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Han T, Xu Y, Sun L, Hashimoto M, Wei J. Microglial response to aging and neuroinflammation in the development of neurodegenerative diseases. Neural Regen Res 2024; 19:1241-1248. [PMID: 37905870 DOI: 10.4103/1673-5374.385845] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 07/17/2023] [Indexed: 11/02/2023] Open
Abstract
ABSTRACT Cellular senescence and chronic inflammation in response to aging are considered to be indicators of brain aging; they have a great impact on the aging process and are the main risk factors for neurodegeneration. Reviewing the microglial response to aging and neuroinflammation in neurodegenerative diseases will help understand the importance of microglia in neurodegenerative diseases. This review describes the origin and function of microglia and focuses on the role of different states of the microglial response to aging and chronic inflammation on the occurrence and development of neurodegenerative diseases, including Alzheimer's disease, Huntington's chorea, and Parkinson's disease. This review also describes the potential benefits of treating neurodegenerative diseases by modulating changes in microglial states. Therefore, inducing a shift from the neurotoxic to neuroprotective microglial state in neurodegenerative diseases induced by aging and chronic inflammation holds promise for the treatment of neurodegenerative diseases in the future.
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Affiliation(s)
- Tingting Han
- Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, Henan Province, China
| | - Yuxiang Xu
- Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, Henan Province, China
| | - Lin Sun
- Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, Henan Province, China
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan Province, China
| | - Makoto Hashimoto
- Department of Basic Technology, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Jianshe Wei
- Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, Henan Province, China
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2
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Li Z, Lyu P, Chen Z, Guan D, Yu S, Zhao J, Huang P, Zhou X, Qiu Z, Fang H, Hashimoto M, Lu D, Song F, Loh KP, Zheng Y, Shen ZX, Novoselov KS, Lu J. Beyond Conventional Charge Density Wave for Strongly Enhanced 2D Superconductivity in 1H-TaS 2 Superlattices. Adv Mater 2024:e2312341. [PMID: 38567889 DOI: 10.1002/adma.202312341] [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] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 03/26/2024] [Indexed: 04/12/2024]
Abstract
Noncentrosymmetric transition metal dichalcogenide (TMD) monolayers offer a fertile platform for exploring unconventional Ising superconductivity (SC) and charge density waves (CDWs). However, the vulnerability of isolated monolayers to structural disorder and environmental oxidation often degrade their electronic coherence. Herein, an alternative approach is reported for fabricating stable and intrinsic monolayers of 1H-TaS2 sandwiched between SnS blocks in a (SnS)1.15TaS2 van der Waals (vdW) superlattice. The SnS block layers not only decouple individual 1H-TaS2 sublayers to endow them with monolayer-like electronic characteristics, but also protect the 1H-TaS2 layers from electronic degradation. The results reveal the characteristic 3 × 3 CDW order in 1H-TaS2 sublayers associated with electronic rearrangement in the low-lying sulfur p band, which uncovers a previously undiscovered CDW mechanism rather than the conventional Fermi surface-related framework. Additionally, the (SnS)1.15TaS2 superlattice exhibits a strongly enhanced Ising-like SC with a layer-independent Tc of ≈3.0 K, comparable to that of the isolated monolayer 1H-TaS2 sample, presumably attributed to their monolayer-like characteristics and retained Fermi states. These results provide new insights into the long-debated CDW order and enhanced SC of monolayer 1H-TaS2, establishing bulk vdW superlattices as promising platforms for investigating exotic collective quantum phases in the 2D limit.
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Affiliation(s)
- Zejun Li
- Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing, 211189, China
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- Purple Mountain Laboratories, Nanjing, 211111, China
| | - Pin Lyu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Zhaolong Chen
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117544, Singapore
- School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Dandan Guan
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), TD Lee Institute, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shuang Yu
- Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, 310027, China
| | - Jinpei Zhao
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117544, Singapore
| | - Pengru Huang
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117544, Singapore
- Guangxi Key Laboratory of Information Materials, School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Xin Zhou
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Zhizhan Qiu
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117544, Singapore
| | - Hanyan Fang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Makoto Hashimoto
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Donghui Lu
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Fei Song
- Shanghai Synchrotron Radiation Faciality, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Kian Ping Loh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Yi Zheng
- Zhejiang Province Key Laboratory of Quantum Technology and Device, School of Physics, and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, 310027, China
| | - Zhi-Xun Shen
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
- Geballe Laboratory for Advanced Materials, Department of Physics and Applied Physics, Stanford University, Stanford, CA, 94305, USA
| | - Kostya S Novoselov
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117544, Singapore
| | - Jiong Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117544, Singapore
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Wu H, Chen L, Malinowski P, Jang BG, Deng Q, Scott K, Huang J, Ruff JPC, He Y, Chen X, Hu C, Yue Z, Oh JS, Teng X, Guo Y, Klemm M, Shi C, Shi Y, Setty C, Werner T, Hashimoto M, Lu D, Yilmaz T, Vescovo E, Mo SK, Fedorov A, Denlinger JD, Xie Y, Gao B, Kono J, Dai P, Han Y, Xu X, Birgeneau RJ, Zhu JX, da Silva Neto EH, Wu L, Chu JH, Si Q, Yi M. Reversible non-volatile electronic switching in a near-room-temperature van der Waals ferromagnet. Nat Commun 2024; 15:2739. [PMID: 38548765 PMCID: PMC10978849 DOI: 10.1038/s41467-024-46862-z] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 03/13/2024] [Indexed: 04/01/2024] Open
Abstract
Non-volatile phase-change memory devices utilize local heating to toggle between crystalline and amorphous states with distinct electrical properties. Expanding on this kind of switching to two topologically distinct phases requires controlled non-volatile switching between two crystalline phases with distinct symmetries. Here, we report the observation of reversible and non-volatile switching between two stable and closely related crystal structures, with remarkably distinct electronic structures, in the near-room-temperature van der Waals ferromagnet Fe5-δGeTe2. We show that the switching is enabled by the ordering and disordering of Fe site vacancies that results in distinct crystalline symmetries of the two phases, which can be controlled by a thermal annealing and quenching method. The two phases are distinguished by the presence of topological nodal lines due to the preserved global inversion symmetry in the site-disordered phase, flat bands resulting from quantum destructive interference on a bipartite lattice, and broken inversion symmetry in the site-ordered phase.
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Affiliation(s)
- Han Wu
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Lei Chen
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Paul Malinowski
- Department of Physics, University of Washington, Seattle, WA, USA
| | - Bo Gyu Jang
- Theoretical Division and Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, USA
- Department of Advanced Materials Engineering for Information and Electronics, Kyung Hee University, Yongin, Republic of Korea
| | - Qinwen Deng
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA
| | - Kirsty Scott
- Department of Physics, Yale University, New Haven, CT, USA
- Energy Sciences Institute, Yale University, West Haven, CT, USA
- Department of Physics and Astronomy, University of California, Davis, CA, USA
- Department of Applied Physics, Yale University, New Haven, CT, USA
| | - Jianwei Huang
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Jacob P C Ruff
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, NY, USA
| | - Yu He
- Department of Physics, University of California, Berkeley, CA, USA
| | - Xiang Chen
- Department of Physics, University of California, Berkeley, CA, USA
| | - Chaowei Hu
- Department of Physics, University of Washington, Seattle, WA, USA
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA
| | - Ziqin Yue
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Ji Seop Oh
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA
| | - Xiaokun Teng
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Yucheng Guo
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Mason Klemm
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Chuqiao Shi
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, USA
| | - Yue Shi
- Department of Physics, University of Washington, Seattle, WA, USA
| | - Chandan Setty
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Tyler Werner
- Department of Applied Physics, Yale University, New Haven, CT, USA
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Donghui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Turgut Yilmaz
- National Synchrotron Light Source II, Brookhaven National Lab, Upton, NY, USA
| | - Elio Vescovo
- National Synchrotron Light Source II, Brookhaven National Lab, Upton, NY, USA
| | - Sung-Kwan Mo
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Alexei Fedorov
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | | | - Yaofeng Xie
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Bin Gao
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Junichiro Kono
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, USA
- Departments of Electrical and Computer Engineering, Rice University, Houston, TX, USA
| | - Pengcheng Dai
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Yimo Han
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, USA
| | - Xiaodong Xu
- Department of Physics, University of Washington, Seattle, WA, USA
- Department of Materials Science and Engineering, University of Washington, Seattle, WA, USA
| | - Robert J Birgeneau
- Department of Physics, University of California, Berkeley, CA, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - Jian-Xin Zhu
- Theoretical Division and Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Eduardo H da Silva Neto
- Department of Physics, Yale University, New Haven, CT, USA
- Energy Sciences Institute, Yale University, West Haven, CT, USA
- Department of Physics and Astronomy, University of California, Davis, CA, USA
- Department of Applied Physics, Yale University, New Haven, CT, USA
| | - Liang Wu
- Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA, USA
| | - Jiun-Haw Chu
- Department of Physics, University of Washington, Seattle, WA, USA
| | - Qimiao Si
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA
| | - Ming Yi
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, TX, USA.
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4
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Hashimoto M, Koizuka I, Yamashita H, Suzuki M, Omori K, Origasa H, Takeda N, Shojaku H. Diagnostic and therapeutic strategies for vestibular neuritis of the Japan Society for Equilibrium Research. Auris Nasus Larynx 2024; 51:31-37. [PMID: 36581537 DOI: 10.1016/j.anl.2022.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 12/15/2022] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To provide diagnostic and therapeutic strategies for vestibular neuritis in accordance with the Japanese Clinical Practice Guidelines for Vestibular Neuritis 2021. METHODS The Committee for Clinical Practice Guidelines for Vestibular Neuritis was entrusted with a review of the relevant scientific literature on the above topic. Clinical Questions (CQs) concerning the treatment of vestibular neuritis were produced, and a search of the literature was conducted to identify studies related to the CQs. The recommendations were based on the literature review and the expert opinion of a subcommittee. RESULTS We proposed the diagnostic criteria for vestibular neuritis, as well as answers to CQs, recommendations, and evidence levels for the treatment of vestibular neuritis. CONCLUSION The diagnostic criteria for vestibular neuritis were based on clinical history and examination findings after completing the differential diagnosis process. The treatment of vestibular neuritis was divided into acute, subacute, and chronic stages. The Japanese Clinical Practice Guidelines for Vestibular Neuritis 2021 should be used as a reference in the diagnosis and treatment of vestibular neuritis.
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Affiliation(s)
- Makoto Hashimoto
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Izumi Koizuka
- Department of Otolaryngology, St. Marianna University School of Medicine, Kawasaki, Japan.
| | - Hiroshi Yamashita
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Mamoru Suzuki
- Department of Otolaryngology, Tokyo Medical University, Tokyo, Japan
| | - Koichi Omori
- Department of Otolaryngology-Head and Neck Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hideki Origasa
- Department of Biostatistics and Clinical Epidemiology, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Noriaki Takeda
- Department of Otolaryngology, University of Tokushima School of Medicine, Tokushima, Japan
| | - Hideo Shojaku
- Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan
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5
