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Shimizu S, Imai S, Ishikawa KB, Ikeda S, Fushimi K. The Impact of Modifications of the Formula for Generic Drug Prescription Rate on the Switch To New Brand-Name Drugs With Similar Therapeutic Uses. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A499. [PMID: 27201508 DOI: 10.1016/j.jval.2014.08.1496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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152
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Fukuda H, Ikeda S, Shiroiwa T, Igarashi A, Fukuda T. Medical Expenditures Associated With Type 2 Diabetes Mellitus in Japan: A Large Claims Database Study. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A341. [PMID: 27200628 DOI: 10.1016/j.jval.2014.08.678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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153
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Millier A, Aballea S, Toumi M, Onishi Y, Ikeda S. Comparison of Economic Evaluation Guidelines Between Japan and Other Asian Countries. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A798. [PMID: 27202996 DOI: 10.1016/j.jval.2014.08.479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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154
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Termeh Yousefi A, Bagheri S, Shinji K, Rusop Mahmood M, Ikeda S. Highly oriented vertically aligned carbon nanotubes via chemical vapour deposition for key potential application in CNT ropes. ACTA ACUST UNITED AC 2014. [DOI: 10.1179/1433075x14y.0000000246] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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155
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Hattori F, Kiatsurayanon C, Okumura K, Ogawa H, Ikeda S, Okamoto K, Niyonsaba F. The antimicrobial protein S100A7/psoriasin enhances the expression of keratinocyte differentiation markers and strengthens the skin's tight junction barrier. Br J Dermatol 2014; 171:742-53. [PMID: 24842328 DOI: 10.1111/bjd.13125] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/13/2014] [Indexed: 12/28/2022]
Abstract
BACKGROUND S100A7/psoriasin is a member of the S100 protein family and is encoded in the epidermal differentiation complex, which contains genes for markers of epidermal differentiation. S100A7/psoriasin is overexpressed in hyperproliferative skin diseases, where it is believed not only to exhibit antimicrobial functions, but also to induce immunomodulatory activities, including chemotaxis and cytokine/chemokine production. OBJECTIVES To evaluate the effect of S100A7/psoriasin on keratinocyte differentiation and regulation of the tight junction (TJ) barrier. METHODS Expression of differentiation markers and TJ proteins in human keratinocytes was determined by real-time polymerase chain reaction and Western blot. The changes in TJ barrier function were assessed by transepithelial electrical resistance and paracellular permeability assays. Glycogen synthase kinase-3 (GSK-3) and mitogen-activated protein kinase (MAPK) activation was analysed by Western blot, whereas β-catenin and E-cadherin activation was evaluated by Western blot and immunofluorescence. RESULTS S100A7/psoriasin enhanced the expression of several differentiation markers and selectively increased the expression of TJ proteins (e.g. claudins and occludin), which are known to strengthen the TJ barrier. Furthermore, S100A7/psoriasin increased β-catenin and E-cadherin accumulation at cell-cell contact, and enhanced transepithelial electrical resistance while reducing the paracellular permeability of keratinocyte layers. The data suggest that S100A7/psoriasin-mediated regulation of the TJ barrier was via both the GSK-3 and MAPK pathways, as evidenced by the inhibitory effects of inhibitors for GSK-3 and MAPKs. CONCLUSIONS Our finding that S100A7/psoriasin regulates differentiation and strengthens TJ barrier function provides novel evidence that, in addition to antimicrobial and immunoregulatory activities, S100A7/psoriasin is involved in skin innate immunity.
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Kobayashi K, Ikeda S, Hishinuma K, Hirose Y, Okada H. Conditions of Oxygen Supply inl-Glutamic Acid Fermentation from Hydrocarbon. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/00021369.1972.10860357] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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157
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Sakai A, Ikeda S, Okimoto N, Matsumoto H, Teshima K, Okazaki Y, Fukuda F, Arita S, Tsurukami H, Nagashima M, Yoshioka T. Clinical efficacy and treatment persistence of monthly minodronate for osteoporotic patients unsatisfied with, and shifted from, daily or weekly bisphosphonates: the BP-MUSASHI study. Osteoporos Int 2014; 25:2245-53. [PMID: 24899103 PMCID: PMC4134483 DOI: 10.1007/s00198-014-2756-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Accepted: 05/07/2014] [Indexed: 11/23/2022]
Abstract
UNLABELLED This multi-center, prospective, open-label, observational study evaluated the effects of once-monthly minodronate (50 mg) on treatment persistence, bone turnover markers, bone mineral density, low back pain, and upper gastrointestinal symptoms in outpatients with osteoporosis previously treated with daily or weekly bisphosphonate products. INTRODUCTION The purposes of this study were to investigate the effects of once-monthly oral minodronate (MIN 50 mg) on bone turnover markers and bone mineral density, low back pain, and upper gastrointestinal symptoms, as well as preference for and treatment persistence of MIN 50 mg among Japanese osteoporosis patients currently treated with daily or weekly bisphosphonates. METHODS Study patients were allocated based on their preference to either the Switch group (patients willing to switch over to MIN 50 mg) or the Continue group (patients wanting to continue their current therapies). Patients' treatment persistence and satisfaction levels with the therapies were assessed using a self-administered questionnaire. The study endpoints were serum TRACP-5b, serum P1NP, bone mineral density, upper gastrointestinal symptoms, and low back pain. RESULTS In total, 264 and 133 patients were allocated into the Switch and Continue groups, respectively. Approximately, 65 % of patients were willing to switch to MIN 50 mg, with the predominant reason being "less frequent dosing more convenient." Treatment persistence was significantly higher in the Switch group (MIN 50 mg) than the Continue group. Almost all patients with abnormal bone metabolism markers demonstrated normalization after switchover. MIN 50 mg alleviated low back pain and upper gastrointestinal symptoms induced by prior bisphosphonate use. CONCLUSIONS MIN 50 mg alleviates low back pain, reduces bone turnover markers and increases bone density, and induces fewer upper gastrointestinal symptoms after switchover from prior bisphosphonate products, and therefore, it may provide patients with a more convenient treatment option and enhance long-term treatment persistence.
