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Correlation between smoking habit and surgical outcomes on viral-associated hepatocellular carcinomas

World Journal of Gastroenterology 2018年第1期24卷 58-68页

作者： Keita Kai Sho Komukai Hiroki Koga koutaro yamaji Takao Ide Atsushi Kawaguchi Shinichi Aishima Hirokazu Noshiro Department of Pathology Saga University Hospital Clinical Research Center Saga University Hospital Department of Surgery Saga University Faculty of Medicine Department of Pathology and Microbiology Saga University Faculty of Medicine Center for Comprehensive Community Medicine Saga University Faculty of Medicine

AIM To investigate the association between smoking habits and surgical outcomes in hepatitis B virus(HBV)-related hepatocellular carcinoma(HCC)(B-HCC) and hepatitis C virus(HCV)-related HCC(C-HCC) and clarify the clinicopathological features associated with smoking status in B-HCC and C-HCC *** We retrospectively examined the cases of the 341 consecutive patients with viral-associated HCC(C-HCC,n = 273; B-HCC, n = 68) who underwent curative surgery for their primary lesion. We categorized smoking status at the time of surgery into never, exand current smoker. We analyzed the B-HCC and C-HCC groups' clinicopathological features and surgical outcomes, i.e., disease-free survival(DFS), overall survival(OS), and disease-specific survival(DSS).Univariate and multivariate analyses were performed using a Cox proportional hazards regression model. We also performed subset analyses in both patient groups comparing the current smokers to the other *** The multivariate analysis in the C-HCC group revealed that current-smoker status was significantly correlated with both OS(P = 0.0039) and DSS(P = 0.0416).In the B-HCC patients, no significant correlation was observed between current-smoker status and DFS, OS,or DSS in the univariate or multivariate analyses. The subset analyses comparing the current smokers to the other patients in both the C-HCC and B-HCC groups revealed that the current smokers developed HCC at significantly younger ages than the other patients irrespective of viral infection *** A smoking habit is significantly correlated with the overall and disease-specific survivals of patients with C-HCC. In contrast, the B-HCC patients showed a weak association between smoking status and surgical outcomes.

关键词： Hepatocellular carcinoma Hepatitis B virus Hepatitis C virus Smoking Surgery Prognosis

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Impact of smoking habit on surgical outcomes in non-B non-C patients with curative resection for hepatocellular carcinoma

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World Journal of Gastroenterology 2017年第8期23卷 1397-1405页

作者： Keita Kai Hiroki Koga Shinichi Aishima Atsushi Kawaguchi koutaro yamaji Takao Ide Junji Ueda Hirokazu Noshiro Department of Pathology Saga University Hospital Departments of Surgery Saga University Hospital Pathology and Microbiology Saga University Hospital Center for Comprehensive Community Medicine Saga University Faculty of Medicine

To analyzed the correlation between smoking status and surgical outcomes in patients with non-B non-C hepatocellular carcinoma (NBNC-HCC), and we investigated the patients’ clinicopathological characteristics according to smoking *** retrospectively analyzed the consecutive cases of 83 NBNC-HCC patients who underwent curative surgical treatment for the primary lesion at Saga University Hospital between 1984 and December 2012. We collected information about possibly carcinogenic factors such as alcohol abuse, diabetes mellitus, obesity and smoking habit from medical records. Smoking habits were subcategorized as never, ex- and current smoker at the time of surgery. The diagnosis of non-alcoholic steatohepatitis (NASH) was based on both clinical information and pathological *** abuse, diabetes mellitus, obesity and NASH had no significant effect on the surgical outcomes. Current smoking status was strongly correlated with both overall survival (P = 0.0058) and disease-specific survival (P = 0.0105) by multivariate analyses. Subset analyses revealed that the current smokers were significantly younger at the time of surgery (P = 0.0002) and more likely to abuse alcohol (P = 0.0188) and to have multiple tumors (P = 0.023).CONCLUSIONCurrent smoking habit at the time of surgical treatment is a risk factor for poor long-term survival in NBNC-HCC patients. Current smokers tend to have multiple HCCs at a younger age than other patients.

