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Asian Journal of Andrology 2020年第3期22卷 280-286页

作者： Young Ju Lee Jin-woo Jung Sangchul Lee Sang wook Lee Jeong Hyun Kim Sung Kyu Hong seok-Soo Byun Sang Eun Lee Seong Jin Jeong Departme nt of Urology Seoul National University Bundang HospitalSeongnam 13620Korea Department of Urology Catholic Kwan dong Univerisity International St.Mary's HospitalIncheon 22711Korea Department of Urology Kangwon National University School of MedicineChuncheon 24341Korea.

We evaluated contemporary trends in radical prostatectomy(RP)in men aged>70 years and investigated associations of selected variables with recovery of urinary continence(UC)in two age groups:>70 and70 years[n=610]vs70 years gradually increased up to 30.0%,and the rate of robot-assisted RP and neurovascular bundle(NVB)saving increased continually to 80.0%and 67.4%of older patients,*** the rate of recovery of UC within 12 months(3 months)in patients aged>70 years was lower than that in those aged S70 years(81.5%[52.6%]vs 88.6%[60.9%],respectively;both P70 ***,unlike younger patients,only variables(age and MUL),possibly associated with the inhere nt fun ction of the urinary sphi ncter,were predictors of recovery of UC in patients aged>70 years.

关键词： elderly predictor prostate cancer radical prostatectomy urinary incontinence

Long-term observation of the mineral trioxide aggregate extrusion into the periapical lesion:a case series

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International Journal of Oral Science 2013年第1期5卷 54-57页

作者： seok-woo Chang Tae-seok Oh wooCheol Lee Gary Shun-Pan Cheung Hyeon-Cheol Kim Department of Conservative Dentistry School of DentistryKyung Hee University Department of Conservative Dentistry The Institute of Oral Health ScienceSamsung Medical CenterSungkyunkwan University School of Medicine Department of Conservative Dentistry School of DentistryDental Research InstituteSeoul National University Area of Endodontics Faculty of Dentistrythe University of Hong Kong Department of Conservative Dentistry School of DentistryPusan National UniversityDental Research Institute

One-step apexification using mineral trioxide aggregate(MTA) has been reported as an alternative treatment modality with more benefits than the use of long-term calcium hydroxide for teeth with open ***,orthograde placement of MTA is a challenging procedure in terms of length *** case series describes the sequence of events following apical extrusion of MTA into the periapical area during a one-step apexification procedure for maxillary central incisor with an infected immature *** long-term observation revealed complete resolution of the periapical radiolucent lesion around the extruded *** cases revealed that direct contact with MTA had no negative effects on healing of the periapical ***,intentional MTA overfilling into the periapical lesion is not to be recommended.

关键词： extrusion immature apex mineral trioxide aggregate one-step apexification open apex periapical healing

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Effect of open-field experimental warming on the leaf phenology of oriental oak (Quercus variabilis) seedlings

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Journal of Plant Ecology 2014年第6期7卷 559-566页

作者： Saerom Han Haegeun Chung Nam Jin Noh Sun Jeoung Lee wooyong Jo Tae Kyung Yoon Koong Yi Chan-woo Park Suin Ko Yowhan son Department of Environmental Science and Ecological Engineering Graduate SchoolKorea UniversitySeoul 136-713Korea Department of Environmental Engineering Konkuk UniversitySeoul 143-701Korea River Basin Research Center Gifu UniversityGifu 501-1193Japan Forest and Climate Change Center Korea Forest Research InstituteSeoul 130-712Korea Hanlim Patent and Law Office Seoul 152-050Korea Forest Soil and Water Conservation Division Korea Forest Research InstituteSeoul 130-712Korea Environmental Policy Research Group Korea Environment InstituteSeoul 122-706Korea

