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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, Vinall L, Vinathan J, Visnjic M, Voigt E, von-Eynatten M, Vourvou M, Wada J, Wada J, Wada T, Wada Y, Wakayama K, Wakita Y, Wallendszus K, Walters T, Wan Mohamad WH, Wang L, Wang W, Wang X, Wang X, Wang Y, Wanner C, Wanninayake S, Watada H, Watanabe K, Watanabe K, Watanabe M, Waterfall H, Watkins D, Watson S, Weaving L, Weber B, Webley Y, Webster A, Webster M, Weetman M, Wei W, Weihprecht H, Weiland L, Weinmann-Menke J, Weinreich T, Wendt R, Weng Y, Whalen M, Whalley G, Wheatley R, Wheeler A, Wheeler J, Whelton P, White K, Whitmore B, Whittaker S, Wiebel J, Wiley J, Wilkinson L, Willett M, Williams A, Williams E, Williams K, Williams T, Wilson A, Wilson P, Wincott L, Wines E, Winkelmann B, Winkler M, Winter-Goodwin B, Witczak J, Wittes J, Wittmann M, Wolf G, Wolf L, Wolfling R, Wong C, Wong E, Wong HS, Wong LW, Wong YH, Wonnacott A, Wood A, Wood L, Woodhouse H, Wooding N, Woodman A, Wren K, Wu J, Wu P, Xia S, Xiao H, Xiao X, Xie Y, Xu C, Xu Y, Xue H, Yahaya H, Yalamanchili H, Yamada A, Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Honma A, Takane D, Souma S, Yamauchi K, Wang Y, Nakayama K, Sugawara K, Kitamura M, Horiba K, Kumigashira H, Tanaka K, Kim TK, Cacho C, Oguchi T, Takahashi T, Ando Y, Sato T. Antiferromagnetic topological insulator with selectively gapped Dirac cones. Nat Commun 2023; 14:7396. [PMID: 37978297 PMCID: PMC10656484 DOI: 10.1038/s41467-023-42782-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 10/20/2023] [Indexed: 11/19/2023] Open
Abstract
Antiferromagnetic (AF) topological materials offer a fertile ground to explore a variety of quantum phenomena such as axion magnetoelectric dynamics and chiral Majorana fermions. To realize such intriguing states, it is essential to establish a direct link between electronic states and topology in the AF phase, whereas this has been challenging because of the lack of a suitable materials platform. Here we report the experimental realization of the AF topological-insulator phase in NdBi. By using micro-focused angle-resolved photoemission spectroscopy, we discovered contrasting surface electronic states for two types of AF domains; the surface having the out-of-plane component in the AF-ordering vector displays Dirac-cone states with a gigantic energy gap, whereas the surface parallel to the AF-ordering vector hosts gapless Dirac states despite the time-reversal-symmetry breaking. The present results establish an essential role of combined symmetry to protect massless Dirac fermions under the presence of AF order and widen opportunities to realize exotic phenomena utilizing AF topological materials.
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Affiliation(s)
- A Honma
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - D Takane
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - S Souma
- Center for Science and Innovation in Spintronics (CSIS), Tohoku University, Sendai, 980-8577, Japan.
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan.
| | - K Yamauchi
- Center for Spintronics Research Network (CSRN), Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - Y Wang
- Institute of Physics II, University of Cologne, Köln, 50937, Germany
| | - K Nakayama
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Tokyo, 102-0076, Japan
| | - K Sugawara
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan
| | - M Kitamura
- Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki, 305-0801, Japan
- National Institutes for Quantum Science and Technology (QST), Sendai, 980-8579, Japan
| | - K Horiba
- National Institutes for Quantum Science and Technology (QST), Sendai, 980-8579, Japan
| | - H Kumigashira
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, 980-8577, Japan
| | - K Tanaka
- UVSOR Synchrotron Facility, Institute for Molecular Science, Okazaki, 444-8585, Japan
| | - T K Kim
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0QX, UK
| | - C Cacho
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0QX, UK
| | - T Oguchi
- Center for Spintronics Research Network (CSRN), Osaka University, Toyonaka, Osaka, 560-8531, Japan
| | - T Takahashi
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan
| | - Yoichi Ando
- Institute of Physics II, University of Cologne, Köln, 50937, Germany
| | - T Sato
- Department of Physics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan.
- Center for Science and Innovation in Spintronics (CSIS), Tohoku University, Sendai, 980-8577, Japan.
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, Sendai, 980-8577, Japan.
- International Center for Synchrotron Radiation Innov1ation Smart (SRIS), Tohoku University, Sendai, 980-8577, Japan.
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Mizukami Y, Sugawara K, Tsuruta D. Female pattern hair loss with acromegaly. Clin Exp Dermatol 2020; 46:607-609. [PMID: 33052616 DOI: 10.1111/ced.14460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/31/2020] [Accepted: 08/31/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Y Mizukami
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Sugawara
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - D Tsuruta
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
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Trang CX, Shimamura N, Nakayama K, Souma S, Sugawara K, Watanabe I, Yamauchi K, Oguchi T, Segawa K, Takahashi T, Ando Y, Sato T. Conversion of a conventional superconductor into a topological superconductor by topological proximity effect. Nat Commun 2020; 11:159. [PMID: 31919356 PMCID: PMC6952357 DOI: 10.1038/s41467-019-13946-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 12/10/2019] [Indexed: 12/03/2022] Open
Abstract
Realization of topological superconductors (TSCs) hosting Majorana fermions is a central challenge in condensed-matter physics. One approach is to use the superconducting proximity effect (SPE) in heterostructures, where a topological insulator contacted with a superconductor hosts an effective p-wave pairing by the penetration of Cooper pairs across the interface. However, this approach suffers a difficulty in accessing the topological interface buried deep beneath the surface. Here, we propose an alternative approach to realize topological superconductivity without SPE. In a Pb(111) thin film grown on TlBiSe2, we discover that the Dirac-cone state of substrate TlBiSe2 migrates to the top surface of Pb film and obtains an energy gap below the superconducting transition temperature of Pb. This suggests that a Bardeen-Cooper-Schrieffer superconductor is converted into a TSC by the topological proximity effect. Our discovery opens a route to manipulate topological superconducting properties of materials. Realizing topological superconductivity is essential for applicable fault-tolerant quantum computation. Here, Trang et al. report migration of Dirac-cone from TlBiSe2 substrate to top surface of superconducting Pb film due to topological proximity effect, suggesting realization of topological superconductivity.
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Affiliation(s)
- C X Trang
- Department of Physics, Tohoku University, Sendai, 980-8578, Japan
| | - N Shimamura
- Department of Physics, Tohoku University, Sendai, 980-8578, Japan
| | - K Nakayama
- Department of Physics, Tohoku University, Sendai, 980-8578, Japan.,Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Tokyo, 102-0076, Japan
| | - S Souma
- Center for Spintronics Research Network, Tohoku University, Sendai, 980-8577, Japan.,WPI Research Center, Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan
| | - K Sugawara
- Department of Physics, Tohoku University, Sendai, 980-8578, Japan.,Center for Spintronics Research Network, Tohoku University, Sendai, 980-8577, Japan.,WPI Research Center, Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan
| | - I Watanabe
- Department of Physics, Tohoku University, Sendai, 980-8578, Japan
| | - K Yamauchi
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka, 567-0047, Japan
| | - T Oguchi
- Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka, 567-0047, Japan
| | - K Segawa
- Department of Physics, Kyoto Sangyo University, Kyoto, 603-8555, Japan
| | - T Takahashi
- Department of Physics, Tohoku University, Sendai, 980-8578, Japan.,Center for Spintronics Research Network, Tohoku University, Sendai, 980-8577, Japan.,WPI Research Center, Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan
| | - Yoichi Ando
- Institute of Physics II, University of Cologne, Köln, 50937, Germany
| | - T Sato
- Department of Physics, Tohoku University, Sendai, 980-8578, Japan. .,Center for Spintronics Research Network, Tohoku University, Sendai, 980-8577, Japan. .,WPI Research Center, Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan.
