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Yoshimura Y, Kasahara H, Nagasaki K, Tokitani M, Ashikawa N, Ueda Y, Ito S, Kubo S, Shimozuma T, Igami H, Takahashi H, Nishiura M, Kobayashi S, Mizuno Y, Okada K, Ogasawara S, Makino R, Yamada I, Tokuzawa T, Tanaka K, Mutoh T, Yamada H. Long-pulse Plasma Discharges by Upgraded ECH System in the LHD. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20158702020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nakagawa Y, Okazaki Y, Hanakawa T, Mizuno Y, Kitajo K. Repetitive TMS-modulated local and global phase dynamics of human brain activity. Brain Stimul 2015. [DOI: 10.1016/j.brs.2015.01.203] [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] Open
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Funayama M, Ohe K, Amo T, Furuya N, Yamaguchi J, Saiki S, Li Y, Ogaki K, Ando M, Yoshino H, Tomiyama H, Nishioka K, Hasegawa K, Saiki H, Satake W, Mogushi K, Sasaki R, Kokubo Y, Kuzuhara S, Toda T, Mizuno Y, Uchiyama Y, Ohno K, Hattori N. CHCHD2 mutations in autosomal dominant late-onset Parkinson's disease: a genome-wide linkage and sequencing study. Lancet Neurol 2015; 14:274-82. [DOI: 10.1016/s1474-4422(14)70266-2] [Citation(s) in RCA: 189] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Ii T, Kubo S, Shimozuma T, Kobayashi S, Okada K, Yoshimura Y, Igami H, Takahashi H, Ito S, Mizuno Y, Okada K, Makino R, Kobayashi K, Goto Y, Mutoh T. Design of polarizers for a mega-watt long-pulse millimeter-wave transmission line on the large helical device. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2015; 86:023502. [PMID: 25725837 DOI: 10.1063/1.4907355] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The polarizer is one of the critical components in a high-power millimeter-wave transmission line. It requires full and highly efficient coverage of any polarization states, high-power tolerance, and low-loss feature. Polarizers with rounded shape at the edge of the periodic groove surface are designed and fabricated by the machining process for a mega-watt long-pulse millimeter-wave transmission line of the electron cyclotron resonance heating system in the large helical device. The groove shape of λ/8- and λ/4-type polarizers for an 82.7 GHz transmission line is optimally designed in an integral method developed in the vector theories of diffraction gratings so that the efficiency to realize any polarization state can be maximized. The dependence of the polarization states on the combination of the two polarizer rotation angles (Φλ/8, Φλ/4) is examined experimentally in a low-power test with the newly developed polarization monitor. The results show that the measured polarization characteristics are in good agreement with the calculated ones.
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Shimozuma T, Kobayashi S, Ito S, Ito Y, Kubo S, Yoshimura Y, Nishiura M, Igami H, Takahashi H, Mizuno Y, Okada K, Mutoh T. Development of a Millimeter-Wave Beam Position and Profile Monitor for Transmission Efficiency Improvement in an ECRH System. EPJ WEB OF CONFERENCES 2015. [DOI: 10.1051/epjconf/20158704011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Yoda T, Zettsu N, Onodera H, Mizuno Y, Kondo H, Teshima K. Flux growth of patterned LiCoO2 crystal arrays directly on a Pt substrate in molten LiNO3. RSC Adv 2015. [DOI: 10.1039/c5ra17459g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We demonstrate a new way to prepare hollow-structured LiCoO2 crystals directly on a Pt substrate for the first time through a combination of semi-additive electrodeposition of a Co core and subsequent flux growth in molten LiNO3.
