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Wang HC, Lin CC, Chang CH, Tsai JJ. Case report: dengue fever associated acute macular neuroretinopathy. Front Med (Lausanne) 2024; 11:1379429. [PMID: 38585152 PMCID: PMC10995331 DOI: 10.3389/fmed.2024.1379429] [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: 02/03/2024] [Accepted: 03/05/2024] [Indexed: 04/09/2024] Open
Abstract
Dengue fever (DF), which is caused by the dengue virus (DENV) and transmitted through Aedes mosquitoes, is well recognized for its systemic manifestations, with its ocular involvement gaining recent attention. We present a case of a 41-year-old Taiwanese female who developed acute macular neuroretinopathy (AMN) following a DF diagnosis related to DENV-1, emphasizing the need for awareness of this complication. The patient, with a history of completely resolved optic neuritis (ON) and comorbidities, experienced blurred vision on day 10 after the onset of DF. The ophthalmic examination revealed macular edema, ellipsoid zone (EZ) infiltration, and choriocapillaris involvement. Despite pulse therapy with corticosteroids, visual disturbances persisted, highlighting the challenge of managing ocular complications. Ocular manifestations in DF include hemorrhages, inflammation, and vascular complications. DF-associated AMN, a rare presentation, poses challenges in diagnosis and treatment response evaluation. While most patients recover spontaneously, some face persistent visual impairment, especially with AMN. Our case emphasizes the importance of recognizing ocular complications in DF, necessitating a multidisciplinary approach for optimal management and further research to delineate treatment strategies and outcomes.
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Affiliation(s)
- How-Chen Wang
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Ching Lin
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chia-Hsin Chang
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jih-Jin Tsai
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Tropical Medicine Center, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
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2
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Vaz DC, Lin CC, Plombon JJ, Choi WY, Groen I, Arango IC, Chuvilin A, Hueso LE, Nikonov DE, Li H, Debashis P, Clendenning SB, Gosavi TA, Huang YL, Prasad B, Ramesh R, Vecchiola A, Bibes M, Bouzehouane K, Fusil S, Garcia V, Young IA, Casanova F. Voltage-based magnetization switching and reading in magnetoelectric spin-orbit nanodevices. Nat Commun 2024; 15:1902. [PMID: 38429273 PMCID: PMC10907725 DOI: 10.1038/s41467-024-45868-x] [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: 10/11/2023] [Accepted: 02/06/2024] [Indexed: 03/03/2024] Open
Abstract
As CMOS technologies face challenges in dimensional and voltage scaling, the demand for novel logic devices has never been greater, with spin-based devices offering scaling potential, at the cost of significantly high switching energies. Alternatively, magnetoelectric materials are predicted to enable low-power magnetization control, a solution with limited device-level results. Here, we demonstrate voltage-based magnetization switching and reading in nanodevices at room temperature, enabled by exchange coupling between multiferroic BiFeO3 and ferromagnetic CoFe, for writing, and spin-to-charge current conversion between CoFe and Pt, for reading. We show that, upon the electrical switching of the BiFeO3, the magnetization of the CoFe can be reversed, giving rise to different voltage outputs. Through additional microscopy techniques, magnetization reversal is linked with the polarization state and antiferromagnetic cycloid propagation direction in the BiFeO3. This study constitutes the building block for magnetoelectric spin-orbit logic, opening a new avenue for low-power beyond-CMOS technologies.
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Affiliation(s)
- Diogo C Vaz
- CIC nanoGUNE BRTA, 20018, Donostia-San Sebastian, Basque Country, Spain.
| | - Chia-Ching Lin
- Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | - John J Plombon
- Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | - Won Young Choi
- CIC nanoGUNE BRTA, 20018, Donostia-San Sebastian, Basque Country, Spain
- VanaM Inc., 21-1 Doshin-ro 4-gil, Yeongdeungpo-gu, Seoul, Republic of Korea
| | - Inge Groen
- CIC nanoGUNE BRTA, 20018, Donostia-San Sebastian, Basque Country, Spain
| | - Isabel C Arango
- CIC nanoGUNE BRTA, 20018, Donostia-San Sebastian, Basque Country, Spain
| | - Andrey Chuvilin
- CIC nanoGUNE BRTA, 20018, Donostia-San Sebastian, Basque Country, Spain
- IKERBASQUE, Basque Foundation for Science, 48009, Bilbao, Basque Country, Spain
| | - Luis E Hueso
- CIC nanoGUNE BRTA, 20018, Donostia-San Sebastian, Basque Country, Spain
- IKERBASQUE, Basque Foundation for Science, 48009, Bilbao, Basque Country, Spain
| | | | - Hai Li
- Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | | | | | - Tanay A Gosavi
- Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | - Yen-Lin Huang
- Department of Physics, University of California, Berkeley, CA, 94720, USA
| | - Bhagwati Prasad
- Materials Engineering Department, Indian Institute of Science, Bengaluru, 560012, Karnataka, India
| | - Ramamoorthy Ramesh
- Department of Physics, University of California, Berkeley, CA, 94720, USA
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
| | - Aymeric Vecchiola
- Laboratoire Albert Fert, CNRS, Thales, Université Paris-Saclay, 91767, Palaiseau, France
| | - Manuel Bibes
- Laboratoire Albert Fert, CNRS, Thales, Université Paris-Saclay, 91767, Palaiseau, France
| | - Karim Bouzehouane
- Laboratoire Albert Fert, CNRS, Thales, Université Paris-Saclay, 91767, Palaiseau, France
| | - Stephane Fusil
- Laboratoire Albert Fert, CNRS, Thales, Université Paris-Saclay, 91767, Palaiseau, France
| | - Vincent Garcia
- Laboratoire Albert Fert, CNRS, Thales, Université Paris-Saclay, 91767, Palaiseau, France
| | - Ian A Young
- Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | - Fèlix Casanova
- CIC nanoGUNE BRTA, 20018, Donostia-San Sebastian, Basque Country, Spain.
- IKERBASQUE, Basque Foundation for Science, 48009, Bilbao, Basque Country, Spain.
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3
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Chi YC, Lin CC, Chiu TY. Microbiology and Antimicrobial Susceptibility in Adult Dacryocystitis. Clin Ophthalmol 2024; 18:575-582. [PMID: 38414483 PMCID: PMC10898475 DOI: 10.2147/opth.s452707] [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: 12/16/2023] [Accepted: 02/09/2024] [Indexed: 02/29/2024] Open
Abstract
Purpose To investigate the microbiology and antimicrobial susceptibility of dacryocystitis in adults and identify the changing trends over time in Taiwan. Methods This is a single-centered, retrospective study. We retrospectively reviewed adult patients with dacryocystitis from January 2012 to December 2021 in a tertiary medical center in Taiwan. The pathogens and in vitro antimicrobial susceptibility of the pus cultures from the lacrimal sac were collected. Results Thirty-five cultures in acute and 211 cultures in chronic dacryocystitis were collected. Of the 220 isolates, a similar proportion of gram-positive (44%) and gram-negative (43%) aerobes were demonstrated in chronic dacryocystitis and more gram-negative aerobes (50%) than gram-positive aereobes (41%) in acute dacryocystitis. The most common pathogens were methicillin-resistant Staphylococcus aureus (MRSA; 28.1%) and Pseudomonas aeruginosa (28.1%) in acute dacryocystitis, while coagulase-negative Staphylococci was the most common micro-organism in chronic dacryocystitis. The effective antibiotics for gram-positive aerobes were vancomycin (100%), moxifloxacin (88%) and trimethoprim/sulfamethoxazole (78%). Meropenem (95%), amikacin (93%), and levofloxacin (91%) were sensitive to more than 90% of gram-negative aerobes in current study. High resistant species were also isolated in our cohort. Conclusion More gram-negative pathogens and more resistant species are rising in adult dacryocystitis. Understanding the bacteriology and antimicrobial susceptibility of the region is crucial for the empirical antibiotic selection in clinical practice.
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Affiliation(s)
- Yi-Chun Chi
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Ching Lin
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Tzu-Yu Chiu
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Kaohsiung Medical University, Kaohsiung, Taiwan
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4
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Lin CC, Chiu LW, Lee PY, Chen KJ, Cheng KC. Comparison of the correlation between serum autoantibodies against aldehyde dehydrogenase 2 and thyrotropin receptor in patients with Graves' ophthalmopathy. Indian J Ophthalmol 2024; 72:298-299. [PMID: 38273693 PMCID: PMC10941939 DOI: 10.4103/ijo.ijo_673_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024] Open
Affiliation(s)
- Chia-Ching Lin
- Department of Ophthalmology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Li-Wen Chiu
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Po-Yen Lee
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kuo-Jen Chen
- Department of Ophthalmology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
| | - Kai-Chun Cheng
- Department of Ophthalmology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Department of Ophthalmology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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5
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Chen TY, Thang HV, Yi TY, Huang SC, Lin CC, Chang YM, Chen PL, Lin MH, Lee JF, Chen HYT, Hu CC, Chen HY. Operando X-ray Studies of Ni-Containing Heteropolyvanadate Electrode for High-Energy Lithium-Ion Storage Applications. ACS Appl Mater Interfaces 2022; 14:52035-52045. [PMID: 36346965 DOI: 10.1021/acsami.2c16777] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Ni-containing heteropolyvanadate, Na6[NiV14O40], was synthesized for the first time to be applied in high-energy lithium storage applications as a negative electrode material. Na6[NiV14O40] can be prepared via a facile solution process that is suitable for low-cost mass production. The as-prepared electrode provided a high capacity of approximately 700 mAh g-1 without degradation for 400 cycles, indicating excellent cycling stability. The mechanism of charge storage was investigated using operando X-ray absorption spectroscopy (XAS), X-ray diffraction (XRD), transition X-ray microscopy (TXM), and density functional theory (DFT) calculations. The results showed that V5+ was reduced to V2+ during lithiation, indicating that Na6[NiV14O40] is an insertion-type material. In addition, Na6[NiV14O40] maintained its amorphous structure with negligible volume expansion/contraction during cycling. Employed as the negative electrode in a lithium-ion battery (LIB), the Na6[NiV14O40]//LiFePO4 full cell had a high energy density of 300 W h kg-1. When applied in a lithium-ion capacitor, the Na6[NiV14O40]//expanded mesocarbon microbead full cell displayed energy densities of 218.5 and 47.9 W h kg-1 at power densities of 175.7 and 7774.2 W kg-1, respectively. These findings reveal that the negative electrode material Na6[NiV14O40] is a promising candidate for Li-ion storage applications.
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Affiliation(s)
- Tsung-Yi Chen
- Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu300044, Taiwan
- High Entropy Materials Center, 101, Sec. 2, Kuang-Fu Road, Hsinchu300044, Taiwan
| | - Ho Viet Thang
- The University of Da-Nang, University of Science and Technology, 54 Nguyen Luong Bang, Da Nang550000, Vietnam
| | - Tien-Yu Yi
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu300044, Taiwan
| | - Shao-Chu Huang
- Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu300044, Taiwan
| | - Chia-Ching Lin
- Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu300044, Taiwan
| | - Yu-Ming Chang
- Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu300044, Taiwan
| | - Pei-Lin Chen
- Instrumentation Center, National Tsing Hua University, Hsinchu300044, Taiwan
| | - Ming-Hsien Lin
- Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, National Defense University, Tashi, Taoyuan33551, Taiwan
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center, Hsinchu30076, Taiwan
| | - Hsin-Yi Tiffany Chen
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu300044, Taiwan
- College of Semiconductor Research, National Tsing Hua University, Hsinchu300044, Taiwan
| | - Chi-Chang Hu
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu300044, Taiwan
| | - Han-Yi Chen
- Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu300044, Taiwan
- High Entropy Materials Center, 101, Sec. 2, Kuang-Fu Road, Hsinchu300044, Taiwan
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6
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Wei X, Lin CC, Wu C, Qaiser N, Cai Y, Lu AY, Qi K, Fu JH, Chiang YH, Yang Z, Ding L, Ali OS, Xu W, Zhang W, Hassine MB, Kong J, Chen HY, Tung V. Three-dimensional hierarchically porous MoS 2 foam as high-rate and stable lithium-ion battery anode. Nat Commun 2022; 13:6006. [PMID: 36224249 PMCID: PMC9556660 DOI: 10.1038/s41467-022-33790-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 10/03/2022] [Indexed: 11/09/2022] Open
Abstract
Architected materials that actively respond to external stimuli hold tantalizing prospects for applications in energy storage, wearable electronics, and bioengineering. Molybdenum disulfide, an excellent two-dimensional building block, is a promising candidate for lithium-ion battery anode. However, the stacked and brittle two-dimensional layered structure limits its rate capability and electrochemical stability. Here we report the dewetting-induced manufacturing of two-dimensional molybdenum disulfide nanosheets into a three-dimensional foam with a structural hierarchy across seven orders of magnitude. Our molybdenum disulfide foam provides an interpenetrating network for efficient charge transport, rapid ion diffusion, and mechanically resilient and chemically stable support for electrochemical reactions. These features induce a pseudocapacitive energy storage mechanism involving molybdenum redox reactions, confirmed by in-situ X-ray absorption near edge structure. The extraordinary electrochemical performance of molybdenum disulfide foam outperforms most reported molybdenum disulfide-based Lithium-ion battery anodes and state-of-the-art materials. This work opens promising inroads for various applications where special properties arise from hierarchical architecture.
