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Clinical course of subepithelial lesions detected on upper gastrointestinal endoscopy

World Journal of Gastroenterology 2010年第4期16卷 439-444页

作者： Yeun Jung Lim Hee Jung Son Jong-Soo Lee Young Hye Byun hyun joo Suh Pool Lyul Rhee Jae J Kim Jong Chul Rhee Center for Health Promotion Department of MedicineSamsung Medical CenterSungkyunkwan University School of Medicine50Irwon-dongGangnam-guSeoul 135-710South Korea Division of Gastroenterology Department of MedicineSamsung Medical CenterSungkyunkwan University School of Medicine50Irwon-dongGangnam-guSeoul 135-710South Korea

AIM:To evaluate the natural history of subepithelial ***:We reviewed the medical records of 104 159 patients who underwent upper gastrointestinal endoscopy at the Center for Health Promotion of Samsung Medical Center between 1996 and *** lesions were detected in 795 patients(0.76%);252 patients were followed using upper gastrointestinal endoscopy for 82.5 ± 29.2 mo(range,12-160 mo;median,84 mo;1st quartile,60 mo;3rd quartile,105 mo).The median interval of follow-up endoscopy was 12 mo(range,6-105 mo;1st quartile,12 mo;3rd quartile,24 mo).RESULTS:The mean patient age was 53 years(range,22-80 years),and the male-to-female ratio was 2.36:1(177/75).The lesion size at initial measurement averaged 8.9 mm(range,2-25 mm;median,8 mm;1st quartile,5 mm;3rd quartile,10 mm).Of the 252 lesions,244(96.8%) were unchanged and 8(3.2%) were significantly increased in size(from 12.9 ± 6.0 to 21.2 ± 12.2 mm) after a mean interval of 59.1 ± 27.5 mo(range,12-86 mo).Surgical resection of lesions was performed when the lesions were ≥ 3 cm in *** lesions were diagnosed as gastrointestinal stromal tumors with an intermediate or high risk of malignancy and one lesion was classified as a ***:Most small subepithelial lesions do not change as shown by endoscopic examination,and regular follow-up with endoscopy may be considered in small,subepithelial lesions,especially lesions < 1 cm in size.

关键词： Subepithelial tumor Ultrasonography Gastrointestinal diseases Gastrointestinal endoscopy Time factors

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Changes in Small Intestinal Motility and Related Hormones by Acupuncture Stimulation at Zusanli(ST 36) in Mice

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Chinese Journal of Integrative Medicine 2017年第3期23卷 215-220页

作者： Jung-Hee Jang Deuk-joo Lee Chang-Hwan Bae Ki-Tae Ha Sunoh Kwon Hi-joon Park Dae-hyun Hahm Hyejung Lee Seungtae Kim School of Korean Medicine Pusan National University Acupuncture and Meridian Science Research Center Kyung Hee University Department of Psychiatry and Behavioral Sciences Northwestern University Feinberg School of Medicine

Objective： To clarify the effects of acupuncture stimulation at Zusanli（ST 36） on the hormonal changes. Methods： Eight-week-old male C57BL/6 mice received acupuncture stimulation at acupoint ST 36 or Quchi（LI 11） once a day for 3 or 5 days in the acupuncture-stimulated groups, but not received in the normal group（n=6 in each group）. On day 3 or 5, animals were given 0.1 m L of charcoal orally with a bulbed steel needle, 30 min after the last acupuncture stimulation. Ten minutes later, mice were anesthetized, and the intestinal transit and the concentrations of vasoactive intestinal peptide（VIP）, motilin, ghrelin and gastrin in the serum were measured. Results： Compared to no acupuncture stimulation, acupuncture stimulation at ST 36 for 5 days increased the intestinal transit and down-regulated the concentration of VIP and up-regulated the concentrations of motilin, ghrelin and gastrin（P〈0.05 or 0.01）, whereas acupuncture stimulation at LI 11 did not change them significantly（P〉0.05）. Conclusion： Acupuncture stimulation at ST 36 for 5 days enhances the small intestinal motility and regulates the secretion of hormones related to small intestinal motility.