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158
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Suzuki D, Natsui M, Mochizuki A, Miura S, Honjo H, Kinoshita K, Fukami S, Sato H, Ikeda S, Endoh T, Ohno H, Hanyu T. Design and fabrication of a perpendicular magnetic tunnel junction based nonvolatile programmable switch achieving 40% less area using shared-control transistor structure. JOURNAL OF APPLIED PHYSICS 2014; 115:17B742. [PMID: 24753634 PMCID: PMC3977752 DOI: 10.1063/1.4868332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Accepted: 12/12/2013] [Indexed: 06/03/2023]
Abstract
A compact nonvolatile programmable switch (NVPS) using 90 nm CMOS technology together with perpendicular magnetic tunnel junction (p-MTJ) devices is fabricated for zero-standby-power field-programmable gate array. Because routing information does not change once it is programmed into an NVPS, high-speed read and write accesses are not required and a write-control transistor can be shared among all the NVPSs, which greatly simplifies structure of the NVPS. In fact, the effective area of the proposed NVPS is reduced by 40% compared to that of a conventional MTJ-based NVPS. The instant on/off behavior without external nonvolatile memory access is also demonstrated using the fabricated test chip.
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159
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Fukami S, Yamanouchi M, Ikeda S, Ohno H. Depinning probability of a magnetic domain wall in nanowires by spin-polarized currents. Nat Commun 2014; 4:2293. [PMID: 23945735 DOI: 10.1038/ncomms3293] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2013] [Accepted: 07/11/2013] [Indexed: 11/09/2022] Open
Abstract
Current-induced magnetic domain wall motion is attractive for manipulating magnetization direction in spintronics devices, which open a new era of electronics. Up to now, in spite of a crucial significance to applications, investigation on a current-induced domain wall depinning probability, especially in sub-nano to a-few-nanosecond range has been lacking. Here we report on the probability of the depinning in perpendicularly magnetized Co/Ni nanowires in this timescale. A high depinning probability was obtained even for 2-ns pulses with a current density of less than 10¹² A m⁻². A one-dimensional Landau-Lifshitz-Gilbert calculation taking into account thermal fluctuations reproduces well the experimental results. We also calculate the depinning probability as functions of various parameters and found that parameters other than the coercive field do not affect the transition width of the probability. These findings will allow one to design high-speed and reliable magnetic devices based on the domain wall motion.
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Sorabella R, Takayama H, DeRoo S, Yerebakan H, Ikeda S, Weiss E, Yang J, Takeda K, George I, Yuzefpolskaya M, Uriel N, Colombo P, Jorde U, Mancini D, Naka Y. Comparison of Heart Replacement Therapy in Patients Over 65 Years Old. J Heart Lung Transplant 2014. [DOI: 10.1016/j.healun.2014.01.180] [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] Open
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161
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Sekine M, Ikeda S, Hayashizaki N, Kanesue T, Okamura M. Multiple species beam production on laser ion source for electron beam ion source in Brookhaven National Laboratory. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:02B920. [PMID: 24593625 DOI: 10.1063/1.4854876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Extracted ion beams from the test laser ion source (LIS) were transported through a test beam transport line which is almost identical to the actual primary beam transport in the current electron beam ion source apparatus. The tested species were C, Al, Si, Cr, Fe, Cu, Ag, Ta, and Au. The all measured beam currents fulfilled the requirements. However, in the case of light mass ions, the recorded emittance shapes have larger aberrations and the RMS values are higher than 0.06 π mm mrad, which is the design goal. Since we have margin to enhance the beam current, if we then allow some beam losses at the injection point, the number of the single charged ions within the acceptance can be supplied. For heaver ions like Ag, Ta, and Au, the LIS showed very good performance.
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162
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Fuwa Y, Ikeda S, Kumaki M, Sekine M, Munemoto N, Cinquegrani D, Romanelli M, Kanesue T, Okamura M, Iwashita Y. Comparison of graphite materials for targets of laser ion source. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:02B924. [PMID: 24593629 DOI: 10.1063/1.4862210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
To investigate efficient graphite material for carbon ion production in laser ion source, the plasma properties produced from these materials are measured. Comparing acquired current profile and charge state distribution, the distributions of ions in laser induced plasma from isotropic graphite and single crystal of graphite are different. The produced quantity of C(6+) from isotropic materials is larger than that from single crystal.
