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Ni-Mo基催化剂上卟啉加氢脱氮(英文)

催化学报 2013年第1期34卷 152-158页

作者： Eika W.QIAN satoshi abe Yusaku KAGAWA Hiroyuki IKEDA Department of Chemical Engineering Tokyo University of Agriculture and Technology Nippon Ketjen Co.Ltd

The hydrodenitrogenation(HDN) of porphyrins was carried out over a series of phosphorus containing NiMo/Al 2 O 3 catalysts using a fixed‐bed flow reaction system.A method of quantitative analysis of the porphyrin and its derivatives produced by HDN was *** HDN of porphyrin,four types of hydrocarbons:C8 alkanes,C 8 alkenes,C9 alkanes,and C10 alkanes,and two groups of nitrogen‐containing compounds:alkyl substituted bipyrrolidines(alkylbipyrrolidines) and alkyl substituted tripyrrolidines(alkyltripyrrolidines) were *** hydrogenolysis of porphyrins occurred rapidly at lower temperature but higher temperatures were required for the HDN of *** NiMoP3 catalyst showed the highest catalytic activity for the HDN of *** on the characterization of the supports and catalysts,it is suggested that the dispersion of Mo is improved and the number of weak acidic sites on the NiMoP catalysts increases with the addition of phosphorus.

关键词： Mo基催化剂脱氮性能加氢脱氮卟啉 Ni HDN 反应体系定量分析

Diagnosis and management of fibromuscular dysplasia and segmental arterial mediolysis in gastroenterology field: A mini-review

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World Journal of Gastroenterology 2018年第32期24卷 3637-3649页

作者： Masayoshi Ko Kenya Kamimura Kohei Ogawa Kentaro Tominaga Akira Sakamaki Hiroteru Kamimura satoshi abe Kenichi Mizuno Shuji Terai Division of Gastroenterology and Hepatology Graduate School of Medical and Dental Sciences Niigata University

The vascular diseases including aneurysm, occlusion, and thromboses in the mesenteric lesions could cause severe symptoms and appropriate diagnosis and treatment are essential for managing patients. With the development and improvement of imaging modalities, diagnostic frequency of these vascular diseases in abdominal lesions is increasing even with the small changes in the vasculatures. Among various vascular diseases, fibromuscular dysplasia(FMD) and segmental arterial mediolysis(SAM) are noninflammatory, nonatherosclerotic arterial diseases which need to be diagnosed urgently because these diseases could affect various organs and be lethal if the appropriate management is not provided. However, because FMD and SAM are rare, the cause, prevalence, clinical characteristics including the symptoms, findings in the imaging studies, pathological findings, management, and prognoses have not been systematically summarized. Therefore, there have been neither standard diagnostic criteria nor therapeutic methodologies established, to date. To systematically summarize the information and to compare these disease entities, we have summarized the characteristics of FMD and SAM in the gastroenterological regions by reviewing the cases reported thus far. The information summarized will be helpful for physicians treating these patients in an emergency care unit and for the differential diagnosis of other diseases showing severe abdominal pain.

关键词： Fibromuscular dysplasia Segmental arterial mediolysis Mesenteric lesion diagnosis Humans

Effect of double platinum agents, combination of miriplatintransarterial oily chemoembolization and cisplatinhepatic arterial infusion chemotherapy, in patients with hepatocellular carcinoma: Report of two cases

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World Journal of Clinical Cases 2017年第6期5卷 238-246页

作者： Kohei Ogawa Kenya Kamimura Yukari Watanabe Yosuke Motai Daisuke Kumaki Ryoya Seki Akira Sakamaki satoshi abe Hirokazu Kawai Takeshi Suda satoshi Yamagiwa Shuji Terai Division of Gastroenterology and Hepatology Graduate School of Medical and Dental Sciences Niigata University Department of Gastroenterology and Hepatology Uonuma Institute of Community Medicine Niigata Medical and Dental Hospital