Aims An open-field warming experiment enables us to test the effects of projected temperature increase on change in plant phenology with fewer confounding factors and to study phenological response to temperature ranges beyond natural *** study aims to(i)examine the effect of temperature increase on leaf unfold-ing and senescence of oriental oak(Quercus variabilis Blume)under experimental warming and(ii)measure temperature-related parameters used in estimating phenological response to tempera-ture *** Using an open-field warming system with infrared heaters,we increased the air temperature by~3℃ in the warmed plots compared with that of the control plots consistently for 2 *** unfolding and senescence dates of *** seedlings were recorded and temperature-related phenological parameters were *** Findings The timing of leaf unfolding was advanced by 3-8 days(1.1-3.0 days/℃)and the date of leaf senescence was delayed by 14-19 days(5.0-7.3 days/℃)under elevated air ***,the cumulative degree days(CDD)of leaf unfolding were not significantly changed by experimental warming,which suggest the applicability of a constant CDD value to estimate the change in spring leaf phe-nology under 3℃ *** ranges of advancement and temperature sensitivity in spring phenology and delayed autumn phe-nology and proposed temperature parameters from this study might be applied to predict future phenological change.

关键词： climate change cumulative degree days experimental warming leaf senescence leaf unfolding

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Gamichunggan汤对高血脂的作用

Acta Pharmacologica Sinica 2003年第2期24卷 133-139页

作者： son Chang-Gue CHOI woo-Jin SHIN Jang-woo HAN Seung-Hyun CHO Jung-Hyo sonG Kee-Cheol CHO Chong-Kwan Department of Internal Medicine College of Oriental Medicine Daejeon University Daejeon 301-724 Korea Department of Internal Medicine College of Oriental Medicine Daejeon University Daejeon 301-724 Korea nstitute of Traditional Medicine and Bioscience Daejeon University Daejeon 301-724 Korea International Vaccin Institute Seoul University Seoul Korea Department of Internal Medicine College of Oriental Medicine Daejeon University Daejeon 301-724 Korea Department of Internal Medicine College of Oriental Medicine Daejeon University Daejeon 301-724 Korea

AIM: To evaluate the therapeutic effects of Gamichunggantang (GCT) on hyperlipidemia through high cholesterol diet model. GCT is an Oriental herbal medication, which has been used for-the treatment of fatty liver, hyperlipidemia or alcoholic liver disease in Daejeon University Oriental Hospital, Korea since 1999. METHODS: Rats were fed with high cholesterol diet for 4 weeks and GCT was administrated for 2 weeks from 2 weeks later in expermental days. The levels of serum total cholesterol, HDL-cholesterol, and triglyceride were analyzed every week. Absolute and relative liver weight to body, and histophathological changes were determined at last day. And, lipid metabolism-related gene expressions (ACAT and DGAT) in liver tissue were analyzed by using RT-PCR. RESULTS:In GCT group, TG levels were reduced at 3 and 4 weeks after GCT administration (39.4%, P<0.05 and 36.3%,P<0.01 respectively). Total cholesterol levels also were reduced at 3 weeks (20.5%, P<0.05) and 4 weeks (35.86%, P<0.01) after GCT administration, but HDL-cholesterol levels were increased significantly (P<0.05) at 3 weeks(14.7%) and 4 weeks (25.5%) compared with hyperlipidemia-induced group without GCT. In the GCT treated group, liver weight was lower and lipid accumulation was decreased in histological finding. ACAT gene expression was suppressed compared with hyperlipidemia-induced group but not DGAT. CONCLUSION: GCT possesses preventive or therapeutic effects on diet-induced hypedipidemia by inhibiting the intestinal absorption and storage of exogenous and endogenous cholesterol.

关键词：高脂血症甘油三酯胆甾醇 O-酰基转移酶甾醇

Seroprevalence of anti-HAV among patients with chronic viral liver disease

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World Journal of Gastroenterology 2011年第2期17卷 236-241页

作者： Hyun Chin Cho Seung woon Paik Yu Jin Kim Moon seok Choi Joon Hyeok Lee Kwang Cheol Koh Byung Chul Yoo Hee Jung son Seon woo Kim Division of Gastroenterology Samsung Medical CenterSungkyunkwan University School of Medicine Division of Gastroenterology Center for Health PromotionSamsung Medical CenterSungkyunkwan University School of Medicine Biostatics Team Samsung Medical CenterSungkyunkwan University School of Medicine