关键词： Hepatocellular carcinoma Non-B Non-C Smoking Surgery Prognosis

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Occult hepatitis B virus infection and surgical outcomes in non-B, non-C patients with curative resection for hepatocellular carcinoma

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World Journal of Hepatology 2017年第35期9卷 1286-1295页

作者： Hiroki Koga Keita Kai Shinichi Aishima Atsushi Kawaguchi koutaro yamaji Takao Ide Junji Ueda Hirokazu Noshiro Department of Surgery Saga University Faculty of Medicine Department of Pathology Saga University Hospital Department of Pathology and Microbiology Saga University Faculty of Medicine Center for Comprehensive Community Medicine Saga University Faculty of Medicine

AIM To investigate the prevalence, clinicopathological characteristics and surgical outcomes of occult hepatitis B virus(HBV) infection(OBI) in patients with non-B, non-C(NBNC) hepatocellular carcinoma(HCC).METHODS This study retrospectively examined the cases of 78 NBNC patients with curative resection for HCC for whom DNA could be extracted from formalin-fixed paraffin-embedded tissue. OBI was determined by the HBV-DNA amplification of at least two different sets of primers by TaqM an realtime polymerase chain reaction. Possibly carcinogenetic factors such as alcohol abuse, diabetes mellitus, obesity and non-alcoholic steatohepatitis(NASH) were examined. Surgical outcomes were evaluated according to diseasefree survival(DFS), overall survival(OS) and diseasespecific survival(DSS).RESULTS OBI was found in 27/78 patients(34.6%) with NBNC HCC. The OBI patients were significantly younger than the non-OBI cases at the time of surgery(average age 63.0 vs 68.1, P = 0.0334) and the OBI cases overlapped with other etiologies significantly more frequently compared to the non-OBI cases(P = 0.0057). OBI had no impact on the DFS, OS or DSS. Only tumorrelated factors affected these surgical *** Our findings indicate that OBI had no impact on surgical outcomes. The surgical outcomes of NBNC HCC depend on early tumor detection; this reconfirms the importance of a periodic medical examination for individuals who have NBNC HCC risk factors.

关键词： Hepatocellular carcinoma Non-B non-C Occult hepatitis B virus infection Surgery Surgical outcome

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Occult HBV infection status and its impact on surgical outcomes in patients with curative resection for HCV-associated hepatocellular carcinoma

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Hepatobiliary Surgery and Nutrition 2018年第6期7卷 443-453页

作者： koutaro yamaji Keita Kai Sho Komukai Hiroki Koga Takao Ide Atsushi Kawaguchi Hirokazu Noshiro Shinichi Aishima Department of Surgery Saga University Faculty of MedicineSaga 849-8501Japan Department of Pathology&Microbiology Saga University Faculty of MedicineSaga 849-8501Japan Department of Pathology Saga University HospitalSaga 849-8501Japan Clinical Research Center Saga University HospitalSaga 849-8501Japan Center for Comprehensive Community Medicine Saga University Faculty of MedicineSaga 849-8501Japan

Background:We sought to clarify the prevalence of occult hepatitis B virus(HBV)infection(OBI)and to determine whether OBI affects the surgical outcomes in curatively resected Japanese patients with hepatitis C virus(HCV)-related hepatocellular carcinoma(HCC).Methods:A total of 257 patients with HCV-related HCC who underwent curative surgical resection were *** enrolled patients were serologically negative for HBV surface antigen and positive for HCV *** was extracted from formalin-fixed paraffin-embedded liver *** was determined by the HBV-DNA amplification of at least two different sets of primers by TaqMan real-time polymerase chain *** outcomes were evaluated according to overall survival(OS),disease-specific survival(DSS),and disease-free survival(DFS).Results:OBI was identified in 15 of the 257(5.8%)*** the multivariate analyses,the factors significantly correlated with OS were BMI>25(P=0.0416),portal vein invasion(P=0.0065),and multiple tumors(P=0.0064).The only factor significantly correlated with DSS was T-stage(P=0.0275).The factors significantly correlated with DFS were liver fibrosis(P=0.0017)and T-stage(P=0.0001).The status of OBI did not show any significant correlation with OS,DSS or DFS,but a weak association with DSS(P=0.0603)was ***:The prevalence of OBI was 5.8%in 257 cases of HCV-related *** a weak association between DSS and OBI was observed,and statistical analyses were limited by small number of OBI cases,no significant correlation between OBI and surgical outcomes was detected.

