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Umeda T, Okamoto M, Kosugi R, Harada S, Arai R, Sato Y, Makino T, Ohshima T. (Invited) SiC MOS Interface States: Difference between Si Face and C Face. ACTA ACUST UNITED AC 2013. [DOI: 10.1149/05807.0055ecst] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Akioka K, Masuda K, Harada S, Nakamura T, Okugawa K, Nakano K, Osaka Y, Tsuchiya K, Sako H. Acute Renal Failure Caused by Hyperuremic Acidemia in ABO-Incompatible Kidney Transplant Maintained With Cyclosporine and High-Dose Mizoribine: A Case Report. Transplant Proc 2013; 45:2815-8. [DOI: 10.1016/j.transproceed.2013.03.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 03/04/2013] [Accepted: 03/21/2013] [Indexed: 11/17/2022]
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53
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Takeno H, Yasaka Y, Ishikawa M, Nakashima Y, Kume M, Sotani N, Munakata Y, Harada S, Akashi D, Kawaguchi T, Miyazaki S, Ichimura K. Recent Results in Research on Direct Energy Conversion for a Fusion System. FUSION SCIENCE AND TECHNOLOGY 2013. [DOI: 10.13182/fst13-a16888] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Miyazaki S, Fujita K, Harada S, Takeno H, Yasaka Y, Ichimura K, Nakashima Y. Studies on Characteristics of a Bias-Type Traveling Wave Direct Energy Converter Installed on GAMMA 10 Tandem Mirror. FUSION SCIENCE AND TECHNOLOGY 2013. [DOI: 10.13182/fst13-a16936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Balogun EO, Inaoka DK, Shiba T, Kido Y, Nara T, Aoki T, Honma T, Tanaka A, Inoue M, Matsuoka S, Michels PA, Harada S, Kita K. Biochemical characterization of highly active Trypanosoma brucei gambiense glycerol kinase, a promising drug target. J Biochem 2013; 154:77-84. [DOI: 10.1093/jb/mvt037] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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56
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Hatta T, Takeda K, Shiotsu Y, Sugishita C, Adachi T, Kimura T, Sonomura K, Kusaba T, Kishimioto N, Narumiya H, Tanda S, Tamagaki K, Yamada K, Kameyama H, Kido H, Harada S, Bito Y, Moriguchi J, Morimoto S, Okigaki M, Itoh H, Mori Y, Nakata T, Maki K, Sasaki S, Sawada K, Matsubara H. Switching to an L/N-type calcium channel blocker shows renoprotective effects in patients with chronic kidney disease: the Kyoto Cilnidipine Study. J Int Med Res 2013; 40:1417-28. [PMID: 22971493 DOI: 10.1177/147323001204000420] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVE This open-label, randomized controlled trial investigated the effects of cilnidipine, an L/N-type calcium channel blocker (CCB), in patients with chronic kidney disease (CKD). METHODS Sixty patients with CKD and well-controlled hypertension being treated with a renin- angiotensin system (RAS) inhibitor and an L-type CCB (L-CCB) were randomly assigned either to switch from the L-CCB to cilnidipine after a 4-week observation period or to continue with L-CCB treatment. Blood pressure, heart rate and renal function were monitored for 12 months. Data were available for analysis from 50 patients: 24 from the cilnidipine group and 26 from the L-CCB group. RESULTS Blood pressure was well controlled in both groups. After 12 months, proteinuria and heart rate were significantly decreased in the cilnidipine group, but proteinuria increased and heart rate remained unchanged in the L-CCB group. There was a significant positive correlation between the percentage changes in proteinuria and heart rate. CONCLUSIONS Cilnidipine has antihypertensive effects equivalent to those of L-CCBs. In patients with CKD, proteinuria can be decreased by switching from an L-CCB to cilnidipine, thereby improving renal function.