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Staplin N, Haynes R, Judge PK, Wanner C, Green JB, Emberson J, Preiss D, Mayne KJ, Ng SYA, Sammons E, Zhu D, Hill M, Stevens W, Wallendszus K, Brenner S, Cheung AK, Liu ZH, Li J, Hooi LS, Liu WJ, Kadowaki T, Nangaku M, Levin A, Cherney D, Maggioni AP, Pontremoli R, Deo R, Goto S, Rossello X, Tuttle KR, Steubl D, Petrini M, Seidi S, Landray MJ, Baigent C, Herrington WG, Abat S, Abd Rahman R, Abdul Cader R, Abdul Hafidz MI, Abdul Wahab MZ, Abdullah NK, Abdul-Samad T, Abe M, Abraham N, Acheampong S, Achiri P, Acosta JA, Adeleke A, Adell V, Adewuyi-Dalton R, Adnan N, Africano A, Agharazii M, Aguilar F, Aguilera A, Ahmad M, Ahmad MK, Ahmad NA, Ahmad NH, Ahmad NI, Ahmad Miswan N, Ahmad Rosdi H, Ahmed I, Ahmed S, Ahmed S, Aiello J, Aitken A, AitSadi R, Aker S, Akimoto S, Akinfolarin A, Akram S, Alberici F, Albert C, Aldrich L, Alegata M, Alexander L, Alfaress S, Alhadj Ali M, Ali A, Ali A, Alicic R, Aliu A, Almaraz R, Almasarwah R, Almeida J, Aloisi A, Al-Rabadi L, Alscher D, Alvarez P, Al-Zeer B, Amat M, Ambrose C, Ammar H, An Y, Andriaccio L, Ansu K, Apostolidi A, Arai N, Araki H, Araki S, Arbi A, Arechiga O, Armstrong S, Arnold T, Aronoff S, Arriaga W, Arroyo J, Arteaga D, Asahara S, Asai A, Asai N, Asano S, Asawa M, Asmee MF, Aucella F, Augustin M, Avery A, Awad A, Awang IY, Awazawa M, Axler A, Ayub W, Azhari Z, Baccaro R, Badin C, Bagwell B, Bahlmann-Kroll E, Bahtar AZ, Baigent C, Bains D, Bajaj H, Baker R, Baldini E, Banas B, Banerjee D, Banno S, Bansal S, Barberi S, Barnes S, Barnini C, Barot C, Barrett K, Barrios R, Bartolomei Mecatti B, Barton I, Barton J, Basily W, Bavanandan S, Baxter A, Becker L, Beddhu S, Beige J, Beigh S, Bell S, Benck U, Beneat A, Bennett A, Bennett D, Benyon S, Berdeprado J, Bergler T, Bergner A, Berry M, Bevilacqua M, Bhairoo J, Bhandari S, Bhandary N, Bhatt A, Bhattarai M, Bhavsar M, Bian W, Bianchini F, Bianco S, Bilous R, Bilton J, Bilucaglia D, Bird C, Birudaraju D, Biscoveanu M, Blake C, Bleakley N, Bocchicchia K, Bodine S, Bodington R, Boedecker S, Bolduc M, Bolton S, Bond C, Boreky F, Boren K, Bouchi R, Bough L, Bovan D, Bowler C, Bowman L, Brar N, Braun C, Breach A, Breitenfeldt M, Brenner S, Brettschneider B, Brewer A, Brewer G, Brindle V, Brioni E, Brown C, Brown H, Brown L, Brown R, Brown S, Browne D, Bruce K, Brueckmann M, Brunskill N, Bryant M, Brzoska M, Bu Y, Buckman C, Budoff M, Bullen M, Burke A, Burnette S, Burston C, Busch M, Bushnell J, Butler S, Büttner C, Byrne C, Caamano A, Cadorna J, Cafiero C, Cagle M, Cai J, Calabrese K, Calvi C, Camilleri B, Camp S, Campbell D, Campbell R, Cao H, Capelli I, Caple M, Caplin B, Cardone A, Carle J, Carnall V, Caroppo M, Carr S, Carraro G, Carson M, Casares P, Castillo C, Castro C, Caudill B, Cejka V, Ceseri M, Cham L, Chamberlain A, Chambers J, Chan CBT, Chan JYM, Chan YC, Chang E, Chang E, Chant T, Chavagnon T, Chellamuthu P, Chen F, Chen J, Chen P, Chen TM, Chen Y, Chen Y, Cheng C, Cheng H, Cheng MC, Cherney D, Cheung AK, Ching CH, Chitalia N, Choksi R, Chukwu C, Chung K, Cianciolo G, Cipressa L, Clark S, Clarke H, Clarke R, Clarke S, Cleveland B, Cole E, Coles H, Condurache L, Connor A, Convery K, Cooper A, Cooper N, Cooper Z, Cooperman L, Cosgrove L, Coutts P, Cowley A, Craik R, Cui G, Cummins T, Dahl N, Dai H, Dajani L, D'Amelio A, Damian E, Damianik K, Danel L, Daniels C, Daniels T, Darbeau S, Darius H, Dasgupta T, Davies J, Davies L, Davis A, Davis J, Davis L, Dayanandan R, Dayi S, Dayrell R, De Nicola L, Debnath S, Deeb W, Degenhardt S, DeGoursey K, Delaney M, Deo R, DeRaad R, Derebail V, Dev D, Devaux M, Dhall P, Dhillon G, Dienes J, Dobre M, Doctolero E, Dodds V, Domingo D, Donaldson D, Donaldson P, Donhauser C, Donley V, Dorestin S, Dorey S, Doulton T, Draganova D, Draxlbauer K, Driver F, Du H, Dube F, Duck T, Dugal T, Dugas J, Dukka H, Dumann H, Durham W, Dursch M, Dykas R, Easow R, Eckrich E, Eden G, Edmerson E, Edwards H, Ee LW, Eguchi J, Ehrl Y, Eichstadt K, Eid W, Eilerman B, Ejima Y, Eldon H, Ellam T, Elliott L, Ellison R, Emberson J, Epp R, Er A, Espino-Obrero M, Estcourt S, Estienne L, Evans G, Evans J, Evans S, Fabbri G, Fajardo-Moser M, Falcone C, Fani F, Faria-Shayler P, Farnia F, Farrugia D, Fechter M, Fellowes D, Feng F, Fernandez J, Ferraro P, Field A, Fikry S, Finch J, Finn H, Fioretto P, Fish R, Fleischer A, Fleming-Brown D, Fletcher L, Flora R, Foellinger C, Foligno N, Forest S, Forghani Z, Forsyth K, Fottrell-Gould D, Fox P, Frankel A, Fraser D, Frazier R, Frederick K, Freking N, French H, Froment A, Fuchs B, Fuessl L, Fujii H, Fujimoto A, Fujita A, Fujita K, Fujita Y, Fukagawa M, Fukao Y, Fukasawa A, Fuller T, Funayama T, Fung E, Furukawa M, Furukawa Y, Furusho M, Gabel S, Gaidu J, Gaiser S, Gallo K, Galloway C, Gambaro G, Gan CC, Gangemi C, Gao M, Garcia K, Garcia M, Garofalo C, Garrity M, Garza A, Gasko S, Gavrila M, Gebeyehu B, Geddes A, Gentile G, George A, George J, Gesualdo L, Ghalli F, Ghanem A, Ghate T, Ghavampour S, Ghazi A, Gherman A, Giebeln-Hudnell U, Gill B, Gillham S, Girakossyan I, Girndt M, Giuffrida A, Glenwright M, Glider T, Gloria R, Glowski D, Goh BL, Goh CB, Gohda T, Goldenberg R, Goldfaden R, Goldsmith C, Golson B, Gonce V, Gong Q, Goodenough B, Goodwin N, Goonasekera M, Gordon A, Gordon J, Gore A, Goto H, Goto S, Goto S, Gowen D, Grace A, Graham J, Grandaliano G, Gray M, Green JB, Greene T, Greenwood G, Grewal B, Grifa R, Griffin D, Griffin S, Grimmer P, Grobovaite E, Grotjahn S, Guerini A, Guest C, Gunda S, Guo B, Guo Q, Haack S, Haase M, Haaser K, Habuki K, Hadley A, Hagan S, Hagge S, Haller H, Ham S, Hamal S, Hamamoto Y, Hamano N, Hamm M, Hanburry A, Haneda M, Hanf C, Hanif W, Hansen J, Hanson L, Hantel S, Haraguchi T, Harding E, Harding T, Hardy C, Hartner C, Harun Z, Harvill L, Hasan A, Hase H, Hasegawa F, Hasegawa T, Hashimoto A, Hashimoto C, Hashimoto M, Hashimoto S, Haskett S, Hauske SJ, Hawfield A, Hayami T, Hayashi M, Hayashi S, Haynes R, Hazara A, Healy C, Hecktman J, Heine G, Henderson H, Henschel R, Hepditch A, Herfurth K, Hernandez G, Hernandez Pena A, Hernandez-Cassis C, Herrington WG, Herzog C, Hewins S, Hewitt D, Hichkad L, Higashi S, Higuchi C, Hill C, Hill L, Hill M, Himeno T, Hing A, Hirakawa Y, Hirata K, Hirota Y, Hisatake T, Hitchcock S, Hodakowski A, Hodge W, Hogan R, Hohenstatt U, Hohenstein B, Hooi L, Hope S, Hopley M, Horikawa S, Hosein D, Hosooka T, Hou L, Hou W, Howie L, Howson A, Hozak M, Htet Z, Hu X, Hu Y, Huang J, Huda N, Hudig L, Hudson A, Hugo C, Hull R, Hume L, Hundei W, Hunt N, Hunter A, Hurley S, Hurst A, Hutchinson C, Hyo T, Ibrahim FH, Ibrahim S, Ihana N, Ikeda T, Imai A, Imamine R, Inamori A, Inazawa H, Ingell J, Inomata K, Inukai Y, Ioka M, Irtiza-Ali A, Isakova T, Isari W, Iselt M, Ishiguro A, Ishihara K, Ishikawa T, Ishimoto T, Ishizuka K, Ismail R, Itano S, Ito H, Ito K, Ito M, Ito Y, Iwagaitsu S, Iwaita Y, Iwakura T, Iwamoto M, Iwasa M, Iwasaki H, Iwasaki S, Izumi K, Izumi K, Izumi T, Jaafar SM, Jackson C, Jackson Y, Jafari G, Jahangiriesmaili M, Jain N, Jansson K, Jasim H, Jeffers L, Jenkins A, Jesky M, Jesus-Silva J, Jeyarajah D, Jiang Y, Jiao X, Jimenez G, Jin B, Jin Q, Jochims J, Johns B, Johnson C, Johnson T, Jolly S, Jones L, Jones L, Jones S, Jones T, Jones V, Joseph M, Joshi S, Judge P, Junejo N, Junus S, Kachele M, Kadowaki T, Kadoya H, Kaga H, Kai H, Kajio H, Kaluza-Schilling W, Kamaruzaman L, Kamarzarian A, Kamimura Y, Kamiya H, Kamundi C, Kan T, Kanaguchi Y, Kanazawa A, Kanda E, Kanegae S, Kaneko K, Kaneko K, Kang HY, Kano T, Karim M, Karounos D, Karsan W, Kasagi R, Kashihara N, Katagiri H, Katanosaka A, Katayama A, Katayama M, Katiman E, Kato K, Kato M, Kato N, Kato S, Kato T, Kato Y, Katsuda Y, Katsuno T, Kaufeld J, Kavak Y, Kawai I, Kawai M, Kawai M, Kawase A, Kawashima S, Kazory A, Kearney J, Keith B, Kellett J, Kelley S, Kershaw M, Ketteler M, Khai Q, Khairullah Q, Khandwala H, Khoo KKL, Khwaja A, Kidokoro K, Kielstein J, Kihara M, Kimber C, Kimura S, Kinashi H, Kingston H, Kinomura M, Kinsella-Perks E, Kitagawa M, Kitajima M, Kitamura 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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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K, McKinley T, McLaughlin S, McLean N, McNeil L, Measor A, Meek J, Mehta A, Mehta R, Melandri M, Mené P, Meng T, Menne J, Merritt K, Merscher S, Meshykhi C, Messa P, Messinger L, Miftari N, Miller R, Miller Y, Miller-Hodges E, Minatoguchi M, Miners M, Minutolo R, Mita T, Miura Y, Miyaji M, Miyamoto S, Miyatsuka T, Miyazaki M, Miyazawa I, Mizumachi R, Mizuno M, Moffat S, Mohamad Nor FS, Mohamad Zaini SN, Mohamed Affandi FA, Mohandas C, Mohd R, Mohd Fauzi NA, Mohd Sharif NH, Mohd Yusoff Y, Moist L, Moncada A, Montasser M, Moon A, Moran C, Morgan N, Moriarty J, Morig G, Morinaga H, Morino K, Morisaki T, Morishita Y, Morlok S, Morris A, Morris F, Mostafa S, Mostefai Y, Motegi M, Motherwell N, Motta D, Mottl A, Moys R, Mozaffari S, Muir J, Mulhern J, Mulligan S, Munakata Y, Murakami C, Murakoshi M, Murawska A, Murphy K, Murphy L, Murray S, Murtagh H, Musa MA, Mushahar L, Mustafa R, Mustafar R, Muto M, Nadar E, Nagano R, Nagasawa T, Nagashima E, Nagasu H, Nagelberg S, Nair H, Nakagawa Y, 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Ryder M, Sabarai A, Saccà C, Sachson R, Sadler E, Safiee NS, Sahani M, Saillant A, Saini J, Saito C, Saito S, Sakaguchi K, Sakai M, Salim H, Salviani C, Sammons E, Sampson A, Samson F, Sandercock P, Sanguila S, Santorelli G, Santoro D, Sarabu N, Saram T, Sardell R, Sasajima H, Sasaki T, Satko S, Sato A, Sato D, Sato H, Sato H, Sato J, Sato T, Sato Y, Satoh M, Sawada K, Schanz M, Scheidemantel F, Schemmelmann M, Schettler E, Schettler V, Schlieper GR, Schmidt C, Schmidt G, Schmidt U, Schmidt-Gurtler H, Schmude M, Schneider A, Schneider I, Schneider-Danwitz C, Schomig M, Schramm T, Schreiber A, Schricker S, Schroppel B, Schulte-Kemna L, Schulz E, Schumacher B, Schuster A, Schwab A, Scolari F, Scott A, Seeger W, Seeger W, Segal M, Seifert L, Seifert M, Sekiya M, Sellars R, Seman MR, Shah S, Shah S, Shainberg L, Shanmuganathan M, Shao F, Sharma K, Sharpe C, Sheikh-Ali M, Sheldon J, Shenton C, Shepherd A, Shepperd M, Sheridan R, Sheriff Z, Shibata Y, Shigehara T, Shikata K, Shimamura K, 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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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Wei J, Ho G, Masliah E, Hashimoto M. Differential involvement of amyloidogenic evolvability in oligodendropathies; Multiple Sclerosis and Multiple System Atrophy. Prion 2023; 17:29-34. [PMID: 36785484 PMCID: PMC9928476 DOI: 10.1080/19336896.2023.2172912] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
Although multiple sclerosis (MS) and multiple system atrophy (MSA) are both characterized by impaired oligodendrocytes (OLs), the aetiological relevance remains obscure. Given inherent stressors affecting OLs, the objective of the present study was to discuss the possible role of amyloidogenic evolvability (aEVO) in these conditions. Hypothetically, in aEVO, protofibrils of amyloidogenic proteins (APs), including β-synuclein and β-amyloid, might form in response to diverse stressors in parental brain. Subsequently, the AP protofibrils might be transmitted to offspring via germ cells in a prion-like fashion. By virtue of the stress information conferred by protofibrillar APs, the OLs in offspring's brain might be more resilient to forthcoming stressors, perhaps reducing MS risk. aEVO could be comparable to a gene for the inheritance of acquired characteristics. On the contrary, during ageing, MSA risk is increased through antagonistic pleiotropy. Consistently, the expression levels of APs are reduced in MS, but are increased in MSA compared to controls. Furthermore, β-synuclein, the non-amyloidogenic homologue of β-synuclein, might exert a buffering effect on aEVO, and abnormal β-synuclein could also increase MS and MSA disease activity. Collectively, a better understanding of the role of aEVO in the OL diseases might lead to novel interventions for such chronic degenerative conditions.
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Affiliation(s)
- Jianshe Wei
- Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, Henan, China,CONTACT Jianshe Wei Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, Henan, 475004, China
| | - Gilbert Ho
- Pacific Center for Neurological Disease (PCND) Neuroscience Research Institute, Poway, CA, USA
| | - Eliezer Masliah
- Division of Neurosciences, National Institute on Aging, National Institutes of Health, Bethesda, MD, USA
| | - Makoto Hashimoto
- Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, Japan,Makoto Hashimoto Tokyo Metropolitan Institute of Medical Sciences, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo156-0057
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Chen C, Tang W, Chen X, Kang Z, Ding S, Scott K, Wang S, Li Z, Ruff JPC, Hashimoto M, Lu DH, Jozwiak C, Bostwick A, Rotenberg E, da Silva Neto EH, Birgeneau RJ, Chen Y, Louie SG, Wang Y, He Y. Anomalous excitonic phase diagram in band-gap-tuned Ta 2Ni(Se,S) 5. Nat Commun 2023; 14:7512. [PMID: 37980419 PMCID: PMC10657405 DOI: 10.1038/s41467-023-43365-1] [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: 06/01/2023] [Accepted: 11/07/2023] [Indexed: 11/20/2023] Open
Abstract
During a band-gap-tuned semimetal-to-semiconductor transition, Coulomb attraction between electrons and holes can cause spontaneously formed excitons near the zero-band-gap point, or the Lifshitz transition point. This has become an important route to realize bulk excitonic insulators - an insulating ground state distinct from single-particle band insulators. How this route manifests from weak to strong coupling is not clear. In this work, using angle-resolved photoemission spectroscopy (ARPES) and high-resolution synchrotron x-ray diffraction (XRD), we investigate the broken symmetry state across the semimetal-to-semiconductor transition in a leading bulk excitonic insulator candidate system Ta2Ni(Se,S)5. A broken symmetry phase is found to be continuously suppressed from the semimetal side to the semiconductor side, contradicting the anticipated maximal excitonic instability around the Lifshitz transition. Bolstered by first-principles and model calculations, we find strong interband electron-phonon coupling to play a crucial role in the enhanced symmetry breaking on the semimetal side of the phase diagram. Our results not only provide insight into the longstanding debate of the nature of intertwined orders in Ta2NiSe5, but also establish a basis for exploring band-gap-tuned structural and electronic instabilities in strongly coupled systems.
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Affiliation(s)
- Cheng Chen
- Department of Physics, University of Oxford, Oxford, OX1 3PU, United Kingdom
- Department of Applied Physics, Yale University, New Haven, CT, 06511, USA
| | - Weichen Tang
- Physics Department, University of California, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
| | - Xiang Chen
- Physics Department, University of California, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
| | - Zhibo Kang
- Department of Applied Physics, Yale University, New Haven, CT, 06511, USA
| | - Shuhan Ding
- Department of Physics and Astronomy, Clemson University, Clemson, SC, 29631, USA
| | - Kirsty Scott
- Department of Physics, Yale University, New Haven, CT, 06511, USA
| | - Siqi Wang
- Department of Applied Physics, Yale University, New Haven, CT, 06511, USA
| | - Zhenglu Li
- Physics Department, University of California, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, 90089, USA
| | - Jacob P C Ruff
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, NY, 14853, USA
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Dong-Hui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Chris Jozwiak
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Aaron Bostwick
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Eli Rotenberg
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | | | - Robert J Birgeneau
- Physics Department, University of California, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
- Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
| | - Yulin Chen
- Department of Physics, University of Oxford, Oxford, OX1 3PU, United Kingdom
| | - Steven G Louie
- Physics Department, University of California, Berkeley, CA, 94720, USA.