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Utsunomiya A, Chino T, Utsunomiya N, Luong V, Sugai M, Higashi K, Sugawara K, Tsuruta D, Oyama N, Hasegawa M. 348 Homeostatic functions of dermokine in skin barrier and innate immunity. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Okazaki A, Sugawara K, Tsuruta D. 761 The impact of 308-nm excimer laser on human keratinocytes of organ cultured human skin. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Komakura K, Oikawa D, Terawaki S, Sakamoto S, Mizukami Y, Sugawara K, Tsuruta D, Tokunaga F. 459 HOIPIN-1, a novel LUBAC inhibitor, suppresses the imiquimod-induced psoriasis-like skin inflammation in mice. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sugawara K, Igeta E, Amano Y, Hyuga M, Sugano Y. Degradation of antifungal anthraquinone compounds is a probable physiological role of DyP secreted by Bjerkandera adusta. AMB Express 2019; 9:56. [PMID: 31016483 PMCID: PMC6478788 DOI: 10.1186/s13568-019-0779-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 04/16/2019] [Indexed: 11/28/2022] Open
Abstract
Alizarin is an anti-fungal compound produced by the plant, Rubia tinctorum. The parasitic fungus Bjerkandera adusta Dec 1 was cultured in potato dextrose (PD) medium with or without alizarin. Alizarin was a good substrate for the dye-decolorizing peroxidase (DyP) from B. adusta Dec 1 and hampered B. adusta growth at the early stage of plate culture. During liquid shaking culture, DyP activity in cultures supplemented with 100 μM alizarin was greater than that in controls cultured without alizarin. In particular, DyP activity per dry cell mass increased approximately 3.5-, 3.1-, and 2.9-fold at 24, 30, and 36 h after inoculation, respectively, compared with control cultures. These data suggest that alizarin stimulates the expression of DyP. Interestingly, alizarin rapidly decomposed at an early stage in culture (24–42 h) in PD medium supplemented with 100 μM alizarin. Thus, alizarin appears to induce DyP expression in B. adusta Dec 1, and this DyP, in turn, rapidly degrades alizarin. Collectively, our findings suggest that the physiological role of DyP is to degrade antifungal compounds produced by plants.
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10
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Sugawara K, Mori K, Yagi K, Aikou S, Uemura Y, Yamashita H, Seto Y. Association of preoperative inflammation-based prognostic score with survival in patients undergoing salvage esophagectomy. Dis Esophagus 2019; 32:5060212. [PMID: 30535140 DOI: 10.1093/dote/doy066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Salvage esophagectomy (SALV) is potentially beneficial for patients with residual or relapsed esophageal carcinoma after definitive chemoradiotherapy (dCRT), although preoperatively identifying good candidates for SALV remains difficult. We investigated the prognostic impacts of inflammatory and nutritional status in patients undergoing SALV after dCRT. Forty-seven SALV patients were retrospectively reviewed, of whom 46 (98%) had squamous cell carcinoma and 1 (2%) adenocarcinoma. Possible prognostic factors included patients' demographic data, physical status, blood chemistry profiles, and clinical/pathological tumor features. The Glasgow prognostic score (GPS) was derived from preoperative C-reactive protein (CRP) and albumin values. Thirty (64%), 11 (23%), and 6 (13%) patients were classified into the GPS 0, 1, and 2, respectively, groups. None of the possible prognostic factors showed significant correlations with GPS. Patients with GPS 0 had better outcomes than those with GPS 1 or GPS 2 (Median survivals: 37.8, 15.9, and 5.1 months, respectively, P < 0.001). In the multivariable Cox proportional hazards model, GPS 1 (HR 5.62, 95% CI 1.94-16.4, P = 0.002), GPS 2 (HR 9.10, 95% CI 2.60-31.8, P < 0.001), R1/2 resection (HR 16.3, 95% CI 3.62-86.7, P < 0.001) and incomplete response to dCRT (HR 3.53, 95% CI 1.12-12.5, P = 0.03) were all independent risk factors for a poor outcome. Preoperative GPS is potentially useful for predicting outcomes in esophageal cancer patients undergoing SALV.
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Affiliation(s)
- K Sugawara
- Department of Gastrointestinal Surgery, Graduate School of Medicine, the University of Tokyo
| | - K Mori
- Department of Gastrointestinal Surgery, Graduate School of Medicine, the University of Tokyo.,Department of Gastrointestinal Surgery, Mitsui Memorial Hospital, Tokyo, Japan
| | - K Yagi
- Department of Gastrointestinal Surgery, Graduate School of Medicine, the University of Tokyo
| | - S Aikou
- Department of Gastrointestinal Surgery, Graduate School of Medicine, the University of Tokyo
| | - Y Uemura
- Biostatistics Division, Clinical Research Support Center, Graduate School of Medicine, the University of Tokyo
| | - H Yamashita
- Department of Gastrointestinal Surgery, Graduate School of Medicine, the University of Tokyo
| | - Y Seto
- Department of Gastrointestinal Surgery, Graduate School of Medicine, the University of Tokyo
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11
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Endo Y, Ichinokura S, Akiyama R, Takayama A, Sugawara K, Nomura K, Takahashi T, Hasegawa S. Weak localization in bilayer graphene with Li-intercalation/desorption. J Phys Condens Matter 2018; 30:305701. [PMID: 29901452 DOI: 10.1088/1361-648x/aaccc4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We performed in-situ electrical transport measurements for bilayer graphene grown on SiC(0 0 0 1) substrate, Li-intercalated bilayer graphene, and after that desorbing Li atoms by heating. Bilayer graphene after desorbing intercalated Li atoms showed a higher resistivity and different behavior in magnetoconductance compared to pristine bilayer graphene. We observed the weak localization of carriers at low temperatures in all the three samples and analyzed the experimental results with the extended Hikami-Larkin-Nagaoka equation to investigate the transport properties. The result shows that the magnetoconductance of pristine bilayer graphene is described by the AB stacking structure model and the phase breaking scattering is dominated by the electron-electron scattering. The intra-valley scattering occurs most frequently probably due to dopants in SiC substrate. However, in Li-desorbed graphene, the magnetoconductance can be described by neither AB nor AA-stacking model, suggesting the coexistence of domains with several different stacking structures.
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Affiliation(s)
- Y Endo
- Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan
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12
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Mizukami Y, Sugawara K, Tsuruta D. 716 Sorafenib is a new stimulator for human skin-type mast cell degranulation and maturation. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Sugawara K, Mizukami Y, Paus R, Tsuruta D. 646 Dissecting the effects of a stress-related mediator, corticotropin releasing hormone on skin and mucosal type mast cells biology in situ. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Kono M, Fukai K, Omura R, Sugawara K, Tsuruta D, Sugiura K, Akiyama M. A case of epidermolytic ichthyosis showing a very mild phenotype due to a novel tail extension mutation in KRT10. J Eur Acad Dermatol Venereol 2017; 31:e68-e69. [DOI: 10.1111/jdv.13729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. Kono
- Department of Dermatology; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - K. Fukai
- Department of Dermatology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - R. Omura
- Department of Dermatology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - K. Sugawara
- Department of Dermatology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - D. Tsuruta
- Department of Dermatology; Osaka City University Graduate School of Medicine; Osaka Japan
| | - K. Sugiura
- Department of Dermatology; Nagoya University Graduate School of Medicine; Nagoya Japan
| | - M. Akiyama
- Department of Dermatology; Nagoya University Graduate School of Medicine; Nagoya Japan
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Sugawara K, Nishihashi Y, Narioka T, Yoshida T, Morita M, Sugano Y. Characterization of a novel DyP-type peroxidase from Streptomyces avermitilis. J Biosci Bioeng 2017; 123:425-430. [PMID: 28089379 DOI: 10.1016/j.jbiosc.2016.12.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 12/01/2016] [Indexed: 01/20/2023]
Abstract
DyP-type peroxidases are a heme peroxidase family with unique properties whose members are widely distributed from prokaryotes to eukaryotes. DyP-type peroxidases are subdivided into class P, I and V based on structure-based sequence alignment. Class V enzymes possess degradation activities for anthraquinone dyes, and include extra sequences compared with class P and I. Class V enzymes are mainly found in fungi, with only two such proteins, AnaPX and DyP2, reported in bacteria. Here, we heterologously expressed, purified and biochemically characterized SaDyP2 protein, predicted to belong to class V. SaDyP2 was purified as a ∼50 kDa enzyme containing a heme cofactor and was found to oxidize the typical peroxidase substrates, ABTS and DMP. SaDyP2 was generally thermostable and exhibited a lower optimal pH, a feature typical of DyP-type peroxidases. It also degraded anthraquinone dyes, a specific substrate of DyP-type peroxidases, although the kcat for SaDyP2 was lower than that for other class V enzymes. The Km value of SaDyP2 for anthraquinone dye was similar to that of other enzymes of this class. Homology modeling revealed that the structure of SaDyP2 best fit that of class V enzymes.
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Affiliation(s)
- Kanako Sugawara
- Department of Chemical and Biological Sciences, Faculty of Science, Japan Women's University, 2-8-1 Mejirodai, Bunkyo-Ku, Tokyo 112-8681, Japan
| | - Yuriko Nishihashi
- Department of Chemical and Biological Sciences, Faculty of Science, Japan Women's University, 2-8-1 Mejirodai, Bunkyo-Ku, Tokyo 112-8681, Japan
| | - Tomomi Narioka
- Department of Chemical and Biological Sciences, Faculty of Science, Japan Women's University, 2-8-1 Mejirodai, Bunkyo-Ku, Tokyo 112-8681, Japan
| | - Toru Yoshida
- Department of Bioresource and Environmental Sciences, Faculty of Life Sciences, Kyoto Sangyo University, Kamigamo-Motoyama, Kyoto 603-8555, Japan
| | - Mifumi Morita
- Environmental Chemistry and Engineering, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Yasushi Sugano
- Department of Chemical and Biological Sciences, Faculty of Science, Japan Women's University, 2-8-1 Mejirodai, Bunkyo-Ku, Tokyo 112-8681, Japan.