关键词： acupuncture gastrointestinal motility vasoactive intestinal peptide motilin ghrelin gastrin

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Prevalence of premature ejaculation in young and middle-aged men in Korea： a multicenter intemet-based survey from the Korean Andrological Society

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Asian Journal of Andrology 2010年第6期12卷 880-889页

作者： hyun Jun Park Jong Kwan Park Kwangsung Park Sung Won Lee Sae-Woong Kim Dae Yul Yang DU Geon Moon Kweon-Sik Min Ki-Hak Moon Sang-Kuk Yang Jae Seog hyun nam Cheol Park Deparment of Urology Pusan National University School of medicine Busan 602739 Korea Deparment of Urology Chonbuk National University Medical School Jeonju 561712 Korea Deparment of Urology Chonnam National University Medical School Gwangju 501746 Korea Deparment of Urology Sungkyunkwan Univer＆ty School of Medicine Seou1135 710 Korea Deparment of Urology Catholic University College of Medicine Seoul 137701 Korea Deparment of Urology Hallym University College of Medicine Seoul 13 7701 Korea Deparment of Urology Korea University College of Medicine Seoul 152703 Korea Deparment of Urology lnje University College of Medicine Busan 614735 Korea Deparment of Urology Yeungnam University College of Medicine Daegu 705717 Korea Deparment of Urology Konkuk University School of Medicine Chungju 380704 Korea Deparment of Urology Gyeongsang National University School of Medicine Jinju 660702 Korea

In this study, we aimed to investigate the prevalence and perception of premature ejaculation （PE） in young and middle-aged Korean men. The study was conducted using an Internet-assisted questionnaire. A total of 2 037 Korean male adults, aged 20 years or older, were randomly sampled based on age and residency. The questionnaire developed by the PE Study Group of the Korean Andrological Society includes four categories （overall sexual function, symptoms, distress and treatment） with a total of 16 questions. For each question, symptoms were evaluated by a scale ranging from 0 to 10. Intravaginal ejaculation latency time was ‘5-10 min＇ in 38.6%, followed by ‘longer than 10 min＇ in 2919%, ‘2-5 min＇ in 23.6%, ‘1-2 min＇ in 5.4% and ‘shorter than 1 min＇ in 2.5%. In our series, 27.5% of respondents reported having PE. Control over ejaculation within a recent 3-month period was 6.2 points on average. Respondent complaints of PE-related stress averaged 7.1 points and stress-related complaints from sexual partners averaged 7.1 points. The effect of PE on sexual life was 6.8 points. Of the respondents determined as having PE, 42.6% responded that they were inclined to receive treatment. Results from this study suggest that the prevalence of PE diagnosed by the respondent on his own was approximately 27.5% in young and middle-aged men in Korea. PE-related stress had a significant effect on the stress, sexual activity and quality of life of the respondent and his sexual partner.

关键词： epidemiology premature ejaculation questionnaire sexual dysfunction

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Expression of protein S100A4 is a predictor of recurrence in colorectal cancer

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World Journal of Gastroenterology 2010年第31期16卷 3897-3904页

作者： Jung Myun Kwak hyun joo Lee Seon Hahn Kim Han Kyeom Kim Young Jae Mok Young Tae Park Jong Sang Choi Hong Young Moon Department of Surgery Korea University Anam Hospital Department of Pathology Korea University Guro Hospital Department of Surgery Korea University Guro Hospital Department of Gastroenterology Korea Uni-versity Guro Hospital