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Affiliation(s)
- Xuan Wei
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Chia-Ching Lin
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 300, Taiwan
| | - Chuanwan Wu
- Molecular Foundry, Lawrence Berkeley National Lab, Berkeley, California, 94720, USA
| | - Nadeem Qaiser
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Yichen Cai
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Ang-Yu Lu
- Department of Electrical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA
| | - Kai Qi
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Jui-Han Fu
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Tokyo, 113-8656, Japan
| | - Yu-Hsiang Chiang
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Zheng Yang
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Lianhui Ding
- Saudi Aramco, Chemicals R&D Lab at KAUST, Research and Development Center, Thuwal, 23955-6900, Saudi Arabia
| | - Ola S Ali
- Saudi Aramco, Chemicals R&D Lab at KAUST, Research and Development Center, Thuwal, 23955-6900, Saudi Arabia
| | - Wei Xu
- Saudi Aramco, Chemicals R&D Lab at KAUST, Research and Development Center, Thuwal, 23955-6900, Saudi Arabia
| | - Wenli Zhang
- Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, School of Chemical Engineering and Light Industry, Guangdong University of Technology (GDUT), 100 Waihuan Xi Road, Panyu District, Guangzhou, 510006, China
| | - Mohamed Ben Hassine
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Jing Kong
- Department of Electrical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA
| | - Han-Yi Chen
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, 300, Taiwan.
| | - Vincent Tung
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia. .,Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Tokyo, 113-8656, Japan.
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7
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Choi WY, Arango IC, Pham VT, Vaz DC, Yang H, Groen I, Lin CC, Kabir ES, Oguz K, Debashis P, Plombon JJ, Li H, Nikonov DE, Chuvilin A, Hueso LE, Young IA, Casanova F. All-Electrical Spin-to-Charge Conversion in Sputtered Bi xSe 1-x. Nano Lett 2022; 22:7992-7999. [PMID: 36162104 DOI: 10.1021/acs.nanolett.2c03429] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
One of the major obstacles to realizing spintronic devices such as MESO logic devices is the small signal magnitude used for magnetization readout, making it important to find materials with high spin-to-charge conversion efficiency. Although intermixing at the junction of two materials is a widely occurring phenomenon, its influence on material characterization and the estimation of spin-to-charge conversion efficiencies are easily neglected or underestimated. Here, we demonstrate all-electrical spin-to-charge conversion in BixSe1-x nanodevices and show how the conversion efficiency can be overestimated by tens of times depending on the adjacent metal used as a contact. We attribute this to the intermixing-induced compositional change and the properties of a polycrystal that lead to drastic changes in resistivity and spin Hall angle. Strategies to improve the spin-to-charge conversion signal in similar structures for functional devices are discussed.
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Affiliation(s)
- Won Young Choi
- CIC nanoGUNE BRTA, 20018 Donostia-San Sebastián, Basque Country, Spain
| | - Isabel C Arango
- CIC nanoGUNE BRTA, 20018 Donostia-San Sebastián, Basque Country, Spain
| | - Van Tuong Pham
- Univ. Grenoble Alpes, CNRS, Institut Neel, F-38000 Grenoble, France
| | - Diogo C Vaz
- CIC nanoGUNE BRTA, 20018 Donostia-San Sebastián, Basque Country, Spain
| | - Haozhe Yang
- CIC nanoGUNE BRTA, 20018 Donostia-San Sebastián, Basque Country, Spain
| | - Inge Groen
- CIC nanoGUNE BRTA, 20018 Donostia-San Sebastián, Basque Country, Spain
| | - Chia-Ching Lin
- Components Research, Intel Corp., Hillsboro, Oregon 97124, United States
| | - Emily S Kabir
- Components Research, Intel Corp., Hillsboro, Oregon 97124, United States
| | - Kaan Oguz
- Components Research, Intel Corp., Hillsboro, Oregon 97124, United States
| | | | - John J Plombon
- Components Research, Intel Corp., Hillsboro, Oregon 97124, United States
| | - Hai Li
- Components Research, Intel Corp., Hillsboro, Oregon 97124, United States
| | - Dmitri E Nikonov
- Components Research, Intel Corp., Hillsboro, Oregon 97124, United States
| | - Andrey Chuvilin
- CIC nanoGUNE BRTA, 20018 Donostia-San Sebastián, Basque Country, Spain
- IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Basque Country, Spain
| | - Luis E Hueso
- CIC nanoGUNE BRTA, 20018 Donostia-San Sebastián, Basque Country, Spain
- IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Basque Country, Spain
| | - Ian A Young
- Components Research, Intel Corp., Hillsboro, Oregon 97124, United States
| | - Fèlix Casanova
- CIC nanoGUNE BRTA, 20018 Donostia-San Sebastián, Basque Country, Spain
- IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Basque Country, Spain
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8
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Xia D, Lianoglou S, Sandmann T, Calvert M, Suh JH, Thomsen E, Dugas J, Pizzo ME, DeVos SL, Earr TK, Lin CC, Davis S, Ha C, Leung AWS, Nguyen H, Chau R, Yulyaningsih E, Lopez I, Solanoy H, Masoud ST, Liang CC, Lin K, Astarita G, Khoury N, Zuchero JY, Thorne RG, Shen K, Miller S, Palop JJ, Garceau D, Sasner M, Whitesell JD, Harris JA, Hummel S, Gnörich J, Wind K, Kunze L, Zatcepin A, Brendel M, Willem M, Haass C, Barnett D, Zimmer TS, Orr AG, Scearce-Levie K, Lewcock JW, Di Paolo G, Sanchez PE. Novel App knock-in mouse model shows key features of amyloid pathology and reveals profound metabolic dysregulation of microglia. Mol Neurodegener 2022; 17:41. [PMID: 35690868 PMCID: PMC9188195 DOI: 10.1186/s13024-022-00547-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 05/25/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Genetic mutations underlying familial Alzheimer's disease (AD) were identified decades ago, but the field is still in search of transformative therapies for patients. While mouse models based on overexpression of mutated transgenes have yielded key insights in mechanisms of disease, those models are subject to artifacts, including random genetic integration of the transgene, ectopic expression and non-physiological protein levels. The genetic engineering of novel mouse models using knock-in approaches addresses some of those limitations. With mounting evidence of the role played by microglia in AD, high-dimensional approaches to phenotype microglia in those models are critical to refine our understanding of the immune response in the brain. METHODS We engineered a novel App knock-in mouse model (AppSAA) using homologous recombination to introduce three disease-causing coding mutations (Swedish, Arctic and Austrian) to the mouse App gene. Amyloid-β pathology, neurodegeneration, glial responses, brain metabolism and behavioral phenotypes were characterized in heterozygous and homozygous AppSAA mice at different ages in brain and/ or biofluids. Wild type littermate mice were used as experimental controls. We used in situ imaging technologies to define the whole-brain distribution of amyloid plaques and compare it to other AD mouse models and human brain pathology. To further explore the microglial response to AD relevant pathology, we isolated microglia with fibrillar Aβ content from the brain and performed transcriptomics and metabolomics analyses and in vivo brain imaging to measure energy metabolism and microglial response. Finally, we also characterized the mice in various behavioral assays. RESULTS Leveraging multi-omics approaches, we discovered profound alteration of diverse lipids and metabolites as well as an exacerbated disease-associated transcriptomic response in microglia with high intracellular Aβ content. The AppSAA knock-in mouse model recapitulates key pathological features of AD such as a progressive accumulation of parenchymal amyloid plaques and vascular amyloid deposits, altered astroglial and microglial responses and elevation of CSF markers of neurodegeneration. Those observations were associated with increased TSPO and FDG-PET brain signals and a hyperactivity phenotype as the animals aged. DISCUSSION Our findings demonstrate that fibrillar Aβ in microglia is associated with lipid dyshomeostasis consistent with lysosomal dysfunction and foam cell phenotypes as well as profound immuno-metabolic perturbations, opening new avenues to further investigate metabolic pathways at play in microglia responding to AD-relevant pathogenesis. The in-depth characterization of pathological hallmarks of AD in this novel and open-access mouse model should serve as a resource for the scientific community to investigate disease-relevant biology.
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Affiliation(s)
- Dan Xia
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Steve Lianoglou
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Thomas Sandmann
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Meredith Calvert
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Jung H. Suh
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Elliot Thomsen
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Jason Dugas
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Michelle E. Pizzo
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Sarah L. DeVos
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Timothy K. Earr
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Chia-Ching Lin
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Sonnet Davis
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Connie Ha
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Amy Wing-Sze Leung
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Hoang Nguyen
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Roni Chau
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Ernie Yulyaningsih
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Isabel Lopez
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Hilda Solanoy
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Shababa T. Masoud
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Chun-chi Liang
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Karin Lin
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Giuseppe Astarita
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Nathalie Khoury
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Joy Yu Zuchero
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Robert G. Thorne
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
- Department of Pharmaceutics, University of Minnesota, 9-177 Weaver-Densford Hall, 308 Harvard St. SE, Minneapolis, MN 55455 USA
| | - Kevin Shen
- Gladstone Institute of Neurological Disease, San Francisco, CA 94158 USA
- Department of Neurology, University of California, San Francisco, CA 94158 USA
| | - Stephanie Miller
- Gladstone Institute of Neurological Disease, San Francisco, CA 94158 USA
- Department of Neurology, University of California, San Francisco, CA 94158 USA
| | - Jorge J. Palop
- Gladstone Institute of Neurological Disease, San Francisco, CA 94158 USA
- Department of Neurology, University of California, San Francisco, CA 94158 USA
| | | | | | | | | | - Selina Hummel
- German Center for Neurodegenerative Diseases (DZNE) Munich, 81377 Munich, Germany
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Johannes Gnörich
- German Center for Neurodegenerative Diseases (DZNE) Munich, 81377 Munich, Germany
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Karin Wind
- German Center for Neurodegenerative Diseases (DZNE) Munich, 81377 Munich, Germany
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Lea Kunze
- German Center for Neurodegenerative Diseases (DZNE) Munich, 81377 Munich, Germany
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Artem Zatcepin
- German Center for Neurodegenerative Diseases (DZNE) Munich, 81377 Munich, Germany
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Matthias Brendel
- German Center for Neurodegenerative Diseases (DZNE) Munich, 81377 Munich, Germany
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Michael Willem
- Department of Nuclear Medicine, University Hospital of Munich, LMU Munich, Munich, Germany
| | - Christian Haass
- German Center for Neurodegenerative Diseases (DZNE) Munich, 81377 Munich, Germany
- Metabolic Biochemistry, Biomedical Center (BMC), Faculty of Medicine, Ludwig- Maximilians-Universität, München, 81377 Munich, Germany
- Munich Cluster for Systems Neurology (SyNergy), 81377 Munich, Germany
| | - Daniel Barnett
- Appel Alzheimer’s Disease Research Institute, Weill Cornell Medicine, New York, NY USA
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY USA
- Neuroscience Graduate Program, Weill Cornell Medicine, New York, NY USA
| | - Till S. Zimmer
- Appel Alzheimer’s Disease Research Institute, Weill Cornell Medicine, New York, NY USA
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY USA
| | - Anna G. Orr
- Appel Alzheimer’s Disease Research Institute, Weill Cornell Medicine, New York, NY USA
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY USA
- Neuroscience Graduate Program, Weill Cornell Medicine, New York, NY USA
| | - Kimberly Scearce-Levie
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Joseph W. Lewcock
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Gilbert Di Paolo
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
| | - Pascal E. Sanchez
- Denali Therapeutics, Inc., 161 Oyster Point Blvd, South San Francisco, California, 94080 USA
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9
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Liu SF, Kuo CH, Lin CC, Lin HY, Lu CZ, Kang JW, Fey GTK, Chen HY. Biowaste-derived Si@SiOx/C anodes for sustainable lithium-ion batteries. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139580] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Lin CC, Chu HL, Wang YCF, Lei CL. Joint Feature Disentanglement and Hallucination for Few-Shot Image Classification. IEEE Trans Image Process 2021; 30:9245-9258. [PMID: 34739379 DOI: 10.1109/tip.2021.3124322] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Few-shot learning (FSL) refers to the learning task that generalizes from base to novel concepts with only few examples observed during training. One intuitive FSL approach is to hallucinate additional training samples for novel categories. While this is typically done by learning from a disjoint set of base categories with sufficient amount of training data, most existing works did not fully exploit the intra-class information from base categories, and thus there is no guarantee that the hallucinated data would represent the class of interest accordingly. In this paper, we propose Feature Disentanglement and Hallucination Network (FDH-Net), which jointly performs feature disentanglement and hallucination for FSL purposes. More specifically, our FDH-Net is able to disentangle input visual data into class-specific and appearance-specific features. With both data recovery and classification constraints, hallucination of image features for novel categories using appearance information extracted from base categories can be achieved. We perform extensive experiments on two fine-grained datasets (CUB and FLO) and two coarse-grained ones (mini-ImageNet and CIFAR-100). The results confirm that our framework performs favorably against state-of-the-art metric-learning and hallucination-based FSL models.
