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Efficacy of the revised Vienna Classification for diagnosing colorectal epithelial neoplasias

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World Journal of Gastroenterology 2009年第19期15卷 2351-2356页

作者： Kenji Tominaga Sumio Fujinuma Takuro Endo Yoshihisa Saida Kei takahashi Iruru Maetani Division of Gastroenterology Department of Internal MedicineToho University Ohashi Medical Center2-17-6 OhashiMeguro-kuTokyo 153-8515Japan Third Department of Surgery Toho University Ohashi Medical Center2-17-6 OhashiMeguro-kuTokyo 153-8515Japan Department of Surgical Pathology Toho University Ohashi Medical Center2-17-6 OhashiMeguro-kuTokyo 153-8515Japan

AIM： To prospectively investigate the efficacy of the revised Vienna Classification for diagnosing colorectal epithelial neoplastic lesions in cold biopsy ***： Patients were selected for inclusion if they had colorectal epithelial lesions that were not considered suitable for direct endoscopic resection,These included colorectal polyps ≥ 10 mm and lesions suspected of being carcinomas capable of invading the colorectal submucosa or beyond, including strictures, based on the cold biopsies obtained from each lesion prior to resection. We investigated the relationship between diagnoses based on cold biopsy samples using the revised Vienna Classification and resected specimens of the same lesions, and the therapeutic implications of diagnoses made using the revised Vienna Classification. The same cold biopsy specimens were also examined using the Japanese Group Classification guidelines, and compared with the resected specimens of the same lesions for ***： A total of 179 lesions were identified. The sensitivity, specificity, positive and negativepredictive values of the revised Vienna Classification for distinguishing between intramucosal lesions and submucosal invasive carcinomas in cold biopsy specimens was 22.2%, 100%, 100%, and 71.4%,respectively, and for distinguishing between intramucosal lesions and those invading the submucosa or beyond was 59.7%, 100%, 100%, and 37.6%,respectively. The sensitivity, specificity, positive and negative predictive values of the Japanese Group Classification for distinguishing between intramucosal lesions and submucosal invasive carcinomas in cold biopsy specimens was 83.3%, 91.4%, 83.3%. and 91.4%, respectively, and for distinguishing between intramucosal lesions and those invading the submucosa or beyond was 95.1%, 91.4%, 97.9%, and 82.1%, respectively. A total of 137 of 144 carcinomas that had invaded the submucosa or beyond and three high-grade intraepithelial neoplasias were diagnosed as ＂carcinoma＂

关键词： Biopsy Cancer Colonoscopy Colorectalepithelial neoplasia Revised Vienna Classification

Utilization of deep sea at 4000 and 6000 m depths for long-term storage and quality improvement of greater amberjack(Seriola dumerili)muscle

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Food Bioscience 2023年第3期53卷 3208-3214页

作者： Yusa Nakamura Takanori Sato Kazuhito Oshima Tomoaki Hagiwara Kigen takahashi Department of Food Science and Technology Tokyo University of Marine Science and TechnologyKonan 4-5-7Minato-kuTokyo108-8477Japan Ideal Brain Co. Ltd.Awaji-cho 2-105Chiyoda-kuTokyo101-0063Japan

Long-term storage and quality maintenance of fresh fish are tremendously *** study aimed to develop a novel technology for long-term storage and quality improvement of fresh fish by utilizing deep sea and to clarify its detailed mechanisms focusing on protein ***,deep-sea aging of greater amberjack muscle was performed at depths of 4000 and 6000 m for approximately 4 *** total viable count of bacteria in the deep-sea-aged samples was significantly suppressed,especially at 6000 *** dodecyl sulfate-polyacrylamide gel electrophoresis(SDS-PAGE)analysis showed that the degradation of myosin heavy chain was accelerated in the deep-sea-aged samples.A significant increase in the content of free amino acids such as aspartic acid and serine,which relates to the enhancement of umami and sweet taste,was also observed in the deep-sea-aged *** differential scanning calorimetry(DSC)analysis indicated that protein conformational changes induced by deep-sea high pressure presumably increase the reactivity between protease and substrate in the fish sample,leading to enhanced ***,deep-sea aging contributes to improving the safety and quality of greater amberjack muscle during long-term ***,this novel technology can be used to achieve the sustainable utilization of marine resources.