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Harada S, Ehara S, Ishii K, Yamazaki H, Matsuyama S, Sato T, Kamiya T, Sera K. Imaging of Premetastatic Sites and Prophylaxis of Metastasis Using Radiosensitive Nanocapsules via Radiation Therapy. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1844] [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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58
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Yonemura Y, Endou Y, Nojima M, Kawamura T, Fujita H, Kaji M, Ajisaka H, Bandou E, Sasaki T, Yamaguchi T, Harada S, Yamamoto H. A possible role of cytokines in the formation of peritoneal dissemination. Int J Oncol 2012; 11:349-58. [PMID: 21528221 DOI: 10.3892/ijo.11.2.349] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The earliest event in the formation of peritoneal dissemination is considered through the process of the attachment of intraperitoneal free cancer cells to the submesothelial basement membrane, exposed after contraction of mesothelial cells. We studied the mechanisms of the contraction of mesothelial cells using a. highly metastatic sell line (MKN-45-P) to the peritoneum. Four hours after intraperitoneal inoculation of MKN-45-P, mouse mesothelial cells began to contract, and submesothelial basement membrane was widely exposed after 24 h. The same changes developed four hours after i.p. injection of IL-6, TNF-alpha and IL-8, and were most prominently observed in mice treated with IL-8. However, no significant changes were observed after treatment of HGF, EGF and TGF-beta. Furthermore, IL-1 alpha, IL-6, IL-8, TNF and EGF increased the number of intercellular gaps of a human mesothelial cell monolayer, which was incubated on Matrigel coated dishes. Normal mesothelial cells form a contiguous monolayer of closely apposed polygonal cells, each of which had prominent and peripheral bands of F-actin. After incubation with IL-1 alpha, IL-6, IL-8, TNF and EGF, peripheral actin bands became indistinct and the central stress fibers became numerous. However, no significant changes were found in mesothelial cells, which were treated with TGF-beta and HGF. In addition, the number of attached MKN-45-P cells on a mesothelial cell monolayer after treatment of IL-1 alpha (0.1-1 ng/ml), IL-8 (10-100 ng/ml), and TNF-alpha (100 ng/ml) was significantly larger than that of control and TGF-beta significantly reduced the number of attached cells. Concentration of IL-8 in the serum-free medium of MKN-45-P cells was high (3.4 ng/ml), but IL-1 alpha, IL-6, TNF-alpha, TGF-beta, EGF and HGF could not be detected. None of these cytokines were detected in the conditioning medium of human mesothelial cells. Based on these results, mesothelial cell contraction may be mediated by IL-1 alpha, IL-6, IL-8, TNF-alpha, and EGF, and these cytokines may be produced from cancer cells and/or intraperitoneal inflammatory cells. In contrast, TGF-beta have an inhibitory effect on the mesothelial cell contraction and attachment of cancer cells to a mesothelial monolayer. The attachment of free cancer cells on the peritoneum may be controlled with these cytokines.
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Sakairi M, Kogami M, Torii M, Kuno Y, Ohsawa Y, Makino M, Kataoka D, Okamoto R, Miyazawa T, Inoue M, Takahashi N, Harada S, Watanabe N. Synthesis and Biological Evaluation of a 6-Aminofuro[3,2–c]pyridin-3(2H)-one Series of GPR 119 Agonists. ACTA ACUST UNITED AC 2012; 62:537-44. [DOI: 10.1055/s-0032-1323760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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60
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Shimizu H, Osanai A, Sakamoto K, Inaoka DK, Shiba T, Harada S, Kita K. Crystal structure of mitochondrial quinol-fumarate reductase from the parasitic nematode Ascaris suum. J Biochem 2012; 151:589-92. [DOI: 10.1093/jb/mvs051] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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61
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Takeno H, Kume M, Harada S, Yasaka Y, Ichimura K, Nakashima Y. Analytical Experiments Using a Bias-Type Traveling Wave Direct Energy Converter Simulator Installed on Gamma 10 Tandem Mirror. FUSION SCIENCE AND TECHNOLOGY 2012. [DOI: 10.13182/fst12-a13408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Harada S, Mitsui T, Sato K. Particle-like and fluid-like settling of a stratified suspension. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2012; 35:1. [PMID: 22228495 DOI: 10.1140/epje/i2012-12001-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2011] [Revised: 09/30/2011] [Accepted: 12/14/2011] [Indexed: 05/31/2023]
Abstract
The gravitational settling of inhomogeneously suspended particles in a fluid has been investigated. Of particular interest is whether collective or individual motion of particles is dominant during their settlings, i.e., whether the particles settle as a continuous suspension or they settle individually relative to the surrounding fluid. We observed the settling of a stratified suspension which has the lower and upper concentration interfaces in a quasi-two-dimensional vessel. In some cases, the suspension behaves perfectly as a continuous fluid and the motion of the constituent particle is subject to bulk flow caused by the interfacial instability. In other cases, the particle behaves individually relative to the surrounding fluid. The existence of a concentration interface plays a significant role in these extreme behaviors of suspension. The transition from the collective to individual behaviors can be predicted quantitatively by a parameter which expresses the border resolution of the concentration interface.