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11
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Vicente-Arche LM, Bréhin J, Varotto S, Cosset-Cheneau M, Mallik S, Salazar R, Noël P, Vaz DC, Trier F, Bhattacharya S, Sander A, Le Fèvre P, Bertran F, Saiz G, Ménard G, Bergeal N, Barthélémy A, Li H, Lin CC, Nikonov DE, Young IA, Rault JE, Vila L, Attané JP, Bibes M. Spin-Charge Interconversion in KTaO 3 2D Electron Gases. Adv Mater 2021; 33:e2102102. [PMID: 34499763 DOI: 10.1002/adma.202102102] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 07/13/2021] [Indexed: 06/13/2023]
Abstract
Oxide interfaces exhibit a broad range of physical effects stemming from broken inversion symmetry. In particular, they can display non-reciprocal phenomena when time reversal symmetry is also broken, e.g., by the application of a magnetic field. Examples include the direct and inverse Edelstein effects (DEE, IEE) that allow the interconversion between spin currents and charge currents. The DEE and IEE have been investigated in interfaces based on the perovskite SrTiO3 (STO), albeit in separate studies focusing on one or the other. The demonstration of these effects remains mostly elusive in other oxide interface systems despite their blossoming in the last decade. Here, the observation of both the DEE and IEE in a new interfacial two-dimensional electron gas (2DEG) based on the perovskite oxide KTaO3 is reported. 2DEGs are generated by the simple deposition of Al metal onto KTaO3 single crystals, characterized by angle-resolved photoemission spectroscopy and magnetotransport, and shown to display the DEE through unidirectional magnetoresistance and the IEE by spin-pumping experiments. Their spin-charge interconversion efficiency is then compared with that of STO-based interfaces, related to the 2DEG electronic structure, and perspectives are given for the implementation of KTaO3 2DEGs into spin-orbitronic devices is compared.
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Affiliation(s)
- Luis M Vicente-Arche
- Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, Palaiseau, 91767, France
| | - Julien Bréhin
- Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, Palaiseau, 91767, France
| | - Sara Varotto
- Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, Palaiseau, 91767, France
| | - Maxen Cosset-Cheneau
- Université Grenoble Alpes, CEA, CNRS, Grenoble INP, SPINTEC, Grenoble, 38000, France
| | - Srijani Mallik
- Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, Palaiseau, 91767, France
| | - Raphaël Salazar
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, Gif-sur-Yvette Cedex, 91192, France
| | - Paul Noël
- Université Grenoble Alpes, CEA, CNRS, Grenoble INP, SPINTEC, Grenoble, 38000, France
| | - Diogo C Vaz
- Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, Palaiseau, 91767, France
| | - Felix Trier
- Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, Palaiseau, 91767, France
| | - Suvam Bhattacharya
- Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, Palaiseau, 91767, France
| | - Anke Sander
- Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, Palaiseau, 91767, France
| | - Patrick Le Fèvre
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, Gif-sur-Yvette Cedex, 91192, France
| | - François Bertran
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, Gif-sur-Yvette Cedex, 91192, France
| | - Guilhem Saiz
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, 75231, France
| | - Gerbold Ménard
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, 75231, France
| | - Nicolas Bergeal
- Laboratoire de Physique et d'Etude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, 75231, France
| | - Agnès Barthélémy
- Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, Palaiseau, 91767, France
| | - Hai Li
- Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | - Chia-Ching Lin
- Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | | | - Ian A Young
- Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | - Julien E Rault
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, Gif-sur-Yvette Cedex, 91192, France
| | - Laurent Vila
- Université Grenoble Alpes, CEA, CNRS, Grenoble INP, SPINTEC, Grenoble, 38000, France
| | - Jean-Philippe Attané
- Université Grenoble Alpes, CEA, CNRS, Grenoble INP, SPINTEC, Grenoble, 38000, France
| | - Manuel Bibes
- Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, 1 avenue Augustin Fresnel, Palaiseau, 91767, France
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12
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Lee PY, Lin CC, Chiu LY, Lee PY. Bilateral radial keratoneuritis resulting from acanthamoeba keratitis. Kaohsiung J Med Sci 2021; 38:79-80. [PMID: 34528392 DOI: 10.1002/kjm2.12446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 08/09/2021] [Indexed: 11/06/2022] Open
Affiliation(s)
- Po-Yu Lee
- Department of Ophthalmology, Chi-Mei Hospital, Tainan, Taiwan
| | - Chia-Ching Lin
- Department of Ophthalmology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, Taiwan
| | - Li-Yi Chiu
- Department of Ophthalmology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Po-Yen Lee
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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13
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Lee PY, Lai YH, Liu PL, Liu CC, Su CC, Chiu FY, Cheng WC, Hsu SL, Cheng KC, Chiu LY, Kao TE, Lin CC, Chang YC, Wang SC, Li CY. Toxicity of amantadine hydrochloride on cultured bovine cornea endothelial cells. Sci Rep 2021; 11:18514. [PMID: 34531501 PMCID: PMC8445916 DOI: 10.1038/s41598-021-98005-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 09/01/2021] [Indexed: 12/02/2022] Open
Abstract
Amantadine hydrochloride (HCl) is commonly prescribed for treating influenza A virus infection and Parkinson’s disease. Recently, several studies have indicated that the use of amantadine HCl is associated with corneal edema; however, the cytotoxic effect of amantadine HCl has not been investigated. In the present study, the effects of amantadine HCl on cell growth, proliferation, and apoptosis in bovine cornea endothelial cells, and in vitro endothelial permeability were examined. Results showed that lower doses of amantadine HCl do not affect cell growth (≤ 20 μΜ), whereas higher doses of amantadine HCl inhibits cell growth (≥ 50 μΜ), induces apoptosis (2000 μΜ), increases sub-G1 phase growth arrest (2000 μΜ), causes DNA damage (≥ 1000 μΜ), and induces endothelial hyperpermeability (≥ 1000 μΜ) in bovine cornea endothelial cells; additionally, we also found that amantadine HCl attenuates the proliferation (≥ 200 μΜ) and arrests cell cycle at G1 phase (≥ 200 μΜ) in bovine cornea endothelial cells. In the present study, we measured the cytotoxic doses of amantadine HCl on cornea endothelial cells, which might be applied in evaluating the association of corneal edema.
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Affiliation(s)
- Po-Yen Lee
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.,Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Yu-Hung Lai
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.,Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.,Department of Ophthalmology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Po-Len Liu
- Department of Respiratory Therapy, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Ching-Chih Liu
- Department of Ophthalmology, Chi Mei Medical Center, Tainan, 71004, Taiwan
| | - Chia-Cheng Su
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.,Division of Urology, Department of Surgery, Chi-Mei Medical Center, Tainan, 71004, Taiwan.,Department of Senior Citizen Service Management, Chia Nan University of Pharmacy and Science, Tainan, 71710, Taiwan
| | - Fang-Yen Chiu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Wei-Chung Cheng
- Graduate Institute of Biomedical Sciences, and Research Center for Tumor Medical Science, and Drug Development Center, China Medical University, Taichung, 40402, Taiwan
| | - Shiuh-Liang Hsu
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Kai-Chun Cheng
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.,Department of Ophthalmology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.,Department of Ophthalmology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, 81267, Taiwan
| | - Li-Yi Chiu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.,Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.,Department of Ophthalmology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, 80145, Taiwan
| | - Tzu-En Kao
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Chia-Ching Lin
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Yo-Chen Chang
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.,Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.,Department of Ophthalmology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Shu-Chi Wang
- Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan. .,Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
| | - Chia-Yang Li
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan. .,Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
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14
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Chan SL, Lin CC, Chau PH, Takemura N, Fung JTC. Evaluating online learning engagement of nursing students. Nurse Educ Today 2021; 104:104985. [PMID: 34058645 DOI: 10.1016/j.nedt.2021.104985] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 04/20/2021] [Accepted: 05/17/2021] [Indexed: 05/24/2023]
Abstract
BACKGROUND Previous studies suggest that increased learning satisfaction may encourage learning engagement in an online learning environment. OBJECTIVES To evaluate the level of learning engagement and its relationship with students' perceived learning satisfaction in an online clinical nursing elective course. DESIGN A prospective interventional study. SETTINGS A nursing course was converted to an online format because of the coronavirus disease COVID pandemic. PARTICIPANTS Part-time post-registration nursing undergraduates enrolled in an elective online clinical course. METHODS Related teaching and learning strategies were deployed in the course using the Community of Inquiry framework. All students who completed the course were invited to complete an online survey that included a validated Online Student Engagement questionnaire (OSE). Pearson's correlations were used to determine the association between perceived learning satisfaction and learning engagement. A logistic regression model was used to explore the associations of gender, age, working experience and perceived learning satisfaction with higher learning engagement. RESULTS The questionnaires were completed by 56 of 68 students (82%). The Pearson's correlation coefficient between the mean perceived learning satisfaction and OSE scores was 0.75 (p < .001). Twenty-five students (45%) were identified as highly engaged, using a cut-off of ≥3.5 for the mean OSE score. The mean perceived learning satisfaction (SD) score differed significantly between highly engaged and not highly engaged students [4.02 (0.49) vs. 3.27 (0.62), p < .001]. The logistic regression model showed that a greater perceived learning satisfaction [adjusted odds ratio (OR): 17.2, 95% C.I.: 3.46-86.0, p = .001] was associated with an increased likelihood of higher learning engagement, and >1 year of working experience (adjusted OR: 0.11, 95% C.I.: 0.01-0.89, p = .0039) was associated with a decreased likelihood of higher learning engagement. CONCLUSIONS The study findings suggest that perceived learning satisfaction predicts learning engagement among nursing students in this online learning course.
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Affiliation(s)
- S L Chan
- University of Hong Kong School of Nursing, Hong Kong.
| | - C C Lin
- University of Hong Kong School of Nursing, Hong Kong.
| | - P H Chau
- University of Hong Kong School of Nursing, Hong Kong.
| | - N Takemura
- University of Hong Kong School of Nursing, Hong Kong.
| | - J T C Fung
- University of Hong Kong School of Nursing, Hong Kong.
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15
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Lin CC, Lai CH, Lin WS, Lin CS. Severe myocardial bridge presenting as paroxysmal atrioventricular block. J Postgrad Med 2021; 67:171-173. [PMID: 33835057 PMCID: PMC8445129 DOI: 10.4103/jpgm.jpgm_1027_20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 09/02/2020] [Revised: 12/09/2020] [Accepted: 12/24/2020] [Indexed: 11/11/2022] Open
Abstract
Chest pain complicated with electrocardiographic changes is not an uncommon scenario in emergency departments, which should be examined cautiously. We describe a 51-years-old man with a myocardial bridge of coronary artery presenting with simultaneous Mobitz type I atrioventricular block on electrocardiography. Echocardiography excluded valvular abnormality and systolic/diastolic dysfunction. Coronary angiography confirmed the diagnosis of a myocardial bridge at the middle segment of the left anterior descending artery, involving the most dominant septal perforator branch with marked systolic compression. The patient underwent coronary artery bypass grafting surgery and was followed up uneventfully at the outpatient department with medical treatment of diltiazem and clopidogrel. The present case is being reported to highlight that clinicians should be alert to such a congenital abnormality as a potential cause of repeated myocardial infarction and conduction abnormality.