- Materials Sciences Division, Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA.
| | - Yao Wang
- Department of Physics and Astronomy, Clemson University, Clemson, SC, 29631, USA.
- Department of Chemistry, Emory University, Atlanta, GA, 30322, USA.
| | - Yu He
- Department of Applied Physics, Yale University, New Haven, CT, 06511, USA.
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9
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Wu S, Basak R, Li W, Kim JW, Ryan PJ, Lu D, Hashimoto M, Nelson C, Acevedo-Esteves R, Haley SC, Analytis JG, He Y, Frano A, Birgeneau RJ. Discovery of Charge Order in the Transition Metal Dichalcogenide Fe_{x}NbS_{2}. Phys Rev Lett 2023; 131:186701. [PMID: 37977621 DOI: 10.1103/physrevlett.131.186701] [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] [Received: 05/15/2023] [Accepted: 09/08/2023] [Indexed: 11/19/2023]
Abstract
The Fe intercalated transition metal dichalcogenide (TMD), Fe_{1/3}NbS_{2}, exhibits remarkable resistance switching properties and highly tunable spin ordering phases due to magnetic defects. We conduct synchrotron x-ray scattering measurements on both underintercalated (x=0.32) and overintercalated (x=0.35) samples. We discover a new charge order phase in the overintercalated sample, where the excess Fe atoms lead to a zigzag antiferromagnetic order. The agreement between the charge and magnetic ordering temperatures, as well as their intensity relationship, suggests a strong magnetoelastic coupling as the mechanism for the charge ordering. Our results reveal the first example of a charge order phase among the intercalated TMD family and demonstrate the ability to stabilize charge modulation by introducing electronic correlations, where the charge order is absent in bulk 2H-NbS_{2} compared to other pristine TMDs.
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Affiliation(s)
- Shan Wu
- Department of Physics, University of California Berkeley, California 94720, USA
- Material Sciences Division, Lawrence Berkeley National Lab, Berkeley, California 94720, USA
- Department of Physics, Santa Clara University, Santa Clara, California 95053, USA
| | - Rourav Basak
- Department of Physics, University of California San Diego, San Diego, California 92093, USA
| | - Wenxin Li
- Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA
| | - Jong-Woo Kim
- Advanced Photon Source, Argonne National Laboratories, Lemont, Illinois, USA
| | - Philip J Ryan
- Advanced Photon Source, Argonne National Laboratories, Lemont, Illinois, USA
| | - Donghui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Christie Nelson
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Raul Acevedo-Esteves
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - Shannon C Haley
- Department of Physics, University of California Berkeley, California 94720, USA
| | - James G Analytis
- Department of Physics, University of California Berkeley, California 94720, USA
- CIFAR Quantum Materials, CIFAR, Toronto, Ontario M5G 1M1, Canada
| | - Yu He
- Department of Applied Physics, Yale University, New Haven, Connecticut 06511, USA
| | - Alex Frano
- Department of Physics, University of California San Diego, San Diego, California 92093, USA
| | - Robert J Birgeneau
- Department of Physics, University of California Berkeley, California 94720, USA
- Material Sciences Division, Lawrence Berkeley National Lab, Berkeley, California 94720, USA
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10
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Sakihama Y, Kato T, Sawatdee S, Yakushi Y, Asano J, Hayashi H, Goto Y, Hashimoto M, Hashidoko Y. Isolation of High-Purity Betanin from Red Beet and Elucidation of Its Antioxidant Activity against Peroxynitrite: An in vitro Study. Int J Mol Sci 2023; 24:15411. [PMID: 37895092 PMCID: PMC10607038 DOI: 10.3390/ijms242015411] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
Reactive oxygen species and reactive nitrogen species (RNS) are damaging for many biomolecules. Peroxynitrite (ONOO-) is the most toxic molecular species among RNS. Betalains are known to possess ONOO- scavenging ability. Betanin, a betalain isolated from red beet, possesses antioxidant, anti-inflammatory, and antitumor activities; however, detailed studies of this isolated pigment have not been conducted, owing to its instability under physiological conditions. This study aimed to isolate highly purified betanin from red beetroots using an improved purification method involving deproteinization and citric acid co-precipitation and evaluated its antioxidant activities. The purified betanin thus obtained had a significantly lower isobetanin content than the commercially available betanin dyes. The antioxidant activity of purified betanin examined in the 2,2-diphenyl-1-picrylhydrazyl assay, the direct ONOO- reaction, ONOO--dependent DNA damage, and lipid peroxidation reactions revealed that betanin possessed higher antioxidant capacity than general antioxidants such as ascorbic acid and quercetin. Furthermore, betanin showed indirect and direct cytoprotective effects against H2O2 and ONOO- cytotoxicity, respectively, in cultured mouse fibroblasts. To the best of our knowledge, this is the first study to demonstrate the cytoprotective effects of betanin against ONOO- toxicity. The highly purified betanin obtained in this study will aid in further exploring its physiological functions.
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Affiliation(s)
- Yasuko Sakihama
- Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University, Kita-9 Nishi-9, Kita-ku, Sapporo 0608589, Japan
| | - Takashi Kato
- Graduate School of Agriculture, Hokkaido University, Kita-9 Nishi-9, Kita-ku, Sapporo 0608589, Japan
| | - Sopanat Sawatdee
- School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, 555 Moo 1 Payupnai, Rayong 21210, Thailand
| | - Yo Yakushi
- Graduate School of Agriculture, Hokkaido University, Kita-9 Nishi-9, Kita-ku, Sapporo 0608589, Japan
| | - Junichi Asano
- Graduate School of Agriculture, Hokkaido University, Kita-9 Nishi-9, Kita-ku, Sapporo 0608589, Japan
| | - Hiroyo Hayashi
- Graduate School of Agriculture, Hokkaido University, Kita-9 Nishi-9, Kita-ku, Sapporo 0608589, Japan
| | - Yuya Goto
- Graduate School of Agriculture, Hokkaido University, Kita-9 Nishi-9, Kita-ku, Sapporo 0608589, Japan
| | - Makoto Hashimoto
- Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University, Kita-9 Nishi-9, Kita-ku, Sapporo 0608589, Japan
| | - Yasuyuki Hashidoko
- Division of Applied Bioscience, Research Faculty of Agriculture, Hokkaido University, Kita-9 Nishi-9, Kita-ku, Sapporo 0608589, Japan
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11
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Narayan DM, Hao P, Kurleto R, Berggren BS, Linn AG, Eckberg C, Saraf P, Collini J, Zavalij P, Hashimoto M, Lu D, Fernandes RM, Paglione J, Dessau DS. Potential Lifshitz transition at optimal substitution in nematic pnictide Ba 1-xSr xNi 2As 2. Sci Adv 2023; 9:eadi4966. [PMID: 37851807 PMCID: PMC10584352 DOI: 10.1126/sciadv.adi4966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 09/15/2023] [Indexed: 10/20/2023]
Abstract
BaNi2As2 is a structural analog of the pnictide superconductor BaFe2As2, which, like the iron-based superconductors, hosts a variety of ordered phases including charge density waves (CDWs), electronic nematicity, and superconductivity. Upon isovalent Sr substitution on the Ba site, the charge and nematic orders are suppressed, followed by a sixfold enhancement of the superconducting transition temperature (Tc). To understand the mechanisms responsible for enhancement of Tc, we present high-resolution angle-resolved photoemission spectroscopy (ARPES) measurements of the Ba1-xSrxNi2As2 series, which agree well with our density functional theory (DFT) calculations throughout the substitution range. Analysis of our ARPES-validated DFT results indicates a Lifshitz transition and reasonably nested electron and hole Fermi pockets near optimal substitution where Tc is maximum. These nested pockets host Ni dxz/dyz orbital compositions, which we associate with the enhancement of nematic fluctuations, revealing unexpected connections to the iron-pnictide superconductors. This gives credence to a scenario in which nematic fluctuations drive an enhanced Tc.
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Affiliation(s)
- Dushyant M. Narayan
- Center for Experiments on Quantum Materials, Department of Physics, University of Colorado, Boulder, CO 80309, USA
| | - Peipei Hao
- Center for Experiments on Quantum Materials, Department of Physics, University of Colorado, Boulder, CO 80309, USA
| | - Rafał Kurleto
- Center for Experiments on Quantum Materials, Department of Physics, University of Colorado, Boulder, CO 80309, USA
| | - Bryan S. Berggren
- Center for Experiments on Quantum Materials, Department of Physics, University of Colorado, Boulder, CO 80309, USA
| | - A. Garrison Linn
- Center for Experiments on Quantum Materials, Department of Physics, University of Colorado, Boulder, CO 80309, USA
| | - Christopher Eckberg
- Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, MD 20742, USA
| | - Prathum Saraf
- Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, MD 20742, USA
| | - John Collini
- Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, MD 20742, USA
| | - Peter Zavalij
- Department of Chemistry, University of Maryland, College Park, MD 20742, USA
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Donghui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Rafael M. Fernandes
- School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA
| | - Johnpierre Paglione
- Maryland Quantum Materials Center, Department of Physics, University of Maryland, College Park, MD 20742, USA
- Canadian Institute for Advanced Research, Toronto, ON M5G-1Z8, Canada
| | - Daniel S. Dessau
- Center for Experiments on Quantum Materials, Department of Physics, University of Colorado, Boulder, CO 80309, USA
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12
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Takamatsu Y, Hashimoto M. [Widely Applicable Strategies Against Cancer, Type II Diabetes, and Neurodegenerative Diseases by Means of Rationally Designed Anti-Amyloidogenic Molecules]. Brain Nerve 2023; 75:1143-1148. [PMID: 37849365 DOI: 10.11477/mf.1416202491] [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: 10/19/2023]
Abstract
An increasing number of amyloidogenic proteins are being recognized for their contribution to the progression of various diseases, including cancer, type II diabetes, and neurodegenerative diseases. Detailed analyses of amyloids using cryo-electron microscopy have led to the development of rationally designed inhibitors of amyloid protein aggregation. In this review, we focused on widely applicable strategies against multiple amyloidogenic proteins based on the use of engineered molecules, namely peptidomimetic foldamers, steric zipper inhibitory peptides, di-phenyl-pyrazole derivatives, and chemicals involved in the disaggregation of amyloid fibrils. These strategies could facilitate efficient drug design across disease categories.
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13
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Zhang W, Sunami K, Liu S, Zhuang Z, Sakihama Y, Zhou DY, Suzuki T, Murai Y, Hashimoto M, Hashidoko Y. Accumulation of squalene in filamentous fungi Trichoderma virens PS1-7 in the presence of butenafine hydrochloride, squalene epoxidase inhibitor: biosynthesis of 13C-enriched squalene. Biosci Biotechnol Biochem 2023; 87:1129-1138. [PMID: 37528065 DOI: 10.1093/bbb/zbad102] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/22/2023] [Indexed: 08/03/2023]
Abstract
Squalene is a triterpenoid compound and widely used in various industries such as medicine and cosmetics due to its strong antioxidant and anticancer properties. The purpose of this study is to increase the accumulation of squalene in filamentous fungi using exogeneous butenafine hydrochloride, which is an inhibitor for squalene epoxidase. The detailed settings achieved that the filamentous fungi, Trichoderma virens PS1-7, produced squalene up to 429.93 ± 51.60 mg/L after culturing for 7 days in the medium consisting of potato infusion with glucose at pH 4.0, in the presence of 200 µm butenafine. On the other hand, no squalene accumulation was observed without butenafine. This result indicated that squalene was biosynthesized in the filamentous fungi PS1-7, which can be used as a novel source of squalene. In addition, we successfully obtained highly 13C-enriched squalene by using [U-13C6]-glucose as a carbon source replacing normal glucose.
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Affiliation(s)
- Wen Zhang
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University , Sapporo, Hokkaido, Japan
| | - Kazu Sunami
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University , Sapporo, Hokkaido, Japan
| | - Shuo Liu
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University , Sapporo, Hokkaido, Japan
| | - Zihan Zhuang
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University , Sapporo, Hokkaido, Japan
| | - Yasuko Sakihama
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University , Sapporo, Hokkaido, Japan
| | - Da-Yang Zhou
- The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka, Ibaraki-shi, Osaka, Japan
| | - Takeyuki Suzuki
- The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka, Ibaraki-shi, Osaka, Japan
| | - Yuta Murai
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University , Sapporo, Hokkaido, Japan
| | - Makoto Hashimoto
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University , Sapporo, Hokkaido, Japan
| | - Yasuyuki Hashidoko
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University , Sapporo, Hokkaido, Japan
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14
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Lei S, Allen K, Huang J, Moya JM, Wu TC, Casas B, Zhang Y, Oh JS, Hashimoto M, Lu D, Denlinger J, Jozwiak C, Bostwick A, Rotenberg E, Balicas L, Birgeneau R, Foster MS, Yi M, Sun Y, Morosan E. Weyl nodal ring states and Landau quantization with very large magnetoresistance in square-net magnet EuGa 4. Nat Commun 2023; 14:5812. [PMID: 37726328 PMCID: PMC10509256 DOI: 10.1038/s41467-023-40767-z] [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: 06/14/2023] [Accepted: 08/07/2023] [Indexed: 09/21/2023] Open
Abstract
Magnetic topological semimetals allow for an effective control of the topological electronic states by tuning the spin configuration. Among them, Weyl nodal line semimetals are thought to have the greatest tunability, yet they are the least studied experimentally due to the scarcity of material candidates. Here, using a combination of angle-resolved photoemission spectroscopy and quantum oscillation measurements, together with density functional theory calculations, we identify the square-net compound EuGa4 as a magnetic Weyl nodal ring semimetal, in which the line nodes form closed rings near the Fermi level. The Weyl nodal ring states show distinct Landau quantization with clear spin splitting upon application of a magnetic field. At 2 K in a field of 14 T, the transverse magnetoresistance of EuGa4 exceeds 200,000%, which is more than two orders of magnitude larger than that of other known magnetic topological semimetals. Our theoretical model suggests that the non-saturating magnetoresistance up to 40 T arises as a consequence of the nodal ring state.
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Affiliation(s)
- Shiming Lei
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA.
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA.
| | - Kevin Allen
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Jianwei Huang
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Jaime M Moya
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
- Applied Physics Graduate Program, Rice University, Houston, TX, 77005, USA
| | - Tsz Chun Wu
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Brian Casas
- National High Magnetic Field Laboratory, Tallahase, FL, 32310, USA
| | - Yichen Zhang
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Ji Seop Oh
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
- Department of Physics, University of California, Berkeley, CA, 94720, USA
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Donghui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Jonathan Denlinger
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Chris Jozwiak
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Aaron Bostwick
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Eli Rotenberg
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Luis Balicas
- National High Magnetic Field Laboratory, Tallahase, FL, 32310, USA
- Department of Physics, Florida State University, Tallahassee, FL, 32306, USA
| | - Robert Birgeneau
- Department of Physics, University of California, Berkeley, CA, 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Matthew S Foster
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Ming Yi
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Yan Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.
| | - Emilia Morosan
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA.
