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Body mass index is associated with age-at-onset of HCV-infected hepatocellular carcinoma patients

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World Journal of Gastroenterology 2011年第7期17卷 914-921页

作者： Takumi Akiyama Toshihiko Mizuta Seiji Kawazoe Yuichiro Eguchi Yasunori Kawaguchi Hirokazu Takahashi iwata ozaki Kazuma Fujimoto Department of Internal Medicine Saga Medical School Department of Hepatology Saga Prefectural Hospital Department of Hepatology Saga Prefectural Hospital Saga 8408571 Japan

AIM: To identify factors associated with the age at onset of hepatitis C virus (HCV)-related hepatocellular carcinoma (HCC). METHODS: Five hundred and fifty-six consecutive patients positive for HCV antibody and treatment-nafive HCC diagnosed between 1995 and 2004 were analyzed. Patients were classified into three groups according to age at HCC onset: 60 years old were lower and mean BMI values of female patients 25 kg/m2 [hazard ratio (HR), 1.8, P = 0.045], excessive alcohol consumption (HR, 2.5, P = 0.024), male sex (HR, 3.6, P = 0.002), and GGT levels > 50 IU/L (HR, 2.4, P = 0.014) were independently associated with HCC onset in patients < 60 years. Low ALT level was the only factor associated with HCC onset in patients aged ≥ 80 years. CONCLUSION: Increased BMI is associated with increased risk for early HCC development in HCV-infected patients. Achieving recommended BMI and reducing alcohol intake could help prevent hepatic carcinogenesis.

关键词： Age-at-onset Hepatocellular carcinoma Hepatitis C virus Body mass index Alcohol consumption Sex difference

程序性细胞死亡因子4在胰腺癌组织中的表达及临床病理学意义

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中国医学科学院学报 2005年第5期27卷 597-600,T0002页

作者：马刚郭克建张浩尾崎岩太松桥幸子郑新宇董明中国医科大学附属第一医院普通外科沈阳110001 Health Administration Center Saga Medical School Saga Division of Hepatology and Metabolism Department of Internal MedicineSaga Medical SchoolSaga

目的探讨胰腺癌组织中程序性细胞死亡因子4(PDCD4)的表达及临床病理学意义。方法采用免疫组织化学方法检测69例胰腺癌石蜡标本中PDCD4表达,同时采用Western印迹杂交方法检测其中8例冷冻保存的新鲜胰腺癌及癌旁正常胰腺组织中PDCD4蛋白... 详细信息

目的探讨胰腺癌组织中程序性细胞死亡因子4(PDCD4)的表达及临床病理学意义。方法采用免疫组织化学方法检测69例胰腺癌石蜡标本中PDCD4表达,同时采用Western印迹杂交方法检测其中8例冷冻保存的新鲜胰腺癌及癌旁正常胰腺组织中PDCD4蛋白的表达情况,观察其与胰腺癌患者临床病理学参数之间的关系。结果Western印迹分析结果显示,同癌旁正常胰腺组织相比,8例胰腺癌组织中PDCD4蛋白表达均明显减弱或缺失。69例胰腺癌中,PDCD4低表达(阳性细胞数<30%)者占52.2%。其中,在中、低分化腺癌中,PDCD4低表达者分别为67.4%(15/23)和70%(14/20),而高分化腺癌仅有26.9%(7/26)为低表达。相关分析显示,PDCD4表达减弱或缺失与胰腺癌的不良分化相关(P<0.01),而与患者的性别、年龄、肿瘤部位和TNM分期无关。结论PDCD4蛋白在胰腺癌中多呈低表达,并与胰腺癌的分化程度相关,其在胰腺癌的发生、发展过程中可能起重要作用。

关键词：胰腺癌程序性细胞死亡因子4 免疫组织化学

大肠癌组织中PDCD4表达的临床病理学意义及其对预后的影响(英文)

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中国现代医学杂志 2007年第11期17卷 1281-1286页

作者：马刚张浩董明郑新宇尾崎岩太松桥幸子郭克建中国医科大学附属第一医院普外二科辽宁沈阳110001 日本佐贺大学医学部代谢内分泌研究室日本佐贺大学医学部保健管理中心

目的检测肿瘤抑制基因PDCD4在大肠癌组织中的表达,探讨其在大肠癌发生发展中的作用及对预后的影响。方法应用western印迹分析和免疫组织化学染色方法,检测了大肠癌及癌旁的正常组织中PDCD4的表达,观察其与大肠癌患者临床病理学参数之间... 详细信息

