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Cardiac mucosa at the gastroesophageal junction:An Eastern perspective

World Journal of Gastroenterology 2015年第30期21卷 9126-9133页

作者： Ahrong Kim Won-Young Park Nari shin Hyun Jung Lee Young Keum Kim So Jeong Lee Cheong-soo Hwang Do Youn Park Gwang Ha Kim Bong Eun Lee Hong-Jae Jo Department of Pathology Bio Medical Research InstitutePusan National University Hospital Pusan National University School of Medicine Department of Internal Medicine Bio Medical Research InstitutePusan National University Hospital Department of Surgery Pusan National University Hospital

AIM:To investigate the nature and origin of cardiac mucosa(CM).METHODS:Biopsy samples from sixty-one individuals were included in this study. The specimens were taken "at","just below",or "just above" the gastroesophageal junction,including the histologic squamocolumnar junction. Clinical data were obtained by reviewing electronic medical records for each patient. Patients with a history of stomach adenoma or carcinoma and esophageal carcinoma were excluded,and cases that were endoscopically suspicious of Barrett's esophagus or a polyp were also ruled out. Histologic and endoscopic reviews were performed blinded to the patient's clinical data. Histologic evaluation wasconducted by two pathologists,and endoscopic review was performed by a endoscopist with wide experience in the field. Histologically,the columnar epithelium of squamocolumnar junction,presence and severity of acute and chronic inflammation,atrophy,intestinal metaplasia,and presence of carditis were evaluated. Endoscopically,reflux esophagitis was evaluated by Los Angeles(LA) classification,hiatal hernias were classified by Hill grade,and gastroesophageal flap valves were assessed. RESULTS:Fifty-nine of the 61(96.7%) patients were Korean; 65.6%(40/61) of the patients underwent endoscopy according to the schedule of the National Health Insurance Program as a screening inspection. Of these,only 20.0%(8/40) of cases had reflux s y m p t o m s. C M w a s p r e s e n t i n 4 1 / 6 1( 6 7. 2 %) individuals,and its presence was associated with older age compared to oxyntocardiac mucosa/oxyntic mucosa(60.59 ± 2.02 years vs 51.55 ± 3.35 years; P = 0.018). The presence of CM was associated with endoscopic diagnosis of esophagitis according to the LA classification(P = 0.022). CM was associated with mononuclear cell infiltration and neutrophilic infiltration,which were statistically significant(P = 0.001,and P = 0.004,respectively). The inflammation of CM,"carditis",showed a statistically significant association w

关键词： Cardiac mucosa Carditis Gastroesophagealjunction Gastroesophageal reflux disease Histopathology

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Clinical and endoscopic characteristics of drug-induced esophagitis

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World Journal of Gastroenterology 2014年第31期20卷 10994-10999页

作者： Su Hwan Kim Ji Bong Jeong Ji Won Kim Seong-Joon Koh Byeong Gwan Kim Kook Lae Lee Mee soo Chang Jong Pil Im Hyoun Woo Kang Cheol Min shin Department of Internal Medicine Seoul National University Boramae Hospital Seoul National University College of Medicine Department of Pathology Seoul National University Boramae Hospital Seoul National University College of Medicine Department of Internal Medicine and Liver Research Institute Seoul National University College of Medicine Department of Internal Medicine Dongguk University Ilsan Hospital Goyang 410-773 Gyeonggi-do South Korea Department of Internal Medicine Seoul National University Bundang Hospital Seongnam 463-707 Gyeonggido South Korea

AIM: To investigate clinical, endoscopic and pathological characteristics of drug-induced esophagitis.

关键词： Drug Esophagitis Endoscopy Pathology Symptoms Kissing ulcers

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Surface-Enhanced Raman Scattering of 4-Aminobenznethiol on Silver:Confirmation of The Origin of b2-Type Bands

Surface-Enhanced Raman Scattering of 4-Aminobenznethiol on S...