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Kleeman J, Sugawara K, Sato T, Takahashi T. Enhancement of electron-phonon coupling in Cs-overlayered intercalated bilayer graphene. J Phys Condens Matter 2016; 28:204001. [PMID: 27094681 DOI: 10.1088/0953-8984/28/20/204001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We have performed high-resolution angle-resolved photoemission spectroscopy (ARPES) on cesium (Cs) intercalated bilayer graphene with a Cs overlayer (Cs-C8CsC8). Low-energy electron diffraction shows a (2 × 2) pattern consistent with intercalation of a Cs layer similar to bulk C8Cs, in addition to the signature of a nearly commensurate superstructure created by the Cs overlayer. ARPES results reveal folding of the π bands due to the periodic (2 × 2) potential of the intercalated Cs atoms, together with a free-electron-like state at the [Formula: see text] point. Significant mass renormalization is observed in the band dispersion near the Fermi level, indicative of strong electron-phonon coupling. Based on analysis of the self-energy, we find anisotropic electron-phonon coupling with an estimated strength of [Formula: see text] ± 0.02 in the K-[Formula: see text] direction, and [Formula: see text] in the K-M direction. This coupling is much larger than that of other doped graphenes, and comparable to superconducting bulk GICs. We attribute this large electron-phonon coupling constant to the presence of the Cs overlayer, which highly dopes [Formula: see text] bands, and creates a structure similar to stage-I graphite intercalation compounds.
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Affiliation(s)
- J Kleeman
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
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Peled A, Sarig O, Samuelov L, Bertolini M, Ziv L, Weissglas-Volkov D, Eskin-Schwartz M, Adase C, Malchin N, Bochner R, Fainberg G, Sugawara K, Baniel A, Tsuruta D, Luxemburg C, Adir N, Goldberg I, Gallo R, Shomron N, Paus R, Sprecher E. 414 A new form of ectodermal dysplasia caused by mutations in TSPEAR. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Sugawara K, Natsumi A, Yasumizu M, Mizukami Y, Yonamine A, Paus R, Tsuruta D. 438 Laminin-511 is a new player in the development of psoriasis and controlled via cannabinoid receptor type 1. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Honma K, Sato T, Souma S, Sugawara K, Tanaka Y, Takahashi T. Switching of Dirac-Fermion Mass at the Interface of Ultrathin Ferromagnet and Rashba Metal. Phys Rev Lett 2015; 115:266401. [PMID: 26765009 DOI: 10.1103/physrevlett.115.266401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Indexed: 06/05/2023]
Abstract
We have performed spin- and angle-resolved photoemission spectroscopy on tungsten (110) interfaced with an ultrathin iron (Fe) layer to study an influence of ferromagnetism on the Dirac-cone-like surface-interface states. We found an unexpectedly large energy gap of 340 meV at the Dirac point, and have succeeded in switching the Dirac-fermion mass by controlling the direction of Fe spins (in plane or out of plane) through tuning the thickness of the Fe overlayer or adsorbing oxygen on it. Such a manipulation of Dirac-fermion mass via the magnetic proximity effect opens a promising platform for realizing new spintronic devices utilizing a combination of exchange and Rashba-spin-orbit interactions.
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Affiliation(s)
- K Honma
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - T Sato
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - S Souma
- WPI Research Center, Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - K Sugawara
- WPI Research Center, Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - Y Tanaka
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - T Takahashi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
- WPI Research Center, Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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Sugawara K, Ikaga T, Kim K, Ohkoshi Y, Okada K, Masunaga H, Kanaya T, Masuda M, Maeda Y. Fiber structure development in PS/PET sea-island conjugated fiber during continuous laser drawing. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.10.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Tamaki H, Yotani K, Ogita F, Sugawara K, Kirimto H, Onishi H, Kasuga N, Yamamoto N. Effect of electrical stimulation-induced muscle force and streptomycin treatment on muscle and trabecular bone mass in early-stage disuse musculoskeletal atrophy. J Musculoskelet Neuronal Interact 2015; 15:270-8. [PMID: 26350946 PMCID: PMC5601240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
OBJECTIVES The aim was to determine whether daily muscle electrical stimulation (ES) and streptomycin treatment would have positive or negative effects on trabecular bone mass in disuse rats. METHODS Seven-week-old male F344 rats were randomly divided into five groups of eight animals each: an age-matched control group (CON); a sciatic denervation group (DN); a DN + direct electrical stimulation group (DN+ES); a DN + streptomycin treatment group (DN+SM); and a DN+ES+SM group. The tibialis anterior (TA) muscles in all ES groups were stimulated with 16mA at 10Hz for 30 min/day, six days/week, for one week. Bone volume and structure were evaluated using micro-CT, and histological examinations of the tibiae were performed. RESULTS Direct ES significantly reduced the disuse-induced trabecular bone loss. Osteoid thickness were also significantly greater in the ES groups than in the DN group. Micro CT and histomorphological parameters were significantly lower in the DN+ES+SM group than in the DN+ES group, while there were no significant differences between the DN and DN+SM groups. CONCLUSIONS These results suggest that ES-induced muscle force reduced trabecular bone loss, and streptomycin treatment did not induce bone loss, but attenuated the effects of ES-induced muscle force on reducing the loss of disused bone.
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Affiliation(s)
- H. Tamaki
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Japan,Corresponding author: Hiroyuki Tamaki Ph.D., Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, 1398 Shimami, Kita-ku, Niigata, 950-3198, Japan E-mail:
| | - K. Yotani
- National Institute of Fitness and Sports in Kanoya, Japan
| | - F. Ogita
- National Institute of Fitness and Sports in Kanoya, Japan
| | - K. Sugawara
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Japan
| | - H. Kirimto
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Japan
| | - H. Onishi
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Japan
| | - N. Kasuga
- Department of Physical Education, Aichi University of Education, Japan
| | - N. Yamamoto
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Japan,Niigata Rehabilitation Hospital, Japan
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Miyata Y, Nakayama K, Sugawara K, Sato T, Takahashi T. High-temperature superconductivity in potassium-coated multilayer FeSe thin films. Nat Mater 2015; 14:775-779. [PMID: 26030306 DOI: 10.1038/nmat4302] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 04/21/2015] [Indexed: 06/04/2023]
Abstract
The recent discovery of possible high-temperature (T(c)) superconductivity over 65 K in a monolayer FeSe film on SrTiO3 (refs 1-6) triggered a fierce debate on how superconductivity evolves from bulk to film, because bulk FeSe crystal exhibits a T(c) of no higher than 10 K (ref. 7). However, the difficulty in controlling the carrier density and the number of FeSe layers has hindered elucidation of this problem. Here, we demonstrate that deposition of potassium onto FeSe films markedly expands the accessible doping range towards the heavily electron-doped region. Intriguingly, we have succeeded in converting non-superconducting films with various thicknesses into superconductors with T(c) as high as 48 K. We also found a marked increase in the magnitude of the superconducting gap on decreasing the FeSe film thickness, indicating that the interface plays a crucial role in realizing the high-temperature superconductivity. The results presented provide a new strategy to enhance and optimize T(c) in ultrathin films of iron-based superconductors.