关键词： Fish aging Fish protein Freshness Proteolysis Sashimi Umami

Complete response to multidisciplinary therapy in a patient with primary gastric choriocarcinoma

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World Journal of Gastroenterology 2013年第31期19卷 5187-5194页

作者： Kazuhiro takahashi Shigeki Tsukamoto Ken Saito Nobuhiro Ohkohchi Katsu Hirayama Division of Gastro-enterological and Hepatobiliary Surgery and Organ Transplantation Department of Surgery University of Tsukuba Tsukuba 3058575 Japan Department of Surgery Hiraka General Hospital Yokote 0138610 Japan

Primary gastric choriocarcinoma is a rapidly growing neoplasm with an average survival of several months in untreated *** with lymph node dissection followed by chemotherapy is the treatment of *** used for gastric adenocarcinoma are usually ***,median survival remains less than six *** this case report,we describe a case of primary gastric choriocarcinoma with a clinical complete response to multidisciplinary treatment including surgery,chemotherapy,and radiofrequency ablation(RFA).The patient was originally referred for general *** demonstrated a large tumor occupying the fornix,and total gastrectomy with lymph node dissection was *** days later,multiple liver metastatic recurrences with high serum levels of beta-human chorionic gonadotropin(β-hCG) were *** with a gonadal choriocarcinoma regimen consisting of etoposide,methotrexate,actinomycin D,cyclophosphamide,and vincristine(EMA/CO),was *** three cycles,serum β-hCG decreased markedly and the tumors *** months later,multiple lung metastatic recurrences were *** one cycle of EMA/CO,only one nodule *** tomography-guided RFA was performed for this oligometastatic *** patient has been alive with no evidence of disease for 10 years after the initial *** the best of our knowledge,this patient with recurrent primary gastric choriocarcinoma has achieved the longest *** present case is the first report of choriocarcinoma metastatic to the lung successfully treated with *** our retrospective analysis of recurrent or unresectable primary gastric choriocarcinoma,we propose that gonadal choriocarcinoma regimens can be considered as first-line for primary gastric choriocarcinoma.

关键词： Primary gastric choriocarcinoma Betahuman chorionic gonadotropin Etoposide,methotrexate,actinomycin D,cyclophosphamide,and vincristine Oligometastatic Radiofrequency ablation

Immunological effect of local ablation combined with immunotherapy on solid malignancies

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Chinese Journal of Cancer 2017年第6期36卷 252-257页

作者： Yusuke takahashi Noriyuki Matsutani Takashi Nakayama Hitoshi Dejima Hirofumi Uehara Masafumi Kawamura Department of General Thoracic Surgery Teikyo University School of Medicine

Recent comprehensive investigations clarified that immune microenvironment surrounding tumor cells are deeply involved in tumor progression,metastasis,and response to ***,several immunotherapeutic trials have achieved successful results,and the immunotherapeutic agents are available in clinical *** enhance their demonstrated efficacy,combination of immunotherapy and ablation has begun to *** ablations have considerable advantages as an alternative therapeutic option,especially its minimal *** addition,local ablations have shown immune-regulatory effect in preclinical and clinical *** the corresponding mechanisms are still unclear,the local ablations combined with immunotherapy have been suggested in the treatment of several solid *** article aims to review the published data on the immune-regulatory effects of local ablations including stereotactic body radiotherapy,cryoablation,radiofrequency ablation,and high-intensityfocused *** also discuss the value of local ablations combined with *** ablations have the potential to improve future patient outcomes;however,the effectiveness and safety of local ablations combined with immunotherapy should be further investigated.

关键词：免疫治疗剂免疫效应实体瘤免疫调节作用高强度聚焦超声肿瘤细胞临床实践综合调查

CAMSAP3-dependent microtubule dynamics regulates Golgi assembly in epithelial cells

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Journal of Genetics and Genomics 2017年第1期44卷 39-49页

作者： Jing Wang Honglin Xu Yuqiang Jiang Mikiko takahashi Masatoshi Takeichi Wenxiang Meng State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences No.19A Yuquan RoadBeijing 100049China Faculty of Pharmaceutical Sciences Teikyo Heisei University4-21-2 NakanoNakano-kuTokyo 164-8530Japan RIKEN Center for Developmental Biology 2-2-3 Chuo-kuKobe 650-0047Japan