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Affiliation(s)
- CC Lin
- Division of Cardiology, Department of Internal Medicine, Taichung Armed Forces General Hospital, Taichung City, Taiwan
| | - CH Lai
- Division of Cardiology, Department of Internal Medicine, Taichung Armed Forces General Hospital, Taichung City, Taiwan
| | - WS Lin
- Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei City, Taiwan
| | - CS Lin
- Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei City, Taiwan
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16
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Li HJ, Ke FY, Lin CC, Lu MY, Kuo YH, Wang YP, Liang KH, Lin SC, Chang YH, Chen HY, Yang PC, Wu HC. ENO1 Promotes Lung Cancer Metastasis via HGFR and WNT Signaling-Driven Epithelial-to-Mesenchymal Transition. Cancer Res 2021; 81:4094-4109. [PMID: 34145039 DOI: 10.1158/0008-5472.can-20-3543] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/06/2021] [Accepted: 06/15/2021] [Indexed: 11/16/2022]
Abstract
ENO1 (α-enolase) expression is significantly correlated with reduced survival and poor prognosis in many cancer types, including lung cancer. However, the function of ENO1 in carcinogenesis remains elusive. In this study, we found that high expression of ENO1 is present in metastatic lung cancer cell lines and malignant tumors and is associated with poor overall survival of patients with lung cancer. Knockdown of ENO1 decreased cancer cell proliferation and invasiveness, whereas overexpression of ENO1 enhanced these processes. Moreover, ENO1 expression promoted tumor growth in orthotopic models and enhanced lung tumor metastasis in tail-vein injection models. These effects were mediated by upregulation of mesenchymal markers N-cadherin and vimentin and the epithelial-to-mesenchymal transition regulator SLUG, along with concurrent downregulation of E-cadherin. Mechanistically, ENO1 interacted with hepatocyte growth factor receptor (HGFR) and activated HGFR and Wnt signaling via increased phosphorylation of HGFR and the Wnt coreceptor LRP5/6. Activation of these signaling axes decreased GSK3β activity via Src-PI3K-AKT signaling and inactivation of the β-catenin destruction complex to ultimately upregulate SLUG and β-catenin. In addition, we generated a chimeric anti-ENO1 mAb (chENO1-22) that can decrease cancer cell proliferation and invasion. chENO1-22 attenuated cancer cell invasion by inhibiting ENO1-mediated GSK3β inactivation to promote SLUG protein ubiquitination and degradation. Moreover, chENO1-22 prevented lung tumor metastasis and prolonged survival in animal models. Taken together, these findings illuminate the molecular mechanisms underlying the function of ENO1 in lung cancer metastasis and support the therapeutic potential of a novel antibody targeting ENO1 for treating lung cancer. SIGNIFICANCE: This study shows that ENO1 promotes lung cancer metastasis via HGFR and WNT signaling and introduces a novel anti-ENO1 antibody for potential therapeutic use in lung cancer.
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Affiliation(s)
- Hsin-Jung Li
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Feng-Yi Ke
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Chia-Ching Lin
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Mei-Yi Lu
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Yi-Huei Kuo
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
| | - Yi-Ping Wang
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan.,Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan
| | - Kang-Hao Liang
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan.,Biomedical Translation Research Center (BioTReC), Academia Sinica, Taipei, Taiwan
| | - Shin-Chang Lin
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan.,Biomedical Translation Research Center (BioTReC), Academia Sinica, Taipei, Taiwan
| | - Ya-Hsuan Chang
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
| | - Hsuan-Yu Chen
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
| | - Pan-Chyr Yang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan.,Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Han-Chung Wu
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan. .,Biomedical Translation Research Center (BioTReC), Academia Sinica, Taipei, Taiwan
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17
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Wei ST, Huang YC, Chiang JY, Lin CC, Lin YJ, Shyu WC, Chen HC, Hsieh CH. Gain of CXCR7 function with mesenchymal stem cell therapy ameliorates experimental arthritis via enhancing tissue regeneration and immunomodulation. Stem Cell Res Ther 2021; 12:314. [PMID: 34051857 PMCID: PMC8164772 DOI: 10.1186/s13287-021-02402-w] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 05/19/2021] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND The major barriers to mesenchymal stem cell (MSC) therapy in rheumatoid arthritis (RA) are a low extent of tissue regeneration and insufficient immunomodulation after cell transplantation. In addition, the role of C-X-C chemokine receptor type 7 (CXCR7) and its mechanism of action in MSC-mediated osteogenic or chondrogenic differentiation and immunomodulation are unclear. METHODS Gain of CXCR7 function on human MSCs was carried out by lentiviral vector-mediated CXCR7 overexpression or CXCR7 agonist, TC14012. These cells were determined the role and potential mechanisms for CXCR7-regulated MSC differentiation and immunomodulation using cellular and molecular assays. The therapeutic benefits in RA were investigated in rats with collagen-induced arthritis (CIA). RESULTS CXCR7 was upregulated in MSCs during the induction of osteogenic or chondrogenic differentiation. Blockage of CXCR7 function inhibited osteogenic or chondrogenic differentiation of MSCs whereas gain of CXCR7 function had the opposite effects. Besides, MSCs with CXCR7 gain-of-function facilitated macrophage apoptosis and regulatory T cell differentiation in a co-culture system. Gain of CXCR7 function also promoted the production of anti-inflammatory soluble factors. A gene expression profiling assay and signaling reporter assays revealed that CXCR7 could regulate several candidate genes related to the PPAR, WNT, Hedgehog or Notch pathways, and their signaling activities, which are known to control cell differentiation and immunomodulation. Finally, MSCs with CXCR7 gain-of-function significantly reduced the articular index scores, ankle circumference, radiographic scores, histologic scores, and inflammation in rats with CIA compared with control MSCs. CONCLUSIONS CXCR7 promotes the osteogenic and chondrogenic differentiation of MSCs and MSC-mediated immunomodulation by regulating several signaling pathways and anti-inflammatory soluble factors. MSCs with CXCR7 gain-of-function significantly ameliorate arthritic symptoms in a CIA model.
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Affiliation(s)
- Sung-Tai Wei
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan.,Department of Neurosurgery, China Medical University and Hospital, Taichung, Taiwan
| | - Yen-Chih Huang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan.,Department of Medical Imaging, China Medical University and Hospital, Taichung, Taiwan
| | - Jung-Ying Chiang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan.,Department of Neurosurgery, China Medical University and Hospital, Taichung, Taiwan
| | - Chia-Ching Lin
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Yu-Jung Lin
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Woei-Cherng Shyu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Hui-Chen Chen
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Chia-Hung Hsieh
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan. .,Department of Medical Research, China Medical University Hospital, Taichung, Taiwan. .,Department of Biomedical Informatics, Asia University, Taichung, Taiwan.
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18
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Lee YW, Chuang JY, Lin CC, Paul MC, Das S, Dhar A. High-efficiency picosecond mode-locked laser using a thulium-doped nanoengineered yttrium-alumina-silica fiber as the gain medium. Opt Express 2021; 29:14682-14693. [PMID: 33985185 DOI: 10.1364/oe.422947] [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] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/22/2021] [Indexed: 06/12/2023]
Abstract
We report the theoretical and experimental investigation of a self-starting mode-locked fiber laser with a nanoengineered Tm3+-doped yttrium-alumina-silica (YAS) fiber as the gain medium. The YAS fiber exhibits a higher capability of Tm3+ cluster elimination than commercial silica fibers. The Tm3+ fluorescence properties and YAS dispersion are well characterized. As a result, an efficient picosecond mode-locked fiber laser is demonstrated with a slope efficiency of 14.14% and maximum pulse energy of 1.27 nJ. To the best of our knowledge, this is the first mode-locked fiber laser based on a Tm3+-doped YAS fiber. The experimental observation is also supported by the numerical analysis.
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19
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Griffith SM, Huang WS, Lin CC, Chen YC, Chang KE, Lin TH, Wang SH, Lin NH. Long-range air pollution transport in East Asia during the first week of the COVID-19 lockdown in China. Sci Total Environ 2020; 741:140214. [PMID: 32599400 PMCID: PMC7295523 DOI: 10.1016/j.scitotenv.2020.140214] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/12/2020] [Accepted: 06/12/2020] [Indexed: 05/21/2023]
Abstract
Long-range transport (LRT) of air pollutants from East Asia during the northeast monsoon season impacts several downwind locations. In 2020, the initial COVID-19 lockdowns in China overlapped with Week 3 of the Chinese New Year (CNY) holiday, and an Asian outflow event. Thus, movement of the Chinese populace from city to city was already greatly reduced by the time of the LRT episode, although the reductions in industrial output are less clear. We found NO2 column concentrations were reduced by 24% during the CNY Week 3 this year compared to previous years. The attenuated transport event arrived to northern Taiwan with a PM2.5 concentration <45 μg m-3 and most often <35 μg m-3, which is 2-3 times lower than LRT episodes of similar back-trajectory and synoptic patterns. The whole episode persisted for about 60 h, longer than most LRT episodes from China to Taiwan. CMAQ v5.2.1 modeling of the LRT event with 100% emission and reduced emission scenarios, revealed emissions in China were approximately 50% less than normal periods. Due to the length of the episode and the significant reduction in emissions, Taiwan avoided a PM2.5 surplus of 19.2 μg m-3 on average during the episode, equivalent to a 0.5 μg m-3 reduction for the whole 3-month winter season. Employing the 100% emission model scenario and scaling up to the average episode hours each winter, the PM2.5 surplus delivered via plumes on the northeast monsoon is equivalent to a 0.5 μg m-3 surplus for the whole year.
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Affiliation(s)
| | - Wei-Syun Huang
- Department of Atmospheric Sciences, National Central University, Taoyuan 32001, Taiwan
| | - Chia-Ching Lin
- Center for Environmental Monitoring and Technology, National Central University, Taoyuan 32001, Taiwan
| | - Ying-Chieh Chen
- Center for Environmental Monitoring and Technology, National Central University, Taoyuan 32001, Taiwan
| | - Kuo-En Chang
- Center for Space and Remote Sensing Research, National Central University, Taoyuan 32001, Taiwan
| | - Tang-Huang Lin
- Center for Space and Remote Sensing Research, National Central University, Taoyuan 32001, Taiwan
| | - Sheng-Hsiang Wang
- Department of Atmospheric Sciences, National Central University, Taoyuan 32001, Taiwan
| | - Neng-Huei Lin
- Department of Atmospheric Sciences, National Central University, Taoyuan 32001, Taiwan; Center for Environmental Monitoring and Technology, National Central University, Taoyuan 32001, Taiwan.
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20
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Lin CC, Hsu CT, Liu W, Huang SC, Lin MH, Kortz U, Mougharbel AS, Chen TY, Hu CW, Lee JF, Wang CC, Liao YF, Li LJ, Li L, Peng S, Stimming U, Chen HY. In Operando X-ray Studies of High-Performance Lithium-Ion Storage in Keplerate-Type Polyoxometalate Anodes. ACS Appl Mater Interfaces 2020; 12:40296-40309. [PMID: 32841558 DOI: 10.1021/acsami.0c09344] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Polyoxometalates (POMs) have emerged as potential anode materials for lithium-ion batteries (LIBs) owing to their ability to transfer multiple electrons. Although POM anode materials exhibit notable results in LIBs, their energy-storage mechanisms have not been well-investigated. Here, we utilize various in operando and ex situ techniques to verify the charge-storage mechanisms of a Keplerate-type POM Na2K23{[(MoVI)MoVI5O21(H2O)3(KSO4)]12 [(VIVO)30(H2O)20(SO4)0.5]}·ca200H2O ({Mo72V30}) anode in LIBs. The {Mo72V30} anode provides a high reversible capacity of up to ∼1300 mA h g-1 without capacity fading for up to 100 cycles. The lithium-ion storage mechanism was studied systematically through in operando synchrotron X-ray absorption near-edge structure, ex situ X-ray diffraction, ex situ extended X-ray absorption fine structure, ex situ transmission electron microscopy, in operando synchrotron transmission X-ray microscopy, and in operando Raman spectroscopy. Based on the abovementioned results, we propose that the open hollow-ball structure of the {Mo72V30} molecular cluster serves as an electron/ion sponge that can store a large number of lithium ions and electrons reversibly via multiple and reversible redox reactions (Mo6+ ↔ Mo1+ and V5+/V4+↔ V1+) with fast lithium diffusion kinetics (DLi+: 10-9-10-10 cm2 s-1). No obvious volumetric expansion of the microsized {Mo72V30} particle is observed during the lithiation/delithiation process, which leads to high cycling stability. This study provides comprehensive analytical methods for understanding the lithium-ion storage mechanism of such complicated POMs, which is important for further studies of POM electrodes in energy-storage applications.
