检索结果-南通市图书馆

Cardiac metastasis from colorectal cancer:A case report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2009年第21期15卷 2675-2678页

作者： Pyong Wha Choi Chul Nam Kim Sun Hee Chang woo Ik Chang Chang Young Kim Hyun min Choi Department of Surgery Ilsan Paik HospitalInje University College of Medicine Department of Diagnostic Pathology Ilsan Paik HospitalInje University College of Medicine Department of Chest Surgery Ilsan Paik HospitalInje University College of Medicine Department of Internal Medicine Ilsan Paik HospitalInje University College of Medicine

The heart is an unusual site of metastasis from any malignancy. We report a case of cardiac metastasis from colorectal cancer. A 70-year-old woman was referred with a presumptive diagnosis of sigmoid colon cancer with cardiac myxoma. Two-dimensional echocardiography showed a 4 cm x 4.5 cm mobile mass on the lateral right atrial wall, and computed tomography revealed a low attenuated Iobulating mass in the right atrium. The patient underwent anterior resection for sigmoid colon cancer （T4N2）. Thereafter, she experienced progressive shortness of breath. Therefore, a cardiac operation was performed 2 wk after the colorectal operation. Histological examination revealed adenocarcinoma, which was identical to the primary lesion. Although two- dimensional echocardiography has become the diagnostic test of choice for detecting cardiac tumors, in patients with colorectal cancer showing a cardiac mass, further diagnostic evaluation such as a magnetic resonance imaging might be necessary.

关键词： Heart Cardiac metastasis Colorectalcancer Atrial myxoma Magnetic resonance imaging

Immune enhancement effect of an herb complex extract through the activation of natural killer cells and the regulation of cytokine levels in a cyclophosphamide-induced immunosuppression rat model

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2018年第12期11卷 653-658页

作者： Sung min woo woo Rin Choi Dooly Jang Chun Sik Yi Hae Lim Kim Kyung Hyeon Kim Jong Tae Kim Won Hee Choi Seung Hee Jang min jeung Kim Ji Hyang Wee Yeon Ki Kim Bao Le Interdisciplinary Program of Biomodulation Myongji UniversityYonginGyeonggi 17058Republic of Korea Center for Nutraceutical and Pharmaceutical Materials Myongji UniversityYonginGyeonggi 17058Republic of Korea Teazen Co. B-606 Acrotower230 Sinim-daeroDongan-guAnyang-siGyeonggi-do 14067Republic of Korea Department of Food Science&Biotechnology Shin Ansan UniversityAnsanGyeonggi 15435Republic of Korea' Division of Bioscience and Bioinformatics Myongji UniversityYonginGyeonggi 17058Republic of Korea Department of Biotechnology Chonnam National UniversityYeosuChonnam 59626Republic of Korea

Objective: To investigate the effects of a herb complex extract(HCE) prepared from Cornus officinalis Sieb. Et Zucc., Eriobotrya japonica Lindley, and olive leaves on immune response of mouse spleen NK cells in vitro and in vivo analysis. Methods: The activity of natural killer(NK) cells was measured in splenocytes and YAC-1 cells. Mice were immunosuppressed using cyclophosphamide(5 mg/kg body weight). Three different doses of HCE(200, 400, and 800 mg/kg body weight) and red ginseng extract(800 mg/kg body weight) which was used as standard immunomodulatory herb were administered orally for 4 weeks. The body weight, dietary, water intake, organs(liver, thymus, and spleen) weight, completed blood count, and cytokines(tumor necrosis factor alpha, interferon gamma, and interleukin-2) production was measured. Results: At the maximum concentration of HCE, the activity of NK cells was increased by 48.5%. HCE increased liver, spleen, and thymus weights without altering numbers of white blood cells, lymphocytes, and neutrophils in a cyclophosphamide-induced immunosuppression rat model. However, HCE recovered the inhibited cytokine expression; HCE(800 mg/kg) increased cytokines levels. The results indicate the immune enhancement potential of this HCE. Conclusion: The HCE enhances immunity by increasing NK cell activity, regulating cytokine levels, and maintaining spleen weight. Therefore, it may be used as a potential immunity enhancer.