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Takagi H, Watanabe T, Mizuno Y, Kawai N, Umemoto T. Meteorology in ruptured abdominal aortic aneurysm: an institutional study and a meta-analysis of published studies reporting atmospheric pressure. INT ANGIOL 2014; 33:553-559. [PMID: 25002207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The aim of this paper was to determine whether weather factors including atmospheric pressure are associated with the occurrence of ruptured abdominal aortic aneurysm (RAAA). We investigated our institutional experiences of RAAA in more than 150 patients during 8 years. Further, we performed a meta-analysis of published studies reporting the influence of atmospheric pressure on RAAA. We retrospectively evaluated 152 patients who underwent surgery for RAAA (including ruptured iliac arterial aneurysm) at our institute between 1 January 2006 and 31 December 2013. Daily regional meteorological data (in the nearest weather station located 3.5 km from the hospital) were obtained online from Japan Meteorological Agency. To identify comparative studies of mean atmospheric pressure on the day with RAAA versus that on the day without RAAA, MEDLINE and EMBASE were searched through January 2014 using Web-based search engines (PubMed and OVID). Mean sea level atmospheric pressure, delta mean atmospheric pressure (difference between mean sea level atmospheric pressure on the day and that on the previous day), and sunshine duration on the day with RAAA were significantly lower than those on the day without RAAA: 1012.43±7.44 versus 1013.71±6.49 hPa, P=0.039, -1.18±5.15 versus 0.05±5.62 hPa, P=0.005; and 4.76±3.76 versus 5.47±3.88 h, P=0.026; respectively. A pooled analysis of 8 studies (including our institutional study) demonstrated that mean atmospheric pressure on the day with RAAA was significantly lower than that on the day without RAAA: standardized mean difference, -0.09; 95% confidence interval, -0.14 to -0.04; P=0.0009. Atmospheric pressure on the day with RAAA appears lower than that on the day without RAAA. Atmospheric pressure may be associated with the occurrence of RAAA.
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Hauser RA, Schapira AHV, Barone P, Mizuno Y, Rascol O, Busse M, Debieuvre C, Fraessdorf M, Poewe W. Long-term safety and sustained efficacy of extended-release pramipexole in early and advanced Parkinson's disease. Eur J Neurol 2014; 21:736-43. [PMID: 24834511 PMCID: PMC4282380 DOI: 10.1111/ene.12375] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND PURPOSE To assess the long-term safety and efficacy of pramipexole as a once-daily (q.d.) extended-release oral formulation in early or advanced Parkinson's disease (PD). METHODS In two double-blind (DB) studies of early PD and one of advanced PD,active-treatment arms received pramipexole immediate release (IR) or extended release (ER), with exposure lasting up to 33 weeks. In open-label (OL) extensions that followed immediately, subjects took ER q.d. for up to 80 weeks, with dosage adjustment permitted (range 0.375-4.5 mg q.d.). RESULTS Of 590 subjects completing an early-PD DB study, 511 entered the early-PD OL extension; 408 completed it. Reported adverse events (AEs) with incidence ≥10.0% were somnolence (15.1%), peripheral edema (11.7%) and back pain (10.6%). Of 465 subjects completing the advanced-PD DB study, 391 entered the advanced-PD OL extension; 329 completed it. Reported AEs with incidence ≥10.0%were dyskinesia (27.4%) and somnolence (13.6%). Impulse control disorders were identified by semi-structured interview in 13 subjects (1.4% of 902). In exploratory analyses, adjusted mean Unified Parkinson's Disease Rating Scale (UPDRS) PartsII + III scores (excluding ex-placebo recipients) remained substantially improved from DB baseline scores prior to pramipexole introduction, at -6.6 and -6.3 points amongst ex-DB-ER and ex-DB-IR recipients after 113 weeks of pramipexole (33 DB plus 80 OL) in early PD, and -11.5 and -9.1 after up to 113 weeks (up to 33 DB plus 80 OL) in advanced PD. CONCLUSIONS These results support the long-term safety and efficacy of pramipexole ER in early and advanced PD. AEs were typical for dopaminergic medications, and UPDRS scores suggested sustained symptomatic benefit.
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Kamio S, Takahashi H, Kubo S, Shimozuma T, Yoshimura Y, Igami H, Ito S, Kobayashi S, Mizuno Y, Okada K, Osakabe M, Mutoh T. Electron cyclotron beam measurement system in the Large Helical Device. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:11E822. [PMID: 25430387 DOI: 10.1063/1.4893432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In order to evaluate the electron cyclotron (EC) heating power inside the Large Helical Device vacuum vessel and to investigate the physics of the interaction between the EC beam and the plasma, a direct measurement system for the EC beam transmitted through the plasma column was developed. The system consists of an EC beam target plate, which is made of isotropic graphite and faces against the EC beam through the plasma, and an IR camera for measuring the target plate temperature increase by the transmitted EC beam. This system is applicable to the high magnetic field (up to 2.75 T) and plasma density (up to 0.8 × 10(19) m(-3)). This system successfully evaluated the transmitted EC beam profile and the refraction.