关键词： Occult hepatitis B virus infection(OBI) hepatocellular carcinoma(HCC) hepatitis C virus(HCV) surgery prognosis

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Plant Nutrition for Human Nutrition:Hints from Rice Research and Future Perspectives

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Molecular Plant 2020年第6期13卷 825-835页

作者： Sheng Huang Peitong Wang Naoki yamaji Jian Feng Ma Institute of Plant Science and Resources Okayama UniversityChuo 2-20-1Kurashiki 710-0046Japan

Both plants and humans require mineral elements for their healthy growth and *** elements in the soil are taken up by the plant roots and transported to the edible parts for human consumption through various different *** ideal future crop for human health should be rich in essential mineral elements but with less toxic elements in the edible ***,due to the great difference in the numbers and amounts of mineral elements required between plants and humans,it is a challenge to balance plant growth and nutrient requirement for *** this article,we mainly focus on the transport system of mineral elements from soil to grain in rice,a staple food for half of the world's population,and discuss recent progress on the underlying genetic and physiological *** are given for silicon,zinc,and iron essential/beneficial for both plants and humans,selenium and iodine only essential for humans,and toxic cadmium and arsenic for all *** of some transporters for these elements,especially those localized in the node for allocation of mineral elements to the grain,has been successful in generating rice with higher density and bioavailability of essential elements but with less accumulation of toxic *** provide our perspectives toward breeding future crops for human health.

关键词： plant nutrition human health mineral elements transporter rice biofortification

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Improvement of solidification model and analysis of 3D channel blockage with MPS method

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Frontiers in Energy 2021年第4期15卷 946-958页

作者： Reo KAWAKAMI Xin LI Guangtao DUAN Akifumi yamaji Isamu SATO Tohru SUZUKI Cooperative Major in Nuclear Energy Graduate School and Advanced Science and EngineeringFaculty of Science and EngineeringWaseda University3-4-1 OkuboShinjuku-kuTokyo169-8555Japan Department of Nuclear Engineering and Management The University of Tokyo7-3-1 HongoBunkyo-kuTokyo113-8656Japan Department of Nuclear Safety Engineering Faculty of EngineeringTokyo City University1-28-1 TamazutsumiSetagaya-kuTokyo158-0087Japan

In a severe accident of a nuclear power reactor,coolant channel blockage by solidified molten core debris may significantly influence the core degradations that *** moving particle semi-implicit(MPS)method is one of the Lagrangian-based particle methods for analyzing incompressible *** the study described in this paper,a novel solidification model for analyzing melt flowing channel blockage with the MPS method has been developed,which is suitable to attain a sufficient numerical accuracy with a reasonable calculation *** prompt velocity diffusion by viscosity is prioritized over the prompt velocity correction by the pressure term(for assuring incompressibility)within each time step over the“mushy zone”(between the solidus and liquidus temperature)for accurate modeling of solidification before fixing the coordinates of the completely solidified *** sustain the numerical accuracy and stability,the corrective matrix and particle shifting techniques have been applied to correct the discretization errors from irregular particle arrangements and to recover the regular particle arrangements,*** validate the newly developed algorithm,2-D benchmark analyses are conducted for steady-state freezing of the water in a laminar flow between two parallel ***,3-D channel blockage analyses of a boiling water reactor(BWR)fuel support piece have been *** results show that a partial channel blockage develops from the vicinity of the speed limiter,which does not fully develop into a complete channel blockage,but still diverts the incoming melt flow that follows to the orifice region.

关键词： boiling water reactor(BWR) severe accident channel blockage moving particle semi-implicit(MPS)method solidification*

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Loss on Ignition-Based Indices for Evaluating Organic Matter Characteristics of Littoral Sediments

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Pedosphere 2017年第5期27卷 978-984页

作者： Narong TOUCH Tadashi HIBINO Hiroki TAKATA Satoshi yamaji Coastal Engineering Laboratory Department of Civil and Environmental Engineering Hiroshima University

Understanding organic matter characteristics （e.g., amount and state） of sediments is necessary for evaluating both the sediment and water environments; however, methods that have been proposed to investigate these characteristics are relatively expensive. This study attempted to evaluate the organic matter characteristics of littoral sediments by employing solely the loss on ignition （LOI） method, which is the most economical and accessible method in developing countries. Different types of sediments were first oven dried at 100 ~C and then continuously burned at 200, 300, 400, 500, and 600 ~C for 4 h at each temperature. The mass LOI at each temperature was calculated and compared with the 100 ℃oven-dried weight. Our results suggested that the mass LOI across the temperature range of 200-300 ℃（LOI200-300）：mass LOI at 600 ℃ （LOI600） ratio （LOI200-300/LOI600） could represent different types of sediments as well as the organic matter：organic C ratio. Compared with the sediments unaffected by wastewater, the sediments that were more influenced by the inflow of domestic wastewater had a higher LOI200-300/LOI600. Interestingly, LOI200-300/LOI600 could also represent changes in the organic matter characteristics as a function of organic matter decomposition in sediments. In conclusion, the organic matter characteristics of littoral sediments could be evaluated using solely the LOI method, particularly with LOI200 - 300/LOI600.