AIM:To investigate the current seroprevalence of hepatitis A virus(HAV) antibodies in patients with chronic viral liver disease in *** also tried to identify the factors affecting the prevalence of HAV antibodies. METHODS:We performed an analysis of the clinical records of 986 patients(mean age:49±9 years,714 males/272 females) with chronic hepatitis B virus(HBV) or hepatitis C virus(HCV) infection who had undergone HAV antibody testing between January 2008 and December ***:The overall prevalence of IgG anti-HAV was 86.61%(854/986) in patients with chronic liver disease and was 88.13%(869/986) in age-and gendermatched patients from the Center for Health *** anti-HAV prevalence was 80.04%(405/506) in patients with chronic hepatitis B,86.96%(20/23) in patients with chronic hepatitis C,93.78%(422/450) in patients with HBV related liver cirrhosis,and 100%(7/7) in patients with HCV related liver *** anti-HAV prevalence according to the decade of age was as follows:20s(6.67%) ,30s(50.86%) ,40s(92.29%) ,50s(97.77%) ,and 60s(100%) .The antiHAV prevalence was significantly higher in patients older than 40 years compared with that in patients younger than 40 years of *** analysis showed that age≥40 years,female gender and metropolitan cities as the place of residence were independent risk factors for IgG anti-HAV seropositivity. CONCLUSION:Most Korean patients with chronic liver disease and who are above 40 years of age have already been exposed to hepatitis A virus.

关键词： Chronic hepatitis B Chronic hepatitis C Hepatitis A virus Korea Seroprevalence

Intraplate Strike-Slip Reactivation of the Sinnyeong Fault in the Cretaceous Gyeongsang Basin, Korea, Due to the Concentration of Later Compressional Stress

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Journal of Geoscience and Environment Protection 2013年第3期1卷 12-17页

作者： Youngbeom Cheon Cheol woo song son Kap Lee Jong-Sun Kim Moon son Department of Geological Sciences Pusan National University Busan South Korea

This study focuses on the geometry and kinematics of the Sinnyeong Fault which is the most conspicuous fault among the WNW-trending Gaeum Fault System in the Gyeongsang Basin,SE Korea. The fault is traced for over ca.70 kmand has a consistent WNW-trending strike with a nearly vertical dip. It has an asymmetric fault damage zone of several meters to several tens of meters in width and a several meter-thick fault core. Its main movement is interpreted as sinistral-reverse oblique-slip or sinistral strike-slip under NE-SW compressional stress regime, although it could have experienced other faultings with different senses before/after this movement. Cylindrical folds, having the NW-trending fold axes of low angle plunge, are only observed along the southern damage zone of the fault with a continuous narrow width of several tens of meters. It is thus interpreted that the formation of the folds and sinistral movement of the fault were almost contemporaneously generated due to the concentration of the regional NE-SW compressional stress along pre-existing WNW-trending faults or densely populated fracture zone in a relatively stable intraplate region.

关键词： Sinnyeong Fault Sinistral-Reverse Oblique-Slip Compressional Stress Pre-Existing Fault

A conformal titanyl phosphate amorphous overlayer for enhancing photoelectrochemical hydrogen peroxide production

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Journal of Energy Chemistry 2023年第11期86卷 399-408,I0009页

作者： Jaekyum Kim Young Eun Kim Minyeong Je Won Tae Hong Chang-Lyoul Lee Tae-Hoon Kim Sung Min Cho Chang Hyuck Choi Heechae Choi woo-seok Choe Jung Kyu Kim School of Chemical Engineering Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea SKKU Advanced Institute of Nano Technology(SAINT) Sungkyunkwan University(SKKU)Suwon 16419Republic of Korea Theoretical Materials&Chemistry Group Institute of Inorganic ChemistryUniversity of CologneGreinstr.650939CologneGermany Advanced Photonics Research Institute(APRI) Gwangju Institute of Science and Technology(GIST)Gwangju 61005Republic of Korea Department of Materials Science and Engineering Chonnam National UniversityGwangju 61186Republic of Korea Department of Chemistry Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Institute for Convergence Research and Education in Advanced Technology(I-CREATE) Yonsei UniversitySeoul 03722Republic of Korea Department of Chemistry Xi’an Jiaotong-Liverpool UniversitySuzhou 215123JiangsuChina