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第三届亚洲光谱会议

作者： Hyang Bong Lee Kuan soo shin Kwan Kim Department of Chemistry Seoul National University Department of Chemistry Soongsil University

Noble metallic nanostructures exhibit a phenomenon known as surface-enhanced Raman scattering(SERS)in which the scattering cross sections are dramatically enhanced for molecules adsorbed *** to theoretical studies,at ...

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COVID-19-activated SREBP2 disturbs cholesterol biosynthesis and leads to cytokine storm

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Signal Transduction and Targeted Therapy 2020年第1期5卷 910-920页

作者： Wonhwa Lee June Hong Ahn Hee Ho Park Hong Nam Kim Hyelim Kim Youngbum Yoo Hyosoo shin Kyung soo Hong Jong Geol Jang Chun Gwon Park Eun Young Choi Jong-Sup Bae Young-Kyo Seo Aging Research Center Korea Research Institute of Bioscience and BiotechnologyDaejeon 34141Republic of Korea Division of Pulmonology and Allergy Department of Internal MedicineCollege of MedicineYeungnam University and Regional Center for Respiratory DiseasesYeungnam University Medical CenterDaegu 42415Republic of Korea Department of Biotechnology and Bioengineering Kangwon National UniversityChuncheonGangwon-do 24341Republic of Korea Center for BioMicrosystems Brain Science InstituteKorea Institute of Science and Technology(KIST)Seoul 02792Republic of Korea Division of Bio-Medical Science and Technology KIST SchoolKorea University of Science and TechnologySeoul 02792Republic of Korea College of Pharmacy Chungnam National UniversityDaejeon 34134Republic of Korea Department of Biomedical Engineering SKKU Institute for ConvergenceSungkyunkwan University(SKKU)SuwonRepublic of Korea Biomedical Institute for Convergence at SKKU(BICS) Sungkyunkwan University2066 Seobu-roJangan-guSuwon 16419Republic of Korea College of Pharmacy CMRIResearch Institute of Pharmaceutical SciencesBK21 Plus KNU Multi-Omics based Creative Drug Research TeamKyungpook National UniversityDaegu 41566Republic of Korea

Sterol regulatory element binding protein-2(SREBP-2)is activated by cytokines or pathogen,such as virus or bacteria,but its association with diminished cholesterol levels in COVID-19 patients is ***,we evaluated SREBP-2 activation in peripheral blood mononuclear cells of COVID-19 patients and verified the function of SREBP-2 in ***,we report the first observation of SREBP-2 C-terminal fragment in COVID-19 patients’blood and propose SREBP-2 C-terminal fragment as an indicator for determining *** confirmed that SREBP-2-induced cholesterol biosynthesis was suppressed by Sestrin-1 and PCSK9 expression,while the SREBP-2-induced inflammatory responses was upregulated in COVID-19 ICU *** an infectious disease mouse model,inhibitors of SREBP-2 and NF-κB suppressed cytokine storms caused by viral infection and prevented pulmonary *** results collectively suggest that SREBP-2 can serve as an indicator for severity diagnosis and therapeutic target for preventing cytokine storm and lung damage in severe COVID-19 patients.

关键词： cytokine diagnosis damage

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Investigation into charge carrier dynamics in organic light-emitting diodes

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Nano Research Energy 2024年第2期3卷 39-46页

作者： Dong-Guang Zheng Hyeon-Dong Lee Gyeong Won Lee Dong-soo shin Jeongwon Kim Jong-In Shim Zhiqun Lin Tae-Woo Lee Dong Ha Kim Information Engineering College Hangzhou Dianzi UniversityHangzhou 311305China Department of Materials Science and Engineering Seoul National University1 Gwanak-roGwanak-guSeoul 08826Republic of Korea Department of Photonics and Nanoelectronics Hanyang University ERICA55 Hanyangdeahak-roSangnok-guAnsanGyeonggi 15588Republic of Korea Department of Chemistry and Nanoscience Ewha Womans University52Ewhayeodae-gilSeodaemun-guSeoul 03760Republic of Korea Department of Chemical and Biomolecular Engineering National University of Singapore4 Engineering Drive 4Singapore 117585Singapore School of Chemical and Biological Engineering Institute of Engineering ResearchResearch Institute of Advanced MaterialsSoft FoundrySeoul National University1 Gwanak-roGwanak-guSeoul 08826Republic of Korea Basic Sciences Research Institute(Priority Research Institute) Ewha Womans UniversitySeoul 03760Republic of Korea Nanobio∙Energy Materials Center(National Research Facilities and Equipment Center) Ewha Womans UniversitySeoul 03760Republic of Korea