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163
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Fuwa Y, Ikeda S, Kumaki M, Sekine M, Cinquegrani D, Romanelli M, Kanesue T, Okamura M, Iwashita Y. Interaction of plasmas in laser ion source with double laser system. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:02B916. [PMID: 24593621 DOI: 10.1063/1.4854255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Multiple laser shots could be used to elongate an ion beam pulse width or to intensify beam current from laser ion sources. In order to confirm the feasibility of the multiple shot scheme, we investigated the properties of plasmas produced by double laser shots. We found that when the interval of the laser shots is shorter than 10 μs, the ion current profile had a prominent peak, which is not observed in single laser experiments. The height of this peak was up to five times larger than that of single laser experiment.
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Ikeda S. 86 SIMPLE METHOD FOR EMULSIFICATION OF LIPOPHILIC NUTRIENTS THAT AFFECT PRE-IMPLANTATION DEVELOPMENT OF BOVINE EMBRYOS IN VITRO. Reprod Fertil Dev 2014. [DOI: 10.1071/rdv26n1ab86] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In order to investigate the effects of bioactive lipophilic nutrients on mammalian pre-implantation embryos in vitro, amphipathic vehicles are commonly used to dissolve the lipophilic substances into culture media. However, easy emulsification of these nutrients would facilitate medium preparation. We report here a simple method for emulsification of lipophilic nutrients that affect bovine pre-implantation embryonic development in vitro. We investigated the effects of emulsified oleic acid (OA) or a mixture of antioxidative vitamins – vitamin E (VE) and β-carotene (BC). Polyglyceryl-10 laurate (P10L) was used as an emulsifier and was dissolved in sterile water at 5.05% (wt/wt) in glass vials. One percent (wt/wt) of OA or a mixture of VE (α-tocopherol) and BC (VE : BC = 1000 : 1 wt/wt) was added into the vial and mixed by using a magnetic stirrer. After first exhibiting white turbidity, the solution became transparent and stabilised, indicating stable emulsification. The emulsified OA and VE+BC were designated as emOA and emVEBC, respectively. Cumulus-enclosed oocytes obtained from abattoir bovine ovaries were in vitro-matured (IVM) for 22 h in modified synthetic oviduct fluid (mSOF) supplemented with 10% (vol/vol) fetal calf serum and 0.2 IU mL–1 FSH. After IVM, the oocytes were subjected to IVF with Percoll gradient-selected sperm from a single bull in an mSOF-based medium for 20 h. After IVF, presumptive zygotes were freed from the cumulus cells and cultured in mSOF. On Day 3 (IVF = Day 0), embryos that had developed to the 8-cell stage or more (≥8-cell) were subsequently cultured in medium supplemented with 0.05% (vol/vol) of emOA or emVEBC. Blastocyst development from ≥8-cell embryos was assessed on Day 8. In the case of no-additive control and emVEBC, the hatching rate was also assessed on Day 10. All the cultures were performed at 38.5°C under 5% CO2, 5% O2, and 90% N2 and replicated 4 times with ~18 embryos per group per replicate. The development data were statistically analysed by the general linear model. The blastocyst rate in the emOA group (36.4%) was significantly (P < 0.05) lower than that in the no-additive control (54.1%). The blastocyst rate in the emVEBC group (53.9%) was similar to that in the control; however, the hatching rate was significantly higher in the emVEBC group (22.6%) than in the control (9.2%). These data suggest that emulsification of lipophilic nutrients with P10L is an easy method to allow their addition into culture media for investigating their favourable (e.g. antioxidative vitamins) or inhibitory (e.g. OA) effects on pre-implantation development in vitro.
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Niwa T, Yoshioka H, Kourogi Y, Ikeda S, Nishiyama A, Iwasaku M, Ishida T. Continuation Maintenance Therapy with Pemetrexed(PEM) ± Bevacizumab(BEV) Following First Line Cisplatin/PEM ± BEV for NSCLC. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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166
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Yamauchi M, Shinozaki K, Ikeda S, Nitta T, Doi M. Comparison Between Primary Tumor Resection and Primary Chemotherapy for Patients with Unresectable Colorectal Cancer. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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167
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Lin SH, Hayashi M, Kono H, Hayashi H, Abe H, Ikeda S. Effect of A Magnetic Field on Photophysical Processes of Molecules. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.199700032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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168
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Koga S, Ikeda S, Yoshida T, Nakata T, Takeno M, Koide Y, Kawano H, Maemura K. Plaque composition analysis by iMap-intravascular ultrasound predicts peri-procedural myocardial injury in patients undergoing percutaneous coronary intervention. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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169
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Koga S, Ikeda S, Yoshida T, Nakata T, Takeno M, Koide Y, Kawano H, Maemura K. Circulatinng high-mobility group box 1 levels are associated with presence of thin-cap fibroatheroma in coronary culprit lesion determined by optical coherence tomography. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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170
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Koga S, Ikeda S, Yoshida T, Nakata T, Takeno M, Koide Y, Kawano H, Maemura K. Evaluation of plaque composition using iMap-intravascular ultrasound predicts thin-cap fibroatheroma determined by optical coherence tomography. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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171
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Sonoda K, Hata S, Yamasa T, Ikeda S, Maemura K. The differences of neointimal coverage among bare-metal stent, zotarolimus-eluting stent and everolimus-eluting stent at 9 Months after implantation using optical coherence tomography in STEMI patents. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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172
