times/wk(range:1-2 times/wk).Thirty-two patients underwent total colectomy,and one patient underwent diverting transverse *** was no surgery-related *** histologic examination showed hypoganglionosis or agangliosis in 23 patients and hypoganglionosis combined with visceral neuropathy or myopathy in 10 *** contrast,histology of STC group revealed intestinal neuronal dysplasia type B(n = 6) and visceral myopathy(n = 3).Early postoperative complications developed in six patients with CPO;wound infection(n = 3),paralytic ileus(n = 2),and intraabdominal abscess(n = 1).Defecation frequencies 3 mo after surgery improved to 4.2 ± 3.2 times/d(range:1-15 times/d).Long-term follow-up(median:39.7 mo) was available in 32 patients;all patients had improvements in constipation symptoms,but two patients needed intermittent medication for management of *** 32 patients had distinct

关键词： Constipation Total colectomy Pseudoobstruction Surgical outcome Hypoganglionosis

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Formation of photo-reactive heterostructure from a multicomponent amorphous alloy with atomically random distribution

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Journal of Materials Science & Technology 2022年第14期109卷 245-253页

作者： Hae Jin Park Hee Jin Lee Tae kyung Kim Sung Hwan Hong Wei-min Wang Taek Jib Choi Ki Buem Kim Department of Nanotechnology and Advanced Materials Engineering Sejong University209 Neung dong-roGwangjin-guSeoul 05006Republic of Korea Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of EducationShandong UniversityJinan 250061China

In this study,metallic glass is designed tunable for promising functional applications via a facile and stable,one-step *** approach about alloy design and process is based on the unique properties of the Ti-Cu-Ni-Sn metallic glass that are afforded by the varying oxygen affinities of the four constituent *** metallic glass exhibits homogeneous nucleation of oxides and uniform formation of the various metal *** alloy design and hydrothermal synthesis to customize the metallic glasses are the most critical factors that determine the characteristics of the metal oxides and the resulting nanostructures and photoelectrode *** enables the desired element to be selectively grown via a facile single-step *** results provide a promising road map for the application of metallic glasses to photoelectrochemical(PEC)solar water splitting,as well as various other new possibilities.

关键词： Metallic glass Alloy design Hydrothermal synthesis Metal oxide Water splitting

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Clinical course of sub-centimeter-sized nodules detected during surveillance for hepatocellular carcinoma

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World Journal of Gastroenterology 2012年第21期18卷 2654-2660页

作者： Yang Won min Geum-Youn Gwak min Woo Lee moon Seok Choi Joon Hyoek Lee Kwang Cheol Koh Seung Woon Paik Byung Chul Yoo Department of Medicine Samsung Medical Center Sungkyunkwan University School of MedicineSeoul 135-710 South Korea Department of Radiology Samsung Medical Center Sungkyunkwan University School of MedicineSeoul 135-710 South Korea

AIM: To evaluate the outcome of sub-centimeter-sized nodules (SCSNs) detected during surveillance for hepatocellular carcinoma (HCC) in patients at risk. METHODS: We retrospectively analyzed a total of 142 patients with liver cirrhosis or chronic hepatitis B or C without a prior history of HCC in whom a SCSN was detected during HCC surveillance. We calculated the rate of HCC development from SCSNs in the study population and analyzed the differences in the baseline clinical characteristics and imaging features between the patients with SCSNs that eventually developed into HCC and patients with SCSNs that did not develop into ***: During 667 person-years of follow-up, HCC developed in 33 patients. The calculated HCC development rate was 4.9% per year. The cumulative one-, two-, three- and five-year HCC development rates were 5.6%, 10.6%, 14.1% and 20.4%, respectively. Upon baseline comparison, the HCC group was older (54.4 ± 8.3 years vs 48.9 ± 9.4 years; P = 0.003) and had lower albumin levels (3.56 ± 0.58 g/dL vs 3.84 ± 0.55 g/dL; P = 0.012) and higher baseline alpha-fetoprotein (AFP) levels (8.5 ng/mL vs 5.4 ng/mL; P = 0.035) compared to the non-HCC group. Nodule pattern and initial radiologic diagnosis also differed between the two groups. Multivariate analysis revealed that age [P = 0.012, odds ratio (OR) =1.075, 95% confidence interval (CI) =1.016-1.137], sex (P = 0.009, OR = 3.969, 95% CI: 1.403-11.226), and baseline AFP level (P = 0.024, OR = 1.039, 95% CI: 1.005-1.073) were independent risk factors for developing HCC. CONCLUSION: The overall risk of HCC development in patients with SCSNs is similar to that in liver cirrhosis patients. Patients with these risk factors need to be closely monitored during follow-up.