Organic light-emitting diodes(OLEDs)have demonstrated remarkable advancements in both device lifetime and luminous ***,insufficient operation lifetime due to device degradation remains a major hurdle,especially for brighter *** the degradation mechanisms of OLEDs due to the degradation of functional materials and the formation of defects in device architectures continues to be a significant ***,we evaluate the degradation characteristics by scrutinizing the electrical and optical properties,as well as analyzing the charge carrier dynamics in pristine and aged states of phosphorescent OLEDs(PhOLEDs).We show that degradation mechanisms in PhOLEDs can be elucidated in terms of the ideality factors of current and luminance in pristine and aged device *** consistent shifts in distinct ideality factors across various states points out that the device degradation is attributed to the deterioration of the guest material,***-light-emitting phosphorescent ***,the incongruity in ideality factor changes between the two states indicates that the degradation results from the deterioration of non-light-emitting *** characterization experiments provide further evidence that this degradation is primarily attributed to the deterioration of CBP-host *** thorough understanding of degradation mechanisms established in this study can contribute to realizing the highly reliable PhOLEDs with a long lifetime.

关键词： organic light-emitting diodes ideality factor carrier transport processes degradation mechanism

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4-1BB-4-1BBL cis-interaction contributes to the survival of selfreactive CD8^(+)T cell

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Cellular & Molecular Immunology 2023年第9期20卷 1077-1080页

作者： Eunjung Cho Rohit Singh Chungyong Han Seon-Hee Kim Kwang H.Kim Bo-Mi Park Dong Hoon shin Seongeun Han Young H.Kim Byoung S.Kwon Ki Taek Nam beom K.Choi Immuno-oncology Branch Division of Rare and Refractory CancerNational Cancer CenterGoyang 10408Republic of Korea Severance Biomedical Science Institute Brain Korea 21 Project for Medical ScienceYonsei University College of MedicineSeoulRepublic of Korea Department of Cancer Biomedical Science Graduate School of Cancer Science and PolicyNational Cancer CenterGoyang 10408Republic of Korea Department of Biomedical Laboratory Science Catholic Kwandong UniversityGangneung 25601Republic of Korea Biomedicine Production Branch Research InstituteNational Cancer CenterGoyang 10408Republic of Korea Anticancer Resistance Branch Division of Rare and Refractory CancerResearch InstituteNational Cancer CenterGoyang 10408Republic of Korea Eutilex Co. Ltd.Geumcheon-guSeoul 08594Republic of Korea Department of Medicine Tulane University Health Sciences CenterNew OrleansLA 70112USA Innobationbio Co. Ltd.Mapo-guSeoul 03929Republic of Korea

4-1BB is an inducible receptor expressed on activated T cells,while its ligand,4-1BBL,is mainly expressed in antigen-presenting cells and macrophages[1,2].To the best of our knowledge,ligandmediated transactivation of... 详细信息

关键词： interaction activation knowledge

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3D-printed versatile biliary stents with nanoengineered surface for anti-hyperplasia and antibiofilm formation

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Bioactive Materials 2024年第7期37卷 172-190页