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA.
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15
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Kobayashi Y, Sugahara K, Takemoto Y, Tsuda J, Hirose Y, Hashimoto M, Yamashita H. Protective effect of astaxanthin nanoemulsion on mammalian inner ear hair cells. PeerJ 2023; 11:e15562. [PMID: 37701833 PMCID: PMC10494832 DOI: 10.7717/peerj.15562] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 05/24/2023] [Indexed: 09/14/2023] Open
Abstract
Background Aminoglycoside antibiotics are used for treating certain acute infections. However, these drugs cause ototoxicity by inducing inner ear hair cell death. Aims/Objectives We investigated the protective effect of a nanoemulsion of the carotenoid astaxanthin on mammalian inner ear hair cells against neomycin-induced ototoxicity. Material and Methods Dose-response relationship, quantification of hair cell loss, and reactive oxygen species production were assayed in response to neomycin with and without astaxanthin in cultured utricles of CBA/N mice. In addition, auditory brain response (ABR) and hair cell loss after exposure to the nanoformulation and loud noise were examined in vivo in guinea pigs. Results Astaxanthin suppressed neomycin-induced reduction of hair cells by reducing the production of hydroxy radicals. Furthermore, hair cell loss in the second rotation of the cochlea was significantly lower in the astaxanthin group than in the noise-only group. Conclusions and Significance The blood-labyrinth barrier limits the successful delivery of drugs for inner ear complications. However, in the nanoemulsion form, astaxanthin can penetrate the round window (fenestra ovale) membrane, enabling topical administration. Thus, astaxanthin nanoemulsion could be useful in treating ototoxicity in individuals with inner ear complications.
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Affiliation(s)
- Yuki Kobayashi
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Kazuma Sugahara
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Yosuke Takemoto
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Junko Tsuda
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Yoshinobu Hirose
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Makoto Hashimoto
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Hiroshi Yamashita
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
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16
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Fares MB, Alijevic O, Johne S, Overk C, Hashimoto M, Kondylis A, Adame A, Dulize R, Peric D, Nury C, Battey J, Guedj E, Sierro N, Mc Hugh D, Rockenstein E, Kim C, Rissman RA, Hoeng J, Peitsch MC, Masliah E, Mathis C. Nicotine-mediated effects in neuronal and mouse models of synucleinopathy. Front Neurosci 2023; 17:1239009. [PMID: 37719154 PMCID: PMC10501483 DOI: 10.3389/fnins.2023.1239009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 08/08/2023] [Indexed: 09/19/2023] Open
Abstract
Introduction Alpha-synuclein (α-Syn) aggregation, transmission, and contribution to neurotoxicity represent central mechanisms underlying Parkinson's disease. The plant alkaloid "nicotine" was reported to attenuate α-Syn aggregation in different models, but its precise mode of action remains unclear. Methods In this study, we investigated the effect of 2-week chronic nicotine treatment on α-Syn aggregation, neuroinflammation, neurodegeneration, and motor deficits in D-line α-Syn transgenic mice. We also established a novel humanized neuronal model of α-Syn aggregation and toxicity based on treatment of dopaminergic neurons derived from human induced pluripotent stem cells (iPSC) with α-Syn preformed fibrils (PFF) and applied this model to investigate the effects of nicotine and other compounds and their modes of action. Results and discussion Overall, our results showed that nicotine attenuated α-Syn-provoked neuropathology in both models. Moreover, when investigating the role of nicotinic acetylcholine receptor (nAChR) signaling in nicotine's neuroprotective effects in iPSC-derived dopaminergic neurons, we observed that while α4-specific antagonists reduced the nicotine-induced calcium response, α4 agonists (e.g., AZD1446 and anatabine) mediated similar neuroprotective responses against α-Syn PFF-provoked neurodegeneration. Our results show that nicotine attenuates α-Syn-provoked neuropathology in vivo and in a humanized neuronal model of synucleinopathy and that activation of α4β2 nicotinic receptors might mediate these neuroprotective effects.
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Affiliation(s)
| | - Omar Alijevic
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Stephanie Johne
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Cassia Overk
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Makoto Hashimoto
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | | | - Anthony Adame
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Remi Dulize
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Dariusz Peric
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Catherine Nury
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - James Battey
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Emmanuel Guedj
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Nicolas Sierro
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Damian Mc Hugh
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Edward Rockenstein
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Changyoun Kim
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Robert A. Rissman
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Julia Hoeng
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | | | - Eliezer Masliah
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Carole Mathis
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
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17
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Tachrim ZP, Hashinoki M, Wang Z, Wen Z, Zihan Z, Hashimoto M. Mild and selective hydrogen-deuterium exchange for aromatic hydrogen of amines. J Labelled Comp Radiopharm 2023; 66:321-331. [PMID: 37337654 DOI: 10.1002/jlcr.4048] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/26/2023] [Accepted: 05/30/2023] [Indexed: 06/21/2023]
Abstract
The direct electrophilic deuteration of the aromatic moiety in aromatic and aralkyl amines is reported. The acid-catalyzed deuteration is facilitated by deuterated trifluoromethanesulfonic acid, [D]triflic acid, CF3 SO3 D, TfOD, which acts as both the reaction solvent and the source of the deuterium label. The mild conditions enable room temperature hydrogen/deuterium exchange for most of the para-substituted aromatic amine derivatives studied. In addition, short reaction times and a high degree of aromatic deuteration are achieved and isolation of the product is simple. The optical activity of the chiral aralkyl amines studied was preserved.
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Affiliation(s)
- Zetryana Puteri Tachrim
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, National Research and Innovation Agency, Kawasan Sains Teknologi (KST) BJ Habibie, South Tangerang, Indonesia
| | - Manami Hashinoki
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Zeping Wang
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Zhang Wen
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Zhuang Zihan
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
| | - Makoto Hashimoto
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Sapporo, Japan
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18
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Liu B, Kuang MQ, Luo Y, Li Y, Hu C, Liu J, Xiao Q, Zheng X, Huai L, Peng S, Wei Z, Shen J, Wang B, Miao Y, Sun X, Ou Z, Cui S, Sun Z, Hashimoto M, Lu D, Jozwiak C, Bostwick A, Rotenberg E, Moreschini L, Lanzara A, Wang Y, Peng Y, Yao Y, Wang Z, He J. Tunable Van Hove Singularity without Structural Instability in Kagome Metal CsTi_{3}Bi_{5}. Phys Rev Lett 2023; 131:026701. [PMID: 37505968 DOI: 10.1103/physrevlett.131.026701] [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] [Received: 12/12/2022] [Revised: 03/24/2023] [Accepted: 06/05/2023] [Indexed: 07/30/2023]
Abstract
In kagome metal CsV_{3}Sb_{5}, multiple intertwined orders are accompanied by both electronic and structural instabilities. These exotic orders have attracted much recent attention, but their origins remain elusive. The newly discovered CsTi_{3}Bi_{5} is a Ti-based kagome metal to parallel CsV_{3}Sb_{5}. Here, we report angle-resolved photoemission experiments and first-principles calculations on pristine and Cs-doped CsTi_{3}Bi_{5} samples. Our results reveal that the van Hove singularity (vHS) in CsTi_{3}Bi_{5} can be tuned in a large energy range without structural instability, different from that in CsV_{3}Sb_{5}. As such, CsTi_{3}Bi_{5} provides a complementary platform to disentangle and investigate the electronic instability with a tunable vHS in kagome metals.
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Affiliation(s)
- Bo Liu
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Min-Quan Kuang
- Chongqing Key Laboratory of Micro & Nano Structure Optoelectronics, and School of Physical Science and Technology, Southwest University, Chongqing 400715, China
| | - Yang Luo
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yongkai Li
- Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, Beijing Institute of Technology, Beijing 100081, China
| | - Cheng Hu
- Material Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Jiarui Liu
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29631, USA
| | - Qian Xiao
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Xiquan Zheng
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Linwei Huai
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shuting Peng
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhiyuan Wei
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jianchang Shen
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Bingqian Wang
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yu Miao
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiupeng Sun
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhipeng Ou
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shengtao Cui
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhe Sun
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Donghui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Chris Jozwiak
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Aaron Bostwick
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Eli Rotenberg
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Luca Moreschini
- Material Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Physics, University of California, Berkeley, Berkeley, California 94720, USA
| | - Alessandra Lanzara
- Material Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Physics, University of California, Berkeley, Berkeley, California 94720, USA
| | - Yao Wang
- Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29631, USA
| | - Yingying Peng
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Yugui Yao
- Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, Beijing Institute of Technology, Beijing 100081, China
| | - Zhiwei Wang
- Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing 100081, China
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, Beijing Institute of Technology, Beijing 100081, China
- Material Science Center, Yangtze Delta Region Academy of Beijing Institute of Technology, Jiaxing 314011, China
| | - Junfeng He
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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19
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Luo Y, Han Y, Liu J, Chen H, Huang Z, Huai L, Li H, Wang B, Shen J, Ding S, Li Z, Peng S, Wei Z, Miao Y, Sun X, Ou Z, Xiang Z, Hashimoto M, Lu D, Yao Y, Yang H, Chen X, Gao HJ, Qiao Z, Wang Z, He J. A unique van Hove singularity in kagome superconductor CsV 3-xTa xSb 5 with enhanced superconductivity. Nat Commun 2023; 14:3819. [PMID: 37369675 DOI: 10.1038/s41467-023-39500-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Van Hove singularity (VHS) has been considered as a driving source for unconventional superconductivity. A VHS in two-dimensional (2D) materials consists of a saddle point connecting electron-like and hole-like bands. In a rare case, when a VHS appears at Fermi level, both electron-like and hole-like conduction can coexist, giving rise to an enhanced density of states as well as an attractive component of Coulomb interaction for unconventional electronic pairing. However, this van Hove scenario is often destroyed by an incorrect chemical potential or competing instabilities. Here, by using angle-resolved photoemission measurements, we report the observation of a VHS perfectly aligned with the Fermi level in a kagome superconductor CsV3-xTaxSb5 (x ~ 0.4), in which a record-high superconducting transition temperature is achieved among all the current variants of AV3Sb5 (A = Cs, Rb, K) at ambient pressure. Doping dependent measurements reveal the important role of van Hove scenario in boosting superconductivity, and spectroscopic-imaging scanning tunneling microscopy measurements indicate a distinct superconducting state in this system.
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Affiliation(s)
- Yang Luo
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yulei Han
- Department of Physics, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Jinjin Liu
- Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing, 100081, China
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, Beijing Institute of Technology, Beijing, 100081, China
| | - Hui Chen
- Beijing National Center for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Zihao Huang
- Beijing National Center for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Linwei Huai
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Hongyu Li
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Bingqian Wang
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Jianchang Shen
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Shuhan Ding
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zeyu Li
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Shuting Peng
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zhiyuan Wei
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yu Miao
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xiupeng Sun
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Zhipeng Ou
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Ziji Xiang
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Donghui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Yugui Yao
- Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing, 100081, China
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, Beijing Institute of Technology, Beijing, 100081, China
| | - Haitao Yang
- Beijing National Center for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Xianhui Chen
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Hong-Jun Gao
- Beijing National Center for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Zhenhua Qiao
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China.
- International Center for Quantum Design of Functional Materials, University of Science and Technology of China, Hefei, Anhui, 230026, China.
| | - Zhiwei Wang
- Centre for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, Beijing, 100081, China.
- Beijing Key Lab of Nanophotonics and Ultrafine Optoelectronic Systems, Beijing Institute of Technology, Beijing, 100081, China.
- Material Science Center, Yangtze Delta Region Academy of Beijing Institute of Technology, Jiaxing, 314011, China.
| | - Junfeng He
- Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui, 230026, China.
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20
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Xu L, Li Y, Fang Y, Zheng H, Shi W, Chen C, Pei D, Lu D, Hashimoto M, Wang M, Yang L, Feng X, Zhang H, Huang F, Xue Q, He K, Liu Z, Chen Y. Topology Hierarchy of Transition Metal Dichalcogenides Built from Quantum Spin Hall Layers. Adv Mater 2023; 35:e2300227. [PMID: 36870326 DOI: 10.1002/adma.202300227] [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] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 02/22/2023] [Indexed: 05/26/2023]
Abstract
The evolution of the physical properties of 2D material from monolayer limit to the bulk reveals unique consequences from dimension confinement and provides a distinct tuning knob for applications. Monolayer 1T'-phase transition metal dichalcogenides (1T'-TMDs) with ubiquitous quantum spin Hall (QSH) states are ideal 2D building blocks of various 3D topological phases. However, the stacking geometry has been previously limited to the bulk 1T'-WTe2 type. Here, the novel 2M-TMDs consisting of translationally stacked 1T'-monolayers are introduced as promising material platforms with tunable inverted bandgaps and interlayer coupling. By performing advanced polarization-dependent angle-resolved photoemission spectroscopy as well as first-principles calculations on the electronic structure of 2M-TMDs, a topology hierarchy is revealed: 2M-WSe2 , MoS2, and MoSe2 are weak topological insulators (WTIs), whereas 2M-WS2 is a strong topological insulator (STI). Further demonstration of topological phase transitions by tunning interlayer distance indicates that band inversion amplitude and interlayer coupling jointly determine different topological states in 2M-TMDs. It is proposed that 2M-TMDs are parent compounds of various exotic phases including topological superconductors and promise great application potentials in quantum electronics due to their flexibility in patterning with 2D materials.