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Affiliation(s)
- Y Miyata
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - K Nakayama
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - K Sugawara
- WPI Research Center, Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
| | - T Sato
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - T Takahashi
- 1] Department of Physics, Tohoku University, Sendai 980-8578, Japan [2] WPI Research Center, Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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Osato T, Yamamoto K, Mizuno F, Sugawara K, Aya T. Dual persistence of Epstein-Barr viral and type-C viral genomes in nonproducer human lymphoblastoid cells. Bibl Haematol 2015:585-8. [PMID: 169826 DOI: 10.1159/000397576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Kirimoto H, Tamaki H, Matusmoto T, Sugawara K, Onishi H. Modulation of somatosensory evoked potentials after transcranial static magnetic field stimulation over human motor cortex. Brain Stimul 2015. [DOI: 10.1016/j.brs.2015.01.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Tsukiboshi T, Sugawara K, Masunaka A. First Report of Pythium Root and Stalk Rot of Forage Corn Caused by Pythium arrhenomanes in Japan. Plant Dis 2014; 98:1155. [PMID: 30708822 DOI: 10.1094/pdis-01-14-0059-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Corn (Zea mays L.) is the most important forage crop in Japan. It was cultivated on 92,000 ha in 2011 and was mainly used as whole crop silage for cattle feed. In September 2009, a root and stalk rot disease was detected on corn plants cultivated in Tochigi, located in the central region of Japan. The symptoms of the disease included wilting of whole plants after the R5 (dent) stage (2) with drooping ears. Roots turned black and their number decreased. Further, the stalks became hollow and soft and harbored white hyphae. This tissue deterioration made machine harvest difficult. We obtained seven isolates of a Pythium-like organism by single hypha isolation from surface-sterilized pieces of diseased roots and stems on water agar and deposited one of the isolates at the NIAS genebank, Japan, under the accession no. MAFF511547. The isolate was grown in the dark on V8 juice agar medium for 10 days to produce oogonia. The oogonia were globose, light brown to yellow, smooth, 23.9 to 30.5 μm in size, and had 1 to 8 antheridia. Oospores were mostly plerotic, and oogonia walls were 1.3 to 2.7 μm thick. The morphology of the isolates was similar to that of Pythium arrhenomanes Drechsler and consistent with the species description (3). We analyzed the rDNA-ITS region sequences of the isolate as described by Kageyama et al. (1). The sequence (GenBank Accession No. AB903904) showed 99.1% (783/790 bp) similarity with that of P. arrhenomanes (AY598628). On the basis of morphological and rDNA sequence similarities, we identified the isolates obtained from corn as P. arrhenomanes. The pathogenicity of the isolate was confirmed by planting corn seedlings of the commercial Pioneer Brand hybrid 36B08 immediately after germination in five replicate pots containing soil mixed with 5% boiled barley grain by weight, incubated with or without the isolate for 7 days. After 10 days of incubation in a greenhouse at 20 to 25°C, only the inoculated plants exhibited symptoms of root and stalk rot. Since the inoculated organism was readily re-isolated from the diseased stems and roots, the pathogenicity of the isolate was confirmed. For field observation, the same hybrid of forage corn was sown in the fields in Nasushiobara, Tochigi, on 16 May 2011. The hybrid was sown in a row of 2 m, with 20 seeds planted at a distance of 10 cm with two replicates. For inoculum, the isolate was cultured on 5-cm-long wooden toothpicks, previously soaked in potato dextrose broth and placed on a V8 agar plate for 7 days at 25°C in the dark until covered by hyphae. The toothpicks were pierced into wounds made on the stems of corn plants, approximately 10 cm above the ground, using a thin iron needle. The wounds were about 2 mm in diameter and 2 cm deep. Field inoculation was conducted in late July at the R1 (silking) growth stage. Disease symptoms were observed in mid-September at R5, and only those plants that were inoculated with the toothpicks harboring the hyphae exhibited the typical stem rot symptoms. To our knowledge, this is the first report of root and stalk rot caused by P. arrhenomanes in forage corn in Japan. References: (1) K. Kageyama et al. J. Phytopathol. 151:485, 2003. (2) S. W. Ritchie et al. Spec. Rep. 48. Iowa State Univ. Coop Ext. Serv., Ames, 1993. (3) A. J. Van der Plaats-Niterink. Stud. Mycol. 21:1, 1981.
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Affiliation(s)
- T Tsukiboshi
- NARO Institute of Livestock and Grassland Science
| | - K Sugawara
- NARO Tohoku Agricultural Research Center
| | - A Masunaka
- NARO Institute of Livestock and Grassland Science
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Yamashiro K, Sato D, Onishi H, Sugawara K, Kameyama S, Maruyama A. P511: Effect of changes in stimulation sites on activation of posterior parietal cortex. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50609-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tamaki H, Tomori K, Yotani K, Ogita F, Sugawara K, Kirimto H, Onishi H, Yamamoto N, Kasuga N. Electrical stimulation of denervated rat skeletal muscle retards trabecular bone loss in early stages of disuse musculoskeletal atrophy. J Musculoskelet Neuronal Interact 2014; 14:220-228. [PMID: 24879026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVES We aimed to determine the intensity of muscle stimulation required to prevent structural failure as well as bone and skeletal muscle loss after denervation-induced disuse. METHODS Seven-week-old rats (weight, 198-225 g) were randomly assigned to age-matched groups comprising control (CON), sciatic nerve denervation (DN) or direct electrical stimulation (ES) one day later [after denervation] with 4, 8 and 16 mA at 10 Hz for 30 min/day, six days/week, for one or three weeks. Bone architecture and mean osteoid thickness in histologically stained tibial sections and tension in tibialis anterior muscles were assessed at one and three weeks after denervation. RESULTS Direct ES with 16 mA generated 23-30% maximal contraction force. Denervation significantly decreased trabecular bone volume fraction, thickness and number, connectivity density and increased trabecular separation in the DN group at weeks one and three. Osteoid thickness was significantly greater in the ES16 group at week one than in the DN and other ES groups. Trabecular bone volume significantly correlated with muscle weight. CONCLUSIONS Relatively low-level muscle contraction induced by low-frequency, high-intensity electrical muscle stimulation delayed trabecular bone loss during the early stages (one week after DN) of musculoskeletal atrophy due to disuse.
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Affiliation(s)
- H Tamaki
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Japan
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Matsumoto T, Kirimoto H, Miyaguchi S, Sugawara K, Tamaki H, Onishi H, Oyama M. P687: Effects of goal-directed finger movement on intracortical inhibition circuits in the ipsilateral primary motor cortex. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50781-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tsubaki A, Takai H, Kojima S, Miyaguchi S, Sugawara K, Sato D, Tamaki H, Onishi H. P882: Changes in oxyhaemoglobin signal during cycle ergometer activity at moderate intensity: a near-infrared spectroscopy study. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50917-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kirimoto H, Tamaki H, Matsumoto T, Sugawara K, Onishi H. P654: Effect of transcranial static magnetic field stimulation over the sensorimotor cortex on somatosensory evoked potentials in human. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50748-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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31
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Sugawara K, Sun W, Wach T, Wanner J. Two-Dimensional Imaging of Reactively Desorbing CuF: State-Selective Angular and Velocity Distributions. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/bbpc.199500085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Zhang Z, Sugawara K, Hatayama M, Huang Y, Inoue C. Screening of As-accumulating plants using a foliar application and a native accumulation of As. Int J Phytoremediation 2014; 16:257-266. [PMID: 24912222 DOI: 10.1080/15226514.2013.773277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The discovery of novel accumulating plants is useful for efficient phytoremediation due to the demands of various conditions of impacted sites such as land use, soil properties, concentration of pollutants, and climate. In the present study, we investigated foliar application or a field with highly bioavailable arsenic (As) to screen As-accumulating plants. Plants grown in the downstream of a hot springs area were analyzed for native As accumulation and As foliar application, and the rhizosphere soils were collected. The water-soluble As in the rhizosphere soils had a high average, 144 microg/kg, whereas total As was similar to normal soil in Japan. Among 34 herbaceous plants and 17 woody plants, Chelidonium majus var. asiaticum accumulated a relatively high As level, 8.07 mg/kg DW (93.6% of As added), that was not revealed by native accumulation. In a further pot experiment, C. majus accumulated a moderately high As level (314 mg/kg DW) in the roots but not in the shoot (30.1 mg/kg DW), and exhibited a low transfer factor (TF = 0.096). Thus, a foliar application would be a simple and high-throughput method to screen plants that accumulate and tolerate As. C. majus would be useful as a tool for phytostabilization of As.
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Fujikawa M, Ohsakaya S, Sugawara K, Yoshida M. Population of ATP synthase molecules in mitochondria is limited by available 6.8-kDa proteolipid protein (MLQ). Genes Cells 2013; 19:153-60. [DOI: 10.1111/gtc.12121] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Accepted: 11/01/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Makoto Fujikawa
- JST ICORP ATP-Synthesis Regulation Project; 2-3-6 Aomi Koto-ku Tokyo 135-0064 Japan
- Department of Biochemistry; Faculty of Pharmaceutical Science; Tokyo University of Science; 2641 Yamazaki Noda 278-8510 Japan
| | - Shigenori Ohsakaya
- Chemical Resources Laboratory; Tokyo Institute of Technology; Nagatsuta 4259-R1-8 Midori-ku Yokohama 226-8503 Japan
| | - Kanako Sugawara
- JST ICORP ATP-Synthesis Regulation Project; 2-3-6 Aomi Koto-ku Tokyo 135-0064 Japan
- Department of Molecular Bioscience; Kyoto Sangyo University; Kamigamo-Motoyama Sakyo-ku Kyoto 603-8555 Japan
| | - Masasuke Yoshida
- JST ICORP ATP-Synthesis Regulation Project; 2-3-6 Aomi Koto-ku Tokyo 135-0064 Japan
- Department of Molecular Bioscience; Kyoto Sangyo University; Kamigamo-Motoyama Sakyo-ku Kyoto 603-8555 Japan
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Sugawara K, Fujikawa M, Yoshida M. Screening of protein kinase inhibitors and knockdown experiments identified four kinases that affect mitochondrial ATP synthesis activity. FEBS Lett 2013; 587:3843-7. [PMID: 24157360 DOI: 10.1016/j.febslet.2013.10.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2013] [Accepted: 10/10/2013] [Indexed: 01/23/2023]
Abstract
Mitochondrial ATP synthase, a major ATP supplier in respiring cells, should be regulated in amount and in activity to respond to the varying demands of cells for ATP. We screened 80 protein kinase inhibitors and found that HeLa cells treated with four inhibitors exhibited reduced mitochondrial ATP synthesis activity. Consistently, knockdown of their target kinases (PKA, PKCδ, CaMKII and smMLCK) resulted in a decrease in mitochondrial ATP synthesis activity. Among them, mitochondria of smMLCK-knockdown cells contained only a small amount of ATP synthase, while the α- and β-subunits of ATP synthase were produced normally, suggesting that smMLCK affects assembly (or decay) of ATP synthase.