作者： Hyun Lee Dong-Sung Won Sinwoo Park Yubeen Park Ji Won Kim Ginam Han Yuhyun Na Min-Ho Kang Seok beom Kim Heemin Kang Jun-Kyu Park Tae-Sik Jang Sang Jin Lee Su APark Sang soo Lee Jung-Hoon Park Hyun-Do Jung Department of Biomedical-Chemical Engineering The Catholic University of KoreaBucheon14662Gyeonggi-doRepublic of Korea Department of Biotechnology The Catholic University of KoreaBucheon14662Republic of Korea Biomedical Engineering Research Center Asan Institute for Life SciencesAsan Medical Center88 Olympic-ro 43-gilSongpa-guSeoul05505Republic of Korea Department of Gastroenterology Asan Medical CenterUniversity of Ulsan College of Medicine88 Olympic-ro 43-gilSongpa-guSeoul05505Republic of Korea Research Center Metamorp IncSeoul08584Republic of Korea Department of Materials Science and Engineering Korea UniversitySeoul02841Republic of Korea IMT Inc Gwangju61086Republic of Korea School of Biomedical Convergence Engineering Pusan National UniversityYangsan50612Republic of Korea Biofunctional Materials Division of Applied Oral Sciences and Community Dental CareFaculty of DentistryThe University of Hong Kong34 Hospital RoadSai Ying PunHong Kong SARPR China Nano-Convergence Manufacturing Systems Research Division Korea Institute of Machinery and Materials(KIMM)Daejeon34103Republic of Korea Department of Convergence Medicine Asan Medical CenterUniversity of Ulsan College of Medicine88Olympic-ro 43-GilSongpa-guSeoul05505Republic of Korea Division of Materials Science and Engineering Hanyang UniversitySeoul04763Republic of Korea

Biliary strictures are characterized by the narrowing of the bile duct lumen,usually caused by surgical biliary injury,cancer,inflammation,and scarring from *** stent placement is a well-established method for the management of biliary ***,maintaining optimal mechanical properties of stents and designing surfaces that can prevent stent-induced tissue hyperplasia and biofilm formation are challenges in the fabrication of biodegradable biliary stents(BBSs)for customized *** study proposes a novel approach to fabricating functionalized polymer BBSs with nanoengineered surfaces using 3D *** 3D printed stents,fabricated from bioactive silica poly(ε-carprolactone)(PCL)via a sol-gel method,exhibited tunable mechanical properties suitable for supporting the bile duct while ensuring ***,a nanoengineered surface layer was successfully created on a sirolimus(SRL)-coated functionalized PCL(fPCL)stent using Zn ion sputtering-based plasma immersion ion implantation(S-PIII)treatment to enhance the performance of the *** nanoengineered surface of the SRL-coated fPCL stent effectively reduced bacterial responses and remarkably inhibited fibroblast proliferation and initial burst release of SRL in vitro *** physicochemical properties and biological behaviors,including in vitro biocompatibility and in vivo therapeutic efficacy in the rabbit bile duct,of the Zn-SRL@fPCL stent demonstrated its potential as a versatile platform for clinical applications in bile duct tissue engineering.

关键词： 3D printing Biodegradable biliary stent Functionalized polymer Zinc ion implantation Antibiofilm formation Anti-hyperplasia

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高效液相色谱法—光散射检测器用于人参皂甙的测定

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药物分析杂志 1996年第6期16卷 412-414页

作者： Man Ki Park Jeong Hill Pard Sang beom Han Young Geun shin Li Ho Park 汉城国立大学

高效液相色谱法—光散射检测器用于人参皂甙的测定ＭａｎＫｉＰａｒｋ，ＪｅｏｎｇＨｉｌＰａｒｄＳａｎｇＢｅｏｍＨａｎ，ＹｏｕｎｇＧｅｕｎｓｈｉｎ，ＬｉＨｏＰａｒｋ（汉城国立大学，药学院，１５１—７４２南朝鲜）人参（为五加... 详细信息

高效液相色谱法—光散射检测器用于人参皂甙的测定ＭａｎＫｉＰａｒｋ，ＪｅｏｎｇＨｉｌＰａｒｄＳａｎｇＢｅｏｍＨａｎ，ＹｏｕｎｇＧｅｕｎｓｈｉｎ，ＬｉＨｏＰａｒｋ（汉城国立大学，药学院，１５１—７４２南朝鲜）人参（为五加科植物人参Ｐａｎａｘｇｉｎｓｅｎｇ...