Photoelectrochemical(PEC)H_(2)O_(2)production through water oxidation reaction(WOR)is a promising strategy,however,designing highly efficient and selective photoanode materials remains challenging due to competitive reaction ***,for highly enhanced PEC H_(2)O_(2)production,we present a conformal amorphous titanyl phosphate(a-TP)overlayer on nanoparticulate TiO_(2)surfaces,achieved via lysozyme-molded in-situ surface *** a-TP overlayer modulates surface adsorption energies for reaction intermediates,favoring WOR for H_(2)O_(2)production over the competing O_(2)evolution *** density functional theory calculations reveal that a-TP/TiO_(2)exhibits a substantial energy uphill for the O·*formation pathway,which disfavors O_(2)evolution but promotes H_(2)O_(2)***,the a-TP overlayer strengthens the built-in electric field,resulting in favorable ***,a-TP/TiO_(2)exhibits 3.7-fold higher Faraday efficiency(FE)of 63%at 1.76 V *** hydrogen electrode(RHE)under 1 sun illumination,compared to bare TiO_(2)(17%),representing the highest FE among TiO_(2)-based WOR H_(2)O_(2)production *** the a-TP overlayer constitutes a promising strategy for controlling reaction pathways and achieving efficient solar-to-chemical energy conversion.

关键词： Solar H_(2)O_(2) production In-situ surface reforming Titanyl phosphate Amorphous overlayer Reaction pathway control

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A dynamic infiltration technique to synthesize nanolayered cathodes for high performance and robust solid oxide fuel cells

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Journal of Energy Chemistry 2022年第7期31卷 201-210,I0006页

作者： Saeed Ur Rehman Ho-Seon song Hye-Sung Kim Muhammad Haseeb Hassan Dong-woo Joh Rak-Hyun song Tak-Hyoung Lim Jong-Eun Hong seok-Joo Park Seung-Bok Lee High Temperature Energy Conversion Laboratory Korea Institute of Energy Research152Gajeong-roYuseong-gu.Daejeon34129.Republic of Korea Department of Advanced Energy and System Engineering University of Science and Technology.217 Gajeong-ro.Yuseong-gu.Daejeon 34113.Republicof Korea

Solution infiltration is a popular technique for the surface modification of solid oxide fuel cell(SOFC)***,the synthesis of nanostructured SOFC cathodes by infiltration is a tedious process that often requires several infiltration and high temperature(≥500℃)calcination ***,fabricating large-area nanostructured cathodes via infiltration still requires serious ***,we propose a facile and scalable urea assisted ultrasonic spray infiltration technique for nanofabrication of SOFC *** is demonstrated that by using urea as a precipitating agent,the calcination after each infiltration cycle can be omitted and the next infiltration can be performed just after a drying step(≤100℃).Finally,the precipitates can be converted into a desired catalyst phase in single calcination thus,a nanostructured cathode can be fabricated in a much faster *** is also shown that the low calcination temperature of the cathode(≤900℃)can produce highly durable SOFC performance even without employing a Ce_(0.9)Gd_(0.1)O_(2)(GDC)diffusion barrier layer which provides the ease of SOFC *** coupling with an ultrasonic spray technique,the urea assisted infiltration can be scaled up for any desired cathode ***_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3) nanolayered cathode was fabricated and it was characterized by scanning electron microscope(SEM),X-ray diffraction(XRD),and transmission electron microscopy(TEM)*** showed the formation of a nanolayer cathode just after 5 cycles of the urea assisted infiltration while the XRD and TEM confirmed the phase and stoichiometric uniformity of the 100 nm cathode *** effectiveness of the newly developed technique was further verified by the stable operation of a GDC buffer layer free SOFC having an active cathode area of 25 cm^(2) during a 1200 h durability *** research outcomes propose urea assisted ultrasonic spray infiltration as a facile,scalable,and commercially viable method

关键词： Solid oxide fuel cell(SOFC) Cathode Infiltration Nanolayer Nanofabrication GDC barrier layer free SOFC

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Differential diagnosis of left-sided abdominal pain:Primary epiploic appendagitis vs colonic diverticulitis

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World Journal of Gastroenterology 2013年第40期19卷 6842-6848页

作者： Jeong Ah Hwang Sun Moon Kim Hyun Jung song Yu Mi Lee Kyung Min Moon Chang Gi Moon Hoon Sup Koo Kyung Ho song Yong seok Kim Tae Hee Lee Kyu Chan Huh Young woo Choi Young woo Kang woo Suk Chung Division of Gastroenterology and Hepatology Department of Internal MedicineKonyang University College of MedicineDaejeon 302-718South Korea Department of Diagnostic Radiology Konyang University College of MedicineDaejeon 302-718South Korea