The Golgi assembly pattern varies among cell types. In fibroblast cells, the Golgi apparatus concentrates around the centrosome that radiates microtubules; whereas in epithelial cells, whose microtubules are mainly noncentrosomal, the Golgi apparatus accumulates around the nucleus independently of centrosome. Little is known about the mechanisms behind such cell wpe-specific Golgi and microtubule organization. Here, we show that the microtubule minus-end binding protein Nezha/CAMSAP3 （calmodulin-regulated spectrin-associated protein 3） plays a role in translocation of Golgi vesicles in epithelial cells. This function of CAMSAP3 is supported by CG-NAP （centrosome and Golgi localized PKN- associated protein） through their binding. Depletion of either one of these proteins similarly induces fragmentation of Golgi membranes. Furthermore, we find that stathmin-dependent microtubule dynamics is graded along the radial axis of ceils with highest activity at the perinuclear region, and inhibition of this gradient disrupts perinuclear distribution of the Golgi apparatus. We propose that the assembly of the Golgi apparatus in epithelial cells is induced by a multi-step process, which includes CAMSAP3-dependent Golgi vesicle clustering and graded microtubule dynamics.

关键词： CG-NAP Nezha/CAMSAP3 Golgi Noncentrosomal micfotubules Stathmin

Insights into the pathogenesis of multiple system atrophy: focus on glial cytoplasmic inclusions

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Translational Neurodegeneration 2020年第1期9卷 66-80页

作者： Seiji Kaji Takakuni Maki Tomoyuki Ishimoto Hodaka Yamakado Ryosuke takahashi Department of Neurology Graduate School of MedicineKyoto University54 Shogoin-Kawahara-choSakyo-kuKyotoJapan

Multiple system atrophy(MSA)is a debilitating and fatal neurodegenerative *** disease severity warrants urgent development of disease-modifying therapy,but the disease pathogenesis is still *** in MSA brains is preceded by the emergence of glial cytoplasmic inclusions(GCIs),which are insoluble α-synuclein accumulations within oligodendrocytes(OLGs).Thus,preventive strategies against GCI formation may suppress disease ***,although numerous studies have tried to elucidate the molecular pathogenesis of GCI formation,difficulty remains in understanding the pathological interaction between the two pivotal aspects of GCIs;asynuclein and *** difficulty originates from several enigmas:1)what triggers the initial generation and possible propagation of pathogenic α-synuclein species?2)what contributes to OLG-specific accumulation of α-synuclein,which is abundantly expressed in neurons but not in OLGs?and 3)how are OLGs and other glial cells affected and contribute to neurodegeneration?The primary pathogenesis of GCIs may involve myelin dysfunaion and dyshomeostasis of the oligodendroglial cellular environment such as autophagy and iron *** have previously reported that oligodendrocyte precursor cells are more prone to develop intracellular inclusions in the presence of extracellular fibrillary α-*** finding implies a possibility that the propagation of GCI pathology in MSA brains is mediated through the internalization of pathological α-synuclein into oligodendrocyte precursor *** this review,in order to discuss the pathogenesis of GCIs,we will focus on the composition of neuronal and oligodendroglial inclusions in ***,we will introduce some hypotheses on how α-synuclein pathology spreads among OLGs in MSA brains,in the light of our data from the experiments with primary oligodendrocyte lineage cell *** various reports have focused on the mysterious source of α-

关键词： Multiple system atrophy a-synuclein Glial cytoplasmic inclusion Prion Neurodegeneration Oligodendrocyte Microglia Astrocyte Oligodendrocyte precursor cell

Elevated plasma cryofibrinogen in patients with active inflammatory bowel disease is morbigenous

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World Journal of Gastroenterology 2006年第10期12卷 1621-1625页

作者： Koji Sawada Ryouki takahashi Abbi R Saniabadi Maiko Ohdo Takashi Shimoyama Department of Gastroenterology Fujimoto Hospital MedicineOsaka and Department of GastroenterologyHyogo College of MedicineNishinomiyaJapan Wakamoto Pharmaceuticals Sagami Laboratory KanagawaJapan Japan Immunoresearch Laboratories.Takasaki Japan Department of Gastroenterology Hyogo College of Medicine NishinomiyaJapan