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Okada K, Nishiura M, Kubo S, Shimozuma T, Yoshimura Y, Igami H, Takahashi H, Tanaka K, Kobayashi S, Ito S, Mizuno Y, Ogasawara S. Development of fast steering mirror control system for plasma heating and diagnostics. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:11E811. [PMID: 25430376 DOI: 10.1063/1.4891044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A control system for a fast steering mirror has been newly developed for the electron cyclotron heating (ECH) launchers in the large helical device. This system enables two-dimensional scan during a plasma discharge and provides a simple feedback control function. A board mounted with a field programmable gate array chip has been designed to realize feedback control of the ECH beam position to maintain higher electron temperature by ECH. The heating position is determined by a plasma diagnostic signal related to the electron temperature such as electron cyclotron emission and Thomson scattering.
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Tochigi H, Kajihara T, Mizuno Y, Tamaru S, Kamei Y, Okazaki Y, Ishihara O. Micrornas and their target genes related to endometrial decidualization. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.1000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ishikawa T, Mizuno Y, Ishida J, Konakahara Y, Kobayashi A, Hagiwara M, Gomi Y, Yokosuka J, Aizawa M, Saeki C, Kitahara T, Satoh K, Amano K, Hokari A, Hama H, Zeniya M, Tajiri H. PP060-MON: The Nutritional Relationship Between Nonalcoholic Fatty Liver Disease and Type 2 Diabetes. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50395-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mizuno Y. Recent Research Progress in and Future Perspective on Treatment of Parkinson's Disease. ACTA ACUST UNITED AC 2014. [DOI: 10.1159/000365571] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Nomoto M, Mizuno Y, Kondo T, Hasegawa K, Murata M, Takeuchi M, Ikeda J, Tomida T, Hattori N. Transdermal rotigotine in advanced Parkinson's disease: a randomized, double-blind, placebo-controlled trial. J Neurol 2014; 261:1887-93. [PMID: 25022939 DOI: 10.1007/s00415-014-7427-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 06/27/2014] [Accepted: 06/27/2014] [Indexed: 10/24/2022]
Abstract
Rotigotine, a non-ergot dopamine receptor agonist, offers potential for continuous dopaminergic stimulation that could avoid the fluctuations observed with traditional treatments. We conducted a randomized, double-blind, placebo-controlled trial in Japanese patients with advanced Parkinson's disease (PD) to investigate the efficacy and safety of rotigotine. Inclusion criteria included the presence of motor complications, such as wearing off, on-off, delayed-on/no-on, any circumstances that could interfere with levodopa dose escalation because of side effects, or declining levodopa efficacy. The enrolled patients received once-daily applications of rotigotine transdermal patches or matched placebo patches. A total of 174 patients were randomly assigned to rotigotine (87 patients) or placebo (87 patients). The full analysis set included 172 patients (86 for the rotigotine group and 86 for the placebo group). The maximum maintenance dose of rotigotine was set at 16 mg/24 h. The changes in unified PD rating scale Part III scores from baseline to the end of the trial were -10.1 ± 9.0 (mean ± standard deviation) in the rotigotine group and -4.4 ± 7.4 in the placebo group (p < 0.001). There was a significantly greater reduction in the off-time (p = 0.014) in the rotigotine group. Rotigotine was well tolerated, with serious adverse events being reported in only three patients in each group. Rotigotine at doses of up to 16 mg/24 h is efficacious and safe in Japanese patients with advanced PD.