Hepatocellular carcinoma(HCC) is one of the most common cancers and the third highest cause of cancerassociated mortality worldwide. The treatment of HCC is complicated by its variable biological behavior and the frequent coexistence of chronic liver disease, particularly cirrhosis. To date, multiple treatment modalities have been developed according to the stage of the tumor and the hepatic functional reserve, including transarterial treatments such as transarterial chemoembolization, transarterial oily chemoembolization(TOCE), and hepatic arterial infusion chemotherapy(HAIC). We conducted a phase I and II study of the combination therapy with double platinum agents, miriplatin and cisplatin, and confirmed its safety and efficacy. Here, we describe two cases of unresectable HCC who were successfully treated by miriplatin-TOCE/cisplatin-HAIC combination therapy, resulting in complete responses with no significant adverse events. This report will provide that the combination therapy can be the therapeutic option for HCC patients in the advanced stage.

关键词： Hepatocellular carcinoma Double platinum Transarterial oily chemoembolization Hepatic arterial infusion chemotherapy Combination

Gravity assistance enables liver stiffness measurements to detect liver fibrosis under congestive circumstances

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World Journal of Hepatology 2022年第4期14卷 778-790页

作者： Takeshi Suda Ai Sugimoto Tsutomu Kanefuji Atsushi abe Takeshi Yokoo Takahiro Hoshi satoshi abe Shinichi Morita Kazuyoshi Yagi Masashi Takahashi Shuji Terai Department of Gastroenterology and Hepatology Uonuma Institute of Community MedicineNiigata University Medical and Dental HospitalMinami Uonuma 949-7302NiigataJapan Division of Thoracic and Cardiovascular Surgery Graduate School of Medical and Dental SciencesNiigata UniversityNiigata 951-8122Japan Department of Gastroenterology and Hepatology Tsubame Rosai HospitalTsubame 959-1228NiigataJapan Department of Administration Joetsu-Area General Health Care CenterJoetsu 943-0803NiigataJapan Department of Preemptive Medicine for Digestive Diseases and Healthy Active Life Niigata University School of MedicineNiigata 951-8122Japan Division of Gastroenterology and Hepatology School of Medical and Dental SciencesNiigata UniversityNiigata 951-8122Japan

BACKGROUND As survival has been prolonged owing to surgical and medical improvements,liver failure has become a prognostic determinant in patients with congestive heart *** hepatopathy,an abnormal state of the liver as a result of congestion,insidiously proceed toward end-stage liver disease without effective biomarkers evaluating pathological *** measurements of shear wave elastography cannot qualify liver fibrosis,which is a prognosticator in any type of chronic liver disease,in cases of congestion because congestion makes the liver stiff without *** hypothesized that the effects of congestion and fibrosis on liver stiffness can be dissociated by inducing architectural deformation of the liver to expose structural *** establish a strategy measuring liver stiffness as a reflection of architectural rigidity under *** Two-dimensional shear wave elastography(2dSWE)was measured in the supine(Sp)and left decubitus(Ld)positions in 298 consecutive cases as they were subjected to an ultrasound study for various liver *** of interest were placed at twelve sites,and the median and robust coefficient of variation were *** data were compared using the Mann-Whitney U or Kruskal-Wallis test followed by Dunn's post-hoc multiple *** inferior vena cava(IVC)diameters at different body positions were compared using the Wilcoxon matched pairs signed rank *** number of cases with cardiothoracic ratios greater than or not greater than 50%was compared using Fisher’s exact test.A correlation of 2dSWE between different body positions was evaluated by calculating Spearman correlation *** The IVC diameter was significantly reduced in Ld in subjects with higher 2dSWE values in Ld(LdSWE)than in Sp(SpSWE)(P=0.007,(average±SD)13.9±3.6 vs 13.1±3.4 mm)but not in those with lower LdSWE values(P=0.32,13.3±3.5 vs 13.0±3.5 mm).In 81 subjects,SpSWE was increased or decreased in

关键词： Shear wave elastography Inferior vena cava diameter Congestive hepatopathy Liver fibrosis Body positions Fibrosis-4 index

A Study on Improvement of RANS Analysis for Erosion of Density Stratified Layer of Multicomponent Gas by Buoyant Jet in a Containment Vessel

