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World Journal of Gastroenterology 2006年第41期12卷 6689-6692页

作者： Seok-Byung Lim seung-Yong Jeong Il-Jin kim Dae Yong kim Kyung Hae Jung Hee Jin Chang Hyo Seong Choi Dae Kyung Sohn Hio Chung Kang Yong Shin Sang-Geun Jang Jae-Hyun Park Jae-Gahb Park Research Institute and Hospital National Cancer CenterGoyangKorea Cancer Research Institute and Cancer Research Center Seoul National UniversitySeoulKorea

AIM： To evaluate the usefulness of denaturing high performance liquid chromatography （DHPLC） for analyzing microsatellite instability （MSI） status in stool DNA of patients with colorectal cancer. METHODS： A total of 80 cancer tissues from patients with primary sporadic colorectal tumor （proximal cancer： 27, distal cancer： 53） and matched stool （which were employed for comparison with the tissues） were analyzed for MSI status in BAT 26. DNA samples extracted from stool were evaluated by nested polymerase chain reaction （PCR） and DHPLC for MSI analysis. RESULTS： Six cases （7.5%） of MSI were identified in BAT 26 from 80 cancer tissues. All the stool DNA samples from patients whose cancer tissue showed IVlSI also displayed MSI in BAT 26. CONCLUSION： As MSI is one of the established fecal DNA markers to screen colorectal cancer, we propose to use DHPLC for the IVlSI analysis in fecal DNA.

关键词： Colorectal cancer Denaturing high performance liquid chromatography Fecal DNA MicrosateUite instability Stool

Prevalence of clonorchiasis in patients with gastrointestinal disease: A Korean nationwide multicenter survey

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World Journal of Gastroenterology 2009年第1期15卷 86-94页

作者： Ho Gak kim Jimin Han Myung-Hwan kim Kyu Hyun Cho Im Hee Shin Gwang Ha kim Jae Seon kim Jin Bong kim Tae Nyeun kim Tae Hyeon kim Tae Hyo kim Jae Woo kim Ji Kon Ryu Young-Soo Moon Jong Ho Moon Sung Jae Park Chan Guk Park Sung-Jo Bang Chang Heon Yang Kyo-Sang Yoo Byung Moo Yoo Kyu Taek Lee Dong Ki Lee Byung Seok Lee Sang Soo Lee seung Ok Lee Woo Jin Lee Chang Min Cho Young-Eun Joo Gab Jin Cheon Young Woo Choi Jae Bok Chung Yong Bum Yoon Department of Internal Medicine Catholic University of Daegu School of Medicine Daegu 705-718 South Korea Department of Internal Medicine Asan Medical Center University of Ulsan College of Medicine Seoul 138-736 South Korea Department of Medical Statistics Catholic University of Daegu School of Medicine Daegu 705-718 South Korea Department of Internal Medicine Pusan National University School of Medicine Busan 602-739 South Korea Department of Internal Medicine Korea University College of Medicine Seoul 136-705 South Korea Department of Internal Medicine Hallym University College of Medicine Chuncheon 200-704 South Korea Department of Internal Medicine Yeungnam University College of Medicine Daegu 705-717 South Korea Department of Internal Medicine Wonkwang University College of Medicine Iksan Jeonbuk 570-711 South Korea Department of Internal Medicine Gyeongsang National University School of Medicine Jinju Gyeongnam 660-702 South Korea Department of Internal Medicine Yonsei University Wonju College of Medicine Wonju Gangwon 220-701 South Korea Department of Internal Medicine Seoul National University College of Medicine Seoul 110-799 South Korea Department of Internal Medicine lnje University College of Medicine Seoul 139-713 South Korea Department of Internal Medicine Soonchunhyang University College of Medicine Bucheon Gyunggi 420-767 South Korea Department of Internal Medicine Inje University College of Medicine Busan 614-735 South Korea Department of Internal Medicine Chosun University College of Medicine Gwangju Jeonbuk 501-717 South Korea Department of Internal Medicine Ulsan University Hospital University of Ulsan College of Medicine Ulsan 681-714 South Korea Department of Internal Medicine Dongguk University College of Medicine Gyeongju Gyeongbuk 791-707 South Korea Department of Internal Medicine Hallym University College of Medicine Anyang Gyeonggi 431-070 South Korea Department of Internal Medicine Ajou University School of Medicine Suwon