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Ikeda S, Tokuda K, Kanamori H, Hirai Y, Endo S, Kunishima H, Kaku M. P119: Hand hygiene compliance among nurses in a Japanese tertiary hospital emergency department. Antimicrob Resist Infect Control 2013. [PMCID: PMC3688184 DOI: 10.1186/2047-2994-2-s1-p119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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173
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Kawashiri SY, Nakashima Y, Horai Y, Suzuki T, Okada A, Iwamoto N, Ichinose K, Ogawa F, Ikeda S, Nakamura H, Origuchi T, Aoyagi K, Kawakami A. SAT0216 Low Reactive Hyperemia Index Assessed By Endo-Pat And High Serum Placenta Growth Factor Associate With Vasculopathy And Disease Progression In Patients With Systemic Sclerosis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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174
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Teshima K, Nara M, Watanabe A, Ito M, Ikeda S, Hatano Y, Oshima K, Seto M, Sawada K, Tagawa H. Dysregulation of BMI1 and microRNA-16 collaborate to enhance an anti-apoptotic potential in the side population of refractory mantle cell lymphoma. Oncogene 2013; 33:2191-203. [PMID: 23686310 DOI: 10.1038/onc.2013.177] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 03/23/2013] [Accepted: 03/25/2013] [Indexed: 12/29/2022]
Abstract
The proto-oncogene BMI1 and its product, Bmi1, is overexpressed in various types of tumors, particularly in aggressive tumors and tumors resistant to conventional chemotherapy. BMI1/Bmi1 is also crucially involved in cancer-initiating cell maintenance, and is recurrently upregulated in mantle cell lymphoma (MCL), especially aggressive variants. Recently, side population (SP) cells were shown to exhibit tumor-initiating characteristics in various types of tumors. In this study, we show that recurrent MCL cases significantly exhibit upregulation of BMI1/Bmi1. We further demonstrate that clonogenic MCL SP shows such tumor-initiating characteristics as high tumorigenicity and self-renewal capability, and that BMI1 was upregulated in the SP from recurrent MCL cases and MCL cell lines. On screening for upstream regulators of BMI1, we found that expression of microRNA-16 (miR-16) was downregulated in MCL SP cells by regulating Bmi1 in the SPs, leading to reductions in tumor size following lymphoma xenografts. Moreover, to investigate downstream targets of BMI1 in MCL, we performed cross-linking/chromatin immunoprecipitation assay against MCL cell lines and demonstrated that Bmi1 directly regulated pro-apoptotic genes such as BCL2L11/Bim and PMAIP1/Noxa, leading to enhance anti-apoptotic potential of MCL. Finally, we found that a proteasome inhibitor bortezomib, which has been recently used for relapsed MCL, effectively induced apoptosis among MCL cells while reducing expression of Bmi1 and increasing miR-16 in MCL SP. These results suggest that upregulation of BMI1 and downregulation of miR-16 in MCL SP has a key role in the disease's progression by reducing MCL cell apoptosis. Our results provide important new insight into the pathogenesis of MCL and strongly suggest that targeting BMI1/Bmi1 might be an effective approach to treating MCL, particularly refractory and recurrent cases.
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175
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Baba Y, Hayashi S, Ikeda S, Higashi M, Nakajo M. Preliminary experimental study on splenic hemodynamics of radiofrequency ablation for the spleen. J Vasc Interv Radiol 2013. [DOI: 10.1016/j.jvir.2013.01.263] [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] Open
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176
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Hnin Si MK, Mitaka C, Tulafu M, Abe S, Ikeda S. Atrial natriuretic peptide attenuates metabolic acidosis and inflammation of the kidney, lung and heart in a rat model of renal ischemia-reperfusion injury. Crit Care 2013. [PMCID: PMC3643097 DOI: 10.1186/cc12350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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177
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Baba Y, Hayashi S, Ikeda S, Arata K, Nakajo M. Comparison of patency rates by percutaneous transluminal angioplasty with bypass graft in arteriosclerotic lesions of the superficial femoral artery with special reference to rutherford runoff score. J Vasc Interv Radiol 2013. [DOI: 10.1016/j.jvir.2013.01.264] [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] Open
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178
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Kuroki T, Ikeda S, Okada T, Maoka T, Kitamura A, Sugimoto M, Kume S. Astaxanthin ameliorates heat stress-induced impairment of blastocyst development in vitro:--astaxanthin colocalization with and action on mitochondria--. J Assist Reprod Genet 2013; 30:623-31. [PMID: 23536152 DOI: 10.1007/s10815-013-9987-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 03/18/2013] [Indexed: 11/28/2022] Open
Abstract
PURPOSE The effects of astaxanthin (Ax) on the in vitro development of bovine embryos cultured under heat stress were investigated in combination with the assessment of its cellular accumulation and action on mitochondrial membrane potential (ΔΨm). METHODS Bovine ≥8-cell embryos were collected on day 3 after in vitro fertilization and exposed to single (day 4) or repeated (day 4 and 5) heat stress (10 h/day at 40.5 °C). Ax was added into culture medium under the repeated heat stress and blastocyst development was evaluated. The cellular uptake of Ax in embryos was examined using bright-field and confocal laser-scanning microscopy, and high-performance liquid chromatography. The relationship between Ax and mitochondria localization was assessed using MitoTracker dye. The effects of Ax on ΔΨm were investigated using JC-1 dye. RESULTS Blastocyst development in the repeated heat stress treatment decreased significantly (P < 0.05) compared with those in single heat stress or normal thermal treatment. The addition of Ax into culture medium did lead to a significant recovery in blastocyst development in the repeated heat-treated group. Ax was detected in cytoplasm of embryos and observed to colocalize with mitochondria. Ax recovered ΔΨm in embryos that was decreased by the heat treatment. CONCLUSIONS Ax ameliorated the heat stress-induced impairment of blastocyst development. Our results suggest that the direct action of Ax on mitochondrial activity via cellular uptake is a mechanism of the ameliorating effects.
