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Effects of an oral iron chelator, deferasirox, on advanced hepatocellular carcinoma

World Journal of Gastroenterology 2016年第40期22卷 8967-8977页

作者： Issei Saeki Naoki Yamamoto Takahiro Yamasaki Taro Takami Masaki Maeda Koichi Fujisawa takuya iwamoto Toshihiko Matsumoto Isao Hidaka Tsuyoshi Ishikawa Koichi Uchida Kenji Tani Isao Sakaida Department of Gastroenterology and Hepatology Yamaguchi University Graduate School of Medicine Yamaguchi 755-8505 Japan Yamaguchi University Health Administration Center Yamaguchi 755-8511 Japan Department of Oncology and Laboratory Medicine Yamaguchi University Graduate School of Medicine Yamaguchi 755-8505 Japan Department of Human Nutrition Faculty of Nursing and Human Nutrition Yamaguchi 755-8502 Japan Center of Research and Education for Regenerative Medicine Yamaguchi University Graduate School of Medicine Yamaguchi Prefectural University Yamaguchi 755-8505 Japan Department of Veterinary Surgery Joint Faculty of Veterinary Medicine Yamaguchi University Yamaguchi 755-8511 Japan

AIM To evaluate the inhibitory effects of deferasirox(DFX) against hepatocellular carcinoma(HCC) through basic and clinical *** In the basic study, the effect of DFX was investigated in three hepatoma cell lines(Hep G2, Hep3 B, and Huh7), as well as in an N-nitrosodiethylamine-induced murine HCC model. In the clinical study, six advanced HCC patients refractory to chemotherapy were enrolled. The initial dose of DFX was 10 mg/kg per day and was increased by 10 mg/kg per day every week, until the maximum dose of 30 mg/kg per day. The duration of a single course of DFX therapy was 28 consecutive days. In the event of dose-limiting toxicity(according to the Common Terminology Criteria for Adverse Events v.4.0), DFX dose was *** Administration of DFX inhibited the proliferation of hepatoma cell lines and induced the activation of caspase-3 in a dose-dependent manner in vitro. In the murine model, DFX treatment significantly suppressed the development of liver tumors(P < 0.01), and significantly upregulated the mR NA expression levels of hepcidin(P < 0.05), transferrin receptor 1(P < 0.05), and hypoxia inducible factor-1α(P < 0.05) in both tumor and non-tumor tissues, compared with control mice. In the clinical study, anorexia and elevated serum creatinine were observed in four and all six patients, respectively. However, reduction in DFX dose led to decrease in serum creatinine levels in all patients. After the first course of DFX, one patient discontinued the therapy. We assessed the tumor response in the remaining five patients; one patient exhibited stable disease, while four patients exhibited progressive disease. The one-year survival rate of the six patients was 17%.CONCLUSION We demonstrated that DFX inhibited HCC in the basic study, but not in the clinical study due to dose-limiting toxicities.

关键词： Liver tumor Hepatocellular carcinoma Advanced stage Iron-chelator Deferasirox

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Complication of radiofrequent ablation for hepatocellular carcinoma

Complication of radiofrequent ablation for hepatocellular ca...

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作者： Morio Sato takuya iwamoto Nobuyuki Kawai Department of Radiology Wakayama Medical University Japan Department of Radiology Wakayama Medical University Japan Department of Radiology Wakayama Medical University Japan

Radiofrequent ablation(RFA)for treating hepatocellular carcinoma(HCC)has prevailed in Japan since it was assured legally to use in *** to algorithm of treating HCC,the application of RFA was 3 nodules whose diameter are less then 3cm or single nodule within 5cm in *** instruments are devided into expansive needle type and cool-tip *** tip needle system has been more accepted in our country because of small puncture *** RFA ablation,safety margin of more than 5mm is required to bring about local control. Incidence of local recurrence after RFA for HCC≦3cm and＞3cm were 6 to 21% and 8 to 40% respectively. Incidence of intrahepatic distant recurrence was 33 to 85% three years *** are also some reports decribing the complication and problems of *** presentation is focused on the complication of RFA.