AIM： To investigate prevalence of C/onorchis sinensis in patients with gastrointestinal symptoms, and the relation of the infection to hepatobiliary diseases in 26 hospitals in Korea. METHODS： Consecutive patients who had been admitted to the Division of Gastroenterology with gastrointestinal symptoms were enrolled from March to April 2005. Of those who had been diagnosed with clonorchiasis, epidemiology and correlation between infection and hepatobiliary diseases were surveyed by questionnaire. RESULTS： Of 3080 patients with gastrointestinal diseases, 396 （12.9%） had clonorchiasis and 1140 patients （37.2%） had a history of eating raw freshwater fish. Of those with a history of raw freshwater fish ingestion, 238 （20.9%） patients had clonorchiasis. Cholangiocarcinoma was more prevalent in C. sinensis-infected patients than nonnfected patients [34/396 （8.6%） vs 145/2684 （5.4%）, P = 0.015]. Cholangiocarcinoma and clonorchiasis showed statistically significant positive cross-relation （P = 0.008）. Choledocholithiasis, cholecystolithiasis, cholangitis, hepatocellular carcinoma, and biliary pancreatitis did not correlate with clonorchiasis. CONCLUSION： Infection rate of clonorchiasis was still high in patients with gastrointestinal diseases in Korea, and has not decreased very much during the last two decades. Cholangiocarcinoma was related to clonorchiasis, which suggested an etiological role for the parasite.

关键词： Clonorchis sinensis Epidemiology Cholangiocarcinoma Korea Multicenter study Clonorchiasis

Protein interaction network related to Helicobacter pylori infection response

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World Journal of Gastroenterology 2009年第36期15卷 4518-4528页

作者： Kyu Kwang kim Han Bok kim Daeil Foreign Language High School Seoul 136-100South Korea Department of Biotechnology The Research Institute for Basic SciencesHoseo UniversityAsan 336-795 South Korea

AIM:To understand the complex reaction of gastric inflammation induced by Helicobacter pylori(H pylori) in a systematic manner using a protein interaction network. METHODS:The expression of genes significantly changed on microarray during H pylori infection was scanned from the web literary database and translated into proteins.A network of protein interactions was constructed by searching the primary interactions of selected *** constructed network was mathematically analyzed and its biological function was *** addition,the nodes on the network were checked to determine if they had any further functional importance or relation to other proteins by extending them. RESULTS:The scale-free network showing the relationship between inflammation and carcinogenesis was *** analysis showed hub and bottleneck proteins,and these proteins were mostly related to immune *** network contained pathways and proteins related to H pylori infection,such as the JAK-STAT pathway triggered by *** of nuclear factor (NF)-κB,TLR4,and other proteins known to function as core proteins of immune response were also found. These immune-related proteins interacted on the network with pathways and proteins related to the cell cycle,cell maintenance and proliferation,andtranscription regulators such as BRCA1,FOS,REL,and zinc finger *** extension of nodes showed interactions of the immune proteins with cancer- related *** extended network,the core network,a summarized form of the extended network, and cell pathway model were constructed. CONCLUSION:Immune-related proteins activated by H pylori infection interact with proto-oncogene *** hub and bottleneck proteins are potential drug targets for gastric inflammation and cancer.

关键词： Gastric cancer Helicobacter pylori Inflammation Pathway Protein interaction network

Novel monoclonal antibody against beta 1 integrin enhances cisplatin efficacy in human lung adenocarcinoma cells

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The Journal of Biomedical Research 2016年第3期30卷 217-224页

作者： Min-Young kim Woon-Dong Cho Kwon Pyo Hong Da Bin Choi Jeong won Hong Soseul kim Yoo Ri Moon seung-Myoung Son Ok-Jun Lee Ho-Chang Lee Hyung Geun Song Department of Pathology Chungbuk National University College of MedicineCheongju28644Republic of Korea Research Institute Chungbuk National University College of MedicineCheongju28644Republic of Korea