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Tercero C, Ikeda S, Ooe K, Fukuda T, Arai F, Negoro M, Takahashi I, Kwon G. In vitro measurement of tissue integrity during saccular aneurysm embolizations for simulator-based training. Interv Neuroradiol 2012; 18:401-12. [PMID: 23217635 DOI: 10.1177/159101991201800406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Accepted: 06/03/2012] [Indexed: 11/16/2022] Open
Abstract
In the domain of endovascular neurosurgery, the measurement of tissue integrity is needed for simulator-based training and for the development of new intravascular instruments and treatment techniques. In vitro evaluation of tissue manipulation can be achieved using photoelastic stress analysis and vasculature modeling with photoelastic materials. In this research we constructed two types of vasculature models of saccular aneurysms for differentiation of embolization techniques according to the respect for tissue integrity measurements based on the stress within the blood vessel model wall. In an aneurysm model with 5 mm dome diameter, embolization using MicroPlex 10 (Complex 1D, with 4 mm diameter loops), a maximum area of 3.97 mm² with stress above 1 kPa was measured. This area increased to 5.50 mm² when the dome was touched deliberately with the release mechanism of the coil, and to 4.87 mm² for an embolization using Micrusphere, (Spherical 18 Platinum Coil). In a similar way trans-cell stent-assisted coil embolization was also compared to human blood pressure simulation using a model of a wide-necked saccular aneurysm with 7 mm diameter. The area with stress above 1kPa was below 1 mm² for the pressure simulation and maximized at 3.79 mm² during the trans-cell insertion of the micro-catheter and at 8.92 mm² during the embolization. The presented results show that this measurement system is useful for identifying techniques compromising tissue integrity, comparing and studying coils and embolization techniques for a specific vasculature morphology and comparing their natural stress variations such as that produced by blood pressure.
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Miyahara Y, Nishimura T, Itakura K, Takahashi S, Komatsu A, Ikeda S, Yokokawa M, Kawaguchi A, Uchida N, Miura Y. Feasibility of Direct-Conversion Flat Panel Detector (FPD) System as Quality Assurance (QA) Tool for 192-Ir Source of High-dose-rate (HDR) Remote Afterloading Unit: Evaluation of Positional and Temporal Accuracy. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2279] [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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181
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Ohshima KI, Ikeda S, Kawasaki T, Takahashi M. Crystal structure analysis of layered compounds Cr xTiS 2. Acta Crystallogr A 2012. [DOI: 10.1107/s0108767312096547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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182
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Ohno Y, Mita A, Ikegami T, Masuda Y, Urata K, Nakazawa Y, Kobayashi A, Terada M, Ikeda S, Miyagawa S. Temporary auxiliary partial orthotopic liver transplantation using a small graft for familial amyloid polyneuropathy. Am J Transplant 2012; 12:2211-9. [PMID: 22500969 DOI: 10.1111/j.1600-6143.2012.04061.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Donor shortage is a major issue in liver transplantation. We have successfully performed temporary auxiliary partial orthotopic liver transplantation (APOLT) using a small volume graft procured from a living donor for recipients with familial amyloid polyneuropathy (FAP). The aim of this study was to evaluate this procedure by comparing it with standard living donor liver transplantation (LDLT). We compared 13 recipients undergoing this procedure with 23 recipients undergoing a standard LDLT for the treatment of FAP. The estimated donor graft volume and the graft volume/recipient's standard liver volume ratio were significantly smaller in the temporary APOLT group than in the standard LDLT group. Postoperative complications were comparable, although the hospital stay was longer in the temporary APOLT group. All the patients safely underwent a remnant native liver resection about 2 months after their first operation in the temporary APOLT group. No symptoms related to FAP developed before the remnant liver resection, and no significant differences in graft and patient survival were observed between the two groups. We successfully performed temporary APOLT using a small volume liver graft without postoperative liver failure for FAP. Temporary APOLT for FAP might be a useful alternative procedure for expanding the donor pool for LDLT.