关键词： Immune system enhancement Cyclophosphamide Cornus officinalis Sieb Et Zucc Eriobotrya japonica Lindley Olive leaves

MEMS inductor fabrication and emerging applications in power electronics and neurotechnologies

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Microsystems & Nanoengineering 2021年第4期7卷 1-22页

作者： Hoa Thanh Le Rubaiyet I.Haque Ziwei Ouyang Seung woo Lee Shelley I.Fried Ding Zhao min Qiu Anpan Han The Rowland Institute at Harvard Harvard UniversityCambridgeMAUSA Department of Mechanical Engineering Technical University of DenmarkLyngbyDenmark Department of Electrical Engineering Technical University of DenmarkLyngbyDenmark Department of Neurosurgery Massachusetts General HospitalHarvard Medical SchoolBostonMAUSA Boston VA Healthcare System BostonMAUSA Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province School of EngineeringWestlake UniversityHangzhouChina Institute of Advanced Technology Westlake Institute for Advanced StudyHangzhouChina

MEMS inductors are used in a wide range of applications in micro-and nanotechnology,including RF MEMS,sensors,power electronics,and *** technologies set the boundary conditions for inductor design and their electrical and mechanical *** review provides a comprehensive overview of state-of-the-art MEMS technologies for inductor fabrication,presents recent advances in 3D additive fabrication technologies,and discusses the challenges and opportunities of MEMS inductors for two emerging applications,namely,integrated power electronics and *** the four top-down MEMS fabrication approaches,3D surface micromachining and through-substrate-via(TSV)fabrication technology have been intensively studied to fabricate 3D inductors such as solenoid and toroid in-substrate TSV *** 3D inductors are preferred for their high-quality factor,high power density,and low parasitic capacitance,in-substrate TSV inductors offer an additional unique advantage for 3D system integration and efficient thermal *** features make in-substrate TSV inductors promising to achieve the ultimate goal of monolithically integrated power *** another perspective,3D bottom-up additive techniques such as ice lithography have great potential for fabricating inductors with geometries and specifications that are very challenging to achieve with established MEMS ***,we discuss inspiring and emerging research opportunities for MEMS inductors.

关键词： inductor power lithography

Gastric dysplasia may be an independent risk factor of an advanced colorectal neoplasm

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2009年第45期15卷 5722-5726页

作者： Rack Cheon Bae Seong woo jeon Han Jin Cho min Kyu Jung Young Oh Kweon Sung Kook Kim Department of Internal Medicine Kyungpook National University Hospital

AIM: To evaluate the relationship between gastric dysplasia and Helicobacter pylori (H pylori) and the occurrence of colorectal adenoma, and to defi ne the necessity for colonoscopy in patients with gastric dysplasia or H pylori ***: From May 2005 to February 2008, 133 patients with established gastric dysplasia by gastroduo-denoscopy (EGD) were additionally investigated by colonoscopy. The authors compared results with those of 213 subjects who underwent both EGD and colonoscopy during the same period at the author’s Health Promotion Center as a control group. H pylori infection was evaluated in both the gastric dysplasia and control ***: The mean age of all 346 study subjects was 54.1 ± 10.5 years, and there were 258 (73%) men and 87 (27%) women. No signif icant difference was found between the H pylori positive and negative subjects in terms of the prevalence of colorectal adenoma and advanced colorectal adenoma (P = 0.261). Patients with gastric dysplasia showed no elevated risk of colorectal adenoma (OR = 0.910, 95% CI: 0.587-1.411, P = 0.738), but had a signif icantly higher risk of having advanced colorectal adenoma (OR = 3.382, 95% CI: 1.700-6.342, P = 0.000).CONCLUSION: The study emphasizes the need for colon surveillance in patients with gastric dysplasia, regardless of H pylori infection.