AIM:To investigate the clinical characteristics of left primary epiploic appendagitis and to compare them with those of left colonic ***:We retrospectively reviewed the clinical records and radiologic images of the patients who presented with left-sided acute abdominal pain and had computer tomography(CT) performed at the time of presentation showing radiological signs of left primary epiploic appendagitis(PEA) or left acute colonic diverticulitis(ACD) between January 2001 and December 2011. A total of 53 consecutive patients were enrolled and evaluated. We also compared the clinical characteristics,laboratory findings,treatments,and clinical results of left PEA with those of left ***:Twenty-eight patients and twenty-five patients were diagnosed with symptomatic left PEA and ACD,respectively. The patients with left PEA had focal abdominal tenderness on the left lower quadrant(82.1%). On CT examination,most(89.3%) of the patients with left PEA were found to have an oval fatty mass with a hyperattenuated ring sign. In cases of left ACD,the patients presented with a more diffuse abdominal tenderness throughout the left side(52.0%vs 14.3%; P = 0.003). The patients with left ACD had fever and rebound tenderness more often than those with left PEA(40.0% vs 7.1%,P = 0.004; 52.0% vs14.3%,P = 0.003,respectively). Laboratory abnormalities such as leukocytosis were also more frequently observed in left ACD(52.0% vs 15.4%,P = 0.006).CONCLUSION:If patients have left-sided localized abdominal pain without associated symptoms or laboratory abnormalities,clinicians should suspect the diagnosis of PEA and consider a CT scan.

关键词： Acute abdomen Differential diagnosis Appendix epiploica Colonic diverticulitis Multidetector computed tomography

Intestinal endometriosis:Diagnostic ambiguities and surgical outcomes

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World Journal of Clinical Cases 2019年第4期7卷 441-451页

作者： Jun woo Bong Chang Sik Yu Jong Lyul Lee Chan wook Kim Yong Sik Yoon In Ja Park seok-Byung Lim Jin Cheon Kim Division of Colon and Rectal Surgery Department of SurgeryUniversity of Ulsan College of Medicine and Asan Medical Center

BACKGROUND Endometriosis is a common disease for women of reproductive age. However,when it involves intestines, it is difficult to diagnose preoperatively because its symptoms overlap with other diseases and the results of evaluations can be unspecific. Thus it is important to know the clinical characteristics of intestinal endometriosis and how to exactly *** To analyze patients in whom intestinal endometriosis was diagnosed after surgical treatments, and to evaluate the clinical characteristics of preoperatively misdiagnosed *** We retrospectively reviewed the pathologic reports of 30 patients diagnosed as having intestinal endometriosis based on surgical specimens between January2000 and December 2017. We reviewed their clinical characteristics and surgical *** Twenty-three(76.6%) patients showed symptoms associated with endometriosis,with dysmenorrhea being the most common(n = 9, 30.0%). Thirteen patients(43.3%) had a history of pelvic surgeries. Ten patients(33.3%) had a history of treatment for endometriosis. Only 4 patients(13.3%) had a diagnosis of endometriosis based on endoscopic biopsy findings. According to preoperative evaluations, 13 patients(43.3%) had an initial diagnosis of pelvic endometriosis and 17 patients(56.6%) were misdiagnosed as having other diseases. The most common misdiagnosis was submucosal tumor in the large intestine(n = 8, 26.7%),followed by malignancies of the colon/rectum(n = 3, 10.0%) and ovary(n = 3,10.0%). According to the Clavien-Dindo classification, 5 complications were grade I or II and 2 complications were grade IIIa. The median follow-up period was 26.9(0.6-132.1) mo, and only 1 patient had a recurrence of *** Intestinal endometriosis is difficult to diagnose preoperatively because it mimics various intestinal diseases. Thus, if women of reproductive age have ambiguous symptoms and signs with nonspecific radiologic and/or endoscopic findings,intestinal endometriosis sho

关键词： Endometriosis Intestinal endometriosis Diagnosis Surgery Treatment