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Ohno Y, Mita A, Ikegami T, Masuda Y, Urata K, Nakazawa Y, Kobayashi A, Terada M, Ikeda S, Miyagawa S. Temporary auxiliary partial orthotopic liver transplantation using a small graft for familial amyloid polyneuropathy. Am J Transplant 2012. [PMID: 22500969 DOI: 10.1111/j.1600-6143.2012.04061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Donor shortage is a major issue in liver transplantation. We have successfully performed temporary auxiliary partial orthotopic liver transplantation (APOLT) using a small volume graft procured from a living donor for recipients with familial amyloid polyneuropathy (FAP). The aim of this study was to evaluate this procedure by comparing it with standard living donor liver transplantation (LDLT). We compared 13 recipients undergoing this procedure with 23 recipients undergoing a standard LDLT for the treatment of FAP. The estimated donor graft volume and the graft volume/recipient's standard liver volume ratio were significantly smaller in the temporary APOLT group than in the standard LDLT group. Postoperative complications were comparable, although the hospital stay was longer in the temporary APOLT group. All the patients safely underwent a remnant native liver resection about 2 months after their first operation in the temporary APOLT group. No symptoms related to FAP developed before the remnant liver resection, and no significant differences in graft and patient survival were observed between the two groups. We successfully performed temporary APOLT using a small volume liver graft without postoperative liver failure for FAP. Temporary APOLT for FAP might be a useful alternative procedure for expanding the donor pool for LDLT.
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184
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Kamijo M, Nishiyama C, Takagi A, Nakano N, Hara M, Ikeda S, Okumura K, Ogawa H. Cyclooxygenase-2 inhibition restores ultraviolet B-induced downregulation of ATP2A2/SERCA2 in keratinocytes: possible therapeutic approach of cyclooxygenase-2 inhibition for treatment of Darier disease. Br J Dermatol 2012; 166:1017-22. [PMID: 22413864 DOI: 10.1111/j.1365-2133.2011.10789.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND ATP2A2 encoding the sarcoplasmic/endoplasmic reticulum Ca(2+) -ATPase2 (SERCA2) is a Darier disease (DD)-related gene. Ultraviolet (UV) B irradiation downregulates ATP2A2/SERCA2 expression in keratinocytes, whereas cyclooxygenase-2 (COX-2) expression is dramatically upregulated by UVB. OBJECTIVES To analyse the involvement of COX-2 in ATP2A2/SERCA2 expression. METHODS Keratinocytes were transfected with COX-2 siRNA or treated with COX-2 inhibitor, celecoxib, to evaluate the effect of COX-2 on ATP2A2/SERCA2 expression. Quantitative real-time polymerase chain reaction, Western blotting analysis and reporter assay were used to determine the amount of mRNA, protein level and transcription activity, respectively. RESULTS COX-2 knockdown by siRNA resulted in upregulation of ATP2A2 transcription. Treatment by celecoxib rescued UVB-mediated suppression of the ATP2A2 transcription and SERCA2 protein expression. Simple addition of prostaglandin (PG) E(2) , which is a product of COX-2 enzyme, reduced the amounts of ATP2A2 mRNA and SERCA2 protein in keratinocytes. CONCLUSIONS UVB downregulates ATP2A2/SERCA2 expression via induction of COX-2 expression and subsequent increase of PGE(2) production in keratinocytes. Considering that DD is caused by the decreased function of SERCA2 due to the reduced expression of the ATP2A2 gene, this finding shows the possibility that COX-2 inhibition may be useful to prevent and/or treat DD.
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Baba Y, Hayashi S, Ikeda S, Higashi M, Nakajo M. Abstract No. 144: Effectiveness of endovascular embolization with collagen type 1: an animal experimental study. J Vasc Interv Radiol 2012. [DOI: 10.1016/j.jvir.2011.12.188] [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] Open
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186
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Koyama H, Ikeda S, Sugimoto M, Kume S. Effects of Folic Acid on the Development and Oxidative Stress of Mouse Embryos Exposed to Heat Stress. Reprod Domest Anim 2012; 47:921-7. [DOI: 10.1111/j.1439-0531.2012.01992.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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187
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Ozawa K, Tazawa K, Kishida D, Fukushima K, Matsuda M, Ikeda S. Transient pulmonary edema following Adrenal Infarction in a patient with primary Anti-phospholipid syndrome. CLINICAL MEDICINE INSIGHTS: CASE REPORTS 2012; 5:163-8. [PMID: 23239931 PMCID: PMC3520181 DOI: 10.4137/ccrep.s10808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
We report a patient with primary anti-phospholipid syndrome (APS) who developed pulmonary edema following sudden-onset pain in the left, lower back of the chest. Radiological examinations demonstrated fresh infarction of the left adrenal gland but no obvious thrombi in pulmonary arteries. The patient quickly recovered from pulmonary edema with anti-coagulation therapy alone. Primary APS may have caused adrenal infarction in the patient, leading to transient pulmonary edema via microthrombosis and/or excessive release of catecholamine.