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Takeno H, Harada S, Yasaka Y. Studies on Modulation Process of Traveling Wave Direct Energy Converter for Advanced Fusion. FUSION SCIENCE AND TECHNOLOGY 2012. [DOI: 10.13182/fst12-a13409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Harada S, Ehara S, Ishii K, Matsuyama S, Sato T, Kamiya T, Sera K. Imaging And Treatment Of Incipient Metastasis Using Radiosensitive Nanocapsules Via 2 Radiotherapy Sessions. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1227] [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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65
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Takeshita M, Tani T, Harada S, Hayashi H, Itoh H, Tajima H, Ohnishi I, Takamura H, Fushida S, Kayahara M. Role of transcription factors in small intestinal ischemia-reperfusion injury and tolerance induced by ischemic preconditioning. Transplant Proc 2011; 42:3406-13. [PMID: 21094787 DOI: 10.1016/j.transproceed.2010.06.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2009] [Revised: 05/11/2010] [Accepted: 06/10/2010] [Indexed: 12/21/2022]
Abstract
BACKGROUND Small intestinal ischemia-reperfusion (I/R) injury, a clinically important condition, induces severe organ damage. Ischemic preconditioning (IPC) produces tolerance to long-term I/R by inducing a short-term I/R. Herein, we have examined the reduction in the extent of injury by IPC. METHODS Small intestinal I/R injury was induced in rats by clamping the superior mesenteric artery (SMA) for 30 minutes followed by reperfusion for various 30 minutes. The IPC + I/R group underwent a short-term I/R (IPC) prior to long-term I/R. Nuclear factor-κB (NF-κB) activity was analyzed by an electrophoretic mobility shift assay and cytokine mRNA levels, by reverse transcription-polymerase chain reaction. Apoptosis-related genes were analyzed by Western blotting and immunohistochemistry, and apoptotic cells, by TUNEL staining. RESULTS The animals were subjected to 30 minutes of ischemia followed by 30 minutes of reperfusion. NF-κB activity increased in the I/R group and decreased in the IPC + I/R group. The IPC + I/R group showed decreased cytokine in mRNA levels. Expression of the proapoptotic gene caspase-3 was increased in the I/R and decreased in the IPC + I/R group. Expression of the antiapoptotic gene Bcl-xL was increased in the IPC + I/R group. The number of apoptotic cells was increased in the I/R and decreased in the IPC + I/R group. CONCLUSION Small intestinal I/R injury was reduced by IPC produced by clamping the SMA; thus, IPC may have potential clinical applications in the future.
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Gobara H, Hiraki T, Mimura H, Shibamoto K, Soda Y, Uka M, Masaoka Y, Harada S, Ihara H, Yamamoto T, Kanazawa S. Abstract No. 126: Change in renal function after percutaneous radiofrequency ablation of renal tumor: Analyses of risk factors. J Vasc Interv Radiol 2011. [DOI: 10.1016/j.jvir.2011.01.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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67
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Otomo R, Harada S. End Effect on Permeability of Loose Particulate Bed Having Different Internal Structures. PARTICULATE SCIENCE AND TECHNOLOGY 2011. [DOI: 10.1080/02726351.2010.488715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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68
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Harada S, Ehara S, Ishii K, Yamazaki H, Matsuyama N, Sato T, Kamiya T, Sera K. Imaging of Metastatic Potential and Inhibition of Metastasis using Two Types of Nanocapsules In Vivo. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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69
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Taniguchi K, Katagiri K, Kashiwagi H, Harada S, Sugimoto Y, Shimizu Y, Arakawa H, Ito T, Yamazaki M, Watanabe T, Kato A, Hoshino E, Takahashi T, Esaki T, Suzuki M, Takeda S, Ichikawa F, Harada A, Sekiguchi N, Ishigai M, Kawata H, Yoneya T, Onuma E, Sudoh M, Aoki Y. A novel nonsecosteroidal VDR agonist (CH5036249) exhibits efficacy in a spontaneous benign prostatic hyperplasia beagle model. J Steroid Biochem Mol Biol 2010; 121:204-7. [PMID: 20304062 DOI: 10.1016/j.jsbmb.2010.03.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2009] [Revised: 03/09/2010] [Accepted: 03/11/2010] [Indexed: 11/17/2022]
Abstract
To date, there have been no reports showing the efficacy of nonsecosteroidal vitamin D receptor (VDR) agonists in a benign prostatic hyperplasia (BPH) animal model. To examine the efficacy of CH5036249, a novel nonsecosteroidal VDR agonist, we orally administered the compound at 0.03 microg/kg to a beagle model with spontaneous BPH. Prostate volume was checked by rectal ultrasonic probe periodically during 11 months of administration and the prostate tissues histologically examined. CH5036249 inhibited prostate growth in two out of three dogs compared with vehicle-treated dogs. In the prostate specimens, substantial atrophy of the epithelium was observed in all dogs administered CH5036249. At the dose given, serum calcium levels slightly increased in the CH5036249-treated dogs but stayed within a normal range. We next examined the cell growth inhibition of CH5036249 using human prostate stromal cells and found the cell growth inhibitory activity of CH5036249 to be comparable to that of 1alpha,25(OH)2D3. The bioavailability from oral administration in rats was 95.1% with a t1/2 of 17.6 h. Both micro-AMES and micronucleus tests were negative. Although the results are still preliminary, we consider the novel nonsecosteroidal VDR agonist CH5036249 to be a possible new drug candidate for the treatment of BPH in humans.
