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Hayashi N, Mizuno T, Takada Y, Murai T. SU-E-T-433: Field-In-Field Irradiation for Breast Cancer with VERO-4DRT System: A Feasibility Study. Med Phys 2015. [DOI: 10.1118/1.4924794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Nagata Y, Kohno R, Takada Y, Hotta K, Yamaguchi H, Akimoto T. SU-E-T-263: Development of Dose Monitor Unit Calculation Using Clarkson Integration for Proton Beam Therapy Using Beam-Wobbling System. Med Phys 2015. [DOI: 10.1118/1.4924625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ichida K, Matsuo H, Nakayama A, Sakiyama M, Chiba T, Shimizu S, Nakashima H, Nakamura T, Takada Y, Takada T, Nakaoka H, Wakai K, Sakurai Y, Shimizu T, Suzuki H, Shinomiya N. SAT0324 ABCG2 Dysfunction Leads to Renal Urate Underexcretion Type Hyperuricemia in Addition to Extra-Renal Urate Underexcretion Type Hyperuricemia. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Mizutani S, Takada Y, Kohno R, Hotta K, Akimoto T. SU-E-T-805: Verification of the Simplified Monte Carlo Method for Simulation in An Inhomogeneous Phantom. Med Phys 2015. [DOI: 10.1118/1.4925169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Nagase M, Sakakibara K, Honda N, Takada Y, Takada A. Does measurement of urinary rare proteins provide diagnostic significance in glomerular diseases? CONTRIBUTIONS TO NEPHROLOGY 2015; 68:141-8. [PMID: 3069315 DOI: 10.1159/000416505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Abstract
Fifteen patients with pityriasis lichenoides chronica (parapsoriasis guttata) were treated with sunlight irradiation during the summer months at seaside resorts under the supervision of the authors. Complete clearing occurred in 1 of the patients, almost complete clearing in 8, definte improvement in 4, temporary clearing in 2. All patients responded beneficially and no worsening was noted in these 15 cases. In an additional six cases who were instructed to expose themselves to sunlight similar results were obtained.
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Hori M, Someya M, Nakata K, Kitagawa M, Hasegawa T, Tsuchiya T, Gocho T, Fukushima Y, Takada Y, Sakata K. PO-1107 Comparative analysis of VMAT plans for prostate cancer with different MLCs, Elekta Agility and MLCi2. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41099-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Odawara S, Doi H, Tsujimura T, Shikata T, Suzuki H, Kosaka K, Inoue H, Tanooka M, Takada Y, Niwa Y, Fujiwara M, Kamikonya N, Hirota S. Polaprezinc Protects Intestinal Epithelium From Radiation-Induced Damage in Mice. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Komiya T, Sato K, Shioya H, Inagaki Y, Hagiya H, Kozaki R, Imai M, Takada Y, Maeda T, Kurata H, Kurono M, Suzuki R, Otsuki K, Habashita H, Nakade S. Efficacy and immunomodulatory actions of ONO-4641, a novel selective agonist for sphingosine 1-phosphate receptors 1 and 5, in preclinical models of multiple sclerosis. Clin Exp Immunol 2013. [PMID: 23199323 DOI: 10.1111/j.1365-2249.2012.04669.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
ONO-4641 is a next-generation sphingosine 1-phosphate (S1P) receptor agonist selective for S1P receptors 1 and 5. The objective of the study was to characterize the immunomodulatory effects of ONO-4641 using preclinical data. ONO-4641 was tested in both in-vitro pharmacological studies as well as in-vivo models of transient or relapsing-remitting experimental autoimmune encephalomyelitis (EAE). In vitro, ONO-4641 showed highly potent agonistic activities versus S1P receptors 1 and 5 [half maximal effective concentration (EC(50) ) values of 0·0273 and 0·334 nM, respectively], and had profound S1P receptor 1 down-regulating effects on the cell membrane. ONO-4641 decreased peripheral blood lymphocyte counts in rats by inhibiting lymphocyte egress from secondary lymphoid tissues. In a rat experimental autoimmune encephalomyelitis (EAE) model, ONO-4641 suppressed the onset of disease and inhibited lymphocyte infiltration into the spinal cord in a dose-dependent manner at doses of 0·03 and 0·1 mg/kg. Furthermore, ONO-4641 prevented relapse of disease in a non-obese diabetic mouse model of relapsing-remitting EAE. These observations suggest that ONO-4641 may provide therapeutic benefits in the treatment of multiple sclerosis.