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Affiliation(s)
- Kanako Sugawara
- International Cooperative Research Project (ICORP), ATP Synthesis Regulation Project, Japan Science and Technology Agency, Aomi 2-3-6, Tokyo 135-0064, Japan; Department of Molecular Bioscience, Kyoto Sangyo University, Kamigamo-Motoyama, Kyoto 603-8555, Japan
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Tsubaki A, Kojima S, Sugawara K, Miyaguchi S, Sato D, Tamaki H, Onishi H. Relationship of oxyhaemoglobin signal with blood pressure or skin blood flow during cycle exercise at different intensities: An NIRS study. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.2189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sugawara K, Onishi H, Yamashiro K, Kojima S, Miyaguchi S, Tsubaki A, Suzuki M, Kirimoto H, Tamaki H, Murakami H, Kameyama S. The effect of anodal transcranial/INS; direct current stimulation to the sensorimotor cortex on somatosensory evoked magnetic fields. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Toda M, Morimoto K, Nakamura S, Umeda T, Nakaji S, Sugawara K. The unique correlation between anti-mutagenicity of human saliva and change in body weight. Environ Health Prev Med 2012; 6:82-7. [PMID: 21432241 DOI: 10.1007/bf02897950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2000] [Accepted: 01/06/2001] [Indexed: 11/30/2022] Open
Abstract
The purpose of this study was to investigate the effect of weight reduction on the anti-mutagenicity of human saliva. Subjects were 16 male college judo players. The anti-mutagenicity of the saliva was measured using the umu test. There was an inhibiting effect of the saliva on the mutagenicity of AF-2. However, a modifying effect of the saliva on Trp-P-1 was not observed. On the day before a competition and 7 days after the competition, the inhibiting capacity of the saliva for the mutagenicity of AF-2 decreased and increased in two non-weight reduction and two weight reduction groups, respectively.However, on the day before the competition, the changed body weights (r=-0.77, p<0.01) and BMI (r=-0.77, p<0.01) were significantly correlated with that of the inhibiting capacity of the saliva for the mutagenicity of AF-2. In addition, the BMI at 20 days before the competition was not significantly but markedly correlated with it (r=0.50, p=0.057). At 7 days after the competition, however, these correlations were not found.These findings suggest a unique correlation between the anti-mutagenicity of human saliva and body weight or BMI.
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Affiliation(s)
- M Toda
- Department of Social and Environmental Medicine, Osaka University Graduate School of Medicine, 2-2 Yamada-Oka, 565-0871, Suita, Osaka, Japan
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Kurakake S, Umeda T, Nakaji S, Sugawara K, Saito K, Yamamoto Y. Changes in physical characteristics, hematological parameters and nutrients and food intake during weight reduction in judoists. Environ Health Prev Med 2012; 3:152-7. [PMID: 21432495 DOI: 10.1007/bf02931706] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/1997] [Accepted: 07/08/1998] [Indexed: 10/21/2022] Open
Abstract
We studied changes in physical characteristics: body composition; muscle and physical strength; hematological parameters; and nutrients and food intake in 22 male college judoists who were losing weight purposefully. Nutritional parameters in blood, such as triglycerides, decreased immediately before matches and rebounded after matches. Free fatty acid increased before matches and returned to previous levels 10 days after matches. IgM and complements decreased before matches and did not return to previous levels even 10 days after matches. These changes were noted in the marked weight reduction group (weight lost / body weight before weight reduction, weight reduction rate≥6%). In contrast, creatine kinase increased before matches in the slight and moderate weight reduction groups (weight reduction rate< 3%, 3≤and<6%, respectively). The marked weight reduction group showed no changes in creatine kinase, however, indicating inadequate exercise due to excessive weight reduction. Muscle strength (grip) and nutrients and food intake decreased significantly before matches. These changes were noted in the marked weight reduction group. These findings suggested that a weight reduction rate of 6% or more adversely affected the performance and health of the judoist.
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Affiliation(s)
- S Kurakake
- Department of Health and Physical Education, Oita Medical University, Oita
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Shiraishi M, Suzuki K, Abe T, Kikuchi T, Satoh H, Nakaji S, Sugawara K. Diurnal variation in neutrophil function. Environ Health Prev Med 2012; 1:65-70. [PMID: 21432424 DOI: 10.1007/bf02931192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/1995] [Accepted: 01/16/1996] [Indexed: 11/25/2022] Open
Abstract
Neutrophil functions, including chemotaxis, reactive oxygen species (ROS)-producing capacity of neutrophils, and serum opsonic activity were investigated in 9 young healthy male volunteers. Venous blood of these volunteers was obtained under standardized conditions at 4-h intervals over a 24-h span. Neutrophil chemotaxis was evaluated by a modified Boyden technique, ROS-producing capacity of neutrophils and serum opsonic activity were measured by a simultaneous multiple measurement system based on luminol-dependent chemiluminescence and indicated by peak height and peak time. ROS-producing capacity of neutrophils and serum opsonic activity were activated in the daytime, and decreased from night to morning. There were negative correlations between the peak time of the luminol-dependent chemiluminescent response, neutrophil number (p<0.01) and segmented neutrophil number (p>0.01). On the other hand, no significant correlations were noted between serum opsonic activity and IgG, IgA, IgM, C3 or C4. In contrast, the peaks of neutrophil chemotaxis were at the wake-up time (6:00a.m.) and in the evening (6:00p.m.). This study indicates that diurnal variation of neutrophil function exists.