关键词： Gastric adenoma or dysplasia Helicobacter pylori Colorectal neoplasm

Insect community structures along elevation gradients on ***-san, South Korea

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Forestry Research 2015年第4期26卷 1013-1018页

作者： Young-min Shin Il-Kwon Kim Jong-woo Nam Da-Som Kim Seung Jin Roh Jun Hyoung jeon Jong Kyun Park Dong-Pyeo Lyu Bong-woo Lee Bong-Kyu Byun Division of Forest Biodiversity Korea National Arboretum Department of Biological Science and Biotechnology Hannam University Department of Applied Biology Kyungpook National University Department of Forest Sciences Sangji University

Insect communities along three elevation gra- dients on Mt. Seongak-san, South Korea, were investigated from May to September 2013 using traps in order to collect basic data for distributional monitoring of species in a forest ecosystem. A total of 2698 individuals of 309 moth species of 18 families were collected in bucket-light traps, along with 196 individuals of 26 ground-beetle species and 11,276 individuals of 14 ant species in pit-fall traps. The insect community at each site was analyzed using analysisof variance and non-metric multidimensional scaling （NMS）. The ground-beetle and ant abundances varied with elevation. The NMS showed distinct clusters of moths between the ground-beetle and ant distributions with ele- vation and month. The community-level responses of these insect groups to those gradients were analyzed.

关键词： Insect community Elevation ANOVA Bucket-light trap Pit-fall trap South Korea

Bacterial entombment by intratubular mineralization following orthograde mineral trioxide aggregate obturation: a scanning electron microscopy study

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

International Journal of Oral Science 2014年第4期6卷 227-232页

作者： Jun Sang Yoo Seok-woo Chang So Ram Oh Hiran Perinpanayagam Sang-min Lim Yeon-jee Yoo Yeo-Rok Oh Sang-Bin woo Seung-Hyun Han Qiang Zhu Kee-Yeon Kum Department of Dentistry U Dental Hospital Department of Conservative Dentistry School of Dentistry Kyung Hee University Department of Conservative Dentistry Dental Research Institute Seoul National University Dental Hospital Seoul National University School of Dentistry Division of Restorative Dentistry Schulich School of Medicine & Dentistry University of Western Ontario Department of Conservative Dentistry Jukjeon Dental Hospital College of Dentistry Dankook University Department of Oral Microbiology & Immunology Dental Research Institute and BK21 Program Seoul National University School of Dentistry Division of Endodontology Department of Oral Health and Diagnostic Sciences School of Dental Medicine University of Connecticut Health Center

The time domain entombment of bacteria by intratubular mineralization following orthograde canal obturation with mineral trioxide aggregate（MTA） was studied by scanning electron microscopy（SEM）. Single-rooted human premolars（n560） were instrumented to an apical size #50/0.06 using ProF ile and treated as follows： Group 1（n510） was filled with phosphate buffered saline（PBS）; Group 2（n510） was incubated with Enterococcus faecalis for 3 weeks, and then filled with PBS; Group 3（n520） was obturated orthograde with a paste of OrthoM TA（BioM TA, Seoul, Korea） and PBS; and Group 4（n520） was incubated with E. faecalis for 3 weeks and then obturated with OrthoM TA–PBS paste. Following their treatments, the coronal openings were sealed with PBS-soaked cotton and intermediate restorative material（IRM）, and the roots were then stored in PBS for 1, 2, 4, 8 or 16 weeks. After each incubation period, the roots were split and their dentin/MTA interfaces examined in both longitudinal and horizontal directions by SEM. There appeared to be an increase in intratubular mineralization over time in the OrthoM TA-filled roots（Groups 3 and 4）. Furthermore, there was a gradual entombment of bacteria within the dentinal tubules in the E. faecalis inoculated MTA-filled roots（Group 4）. Therefore, the orthograde obturation of root canals with OrthoM TA mixed with PBS may create a favorable environment for bacterial entombment by intratubular mineralization.

关键词： bacterial entombment intratubular mineralization orthograde canal obturation scanning electron microscopy tag-like structure

Heterostructures in two-dimensional colloidal metal chalcogenides:Synthetic fundamentals and applications

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Nano Research 2019年第8期12卷 1750-1769页

作者： Yuho min Eunmi Im Geon-Tae Hwang Jong-woo Kim Cheol-woo Ahn Jong-Jin Choi Byung-Dong Hahn Joon-Hwan Choi woon-Ha Yoon Dong-Soo Park Dong Choon Hyun Geon Dae Moon Functional Ceramics Department Powder & Ceramics DivisionKorea Institute of Materials Science (KIMS)ChangwonGyeongnam51508Republic of Korea Department of Polymer Science and Engineering Kyungpook National UniversityDaegu41566Republic of Korea Dongrtam Regional Division Korea Institute of Industrial TechnologyBusan46938Republic of Korea