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Takada Y, Nagano H, Kawaguchi Y, Suzuki Y, Nakajima E, Sugiyama M, Sugaya M, Hashimoto Y, Sakairi M. Evaluation of false alarm rates of a walkthrough detection portal designed for detecting triacetone triperoxide (tatp) vapour from field test results and receiver operating characteristic (roc) curves. ACTA ACUST UNITED AC 2012. [DOI: 10.2495/safe-v2-n3-256-264] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fujiwara M, Kamikonya N, Tanooka M, Miura H, Doi H, Takada Y, Terada T, Uwa N, Sagawa K, Hirota S. Hypothyroidism After Radiation Therapy for Head-and-Neck Cancer: The Retrospective DVH Analysis of 75 Patients -- Volume of Thyroid Gland Spared From Doses Can Be a New Dose Constraint for Treatment Planning? Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Miki Y, Hosono M, Masuoka Y, Ogino R, tsutsumi S, Maekado T, Takada Y, Shimatani Y, Miki Y. Impact of Chemoradiation Therapy Using Docetaxel for Treatment of Scalp Angiosarcoma. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Iguchi H, Morita R, Yasuda D, Takayanagi R, Ikeda Y, Takada Y, Shimazoe T, Nawata H, Kono A. Alterations of the p53 tumor-suppressor gene and ki-ras oncogene in human pancreatic cancer-derived cell-lines with different metastatic potential. Oncol Rep 2012; 1:1223-7. [PMID: 21607521 DOI: 10.3892/or.1.6.1223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Alterations of the p53 and Ki-ras genes were examined in 12 human pancreatic cancer-derived cell lines with different metastatic potential. Point mutations of the Ki-ras gene at codon 12 were found in 10 out of 12 cell lines (83%), while abnormalities of the p53 gene were identified in 8 out of 12 cell lines (67%) which included point mutations (n=7) and one base deletion (n=1). The comparison between alterations of the p53 and Ki-ras genes showed that all the 12 cell lines revealed alterations of both genes or one of these genes regardless of the metastatic potential. Further, same alterations of the Ki-ras gene or p53 gene were noted among the cell lines with increased metastatic potential and their parental cell lines. These findings suggest that alterations of the p53 gene, like the Ki-ras gene is a frequent event in pancreatic cancer, and could contribute cooperatively in the oncogenic steps of pancreatic cancer. It is also suggested that the genetic changes of the p53 and Ki-ras genes are not substantially associated with the metastatic potential in pancreatic cancer.
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Tansho R, Kohno R, Takada Y, Hotta K, Hara Y, Nagafuchi K, Suzuki Y, Akimoto T. SU-E-T-488: Dose Calculation Model Using the Simplified Monte Carlo Method with an Initial Beam Model Adapted to a Beam-Wobbling System. Med Phys 2012; 39:3817. [DOI: 10.1118/1.4735577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Uchida Y, Tachibana H, Takada Y, Kashihara K, Yamashita T. SU-E-J-165: Development of a Low-Cost and Clinically Available Patient Intrafraction Motion Monitoring System. Med Phys 2012; 39:3690. [DOI: 10.1118/1.4735004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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41
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Tanooka M, Miura E, Inoue H, Doi H, Takada Y, Fujiwara M, Ishimaru F, Sakamoto K, Kamikonya N, Hirota S. EP-1535 CARBON-FIBER COUCH MODELING OPTIMIZATION FOR MONACO VMAT PLANNING AND DELIVERY. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71868-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Miura H, Tanooka M, Fujiwara M, Doi H, Inoue H, Takada Y, Kamikonya N, Hirota S. EP-1519 COMPARISON OF FULL-ARC AND HALF-ARC VOLUMETRIC MODULATED ARC THERAPY (VMAT) FOR MAXILLARY CANCER. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71852-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Doi H, Ishimaru F, Tanooka M, Miura H, Inoue H, Takada Y, Fujiwara M, Yamamoto S, Kamikonya N, Hirota S. EP-1104 IS OBESITY CORRELATED WITH GASTROINTESTINAL TOXICITY INDUCED BY RADIOTHERAPY FOR PROSTATE CANCER? Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71437-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Matsuo H, Takada T, Ichida K, Nakamura T, Nakayama A, Takada Y, Okada C, Sakurai Y, Hosoya T, Kanai Y, Suzuki H, Shinomiya N. Identification of ABCG2 dysfunction as a major factor contributing to gout. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2012; 30:1098-104. [PMID: 22132963 DOI: 10.1080/15257770.2011.627902] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The ATP-binding cassette, subfamily G, member 2 gene ABCG2/BCRP locates in a gout-susceptibility locus (MIM 138900) on chromosome 4q. Recent genome-wide association studies also showed that the ABCG2 gene relates to serum uric acid levels and gout. Since ABCG2 is also known as a transporter of nucleotide analogs that are structurally similar to urate, and is an exporter that has common polymorphic reduced functionality variants, ABCG2 could be a urate secretion transporter and a gene causing gout. To find candidate mutations in ABCG2, we performed a mutation analysis of the ABCG2 gene in 90 Japanese patients with hyperuricemia and found six non-synonymous mutations. Among the variants, ATP-dependent urate transport was reduced or eliminated in five variants, and two out of the five variants (Q126X and Q141K) were frequently detected in patients. Haplotype frequency analysis revealed that there is no simultaneous presence of Q126X and Q141K in one haplotype. As Q126X and Q141K are a nonfunctional and half-functional haplotype, respectively, their genotype combinations are divided into four estimated functional groups. The association study with 161 male gout patients and 865 male controls showed that all of those who had dysfunctional ABCG2 had an increased risk of gout, and that a remarkable risk was observed in those with ≤1/4 function (OR, 25.8; 95% CI, 10.3-64.6; p = 3.39 × 10(-21)). In 2,150 Japanese individuals, the frequency of those with dysfunctional ABCG2 was more than 50%. Our function-based clinicogenetic analysis identified the combinations of dysfunctional variants of ABCG2 as a major contributing factor in Japanese patients with gout.