关键词： Complication of radiofrequent ablation for hepatocellular carcinoma

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Treatment strategies for advanced hepatocellular carcinoma:Sorafenib vs hepatic arterial infusion chemotherapy

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World Journal of Hepatology 2018年第9期10卷 571-584页

作者： Issei Saeki Takahiro Yamasaki Masaki Maeda Takuro Hisanaga takuya iwamoto Koichi Fujisawa Toshihiko Matsumoto Isao Hidaka Yoshio Marumoto Tsuyoshi Ishikawa Naoki Yamamoto Yutaka Suehiro Taro Takami Isao Sakaida Department of Gastroenterology and Hepatology Yamaguchi University Graduate School of MedicineYamaguchi 755-8505Japan Department of Oncology and Laboratory Medicine Yamaguchi University Graduate School of MedicineYamaguchi 755-8505Japan Department of Medical Education Yamaguchi University Graduate School of MedicineYamaguchi 755-8505Japan Center of Research and Education for Regenerative Medicine Yamaguchi University Graduate School of MedicineYamaguchi755-8505Japan Center for Clinical Research Yamaguchi University HospitalYamaguchi 755-8505Japan Yamaguchi University Health Administration Center Yamaguchi 753-8511Japan

Sorafenib is used worldwide as a first-line standardsystemic agent for advanced hepatocellular carcinoma(HCC) on the basis of the results of two large-scale Phase Ⅲ trials. Conversely,hepatic arterial infusion chemotherapy(HAIC) is one of the most recommended treatments in Japan. Although there have been no randomized controlled trials comparing sorafenib with HAIC,several retrospective analyses have shown no significant differences in survival between the two therapies. Outcomes are favorable for HCC patients exhibiting macroscopic vascular invasion when treated with HAIC rather than sorafenib,whereas in HCC patients exhibiting extrahepatic spread or resistance to transcatheter arterial chemoembolization,good outcomes are achieved by treatment with sorafenib rather than HAIC. Additionally,sorafenib is generally used to treat patients with Child-Pugh A,while HAIC is indicated for those with either Child-Pugh A or B. Based on these findings,we reviewed treatment strategies for advanced HCC. We propose that sorafenib might be used as a first-line treatment for advanced HCC patients without macroscopic vascular invasion or Child-Pugh A,while HAIC is recommended for those with macroscopic vascular invasion or Child-Pugh A or B. Additional research is required to determine the best second-line treatment for HAIC non-responders with Child-Pugh B through future clinical trials.

关键词： Treatment strategy Hepatic arterial infusion chemotherapy Sorafenib Hepatocellular carcinoma

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Recent advances in treatment of follicular lymphoma: efficacy of PI3Kα/δ inhibitor (TQ-B3525)

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2341-2343页

作者： takuya Watanabe Department of Internal Medicine and Gastroenterology Watanabe Internal Medicine Aoyama ClinicNiigata-city 9502002Japan

The commented study reports the results of monotherapy using TQ-B3525,a novel phosphatidylinositol-3 kinase(PI3K)inhibitor developed in China,in patients with refractory/relapsed follicular lymphoma(r/r FL).

关键词： PI3K lymphoma treatment

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Unexpected/contrary behavior of aerosol mass concentration in response to the individual components'concentration reduction in Kitakyushu,Japan

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Journal of Environmental Sciences 2024年第1期135卷 630-639页

作者： Xi Zhang takuya Murakami Jinhe Wang Masahide Aikawa Faculty of Environmental Engineering The University of Kitakyushu1-1HibikinoWakamatsuKitakyushuFukuoka 808-0135Japan Resources and Environment Innovation Research Institute School of Municipal and Environmental EngineeringShandong Jianzhu UniversityJinan 250101China