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Journal of Energy and Power Engineering 2015年第7期9卷 599-607页

作者： satoshi abe Masahiro Ishigaki Yasuteru Sibamoto Taisuke Yonomoto Thermalhydraulic Safety Research Group Nuclear Safety Research Center Japan Atomic Energy Agency Ibaraki 319-1195 Japan

The analysis on a density stratification layer consisting of multiple gases in the reactor containment vessel is important for the safety assessment of sever accidents. The JAEA （Japan Atomic Energy Agency） has started the project on the containment thermal hydraulics. We carried out CFD （computational fluid dynamics） analyses in order to investigate the erosion of the density stratification layer by a vertical buoyant jet under this project. We used the RANS （Reynolds averaged numerical simulation） and LES （large eddy simulation） models to analyze the erosion of a density stratification layer by a vertical buoyant jet in a small vessel which represents a containment vessel. This numerical study calculates the turbulent mixing of a two-component （air and helium） gas mixture. The turbulence models used for the RANS analyses are two types of k-ε models. The first model is the low Reynolds number k-ε model developed by Launder and Sharma. The second model is modified from the first model in order to accurately consider the turbulent production and damping in a stratification layer. The results indicated while the erosion rate calculated by the low-Re k-ε model was much faster than that of the LES model, the modified k-ε model could calculate the erosion rate similar to the LES result.

关键词： Density stratification layer containment vessel CFD Kato-Launder modification Katsuki model

Prognostic factors in heart failure patients with cardiac cachexia

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Journal of Geriatric Cardiology 2020年第1期17卷 26-34页

作者： Yu Sato Akiomi Yoshihisa Yusuke Kimishima Tetsuro Yokokawa satoshi abe Takeshi Shimizu Tomofumi Misaka Shinya Yamada Takamasa Sato Takashi Kaneshiro Masayoshi Oikawa Atsushi Kobayashi Takayoshi Yamaki Hiroyuki Kunii Yasuchika Takeishi Department of Cardiovascular Medicine Fukushima Medical UniversityFukushimaJapan Department of Advanced Cardiac Therapeutics Fukushima Medical UniversityFukushimaJapan

Objective To clarify whether cardiac cachexia(CC)alters the prognostic impact of other general risk factors in patients with heart failure(HF).Methods This was an observational *** was defined as the combination of a body mass index of5 mg/L;hemoglobin<12 g/dL;and/or albumin<3.2 g/d *** divided 1608 hospitalized HF patients into a CC group(n=176,10.9%)and a non-CC group(n=1432,89.1%).The primary endpoints were cardiac event and all-cause *** The presence of CC showed significant interactions with other risk factors including cancer,estimated glomerular filtration rate(eGFR),and sodium in predicting these *** Cox proportional analysis revealed that use of a blockers[hazard ratio(HR)=1.900,95%confidence interval(CI):1.045–3.455,P=0.035]and eGFR(HR=0.989,95%CI:0.980–0.998,P=0.018)were independent predictors of cardiac event in the CC group,while age(HR=1.020,95%CI:1.002–1.039,P=0.029)and hemoglobin(HR=0.844,95%CI:0.734–0.970,P=0.017)were independent predictors of all-cause *** survival classification and regression tree analysis showed the optimal cut-off points for cardiac event(eGFR:59.9 m L/min per 1.73 m^2)and all-cause death(age,83 years old;hemoglobin,10.1 g/dL)in the CC *** In predicting prognosis,CC showed interactions with several risk *** function,age,and hemoglobin were pivotal markers in HF patients with CC.