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Affiliation(s)
- M Shiraishi
- Department of Hygiene, Hirosaki University School of Medicine, 5 Zaifu-cho, 036, Hirosaki, Japan
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Furia GU, Kostelijk EH, Vergouw CG, Lee H, Lee S, Park D, Kang H, Lim C, Yang K, Lee S, Lim C, Park Y, Shin M, Yang K, Lee H, Beyhan Z, Fisch JD, Sher G, Keskintepe L, VerMilyea MD, Anthony JT, Graham JR, Tucker MJ, Tucker MJ, Freour T, Lattes S, Lammers J, Mansour W, Jean M, Barriere P, El Danasouri I, Gagsteiger F, Rinaldi L, Selman H, Antonova I, Milachich T, Valkova L, Shterev A, Barcroft J, Dayoub N, Thong J, Abdel Reda H, Khalaf Y, El Touky T, Cabry R, Brzakowski R, Lourdel E, Brasseur F, Copin H, Merviel P, Yamada M, Takanashi K, Hamatani T, Akutsu H, Fukunaga T, Inoue O, Ogawa S, Sugawara K, Okumura N, Chikazawa N, Kuji N, Umezawa A, Tomita M, Yoshimura Y, Van der Jeught M, Ghimire S, O'Leary T, Lierman S, Deforce D, Chuva de Sousa Lopes S, Heindryckx B, De Sutter P, Herrero J, Tejera A, De los Santos MJ, Castello D, Romero JL, Meseguer M, Barriere P, Lammers J, Lattes S, Leperlier F, Mirallie S, Jean M, Freour T, Schats R, Al-Nofal M, Vergouw CG, Lens JW, Rooth H, Kostelijk EH, Hompes PG, Lambalk CB, Hreinsson J, Karlstrom PO, Wanggren K, Lundqvist M, Vahabi Z, Eftekhari-Yazdi P, Dalman A, Ebrahimi B, Daneshzadeh MT, Rajabpour Niknam M, Choi EG, Rho YH, Oh DS, Park LS, Cheon HS, Lee CS, Kong IK, Lee SC, Liebenthron J, Montag M, Koster M, Toth B, Reinsberg J, van der Ven H, Strowitzki T, Morita H, Hirosawa T, Watanabe S, Wada T, Kamihata M, Kuwahata A, Ochi M, Horiuchi T, Fatemeh H, Eftekhari-Yazdi P, Karimian L, Fazel M, Fouladi H, Johansson L, Ruttanajit T, Chanchamroen S, Sopaboon P, Seweewanlop S, Sawakwongpra K, Jindasri P, Jantanalapruek T, Charoonchip K, Vajta G, Quangkananurug W, Yi G, Jo JW, Jee BC, Suh CS, Kim SH, Zhang Y, Zhao HJ, Cui YG, Gao C, Gao LL, Liu JY, Sozen E, Buluc B, Vicdan K, Akarsu C, Tuncay G, Hambiliki F, Bungum M, Agapitou K, Makrakis E, Liarmakopoulou S, Anagnostopoulou C, Moustakarias T, Giannaris D, Wang J, Andonov M, Linara E, Charleson C, Ahuja KK, Ozsoy S, Morris MB, Day ML, Cobo A, Castello D, Viloria T, Campos P, Vallejo B, Remohi J, Roldan M, Perez-Cano I, Cruz M, Martinez M, Gadea B, Munoz M, Garrido N, Meseguer M, Mesut N, Ciray HN, Mesut A, Isler A, Bahceci M, Munoz M, Fortuno S, Legidos V, Muela L, Roldan M, Galindo N, Cruz M, Meseguer M, Gunasheela S, Gunasheela D, Ueno S, Uchiyama K, Kondo M, Ito M, Kato K, Takehara Y, Kato O, Edgar DH, Krapez JA, Bacer Kermavner L, Virant-Klun I, Pinter B, Tomazevic T, Vrtacnik-Bokal E, Lee SG, Kang SM, Lee SW, Jeong HJ, Lee YC, Lim JH, Bochev I, Valkova L, Kyurkchiev S, Shterev A, Wilding M, Coppola G, Di Matteo L, Dale B, Hormann-Kropfl M, Kastelic D, Montag M, Schenk M, Fourati Ben Mustapha S, Khrouf M, Braham M, Kallel L, Elloumi H, Merdassi G, Chaker A, Ben Meftah M, Zhioua F, Zhioua A, Kocent J, Neri QV, Rosenwaks Z, Palermo GD, Best L, Campbell A, Fishel S, Calimlioglu N, Sahin G, Akdogan A, Susamci T, Bilgin M, Goker ENT, Tavmergen E, Cantatore C, Ding J, Depalo R, Smith GD, Kasapi E, Panagiotidis Y, Papatheodorou A, Goudakou M, Pasadaki T, Nikolettos N, Asimakopoulos B, Prapas Y, Soydan E, Gulebenzer G, Karatekelioglu E, Budak E, Pehlivan Budak T, Alegretti J, Cuzzi J, Negrao PM, Moraes MP, Bueno MB, Serafini P, Motta ELA, Elaimi A, Harper JC, Stecher A, Baborova P, Wirleitner B, Schwerda D, Vanderzwalmen P, Zech NH, Stanic P, Hlavati V, Gelo N, Pavicic-Baldani D, Sprem-Goldstajn M, Radakovic B, Kasum M, Strelec M, Simunic V, Vrcic H, Khan I, Urich M, Abozaid T, Ullah K, Abuzeid M, Fakih M, Shamma N, Ayers J, Ashraf M, Milik S, Pirkevi C, Atayurt Z, Yazici S, Yelke H, Kahraman S, Dal Canto M, Coticchio G, Brambillasca F, Mignini Renzini M, Novara P, Maragno L, Karagouga G, De Ponti E, Fadini R, Resta S, Magli MC, Cavallini G, Muzzonigro F, Ferraretti AP, Gianaroli L, Barberi M, Orlando G, Sciajno R, Serrao L, Fava L, Preti S, Bonu MA, Borini A, Varras M, Polonifi A, Mantzourani M, Mavrogianni D, Stefanidis K, Griva T, Bletsa R, Dinopoulou V, Drakakis P, Loutradis D, Campbell A, Hickman CFL, Duffy S, Bowman N, Gardner K, Fishel S, Sati L, Zeiss C, Demir R, McGrath J, Yelke H, Atayurt Z, Yildiz S, Unal S, Kumtepe Y, Kahraman S, Atayurt Z, Yelke H, Unal S, Kumtepe Y, Kahraman S, Aljaser F, Hernandez J, Tomlinson M, Campbell B, Fosas N, Redondo Ania M, Marina F, Molfino F, Martin P, Perez N, Carrasco A, Garcia N, Gonzalez S, Marina S, Redondo Ania M, Marina F, Molfino F, Fosas N, Martin P, Perez N, Carrasco A, Garcia N, Gonzalez S, Marina S, Scaruffi P, Stigliani S, Tonini GP, Venturini PL, Anserini P, Guglielmo MC, Coticchio G, Albertini DF, Dal Canto M, Brambillasca F, Lain M, Caliari I, Mignini Renzini M, Fadini R, Oikonomou Z, Chatzimeletiou K, Sioga A, Oikonomou L, Kolibianakis E, Tarlatzis B, Nottola SA, Bianchi V, Lorenzo C, Maione M, Macchiarelli G, Borini A, Gomez E, Gil MA, Sanchez-Osorio J, Maside C, Martinez MJ, Torres I, Rodenas C, Cuello C, Parrilla I, Molina G, Garcia A, Margineda J, Navarro S, Roca J, Martinez EA, Avcil F, Ozden H, Candan ZN, Uslu H, Karaman Y, Gioacchini G, Giorgini E, Carnevali O, Bianchi V, Ferraris P, Vaccari L, Borini A, Choe S, Tae J, Kim C, Lee J, Hwang D, Kim K, Suh C, Jee B, Ozden H, Candan ZN, Avcil F, Uslu H, Karaman Y, Catt SL, Sorenson H, Vela M, Duric V, Chen P, Temple-Smith PD, Pangestu M, Yoshimura T, Fukunaga N, Nagai R, Kitasaka H, Tamura F, Hasegawa N, Kato M, Nakayama K, Takeuchi M, Aoyagi N, Yasue K, Watanabe H, Asano E, Hashiba Y, Asada Y, Iwata K, Yumoto K, Mizoguchi C, Sargent H, Kai Y, Ueda M, Tsuchie Y, Imajo A, Iba Y, Mio Y, Els-Smit CL, Botha MH, Sousa M, Windt-De Beer M, Kruger TF, Muller N, Magli C, Corani G, Giusti A, Castelletti E, Gambardella L, Gianaroli L, Seshadri S, Sunkara SK, El-Toukhy T, Kishi I, Maruyama T, Ohishi M, Akiba Y, Asada H, Konishi Y, Nakano M, Kamei K, Yoshimura Y, Lee JH, Lee KH, Park IH, Sun HG, Kim SG, Kim YY, Choi EM, Lee DH, Chavez SL, Loewke KE, Behr B, Han J, Moussavi F, Reijo Pera RA, Yokota H, Yokota Y, Yokota M, Sato S, Nakagawa M, Sato M, Anazawa I, Araki Y, Virant-Klun I, Knez K, Pozlep B, Tomazevic T, Vrtacnik-Bokal E, Lim JH, Vermilyea MD, Graham JR, Levy MJ, Tucker MJ, Carvalho M, Cordeiro I, Leal F, Aguiar A, Nunes J, Rodrigues C, Soares AP, Sousa S, Calhaz-Jorge C, Braga DPAF, Setti AS, Figueira RCS, Aoki T, Iaconelli A, Borges E, Ozkavukcu S, Sonmezer M, Atabekoglu C, Berker B, Ozmen B, Isbacar S, Ibis E, Menezes J, Lalitkumar PGL, Borg P, Ekwurtzel E, Nordqvist S, Vaegter K, Tristen C, Sjoblom P, Azevedo MC, Figueira RCS, Braga DPAF, Setti AS, Iaconelli A, Borges E, Remohi Gimenez J, Cobo A, Castello D, Gamiz P, Albert C, Ferreira RC, Braga DPAF, Figueira RCS, Setti AS, Resende S, Iaconelli A, Borges E, Colturato SS, Braga DPAF, Figueira RCS, Setti AS, Resende S, Iaconelli A, Borges E, Ferrer Buitrago M, Ferrer Robles E, Munoz Soriano P, Ruiz-Jorro M, Calatayud Lliso C, Rawe VY, Wanggren K, Hanrieder J, Hambiliki F, Gulen-Yaldir F, Bergquist J, Stavreus-Evers A, Hreinsson J, Grunskis A, Bazarova A, Dundure I, Fodina V, Brikune J, Lakutins J, Pribenszky C, Cornea M, Reichart A, Uhereczky G, Losonczy E, Ficsor L, Lang Z, Ohgi S, Nakamura C, Hagiwara C, Kawashima M, Yanaihara A, Jones GM, Biba M, Kokkali G, Vaxevanoglou T, Chronopoulou M, Petroutsou K, Sfakianoudis K, Pantos K, Perez-Cano I, Gadea B, Martinez M, Muela L, Cruz M, Galindo N, Munoz M, Garrido N, Romano S, Albricci L, Stoppa M, Cerza C, Sanges F, Fusco S, Capalbo A, Maggiulli R, Ubaldi F, Rienzi L, Ulrick J, Kilani S, Chapman M, Losada C, Ortega I, Pacheco A, Bronet F, Aguilar J, Ojeda M, Taboas E, Perez M, Munoz E, Pellicer A, Meseguer M, Boumela I, Assou S, Haouzi D, Monzo C, Dechaud H, Hamamah S, Dechaud H, Boumela I, Assou