AIM: To investigate the prognostic significance of S100A4 expression in colorectal cancer and its correlation with expression of E-cadherin and p53. METHODS: A cohort of archival formalin-fixed paraff inembedded specimens was selected from 127 patients with colorectal cancer who underwent surgical resection between April 2000 and March 2004 at the Department of Surgery, Korea University Guro Hospital. The expression of protein S100A4 was evaluated according to the proportion of positively stained cancer cells. In each case, three core biopsies with a diameter of 2 mm were punched out and positioned in a recipient paraff in array block. Four-μm sections of these tissue array blocks were used for immunohistochemical analysis of protein S100A4, E-cadherin, and p53. Clinicopathological data were based on the original histopathologic reports and clinical records of patients. RESULTS: In normal colorectal mucosa, protein S100A4 immunoreactivity was clearly absent in both cytoplasm and nucleus. However, positive immunoreactivity of protein S100A4 was detected in 45 (35.4%) of the tumor cases. There was no significant association between positive immunoreactivity of protein S100A4 and clinicopathological parameters such as tumor differentiation or TNM stage, and also no correlation between the reactivity and E-cadherin or p53 expression. However, positive immunoreactivity of protein S100A4 was found to be associated with tumor recurrence (P = 0.004), and was also associated with significantly worse overall survival in the Kaplan-Meyer survival analysis (P = 0.044). After adjustment for tumor differentiation, tumor depth and nodal status, however, it failed to achieve statistical significance (P = 0.067). CONCLUSION: The expression of protein S100A4 is associated with tumor recurrence and poor overall survival in patients with colorectal cancer.

关键词： S100A4 E-cadherin p53 Prognostic factor Colorectal cancer

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Dendritic cell-based immunotherapy for colon cancer using an HLA-A＊0201-restricted cytotoxic T-lymphocyte epitope from tumor-associated antigen 90K

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Cellular & Molecular Immunology 2013年第3期10卷 275-282页

作者： Ji Hee Lee Myong-Suk Park Jun-Eul Hwang Sang-Hee Cho Woo-Kyun Bae hyun-Jeong Shim Dae-Eun Kim Ik-joo Chung Department of Hematology-Oncology Chonnam National University Medical School Gwangju Korea The Brain Korea 21 Project Center for Biomedical Human Resources at Chonnam National University Gwangiu Korea

Tumor-associated antigen 90K is implicated in cell-cell and cell-extracellular matrix adhesion through its interaction with galectin-3 and integrin-β 1 and is highly expressed in malignant tissues, making it a novel target for the development of new immunotherapies. We investigated a potential immunotherapy treatment for colon cancer using 90K-specific cytotoxic T lymphocytes induced by autologous dendritic cells and pulsed with 90K peptides. We selected three peptides （90K3s1, 90K5 and 90K523） that bind to HLA-A＊0201 molecules on the basis of their binding affinity, as determined by a peptide-T2 binding assay. Dendritic cells pulsed with 90K peptides resulted in the efficient generation of mature dendritic cells and exhibited enhanced T-cell stimulation and polarization of naive T cells toward Thl. Dendritic cells pulsed with 90K peptides generated potent cytotoxic T-lymphocytes that lysed T2 cells loaded with each 90K peptide, and 90K＋/HLA-A2＋ colon cancer cell lines, including HCT116 and SW480, in a dose-dependent and HLA-A＊O2Ol-restricted manner. No killing was observed in 90K＋/HLA-A2- DLD1 or 90K-/HLA-A2- K562 cells. Therefore, we believe that cytotoxic T-lymphocytes stimulated by 90K peptide-pulsed dendritic cells naturally recognize the 90K peptide presented by colon cancer cells in the context of HLA-A2, and kill 90K-positive tumor cells. Dendritic cells pulsed with 90K peptides led to the induction of granzyme B and perforin positive CD8＋ T cells against HCT116 and SW480 cells, but not DLD1 cells. In conclusion, 90K-specific cytotoxic T lymphocytes, generated by stimulating T cells with 90K peptide-pulsed dendritic cells, could be useful effector cells for the immunotherapv treatment of colon cancer.

关键词： 9OK colon cancer dendritic cells immunotherapy peptide

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Magnetic resonance imaging biomarkers for pulsed focused ultrasound treatment of pancreatic ductal adenocarcinoma

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World Journal of Gastroenterology 2020年第9期26卷 904-917页

作者： Ezekiel Maloney Yak-nam Wang Ravneet Vohra Helena Son Stella Whang Tatiana Khokhlova Joshua Park Kayla Gravelle Stephanie Totten joo Ha Hwang Donghoon Lee Department of Radiology University of WashingtonSeattleWA 98195United States Applied Physics Laboratory University of WashingtonSeattleWA 98195United States Division of Gastroenterology University of WashingtonSeattle 98195WAUnited States Division of Gastroenterology&Hepatology Stanford University School of MedicineRedwood CityCA 94063United States