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Affiliation(s)
- Lixuan Xu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, P. R. China
| | - Yiwei Li
- Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, P. R. China
| | - Yuqiang Fang
- State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Huijun Zheng
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
- ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210, P. R. China
| | - Wujun Shi
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
- Center for Transformative Science, ShanghaiTech University, Shanghai, 201210, P. R. China
- Shanghai high repetition rate XFEL and extreme light facility (SHINE), ShanghaiTech University, Shanghai, 201210, P. R. China
| | - Cheng Chen
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Ding Pei
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
- ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210, P. R. China
| | - Donghui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Meixiao Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
- ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210, P. R. China
| | - Lexian Yang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, P. R. China
| | - Xiao Feng
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, P. R. China
| | - Haijun Zhang
- National Laboratory of Solid State Microstructures and School of Physics, Nanjing University, Nanjing, 210093, P. R. China
| | - Fuqiang Huang
- State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Qikun Xue
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, P. R. China
| | - Ke He
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, P. R. China
| | - Zhongkai Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
- ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210, P. R. China
| | - Yulin Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China
- ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210, P. R. China
- Clarendon LaboratoryDepartment of Physics, University of Oxford, Oxford, OX1 3PU, UK
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21
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Wakabayashi H, Sugiyama K, Suzuki S, Sakihama Y, Hashimoto M, Barwood MJ. Influence of acute beetroot juice supplementation on cold-induced vasodilation and fingertip rewarming. Eur J Appl Physiol 2023; 123:495-507. [PMID: 36305974 DOI: 10.1007/s00421-022-05071-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 05/01/2022] [Accepted: 09/27/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE Vasoactive ingredients in beetroot (BR) such as nitrate are known to induce vasodilation in temperate conditions. This study investigated the effect of BR ingestion on cold induced vasodilation (CIVD) and rewarming of finger skin temperature (Tfing) during and after hand immersion in cold water. METHODS Twenty healthy males (mean ± SD; age 22.2 ± 0.7 years, height 172.6 ± 6.0 cm, body mass 61.3 ± 11.7 kg) repeated a hand cold water immersion test twice with prior BR or water beverage ingestion (randomised order). They rested for 2 h in thermoneutral conditions (27 °C, 40% relative humidity) after consuming the beverage, then immersed their non-dominant hand in 8 °C water for 30 min. They then rewarmed their hand in the ambient air for 20 min. Skin temperature at seven body sites, Tfing, finger skin blood flow (SkBFfing), and blood pressure were measured. RESULTS During hand immersion parameters of CIVD (Tfing and SkBFfing) were not different between BR and water conditions although skin temperature gradient from proximal to distal body sites was significantly smaller with BR (P < 0.05). During rewarming, SkBFfing and cutaneous vascular conductance were significantly higher with BR than with water (P < 0.05). The rewarming speed in Tfing and SkBFfing was significantly faster with BR at 15- (BR 1.24 ± 0.22 vs water 1.11 ± 0.26 °C/min) and 20-min rewarming (P < 0.05). Additionally, individuals with slower rewarming speed with water demonstrated accelerated rewarming with BR supplementation. CONCLUSION BR accelerated rewarming in Tfing and SkBFfing after local cold stimulus, whereas, CIVD response during hand cold immersion was not affected by BR ingestion.
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Affiliation(s)
- Hitoshi Wakabayashi
- Laboratory of Environmental Ergonomics, Faculty of Engineering, Hokkaido University, Sapporo, Japan.
| | - Koji Sugiyama
- Laboratory of Environmental Ergonomics, Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - Shinichi Suzuki
- Laboratory of Environmental Ergonomics, Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - Yasuko Sakihama
- Laboratory of Molecular and Ecological Chemistry, Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Makoto Hashimoto
- Laboratory of Molecular and Ecological Chemistry, Faculty of Agriculture, Hokkaido University, Sapporo, Japan
| | - Martin J Barwood
- Faculty of Social and Health Sciences, Leeds Trinity University, Leeds, UK
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22
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Tomita H, Shimojima N, Shimotakahara A, Tamada I, Ishikawa M, Hashimoto M, Tsukizaki A, Miyaguni K, Hirobe S. Vertical Umbilical Incision Achieves Better Cosmesis Than Periumbilical Incision in Neonates and Infants. Cureus 2023; 15:e36589. [PMID: 37095798 PMCID: PMC10122504 DOI: 10.7759/cureus.36589] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2023] [Indexed: 04/26/2023] Open
Abstract
PURPOSE The transumbilical approach is widely used for minimally invasive surgery in children. We compared herein the postoperative cosmesis between two types of transumbilical approach: a vertical incision versus periumbilical incision. METHODS Patients with a transumbilical laparotomy before age one year were prospectively enrolled between January 2018 and December 2020. A vertical incision or periumbilical incision was chosen at the surgeon's discretion. After excluding patients receiving a relaparotomy via another site, a questionnaire about the appearance of the umbilicus was completed by the patients' guardians at postoperative month 6 to assess satisfaction and determine the visual analog scale score. A photograph of the umbilicus was taken while the questionnaire was being administered for later assessment by surgeons blinded to the scar and umbilical shape. RESULTS Forty patients were enrolled; 24 patients received a vertical incision while 16 received a periumbilical incision. The incision length was significantly shorter in the vertical incision group (median: 2.0; range: 1.5-3.0 cm vs. median: 2.75; range: 1.5-3.6 cm) (p = 0.001). The patients' guardians reported significantly higher satisfaction (p = 0.002) and higher scores on the visual analog scale (p = 0.046) in the vertical incision group (n = 22) than in the periumbilical incision group (n = 15). The surgeons' evaluation was associated with significantly more patients with a vertical incision than with a periumbilical incision achieving a cosmetically preferable outcome, including an invisible or fine scar and a normal umbilical shape. CONCLUSION A vertical umbilical incision can provide better postoperative cosmesis than a periumbilical incision.
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Affiliation(s)
- Hirofumi Tomita
- Surgery, Tokyo Metropolitan Children's Medical Center, Tokyo, JPN
| | - Naoki Shimojima
- Surgery, Tokyo Metropolitan Children's Medical Center, Tokyo, JPN
| | | | - Ikkei Tamada
- Plastic and Reconstructive Surgery, Tokyo Metropolitan Children's Medical Center, Tokyo, JPN
| | - Miki Ishikawa
- Surgery, Tokyo Metropolitan Children's Medical Center, Tokyo, JPN
| | - Makoto Hashimoto
- Surgery, Tokyo Metropolitan Children's Medical Center, Tokyo, JPN
| | - Ayano Tsukizaki
- Surgery, Tokyo Metropolitan Children's Medical Center, Tokyo, JPN
| | - Kazuaki Miyaguni
- Surgery, Tokyo Metropolitan Children's Medical Center, Tokyo, JPN
| | - Seiichi Hirobe
- Surgery, Tokyo Metropolitan Children's Medical Center, Tokyo, JPN
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23
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Xu Y, Li Y, Wang C, Han T, Liu H, Sun L, Hong J, Hashimoto M, Wei J. The reciprocal interactions between microglia and T cells in Parkinson's disease: a double-edged sword. J Neuroinflammation 2023; 20:33. [PMID: 36774485 PMCID: PMC9922470 DOI: 10.1186/s12974-023-02723-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 02/08/2023] [Indexed: 02/13/2023] Open
Abstract
In Parkinson's disease (PD), neurotoxic microglia, Th1 cells, and Th17 cells are overactivated. Overactivation of these immune cells exacerbates the disease process and leads to the pathological development of pro-inflammatory cytokines, chemokines, and contact-killing compounds, causing the loss of dopaminergic neurons. So far, we have mainly focused on the role of the specific class of immune cells in PD while neglecting the impact of interactions among immune cells on the disease. Therefore, this review demonstrates the reciprocal interplays between microglia and T cells and the associated subpopulations through cytokine and chemokine production that impair and/or protect the pathological process of PD. Furthermore, potential targets and models of PD neuroinflammation are highlighted to provide the new ideas/directions for future research.
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Affiliation(s)
- Yuxiang Xu
- grid.256922.80000 0000 9139 560XInstitute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, 475004 China ,grid.256922.80000 0000 9139 560XHenan International Joint Laboratory for Nuclear Protein Regulation, Henan Medical School, Henan University, Kaifeng, 475004 China
| | - Yongjie Li
- grid.414360.40000 0004 0605 7104Department of Rehabilitation Medicine, Beijing Jishuitan Hospital Guizhou Hospital, Guizhou Provincial Orthopedics Hospital, Guiyang, China
| | - Changqing Wang
- grid.256922.80000 0000 9139 560XInstitute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, 475004 China
| | - Tingting Han
- grid.256922.80000 0000 9139 560XInstitute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, 475004 China
| | - Haixuan Liu
- grid.256922.80000 0000 9139 560XInstitute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, 475004 China
| | - Lin Sun
- grid.256922.80000 0000 9139 560XHenan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004 Henan China
| | - Jun Hong
- grid.256922.80000 0000 9139 560XInstitute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, 475004 China
| | - Makoto Hashimoto
- grid.272456.00000 0000 9343 3630Tokyo Metropolitan Institute of Medical Science, Tokyo, 156-8506 Japan
| | - Jianshe Wei
- Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, 475004, China. .,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan Medical School, Henan University, Kaifeng, 475004, China.
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24
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Murai Y, Hashimoto M. Heteroaromatic Diazirines Are Essential Building Blocks for Material and Medicinal Chemistry. Molecules 2023; 28:molecules28031408. [PMID: 36771073 PMCID: PMC9921084 DOI: 10.3390/molecules28031408] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/26/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
In materials (polymer) science and medicinal chemistry, heteroaromatic derivatives play the role of the central skeleton in development of novel devices and discovery of new drugs. On the other hand, (3-trifluoromethyl)phenyldiazirine (TPD) is a crucial chemical method for understanding biological processes such as ligand-receptor, nucleic acid-protein, lipid-protein, and protein-protein interactions. In particular, use of TPD has increased in recent materials science to create novel electric and polymer devices with comparative ease and reduced costs. Therefore, a combination of heteroaromatics and (3-trifluoromethyl)diazirine is a promising option for creating better materials and elucidating the unknown mechanisms of action of bioactive heteroaromatic compounds. In this review, a comprehensive synthesis of (3-trifluoromethyl)diazirine-substituted heteroaromatics is described.
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Affiliation(s)
- Yuta Murai
- Graduate School of Life Science, Hokkaido University, Kita 21, Nishi 11, Kita-ku, Sapporo 001-0021, Japan
- Faculty of Advanced Life Science, Hokkaido University, Kita 21, Nishi 11, Kita-ku, Sapporo 001-0021, Japan
- Correspondence: (Y.M.); (M.H.); Tel.: +81-11-706-9030 (Y.M.); +81-11-706-3849 (M.H.)
| | - Makoto Hashimoto
- Division of Applied Bioscience, Graduate School of Agriculture, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo 060-8589, Japan
- Correspondence: (Y.M.); (M.H.); Tel.: +81-11-706-9030 (Y.M.); +81-11-706-3849 (M.H.)
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25
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Matsuura T, Sugahara K, Yamamoto Y, Tsuda J, Hashimoto M, Yamashita H. Prevention of progressive hearing loss in a mouse model of diabetes by oral intake of eicosapentaenoic acid ethyl ester. Acta Otolaryngol 2023; 143:113-120. [PMID: 36722024 DOI: 10.1080/00016489.2023.2170463] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND The prevalence of hearing impairment in patients with diabetes was significantly higher, and the development of preventive methods is desirable. AIMS/OBJECTIVES This study examined the effects of eicosapentaenoic acid (EPA) administration on the prevention of early hearing loss in diabetic mice. MATERIALS AND METHODS Tsumura, Suzuki, Obese Diabetes (TSOD) mice were used as a model of diabetes and Tsumura, Suzuki, Non Obesity (TSNO) mice were used as controls. The animals were divided into three groups: the TSNO group and the TSOD (EPA-) group (provided sunflower oil), and the TSOD (EPA+) group (provided EPA). Auditory brainstem responses (ABRs) were measured and the cochlea was evaluated histologically. RESULTS The TSOD (EPA+) group showed a lower tendency to increase thresholds than the TSOD (EPA-) group. The TSOD (EPA+) group had a significantly lower ABR threshold than the TSOD (EPA-) group from 11 to 14 months of age at 4 kHz. Narrowing of the capillary lumens in the stria vascularis and thickening of the vessel wall in the modiolus were observed in the TSOD (EPA-) group. CONCLUSIONS AND SIGNIFICANCE It was suggested that the suppression of cochlear vascular atherosclerosis by EPA administration in TSOD mice suppressed early age-related hearing loss.
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Affiliation(s)
- Takafumi Matsuura
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube City, Japan
| | - Kazuma Sugahara
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube City, Japan
| | - Yohei Yamamoto
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube City, Japan
| | - Junko Tsuda
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube City, Japan
| | - Makoto Hashimoto
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube City, Japan
| | - Hiroshi Yamashita
- Department of Otolaryngology, Yamaguchi University Graduate School of Medicine, Ube City, Japan
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26
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Hashimoto M, Watari S, Taguchi T, Ishikawa K, Kumamoto T, Okamoto S, Ichinose K. Actinorhodin Biosynthesis Terminates with an Unprecedented Biaryl Coupling Reaction. Angew Chem Int Ed Engl 2023; 62:e202214400. [PMID: 36460615 PMCID: PMC10108166 DOI: 10.1002/anie.202214400] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 09/29/2022] [Revised: 11/26/2022] [Accepted: 12/01/2022] [Indexed: 12/04/2022]
Abstract
A plethora of dimeric natural products exist with diverse chemical structures and biological activities. A major strategy for dimerization is aryl coupling catalyzed by cytochrome P450 or laccase. Actinorhodin (ACT) from Streptomyces coelicolor A3(2) has a dimeric pyranonaphthoquinone structure connected by a C-C bond. In this study, we identified an NmrA-family dimerizing enzyme, ActVA-ORF4, and a cofactor-independent oxidase, ActVA-ORF3, both involved in the last step of ACT biosynthesis. ActVA-ORF4 is a unique NAD(P)H-dependent enzyme that catalyzes the intermolecular C-C bond formation using 8-hydroxydihydrokalafungin (DHK-OH) as the sole substrate. On the other hand, ActVA-ORF3 was found to be a quinone-forming enzyme that produces the coupling substrate, DHK-OH and the final product, ACT. Consequently, the functional assignment of all essential enzymes in the biosynthesis of ACT, one of the best-known model natural products, has been completed.
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Affiliation(s)
- Makoto Hashimoto
- Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo, 202-8585, Japan.,Faculty of Pharmacy, Department of Pharmaceutical Sciences, Musashino University, 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo, 202-8585, Japan
| | - Susumu Watari
- Faculty of Pharmacy, Department of Pharmaceutical Sciences, Musashino University, 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo, 202-8585, Japan
| | - Takaaki Taguchi
- Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo, 202-8585, Japan.,National Institute of Health Sciences, 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa, 210-9501, Japan
| | - Kazuki Ishikawa
- Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo, 202-8585, Japan.,Faculty of Pharmacy, Department of Pharmaceutical Sciences, Musashino University, 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo, 202-8585, Japan
| | - Takuya Kumamoto
- Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City, Hiroshima, 734-8553, Japan
| | - Susumu Okamoto
- National Agriculture and Food Research Organization, 2-1-12 Kannondai, Tsukuba, Ibaraki, 305-8642, Japan
| | - Koji Ichinose
- Research Institute of Pharmaceutical Sciences, Musashino University, 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo, 202-8585, Japan.,Faculty of Pharmacy, Department of Pharmaceutical Sciences, Musashino University, 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo, 202-8585, Japan
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27
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Honda M, Shimojima N, Maeda Y, Ito Y, Miyaguni K, Tsukizaki A, Abe K, Hashimoto M, Ishikawa M, Tomita H, Shimotakahara A, Hirobe S. Factors predicting surgical difficulties in congenital biliary dilatation in pediatric patients. Pediatr Surg Int 2023; 39:79. [PMID: 36629958 DOI: 10.1007/s00383-023-05363-8] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/01/2023] [Indexed: 01/12/2023]
Abstract
BACKGROUND The effects of disease classification and the patient's preoperative condition on the difficulty of performing a laparotomy for pediatric congenital biliary dilatation (CBD) have not been fully elucidated. METHODS The present study retrospectively analyzed 46 pediatric CBD laparotomies performed at the study center between March 2010 and December 2021 and predictors of operative time. The patients were separated into a short operative time group (SOT) (≤ 360 min, n = 27) and a long operative time group (LOT) (> 360 min, n = 19). RESULTS The preoperative AST and ALT values were higher, and the bile duct anastomosis diameter was larger, in the LOT. Correlation analysis demonstrated that the maximum cyst diameter, preoperative neutrophil-to-lymphocyte ratio, AST, ALT, AMY, and bile duct anastomosis diameter correlated positively with operative time. Multivariate analysis identified the maximal cyst diameter, preoperative AST, and bile duct anastomosis diameter as significant factors affecting surgical time. Postoperatively, intrapancreatic stones and paralytic ileus were observed in one patient each in the SOT, and mild bile leakage was observed in one patient in the LOT. CONCLUSIONS The maximum cyst diameter, preoperative AST, and bile duct anastomosis diameter have the potential to predict the difficulty of performing a pediatric CBD laparotomy.