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188
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Conceicao I, Coelho T, Plante-Bordeneuve V, Waddington Cruz M, Ericzon B, Falk R, Ikeda S, Maurer M, Suhr O, Ando Y, Mazzeo A, Grogan D. P3.28 Baseline neurologic function in symptomatic patients in the Transthyretin Amyloidosis Outcomes Survey (THAOS). Neuromuscul Disord 2011. [DOI: 10.1016/j.nmd.2011.06.922] [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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189
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Shime-Hattori A, Kobayashi S, Ikeda S, Asano R, Shime H, Shinano T. A rapid and simple PCR method for identifying isolates of the genus Azospirillum within populations of rhizosphere bacteria. J Appl Microbiol 2011; 111:915-24. [PMID: 21790914 DOI: 10.1111/j.1365-2672.2011.05115.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS To develop a rapid and simple genus-specific polymerase chain reaction (PCR) method for detecting and identifying isolates of the genus Azospirillum which is well-recognized as plant growth-promoting rhizobacterium. METHODS AND RESULTS Nine pairs of PCR primers were designed based on the Azospirillum 16S rRNA, ipdC, nifA and nifH genes to assess their genus specificity by testing against 12 Azospirillum (from seven species) and 15 non-Azospirillum reference strains, as compared with the fAZO/rAZO pair reported by Baudoin et al. (J Appl Microbiol, 108, 2010, 25). Among the primer pairs assessed, the Az16S-A pair designed on the 16S rRNA gene sequence showed the highest genus specificity: it successfully yielded a single amplicon of the expected size in all the 12 Azospirillum strains and for a close relative, Rhodocista centenaria. The PCR with the Az16S-A primers generated a detectable amount of the amplicon from ≥10³ CFU ml⁻¹ of Azospirillum cell suspensions even in the presence of contaminants and accurately discriminated Azospirillum and non-Azospirillum species in both 35 Azospirillum-like and 70 unknown isolates from plant roots and rhizosphere soils. CONCLUSIONS We developed a rapid and simple PCR method for detecting and identifying Azospirillum isolates within populations of rhizosphere bacteria. SIGNIFICANCE AND IMPACT OF THE STUDY The method developed would serve as a useful tool for isolating a variety of indigenous Azospirillum bacteria from agricultural samples.
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Tsujimura Y, Nakayama T, Ishizaki T, Takahashi Y, Miyazaki K, Satoh T, Ikeda S, Kimura S. P2-308 The characteristics of people who had been screened to be hyperglycaemic but did not visit clinics: a retrospective cohort study. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976k.41] [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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191
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Shibayama M, Ito F, Miura Y, Nakamura S, Ikeda S, Fujiwara K. Unsuspected reason for sciatica in Bertolotti's syndrome. ACTA ACUST UNITED AC 2011; 93:705-7. [PMID: 21511940 DOI: 10.1302/0301-620x.93b5.26248] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Patients with Bertolotti's syndrome have characteristic lumbosacral anomalies and often have severe sciatica. We describe a patient with this syndrome in whom standard decompression of the affected nerve root failed, but endoscopic lumbosacral extraforaminal decompression relieved the symptoms. We suggest that the intractable sciatica in this syndrome could arise from impingement of the nerve root extraforaminally by compression caused by the enlarged transverse process.
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192
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Miyaki K, Htun NC, Song Y, Ikeda S, Muramatsu M, Shimbo T. The combined impact of 12 common variants on hypertension in Japanese men, considering GWAS results. J Hum Hypertens 2011; 26:430-6. [PMID: 21633377 DOI: 10.1038/jhh.2011.50] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Genome-wide association studies have identified several polymorphisms that appear to be on hypertension-susceptible regions. We performed the current replication study in order to evaluate the association of these loci with hypertension in healthy Japanese males and then examined the combined effect of 12 independent variants. Overall, 735 Japanese men from two independent cohorts were recruited. Association with hypertension was assessed in 16 polymorphisms on 12 genes and 12 were chosen to evaluate the combined impact. Polymorphisms on the COMT, ATP2B1, CYP11A1 and the CSK genes were confirmed to be associated with hypertension and blood pressure (BP). Current findings also replicated previous results for the CYP11B2 and PTGIS genes. Although there were no significant associations found for other variants, our results suggested there was a combined impact for 12 loci. Individuals carrying more risk alleles had a higher risk of hypertension (P for the slope=0.002). Blood pressures also increased in conjunction with an increasing risk allele score (P for trend=7.84 × 10(-6) and 1.85 × 10(-5) for SBP and DBP, respectively). Our results confirmed the associations between hypertension or blood pressure and four gene variants. We also found a significant combined effect of the 12 gene loci.
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Obayashi K, Ueda M, Jono H, Yamashita T, Yazaki M, Kametani F, Ohya Y, Inomata Y, Ikeda S, Ando Y. Amyloid turnover after liver transplantation in FAP. Amyloid 2011; 18 Suppl 1:187-9. [PMID: 21838482 DOI: 10.3109/13506129.2011.574354070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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194
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Nishiyama Y, Yasumatsuya K, Kasai K, Sakase M, Nishino O, Akaike M, Nagase T, Sugimoto M, Ikeda S, Kume S. Effects of supplemental β-carotene with whey on IgA transfer from maternal milk and mucosal IgA induction in neonatal mice and calves. Livest Sci 2011. [DOI: 10.1016/j.livsci.2010.10.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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KAWAGUCHI A, Yokokawa M, Ikeda S, Masahiro M, Kawabata Y, Yano S, Tanaka T, Uchida N. 972 poster RADIOTHERAPY WITH CONCOMITANT WEEKLY LOW DOSE GEMCITABINE FOR LOCALLY ADVANCED PANCREATIC CANCER. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71094-5] [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]
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196
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Izumi R, Shinohata R, Ohmaru N, Kitawaki T, Usui S, Ikeda S, Kusachi S. QT Dispersion Measured by Automatic Computerized 12-Lead Electrocardiography Contributes Significantly to Detection of Left Ventricular Hypertrophy in Japanese Patients. J Int Med Res 2011; 39:51-63. [DOI: 10.1177/147323001103900107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study assessed the diagnostic value of QT dispersion for left ventricular hypertrophy (LVH) as determined by echocardiography. The QT and QRS interval parameters were determined automatically using computerized 12-lead electrocardiography in 153 Japanese outpatients. Corrected QT dispersion (QTcD) and maximal QRS duration (MaxQRS) were significantly correlated with left ventricular mass index. The sum of QTcD and MaxQRS showed the highest correlation with left ventricular mass index among QT and QRS interval parameters and their combinations. The cut-off points for LVH discrimination in this study were different to those reported in Western, mainly Caucasian, populations, suggesting the need for ethnicity-specific LVH detection criteria. A scoring system derived from multiple logistic regression analysis, employing a combination of QTcD, QRS time–voltage product and ST-T change, showed a specificity of 86.3%. It was concluded that QTcD, in addition to QRS time–voltage product and ST-T change, improved the detection of LVH.