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Matsumura M, Mizuno Y, Okamoto M, Sawa N, Katayama Y, Shimoyama N, Kawagishi N, Miura K. Long-term complete remission of multiple extranodal natural killer/T-cell-type posttransplant lymphoproliferative disorder after surgical resection: a case report. Transplant Proc 2014; 46:2373-6. [PMID: 25011572 DOI: 10.1016/j.transproceed.2014.02.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 02/05/2014] [Accepted: 02/27/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Posttransplant lymphoproliferative disorder (PTLD) is a life-threatening complication of organ transplantation that results from immunosuppression therapy. Most cases of PTLD derive from the B-cell lineage. T-cell PTLD, particularly natural killer (NK)/T-cell PTLD, is quite rare; only a few cases have been described. CASE REPORT A 42-year-old woman received a living-related renal allograft from her father. Sixteen years after transplantation, the patient presented with a 1-week history of low-grade fever and epigastralgia. Computed tomography revealed intestinal masses and a right upper lung lobe mass. Gallium scintigraphy showed uptake in the abdominal mass. Epstein-Barr virus-related antibody was not detected in the patient's serum sample. We performed extirpation of the jejunum and ileum tumors. The pathologic findings showed that these 2 tumors were NK/T-cell lymphoma. After the operation, the lung mass rapidly enlarged, and right upper lobectomy was performed. The right upper lung lobe tumor showed the same histopathologic findings as the small bowel tumor. The final histologic diagnosis was established as multiple extranodal NK/T cell type PTLD of the small bowel and right upper lung lobe. CONCLUSIONS After reduction of the immunosuppressive agent, no recurrence of PTLD has been observed for the past 9 years.
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Kashihara K, Kondo T, Mizuno Y, Kikuchi S, Kuno S, Hasegawa K, Hattori N, Mochizuki H, Mori H, Murata M, Nomoto M, Takahashi R, Takeda A, Tsuboi Y, Ugawa Y, Yamanmoto M, Yokochi F, Yoshii F, Stebbins GT, Tilley BC, Luo S, Wang L, LaPelle NR, Goetz CG. Official Japanese Version of the Movement Disorder Society-Unified Parkinson's Disease Rating Scale: validation against the original English version. Mov Disord Clin Pract 2014; 1:200-212. [PMID: 25328906 DOI: 10.1002/mdc3.12058] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The Movement Disorder Society (MDS)-sponsored revision of the Unified Parkinson's Disease (PD) Rating Scale (UPDRS) (MDS-UPDRS) has been developed and is now available in English. Part of the overall program includes the establishment of official non-English translations of the MDS-UPDRS. We present the process for completing the official Japanese translation of the MDS-UPDRS with clinimetric testing results. METHODS In this trial, the MDS-UPDRS was translated into Japanese, underwent cognitive pre-testing, and the translation was modified after taking the results into account. The final translation was approved as Official Working Draft of the MDS-UPDRS Japanese version and tested in 365 native-Japanese-speaking patients with PD. Confirmatory analyses were used to determine whether the factor structure for the English-language MDS-UPDRS could be confirmed in data collected using the Official Working Draft of the Japanese translation. As a secondary analysis, we used exploratory factor analyses to examine the underlying factor structure without the constraint of a pre-specified factor organization. RESULTS Confirmatory factor analysis revealed that Comparative Fit Index for all Parts of the MDS-UPDRS exceeded the minimal standard of 0.90 relative to the English version and therefore Japanese translation met the pre-specified criterion to be designated called an OFFICIAL MDS TRANSLATION. Secondary analyses revealed some differences between the English-language MDS-UPDRS and the Japanese translation, however, these differences were considered to be within an acceptable range. CONCLUSIONS The Japanese version of the MDS-UPDRS met the criterion as an Official MDS Translation and is now available for use (www.movementdisorders.org).