关键词： C loss decomposition mass loss on ignition organic matter state sediment type

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Knockout of a rice K5.2 gene increases Ca accumulation in the grain

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Journal of Integrative Plant Biology 2024年第2期66卷 252-264页

作者： Peitong Wang Naoki yamaji Namiki Mitani-Ueno Jun Ge Jian Feng Ma National Key Laboratory of Crop Genetics&Germplasm Enhancement and Utilization College of Resources and Environmental SciencesNanjing Agricultural UniversityNanjing 210095China Institute of Plant Science and Resources Okayama UniversityKurashiki 710-0046Japan

Rice is a staple food for half of the world’s population,but it is a poor dietary source of calcium(Ca)due to the low *** is an important issue to boost Ca concentration in this grain to improve Ca deficiency risk,but the mechanisms underlying Ca accumulation are poorly ***,we obtained a rice(Oryza sativa)mutant with high shoot Ca *** mutant exhibited 26%-53% higher Ca in shoots than did wild-type rice(WT)at different Ca *** concentration in the xylem sap was 36% higher in the mutant than in the *** was no difference in agronomic traits between the WT and mutant,but the mutant showed 25% higher Ca in the polished grain compared with the ***-based cloning combined with a complementation test revealed that the mutant phenotype was caused by an 18-bp deletion of a gene,OsK5.2,belonging to the Shaker-like K+channel ***5.2 was highly expressed in the mature region of the roots and its expression in the roots was not affected by Ca levels,but upregulated by low *** showed that OsK5.2 was mainly expressed in the pericycle of the *** together,our results revealed a novel role for OsK5.2 in Ca translocation in rice,and will be a good target for Ca biofortification in rice.

关键词： accumulation biofortification calcium OsK5.2 pericycle rice translocation

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Assessment of System of Rice Intensification(SRI) and Conventional Practices under Organic and Inorganic Management in Japan

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Rice science 2011年第4期18卷 311-320页

作者： Tejendra CHAPAGAIN Andrew RISEMAN Eiji yamaji Faculty of Land and Food Systems the University of British Columbia344-2357 Main MallVancouverBC V6T 1Z4Canada Graduate School of Frontier Sciences the University of Tokyo5-1-5 KashiwanohaKashiwaChiba 277-8563Japan

The system of rice intensification(SRI) is a production system that involves the adoption of certain changes in management practices for rice cultivation that create a better growing environment for the *** system was compared with conventional practices and assessed under organic and inorganic *** practices showed significant response in root number,number of effective tillers per hill,days to flowering and harvest *** addition,SRI was found effective in minimizing pest and disease incidence,shortening the crop cycle,and improving plant *** yield was not different from conventional *** for harvest index and plant lodging percentage,there were no significant effects from management *** responses were noted when SRI practices were combined with organic management for plant height,number of effective tillers per hill,days to flowering and to *** improved panicle characteristics,lower plant lodging percentage and higher harvest index that ultimately led to comparable grain *** returns increased approximately 1.5 times for SRI-organic management regardless of the added labor requirements for weed ***,comparatively higher grain yield from conventional-inorganic methods underscore the need for further investigations in defining what constitutes an optimum set of practices for an SRI-organic system specifically addressing grain yield and weed management.

关键词： system of rice intensification conventional practices organic and inorganic management rice growth

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Deformed Relativistic Hartree Theory in Coordinate Space and in Harmonic Oscillator Basis

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Chinese Physics Letters 2000年第10期17卷 717-719页

作者： ZHOU Shan-Gui MENG Jie Shuhei yamaji YANG Si-chun Department of Technical Physics Peking UniversityBeijing 100871 Institute of Heavy Ion Physics Peking UniversityBeijing 100871 Center of Theoretical Nuclear Physics National Laboratory of Heavy Ion AcceleratorLanzhou 730000 Cyclotron Center RIKENHirosawa 2-1Wako-shiSaitama351-0198 Japan

The deformed relativistic Hartree theory(DRH)is solved both in coordinate space(DRH-c)and in harmonic oscillator basis(DRH-o).Results obtained from these two methods are compared in *** DRH-c and DRH-o calculations give similar total binding energies,deformation,level structures and radii for nitrogen iso topes,while their descriptions on the density distributions for drip-line nuclei are very *** large spatiai istributions of nucleon densities,which is crucial to understand a weakly bound system,can only be obtained by DRH-c *** implies that the DRH theory should be solved in coordinate space in order to describe uclei close to the drip line.

关键词： Hartree coordinate details

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