关键词： Chronic liver disease Hepatocellular carcinoma Risk factor Sub-centimeter-sized nodule

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Nutrition Programs through Public Health Centers in Korea

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Biomedical and Environmental Sciences 1996年第2期9卷 276-289页

作者： HYUN-kyung moon (Department of Food and Nutrition Science, Dankook University,Hannamdong 8 Yongsankoo, Seoul, 140-714 Korea) Department of Food and Nutrition Science Dankook University Seoul Korea.

In the peroid of confusion after the Korean War, there was an absolute shortage in the volume of food. The intake of energy and all other nutrients fell short of the recommended dietary intake. To solve the food shortage, there were many food assistant programs through the government channel. With the economic developments during past years, now, there are enough foods for everyone. Thus, food assistant program, which has been the only nutrition program in the government, is no longer needed except for low-income ***, there are not enough nutrition programs in the government. In 1994, about 30 public health center start nutrition programs with the help of Korean Dietetic *** this study, kinds of nutrition programs, age, sex and number of participants, the content of programs are studied. The effects of nutrition programs are partially ***, problems with current nutrition programs are discussed. Finally, future directions of nutrition programs in the public health centers are discussed

关键词： PHC Nutrition Programs through Public Health Centers in Korea

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New prognostic model for patients with advanced gastric cancer:Fluoropyrimidine/platinum doublet for first-line chemotherapy

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World Journal of Gastroenterology 2021年第48期27卷 8357-8369页

作者： Dong-Hoe Koo min-Hee Ryu Mi-Yeon Lee Mee-Sun moon Yoon-Koo Kang Division of Hematology/Oncology Department of Internal MedicineKangbuk Samsung HospitalSungkyunkwan University School of MedicineSeoul 03181South Korea Department of Oncology Asan Medical CenterUniversity of Ulsan College of MedicineSeoul 05505South Korea Division of Biostatistics Department of R&D ManagementKangbuk Samsung HospitalSeoul 03181South Korea

BACKGROUND New prognostic factors have been reported in patients with metastatic or recurrent gastric cancer(MRGC),necessitating modifications to the previous prognostic *** To develop a new model,MRGC patients who received fluoropyrimidines/platinum doublet chemotherapy between 2008 and 2015 were *** A total of 1883 patients was divided into a training set(n=937)and an independent validation set(n=946).RESULTS Multivariate analysis showed that the following six factors were associated with poor overall survival(OS)in the training set:Eastern Cooperative Oncology Group performance score≥2 and bone metastasis(2 points each),peritoneal metastasis,high alkaline phosphatase level,low albumin level,and high neutrophil-lymphocyte ratio(1 point each).A prognostic model was developed by stratifying patients into good(0-1 point),moderate(2-3 points),and poor(≥4 points)risk *** the validation set,the median OS of the three risk groups was 15.8,10.1,and 5.7 mo,respectively,and those differences were significant(P<0.001).CONCLUSION We identified six factors readily measured in clinical practice that are predictive of poor prognosis in patients with *** new model is simpler than the old and more easily predicts OS.