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Affiliation(s)
- Masaki Honda
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan.,Department of Pediatric Surgery and Transplantation, Kumamoto University Graduate School of Medical Sciences, Kumamoto, Japan
| | - Naoki Shimojima
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan.
| | - Yutaro Maeda
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Yoshifumi Ito
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Kazuaki Miyaguni
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Ayano Tsukizaki
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Kiyotomo Abe
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Makoto Hashimoto
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Miki Ishikawa
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Hirofumi Tomita
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Akihiro Shimotakahara
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Seiichi Hirobe
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
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Hashimoto M, Watari S, Taguchi T, Ishikawa K, Kumamoto T, Okamoto S, Ichinose K. Actinorhodin Biosynthesis Terminates with an Unprecedented Biaryl Coupling Reaction. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202214400] [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: 12/05/2022]
Affiliation(s)
- Makoto Hashimoto
- Musashino University: Musashino Daigaku Research Institute of Pharmaceutical Sciences 1-1-20, Shinmachi1-1-20 202-8585 Nishitokyo JAPAN
| | - Susumu Watari
- Musashino University: Musashino Daigaku Research Institute of Pharmaceutical Sciences Shinmachi, 1-1-20 202-8585 Nishitokyo JAPAN
| | - Takaaki Taguchi
- NIHS: National Institute of Health Sciences Division of Foods 3-25-26, TonomachiKawasaki-ku 210-9501 Kawasaki JAPAN
| | - Kazuki Ishikawa
- Musashino University: Musashino Daigaku Research Institute of Pharmaceutical Sciences Shinmachi, 1-1-20 202-8585 Nishitokyo JAPAN
| | - Takuya Kumamoto
- Hiroshima University - Kasumi Campus: Hiroshima Daigaku - Kasumi Campus Graduate School of Biomedical and Health Sciences 1-2-3 KasumiMinami-ku 734-8553 Hiroshima JAPAN
| | - Susumu Okamoto
- National Agricultural Research Organisation Institute of Food Research 2-1-12 Kannondai 305-8642 Tsukuba JAPAN
| | - Koji Ichinose
- Musashino University Pharmaceutical Sciences ShinmachiNishitokyo-shi 202-8585 Tokyo JAPAN
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29
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Shimojima N, Shimotakahara A, Tomita H, Maeda Y, Ito Y, Miyaguni K, Tsukizaki A, Abe K, Hashimoto M, Ishikawa M, Honda M, Hirobe S. Simulated slide tracheoplasty for congenital tracheal stenosis using three-dimensional printed models. Pediatr Surg Int 2022; 38:1895-1902. [PMID: 36136117 DOI: 10.1007/s00383-022-05229-5] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/05/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE The slide tracheoplasty (STP) is the standard treatment for severe congenital tracheal stenosis (CTS). Understanding the features of the tracheal stenosis in each case and choosing an appropriate incision design are very important for successfully executing the procedure. The present study aimed to evaluate the advantages of three-dimensional (3D) printed models of the trachea for improving CTS. METHODS Three-D tracheal models were created using computed tomography (CT) data from ten patients undergoing STP for CTS. Simulated surgery was performed using the hollow models after reinforcing with them with a coating of gum spray. Clinical outcomes, including patient survival, postoperative surgical interventions, and time required for STP, were compared with the corresponding values in the last ten patients before the introduction of 3D model simulations. RESULTS All ten patients for whom simulated surgery using a 3D tracheal model were conducted achieved good airway patency after their STP. The surgeons reported feeling that the 3D model simulations were highly effective although there was no significant difference in the clinical outcomes of the groups with or without simulated STP. The models were useful not only for surgical planning but also for sharing important information among the multidisciplinary team and the patients' family. CONCLUSION Our experience using 3D tracheal models demonstrated several features enabling improvement in the surgical treatment of CTS.
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Affiliation(s)
- Naoki Shimojima
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan.
| | - Akihiro Shimotakahara
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Hirofumi Tomita
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Yutaro Maeda
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Yoshifumi Ito
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Kazuaki Miyaguni
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Ayano Tsukizaki
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Kiyotomo Abe
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Makoto Hashimoto
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Miki Ishikawa
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Masaki Honda
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
| | - Seiichi Hirobe
- Department of Surgery, Tokyo Metropolitan Children's Medical Center, 2-8-29 Musashidai, Fuchu, Tokyo, 183-8561, Japan
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30
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Yang Y, Wang G, Zhang S, Wang H, Zhou W, Ren F, Liang H, Wu D, Ji X, Hashimoto M, Wei J. Efficacy and evaluation of therapeutic exercises on adults with Parkinson's disease: a systematic review and network meta-analysis. BMC Geriatr 2022; 22:813. [PMID: 36271367 PMCID: PMC9587576 DOI: 10.1186/s12877-022-03510-9] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 10/08/2022] [Indexed: 11/10/2022] Open
Abstract
Background Exercises are an effective treatment in Parkinson’s disease (PD), but there is still controversy over which types should be used. We aimed to compare and rank the types of exercise that improve PD symptoms by quantifying information from randomised controlled trials. Methods We performed a systematic review and network meta-analysis and searched PubMed, MEDLINE, Embase, PsycINFO, Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, and China National Knowledge Infrastructure (CNKI) from their inception date to June 30, 2022. We included randomized controlled trials of 24 types of exercise for the interventional treatment of adults (≥ 50 years old) with PD. Effect size measures were standardized mean differences (SMDs) with 95% credible intervals (CrIs). The confidence of evidence was examined using Confidence in Network Meta-Analysis (CINeMA). Results We identified 10 474 citations and included 250 studies involving 13 011 participants. Results of NMA showed that power training (PT) had the best benefits for motor symptoms compared with the control group (CON), with SMDs (95% CrI) (-1.46, [-2.18 to -0.74]). Body weight support treadmill training (BWS_TT) showed the best improvement in balance (1.55, [0.72 to 2.37]), gait velocity (1.15 [0.57 to 1.31]) and walking distance (1.96, [1.18 to 2.73]), and robotic assisted gait training (RA_GT) had the most benefits for freezing of gait (-1.09, [-1.80 to -0.38]). For non-motor symptoms, Dance showed the best benefits for depression (-1.71, [-2.79 to -0.73]). Only Yoga significantly reduced anxiety symptom compared with CON (-0.53, [0.96 to -0.11]). Only resistance training (RT) significantly enhanced sleep quality and cognition (-1.42, [-2.60 to -0.23]; 0.51, [0.09 to 0.94]). For muscle strength, PT showed the best advance (1.04, [0.64 to 1.44]). For concern of falling, five types of exercise were more effective than CON. Conclusions There is low quality evidence that PT, Yoga, BWS_TT, Dance, and RT are the most effective treatments, pending outcome of interest, for adults with PD. Trial registration PROSPERO (CRD42021220052). Supplementary Information The online version contains supplementary material available at 10.1186/s12877-022-03510-9.
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Affiliation(s)
- Yong Yang
- Institute for Brain Sciences Research, School of Life Sciences, Shunhe District, Henan University, 85 Minglun Rd, Kaifeng City, 475001, China.,Laboratory of Kinesiology and Rehabilitation, School of Physical Education and Sport, Henan University, Kaifeng, 475001, China
| | - Guotuan Wang
- Laboratory of Kinesiology and Rehabilitation, School of Physical Education and Sport, Henan University, Kaifeng, 475001, China
| | - Shikun Zhang
- Department of Police Physical Education, Jiangsu Police Institute, Nanjing, China
| | - Huan Wang
- Department of Orthopedics, the Second Affiliated Hospital of Air Force Medical University, Xi 'an, China
| | - Wensheng Zhou
- College of Physical Education, Nanjing Xiao-Zhuang University, Nanjing, China
| | - Feifei Ren
- Department of Physical Education, Beijing Language and Culture University, Beijing, China
| | - Huimin Liang
- Institute for Brain Sciences Research, School of Life Sciences, Shunhe District, Henan University, 85 Minglun Rd, Kaifeng City, 475001, China.,Henan Medical School, Parkinson's Disease Research Center, Henan University, Kaifeng, China
| | - Dongdong Wu
- Institute for Brain Sciences Research, School of Life Sciences, Shunhe District, Henan University, 85 Minglun Rd, Kaifeng City, 475001, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan Medical School, Henan University, Kaifeng, China
| | - Xinying Ji
- Institute for Brain Sciences Research, School of Life Sciences, Shunhe District, Henan University, 85 Minglun Rd, Kaifeng City, 475001, China.,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan Medical School, Henan University, Kaifeng, China
| | - Makoto Hashimoto
- Tokyo Metropolitan Institute of Medical Science, Setagaya Ku, 2-1-6 Kamikitazawa, Tokyo, 1560057, Japan
| | - Jianshe Wei
- Institute for Brain Sciences Research, School of Life Sciences, Shunhe District, Henan University, 85 Minglun Rd, Kaifeng City, 475001, China. .,Laboratory of Kinesiology and Rehabilitation, School of Physical Education and Sport, Henan University, Kaifeng, 475001, China. .,Henan Medical School, Parkinson's Disease Research Center, Henan University, Kaifeng, China. .,Henan International Joint Laboratory for Nuclear Protein Regulation, Henan Medical School, Henan University, Kaifeng, China.
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Ikeda T, Hosokawa T, Goto S, Hashimoto M, Nagasaki E, Masuko T. Successful laparoscopic-assisted partial splenectomy and splenopexy with umbilical approach to wandering spleen with an enlarged cyst in a pediatric patient. J Surg Case Rep 2022; 2022:rjac483. [PMID: 36285167 PMCID: PMC9584345 DOI: 10.1093/jscr/rjac483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 09/27/2022] [Indexed: 11/12/2022] Open
Abstract
A 10-year-old girl with a wandering spleen with an enlarged cyst was successfully treated by laparoscopic-assisted partial splenectomy and splenopexy. The patient visited our hospital with a complaint of a lower abdominal mass. Abdominal computed tomography showed malposition of the spleen and the presence of a 10 cm diameter splenic cyst (SC) in the lower pole. In surgery, the navel was opened with an inverted Y-shaped incision. The SC was punctured and aspirated the contents of the cyst, the migrating spleen was pulled out of navel and the partial splenectomy was done. The residual spleen was laparoscopically fixed by creating an extraperitoneal pocket. Pathologically, the cyst was covered with a vitrified fibrotic capsule and was diagnosed as a pseudocyst. We considered it a traumatic cyst. The postoperative course was uneventful. This minimally invasive laparoscopic procedure was feasible and effective for treating wandering spleen with a large SC in a pediatric patient.
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Affiliation(s)
- Taro Ikeda
- Correspondence address. Department of Surgery, Saitama Medical Center, Jichi Medical University, 1-847 Amanuma-cho, Omiya-ku, Saitama 330-8503, Japan. Tel: +81-48-647-2111; Fax: +81-48-658-5800; E-mail:
| | - Takashi Hosokawa
- Department of Pediatric Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Shunpei Goto
- Department of Pediatric Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Makoto Hashimoto
- Department of Pediatric Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Eri Nagasaki
- Department of Pediatric Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Takayuki Masuko
- Department of Pediatric Surgery, Ibaraki Children’s Hospital, Ibaraki, Japan
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Hashimoto M, Zhang W, Tachrim ZP, Tokoro Y, Wang Z, Ishikawa S, Murai Y, Suzuki T. Hydrogen-deuterium exchange of indole-3-propionic acid with deuterated trifluoromethanesulfonic acid. ARKIVOC 2022. [DOI: 10.24820/ark.5550190.p011.836] [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: 11/23/2022] Open
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Ohshiro T, Hashimoto M, Koshima R, Fujita T. [The Role of a Nurse Practitioner in Cardiovascular Surgery at a Japanese Private Hospital]. Kyobu Geka 2022; 75:924-928. [PMID: 36176250] [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: 06/16/2023]
Abstract
Since 2020, our hospital has introduced nurse practitioners( NP) into cardiovascular surgery with the aim to improve labor efficiency. A cardiovascular surgery NP has both pre- and postoperative roles. An NP is not only involved in a necessary intervention but also in an intervention as the first assistant regardless of regular or emergency surgery. By having an NP perform the work normally performed by doctors, a labor burden on doctors is reduced and care administered by the medical team is smoothened. This study reports the role of NPs in the field of cardiovascular surgery in private hospitals.
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Affiliation(s)
- Tomoya Ohshiro
- Department of Cardiovascular Surgery, Sapporo Heart Center Sapporo Cardiovascular Clinic, Sapporo, Japan
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Lin Y, Wu H, Liu Z, Li J, Cai R, Hashimoto M, Wang L. Additive-free aerobic oxidation of hydroazobenzenes: Access to azobenzenes and epoxidation of enones. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154132] [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: 10/14/2022]
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Hashimoto M, Koshima R. Robotic mitral valve repair for papillary muscle rupture. JTCVS Tech 2022; 15:78-80. [PMID: 36276711 PMCID: PMC9579726 DOI: 10.1016/j.xjtc.2022.07.011] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/11/2022] [Accepted: 07/11/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Makoto Hashimoto
- Address for reprints: Makoto Hashimoto, MD, PhD, Department of Cardiovascular Surgery, Center of Minimally Invasive Cardiac Surgery, Sapporo Cardiovascular Clinic, N 49, E 16, 8-1, Higashi Ward, Sapporo, Hokkaido 007-0849, Japan.
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Sato K, Takayama KI, Hashimoto M, Inoue S. Transcriptional and Post-Transcriptional Regulations of Amyloid-β Precursor Protein (APP ) mRNA. Front Aging 2022; 2:721579. [PMID: 35822056 PMCID: PMC9261399 DOI: 10.3389/fragi.2021.721579] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 07/28/2021] [Indexed: 01/01/2023]
Abstract
Alzheimer’s disease (AD) is an age-associated neurodegenerative disorder characterized by progressive impairment of memory, thinking, behavior, and dementia. Based on ample evidence showing neurotoxicity of amyloid-β (Aβ) aggregates in AD, proteolytically derived from amyloid precursor protein (APP), it has been assumed that misfolding of Aβ plays a crucial role in the AD pathogenesis. Additionally, extra copies of the APP gene caused by chromosomal duplication in patients with Down syndrome can promote AD pathogenesis, indicating the pathological involvement of the APP gene dose in AD. Furthermore, increased APP expression due to locus duplication and promoter mutation of APP has been found in familial AD. Given this background, we aimed to summarize the mechanism underlying the upregulation of APP expression levels from a cutting-edge perspective. We first reviewed the literature relevant to this issue, specifically focusing on the transcriptional regulation of APP by transcription factors that bind to the promoter/enhancer regions. APP expression is also regulated by growth factors, cytokines, and hormone, such as androgen. We further evaluated the possible involvement of post-transcriptional regulators of APP in AD pathogenesis, such as RNA splicing factors. Indeed, alternative splicing isoforms of APP are proposed to be involved in the increased production of Aβ. Moreover, non-coding RNAs, including microRNAs, post-transcriptionally regulate the APP expression. Collectively, elucidation of the novel mechanisms underlying the upregulation of APP would lead to the development of clinical diagnosis and treatment of AD.