目的检测肿瘤抑制基因PDCD4在大肠癌组织中的表达,探讨其在大肠癌发生发展中的作用及对预后的影响。方法应用western印迹分析和免疫组织化学染色方法,检测了大肠癌及癌旁的正常组织中PDCD4的表达,观察其与大肠癌患者临床病理学参数之间的关系,并分析其对预后的影响。结果Western印迹分析和免疫组化染色均显示,与癌旁的正常大肠组织相比,癌组织中PDCD4的表达明显下降。免疫组化染色显示,在65例大肠癌组织中,高、中、低分化腺癌分别占49.2%(32/65)、33.9%(22/65)和16.9%(11/65)。在高、中、低分化腺癌中,PDCD4(+)表达率分别为81.3%(26/32)、50.0%(11/22)和18.2%(2/11)。相关分析显示,PDCD4的表达水平与大肠癌的程度密切相关,分化越差,表达越低。Kaplan-Meier生存分析显示,PDCD4的表达水平与预后有关,PDCD4阴性者预后差。应用Cox比例风险模型进行多因素分析,结果显示,本组资料中,Dukes分期、PDCD4表达水平以及术后是否进行化疗影响大肠癌的预后。结论本研究显示,大肠癌组织中PDCD4的表达下降,并与肿瘤的分化程度和不良预后相关。作为一种肿瘤抑制基因,PDCD4可能在大肠癌的发生发展中起重要作用。PDCD4还可能作为有效的预后因子,有助于判断预后。

关键词：大肠癌 PDCD4 免疫组织化学

程序性细胞死亡因子4在消化系统肿瘤中表达及其与肿瘤分化的关系

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中华肿瘤防治杂志 2007年第4期14卷 249-253页

目的:探讨PDCD4在胃癌大肠癌和胰腺癌等消化系统肿瘤中的表达及其与肿瘤分化的关系。方法:应用Western印迹杂交和免疫组织化学研究方法检测了PDCD4在胃癌(61例)、大肠癌(65例)和胰腺癌(69例)3种消化系统肿瘤中的表达,观察其与相应的临... 详细信息

目的:探讨PDCD4在胃癌大肠癌和胰腺癌等消化系统肿瘤中的表达及其与肿瘤分化的关系。方法:应用Western印迹杂交和免疫组织化学研究方法检测了PDCD4在胃癌(61例)、大肠癌(65例)和胰腺癌(69例)3种消化系统肿瘤中的表达,观察其与相应的临床病理学参数之间的关系。结果:Western印迹分析和免疫组化染色结果显示,同癌旁正常组织相比,癌组织PDCD4蛋白表达明显下调。PDCD4蛋白表达与癌的分化程度密切相关,在高分化癌中呈高表达,随着癌分化程度下降,表达明显下调。而与性别、年龄和肿瘤的临床分期无关。结论:PDCD4蛋白在包括胃癌、大肠癌和胰腺癌在内的消化系统肿瘤中表达下降,并与癌的分化程度密切相关。提高PDCD4蛋白表达,可能会诱导肿瘤细胞分化和凋亡,从而抑制肿瘤的发生和发展。

关键词：消化系统肿瘤/病理学肿瘤蛋白质类/分析免疫组织化学

程序性细胞死亡因子4在胃癌组织中的表达及临床病理学意义

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中华肿瘤防治杂志 2006年第7期13卷 481-484页

作者：马刚刘江张浩董明郑新宇尾崎岩太松桥幸子郭克建中国医科大学附属第一医院普外二科辽宁沈阳110001 日本佐贺大学医学部代谢内分泌研究室日本佐贺大学医学部保健管理中心

目的：探讨胃癌组织中程序性细胞死亡因子4（programmed cell death 4，PDCD4）的表达及其临床病理学意义。方法：应用免疫组织化学和Western印迹杂交研究方法检测61例胃癌组织中PDCD4的表达，观察其与胃癌临床病理学参数之间的关系。... 详细信息

目的：探讨胃癌组织中程序性细胞死亡因子4（programmed cell death 4，PDCD4）的表达及其临床病理学意义。方法：应用免疫组织化学和Western印迹杂交研究方法检测61例胃癌组织中PDCD4的表达，观察其与胃癌临床病理学参数之间的关系。结果：免疫组化染色显示，在正常胃组织中，阳性细胞比例均在80％以上。61例胃癌中，PDCD4低表达者（阳性细胞比例〈30％）占65．6％（40／61），高表达（阳性细胞比例介于30％～80％）者占34．4％（21／61）。Western印迹分析结果显示，同癌旁正常组织相比，所有胃癌组织PDCD4蛋白表达均明显下调。相关分析表明，PDCD4表达下调或缺失与肿瘤的不良分化相关，P〈0．01，而与性别、年龄厦肿瘤的TNM分期无关。结论：PDCD4蛋白在胃癌中多呈低表达，并与胃癌的分化程度有关，在胃癌的发生、发展过程中起重要作用。

关键词：胃肿瘤/病理学免疫组织化学肿瘤蛋白质类/分析

Acetylene Vacuum Carburizing

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材料热处理学报 2004年第5期25卷 370-374页

作者： Hitoshi iwata JH CORPORATION Aichi Japan

Almost 30 years has passed since the publication of materials on vacuum carburizing technology, and is attracting a great deal of attention as a technology capable of being used as a substitute for gas carburizing technology. However, the technology was not popular except in specific fields. The main reason for this is due to a variety of harmful influences accompanying the sooting problems caused by CH4 or C3H8. We have succeeded in that the occurrence of sooting was suppressed by utilizing acetylene, at extremely low pressure for carburizing (below 1 kPa). This process is now showing the excellent quality and prospects for this technology in terms of quality, economy and safety. At present almost 70 practical mass production furnaces are used in production lines, in Japan and abroad. At this time, we will report summary of the present acetylene vacuum carburizing process and the actual results obtained by these acetylene vacuum carburizing furnaces for mass production.