BACKGROUND The robust fibroinflammatory stroma characteristic of pancreatic ductal adenocarcinoma(PDA)impedes effective drug *** focused ultrasound(pFUS)can disrupt this stroma and has improved survival in an early clinical ***-invasive methods to characterize pFUS treatment effects are desirable for advancement of this promising treatment modality in larger clinical *** To identify promising,non-invasive pre-clinical imaging methods to characterize acute pFUS treatment effects for in vivo models of *** We utilized quantitative magnetic resonance imaging methods at 14 tesla in three mouse models of PDA(subcutaneous,orthotopic and transgenic-KrasLSLG12D/+,Trp53LSL-R172H/+,Cre or“KPC”)to assess immediate tumor response to pFUS treatment(VIFU 2000 Alpinion Medical Systems;475 W peak electric power,1 ms pulse duration,1 Hz,duty cycle 0.1%)vs sham therapy,and correlated our results with histochemical *** pFUS treatment parameters were previously shown to enhance tumor permeability to chemotherapeutics.T1 and T2 relaxation maps,high(126,180,234,340,549)vs low(7,47,81)b-value apparent diffusion coefficient(ADC)maps,magnetization transfer ratio(MTR)maps,and chemical exchange saturation transfer(CEST)maps for the amide proton spectrum(3.5 parts per million or“ppm”)and the glycosaminoglycan spectrum(0.5-1.5 ppm)were generated and analyzed pre-treatment,and immediately post-treatment,using *** were sacrificed immediately following post-treatment *** whole-tumor was selected as the region of interest for data analysis and subsequent statistical analysis.T-tests and Pearson correlation were used for statistical *** Mean high-b value ADC measurements increased significantly with pFUS treatment for all *** glycosaminoglycan CEST and T2 measurements decreased significantly post-treatment for the KPC *** MTR and amide CEST values increased significantly for the KPC *** acid focal int

关键词： Pancreatic adenocarcinoma Multiparametric magnetic resonance imaging Focused ultrasound

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Proton pump inhibitor administration delays rebleeding after endoscopic gastric variceal obturation

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World Journal of Gastroenterology 2014年第45期20卷 17127-17131页

作者： Won Seok Jang hyun Phil Shin Joung Ⅱ Lee Kwang Ro joo Jae Myung Cha Jung Won Jeon Jun Uk Lim Department of Internal Medicine College of Medicine Kyung Hee University

AIM: To clarify the efficacy of proton pump inhibitors (PPIs) after endoscopic variceal obturation (EVO) with N-butyl-2-cyanoacrylate.

关键词： Cirrhosis Endoscopic variceal obturation N-butyl-2-cyanoacrylate Proton pump inhibitor Rebleeding interval

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Spontaneous resolution of multiple lymphangiomas of the colon:A case report

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World Journal of Gastroenterology 2011年第11期17卷 1515-1518页

作者： Ji Min Lee Woo Chul Chung Kang-Moon Lee Chang Nyol Paik Yeon-Ji Kim Bo-In Lee Young Seok Cho hyun joo Choi Department of Internal Medicine College of Medicine the Catholic University of KoreaSt.Vincent's Hospital 93-6Ji dongPaldal-guSuwonGyeonggi-do442-723South Korea

Lymphangioma of the colon is a relatively rare nonepithelial tumor and usually presents as a submucosal polypoid *** cases incidentally discovered are usually ***,they may present as abdominal pain or bleeding,and their resection is normally *** itself is generally recognized as a benign tumor and no cases of malignant transformation have yet been reported,although its natural history is currently *** the best of our knowledge,this study is the first to describe a case of spontaneous resolution in multiple colonic lymphangiomas without any specific treatment.