In the suburbs of Kitakyushu,Japan,the inorganic aerosol mass concentration(IAM)was about 32.7μg/m^(3),with the aerosol pH of *** study the thermodynamics of aerosol when its individual components'concentration is reduced,sensitive tests were performed using the ISORROPIAⅡmodel,in which the seven control species—TNaCl,TNH_(4)^(+),TSO_(4)^(2-),TNO_(3)^(-),TMg^(2+),TK^(+),and TCa^(2+)—were taken into *** and inorganic aerosol pH after reducing TNaCl,TNO_(3)^(-),TMg^(2+),TK^(+),and TCa^(2+)responded linearly(0%≤concentration reduction ratio(CRR)≤100%,with the exception of 100%in TNaCl);the nonlinear variations of these two parameters could be observed by controlling TNH_(4)^(+)and TSO_(4)^(2-).Unexpected aerosol behavior occurred at 100%reduction of TNaCl,which was caused by the sudden increase of NO_(3)^(-),NH_(4)^(+),and aerosol liquid water content(ALWC);the increase of IAM was also observed after controlling TSO_(4)^(2-)(60%≤CRR≤100%)and TCa^(2+)(0%≤CRR≤100%),which was mainly related to the variation of ALWC driven by the response of CaSO_(4).Multiple regression analysis showed that ALWC was statistically and strongly related to the variations of NO_(3)^(-),Cl-,SO_(4)^(2-),HSO_(4)^(-),HNO_(3),and NH_(3)(P<0.05),with regression coefficients of 1.68,5.23,1.83,2.81,0.34,and 0.57,*** highest coefficient(5.23)was found for Cl^(-),revealing that sea salts significantly influenced particle ***,this study comprehensively investigated aerosol characteristics and inner responses for the reduction of components,which is of great significance for a better understanding of atmospheric chemistry in Kitakyushu,Japan.

关键词： Sensitive tests Reduction Gas-particle conversion process Aerosol liquid water content Sea salts

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Effects of COVID-19 on Outpatient Visitation of Japanese Parkinson’s Disease and Parkinsonism Patients Receiving Rehabilitation

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Advances in Parkinson's Disease 2022年第2期11卷 11-22页

作者： Kyohei Mikami Makoto Shiraishi Kazuki Yoshida Ken Kumai Ryoma Aoki Keisuke Shiraishi Natsumi Takahashi Tomomi Matsushima Akika Yoshimoto takuya iwamoto Tsutomu Kamo Department of Rehabilitation Noborito Neurology Clinic Kawasaki City Japan Department of Neurology St. Marianna University School of Medicine Kawasaki City Japan Department of Neurology Noborito Neurology Clinic Kawasaki City Japan

Background: Rehabilitation is effective for preventing progression of Parkinson’s disease (PD) and parkinsonism, but access to services during the COVID-19 pandemic was difficult. The Japanese already practice high levels of social distancing and personal restraint and are keenly aware of dangers related to infectious disease. We therefore presume that many patients discontinued rehabilitation due to behavioral restraint. Objectives: We investigated whether PD patients and parkinsonism patients attending outpatient rehabilitation facilities in Japan initiated rehabilitation interruptions and their associated reasons before and during the COVID-19 pandemic. Methods: Subjects were PD and parkinsonism patients attending a neurology clinic outpatient rehabilitation department in Japan before and during the first year of the COVID-19 pandemic (February 1, 2019, to January 31, 2021). Patients lost to follow-up were investigated as to how long they attended rehabilitation until interruption. We classified factors causing rehabilitation interruption into COVID-19-related factors, disease factors and social reasons. Results: Among 259 subjects (125 men, 134 women, mean age: 76.6 ± 8.5 years), 133 patients (51.4%) initiated interruption of rehabilitation therapy. Cumulative incidence of interruption events was significantly higher during than before the COVID-19 pandemic (p Conclusions: Cumulative incidence of interruption events increased in Japanese PD and parkinsonian patients attending an outpatient rehabilitation facility during the COVID-19 pandemic, primarily due to COVID-19-related factors. Patients and their families need education and guidance to facilitate continuous rehabilitation.