关键词：乙炔真空渗碳大量生产低压

Nonlinear Magnetic Response of Superconducting Flux Arrays with Random Pinning

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Chinese Physics Letters 1997年第3期14卷 217-220页

作者： NI Jun GU Bing-lin Shuichi iwata Department of Physics Tsinghua UniversityBeijing 100084 Research into Artifacts Center for EngineeringThe University of TokyoKamaba 4-6-1Meguro-kuTokyo 153Japan

The static nonlinear magnetic response of randomly pinned flux-line lattice in a type-Ⅱ super-conductor has been investigated using variational replica-symmetry-broken method.A peak in the curve of susceptibility as a function of external magnetic field is *** the magnetic field is low,there is a softening in the susceptibility as an effect of pinning potential with nonzero correlation *** some critical magnetic field,the softening changes into *** reaching the maximum in hardening,the susceptibility decreases to its value of piire states with the increase of magnetic field.

关键词： method. field. susceptibility

First-principles calculation of phase equilibria and phase separation of the Fe-Ni alloy system

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Rare Metals 2006年第5期25卷 437-440页

作者： Ying Chen Shuichi iwata Tetsuo Mohri Department of Quantum Engineering and System Science School of Engineering The University of Tokyo Hongo 7-3-1 Bunkyo-ku Tokyo113-8656 Japan Graduate School of Frontier Sciences The University of Tokyo Hongo 7-3-1 Bunkyo-ku Tokyo 113-8656 Japan Division of Materials Science and Engineering Graduate School of Engineering Hokkaido University Kita-13 Nishi-8 Kita-ku Sapporo060-8628 Japan

Theoretical investigation of the phase equilibria of the Fe-Ni alloy has been performed by combining the FLAPW total energy calculations and the Cluster Variation Method through the Cluster Expansion Method. The calculations have proved the stabilization of the LIE phase at 1：3 stoichiometry, which is in agreement with the experimental result, and predicted the existence of L1 0 as a stable phase below 550 K; this L1 0 phase has been missing in the conventional phase diagram. The calculations are extended to the Fe-rich region that is characterized by a wide range phase separation and has drawn considerable attention because of the intriguing Invar property associated with a Fe concentration of 65%. To reveal the origin of the phase separation, a P-V curve in an entire concentration range is derived by the second derivative of free energy functional of the disordered phase with respect to the volume. The calculation confirmed that the phase separation is caused by the breakdown of the mechanical-stability criterion. The newly calculated phase separation line combined with the L1 0 and L12Eorder-disordered phase boundaries provides phase equilibria in the wider concentration range of the system. Furthermore, a coefficient of thermal expansion （CTE） is attempted by incorporating the thermal vibration effect through harmonic approximation of the Debye-Gruneisen model. The Invar behavior has been reproduced, and the origin of this anomalous volume change has been discussed.

关键词： Fe-Ni alloy system order-disorder separation magnetism first-principles calculations cluster variation method cluster expansion method Debye-Gruneisen model

Use of family structure information in interaction with environments for leveraging genomic prediction models

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The Crop Journal 2020年第5期8卷 843-854页

作者： Reyna Persa Hiroyoshi iwata Diego Jarquin Department of Agronomy and Horticulture University of Nebraska-LincolnLincolnNE 68583USA Graduate School of Agricultural and Life Sciences The University of TokyoBunkyoTokyo 113-8657Japan

The characterization of genomes with great detail offered by the modern genotyping platforms have opened a venue for accurately predicting the genotype-by-environment interaction(GE)effects of untested genotypes in different environmental *** developed statistical models have shown the advantages of including the GE interaction component in the prediction context using molecular markers,pedigree,or *** order to leverage the family information of highly structured populations when pedigree data is not available,we developed a model that uses the family membership *** proposed model extends the reaction norm model by including the interaction between families and environments(FE).A representative fraction of a soybean Nested Association Mapping population(16,187 grain yield records)comprising 38 bi-parental families(1358 genotypes)observed in 18 environments(2011,2012,and 2013)was used to contrast the proposed model with three conventional prediction *** crossvalidation scenarios(prediction of tested[CV2]and untested[CV1]genotypes)with a twofold design(50%for training and testing sets)were used for mimicking prediction situations that breeders face in *** showed that the family factor in interaction with environments explains a sizable amount of the phenotypic *** helped to improve the predictive ability with respect to the main effects model(GBLUP)around 41%(CV2)and 49%(CV1),and about 17%with respect to the conventional reaction norm *** inclusion of the FE term not only improved the global results but also significantly increased the prediction accuracy of those environments where the conventional models showed a very poor *** results show the importance of taking into consideration the family structure existing in breeding programs for improving the selection strategies in multi-parental populations.

关键词： interaction structure instead