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Affiliation(s)
- Chia-Ching Lin
- Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Chi-Ting Hsu
- Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Wenjing Liu
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Shao-Chu Huang
- Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Ming-Hsien Lin
- Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, National Defense University, Taoyuan 334, Taiwan
| | - Ulrich Kortz
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Ali S Mougharbel
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759 Bremen, Germany
| | - Tsan-Yao Chen
- Department of Engineering and System Science, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
| | - Chih-Wei Hu
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu 30013, Taiwan
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu 30013, Taiwan
| | - Chun-Chieh Wang
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu 30013, Taiwan
| | - Yen-Fa Liao
- National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu 30013, Taiwan
| | - Lain-Jong Li
- Physical Science and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955, KSA
| | - Linlin Li
- Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Shengjie Peng
- Jiangsu Key Laboratory of Electrochemical Energy Storage Technologies, College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - Ulrich Stimming
- Chemistry-School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, U.K
| | - Han-Yi Chen
- Department of Materials Science and Engineering, National Tsing Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan
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21
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Parsonnet E, Huang YL, Gosavi T, Qualls A, Nikonov D, Lin CC, Young I, Bokor J, Martin LW, Ramesh R. Toward Intrinsic Ferroelectric Switching in Multiferroic BiFeO_{3}. Phys Rev Lett 2020; 125:067601. [PMID: 32845668 DOI: 10.1103/physrevlett.125.067601] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 06/23/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
Using pulsed ferroelectric measurements, we probe switching dynamics in multiferroic BiFeO_{3}, revealing low-ns switching times and a clear pathway to sub-ns switching. Our data is well described by a nucleation and growth model, which accounts for the various timescales in the switching process, namely (1) the ferroelectric polarization switching (bound-charge) dynamics and (2) the RC-limited movement of free charge in the circuit. Our model shows good agreement with observed data and begins to bridge the gap between experiment and theory, indicating pathways to study ferroelectric switching on intrinsic timescales.
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Affiliation(s)
- Eric Parsonnet
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - Yen-Lin Huang
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
| | - Tanay Gosavi
- Components Research, Intel Corporation, Hillsboro, Oregon 97124, USA
| | - Alexander Qualls
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - Dmitri Nikonov
- Components Research, Intel Corporation, Hillsboro, Oregon 97124, USA
| | - Chia-Ching Lin
- Components Research, Intel Corporation, Hillsboro, Oregon 97124, USA
| | - Ian Young
- Components Research, Intel Corporation, Hillsboro, Oregon 97124, USA
| | - Jeffrey Bokor
- Department of Electrical Engineering and Computer Science, University of California, Berkeley, California 94720, USA
| | - Lane W Martin
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Ramamoorthy Ramesh
- Department of Physics, University of California, Berkeley, California 94720, USA
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
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22
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Prasad B, Huang YL, Chopdekar RV, Chen Z, Steffes J, Das S, Li Q, Yang M, Lin CC, Gosavi T, Nikonov DE, Qiu ZQ, Martin LW, Huey BD, Young I, Íñiguez J, Manipatruni S, Ramesh R. Ultralow Voltage Manipulation of Ferromagnetism. Adv Mater 2020; 32:e2001943. [PMID: 32468701 DOI: 10.1002/adma.202001943] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
Spintronic elements based on spin transfer torque have emerged with potential for on-chip memory, but they suffer from large energy dissipation due to the large current densities required. In contrast, an electric-field-driven magneto-electric storage element can operate with capacitive displacement charge and potentially reach 1-10 µJ cm-2 switching operation. Here, magneto-electric switching of a magnetoresistive element is shown, operating at or below 200 mV, with a pathway to get down to 100 mV. A combination of phase detuning is utilized via isovalent La substitution and thickness scaling in multiferroic BiFeO3 to scale the switching energy density to ≈10 µJ cm-2 . This work provides a template to achieve attojoule-class nonvolatile memories.
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Affiliation(s)
- Bhagwati Prasad
- Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
| | - Yen-Lin Huang
- Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley Laboratory, Berkeley, CA, 94720, USA
| | - Rajesh V Chopdekar
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Zuhuang Chen
- Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
| | - James Steffes
- Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
| | - Sujit Das
- Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
| | - Qian Li
- Department of Physics, University of California, Berkeley, CA, 94720, USA
| | - Mengmeng Yang
- Department of Physics, University of California, Berkeley, CA, 94720, USA
| | - Chia-Ching Lin
- Exploratory Integrated Circuits, Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | - Tanay Gosavi
- Exploratory Integrated Circuits, Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | - Dmitri E Nikonov
- Exploratory Integrated Circuits, Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | - Zi Qiang Qiu
- Department of Physics, University of California, Berkeley, CA, 94720, USA
| | - Lane W Martin
- Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
- Materials Sciences Division, Lawrence Berkeley Laboratory, Berkeley, CA, 94720, USA
| | - Bryan D Huey
- Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
| | - Ian Young
- Exploratory Integrated Circuits, Components Research, Intel Corp., Hillsboro, OR, 97124, USA
| | - Jorge Íñiguez
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), Avenue des Hauts-Fourneaux 5, Esch-sur-Alzette, L-4362, Luxemburg
- Physics and Materials Science Research Unit, University of Luxembourg, 41 Rue du Brill, Belvaux, L-4422, Luxembourg
| | - Sasikanth Manipatruni
- Exploratory Integrated Circuits, Components Research, Intel Corp., Hillsboro, OR, 97124, USA
- Kepler Computing, Hillsboro, OR, 97124, USA
| | - Ramamoorthy Ramesh
- Department of Materials Science and Engineering, University of California, Berkeley, CA, 94720, USA
- Department of Physics, University of California, Berkeley, CA, 94720, USA
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23
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Hsieh YC, Liao YC, Li CH, Lin JC, Weng CJ, Lin CC, Lo CP, Huang KC, Huang JL, Lin CH, Wu TJ, Sheu WH. P5644Hypoglycemic episodes increase the risk of ventricular arrhythmias and sudden cardiac arrest in patients with type 2 diabetes - a nationwide cohort study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0587] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Hypoglycemic episode (HE) increases the risk of cardiovascular mortality. The impact of HE on the risk of sudden death remains unclear. We hypothesized that HE increases the risks of ventricular arrhythmia (VA) and sudden cardiac arrest (SCA), and that anti-diabetic agents (ADAs) causing hypoglycemia also increase the risks of VA and SCA.
Methods
Patients aged ≥20 years with newly diagnosed diabetes were identified from the Taiwan National Insurance Database. HE was defined as the presentation of hypoglycemic coma or specified/unspecified hypoglycemia. For control group, we included diabetic patients without HE, and they were frequency-matched to the HE group at a 4:1 ratio. The primary outcome was the occurrence of any event of VA (including ventricular tachycardia and fibrillation) and SCA during the defined follow-up periods. Multivariate Cox hazards regression model was used to evaluate the hazard ratio (HR) for VA or SCA.
Results
A total of 54,303 diabetic patients were screened with 1,037 of them in the HE group, and 4,148 in the control group. During a mean follow-up period of 3.3±2.5 years, 29 VA/SCA events had occurred. Compared to the control group, the HE group had a higher incidence of VA/SCA (adjusted HR: 2.42, p=0.04). Diabetic patients medicated with insulin for glycemic control increased the risk of VA/SCA compared to those without insulin (adjusted HR: 3.05, p=0.01).
Kaplan-Meier survival curves
Conclusions
HEs in patients with diabetes increased the risks of VA and SCA compared to those without. Their use of insulin also independently increased the risk of VA/SCA.
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Affiliation(s)
- Y C Hsieh
- Taichung Veterans General Hospital, Cardiovascular Center, Taichung, Taiwan
| | - Y C Liao
- Taichung Veterans General Hospital, Cardiovascular Center, Taichung, Taiwan
| | - C H Li
- Taichung Veterans General Hospital, Cardiovascular Center, Taichung, Taiwan
| | - J C Lin
- Chiayi Branch, Taichung Veterans General Hospital, Department of Internal Medicine, Chiayi, Taiwan
| | - C J Weng
- Taichung Veterans General Hospital, Cardiovascular Center, Taichung, Taiwan
| | - C C Lin
- Taichung Veterans General Hospital, Department of Medical Research, Taichung, Taiwan
| | - C P Lo
- Providence University, Department of Financial Engineering, Taichung, Taiwan
| | - K C Huang
- Providence University, Department of Financial Engineering, Taichung, Taiwan
| | - J L Huang
- Taichung Veterans General Hospital, Cardiovascular Center, Taichung, Taiwan
| | - C H Lin
- Taichung Veterans General Hospital, Department of Medical Research, Taichung, Taiwan
| | - T J Wu
- Taichung Veterans General Hospital, Cardiovascular Center, Taichung, Taiwan
| | - W H Sheu
- Taichung Veterans General Hospital, Division of Endocrinology and Metabolism, Department of Medicine, Taichung, Taiwan
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24
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Chen MN, Ho KY, Hung YN, Su CC, Kuan CH, Tai HC, Cheng NC, Lin CC. Pre-treatment quality of life as a predictor of distant metastasis-free survival and overall survival in patients with head and neck cancer who underwent free flap reconstruction. Eur J Oncol Nurs 2019; 41:1-6. [PMID: 31358241 DOI: 10.1016/j.ejon.2019.05.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 05/14/2019] [Accepted: 05/14/2019] [Indexed: 12/22/2022]
Abstract
PURPOSE This study examined the prognostic associations of pre-treatment quality of life (QoL) with overall survival (OS) and distant metastasis-free survival (DFMS) among patients with head and neck cancer (HNC) who underwent free flap reconstruction. METHODS A cohort of 127 HNC patients who received free flap reconstruction between November 2010 and June 2014 at a hospital were recruited. Pre-treatment QoL was measured by the University of Washington Quality of Life Questionnaire, which contains six physical domains, including speech, swallowing, appearance, saliva, taste and chewing, as well as the six social-emotional domains of pain, activity, recreation, shoulder, mood, and anxiety. Cox regression analyses were performed. RESULTS Results showed that pre-treatment QoL was predictive of OS and DMFS. Of the domains, swallowing, chewing, speech, taste, saliva, pain and shoulder were demonstrated to be significant predictors of OS. Additionally, swallowing, chewing, speech, pain and activity were demonstrated making significant contributions to DMFS. CONCLUSION Our data supported that physical domains of pre-treatment QoL were predictors for OS and DFMS in HNC patients with free-flap reconstruction. Longitudinal studies are warranted to clarify the prognostic abilities of social-emotional domains. Information on pre-treatment QoL should be taken into account to individualize care plan for these patients, and hence prolong their survival.
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Affiliation(s)
- M N Chen
- Department of Nursing, National Taiwan University Hospital, Taipei, Taiwan; School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan.
| | - K Y Ho
- School of Nursing, The University of Hong Kong, HKSAR, China.
| | - Y N Hung
- School of Gerontology and Health Management, College of Nursing, Taipei Medical University, Taipei, Taiwan.
| | - C C Su
- Department of Nursing, Chang Gung University of Science and Technology, Chiayi, Taiwan.
| | - C H Kuan
- Graduate Institute of Clinical Research, College of Medicine, National Taiwan University, Taipei, Taiwan; Division of Plastic Surgery, Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.
| | - H C Tai
- Division of Plastic Surgery, Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.
| | - N C Cheng
- Division of Plastic Surgery, Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.
| | - C C Lin
- School of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan; School of Nursing, The University of Hong Kong, HKSAR, China; Alice Ho Miu Ling Nethersole Charity Foundation Professor in Nursing, Hong Kong.
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25
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Hao S, Lu CH, Lin CC, Chen HY, Li L, Wang YB, Feng MX, He Y. [The role and mechanism of 2-deoxyglucose in reversing osimertinib-acquired resistance of non-small cell lung cancer cell line]. Zhonghua Jie He He Hu Xi Za Zhi 2019; 42:198-205. [PMID: 30845397 DOI: 10.3760/cma.j.issn.1001-0939.2019.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the role and mechanism of 2-deoxyglucose (2-dg) in reversing osimertinib- acquired resistance of non-small cell lung cancer(NSCLC)cell line. Methods: The NSCLC line H1975 (purchased from the American Type Culture Collection) was conducted by induction method in vitro to construct the osimertinib-resistance NSCLC cell line H1975-OR. The osimertinib-resistance of H1975-OR cell line was examined by 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, colony-formation assay, Ki67 incorporation assay and the expression of apoptosis-related protein. The glycolysis level was assayed by the lactic acid production measured in the culture medium supernatant of H1975 and H1975-OR. The expression of glycolysis key enzymes (HK2, GLUT1, P-PKM2) and apoptosis-related protein (BIM, Bcl-2) were detected by Western blot. The cells were divided into control group, 2-deoxyglucose (4 mmol/L) monotherapy group, osimertinib (3 μmol/L) monotherapy group and 2-deoxyglucose (4 mmol/L)+ osimertinib (3 μmol/L) combination therapy group, then the apoptosis rate of cells was measured by flow cytometry to evaluate the pro-apoptotic ability of drugs. Date were analyzed by Independent-Samples t-test using SPSS 16.0 statistical software. Results: The glycolysis level of osimertinib-sensitive cell line H1975 was lower than that of osimertinib-resistance cell line H1975-OR [the yield of lactic acid, respectively, was (21.0±0.9) and (26.5±2.8) mmol·L(-1)·10(4)cells(-1), P<0.05]. The osimertinib- acquired resistance of H1975-OR could be reversed by 4 mmol/L 2-deoxyglucose(the IC(50) value of osimertinib in H1975-OR cell line decreased from (7.0±1.9) μmol/L to (1.4±0.1) μmol/L, which was close to the IC(50) value of osimertinib in H1975 cell line (1.0±0.2) μmol/L. The apoptosis rate of H1975-OR was significantly higher in 2-deoxyglucose + osimertinib combination therapy group (26.7±2.4)%, compared to control group (5.1±0.7)%, 2-deoxyglucose monotherapy group (6.1±2.5)% and osimertinib monotherapy group (11.4±2.7)%(all P<0.05). The expression of pro-apoptotic protein BIM in H1975-OR was significantly higher in 2-deoxyglucose+ osimertinib combination therapy group (177.8±28.1)% and the expression of anti-apoptotic protein Bcl-2 in H1975-OR was significantly lower in 2-deoxyglucose+ osimertinib combination therapy group (24.6±5.2)%, compared to control group (100±0)%, all P<0.05. Conclusion: 2-deoxyglucose can reverse the acquired resistance of NSCLC cell line to osimertinib, which may be related to the inhibition of cell glycolysis and the induction of apoptosis.