The use of anti-beta 1 integrin monoclonal antibody in lung cancer treatment has proven beneficial. Here, we developed a novel monoclonal antibody （mAb）, called P5, by immunizing mice with human peripheral blood mononuclear cells （PBMC）. Its anti-tumor effect is now being tested, in a clinical phase Ⅲ trial, in combinato- rial treatments with various chemical drugs. To confirm that P5 indeed binds to beta 1 integrin, cell lysates were immunoprecipitated with commercial anti-beta 1 integrin mAb （TS2/16） and immunoblotted against P5 to reveal a 140 kDa molecular weight band, as expected. Immunoprecipitation with P5 followed by LC/MS protein sequence analysis further verified P5 antigen to be beta 1 integrin. Cisplatin treatment upregulated cell surface expression of beta 1 integrin in A549 cells, while causing inhibition of cell growth. When cells were co-treated with different concentrations of P5 mAb, the cisplatin-mediated inhibitory effect was enhanced in a dose-dependent manner. Our findings show that a combinatorial treatment of P5 mAb and cisplatin in A549 cells resulted in a 30% increase in apoptosis, compared to baseline, and significantly more when compared to either the cisplatin or P5 alone group. The entire peptide sequences in CDR from variable region of Ig heavy and light chain gene for P5 mAb are also disclosed. Together, these results provide evidence of the beneficial effect of P5 mAb in combinatorial treatment of human lung adenocarcinoma.

关键词： CD29 beta 1 integrin lung adenocarcinoma monoclonal antibody cisplatin

Long term survivor of cerebellar glioblastoma multiforme:Case report

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Long term survivor of cerebellar glioblastoma multiforme:Cas...

The result of long term follow up in Malignant Meningiomas

中国抗癌协会神经肿瘤专业委员会第八届学术会议

作者： seung Hwan Lee Bong Jin Park Hyuk Jae Choi Seok Geun Choi Sung Bum kim Tae Sung kim Bong Arm Rhee Young-Jin Lim Department of Neurosurgery School of MedicineKyung Hee University Hospital

＜正＞Objective:It is well known that the glioblastoma multiforme（GBM） is hard to cure despite aggressive treatment application such as maximal surgical removal and concurrent chemoradiotherapy（CCRT）.Furthermore,w...

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The result of long term follow up in Malignant Meningiomas

Pb concentrations and isotopic compositions in the soil and sediments around the abandoned mine in southwest of Korea

中国抗癌协会神经肿瘤专业委员会第八届学术会议

作者： seung Hwan Lee Bong Jin Park Hyuk Jae Choi Seok Keun Choi Sung Bum kim Tae Sung kim Bong Arm Rhee Young Jin Lim Department of Neurosurgery School of MedicineKyung Hee University Hospital

＜正＞Objective:Malignant meningiomas are rare and have worse prognosis than benign meningiomas. Moreover,postoperative radiation therapy is widely accepted to be requisite for treatment *** analyzed the therapeutic e...

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Journal of Agricultural Chemistry and Environment 2013年第4期2卷 101-108页

作者： Jong-Woo Choi Eun-Jin Yoo Jee-young kim Jong-Yeon Hwang Khanghyun Lee Won-Seok Lee Jin-Seok Han Kyu-seung Lee Environmental Measurement & Analysis Center Department of Environmental Infrastructure Research National Institute of Envi- ronmental Research Incheon South Korea

This study was undertaken to investigate the influence of Pb contaminant dispersal from an abandoned mine. For the study, 23 samples of sediment and soil were collected around the abandoned mine located in southwest of Korea. Pb concentrations and isotope ratios of sediment samples were analyzed through ICP-OES (Optima 5300 DV, Perkin Elmer) and MC-ICP-MS (Plasma II, Nu), respectively. The sediment samples collected in the main stream from the mine entrance showed high Pb concentrations of 139 - 1079 mg/kg, while Pb concentrations of the other sites were 19 - 29 mg/kg. Pb isotope ratios of the main stream sediments were 2.4854 - 2.4883 for 208Pb/207Pb and 1.1693 - 1.1740 for 206Pb/207Pb. On the other hand, the Pb isotopic compositions of sediments collected from the other sites were clearly different from those of ore deposits. The Pb isotope ratios versus inverse concentrations plot showed high linear correlation between the main stream, the tributary stream and one of the downstream sites representing the two end member mixing system between these sites. According to the binary mixing equation, the relative contribution of Pb pollutants from the abandoned mine to the downstream area were approximately 33% - 36%.