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Hamauzu Y, Mizuno Y. EXTRACTABLE AND NON-EXTRACTABLE PROCYANIDINS ENHANCE A FOOD FUNCTION OF DIETARY FIBER IN CHINESE QUINCE AND QUINCE FRUITS. ACTA ACUST UNITED AC 2014. [DOI: 10.17660/actahortic.2014.1040.16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Ishikawa KI, Motoi Y, Mizuno Y, Kubo SI, Hattori N. Effects of donepezil dose escalation in Parkinson's patients with dementia receiving long-term donepezil treatment: an exploratory study. Psychogeriatrics 2014; 14:93-100. [PMID: 24661498 DOI: 10.1111/psyg.12045] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 01/21/2014] [Accepted: 02/06/2014] [Indexed: 12/01/2022]
Abstract
BACKGROUND The benefits of escalating the dose of donepezil in patients who are already receiving long-term treatment with it have not been well evaluated. Therefore, an exploratory study to assess the effects of donepezil dose escalation in patients with Parkinson's disease with dementia, and specifically on patients receiving long-term treatment with donepezil, was performed. METHODS Patients treated with 5-mg/day donepezil for at least 3 months and having a Mini-Mental State Examination (MMSE) score between 10 and 26 were included in this study. Donepezil dosage was then increased to 10 mg/day for 12 weeks. The outcome measures were a modified form of the Neuropsychiatric Inventory (NPI) with an extra domain for additional evaluation of fluctuation in cognitive functions (NPI-11) and the MMSE. RESULTS Of the nine patients enrolled, two withdrew because of nausea and inability to be assessed on the predetermined date; this left seven participants (four men and three women) with a mean age of 74.6 ± 6.9 years, a mean period of Parkinson's disease of 11.7 ± 7.5 years, and median donepezil use of 7 months (range: 3-56 months). At baseline, the mean total NPI-11 and mean MMSE scores were 18.3 ± 5.6 points and 21.3 ± 5.3 points, respectively. At week 12, they improved by 8.3 points (P < 0.01) and 3.0 points (P = 0.08), respectively, from the baseline. The NPI symptom domains that improved by 1 or more points were hallucination (1.3 points), depression (1.0 points), anxiety (1.6 points), and aberrant motor behaviour (1.7 points). None of the patients withdrew because of worsening of parkinsonism. CONCLUSIONS The present results suggest that treatment with dose escalation of donepezil from 5 mg/day to 10 mg/day may be therapeutically useful for patients with Parkinson's disease with dementia who have taken donepezil 5 mg/day in the long term.
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Hauser RA, Gordon MF, Mizuno Y, Poewe W, Barone P, Schapira AH, Rascol O, Debieuvre C, Fräßdorf M. Minimal clinically important difference in Parkinson's disease as assessed in pivotal trials of pramipexole extended release. PARKINSON'S DISEASE 2014; 2014:467131. [PMID: 24800101 PMCID: PMC3995302 DOI: 10.1155/2014/467131] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 01/28/2014] [Indexed: 11/17/2022]
Abstract
Background. The minimal clinically important difference (MCID) is the smallest change in an outcome measure that is meaningful for patients. Objectives. To calculate the MCID for Unified Parkinson's Disease Rating Scale (UPDRS) scores in early Parkinson's disease (EPD) and for UPDRS scores and "OFF" time in advanced Parkinson's disease (APD). Methods. We analyzed data from two pivotal, double-blind, parallel-group trials of pramipexole ER that included pramipexole immediate release (IR) as an active comparator. We calculated MCID as the mean change in subjects who received active treatment and rated themselves "a little better" on patient global impression of improvement (PGI-I) minus the mean change in subjects who received placebo and rated themselves unchanged. Results. MCIDs in EPD (pramipexole ER, pramipexole IR) for UPDRS II were -1.8 and -2.0, for UPDRS III -6.2 and -6.1, and for UPDRS II + III -8.0 and -8.1. MCIDs in APD for UPDRS II were -1.8 and -2.3, for UPDRS III -5.2 and -6.5, and for UPDRS II + III -7.1 and -8.8. MCID for "OFF" time (pramipexole ER, pramipexole IR) was -1.0 and -1.3 hours. Conclusions. A range of MCIDs is emerging in the PD literature that provides the basis for power calculations and interpretation of clinical trials.