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Affiliation(s)
- S Hao
- Department of Respiratory Disease, Daping Hospital, Army Military Medical University, Chongqing 400042, China
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Baowaly MK, Lin CC, Liu CL, Chen KT. Synthesizing electronic health records using improved generative adversarial networks. J Am Med Inform Assoc 2019; 26:228-241. [PMID: 30535151 PMCID: PMC7647178 DOI: 10.1093/jamia/ocy142] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [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: 03/22/2018] [Revised: 09/21/2018] [Accepted: 10/24/2018] [Indexed: 11/14/2022] Open
Abstract
Objective The aim of this study was to generate synthetic electronic health records (EHRs). The generated EHR data will be more realistic than those generated using the existing medical Generative Adversarial Network (medGAN) method. Materials and Methods We modified medGAN to obtain two synthetic data generation models-designated as medical Wasserstein GAN with gradient penalty (medWGAN) and medical boundary-seeking GAN (medBGAN)-and compared the results obtained using the three models. We used 2 databases: MIMIC-III and National Health Insurance Research Database (NHIRD), Taiwan. First, we trained the models and generated synthetic EHRs by using these three 3 models. We then analyzed and compared the models' performance by using a few statistical methods (Kolmogorov-Smirnov test, dimension-wise probability for binary data, and dimension-wise average count for count data) and 2 machine learning tasks (association rule mining and prediction). Results We conducted a comprehensive analysis and found our models were adequately efficient for generating synthetic EHR data. The proposed models outperformed medGAN in all cases, and among the 3 models, boundary-seeking GAN (medBGAN) performed the best. Discussion To generate realistic synthetic EHR data, the proposed models will be effective in the medical industry and related research from the viewpoint of providing better services. Moreover, they will eliminate barriers including limited access to EHR data and thus accelerate research on medical informatics. Conclusion The proposed models can adequately learn the data distribution of real EHRs and efficiently generate realistic synthetic EHRs. The results show the superiority of our models over the existing model.
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Affiliation(s)
- Mrinal Kanti Baowaly
- Social Networks and Human-Centered Computing, Taiwan International Graduate Program, Institute of Information Science, Academia Sinica, Taipei, Taiwan
- Department of Computer Science, National Chengchi University, Taipei, Taiwan
| | - Chia-Ching Lin
- Graduate Institute of Electrical Engineering, National Taiwan University, Taipei, Taiwan
- Institute of Information Science, Academia Sinica, Taipei, Taiwan
| | - Chao-Lin Liu
- Department of Computer Science, National Chengchi University, Taipei, Taiwan
| | - Kuan-Ta Chen
- Institute of Information Science, Academia Sinica, Taipei, Taiwan
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Manipatruni S, Nikonov DE, Lin CC, Prasad B, Huang YL, Damodaran AR, Chen Z, Ramesh R, Young IA. Voltage control of unidirectional anisotropy in ferromagnet-multiferroic system. Sci Adv 2018; 4:eaat4229. [PMID: 30480090 PMCID: PMC6251722 DOI: 10.1126/sciadv.aat4229] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 10/25/2018] [Indexed: 05/12/2023]
Abstract
Demonstration of ultralow energy switching mechanisms is imperative for continued improvements in computing devices. Ferroelectric (FE) and multiferroic (MF) order and their manipulation promise an ideal combination of state variables to reach attojoule range for logic and memory (i.e., ~30× lower switching energy than nanoelectronics). In BiFeO3 (BFO), the coupling between the antiferromagnetic (AFM) and FE order is robust at room temperature, scalable in voltage, stabilized by the FE order, and can be integrated into a fabrication process for a beyond-CMOS (complementary metal-oxide semiconductor) era. The presence of the AFM order and a canted magnetic moment in this system causes exchange interaction with a ferromagnet such as Co0.9Fe0.1 or La0.7Sr0.3MnO3. Previous research has shown that exchange coupling (uniaxial anisotropy) can be controlled with an electric field. However, voltage modulation of unidirectional anisotropy, which is preferred for logic and memory technologies, has not yet been demonstrated. Here, we present evidence for electric field control of exchange bias of laterally scaled spin valves that is exchange coupled to BFO at room temperature. We show that the exchange bias in this bilayer is robust, electrically controlled, and reversible. We anticipate that magnetoelectricity at these scaled dimensions provides a powerful pathway for computing beyond modern nanoelectronics by enabling a new class of nonvolatile, ultralow energy computing elements.
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Affiliation(s)
| | | | - Chia-Ching Lin
- Components Research, Intel Corp., Hillsboro, OR 97124, USA
| | - Bhagwati Prasad
- Department of Materials Science and Engineering and Department of Physics, University of California, Berkeley, CA 94720, USA
| | - Yen-Lin Huang
- Department of Materials Science and Engineering and Department of Physics, University of California, Berkeley, CA 94720, USA
| | - Anoop R. Damodaran
- Department of Materials Science and Engineering and Department of Physics, University of California, Berkeley, CA 94720, USA
| | - Zuhuang Chen
- Department of Materials Science and Engineering and Department of Physics, University of California, Berkeley, CA 94720, USA
| | - Ramamoorthy Ramesh
- Department of Materials Science and Engineering and Department of Physics, University of California, Berkeley, CA 94720, USA
| | - Ian A. Young
- Components Research, Intel Corp., Hillsboro, OR 97124, USA
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Agarwal RR, Lin CC, Chen KT, Singh VK. Predicting financial trouble using call data-On social capital, phone logs, and financial trouble. PLoS One 2018; 13:e0191863. [PMID: 29474411 PMCID: PMC5825009 DOI: 10.1371/journal.pone.0191863] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 01/13/2018] [Indexed: 12/02/2022] Open
Abstract
An ability to understand and predict financial wellbeing for individuals is of interest to economists, policy designers, financial institutions, and the individuals themselves. According to the Nilson reports, there were more than 3 billion credit cards in use in 2013, accounting for purchases exceeding US$ 2.2 trillion, and according to the Federal Reserve report, 39% of American households were carrying credit card debt from month to month. Prior literature has connected individual financial wellbeing with social capital. However, as yet, there is limited empirical evidence connecting social interaction behavior with financial outcomes. This work reports results from one of the largest known studies connecting financial outcomes and phone-based social behavior (180,000 individuals; 2 years' time frame; 82.2 million monthly bills, and 350 million call logs). Our methodology tackles highly imbalanced dataset, which is a pertinent problem with modelling credit risk behavior, and offers a novel hybrid method that yields improvements over, both, a traditional transaction data only approach, and an approach that uses only call data. The results pave way for better financial modelling of billions of unbanked and underbanked customers using non-traditional metrics like phone-based credit scoring.
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Affiliation(s)
| | - Chia-Ching Lin
- Institute of Information Science, Academia Sinica, Taipei, Taiwan
| | - Kuan-Ta Chen
- Institute of Information Science, Academia Sinica, Taipei, Taiwan
| | - Vivek Kumar Singh
- School of Communication and Information, Rutgers University, New Brunswick, New Jersey, United States of America
- Media Labs, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
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Suen KM, Lin CC, Seiler C, George R, Poncet-Montange G, Biter AB, Ahmed Z, Arold ST, Ladbury JE. Phosphorylation of threonine residues on Shc promotes ligand binding and mediates crosstalk between MAPK and Akt pathways in breast cancer cells. Int J Biochem Cell Biol 2018; 94:89-97. [PMID: 29208567 DOI: 10.1016/j.biocel.2017.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 08/08/2017] [Revised: 11/16/2017] [Accepted: 11/30/2017] [Indexed: 01/14/2023]
Abstract
Scaffold proteins play important roles in regulating signalling network fidelity, the absence of which is often the basis for diseases such as cancer. In the present work, we show that the prototypical scaffold protein Shc is phosphorylated by the extracellular signal-regulated kinase, Erk. In addition, Shc threonine phosphorylation is specifically up-regulated in two selected triple-negative breast cancer (TNBC) cell lines. To explore how Erk-mediated threonine phosphorylation on Shc might play a role in the dysregulation of signalling events, we investigated how Shc affects pathways downstream of EGF receptor. Using an in vitro model and biophysical analysis, we show that Shc threonine phosphorylation is responsible for elevated Akt and Erk signalling, potentially through the recruitment of the 14-3-3 ζ and Pin-1 proteins.
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Affiliation(s)
- K M Suen
- Department of Biochemistry and Molecular Biology, The University of Texas MD Anderson Cancer Center, Unit 1954, 1515 Holcombe Blvd, Houston, TX 77030, USA; Graduate School of Biological Sciences, The University of Texas MD Anderson Cancer Center, Unit 1954, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | - C C Lin
- School of Molecular and Cellular Biology, University of Leeds, LC Miall Building, Leeds, LS2 9JT, UK
| | - C Seiler
- School of Molecular and Cellular Biology, University of Leeds, LC Miall Building, Leeds, LS2 9JT, UK
| | - R George
- Structural Biology STP, The Francis Crick Institute, Lincolns Inn Fields Laboratory, 44 Lincolns Inn Fields, Holborn, London, WC2A 3LY, UK
| | - G Poncet-Montange
- Orthogon Therapeutics, 960 Turnpike Street, Unit 10, Canton, MA 02021, USA
| | - A B Biter
- Sabin Vaccine Institute and Texas Children's Hospital Center for Vaccine Development, 1102 Bates Avenue, Houston, TX 77030, USA
| | - Z Ahmed
- Department of Biochemistry and Molecular Biology, The University of Texas MD Anderson Cancer Center, Unit 1954, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | - S T Arold
- Division of Biological and Environmental Sciences and Engineering, CBRC, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - J E Ladbury
- School of Molecular and Cellular Biology, University of Leeds, LC Miall Building, Leeds, LS2 9JT, UK.