关键词： Parkinson’s Disease Parkinsonism COVID-19 Rehabilitation Outpatient

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Staying hungry:a roadmap to harnessing central regulators of symbiotic nitrogen fixation under fluctuating nitrogen availability

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aBIOTECH 2024年第1期5卷 107-113页

作者： Lijin Qiao Jieshun Lin takuya Suzaki Pengbo Liang State Key Laboratory of Plant Environmental Resilience College of Biological SciencesChina Agricultural UniversityBeijingChina MOA Key Laboratory of Soil Microbiology Rhizobium Research CenterChina Agricultural UniversityBeijingChina Department of Molecular Biology and Genetics Aarhus UniversityAarhusDenmark Faculty of Life and Environmental Sciences University of TsukubaTsukubaIbarakiJapan Tsukuba Plant-Innovation Research Center University of TsukubaTsukubaIbarakiJapan

Legumes have evolved specific inventions to enhance nitrogen(N)acquisition by establishing symbiotic interactions with N-fixing rhizobial *** symbiotic N fixation is energetically costly,legumes have developed sophisticated mechanisms to ensure carbon-nitrogen balance,in a variable environment,both locally and at the whole plant level,by monitoring nodule number,nodule development,and nodular nitrogenase activity,as well as controlling nodule *** of the autoregulation of nodulation and regulation of nodulation by nodule inception(NIN)and NIN-LIKE PROTEINs(NLPs)have provided great insights into the genetic mechanisms underlying the nitrateinduced regulation of root nodulation for adapting to N availability in the ***,many aspects of N-induced pleiotropic regulation remain to be fully explained,such as N-triggered senescence in mature *** et *** that this process is governed by a transcriptional network regulated by NAC-type transcription *** and dissection of these soybean nitrogenassociated NAPs(SNAPs)transcription factor-mastered networks have yielded a roadmap for exploring how legumes rewire nodule functions across a range of N levels,laying the foundation for enhancing the growth of N-deprived crops in agricultural settings.

关键词： Symbiotic nitrogen fixation N-adapted nodulation Nodule senescence NIN NLPs SNAPs

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肝细胞肝癌射频消融后的并发症

肝细胞肝癌射频消融后的并发症

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第八届全国肿瘤介入诊疗学术大会、第一届中国抗癌协会肿瘤介入学护理专业学组会议暨国家级介入诊疗继续教育学习班、肿瘤介入治疗新进展研讨会

作者：佐藤守男 takuya iwamoto Nobuyuki Kawai 汤超和歌山医科大学和歌山医科大学和歌山医科大学

射频消融术(RFA)自从2001在日本法定认可后,已经广泛应用于治疗肝细胞肝癌 (HCC)．针对 HCC 的治疗,RFA 用于肿瘤直径小于3cm 的多发肿瘤或者肿瘤直径小于5cm 的单发肿瘤情况下．RFA 治疗仪可分为 expansive needle 和 cool-tip 两型,... 详细信息

射频消融术(RFA)自从2001在日本法定认可后,已经广泛应用于治疗肝细胞肝癌 (HCC)．针对 HCC 的治疗,RFA 用于肿瘤直径小于3cm 的多发肿瘤或者肿瘤直径小于5cm 的单发肿瘤情况下．RFA 治疗仪可分为 expansive needle 和 cool-tip 两型,后者因为其穿刺孔直径较小而在日本更为人们接受．RFA 治疗后, 射频区域外多于5mm 的范围肿瘤可以得到局部控制．近期随访 HCC 肿瘤直径≦3cm 和＞ 3cm 在进行 RFA 后的复发率分别为6-21%和 8-40%．远期随访三年肝内治疗后远处转移率为33-85%．还有一些文献报道描述到了 RFA 的并发症问题和技术问题．本篇主要介绍 RFA 的并发症问题．

关键词：肝细胞肝癌 RFA HCC 射频消融

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Anti-EGFR antibody monotherapy for colorectal cancer with severe hyperbilirubinemia: A case report

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World Journal of Gastrointestinal Oncology 2024年第2期16卷 557-562页