关键词： Body mass index Cachexia Heart failure Mortality Prognosis

Rational arrangement of measuring shear wave speed in the liver

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World Journal of Gastroenterology 2019年第20期25卷 2503-2513页

作者： Takeshi Yokoo Tsutomu Kanefuji Takeshi Suda Itsuo Nagayama Takahiro Hoshi satoshi abe Shinichi Morita Hiroteru Kamimura Kenya Kamimura Atsunori Tsuchiya Masaaki Takamura Kazuyoshi Yagi Shuji Terai Department of Preemptive Medicine for Digestive Diseases and Healthy Active Life Niigata University School of MedicineNiigataNiigata 951-8122Japan Division of Gastroenterology and Hepatology Niigata Tokamachi HospitalTokamachiNiigata 948-0065Japan Department of Gastroenterology and Hepatology Uonuma Institute of Community MedicineNiigata University Medical and Dental HospitalMinami UonumaNiigata 949-7302Japan Division of Gastroenterology and Hepatology Graduate School of Medical and Dental SciencesNiigata UniversityNiigata 951-8122Japan

BACKGROUND Shear wave speed has been widely applied to quantify a degree of liver fibrosis. However, there is no standardized procedure, which makes it difficult to utilize the speed universally. AIM To provide procedural standardization of shear wave speed measurement. METHODS Point shear wave elastography (pSWE) was measured in 781 patients, and twodimensional shear wave elastography (2dSWE) was measured on the same day in 18 cases. Regions-of-interest were placed at 12 sites, and the median and robust coefficient-of-variation (CVR) were calculated. A residual sum-of-square (Σdi2) was computed for bootstrap values of 1000 iterations in 18 cases with each assumption of 1 to 12 measurements. The proportion of the Σdi2 (%Σdi2) was calculated as the ratio of Σdi2 to pSWE after converting it based on the correlation between pSWE and 2dSWE. RESULTS The CVR showed a significantly broader distribution in the left lobe (P < 0.0001),and the smallest CVR in the right anterior segment that covered 95% cases was 40.4%. pSWE was significantly higher in the left lobe than in the right lobe (1.63 ± 0.78 m/s vs 1.61 ± 0.78 m/s, P = 0.0004), and the difference between the lobes became further discrete when the subjects were limited to the cases with a CVR less than 40.4% in any segment (1.76 ± 0.80 m/s vs 1.70 ± 0.82 m/s, P < 0.0001). The highest values of the CVR in every 0.1 m/s interval were plotted in convex upward along pSWE and peaked at 1.93 m/s. pSWE and 2dSWE were significantly correlated (P < 0.0001, r = 0.95). In 216000 resamples from 18 cases, the %Σdi2 of 12 sites was 8.0% and gradually increased as the acquisition sites decreased to reach a significant difference with a %Σdi2 of 7 sites (P = 0.027). CONCLUSION These data suggest that shear wave speed should be measured at 8 or more sites of spreading in both lobes.

关键词： Liver stiffness Ultrasound Shear wave elastography Acoustic radiation force impulse Heterogeneity

Location of Early Colorectal Cancers at Fold-top May Reduce the Risk of Lymph Node Metastasis

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Location of Early Colorectal Cancers at Fold-top May Reduce ...

Location of Early Colorectal Cancers at Fold-top May Reduce the Risk of Lymph Node Metastasis

第八届国际治疗内镜和消化疾病学术会议

作者： Takeshi Terai satoshi abe Naoto Sakamoto Akihito Nagabara Toshifumi Ohkusa Tatsuo Ogihara Nobuhiro Sato Department of Gastroenterology Juntendo University School of Medicine Tokyo Japan Department of Gastroenterology Juntendo University School of Medicine Tokyo Japan Department of Gastroenterology Juntendo University School of Medicine Tokyo Japan Department of Gastroenterology Juntendo University School of Medicine Tokyo Japan Department of Gastroenterology Juntendo University School of Medicine Tokyo Japan Department of Gastroenterology Juntendo University School of Medicine Tokyo Japan Department of Gastroenterology Juntendo University School of Medicine Tokyo Japan

＜正＞Purpose: The aim of this study was to look for significant correlations between location of early colorectal cancer, distance from muscularis mucosae to muscularis propria and the frequency of lymph node metastasis. Methods: A total of 166 early colorectal cancers, including 67 surgically resected lesions, were evaluated. The cancers were divided into two groups: metastatic and nonmetastatic. Cancer lesions were further subtyped at the fold-top or the fold-bottom. Macroscopic classifications and histology were

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Location of Early Colorectal Cancers at Fold-top May Reduce ...