关键词： Pb Isotope Ratios MC-ICP-MS Abandoned Mine Stream Sediment

Milan criteria are useful predictors for favorable outcomes in hepatocellular carcinoma patients undergoing liver transplantation after transarterial chemoembolization

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World Journal of Gastroenterology 2006年第43期12卷 6992-6997页

作者： Do Young kim Moon Seok Choi Joon Hyoek Lee Kwang Cheol Koh seung Woon Paik Byung Chul Yoo Sung Wook Shin Sung Wook Choo Young Soo Do Jong Chul Rhee Department of Medicine Samsung Medical Center Sungkyunkwan University School of Medicine Seoul South Korea Depart- ment of Radiology Samsung Medical Center Sungkyunkwan University School of Medicine Seoul South Korea

AIM: To evaluate whether the Milan criteria are useful in patients with hepatocellular carcinoma (HCC) who received transarterial chemoembolization (TACE) before liver transplantation (LT). METHODS: Thirty-six HCC patients who fulfilled the Milan criteria after having received TACE and subsequently underwent LT were included (TACE + LT group) in the study. As controls, 21 patients who also met the Milan criteria and underwent LT without prior treatment were selected (LT group). Post-LT clinical outcomes, such as HCC recurrence, survival rate, and histologic features of explanted livers, were compared between the two groups. RESULTS: Baseline characteristics were not different between the two groups. Pre-LT maximal tumor diameter in TACE + LT group was similar to that of LT group (2.0 ± 0.6 cm vs 2.3 ± 0.9 cm; P = 0.10). Post-LT histologic findings also revealed similar maximal tumor diameter in the two groups (2.4 ± 1.4 cm vs 2.3 ± 0.9 cm; P = 0.70). Explanted livers showed similar incidence of unfavorable pathologic features. The morality within 60 d after transplantation was not different between the two groups (8.3% vs 9.5%; P = 0.99). Post-LT 5-year survival rate (57% vs 74%; P = 0.70) and cumulative recurrence rate (8.3% vs 4.8%; P = 0.90) were not significantly different between the two groups. CONCLUSION: The Milan criteria are still a useful selec- tion criteria showing favorable outcomes in HCC patientsreceiving TACE before LT.

关键词： Milan criteria Hepatocellular carcinoma Transarterial chemoembolization Liver transplantation

Treatment preferences in men with erectile dysfunction： an open label study in Korean men switching from sildenafil citrate to tadalafil

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Asian Journal of Andrology 2007年第6期9卷 760-770页

作者： Tai Young Ahn Sung Won Lee Sae-Woong kim Dae Yul Yang Nam Cheol Park Kweon-Sik Min Kwangsung Park Jae-seung Paick Yulia Dyachkova Trisha Dwight Myung-Sea Luke Lee Asan Medical Centre Seoul 138-736 Korea Samsung Medical Centre Seoul 135-710 Korea Youido St Marys Hospital Seoul 150-713 Korea Kang Dong Sacred Heart Hospital Seoul 134-701 Korea Pusan National University Hospital Pusan 602-739 Korea Pusan lnje University Paik Hospital Pusan 614-735 Korea Chonnam National University Hospital Gwangju 501-757 Korea Seoul National University Hospital Seoul 110-744 Korea Area Medical Centre Vienna Eli Lilly Austria Sydney A-1030 Australia Intercontinental Information Sciences Eli Lilly Australia Sydney 2113 Australia Eli Lilly Korea Seoul 135-280 Korea