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Affiliation(s)
- Kaoru Sato
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Ken-Ichi Takayama
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Makoto Hashimoto
- Department of Basic Technology, Tokyo Metropolitan Institute of Medical Science, Tokyo, Japan
| | - Satoshi Inoue
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
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Hashimoto M. [Various Considerations on Robot-assisted Cardiac Surgery]. Kyobu Geka 2022; 75:569-575. [PMID: 35799494] [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: 06/15/2023]
Abstract
Robot-assisted cardiac surgery offers the most minimally-invasive approach to the surgical treatment of valvular heart disease and coronary artery disease. However, robot-assisted cardiac surgery is still far from being a standardized operation. We believe that with developing robotic technology, in the near future, robotic surgery will certainly play a key role in the field of cardiac surgery, thus tips and pitfalls for introducing robotic cardiac surgery and techniques of it should be described in more detail. After two years of our experience, we have performed about 200-cases of robot-assisted cardiac surgery, including robot-assisted mitral valve repair and minimally invasive coronary artery bypass grafting (CABG). The safety and reliability of those procedures have been well described from outside Japan. However, in Japan, we are still standing at the dawn of the robot-assisted cardiac surgery era, thus various experiences should be published from each institution where the robot-assisted cardiac surgery has already standarized. Here we present our experiences and recent technical consideration of robot-assisted cardiac surgery using the da Vinci Xi surgical system.
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Affiliation(s)
- Makoto Hashimoto
- Department of Cardiovascular Surgery, Sapporo Cardiovascular Clinic, Sapporo, Japan
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Ishikawa K, Hashimoto M, Komatsu K, Taguchi T, Okamoto S, Ichinose K. Characterization of stereospecific enoyl reductase ActVI-ORF2 for pyran ring formation in the actinorhodin biosynthesis of Streptomyces coelicolor A3(2). Bioorg Med Chem Lett 2022; 66:128727. [PMID: 35413414 DOI: 10.1016/j.bmcl.2022.128727] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 11/02/2022]
Abstract
Actinorhodin (ACT) is a benzoisochromanequinone antibiotic produced by Streptomyces coelicolor A3(2), which has served as a favored model organism for comprehensive studies of antibiotic biosynthesis and its regulation. (S)-DNPA undergoes various modifications as an intermediate in the ACT biosynthetic pathway, including enoyl reduction to DDHK. It has been suggested that actVI-ORF2 encodes an enoyl reductase (ER). However, its function has not been characterized in vitro. In this study, biochemical analysis of recombinant ActVI-ORF2 revealed that (S)-DNPA is converted to DDHK in a stereospecific manner with NADPH acting as a cofactor. (R)-DNPA was also reduced to 3-epi-DDHK with the comparable efficacy as (S)-DNPA, suggesting that the stereospecificity of ActVI-ORF2 was not affected by the stereochemistry at the C-3 of DNPA. ActVI-ORF2 is a new example of a discrete ER, which is distantly related to known ERs according to phylogenetic analysis.
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Affiliation(s)
- Kazuki Ishikawa
- Research Institute of Pharmaceutical Sciences, Musashino University 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan
| | - Makoto Hashimoto
- Research Institute of Pharmaceutical Sciences, Musashino University 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan
| | - Kunpei Komatsu
- Research Institute of Pharmaceutical Sciences, Musashino University 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan
| | - Takaaki Taguchi
- Research Institute of Pharmaceutical Sciences, Musashino University 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan; National Institute of Health Sciences 3-25-26, Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan
| | - Susumu Okamoto
- National Agriculture and Food Research Organization 2-1-12 Kannondai, Tsukuba, Ibaraki 305-8642, Japan
| | - Koji Ichinose
- Research Institute of Pharmaceutical Sciences, Musashino University 1-1-20, Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan.
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Ishihama Y, Fukumoto K, Watanabe R, Nakatani S, Tsuda A, Otoshi T, Yamada K, Yamada S, Negoro N, Emoto M, Hashimoto M. Retroperitoneal fibrosis requiring prompt nephrostomy in a case with immunoglobulin A vasculitis. Scand J Rheumatol 2022; 51:419-421. [PMID: 35658823 DOI: 10.1080/03009742.2022.2047312] [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: 10/18/2022]
Affiliation(s)
- Y Ishihama
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Fukumoto
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - R Watanabe
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - S Nakatani
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - A Tsuda
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - T Otoshi
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - K Yamada
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - S Yamada
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - N Negoro
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Emoto
- Department of Metabolism, Endocrinology, and Molecular Medicine, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Hashimoto
- Department of Clinical Immunology, Osaka City University Graduate School of Medicine, Osaka, Japan
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Tsuji H, Kuramoto N, Sasai T, Shirakashi M, Onizawa H, Kitagori K, Akizuki S, Nakashima R, Watanabe R, Onishi A, Murakami K, Yoshifuji H, Tanaka M, Hashimoto M, Ohmura K, Morinobu A. AB0653 The association of autoantibodies with morbidity and mortality of scleroderma renal crisis in Japan. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundThe morbidity of scleroderma renal crisis (SRC) and autoantibodies in systemic sclerosis (SSc) vary by races and regions. Anti-RNA polymerase III is associated with SRC in America and European countries. However, the association of autoantibodies with SRC had not been elucidated in Japan.ObjectivesWe aimed to investigate the association of autoantibodies with morbidity and mortality of SRC in Japan.MethodsThe clinical characteristics and mortality of 330 patients with systemic sclerosis (SSc) at Kyoto University Hospital were retrospectively analyzed, focusing on anti-centromere, anti-RNA polymerase III, anti-topoisomerase I, and anti-U1-RNP. Logistic regression analyses were performed to examine the association of autoantibodies with the development and mortality of SRC. Kaplan-Meier survival analysis was performed comparing the groups classified by autoantibodies.ResultsAnti-centromere (n = 177/318, 56%), anti-topoisomerase I (n = 80/311, 26%), anti-RNA polymerase III (n = 27/204, 13%), and anti-U1-RNP (n = 24/305, 8%) were found in SSc patients (n = 330). SRC was observed in 24 out of 330 SSc patients, including anti-topoisomerase I (n = 12/24, 50%), anti-RNA polymerase III (n = 7/24, 29%), anti-U1-RNP (n = 5/24, 21%), and anti-centromere (n = 3/24, 13%). Anti-U1-RNP (odds ratio [95% confidence interval], 3.63 [1.11–10.2]), anti-RNA polymerase III (3.29 [1.16–8.70]), and anti-topoisomerase I (3.22 [1.37–7.57]) were associated with the development of SRC. All patients with SRC were treated with ACE inhibitors and the 1-year survival rate was 54%. Anti-topoisomerase I was associated with the 1-year mortality of SRC (6.00 [1.11–41.1]). When the survival rate was compared between the patients positive for anti-topoisomerase I (n=12) and negative for anti-topoisomerase I (n=12), the 1-year survival rate was 33% vs 75% (p=0.041), respectively (Figure 1A). Furthermore, the 1-year survival of anti-centromere (100%), anti-RNA polymerase III (83%), and others/not detected (50%) were shown in patients negative for anti-topoisomerase I (Figure 1B).Figure 1.Overall survival of patients with SRC according to the type of autoantibodies.(A) The survival rates in SRC patients who were positive for anti-topoisomerase I (solid line, n = 12) and those who were negative for anti-topoisomerase I (dotted line, n = 12).(B) SRC patients negative for anti-topoisomerase I were classified as patients with anti-RNA polymerase III (dotted line, n = 6), anti-centromere (broken line, n = 2), and others/not detected (chain line, n = 4).ConclusionSpecific SSc-related autoantibodies were associated with the morbidity and mortality in SRC.References[1]Nihtyanova SI, et al. Arthritis Rheumatol 2020;72(3):465-76.[2]Hamaguchi Y, et al. Arthritis Rheumatol 2015;67(4):1045-52.Table 1.Univariate logistic regression analysis for mortality in SRC (n = 24).VariablesOdds ratio (95% CI)P valueAge1.07 (0.99, 1.16)0.08Female sex3.00 (0.32, 66.6)0.38Diffuse/limited (diffuse %)0.25 (0.04, 1.36)0.12BMI0.67 (0.41, 0.93)0.049Modified Rodnan skin score0.95 (0.88, 1.02)0.15Digital ulcer0.52 (0.10, 2.63)0.43Reflux esophagitis0.60 (0.02, 17.1)0.73Pulmonary hypertension7.50 (1.17, 69.2)0.046Pleural effusion7.20 (1.23, 62.0)0.04Glucocorticoid use3.86 (0.65, 32.4)0.16Hemoglobin0.55 (0.25, 1.01)0.09Platelet1.00 (0.98, 1.01)0.44Total protein0.17 (0.02, 0.69)0.04Creatinine0.95 (0.67, 1.24)0.69CRP0.90 (0.67, 1.17)0.46Anti-topoisomerase I6.00 (1.11, 41.1)0.048Anti-centromere7.4x10-9 (--, 0.93)1.00Anti-RNA polymerase III0.36 (0.04, 2.18)0.29Anti-U1-RNP0.74 (0.08, 5.49)0.77Disclosure of InterestsNone declared
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Watanabe R, Okano T, Yamada S, Yamamoto W, Murata K, Murakami K, Ebina K, Maeda Y, Jinno S, Shirasugi I, Son Y, Amuro H, Katayama M, Hara R, Hata K, Yoshikawa A, Hashimoto M. POS0532 DRUG RETENTION OF BIOLOGICS OR JAK INHIBITORS IN PATIENTS WITH DIFFICULT-TO-TREAT RHEUMATOID ARTHRITIS: RESULTS FROM THE ANSWER COHORT. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundDifficult-to-treat rheumatoid arthritis (D2T RA) is defined as RA in which disease activity is uncontrolled despite the use of two or more biologics or Janus kinase inhibitors (JAKi) with different mechanisms of action (MOA).ObjectivesTo explore the optimal treatment strategy for D2T RA, we evaluated the drug retention, efficacy, and reasons for discontinuation of biologics or JAKi used for patients with D2T RA in a longitudinal multicenter cohort.MethodsRA patients with clinical disease activity index (CDAI) >10 despite the use of at least two biologics or JAKi with different MOA and further treated with biologics or JAKi were included. The drug retention rates of biologics (TNFi, IL-6Ri, and CTLA4-Ig) or JAKi were estimated at 12 months using the Kaplan-Meier method and adjusted for potential confounders (age, sex, disease duration, concomitant MTX and PSL use, and the number of switched biologics or JAKi) using Cox proportional hazards models.ResultsA total of 251 treatment courses (TCs) from 167 patients were included (TNFi: 97 TCs, IL-6Ri: 67 TCs, CTLA4-Ig: 27 TCs, JAKi: 60 TCs). Baseline characteristics showed no difference in age, sex, disease duration, ACPA positivity, CDAI, and concomitant MTX and PSL use between the four groups. Drug retention excluding non-toxic reasons and remission was significantly higher in patients treated with JAKi or IL-6Ri than in patients treated with TNFi or CTLA4-Ig (P=0.00172). Multivariate analysis using Cox proportional hazards models demonstrated that discontinuation of the drug was associated with the use of TNFi or CTLA4-Ig (HR: 3.29, 95%CI: 1.15-9.42, P=0.027) and concomitant PSL use (HR: 1.14, 95%CI: 1.04-1.26, P=0.0084). In terms of disease activity evaluated with CDAI, no difference was observed between the four groups at 3 months (P=0.90), at 6 months (P=0.77), and at 12 months (P=0.75).ConclusionIn patients with D2T RA, JAKi or IL-6Ri may have treatment advantages compared with TNFi or CTLA4-Ig.References[1] EULAR definition of difficult-to-treat rheumatoid arthritis.Nagy G, Roodenrijs NMT, Welsing PM, Kedves M, Hamar A, van der Goes MC, Kent A, Bakkers M, Blaas E, Senolt L, Szekanecz Z, Choy E, Dougados M, Jacobs JW, Geenen R, Bijlsma HW, Zink A, Aletaha D, Schoneveld L, van Riel P, Gutermann L, Prior Y, Nikiphorou E, Ferraccioli G, Schett G, Hyrich KL, Mueller-Ladner U, Buch MH, McInnes IB, van der Heijde D, van Laar JM.Ann Rheum Dis. 2021 Jan;80(1):31-35.[2] Prevalence and predictive factors of difficult-to-treat rheumatoid arthritis: the KURAMA cohort.Watanabe R, Hashimoto M, Murata K, Murakami K, Tanaka M, Ohmura K, Ito H, Matsuda S.Immunol Med. 2021 May 25:1-10.Disclosure of InterestsRyu Watanabe Speakers bureau: Eli Lilly, Mitsubishi Tanabe, Pfizer, Sanofi, AbbVie, Asahi Kasei, Eisai, Bristol-Myers Squibb, UCB Japan, Chugai, Janssen, Astellas, Nippon Shinyaku, Daiichi Sankyo, Gilead Sciences Japan, and Boehringer ingelheim., Tadashi Okano Speakers bureau: Asahi Kasei, Astellas, Abbvie, Amgen, Ayumi, Chugai, Daiichi-Sankyo, Eisai, Eli Lilly, Gilead Sciences, Janssen, Kyowa Kirin, Mitsubishi Tanabe, Novartis, Ono, Pfizer, Sanofi, Takeda, UCB, Grant/research support from: Asahi Kasei, Abbvie, Chugai, Eisai, Mitsubishi Tanabe, Shinsuke Yamada: None declared, Wataru Yamamoto: None declared, Koichi Murata Speakers bureau: Eisai Co., Ltd., Chugai Pharmaceutical Co., Ltd.; Asahi Kasei Pharma Corp.; and Mitsubishi Tanabe Pharma Co., and Daiichi Sankyo Co. Ltd., Kosaku Murakami: None declared, Kosuke Ebina Speakers bureau: AbbVie, Amgen, Asahi-Kasei, Astellas, Ayumi, Bristol-Myers Squibb, Chugai, Eisai, Eli Lilly, Janssen, Mitsubishi-Tanabe, Ono Pharmaceutical, Pfizer, Sanofi, and UCB Japan., Grant/research support from: AbbVie, Amgen, Asahi-Kasei, Astellas, Chugai, Eisai, Mitsubishi-Tanabe, Ono Pharmaceutical, Teijin Pharma, and UCB Japan, Yuichi Maeda Speakers bureau: Eli Lilly Japan K.K., Chugai Pharmaceutical Co. Ltd., Pfizer Inc., Bristol Myers Squibb, and Mitsubishi Tanabe Pharma Corporation., Sadao Jinno Speakers bureau: AbbVie G.K., Asahi Kasei Pharma., Bristol-Myers Squibb., Chugai Pharmaceutical Co., Ltd., Eisai Co., Ltd., Eli Lilly Japan K.K., Janssen Pharmaceutical K.K., and Mitsubishi Tanabe Pharma, and Ono Pharmaceutical Co, Iku Shirasugi: None declared, Yonsu Son: None declared, Hideki Amuro Speakers bureau: Chugai Pharmaceutical Co.,Ltd, Masaki Katayama: None declared, Ryota Hara: None declared, Kenichiro Hata Speakers bureau: AbbVie, Asahi-Kasei, Chugai, Janssen, Mitsubishi-Tanabe, Eisai, Ayaka Yoshikawa: None declared, Motomu Hashimoto Grant/research support from: Abbvie, Asahi-Kasei, Brystol-Meyers, Eisai, Eli Lilly, Novartis Pharma.