关键词： Lymphangioma Colon Natural history

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Inhibitory effect of Jeju endemic seaweeds on the production of pro-inflammatory mediators in mouse macrophage cell line RAW 264.7

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第5期11卷 315-322页

作者： Eun-Jin YANG Ji-Young MOON Min-Jin KIM Dong Sam KIM Chan-Shick KIM Wook Jae LEE nam Ho LEE Chang-Gu hyun Jeju Biodiversity Research Institute(JBRI) Jeju High-Tech Development Institute(HiDI) Jeju 699-943Korea Jeju Seaweed Industry Development Agency Cheju National UniversityJeju 690-756Korea Faculty of Biotechnology Cheju National UniversityJeju 690-756Korea Department of Chemistry Cheju National UniversityJeju 690-756Korea

Seaweed has been used in traditional cosmetics and as a herbal medicine in treatments for cough,boils,goiters,stomach ailments,and urinary diseases,and for reducing the incidence of tumors,ulcers,and *** the fact that seaweeds are frequently used in the practice of human health,little is known about the role of seaweed in the context of *** study aimed to investigate the influence of Jeju endemic seaweed on a mouse macrophage cell line(RAW 264.7) under the stimulation of lipopolysaccharide(LPS).Ethyl acetate extracts obtained from 14 different kinds of Jeju seaweeds were screened for inhibitory effects on pro-inflammatory *** results revealed that extracts from five seaweeds,Laurencia okamurae,Grateloupia elliptica,Sargassum thun-bergii,Gloiopeltis furcata,and Hizikia fusiformis,were potent inhibitors of the production of pro-inflammatory mediators such as nitric oxide(NO),prostaglandin E2(PGE2),interleukin-6(IL-6),and tumor necrosis factor-α(TNF-α).Based on these results,the anti-inflammatory effects and low cell toxicity of these seaweed extracts suggest potential thera-peutic applications in the regulation of the inflammatory response.

关键词： Nitric oxide Interleukin-(IL-) Prostaglandin E(PGE) Tumor necrosis factor-α(TNF-α) Seaweeds Pro-inflammatory mediators

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Therapeutic efficacy and stent patency of transhepatic portal vein stenting after surgery

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World Journal of Gastroenterology 2016年第44期22卷 9822-9828页

作者： Ung Bae Jeon Chang Won Kim Tae Un Kim Ki Seok Choo joo Yeon Jang Kyung Jin nam Chong Woo Chu Je Ho Ryu Department of Radiology Pusan National University Yangsan Hospital Department of Radiology Medical Research Institute Pusan National University School of Medicine and Research Institute for Convergence of Biomedical Science and Technology Pusan National University Hospital Department of Surgery Pusan National University Yangsan Hospital

AIM To evaluate portal vein(PV) stenosis and stent patency after hepatobiliary and pancreatic surgery, using abdominal computed tomography(CT).METHODS Percutaneous portal venous stenting was attempted in 22 patients with significant PV stenosis(> 50%)-after hepatobiliary or pancreatic surgery- diagnosed by abdominal CT. Stents were placed in various stenotic lesions after percutaneous transhepatic portography. Pressure gradient across the stenotic segment was measured in 14 patients. Stents were placed when the pressure gradient across the stenotic segment was > 5 mm Hg or PV stenosis was > 50%, as observed on transhepatic portography. Patients underwent followup abdominal CT and technical and clinical success, complications, and stent patency were *** Stent placement was successful in 21 patients(technical success rate: 95.5%). Stents were positioned through the main PV and superior mesenteric vein(n = 13), main PV(n = 2), right and main PV(n = 1), left and main PV(n = 4), or main PV and splenic vein(n = 1). Patients showed no complications after stent placement. The time between procedure and final follow-up CT was 41-761 d(mean: 374.5 d). Twenty stents remained patent during the entire follow-up. Stent obstruction-caused by invasion of the PV stent by a recurrent tumor- was observed in 1 patient in a follow-up CT performed after 155 d after the procedure. The cumulative stent patency rate was 95.7%. Small in-stent low-density areas were found in 11(55%) patients; however, during successive follow-up CT, the extent of these areas had *** Percutaneous transhepatic stent placement can be safe and effective in cases of PV stenosis after hepatobiliary and pancreatic surgery. Stents show excellent patency in follow-up abdominal CT, despite development of small in-stent low-density areas.

关键词： Liver Vein Stent Computed tomography Surveillance Efficace

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