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Jenab-Wolcott J, Yao Y, Yan W, Schulte S, Harada S, Brensinger C, Giantonio BJ, Rustgi A, Sepulveda A. Use of a four gene panel of epigenetic markers to classify serrated colonic adenomas with CpG island methylator phenotype. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.3600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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71
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Takamasu T, Miyagawa M, Wada M, Harada S, Hiroki K, Kurihara K. Clinical Features of Food Allergic Children with Malnutrition. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Nishimura K, Nakamura Y, Harada S, Saiki M, Marumoto A, Kanaoka Y, Nishimura M. [Vacuum-assisted closure therapy for the treatment of sternal wound infection after cardiac surgery]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 2009; 62:1053-1055. [PMID: 19894569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Sternal wound infection is still one of the critical and challenging complications after cardiac surgery. Vacuum-assisted closure (VAC) therapy is a unique and simple system that helps promote wound healing. We report 3 cases with the sternal wound infection after cardiac surgery, in which VAC therapy was applied between January, 2005 and April, 2007. Two of them had good response to VAC therapy and had their wound healed after 3 and 5 weeks, respectively. However, the remaining case, in which bilateral internal thoracic artery had been taken down for coronary artery bypass grafting (CABG) and osteomyelitis of the sternum was not well controlled, did not respond to VAC therapy. Our results suggested that VAC might facilitate wound healing of the patients with sternal wound infection only after abscess was drained and opened, while it might not be useful for the patents with osteomyelitis.
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Nishimura K, Kanaoka Y, Ishiguro S, Harada S, Shiraya S, Fujiwara Y, Nakamura Y, Kamihira S, Nishimura M. Vacuum-assisted closure for bilateral severe ischemic foot after revascularization: a case report. INT ANGIOL 2009; 28:340-343. [PMID: 19648880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Vacuum-assisted closure (VAC) therapy is a unique system that helps promote wound healing. We report a case of severe ischemic foot in which VAC therapy markedly improved wound healing. A 73-year-old man underwent left axillopopliteal bypass and left 3rd, 4th , and 5th digital amputations for gangrene. Although his amputation stumps were complicated with methicillin-resistant Staphylococcus aureus (MRSA) infection, the stumps were successfully healed by VAC. He also had gangrene in his right 1st toe, which could not healed by VAC alone, and we performed right femoropopliteal bypass and right 1st digital amputation. The stump with MRSA infection was also successfully healed by VAC. Histopathologic examination revealed a lot of microvessels in the increased granulation tissue.
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Mogi T, Kawakami T, Arai H, Igarashi Y, Matsushita K, Mori M, Shiomi K, Omura S, Harada S, Kita K. Siccanin Rediscovered as a Species-Selective Succinate Dehydrogenase Inhibitor. J Biochem 2009; 146:383-7. [DOI: 10.1093/jb/mvp085] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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75
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Singh AP, Harada S, Mishina Y. Downstream genes of Sox8 that would affect adult male fertility. Sex Dev 2009; 3:16-25. [PMID: 19339814 DOI: 10.1159/000200078] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2008] [Accepted: 10/22/2008] [Indexed: 11/19/2022] Open
Abstract
Sertoli cells provide nutritional and physical support to germ cells during spermatogenesis. Sox8 encodes a high mobility group transcription factor closely related to Sox9 and Sox10. Sertoli cells produceSOX8 protein, and its elimination results in an age-dependent deregulation of spermatogenesis resulting in male infertility. This suggests that Sox8 is a critical regulator of Sertoli cell function for the maintenance of male fertility beyond the first wave of spermatogenesis. To better understand the roles of Sox8 in testicular development and maintenance of male fertility, we have performed a detailed analysis to explore its downstream genes. We have used mRNA expression profiling to identify affected genes in Sertoli cells in the mutant testes of 2-month-old mice. Expression profiling of the heterozygous and homozygous Sox8 mutant testes indicates alterations in several important spermatogenesis and blood-testis barrier genes, providing insight into the molecular basis of the defects in Sox8(-/-) testes beyond the first wave of spermatogenesis.
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