关键词： Stomach neoplasms Chemotherapy Prognosis Validation Gastric cancer

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Extract from Zanthoxylum piperitum Induces Apoptosis of AGS Gastric Cancer Cells through Akt/MDM2/p53 Signaling Pathway

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Chinese Journal of Integrative Medicine 2021年第10期27卷 752-759页

作者： Ye Seul Park Gun He Nam kyung Jo Jo Hye Won Kawk Sang Yung Kim Young min Kim Department of Biological science and Biotechnology College of Life science and Nano TechnologyHannam University1646 Yuseong-daeroYuseong-guDaejeon 34054South Korea Department of Food Science&Bio Technology Shinansan UniversityDeahakro Danwon-guAnsan-CityGyenggi-doKorea

Objective:To determine the effect of Zanthoxylum piperitum extracet(ZPE)on apoptosis and analyze anticancer substances in ZPE,changes in proteins related to apoptosis,and pathological changes in tumors in ***:Fifteen 4-week-old female BALB/c nu/nu mice were divided into 3 groups depending on ZPE dose,with 5 in each *** gastric carcinoma cells(1 x 10^(6) cells/200 jxL)were subcutaneously injected into the flank of each *** week after the injection of AGS cells,ZPE was administered to the skin tissue[10 or 50 mg/(kg-d)]in the low-and high-dose groups,respectively for 20 *** animals were injected with vehicle *** 3 weeks,the tumor was extracted and carried out for immunohistochemistry,the tendency of apoptosis and p53 in the body was checked using TdT-mediated dUTP nick-end labeling(TUNEL)*** 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide(MTT)assay,annexin V dead cell staining,cell cycle arrest and Western blotting,AGS gastric carcinoma cells were incubated with various concentrations of ZPE for 24 *** survival rates were analyzed by MTT *** was analyzed using annexin V dead cell staining and cell cycle arrest and measured using Muse cell ***:High performance liquid chromatography(HPLC)analysis showed that ZPE contained organic sulfur compounds such as alliin and *** assay results revealed that ZPE(10-85»xg/mL)could effectively inhibit the growth of AGS gastric cancer cells at higher concentrations(P<0.05,P<0.01).The annexin V&dead cell staining assay and cell cycle arrest assay confirmed a dose-dependent increase in the apoptosis rate and G!phase in ZPE(10-70 jig/mL)*** decreased the expression of anti-apoptotic proteins(p-Akt,p-MDM2,Bcl-2),while increased pro-apoptotic proteins(cleaved PARP,p53,pro-Caspase 3,Bax).TUNEL assays revealed an increase in cell *** staining confirmed the involvement of ***:ZPE decreases AGS cell

关键词： AGS gastric cancer cells Zanthoxylum piperitum apoptosis Akt/MDM2/p53 signaling pathway active compounds

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Solution-processed highly adhesive graphene coatings for corrosion inhibition of metals

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Nano Research 2019年第1期12卷 19-23页

作者： Gi-Cheol Son Deuk-Kyu Hwang Jaewon Jang Sang-Soo Chee Kyusang Cho Jae-min Myoung moon-Ho Ham School of Materials Science and Engineering Gwangju Institute of Science and Technology(GIST)123 Cheomdangwagi-roBuk-guGwangju 61005Republic of Korea Research Institute for Solar and Sustainable Energies Gwangju Institute of Science and Technology(GIST)123 Cheomdangwagi-roBuk-gut Gwangju 61005Republic cf Korea Department of Materials Science and Engineering Yonsei University50 Yonsei-roSeodaemun-guSeoul 03722Republic of Korea

The corrosion of metals can be induced by different environmental and operational conditions,and protecting metals from corrosion is a serious concern in many *** developme nt of new materials and/or tech no logies to improve the efficie ncy of anti-corrosi on coati ngs has attracted ren ewed in *** this study,we develop a protective coati ng composed of a bilayer structure of reduced graphe ne oxide(RGO)/graphene oxide(GO)applied to Cu plates by spray-coating and subsequent *** annealing of the GO/Cu plates at 120℃produces a bilayer structure of RGO/GO by the partial reducti on of the spray-coated GO *** in duces superior corrosion resista nee and adhesi on strength compared to those of GO/Cu and RGO/Cu plates because of the hydrophobic n ature of the RGO surface exposed to the surroundings and the formation of Cu-O bonds with the O-based functional groups of *** approach provides a viable and scalable route for using graphene coatings to protect metal surfaces from corrosion.