作者： Toshiaki Tsurui Yuya Hirasawa Yutaro Kubota Kiyoshi Yoshimura takuya Tsunoda Department of Medical Oncology Showa UniversityTokyo 1428555Japan Department of Clinical Immuno Oncology Clinical Research Institute of Clinical Pharmacology and TherapeuticsShowa UniversityTokyo 1578577Japan

BACKGROUND Hyperbilirubinemia with hepatic metastases is a common complication and a poor prognostic factor for colorectal cancer(CRC).Effective drainage is often im-possible before initiating systemic chemotherapy,owing to the liver’s diffuse metastatic ***,an appropriate chemotherapeutic approach for the treatment of hyperbilirubinemia is currently *** SUMMARY The patient,a man in his 50s,presented with progressive fatigue and severe *** tomography revealed multiple hepatic masses with thick-ened walls in the sigmoid colon,which was pathologically confirmed as a well-differentiated *** RAS or BRAF mutations were *** Eastern Cooperative Oncology Group(ECOG)performance status(PS)score was *** drainage was impossible due to the absence of a dilated bile duct,and panitumumab monotherapy was promptly ***,the bilirubin level decreased and then normalized,and the patient’s PS improved to zero ECOG score after four cycles of therapy without significant adverse *** Anti-EGFR antibody monotherapy is a safe and effective treatment for RAS wild-type CRC and hepatic metastases with severe hyperbilirubinemia.

关键词： Colorectal neoplasms Panitumumab Chemotherapy Hyperbilirubinemia Jaundice Case report

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High-temperature corrosion of sintered RE_(2)Si_(2)O_(7)(RE=Yb and Ho)environmental barrier coating materials by volcanic ash

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International Journal of Minerals,Metallurgy and Materials 2024年第7期31卷 1628-1638页

作者： Ayahisa Okawa Son Thanh Nguyen Tadachika Nakayama Thi-Mai-Dung Do Hisayuki Suematsu Shu Yin takuya Hasegawa Tsuneo Suzuki Takashi Goto Koichi Niihara Institute of Multidisciplinary Research for Advanced Materials Tohoku UniversitySendai 980-8577Japan Department of Creative Engineering National Institute of TechnologyKushiro 084-0916Japan Extreme Energy-Density Research Institute Nagaoka University of TechnologyNagaoka 940-2188Japan Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendai 980-8577Japan

Rare-earth silicates are promising environmental barrier coatings(EBCs)that can protect SiC_(f)/Si C_(m)substrates in next-genera tion gas turbine ***,RE_(2)Si_(2)O_(7)(RE=Yb and Ho)shows potential as an EBC due to its coefficient of thermal expansion(CTE)compatible with substrates and high resistance to water vapor *** target operating temperature for next-generation tur bine blades is 1400°*** is inevitable during adhesion to molten volcanic ash,and thus,understanding the corrosion behavior o the material is crucial to its *** study investigates the high-temperature corrosion behavior of sintered RE_(2)Si_(2)O_(7)(RE=Yb and Ho).Samples were prepared using a solid-state reaction and hot-press *** were then exposed to volcanic ash at 1400°C for 224,and 48 *** 48 h of exposure,volcanic ash did not react with Yb_(2)Si_(2)O_(7)but penetrated its interior,causing *** Ho_(2)Si_(2)O_(7)was partially dissolved in the molten volcanic ash,forming a reaction zone that prevented volcanic ash melts from penetrating the *** increasing heat treatment time,the reaction zone expanded,and the thickness of the acicular apatite grains increased The Ca:Si ratios in the residual volcanic ash were mostly unchanged for Yb_(2)Si_(2)O_(7)but decreased considerably over time for Ho_(2)Si_(2)O_(7).Th Ca in volcanic ash was consumed and formed apatite,indicating that RE^(3+)ions with large ionic radii(Ho>Yb)easily precipitated apatit from the volcanic ash.

关键词： environmental barrier coating volcanic ash rare-earth disilicate corrosion

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