S, Haouzi D, Monzo C, Hamamah S, Nakaoka Y, Hashimoto S, Amo A, Yamagata K, Nakano T, Akamatsu Y, Mezawa T, Ohnishi Y, Himeno T, Inoue T, Ito K, Morimoto Y. EMBRYOLOGY. Hum Reprod 2012. [DOI: 10.1093/humrep/27.s2.77] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tsukiboshi T, Ebina M, Okabe I, Sugawara K, Kouki K. First Report of Guinea Grass Smut Caused by Conidiosporomyces ayresii in Japan. Plant Dis 2012; 96:143. [PMID: 30731875 DOI: 10.1094/pdis-08-11-0630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Guinea grass (Panicum maximum Jacq.) is an important C-4 perennial plant that grows in southern Japan. In March 2010, a smut disease was found in grass that is cultivated in the Ishigaki Islands, Okinawa, in southernmost Japan. Spikelets of susceptible cultivars were swollen and filled with gray spore masses and seed production was substantially reduced. Two single-spore isolates of a smut fungus were obtained from infected spikelets and deposited at the NIAS Genebank, Japan as MAFF511519 and 511520. The 28S rDNA sequences of the isolates were analyzed as described by Boekhout et al. (1). The 28S rDNA sequence (GenBank Accession No. AB647346) of isolate MAFF511519 matched that of Conidiosporomyces ayresii (GenBank Accession No. AY819017) isolated from P. maximum with 99.8% similarity. Spores were pale brown to brown, globose to subglobose, verrucose, and 14 to 16 × 15 to 18 μm in diameter with relatively thick walls of 2 to 3 μm. With scanning electron microscopy, warts appeared dense and short with pointed tips. Spores germinated under wet conditions and produced masses of basidiospores. Basidiospores were aseptate, long, cylindrical, straight to slightly curved, 20 to 37 × 2 to 3 μm, and often germinated into Y-shaped conidia. This description matches previous descriptions (3) of C. ayresii (Berk.) Vánky (Tilletia ayresii Berk.) of the smut pathogen of guinea grass (2). The smut fungus was identified as C. ayresii on the basis of morphology and molecular phylogenetic analysis. To produce inoculum, the isolates were grown on potato dextrose agar at 25°C in the dark for 7 days. Two plants of cv. Ryukyu 5-gou with half-flowering heads were grown in a greenhouse for approximately 1 month and then inoculated by atomizing them with conidial suspensions of each isolate (106 conidia/ml). A plant sprayed with sterilized distilled water served as the control. Inoculated heads were covered with plastic bags for 48 h at 25°C. After 30 days, all inoculated plants were symptomatic with swollen spikelets releasing gray spores. Controls remained asymptomatic. The smut fungus was reisolated from released gray spores, confirming Koch's postulates. To our knowledge, this is the first report of smut caused by C. ayresii on guinea grass in Japan. References: (1) T. Boekhout et al. Stud. Mycol. 38:175, 1995. (2) J. M. Lenné and P. Trutmann. Diseases of Tropical Pasture Plants. CAB International, Wallingford, UK, 1994. (3) K. Vánky and R. Bauer. Mycotaxon 43:427, 1992.
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Affiliation(s)
- T Tsukiboshi
- National Institute of Livestock and Grassland Science, NARO, 768 Senbonmatsu, Nasushiobara, Tochigi 329-2793, Japan
| | - M Ebina
- National Institute of Livestock and Grassland Science, NARO, 768 Senbonmatsu, Nasushiobara, Tochigi 329-2793, Japan
| | - I Okabe
- National Institute of Livestock and Grassland Science, NARO, 768 Senbonmatsu, Nasushiobara, Tochigi 329-2793, Japan
| | - K Sugawara
- National Institute of Livestock and Grassland Science, NARO, 768 Senbonmatsu, Nasushiobara, Tochigi 329-2793, Japan
| | - K Kouki
- Okinawa Prefectural Livestock and Grassland Research Center, 2009-5 Nakijin, Okinawa 905-0426, Japan
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Engman M, Bystrom B, Varghese S, Lalitkumar PGL, Gemzell-Danielsson K, Romeu C, Urries A, Lierta M, Sanchez Rubio J, Sanz B, Perez I, Casis L, Salerno A, Nazzaro A, Di Iorio L, Bonassisa P, Van Os L, Vink-Ranti CQJ, de Haan-Cramer JH, Rijnders PM, Jansen CAM, Nazzaro A, Salerno A, Marino S, Granato C, Pastore E, Brandes M, Hamilton CJCM, de Bruin JP, Bots RSGM, Nelen WLDM, Kremer JAM, Szkodziak P, Wozniak S, Czuczwar P, Paszkowski T, Wozniak S, Szkodziak P, Czuczwar P, Paszkowski T, Agirregoitia N, Peralta L, Mendoza R, Exposito A, Matorras R, Agirregoitia E, Chuderland D, Ben-Ami I, Kaplan-Kraicer R, Grossman H, Satchi- Fainaro R, Eldar-Boock A, Ron-El R, Shalgi R, Custers IM, Scholten I, Moolenaar LM, Flierman PA, Dessel TJHM, Gerards MH, Cox T, Janssen CAH, van der Veen F, Mol BWJ, Wathlet S, Adriaenssens T, Verheyen G, Coucke W, Smitz J, Feliciani E, Ferraretti AP, Paesano C, Pellizzaro E, Magli MC, Gianaroli L, Hernandez J, Rodriguez-Fuentes A, Garcia-Guzman R, Palumbo A, Radunovic N, Tosic T, Djukic S, Lockwood JC, Adriaenssens T, Wathlet S, Van Landuyt L, Verheyen G, Coucke W, Smitz J, Karayalcin R, Ozcan SARP, Ozyer S, Gurlek B, Kale I, Moraloglu O, Batioglu S, Chaudhury K, Narendra Babu K, Mamata Joshi V, Srivastava S, Chakravarty BN, Viardot-Foucault V, Prasath EB, Tai BC, Chan JKY, Loh SF, Cordeiro I, Leal F, Soares AP, Nunes J, Sousa S, Aguiar A, Carvalho M, Calhaz-Jorge C, Karkanaki A, Piouk A, Katsikis I, Mousatat T, Koiou E, Daskalopoulos GN, Panidis D, Tolikas A, Tsakos E, Gerou S, Prapas Y, Loufopoulos A, Abanto E, Barrenetxea G, Agirregoikoa J, Anarte C, De Pablo JL, Burgos J, Komarovsky D, Friedler S, Gidoni Y, Ben-ami I, Strassburger D, Bern O, Kasterstein E E, Komsky A, Maslansky B, Ron-El R, Raziel A, Fuentes A, Argandona F, Gabler F, Galleguillos A, Torres A, Palomino WA, Gonzalez-Fernandez R, Pena O, Hernandez J, Palumbo A, Avila J, Talebi Chahvar S, Biondini V, Battistoni S, Giannubilo S, Tranquilli AL, Stensen MH, Tanbo T, Storeng R, Abyholm T, Fedorcsak P, Johnson SR, Foster L, Ellis J, Choi JR, Joo JK, Son JB, Lee KS, Helmgaard L, Klein BM, Arce JC, Sanhueza P, Donoso P, Salinas R, Enriquez R, Saez V, Carrasco I, Rios M, Gonzalez P, Macklon N, Guo M, Richardson M, Wilson P, Chian RC, Eapen A, Hrehorcak M, Campbell S, Nargund G, Oron G, Fisch B, Ao A, Freidman O, Zhang XY, Ben-Haroush A, Abir R, Hantisteanu S, Ellenbogen A, Hallak M, Michaeli M, Fainaru O, Maman E, Yong G, Kedem A, Yeruahlmi G, Konopnicki S, Cohen B, Dor J, Hourvitz A, Moshin V, Croitor M, Hotineanu A, Ciorap Z, Rasohin E, Aleyasin A, Agha Hosseini M, Mahdavi A, Safdarian L, Fallahi P, Mohajeri MR, Abbasi M, Esfahani F, Elnashar A, Badawy A, Totongy M, Mohamed H, Mustafa F, Seidman DS, Tadir Y, Goldchmit C, Gilboa Y, Siton A, Mashiach R, Rabinovici J, Yerushalmi GM, Inoue O, Kuji N, Fukunaga T, Ogawa S, Sugawara K, Yamada M, Hamatani T, Hanabusa H, Yoshimura Y, Kato S, Casarini L, La Marca A, Lispi M, Longobardi S, Pignatti E, Simoni M, Halpern G, Braga DPAF, Figueira RCS, Setti AS, Iaconelli Jr. A, Borges Jr. E, Vingris L, Setti AS, Braga DPAF, Figueira RCS, Iaconelli Jr. A, Pasqualotto FF, Borges Jr. E, Collado-Fernandez E, Harris SE, Cotterill M, Elder K, Picton HM, Serra V, Garrido N, Casanova C, Lara C, Remohi J, Bellver J, Steiner HP, Kim CH, You RM, Nah HY, Kang HJ, Kim S, Chae HD, Kang BM, Reig Viader R, Brieno Enriquez MA, Toran N, Cabero L, Giulotto E, Garcia Caldes M, Ruiz-Herrera A, Brieno-Enriquez M, Reig-Viader R, Toran N, Cabero L, Martinez F, Garcia-Caldes M, Velthut A, Zilmer M, Zilmer K, Haller T. Kaart E, Karro H, Salumets A, Bromfield JJ, Sheldon IM, Rezacova J, Madar J, Cuchalova L, Fiserova A, Shao R, Billig H. POSTER VIEWING SESSION - FEMALE (IN) FERTILITY. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.82] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ikeda Y, Yoshida M, Sugawara K, Katayose M. The difference of hip adductor longus activity between side-foot kicks and instep kicks. Br J Sports Med 2011. [DOI: 10.1136/bjsm.2011.084038.122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Tobino K, Shimizu Y, Miura S, Sugawara K, Takeda K, Tomino Y. Severe erosive lesions in the digestive tract of patients with Henoch-Schönlein Purpura (HSP) and its impact on prognosis - presentation of two cases and statistical review of adult-onset Japanese HSP. Clin Nephrol 2011; 75 Suppl 1:47-55. [PMID: 21269594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