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Hyodo T, Kumano S, Kushihata F, Okada M, Hirata M, Tsuda T, Takada Y, Mochizuki T, Murakami T. CT and MR cholangiography: advantages and pitfalls in perioperative evaluation of biliary tree. Br J Radiol 2012; 85:887-96. [PMID: 22422383 DOI: 10.1259/bjr/21209407] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Recent developments in imaging technology have enabled CT and MR cholangiopancreatography (MRCP) to provide minimally invasive alternatives to endoscopic retrograde cholangiopancreatography for the pre- and post-operative assessment of biliary disease. This article describes anatomical variants of the biliary tree with surgical significance, followed by comparison of CT and MR cholangiographies. Drip infusion cholangiography with CT (DIC-CT) enables high-resolution three-dimensional anatomical representation of very small bile ducts (e.g. aberrant branches, the caudate branch and the cystic duct), which are potential causes of surgical complications. The disadvantages of DIC-CT include the possibility of adverse reactions to biliary contrast media and insufficient depiction of bile ducts caused by liver dysfunction or obstructive jaundice. Conventional MRCP is a standard, non-invasive method for evaluating the biliary tree. MRCP provides useful information, especially regarding the extrahepatic bile ducts and dilated intrahepatic bile ducts. Gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid-enhanced MRCP may facilitate the evaluation of biliary structure and excretory function. Understanding the characteristics of each type of cholangiography is important to ensure sufficient perioperative evaluation of the biliary system.
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Ueda Y, Marusawa H, Kaido T, Ogura Y, Oike F, Mori A, Ogawa K, Yoshizawa A, Hatano E, Miyagawa-Hayashino A, Haga H, Egawa H, Takada Y, Uemoto S, Chiba T. Effect of maintenance therapy with low-dose peginterferon for recurrent hepatitis C after living donor liver transplantation. J Viral Hepat 2012; 19:32-8. [PMID: 21129128 DOI: 10.1111/j.1365-2893.2010.01398.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Approximately 30% of patients who have recurrent hepatitis C after liver transplantation achieve sustained virological response (SVR) by taking a combination therapy of pegylated interferon and ribavirin. For the remaining non-SVR patients, an effective management treatment has not yet been established. In this study, efficacy of long-term peginterferon maintenance therapy for non-SVR patients was evaluated. Forty patients who had previously received the combination therapy for hepatitis C after living donor liver transplantation were classified into one of the following three groups: the SVR group (n = 11); the non-SVR-IFN group (n =17), which received low-dose peginterferon maintenance therapy for non-SVR patients; and the non-SVR-Withdrawal group (n = 12), which discontinued the interferon treatment. We then compared histological changes among these three groups after 2 or more years follow-up. Activity grade of liver histology improved or remained stable in patients in the SVR and non-SVR-IFN groups, but deteriorated in half of the patients in the non-SVR-Withdrawal group. Fibrosis improved or remained stable in 10 of 11 SVR patients and in 13 of 17 non-SVR-IFN patients, but deteriorated in all non-SVR-Withdrawal patients. Mean changes in fibrosis stage between pretreatment and final liver biopsy were -0.18, +0.06 and +2.2 in the SVR, non-SVR-IFN and non-SVR-Withdrawal groups, respectively. Fibrosis stage deteriorated to F3 or F4 significantly more rapidly in the non-SVR-Withdrawal group than in the other two groups. In conclusion, continuing long-term maintenance therapy with peginterferon prevented histological progression of hepatitis C in patients who had undergone living donor liver transplantation.
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Inoue H, Tanooka M, Doi H, Miura E, Takada Y, Fujiwara M, Yasumasa K, Sakamoto K, Kamikonya N, Hirota S. Impact of Choice of Algorithm and Clip box Position on the Automatic Image Registration for Prostate Cancer Treatment. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Inoue H, Tanooka M, Miura E, Doi H, Takada Y, Fujiwara M, Yasumasa K, Sakamoto K, Kamikonya N, Hirota S. 2016 POSTER Impact of Choice of Algorithm and Clip Box Position on the Automatic Image Registration for Prostate Cancer. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70974-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Doi H, Kamikonya N, Takada Y, Fujiwara M, Miura H, Inoue H, Tanooka M, Nakamura T, Tsujimura T, Hirota S. 2033 POSTER Radiation-induced Rectal Toxicity in Rats on Low-dose Aspirin Therapy. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70991-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Doi H, Kamikonya N, Takada Y, Fujiwara M, Miura H, Inoue H, Tanooka M, Shikata T, Tsujimura T, Hirota S. 2032 POSTER Radiation-induced Microangiopathy in the Rectum Using an Animal Experimental Model. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70990-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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