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Nishioka K, Funayama M, Vilariño-Güell C, Ogaki K, Li Y, Sasaki R, Kokubo Y, Kuzuhara S, Kachergus JM, Cobb SA, Takahashi H, Mizuno Y, Farrer MJ, Ross OA, Hattori N. EIF4G1 gene mutations are not a common cause of Parkinson's disease in the Japanese population. Parkinsonism Relat Disord 2014; 20:659-61. [PMID: 24704100 DOI: 10.1016/j.parkreldis.2014.03.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Revised: 02/25/2014] [Accepted: 03/01/2014] [Indexed: 01/04/2023]
Abstract
Pathogenic mutations in the EIF4G1 gene were recently reported as a cause of autosomal dominant parkinsonism. To assess the frequency of EIF4G1 mutations in the Japanese population we sequenced the entire gene coding region (31 exons) in 95 patients with an apparent autosomal dominant inherited form of Parkinson's disease. We detected three novel point mutations located in a poly-glutamic acid repeat within exon 10. These variants were screened through 224 Parkinson's disease cases and 374 normal controls from the Japanese population. We detected the poly-glutamic acid deletion in exon 10 in two additional patients with sporadic Parkinson's disease. Although the EIF4G1 variants identified in the present study were not observed in control subjects, co-segregation analyses and population-based screening data suggest they are not pathogenic. In conclusion, we did not identify novel or previously reported pathogenic mutations (including the p.A502V and p.R1205H mutants) within EIF4G1 in the Japanese population, thus future studies are warranted to elucidate the role of this gene in Parkinson's disease.
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Ishii S, Miyao M, Mizuno Y, Tanaka-Ishikawa M, Akishita M, Ouchi Y. Association between serum uric acid and lumbar spine bone mineral density in peri- and postmenopausal Japanese women. Osteoporos Int 2014; 25:1099-105. [PMID: 24318630 DOI: 10.1007/s00198-013-2571-7] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2013] [Accepted: 08/26/2013] [Indexed: 02/04/2023]
Abstract
SUMMARY Previous studies on the association between uric acid and bone mineral density yielded conflicting results. In this study, we demonstrated positive association between uric acid and lumbar spine bone mineral density in peri- and postmenopausal Japanese women. Further research is needed to elucidate the underlying mechanism. INTRODUCTION Oxidative stress has been implicated in the pathogenesis of osteoporosis. Uric acid, a potent antioxidant substance, has been associated with bone mineral density but previous studies have yielded conflicting results. The objective of the study was to examine the association between serum uric acid and lumbar spine bone mineral density (BMD). METHODS This was a retrospective analysis of medical records of 615 women, aged 45-75 years, who had lumbar spine BMD measurement by dual-energy X-ray absorptiometry as a part of health checkup from August 2011 to July 2012. RESULTS Mean serum uric acid level was 4.7 mg/dL. Serum uric acid level was positively and significantly associated with lumbar spine BMD independent of age, body mass index, smoking, drinking, physical activity, years after menopause, diabetes mellitus, hypertension, serum calcium, estimated glomerular filtration rate, plasma C-reactive protein, and serum alkaline phosphatase (standardized beta = 0.078, p = 0.049). Uric acid rapidly increased until the age of 60 years, and then decelerated but continued to increase thereafter. The association between lumbar spine BMD and uric acid remained significantly positive after excluding women older than 60 years. CONCLUSION The present study showed that higher uric acid levels were linearly associated with higher lumbar spine BMD in peri- and postmenopausal Japanese women. Further research is needed to elucidate the underlying mechanism of the association between uric acid and BMD.
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Nishikawa KI, Hardee P, Mizuno Y, Duţan I, Zhang B, Medvedev M, Choi E, Min KW, Niemiec J, Nordlund Å, Frederiksen J, Sol H, Pohl M, Hartmann DH, Marscher A, Gómez JL. Radiation from accelerated particles in relativistic jets with shocks, shear-flow, and reconnection. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20136102003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mizuno Y, Kurata N, Tsutsuyama M, Umeda S, Teramoto H, Shikano T, Hachisuka T, Mori T, Shinohara M, Miyauchi M. Retrospective Analysis of Efficacy and Optional Treatment with Lapatinib Plus Capecitabine Therapy. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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KAWASAKI M, Mizuno Y, Kitajo K. P 134. Causal and directional information flow from visual to motor areas during resting-state revealed by a TMS-EEG co-registration. Clin Neurophysiol 2013. [DOI: 10.1016/j.clinph.2013.04.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Iwata H, Shirahashi K, Mizuno Y, Matsui M, Takemura H. 085 * THE FEASIBILITY OF SEGMENTAL RESECTION IN LUNG CANCER WITH GROUND GLASS OPACITY. Interact Cardiovasc Thorac Surg 2013. [DOI: 10.1093/icvts/ivt372.85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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