INTRODUCTION Although many pediatric patients with Henoch-Schönlein Purpura (HSP) recover spontaneously, disease activity in adult patients often cannot be controlled by treatment. PURPOSE To assess the specific signs not formerly considered to be those of uncontrollable adult HSP patients. PATIENTS AND METHODS Clinical records of 2 adult patients who died during HSP were reviewed and previous reports on HSP were consulted. RESULTS Both patients had lesions in the digestive tract diagnosed as hemorrhagic erosion in the small intestine and colon. They were elderly and showed renal dysfunction. They died from severe infection after potent immunosuppressive treatment. A univariate analysis showed that age of over 60 years, severe renal symptoms (nephrotic syndrome and/or end-stage renal failure), Birmingham Vasculitis Activity Score (BVAS) of more than 18 points, massive immunosuppression and melena had significantly higher prevalence among patients who died. Multivariate statistical analysis with theoretical quantification analysis II revealed that age of over 60 and severe renal symptoms (nephrotic syndrome and/or end-stage renal failure) contributed to poor prognosis. The presence of melena did not contribute to poor prognosis despite results of the univariate analysis and our clinical impressions. DISCUSSION In multivariate statistical analysis, melena was selected as a sign of severe erosive lesions in the digestive tract because some of the patients were not examined by fiberscopy. Melena is caused by various lesions in the digestive tract and each of them has different effects on prognosis. CONCLUSION Elderly HSP patients with severe renal impairment should be carefully treated. Examination of the digestive tract by fiberscopy is recommended when melena is observed in these patients.
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Affiliation(s)
- K Tobino
- Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan
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Uehara K, Higashi T, Tanabe S, Morishita T, Ninomiya M, Funase K, Sugawara K. P20-3 Excitability changes in the human primary motor cortex by Dual motor Task are dependent on task properties. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60900-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Suzuki S, Matsui T, Sakaguchi Y, Ando K, Sugawara K, Nishiuchi N. P36-11 On extraction and usage of the negative slope in movement-related cortical potential (MRCP) intended for the performance estimation. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)61306-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Souma S, Takayama A, Sugawara K, Sato T, Takahashi T. Ultrahigh-resolution spin-resolved photoemission spectrometer with a mini Mott detector. Rev Sci Instrum 2010; 81:095101. [PMID: 20887002 DOI: 10.1063/1.3480542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We have developed an ultrahigh-resolution spin-resolved photoemission spectrometer with a highly efficient mini Mott detector and an intense xenon plasma discharge lamp. The spectrometer achieves the energy resolutions of 0.9 and 8 meV for non-spin-resolved and spin-resolved modes, respectively. Three-dimensional spin-polarization is determined by using a 90° electron deflector situated before the Mott detector. The performance of spectrometer is demonstrated by observation of a clear Rashba splitting of the Bi(111) surface states.
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Affiliation(s)
- S Souma
- WPI Research Center, Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
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Ohno K, Saito S, Sugawara K, Suzuki T, Togawa T, Sakuraba H. Structural basis of neuronal ceroid lipofuscinosis 1. Brain Dev 2010; 32:524-30. [PMID: 19793631 DOI: 10.1016/j.braindev.2009.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2009] [Revised: 08/13/2009] [Accepted: 08/30/2009] [Indexed: 11/29/2022]
Abstract
To elucidate the basis of neuronal ceroid lipofuscinosis 1 (CLN1) from the viewpoint of enzyme structure, we constructed structural models of mutant palmitoyl protein thioesterase 1 (PPT1) proteins using molecular modeling software, jackal and TINKER. We classified the amino acid substitutions responsible for CLN1 and divided them into two groups, groups 1 and 2, based on the biochemical phenotype. Then, we examined the structural changes in the PPT1 protein for each group by calculating the solvent-accessible surface area (ASA) and the number of atoms affected. Our results revealed that the structural changes in group 1, which exhibits a complete deficiency of PPT1 activity, were generally large and located in the core region of the enzyme molecule. In group 2 exhibiting residual PPT1 activity, the structural changes in PPT1 were smaller and localized near the surface of the enzyme molecule. Coloring of affected atoms based on the distances between those in the wild type and mutants revealed the characteristic structural changes in the PPT1 protein geographically and semi-quantitatively. Structural investigation provides us with a deeper insight into the basis of CLN1.
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Affiliation(s)
- Kazuki Ohno
- NPO for the Promotion of Research on Intellectual Property Tokyo, Tokyo, Japan
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Togawa T, Kodama T, Suzuki T, Sugawara K, Tsukimura T, Ohashi T, Ishige N, Suzuki K, Kitagawa T, Sakuraba H. Plasma globotriaosylsphingosine as a biomarker of Fabry disease. Mol Genet Metab 2010; 100:257-61. [PMID: 20409739 DOI: 10.1016/j.ymgme.2010.03.020] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2010] [Accepted: 03/27/2010] [Indexed: 11/19/2022]
Abstract
Fabry disease is an X-linked genetic disorder caused by a deficiency of alpha-galactosidase A (GLA) activity. As enzyme replacement therapy (ERT) involving recombinant GLAs has been introduced for this disease, a useful biomarker for diagnosis and monitoring of therapy has been strongly required. We measured globotriaosylsphingosine (lyso-Gb3) and globotriaosylceramide (Gb3) in plasma samples from ten hemizygous males (six classic and four variant cases) and eight heterozygous females with Fabry disease, and investigated the responses of plasma lyso-Gb3 and Gb3 in a male Fabry patient who had undergone ERT for 4years to determine whether plasma lyso-Gb3 and Gb3 could be biomarkers of Fabry disease. The results revealed that plasma lyso-Gb3 was apparently increased in male patients and was higher in cases of the classic form than those of the variant one. In Fabry females, plasma lyso-Gb3 was moderately increased in both symptomatic and asymptomatic cases, and there was a correlation between the increase in lyso-Gb3 and the decrease in GLA activity. As to plasma Gb3, the levels in the variant Fabry hemizygotes and Fabry heterozygotes could not be distinguished from those in the controls, although those in the classic Fabry hemizygotes were increased. The plasma lyso-Gb3 level in the Fabry patient who had received ERT was elevated at the baseline and fell more dramatically on ERT than that of Gb3. Plasma lyso-Gb3 could thus be a potential biomarker of Fabry disease.
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Affiliation(s)
- Tadayasu Togawa
- Department of Analytical Biochemistry, Meiji Pharmaceutical University, Kiyose, Tokyo 204-8588, Japan
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