关键词： graphene metal surface coating corrosion solution process

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Early bifurcation of hepatic artery in right-sided living-donor hepatectomy at Asan Medical Center: rarely a critical issue

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Hepatobiliary Surgery and Nutrition 2024年第3期13卷 520-522页

作者： Deok-Bog moon Gil-Chun Park Sang Hoon Kim Sung-min Kim Division of Hepatobiliary Surgery and Liver Transplantation Department of SurgeryAsan Medical CenterUniversity of Ulsan College of MedicineSeoulKorea

In living donor liver transplantation(LDLT),early bifurcation of hepatic artery(HA)relative to the cutting line of bile duct(BD)requires additional skeletonization of the hilar plate,especially around BD,compared to opposite ***,it may preclude higher chances of biliary complications such as bile leak and biliary stenosis in the ***,donor surgeons should be well aware of the anatomical correlations among HA,BD,and portal vein(PV),based on preoperative 3-dimensional(3D)images,and also intraoperatively perform meticulous dissection of HA from the surrounding tissues and minimize the damage of microcirculation to the BD without using energy devices such as electrocautery(1).When extensive dissection around BD&its ischemic damage in the donor is expected to obtain single HA opening of the harvesting graft,we prefer separate two HA openings including right anterior and posterior HAs to single right HA(RHA)opening without skeletonization of donor’s BD.

关键词： Living donor liver transplantation(LDLT) hepatic artery(HA) early bifurcation right-sided living-donor

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Preface to the Special Issue:Climate Change and Variability of Tropical Cyclone Activity

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Advances in Atmospheric Sciences 2022年第2期39卷 203-204页

作者： Liguang WU Bin WANG Johnny CLCHAN kyung-Ja HA Il-Ju moon Jun MATSUMOTO Zhemin TAN Ke FAN Department of Atmospheric and Oceanic Sciences Fudan UniversityShanghai 200438China International Pacific Research Center School of Ocean and Earth Science and TechnologyUniversity of HawaiiHonoluluHI 96822USA School of Energy and Environment City University of Hong KongHong KongChina Research Center for Climate Sciences Pusan National UniversityBusan 46241South Korea Typhoon Research Center Jeju National UniversityJeju 63243South Korea Research Center for Climatology Department of GeographyTokyo Metropolitan UniversityTokyo 192-0392Japan School of Atmospheric Sciences Nanjing UniversityNanjing 210023China School of Atmospheric Sciences Sun Yat-Sen UniversityZhuhai 519082China

Tropical cyclones(TCs) are one of the most destructive natural phenomena on Earth in terms of human-life and economic losses. It is currently a matter of prodigious public and scientific interest how TC activity has changed and will change in a warming climate. This special issue focuses on a challenging subject raised in the Intergovernmental Panel on Climate Change(IPCC) report and numerous research papers.

关键词： warming Earth raised

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Protective effects of edible insect protein extracts from Protaetia brevitarsis against H_(2)O_(2)-induced oxidative stress in mouse C2C12 myoblast cells

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Food Bioscience 2023年第2期52卷 435-443页

作者： Jae Hoon Lee Tae-kyung Kim min-Cheol Kang Bum-Keun Kim Yun-Sang Choi Research Group of Food Processing Korea Food Research InstituteWanju55365Republic of Korea

Edible insects have been attracting significant attention not only for their nutritional superiority but also for their excellent bio-functional *** this study,the apoptotic protective effects of water-soluble protein(WPB)and salt-soluble protein(SPB)extracts derived from Protaetia brevitarsis against hydrogen peroxide(H_(2)O_(2))-induced oxidative stress in C2C12 cells were *** and SPB were confirmed to exhibit radical scavenging and ferric-ion reducing *** addition,WPB and SPB treatments effectively restored the decreased cell viability of the C2C12 cells induced by H2O2 treatment,and showcased protective effects against apoptosis and mitochondrial dysfunction by regulating the expressions of pro-and anti-apoptotic ***,our data indicated that protein extracts from Protaetia brevitarsis could be beneficial for the prevention and treatment of diseases associated with apoptosis induced by oxidative stress.

关键词： Edible insect protein extract Protaetia brevitarsis Antioxidant Anti-Apoptosis C2C12 myoblast cells

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