As a new class of two-dimensional materials, two-dimensional (2D) heterostructures constructed from metal chalcogenides (MCs) have been gaining tremendous attention due to their unprecedented physical and chemical phenomena, mainly originated from their distinct structural features such as composition, architecture type, spatial arrangement of each component, crystal structure, exposed facet and interface, dimensionality in their heterostructures. Towards the realization of practical applications, synthetic approaches need a rational design with a variety of architecture types including laterally-combined, vertically-aligned, and conformally-coated 2D MC heterostructures. Among various synthetic routes, solution-based synthesis is thought of as an alternative to fabrication through high-cost setups since it can control those structural features in a cheap fashion. This review presents recent progress on solution-based synthesis to produce various 2D MC heterostructures with a focus on the synthetic fundamentals in terms of thermodynamic and kinetic aspects related to the growth mechanism. Four different synthetic approaches are reviewed: seeded growth, cation exchange reaction, colloidal atomic layer deposition, direct synthesis including one-step process and modified electrochemical method. We also provide some representative applications of 2D MC heterostructures and their hybrid composites in various fields including optoelectronics, thermoelectrics, catalysis, and battery. Finally, we offer an insight into challenges and future directions in a synthetic improvement of 2D MC heterostructures.

关键词： metal chalcogenide heterostructure anisotropic nanomaterials two-dimensional (2D) nanomaterials solution-based synthesis

Non-Invasive Measurements of Thickness of Superconductor Films by Using Two-Resonant-Mode Rutile Resonator

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 2010年第8期27卷 203-206页

作者： JUNG Ho Sang YANG woo Il LEE Jae Hun SOHN Jae min CHOO Kee Nam KIM Bong Goo LEE Sang Young Department of Physics and Center for Wireless Transmission Technology Konkuk University Seoul 143-701 Korea Research Reactor Engineering Division Korea Atomic Energy Research Institute Daejeon 305-600 Korea

The film thickness should be known for extrazting the intrinsic surface resistance from the effective surface resistance as measured by using the dielectric resonator method. Thicknesses of 70 nm to 360 nm are measured for YBa2 Cu3 O7-δ films in a non-invasive way by using the two-resonant-mode dielectric resonator （TDR） method. A futile resonator with the respective resonant frequencies of 15.25-15.61 GHz and 15.10-15.37 GHz for the TE021 and the TE012 modes is used for this purpose. Differences between the values as measured by using the TDR technique and those measured by using a step profilometer appear to be less than 3%, which is smaller than the previous value of 5% as measured by using a 8. 6 GHz single-resonance mode futile resonator [Lee et al. J. Korean Phys. Soc. 54（2009）1619]. Merits of using the TDR method are discussed.

关键词： Thickness Packaging materials Films Methods Uses Measurement Tellurium Reflectometry

Bacterial peptide deformylase inhibitor PMT analogs inhibit cancer cell growth by interacting with human peptide deformylase

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2014年第32期59卷 4274-4282页

作者： Won-je Kim woo Sung Son Kyoung-Seok Ryu Seung-Kyu Lee Kwang-Hyun Choi Jong-Sun Lee Bong-Jin Lee College of Pharmacy Seoul National University Seoul 151-742Korea College of Pharmacy CHA University SeongnamGyeonggi-do 487-010 Korea Division of Magnetic Resonance Korea Basic Science InstituteOchang Campus Seoul Chungcheongbuk-Do 363-883 Korea Promeditech Ltd Seoul National University Seoul 151-742Korea

Potent inhibitors of human peptide deformylase(HsPDF)were screened using known PMT analog inhibitors of bacterial peptide ***-three species of PMT analogs that are non-peptidyl bacterial PDF inhibitors like actinonin were selected using virtual screening *** species out of 43 that could bind to HsPDF were selected and their antitumor activities were *** them,four species(PMT-172,PMT-173,PMT-199,and PMT-201)showed excellent growth inhibition of cancer cell in the MTT ***-PMT binding was confirmed through a1H-CPMG-T2filter NMR experiment leading to a significant change in peak intensity for PMT-172 and *** results suggest that PMT analogs could possibly interact with HsPDF and be a novel anticancer drug candidate.

关键词：相互作用抑制剂类似物 PMT 癌细胞类肽细胞生长细菌