关键词：人参皂甙光散射检测器高效液相色谱法

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Methods to Minimize Optical Noise That Degrade Fluorescence Efficiency of Optical Probe for Near-Infrared Tracking in Surgical Environment

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Journal of Biomedical Science and Engineering 2015年第1期8卷 56-65页

作者： Hyeong Ju Park In Hee shin Jae Seok Park Joo beom Eom Seok-Ki Kim Byeong-Il Lee Medical Photonics Research Center Korea Photonics Technology Institute Gwangju South Korea Interdisciplinary Program of Biomedical Engineering Chonnam National University Gwangju South Korea Department of Nuclear Medicine National Cancer Center Goyang South Korea

In the medical field, there are growing interests in applied research such as in vivo fluorescence monitoring because of excellent body transmission characteristic of the near-infrared light. However, optical noise by excitation light and illumination equipment for medical applications such as interior light, surgical light decrease efficiency of the fluorescent signal when observers such as surgeons confirm fluorescence signals in medical field. To solve these problems in medical field, we have analyzed external noise factors by effect on image realization, quantification of optical noise generation by external factors, and have suggested methods of minimize the optical noise in this paper. In case of fluorescence imaging in the operating room, it has been confirmed that fluorescent excitation light, interior light and surgical light are factors to generate optical noise. To acquire near-infrared fluorescence images and to compare fluorescence contrast under conditions of darkroom, interior light and surgical light, light emitting diodes (LEDs) sources that have peak wavelength at 740, 760 and 780 nm respectively were used as excitation light sources. In addition, short-pass filter which has transmission edge at 775 nm has been applied to minimize the optical noise in each external noise factor. By comparing contrast of each image before and after use of the short-pass filter, we confirmed that optical noise reduced 49%, 56% and 66% in external noise factors respectively.

关键词： Near-Infrared Fluorescence Optical Noise Filtering

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The SARS-CoV-2 spike protein induces lung cancer migration and invasion in a TLR2-dependent manner

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Cancer Communications 2024年第2期44卷 273-277页

作者： Mi-Jeong Kim Ji Young Kim Ji Hye shin Juhee Son Yeeun Kang soo-Kyung Jeong Duk-Hwan Kim Kyun-Hwan Kim Eunyoung Chun Ki-Young Lee Department of Immunology Samsung Biomedical Research InstituteSungkyunkwan University School of MedicineSuwonRepublic of Korea Research and Development Center CHA Vaccine InstituteSeongnam-siRepublic of Korea Department of Molecular Cell Biology Sungkyunkwan University School of MedicineSuwonRepublic of Korea Department of Precision Medicine Sungkyunkwan University School of MedicineSuwonRepublic of Korea Department of Health Sciences and Technology Samsung Advanced Institute for Health Sciences&TechnologySamsung Medical CenterSungkyunkwan UniversitySeoulRepublic of Korea

Dear editor,Severe acute respiratory syndrome coronavirus2(SARS-CoV-2)infection can lead to severe outcomes in patients with cancer[1].It has been reported that patients with lung cancers disproportionately manifest severe COVID-19 with a high rate of hospitalization and death[2].Notably,the SARS-CoV-2 Spike(S)protein can induce hyper-inflammation in both epithelial cells and macrophages through toll-like receptor(TLR)1/TLR2 or TLR2/6-dependent nuclear factor-kappaB(NF-κB)path-way[3].However,molecular and cellular evidence on whether the SARS-CoV-2 virus affects the severity of lung cancer patients through TLR1/2 or TLR2/6 signaling remains unclear.

关键词： lung TLR2 invasion

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