AIM： To investigate the role of cryofibrinogen （CF） in active inflammatory bowel disease （IBD）. METHODS： CF was assayed in 284 subjects： 61 with active and 63 with inactive ulcerative colitis （UC）, 45 who had proctocolectomy, 35 with active and 20 with inactive Crohn＇s disease （CD）, 40 with other diseases and 20 healthy controls. Trypsin inhibitor （TI） and TI antibody （TI-Ab） were measured in plasma and CF complex by ELISA. RESULTS： CF in active UC was strikingly high compared with all other groups （x^2〈0.001）. Similarly, CF was significantly higher in active CD than in inactive CD or in controls （x^2〈0.01）. In UC, high CF and TI-Ab were associated with the need for operations. Further, high CF, CF/fibrinogen ratio, low TI and high TI-Ab in plasma were associated with disease activity or refractoriness to medication. Elevated CF was not associated with acute reactants like C-reactive protein and white blood cell counts except for erythrocyte sedimentation rate, suggesting that elevated CF was not a consequence of acute inflammation. CONCLUSION： Elevated CF in active IBD appears to be morbigenous. CF promotes IBD via two main mechanisms, quenching of TI （an anti-inflammatory substance） and impairing microvascular perfusion by forming protein aggregates. CF may also serve as a biomarker of chronic IBD. Additional studies are warranted to fully evaluate the role of CF in IBD and the outcome should contribute to a better understanding of the pathogenesis of IBD.

关键词： Inflammatory bowel disease Cryofibrinogen Trypsin inhibitor Trypsin inhibitor antibody Acute colitis

Performance Evaluation and Social Optimization of an Energy-Saving Virtual Machine Allocation Scheme Within a Cloud Environment

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Journal of the Operations Research Society of China 2020年第4期8卷 561-580页

作者： Xiushuang Wang Jing Zhu Shunfu Jin Wuyi Yue Yutaka takahashi School of Information Science and Engineering Yanshan UniversityQinhuangdao 066004ShandongChina Department of Intelligence and Informatics Konan UniversityKobe 658-8501Japan Graduate School of Informatics Kyoto UniversityKyoto 606-8225Japan

Achieving greener cloud computing is non-negligible for the open-source cloud *** this paper,we propose a novel virtual machine allocation scheme with a sleep-delay and establish a corresponding mathematical *** into account the number of tasks and the state of the physical machine,we construct a two-dimensional Markov chain and derive the average latency of tasks and the energy-saving degree of the system in the steady ***,we provide numerical experiments to show the effectiveness of the proposed ***,we study the Nash equilibrium behavior and the socially optimal behavior of tasks and carry out an improved adaptive genetic algorithm to obtain the socially optimal arrival rate of ***,we present a pricing policy for tasks to maximize the social profit when managing the network resource within the cloud environment.

关键词： Cloud computing Resource allocation scheme Mathematical analysis Markov chain Socially optimization Genetic algorithm

Curvature derived from LiDAR digital elevation models as simple indicators of debris-flow susceptibility

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Journal of Mountain Science 2019年第1期16卷 95-107页

作者： Atsuko NONOMURA Shuichi HASEGAWA Hideo MATSUMOTO Mari takahashi Mina MASUMOTO Kazuhito FUJISAWA Faculty of Engineering and design Kagawa University Institute of Education Research and Regional Cooperation for Crisis Management Shikoku Kagawa University Faculty of Engineering Graduate school of Engineering Kagawa University

To mitigate the damage caused by debris flows resulting from heavy precipitation and to aid in evacuation plan preparation, areas at risk should be mapped on a scale appropriate for affected individuals and communities. We tested the effectiveness of simply identifying debris-flow hazards through automated derivation of surface curvatures using LiDAR digital elevation models. We achieved useful correspondence between plan curvatures and areas of existing debris-flow damage in two localities in Japan using the analysis of digital elevation models(DEMs). We found that plan curvatures derived from 10 m DEMs may be useful to indicate areas that are susceptible to debris flow in mountainous areas. In residential areas located on gentle sloping debris flow fans, the greatest damage to houses was found to be located in the elongated depressions that are connected to mountain stream valleys. Plan curvaturederived from 5 m DEM was the most sensitive indicators for susceptibility to debris flows.

关键词： Digital elevation model LiDAR Gridspacing Debris flow Geological hazard Curvature