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Chan CW, Yu CW, Lin CC, Lee CH. Hepatic Portal Venous Gas in a Patient with Penetrating Injuries. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791302000608] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Hepatic portal venous gas (HPVG) refers to the branching area of low attenuation extending to within 2 cm of the liver capsule in computed tomography scan. The most common causes of HPVG are mesenteric ischaemia in adults and necrotising enterocolitis in infants. HPVG in trauma patients is mostly reported in cases of blunt abdominal trauma. We present a deceased patient who had chest and abdominal wall penetrating injuries with concomitant hypovolemic shock. A computed tomography scan revealed HPVG and pulmonary artery air emboli. The mechanism of the presentation of HPVG in this patient and the possible cause of death would be discussed. (Hong Kong j.emerg.med. 2013;20:382-384)
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Affiliation(s)
- CW Chan
- Chang Gung Memorial Hospital, Department of Emergency Medicine, Taoyuan, Taiwan
| | - CW Yu
- Chang Gung Memorial Hospital, Department of Emergency Medicine, Keelung, Taiwan
| | - CC Lin
- Chang Gung Memorial Hospital, Department of Emergency Medicine, Taoyuan, Taiwan
| | - CH Lee
- Chang Gung Memorial Hospital, Department of Emergency Medicine, Keelung, Taiwan
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Lin CC, Lu CH, Pan YH, Jiao L, Chen HY, Li L, He Y. [Effect and mechanism of silibinin on the inhibition of ALK positive NSCLC cells by sensitizing crizotinib]. Zhonghua Zhong Liu Za Zhi 2017; 39:650-656. [PMID: 28926892 DOI: 10.3760/cma.j.issn.0253-3766.2017.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the synergistic effect of silibinin combined with crizotinib on anaplastic lymphoma kinase positive (ALK+ ) non-small cell lung cancer (NSCLC) cells and its mechanism. Methods: H2228 and H3122 cells were treated with silibinin, crizotinib alone or in combination. Cell proliferation was measured by 3-(4, 5-Dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay and colony formation assay. Migration or invasion ability was tested by wound healing assay or transwell assay, respectively. Expressions of E-Cadherin and vimentin protein were examined by immunofluorescence staining. The protein expressions of ALK, p-ALK, E-Cadherin and Vimentin were detected by western blotting.The anti-cancer effect of silibinin combined with crizotinib in vivo was determined by subcutaneously injecting 2×10(6) H2228 cells into immunodeficient nude mice. Results: The result of MTT assay showed that the cell viability of H2228 or H3122 treated with 100 μmol/L silibinin was (88.38±4.10)% or (72.27±3.62)%, respectively, marginally decreased compared with that of the control. The 50% inhibitory concentration (IC(50)) of H2228 cells treated with crizotinib alone or combined with 100 μmol/L silibinin was (917.10±7.75) nmol/L or (238.73±7.67) nmol/L, respectively. The IC(50) of H3122 cells treated with crizotinib alone or combined with 100 μmol/L silibinin was (472.50±15.70) nmol/L or (206.10±12.01) nmol/L, respectively. The IC(50s) of H2228 and H3122 cells were significantly decreased by combined treatment of crizotinib and silibinin compared to crizotinib treatment alone (P<0.01). When compared with the control group, colony forming ratios of H2228 cells were (83.34±2.72)% in 100 μmol/L silibinin treatment group, (69.42±3.06)% in 400 nmol/L crizotinib treatment group and (27.32±1.42)% in combined treatment group. When compared with the control group, colony forming ratios of H3122 cells were (84.45±5.67)% in 100 μmol/L silibinin treatment group, (45.02±5.83)% in 400 nmol/L crizotinib treatment group and (17.43±3.83)% in combined treatment group. Silibinin combined with crizotinib treatment significantly inhibited the colony formation ability of H2228 and H3122 cells (P<0.01). Migration and invasion results showed that combined treatment of crizotinib and silibinin markedly inhibited the migration and invasion ability of H2228 cells (P<0.01). Western blot results indicated that treated with silibinin alone or in combination of crozitinib for 48 hours, the protein level of E-cadherin in H2228 cells was upregulated, while the expressions of p-ALK and vimentin were downregulated, without obvious alteration of ALK protein expression. In the xenograft model, the mean tumor weight was (9.40±2.58)g in crizotinib treatment group and (4.58±1.07)g in the combined treatment group. The inhibitory effect of tumor growth in vivo of combined treatment was significantly superior to that of crizotinib treatment alone (P<0.05). Conclusion: Silibinin enhances the inhibitory effect of crizotinib on ALK positive NSCLC cells, which may be associated with suppression of ALK activity and mesenchymal-epithelial transition.
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Affiliation(s)
- C C Lin
- Department of Respiratory, Daping Hospital, the Third Military Medical University, Chongqing 400042, China
| | - C H Lu
- Department of Respiratory, Daping Hospital, the Third Military Medical University, Chongqing 400042, China
| | - Y H Pan
- Department of Respiratory, Daping Hospital, the Third Military Medical University, Chongqing 400042, China
| | - L Jiao
- Department of Respiratory, Daping Hospital, the Third Military Medical University, Chongqing 400042, China
| | - H Y Chen
- Department of Respiratory, Daping Hospital, the Third Military Medical University, Chongqing 400042, China
| | - L Li
- Department of Respiratory, Daping Hospital, the Third Military Medical University, Chongqing 400042, China
| | - Y He
- Department of Respiratory, Daping Hospital, the Third Military Medical University, Chongqing 400042, China
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Hung YC, Lin CC, Chen HJ, Chang MP, Huang KC, Chen YH, Chen CC. Severe hypoglycemia and hip fracture in patients with type 2 diabetes: a nationwide population-based cohort study. Osteoporos Int 2017; 28:2053-2060. [PMID: 28374044 DOI: 10.1007/s00198-017-4021-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [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] [Received: 08/26/2016] [Accepted: 03/27/2017] [Indexed: 02/01/2023]
Abstract
UNLABELLED Hypoglycemia is a major concern in glycemic control. Using the Taiwan National Health Insurance Research Database, we found that the risk of hip fracture was associated with emergency or hospitalization visits of severe hypoglycemia in patients with type 2 diabetes; greater visits were associated with higher incidence of hip fracture. INTRODUCTION The objective of the study was to assess the risk of hip fracture among patients with type 2 diabetes mellitus (T2DM) and severe hypoglycemia. METHODS Using the National Health Insurance Research database in Taiwan, we identified 2588 patients with T2DM who had developed severe hypoglycemia from 2001 to 2009. A comparison cohort who had never developed severe hypoglycemia was frequency matched at a ratio of approximately 1:2. Multivariate Cox proportional hazard regression analysis was used to evaluate the risk of hip fracture. RESULTS During a median follow-up period of 3.9 years, there were 219 hip fracture events in 5173 comparison cohorts and 148 hip fracture events in 2588 hypoglycemia cohorts. The incidence of hip fracture was higher in patients with severe hypoglycemia than without severe hypoglycemia (17.19 vs. 8.83 per 1000 person-years; adjusted HR 1.71, 95% CI = 1.35-2.16). Approximately half of the individuals developed hip fracture within 2 years from the first occurrence of severe hypoglycemia. There was a significant associated trend towards increased hip fracture risk with increasing average visit of severe hypoglycemia per year (p for trend <0.001). Medication analysis showed that patients taking sulfonylurea alone, insulin alone, and insulin secretagogues combined with insulin had a higher associated risk to develop hip fracture. CONCLUSIONS Severe hypoglycemia was associated with a higher risk to develop hip fracture. The more the visits of severe hypoglycemia per year indicated the higher associated risk in patients with T2DM. Fall is likely an important reason for severe hypoglycemia in relation to increased risk of hip fracture.
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Affiliation(s)
- Y C Hung
- Division of Endocrinology and Metabolism, Department of Medicine, China Medical University Hospital, 2, Yuh-Der Road, Taichung, 40447, Taiwan
- Department of Medicine, China Medical University, Taichung, 40402, Taiwan
| | - C C Lin
- Management Office for Health Data, China Medical University Hospital, Taichung, 40447, Taiwan
- Veterans General Hospital, Taichung, Taiwan
| | - H J Chen
- Management Office for Health Data, China Medical University Hospital, Taichung, 40447, Taiwan
| | - M P Chang
- Department of Nursing, School of Health, National Taichung University of Science and Technology, Taichung, 40343, Taiwan
| | - K C Huang
- Department of Integration of Traditional Chinese and Western Medicine, China Medical University Hospital, Taichung, 40447, Taiwan
- School of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan
| | - Y H Chen
- Division of Endocrinology and Metabolism, Department of Medicine, China Medical University Hospital, 2, Yuh-Der Road, Taichung, 40447, Taiwan
- Department of Medicine, China Medical University, Taichung, 40402, Taiwan
| | - C C Chen
- Division of Endocrinology and Metabolism, Department of Medicine, China Medical University Hospital, 2, Yuh-Der Road, Taichung, 40447, Taiwan.
- School of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan.
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Lin CC, Lai SR, Shao YH, Chen CL, Lee KZ. The Therapeutic Effectiveness of Delayed Fetal Spinal Cord Tissue Transplantation on Respiratory Function Following Mid-Cervical Spinal Cord Injury. Neurotherapeutics 2017; 14:792-809. [PMID: 28097486 PMCID: PMC5509620 DOI: 10.1007/s13311-016-0509-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [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] [Indexed: 12/22/2022] Open
Abstract
Respiratory impairment due to damage of the spinal respiratory motoneurons and interruption of the descending drives from brainstem premotor neurons to spinal respiratory motoneurons is the leading cause of morbidity and mortality following cervical spinal cord injury. The present study was designed to evaluate the therapeutic effectiveness of delayed transplantation of fetal spinal cord (FSC) tissue on respiratory function in rats with mid-cervical spinal cord injury. Embryonic day-14 rat FSC tissue was transplanted into a C4 spinal cord hemilesion cavity in adult male rats at 1 week postinjury. The histological results showed that FSC-derived grafts can survive, fill the lesion cavity, and differentiate into neurons and astrocytes at 8 weeks post-transplantation. Some FSC-derived graft neurons exhibited specific neurochemical markers of neurotransmitter (e.g., serotonin, noradrenalin, or acetylcholine). Moreover, a robust expression of glutamatergic and γ-aminobutyric acid-ergic fibers was observed within FSC-derived grafts. Retrograde tracing results indicated that there was a connection between FSC-derived grafts and host phrenic nucleus. Neurophysiological recording of the phrenic nerve demonstrated that phrenic burst amplitude ipsilateral to the lesion was significantly greater in injured animals that received FSC transplantation than in those that received buffer transplantation under high respiratory drives. These results suggest that delayed FSC transplantation may have the potential to repair the injured spinal cord and promote respiratory functional recovery after mid-cervical spinal cord injury.
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Affiliation(s)
- Chia-Ching Lin
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Sih-Rong Lai
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Yu-Han Shao
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Chun-Lin Chen
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University and Academia Sinica, Kaohsiung, Taiwan
| | - Kun-Ze Lee
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan.
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University and Academia Sinica, Kaohsiung, Taiwan.
- Center for Neuroscience, National Sun Yat-sen University, Kaohsiung, Taiwan.
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung, Taiwan.
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Chao PY, Lin CC, Wu MS. Employing a visualized searching system to assist elementary students’ tactics and success of storybook searching. OIR 2017. [DOI: 10.1108/oir-01-2016-0029] [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] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
The purpose of this paper is twofold: first, to develop a visualized search system utilizing graphical images to represent the story elements and concepts to help elementary students describe and seek their desired storybooks; and second, to explore the effect of the proposed visualized search system on elementary students’ tactics, success, and motivation for seeking storybooks.
Design/methodology/approach
A quasi-experimental approach was conducted with a sample of 61 elementary students in this study. The students’ tactics, motivation and the success of their storybook searching were addressed as dependent variables for further comparisons of the visualized searching system and a conventional keyword searching system.
Findings
The results revealed that the students in the experimental group exhibited more frequent tactics and greater motivation for storybook searching than those in the control group. Further χ2 analysis indicated a significant relationship between the searching interface and the success of the students’ storybook searching.
Originality/value
This paper proposes a new visual search approach which allows young children to search for storybooks by describing an intended storybook in terms of its characters, objects, or the background colors of the cover page. The findings provide some evidence of the effectiveness of the visualized searching interface in terms of promoting young children’s learning through storybook searching and reading activities.
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Lee HC, Lin CC, Yao YC, Sarma M, Su HC, Yang ZP, Lee YJ, Wong KT. P-114: Non-Doped White Light-Emitting Electrochemical Cells Employing Plasmonic Notch Filters. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/sdtp.11984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hsiao-Chin Lee
- Institute of Lighting and Energy Photonics; National Chiao Tung University; Tainan 71150 Taiwan
| | - Chia-Ching Lin
- Institute of Photonic System; National Chiao-Tung University; Tainan 71150 Taiwan
| | - Yung-Chi Yao
- Institute of Electro-Optical Science and Technology; National Taiwan Normal University; Taipei 11677 Taiwan
| | - Monima Sarma
- Department of Chemistry; National Taiwan University; Taipei 10617 Taiwan
| | - Hai-Ching Su
- Institute of Lighting and Energy Photonics; National Chiao Tung University; Tainan 71150 Taiwan
| | - Zu-Po Yang
- Institute of Photonic System; National Chiao-Tung University; Tainan 71150 Taiwan
| | - Ya-Ju Lee
- Institute of Electro-Optical Science and Technology; National Taiwan Normal University; Taipei 11677 Taiwan
| | - Ken-Tsung Wong
- Department of Chemistry; National Taiwan University; Taipei 10617 Taiwan
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Fischer JC, Bscheider M, Eisenkolb G, Lin CC, Wintges A, Otten V, Lindemans CA, Heidegger S, Rudelius M, Monette S, Porosnicu Rodriguez KA, Calafiore M, Liebermann S, Liu C, Lienenklaus S, Weiss S, Kalinke U, Ruland J, Peschel C, Shono Y, Docampo M, Velardi E, Jenq RR, Hanash AM, Dudakov JA, Haas T, van den Brink MRM, Poeck H. RIG-I/MAVS and STING signaling promote gut integrity during irradiation- and immune-mediated tissue injury. Sci Transl Med 2017; 9:eaag2513. [PMID: 28424327 PMCID: PMC5604790 DOI: 10.1126/scitranslmed.aag2513] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 05/30/2016] [Accepted: 01/18/2017] [Indexed: 12/25/2022]
Abstract
The molecular pathways that regulate the tissue repair function of type I interferon (IFN-I) during acute tissue damage are poorly understood. We describe a protective role for IFN-I and the RIG-I/MAVS signaling pathway during acute tissue damage in mice. Mice lacking mitochondrial antiviral-signaling protein (MAVS) were more sensitive to total body irradiation- and chemotherapy-induced intestinal barrier damage. These mice developed worse graft-versus-host disease (GVHD) in a preclinical model of allogeneic hematopoietic stem cell transplantation (allo-HSCT) than did wild-type mice. This phenotype was not associated with changes in the intestinal microbiota but was associated with reduced gut epithelial integrity. Conversely, targeted activation of the RIG-I pathway during tissue injury promoted gut barrier integrity and reduced GVHD. Recombinant IFN-I or IFN-I expression induced by RIG-I promoted growth of intestinal organoids in vitro and production of the antimicrobial peptide regenerating islet-derived protein 3 γ (RegIIIγ). Our findings were not confined to RIG-I/MAVS signaling because targeted engagement of the STING (stimulator of interferon genes) pathway also protected gut barrier function and reduced GVHD. Consistent with this, STING-deficient mice suffered worse GVHD after allo-HSCT than did wild-type mice. Overall, our data suggest that activation of either RIG-I/MAVS or STING pathways during acute intestinal tissue injury in mice resulted in IFN-I signaling that maintained gut epithelial barrier integrity and reduced GVHD severity. Targeting these pathways may help to prevent acute intestinal injury and GVHD during allogeneic transplantation.