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Nakano M, Ishiyama H, Kawakami S, Sekiguchi A, Kainuma T, Tsumura H, Hashimoto M, Hasegawa T, Tanaka Y, Katakura T, Murakami Y. PO-1788 Radiomic and dosiomic prediction of biochemical failure after Iodine-125 prostate brachytherapy. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03752-5] [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: 11/16/2022]
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Ho G, Choo PC, Waragai M, Inoue S, Masliah E, Hashimoto M. Reconsideration of Alzheimer's Disease Therapy from a Viewpoint of Amyloidogenic Evolvability. J Alzheimers Dis Rep 2022; 6:207-210. [PMID: 35591950 PMCID: PMC9108623 DOI: 10.3233/adr-210021] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 04/03/2022] [Indexed: 11/26/2022] Open
Abstract
Presuming that Alzheimer's disease (AD) might represent an antagonistic pleiotropic phenomenon derived from the evolvability of multiple amyloidogenic proteins, targeting such proteins simultaneously could enhance therapeutic efficacy. Furthermore, considering that amyloid-β (Aβ) immunotherapies during reproductive life stage might adversely decrease Aβ evolvability in an offspring's brain, the disease-modifying Aβ immunotherapies should be limited to post-reproductive time in lifespan. Thus, current Aβ immunotherapy strategies should be revised accordingly. Given that the "adiponectin paradox" might underlie both amyloidosis and cognitive dysfunction in aging brain, blocking activin signaling situated downstream of the adiponectin paradox might be an alternative strategy to prevent AD.
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Affiliation(s)
- Gilbert Ho
- PCND Neuroscience Research Institute, Poway, CA, USA
| | - Pei Chen Choo
- PCND Neuroscience Research Institute, Poway, CA, USA
| | - Masaaki Waragai
- Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, Japan
| | - Satoshi Inoue
- Department of Systems Aging Science and Medicine, Tokyo Metropolitan Institute of Gerontology, Itabashi-ku, Tokyo, Japan
- Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan
| | - Eliezer Masliah
- Division of Neuroscience, National Institute on Aging, Bethesda, MD, USA
| | - Makoto Hashimoto
- Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, Japan
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Mizuno Y, Shimojima N, Makimoto A, Yokokawa Y, Miyaguni K, Tsukizaki A, Hashimoto M, Ishikawa M, Ishihama H, Tomita H, Shimotakahara A, Yuza Y, Matsuoka K, Kawakubo H, Hirobe S. Primary alveolar rhabdomyosarcoma of the diaphragm requiring proximal gastrectomy. Journal of Pediatric Surgery Case Reports 2022. [DOI: 10.1016/j.epsc.2022.102206] [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: 10/19/2022] Open
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Chen SD, Hashimoto M, He Y, Song D, He JF, Li YF, Ishida S, Eisaki H, Zaanen J, Devereaux TP, Lee DH, Lu DH, Shen ZX. Unconventional spectral signature of T c in a pure d-wave superconductor. Nature 2022; 601:562-567. [PMID: 35082417 DOI: 10.1038/s41586-021-04251-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 11/13/2021] [Indexed: 11/09/2022]
Abstract
In conventional superconductors, the phase transition into a zero-resistance and perfectly diamagnetic state is accompanied by a jump in the specific heat and the opening of a spectral gap1. In the high-transition-temperature (high-Tc) cuprates, although the transport, magnetic and thermodynamic signatures of Tc have been known since the 1980s2, the spectroscopic singularity associated with the transition remains unknown. Here we resolve this long-standing puzzle with a high-precision angle-resolved photoemission spectroscopy (ARPES) study on overdoped (Bi,Pb)2Sr2CaCu2O8+δ (Bi2212). We first probe the momentum-resolved electronic specific heat via spectroscopy and reproduce the specific heat peak at Tc, completing the missing link for a holistic description of superconductivity. Then, by studying the full momentum, energy and temperature evolution of the spectra, we reveal that this thermodynamic anomaly arises from the singular growth of in-gap spectral intensity across Tc. Furthermore, we observe that the temperature evolution of in-gap intensity is highly anisotropic in the momentum space, and the gap itself obeys both the d-wave functional form and particle-hole symmetry. These findings support the scenario that the superconducting transition is driven by phase fluctuations. They also serve as an anchor point for understanding the Fermi arc and pseudogap phenomena in underdoped cuprates.
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Affiliation(s)
- Su-Di Chen
- Department of Applied Physics, Stanford University, Stanford, CA, USA.,Department of Physics, Stanford University, Stanford, CA, USA.,Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, CA, USA.,Kavli Energy NanoScience Institute, University of California, Berkeley, Berkeley, CA, USA
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Yu He
- Department of Applied Physics, Stanford University, Stanford, CA, USA.,Department of Physics, Stanford University, Stanford, CA, USA.,Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, CA, USA.,Department of Applied Physics, Yale University, New Haven, CT, USA
| | - Dongjoon Song
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan.,Center for Correlated Electron Systems, Institute for Basic Science, Seoul, Republic of Korea
| | - Jun-Feng He
- Department of Applied Physics, Stanford University, Stanford, CA, USA.,Department of Physics, Stanford University, Stanford, CA, USA.,Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, CA, USA.,Department of Physics, University of Science and Technology of China, Hefei, China
| | - Ying-Fei Li
- Department of Applied Physics, Stanford University, Stanford, CA, USA.,Department of Physics, Stanford University, Stanford, CA, USA.,Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, CA, USA
| | - Shigeyuki Ishida
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
| | - Hiroshi Eisaki
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
| | - Jan Zaanen
- Institute Lorentz for Theoretical Physics, Leiden University, Leiden, The Netherlands
| | - Thomas P Devereaux
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, CA, USA.,Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
| | - Dung-Hai Lee
- Department of Physics, University of California, Berkeley, Berkeley, CA, USA.,Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Dong-Hui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Zhi-Xun Shen
- Department of Applied Physics, Stanford University, Stanford, CA, USA. .,Department of Physics, Stanford University, Stanford, CA, USA. .,Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, CA, USA.
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46
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Lv BQ, Zong A, Wu D, Rozhkov AV, Fine BV, Chen SD, Hashimoto M, Lu DH, Li M, Huang YB, Ruff JPC, Walko DA, Chen ZH, Hwang I, Su Y, Shen X, Wang X, Han F, Po HC, Wang Y, Jarillo-Herrero P, Wang X, Zhou H, Sun CJ, Wen H, Shen ZX, Wang NL, Gedik N. Unconventional Hysteretic Transition in a Charge Density Wave. Phys Rev Lett 2022; 128:036401. [PMID: 35119886 DOI: 10.1103/physrevlett.128.036401] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/21/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
Hysteresis underlies a large number of phase transitions in solids, giving rise to exotic metastable states that are otherwise inaccessible. Here, we report an unconventional hysteretic transition in a quasi-2D material, EuTe_{4}. By combining transport, photoemission, diffraction, and x-ray absorption measurements, we observe that the hysteresis loop has a temperature width of more than 400 K, setting a record among crystalline solids. The transition has an origin distinct from known mechanisms, lying entirely within the incommensurate charge density wave (CDW) phase of EuTe_{4} with no change in the CDW modulation periodicity. We interpret the hysteresis as an unusual switching of the relative CDW phases in different layers, a phenomenon unique to quasi-2D compounds that is not present in either purely 2D or strongly coupled 3D systems. Our findings challenge the established theories on metastable states in density wave systems, pushing the boundary of understanding hysteretic transitions in a broken-symmetry state.
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Affiliation(s)
- B Q Lv
- Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA
| | - Alfred Zong
- Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA
- University of California at Berkeley, Department of Chemistry, Berkeley, California 94720, USA
| | - D Wu
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - A V Rozhkov
- Institute for Theoretical and Applied Electrodynamics, Russian Academy of Sciences, Moscow 125412, Russia
| | - Boris V Fine
- Laboratory for the Physics of Complex Quantum Systems, Moscow Institute of Physics and Technology, Institutsky pereulok 9, Dolgoprudny 141701, Russia
- Institute for Theoretical Physics, University of Leipzig, Brüderstrasse 16, 04103 Leipzig, Germany
| | - Su-Di Chen
- Department of Applied Physics, Stanford University, Stanford, California 94305, USA
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, California 94025, USA
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Dong-Hui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - M Li
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Y-B Huang
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | | | - Donald A Walko
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Z H Chen
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Inhui Hwang
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Yifan Su
- Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA
| | - Xiaozhe Shen
- SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Xirui Wang
- Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA
| | - Fei Han
- Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, Cambridge, Massachusetts 02139, USA
| | - Hoi Chun Po
- Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA
- Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Yao Wang
- Department of Physics and Astronomy, Clemson University, Clemson, South Carolina 29631, USA
| | - Pablo Jarillo-Herrero
- Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA
| | - Xijie Wang
- SLAC National Accelerator Laboratory, Menlo Park, California, USA
| | - Hua Zhou
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Cheng-Jun Sun
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Haidan Wen
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
- Materials Science Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Zhi-Xun Shen
- Department of Applied Physics, Stanford University, Stanford, California 94305, USA
- Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory and Stanford University, Menlo Park, California 94025, USA
| | - N L Wang
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Beijing Academy of Quantum Information Sciences, Beijing 100913, China
| | - Nuh Gedik
- Massachusetts Institute of Technology, Department of Physics, Cambridge, Massachusetts 02139, USA
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Murai Y, Hashimoto M, Yoshida T, Puteri Tachrim Z. Design and Synthesis of 1,3-Bis(3-(trifluoromethyl)diazirin-3-yl)phenylalanine for Efficient Photo Cross-Linking. HETEROCYCLES 2022. [DOI: 10.3987/com-21-14563] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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48
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Hashimoto M, Wang Z, Ishikawa S, Ohashi F, Sagisaka R, Murai Y, Puteri Tachrim Z, Suzuki T. Novel Synthesis and Properties of Optically Pure N-Trifluoroacetylphenylglycine Hydroxysuccinimide Ester. HETEROCYCLES 2022. [DOI: 10.3987/com-22-s(r)11] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Peng S, Han Y, Pokharel G, Shen J, Li Z, Hashimoto M, Lu D, Ortiz BR, Luo Y, Li H, Guo M, Wang B, Cui S, Sun Z, Qiao Z, Wilson SD, He J. Realizing Kagome Band Structure in Two-Dimensional Kagome Surface States of RV_{6}Sn_{6} (R=Gd, Ho). Phys Rev Lett 2021; 127:266401. [PMID: 35029485 DOI: 10.1103/physrevlett.127.266401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 10/23/2021] [Accepted: 10/27/2021] [Indexed: 06/14/2023]
Abstract
We report angle resolved photoemission experiments on a newly discovered family of kagome metals RV_{6}Sn_{6} (R=Gd, Ho). Intrinsic bulk states and surface states of the vanadium kagome layer are differentiated from those of other atomic sublattices by the real-space resolution of the measurements with a small beam spot. Characteristic Dirac cone, saddle point, and flat bands of the kagome lattice are observed. Our results establish the two-dimensional (2D) kagome surface states as a new platform to investigate the intrinsic kagome physics.
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Affiliation(s)
- Shuting Peng
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yulei Han
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
- Department of Physics, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Ganesh Pokharel
- Materials Department and California Nanosystems Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - Jianchang Shen
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zeyu Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Donghui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
| | - Brenden R Ortiz
- Materials Department and California Nanosystems Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - Yang Luo
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Houchen Li
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Mingyao Guo
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Bingqian Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shengtao Cui
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhe Sun
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhenhua Qiao
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Stephen D Wilson
- Materials Department and California Nanosystems Institute, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - Junfeng He
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Physics and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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50
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Balkhy HH, Nisivaco SM, Hashimoto M, Torregrossa G, Grady K. Robotic Total Endoscopic Coronary Bypass in 570 Patients: Impact of Anastomotic Technique in 2 Eras. Ann Thorac Surg 2021; 114:476-482. [PMID: 34890572 DOI: 10.1016/j.athoracsur.2021.10.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 04/17/2021] [Revised: 09/21/2021] [Accepted: 10/07/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND In coronary bypass grafting, including robotic off-pump totally-endoscopic coronary bypass (TECAB), the anastomotic technique is the most critical part of the procedure. We reviewed results in 570 patients over a 7-year period and compared outcomes between to eras, based on predominant anastomotic technique: connectors versus running suture. METHODS Between 7/2013-12/2020, 570 patients underwent off-pump TECAB. Group-1 (378 patients, 7/2013-8/2018) using predominantly the C-Port Flex ATM distal anastomotic stapler (Aesculap, Tuttlingen Germany), Group-2 (192 patients, 9/2018-12/2020) using predominantly a sutured technique (7-0 PronovaTM, Johnson and Johnson, USA). Retrospective analysis of clinical outcomes was performed. RESULTS Off-pump TECAB was completed in 98.8% (563/570 patients) with an Observed/Expected mortality of 0.6 (6/570 patients). The anastomotic device was used in 89% of 626 grafts in Group-1 and only 11% of 305 grafts in Group-2 (p=0.001). There were no differences in multivessel TECAB (57%vs.53%;p=0.331) or bilateral internal thoracic artery use (50%vs.43%;p=0.127) in Group-1 vs Group-2, respectively. Operative time was shorter in Group-1 (242+84 min vs. 273+88 min;p<0.001). Early clinical outcomes were similar between groups, except for hospital stay which was longer in Group-1 (2.9vs2.3 days;p<0.001). Graft patency was similar (98%vs95%;p=0.295) in Group-1 vs Group-2, respectively. CONCLUSIONS Changing the predominant approach from stapled anastomosis to a sutured technique during robotic TECAB resulted in longer operative times. Both approaches led to excellent outcomes, including graft patency. The shorter operative times conferred by using staplers may flatten the learning curve and facilitate broader adoption of TECAB.
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Affiliation(s)
- Husam H Balkhy
- Department of Cardiothoracic Surgery, University of Chicago Medicine, Chicago, Illinois.
| | - Sarah M Nisivaco
- Department of Cardiothoracic Surgery, University of Chicago Medicine, Chicago, Illinois
| | - Makoto Hashimoto
- Department of Cardiothoracic Surgery, University of Chicago Medicine, Chicago, Illinois
| | - Gianluca Torregrossa
- Department of Cardiothoracic Surgery, University of Chicago Medicine, Chicago, Illinois
| | - Kaitlin Grady
- Department of Cardiothoracic Surgery, University of Chicago Medicine, Chicago, Illinois
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