To evaluate patient preferences for sildenafil citrate or tadalafil （PDE-5 inhibitors available for the treatment of erectile dysfunction [ED]） and assess potential reasons for these preferences. Methods： This open-label study was conducted on Korean men taking sildenafil, at least 6 weeks prior to study entry, for ED. Following screening, patients continued sildenafil treatment for 4 weeks, then after a 1-week washout period, switched to tadalafil for 8 weeks. Patients then continued with their treatment of choice during an extension phase. Psychosocial factors （time concern, spontaneity, sexual self-confidence） were evaluated using Psychological and Interpersonal Relation- ship Scales （PAIRS）, while timing of dose to sexual attempt patterns were assessed from patient diaries. Results： The present study enrolled 160 Korean men （mean age 55 years） with prior median sildenafil use of 585 days. During the extension phase, 73.7% of patients elected to take tadalafil, whereas 26.3% chose sildenafil （P 〈 0.001）. After switching from sildenafil to tadalafil, mean PAIRS time concern scores decreased from 2.54 to 2.42 （P = 0.002）, with no statistically significant differences observed between the sildenafil and tadalafil assessment phases in sexual spontaneity and self-confidence scores. Sexual attempts made 〉 4 h to 〈 36 h post-dose occurred in 4.5% of patients during the sildenafil assessment phase compared with 17.5% during the tadalafil assessment phase. Conclusion： After experiencing both sildenafil and tadalafil, the majority of patients exhibited a preference for tadalafil. This preference might be influenced by psychosocial factors, such as decreased time concerns, and a broader window of opportunity available for sexual activity.

关键词： erectile dysfunction tadalafil sildenafil citrate Psychological and Interpersonal Relationship Scales preference

Does the antibody production ability affect the serum anti-Helicobacter pylori Ig G titer?

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World Journal of Gastrointestinal Pathophysiology 2016年第3期7卷 288-295页

作者： Hyun Ah Chung Sun-Young Lee Hee Won Moon Jeong Hwan kim In-Kyung Sung Hyung Seok Park Chan Sup Shim Hye seung Han Department of Internal Medicine Konkuk University School of Medicine Department of Laboratory Medicine Konkuk University School of Medicine Department of Pathology Konkuk University School of Medicine

AIM: To investigate the relationship between serum titers of anti-Helicobacter pylori(***) immunoglobulin G(IgG) and hepatitis B virus surface antibody(HBsA b).METHODS: Korean adults were included whose samples had positive Giemsa staining on endoscopic biopsy and were studied in the hepatitis B virus surface antigen(HBsA g)/HBsA b serologic assay,pepsinogen(PG) assay,and *** serologic test on the same *** were excluded if they were positive for HBs Ag,had a recent history of medication,or had other medical condition(s).We analyzed the effects of the following factors on serum titers of HBsA b and the *** IgG : Age,density of *** infiltration in biopsy samples,serum concentrations of PG Ⅰ and PG Ⅱ,PG Ⅰ/Ⅱ ratio,and white blood cell ***: Of 111 included subjects,74(66.7%) exhibited a positive HBsA b *** serum *** IgG titer did not correlate with the serum HBsA b titer(P = 0.185); however,it correlated with the degree of *** infiltration on gastric biopsy(P < 0.001) and serum PG Ⅱ concentration(P = 0.042).According to the density of *** infiltration on gastric biopsy,subjects could be subdivided into those with a marked(median: 3.95,range 0.82-4.00)(P = 0.458),moderate(median: 3.37,range 1.86-4.00),and mild *** infiltrations(median: 2.39,range 0.36-4.00)(P < 0.001).Subjects with a marked *** infiltration on gastric biopsy had the highest serological titer,whereas in subjects with moderate and mild *** infiltrations titers were correspondingly lower(P < 0.001).After the successful eradication,significant decreases of the degree of *** infiltration(P < 0.001),serum *** IgG titer(P < 0.001),and serum concentrations of PG I(P = 0.028) and PG Ⅱ(P = 0.028) were ***: The *** IgG assay can be used to estimate the burden of bacteria in immunocompetent hosts with *** infection,regardless of the HBsA b titer after HBV vaccination.

关键词： Antibody Helicobacter pylori Hepatitis B Immunoglobulin G Pepsinogen