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Tanaka S, Narusawa K, Onishi H, Miura M, Hijioka A, Kanazawa Y, Nishida S, Ikeda S, Nakamura T. Lower osteocalcin and osteopontin contents of the femoral head in hip fracture patients than osteoarthritis patients. Osteoporos Int 2011; 22:587-97. [PMID: 20625700 DOI: 10.1007/s00198-010-1328-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2009] [Accepted: 06/04/2010] [Indexed: 01/22/2023]
Abstract
UNLABELLED In patients with femoral neck fracture, clinical factors, bone metabolism markers (in serum, urine, and bone), bone mineral density, radiographic parameters, and bone histomorphometric parameters were investigated to detect determinants of fragility fracture. The osteocalcin/deoxypyridinoline ratio and osteopontin/calcium ratio of cortical bone were selected as significant predictors. INTRODUCTION Measurement of bone mineral density is widely used to assess bone strength, but this also depends on other bone components and on bone structure. The objective of this study was to investigate risk factors for fracture related to bone quality, the patient's history, and the patient's lifestyle. METHODS Twenty-one patients with femoral neck fracture and 18 patients with osteoarthritis were enrolled. Blood and urine samples were collected on admission to hospital, and bone samples were obtained from femoral necks resected during surgery. Multivariate logistic regression analysis was performed using osteoarthritis and femoral neck fracture as combined variables to assess the influence of alcohol or coffee intake, eating natto (fermented soybeans), osteocalcin and calcium concentrations, the osteocalcin/deoxypyridinoline ratio and osteopontin/calcium ratios of cortical bone and cancellous bone, various bone histomorphometric parameters, the bone mineral density of the lumbar spine and the intact contralateral femoral neck, and various radiographic parameters of the spine RESULTS By forward stepwise multivariate analysis, the osteocalcin/deoxypyridinoline and osteopontin/calcium ratios of cortical bone were selected as significant factors for fracture (the odds ratios were 0.493 and <0.001, respectively; both P<0.001). CONCLUSIONS A decrease of osteopontin and osteocalcin in bone is important for promoting vulnerability to hip fracture.
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Uehara T, Onda T, Togami S, Amano T, Tanikawa M, Sawada M, Ikeda S, Kato T, Kasamatsu T. Safety and efficacy of a splenectomy during debulking surgery for Müllerian carcinoma. EUR J GYNAECOL ONCOL 2011; 32:269-273. [PMID: 21797114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
PURPOSE This study was designed to assess the safety and efficacy of a splenectomy and to analyze the prognostic factors of Müllerian carcinoma with spleen metastasis. METHODS We reviewed the medical records of 11 patients with Müllerian carcinoma who underwent a splenectomy between 1997 and 2007. The treatment outcome of these patients was examined and the possible prognostic factors were investigated by univariate analysis. RESULTS Four and seven patients underwent a splenectomy for primary and recurrent disease, respectively. A complete resection was achieved in eight patients. A blood transfusion was not required and only two mild postoperative complications were observed. The median and five-year survivals of all patients following treatment were 39 months and 39%, respectively. Older patients (> or = 60 years old) and patients with a poor performance status (PS2) had a poorer prognosis by univariate analysis. CONCLUSIONS A splenectomy can be performed safely and effectively during debulking surgery for appropriately selected patients with primary or recurrent Müllerian carcinoma.
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Waki K, Hayashi A, Ikeda S, Ikeda S, Nagatsuka K, Honma Y, Kadowaki T, Yoshinoya S. Measuring Platelet Aggregation in Dialysis Patients With a Whole Blood Aggregometer by the Screen Filtration Pressure Method. Ther Apher Dial 2010; 15:203-6. [DOI: 10.1111/j.1744-9987.2010.00899.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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200
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Matsushima M, Tercero C, Ikeda S, Fukuda T, Arai F, Negoro M, Takahashi I. Photoelastic stress analysis in blood vessel phantoms: three-dimensional visualization and saccular aneurysm with bleb. Int J Med Robot 2010; 7:33-41. [DOI: 10.1002/rcs.365] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/05/2010] [Indexed: 11/08/2022]
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