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Affiliation(s)
- Julius C Fischer
- III. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Michael Bscheider
- III. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Gabriel Eisenkolb
- III. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Department of Immunology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Chia-Ching Lin
- III. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Alexander Wintges
- III. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Vera Otten
- III. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Caroline A Lindemans
- Pediatric Blood and Bone Marrow Transplant Program, University Medical Center Utrecht, Utrecht, Netherlands
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Simon Heidegger
- III. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Martina Rudelius
- Institute of Pathology, University of Wuerzburg and Comprehensive Cancer Center Mainfranken, Wuerzburg, Germany
| | - Sébastien Monette
- Tri-Institutional Laboratory of Comparative Pathology, Memorial Sloan Kettering Cancer Center, Rockefeller University, and Weill Cornell Medical College, New York, NY 10065, USA
| | | | - Marco Calafiore
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Sophie Liebermann
- Department of Immunology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Chen Liu
- Department of Pathology and Laboratory Medicine, New Jersey Medical School and Robert Wood Johnson Medical School, Rutgers University, Newark, NJ 08903, USA
| | - Stefan Lienenklaus
- Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research and the Hannover Medical School, Hannover, Germany
| | - Siegfried Weiss
- Molecular Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Ulrich Kalinke
- Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research and the Hannover Medical School, Hannover, Germany
| | - Jürgen Ruland
- Institut für Klinische Chemie und Pathobiochemie, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
- German Center for Infection Research (DZIF), partner site Munich, Munich, Germany
| | - Christian Peschel
- III. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Yusuke Shono
- Department of Immunology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Melissa Docampo
- Department of Immunology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Enrico Velardi
- Department of Immunology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Robert R Jenq
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Alan M Hanash
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Jarrod A Dudakov
- Department of Immunology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Tobias Haas
- III. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Marcel R M van den Brink
- Department of Immunology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Hendrik Poeck
- III. Medizinische Klinik, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.
- Department of Immunology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
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Emmakah AM, Arman HE, Bragg JC, Greene T, Alvarez MB, Childress PJ, Goebel WS, Kacena MA, Lin CC, Chu TM. A fast-degrading thiol–acrylate based hydrogel for cranial regeneration. Biomed Mater 2017; 12:025011. [DOI: 10.1088/1748-605x/aa5f3e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Huang PH, Shih BF, Tsai YF, Chung PCH, Liu FC, Yu HP, Lee WC, Chang CJ, Lin CC. Accuracy and Trending of Continuous Noninvasive Hemoglobin Monitoring in Patients Undergoing Liver Transplantation. Transplant Proc 2017; 48:1067-70. [PMID: 27320558 DOI: 10.1016/j.transproceed.2015.12.121] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 12/30/2015] [Indexed: 01/05/2023]
Abstract
BACKGROUND Shift in large fluid volumes and massive blood loss during liver transplantation frequently leads to rapid changes in hemoglobin (Hb) concentration; thus, to ensure adequate tissue oxygenation, accurate and rapid determination of Hb concentration is essential in transplant recipients. The Radical-7 Pulse CO-Oximeter provides a noninvasive and continuous way to monitor Hb concentration (SpHb) in real time and is an ideal candidate for use during liver transplantation. In this study, we assessed the relationship between SpHb and total Hb (tHb) obtained from arterial blood samples during surgery. METHODS Forty patients undergoing liver transplantation were enrolled in this study. tHb and time-matched SpHb were measured at 5 different phases throughout surgery. Paired SpHb and tHb levels were assessed using linear regression, Bland-Altman analysis, and the Critchley polar plot method. RESULTS A total of 161 paired measurements with sufficient signal quality were analyzed. The correlation between SpHb and tHb was 0.59 (P < .001). Bland-Altman analysis revealed that a bias between SpHb and tHb was 2.28 g/dL, and limits of agreement (LoA) were from -0.78 to 5.34 g/dL. Trending analysis showed that 87% of data were located within the acceptable trending area, indicating that the trending ability was not satisfied. CONCLUSIONS The Radical-7 Pulse CO-Oximeter was not sufficient to monitor Hb levels and trends during liver transplantation surgery in our cohort. In particular, in critical patients and in those with low Hb levels, invasive Hb measurement should be used for assessment.
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Affiliation(s)
- P H Huang
- Department of Anesthesiology, Chang Gung Memorial Hospital, Guishan, Taoyuan, Taiwan
| | - B F Shih
- Department of Anesthesiology, Chang Gung Memorial Hospital, Guishan, Taoyuan, Taiwan
| | - Y-F Tsai
- Department of Anesthesiology, Chang Gung Memorial Hospital, Guishan, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Guishan, Taoyuan, Taiwan
| | - P C H Chung
- Department of Anesthesiology, Chang Gung Memorial Hospital, Guishan, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Guishan, Taoyuan, Taiwan
| | - F C Liu
- Department of Anesthesiology, Chang Gung Memorial Hospital, Guishan, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Guishan, Taoyuan, Taiwan
| | - H P Yu
- Department of Anesthesiology, Chang Gung Memorial Hospital, Guishan, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Guishan, Taoyuan, Taiwan
| | - W C Lee
- College of Medicine, Chang Gung University, Guishan, Taoyuan, Taiwan; Department of General Surgery, Chang Gung Memorial Hospital, Guishan, Taoyuan, Taiwan
| | - C J Chang
- Clinical Informatics and Medical Statistics Research Center, Chang Gung University, Guishan, Taoyuan, Taiwan; Biostatistical Center for Clinical Research, Chang Gung Memorial Hospital, Guishan, Taoyuan, Taiwan
| | - C C Lin
- Department of Anesthesiology, Chang Gung Memorial Hospital, Guishan, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Guishan, Taoyuan, Taiwan.
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Yao YC, Yang ZP, Hwang JM, Chuang YL, Lin CC, Haung JY, Chou CY, Sheu JK, Tsai MT, Lee YJ. Enhancing UV-emissions through optical and electronic dual-function tuning of Ag nanoparticles hybridized with n-ZnO nanorods/p-GaN heterojunction light-emitting diodes. Nanoscale 2016; 8:4463-4474. [PMID: 26852753 DOI: 10.1039/c5nr08561f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
ZnO nanorods (NRs) and Ag nanoparticles (NPs) are known to enhance the luminescence of light-emitting diodes (LEDs) through the high directionality of waveguide mode transmission and efficient energy transfer of localized surface plasmon (LSP) resonances, respectively. In this work, we have demonstrated Ag NP-incorporated n-ZnO NRs/p-GaN heterojunctions by facilely hydrothermally growing ZnO NRs on Ag NP-covered GaN, in which the Ag NPs were introduced and randomly distributed on the p-GaN surface to excite the LSP resonances. Compared with the reference LED, the light-output power of the near-band-edge (NBE) emission (ZnO, λ = 380 nm) of our hybridized structure is increased almost 1.5-2 times and can be further modified in a controlled manner by varying the surface morphology of the surrounding medium of the Ag NPs. The improved light-output power is mainly attributed to the LSP resonance between the NBE emission of ZnO NRs and LSPs in Ag NPs. We also observed different behaviors in the electroluminescence (EL) spectra as the injection current increases for the treatment and reference LEDs. This observation might be attributed to the modification of the energy band diagram for introducing Ag NPs at the interface between n-ZnO NRs and p-GaN. Our results pave the way for developing advanced nanostructured LED devices with high luminescence efficiency in the UV emission regime.
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Affiliation(s)
- Yung-Chi Yao
- Institute of Electro-Optical Science and Technology, National Taiwan Normal University, 88, Sec. 4, Ting-Chou Road, Taipei 116, Taiwan.
| | - Zu-Po Yang
- Institute of Photonic System, National Chiao Tung University, 301, Gaofa 3rd Road, Tainan 711, Taiwan.
| | - Jung-Min Hwang
- Institute of Electro-Optical Science and Technology, National Taiwan Normal University, 88, Sec. 4, Ting-Chou Road, Taipei 116, Taiwan. and Advanced Lighting Technology Department, Green Energy and Environment Research Laboratories, Industrial Technology Research Institute (ITRI), Hsinchu 310, Taiwan
| | - Yi-Lun Chuang
- Institute of Electro-Optical Science and Technology, National Taiwan Normal University, 88, Sec. 4, Ting-Chou Road, Taipei 116, Taiwan.
| | - Chia-Ching Lin
- Institute of Photonic System, National Chiao Tung University, 301, Gaofa 3rd Road, Tainan 711, Taiwan.
| | - Jing-Yu Haung
- Institute of Electro-Optical Science and Technology, National Taiwan Normal University, 88, Sec. 4, Ting-Chou Road, Taipei 116, Taiwan.
| | - Chun-Yang Chou
- Institute of Electro-Optical Science and Technology, National Taiwan Normal University, 88, Sec. 4, Ting-Chou Road, Taipei 116, Taiwan.
| | - Jinn-Kong Sheu
- Department of Photonics, National Cheng Kung University, 1, University Rd, Tainan, 701, Taiwan
| | - Meng-Tsan Tsai
- Department of Electrical Engineering, Chang Gung University, 259, Wen-Hwa 1st Rd, Kwei-Shan Dist., Taoyuan, 33302, Taiwan
| | - Ya-Ju Lee
- Institute of Electro-Optical Science and Technology, National Taiwan Normal University, 88, Sec. 4, Ting-Chou Road, Taipei 116, Taiwan.
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van Essen TH, van Zijl L, Possemiers T, Mulder AA, Zwart SJ, Chou CH, Lin CC, Lai HJ, Luyten GPM, Tassignon MJ, Zakaria N, El Ghalbzouri A, Jager MJ. Biocompatibility of a fish scale-derived artificial cornea: Cytotoxicity, cellular adhesion and phenotype, and in vivo immunogenicity. Biomaterials 2015; 81:36-45. [PMID: 26717247 DOI: 10.1016/j.biomaterials.2015.11.015] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 11/06/2015] [Indexed: 01/30/2023]
Abstract
PURPOSE To determine whether a fish scale-derived collagen matrix (FSCM) meets the basic criteria to serve as an artificial cornea, as determined with in vitro and in vivo tests. METHODS Primary corneal epithelial and stromal cells were obtained from human donor corneas and used to examine the (in)direct cytotoxicity effects of the scaffold. Cytotoxicity was assessed by an MTT assay, while cellular proliferation, corneal cell phenotype and adhesion markers were assessed using an EdU-assay and immunofluorescence. For in vivo-testing, FSCMs were implanted subcutaneously in rats. Ologen(®) Collagen Matrices were used as controls. A second implant was implanted as an immunological challenge. The FSCM was implanted in a corneal pocket of seven New Zealand White rabbits, and compared to sham surgery. RESULTS The FSCM was used as a scaffold to grow corneal epithelial and stromal cells, and displayed no cytotoxicity to these cells. Corneal epithelial cells displayed their normal phenotypical markers (CK3/12 and E-cadherin), as well as cell-matrix adhesion molecules: integrin-α6 and β4, laminin 332, and hemi-desmosomes. Corneal stromal cells similarly expressed adhesion molecules (integrin-α6 and β1). A subcutaneous implant of the FSCM in rats did not induce inflammation or sensitization; the response was comparable to the response against the Ologen(®) Collagen Matrix. Implantation of the FSCM in a corneal stromal pocket in rabbits led to a transparent cornea, healthy epithelium, and, on histology, hardly any infiltrating immune cells. CONCLUSION The FSCM allows excellent cell growth, is not immunogenic and is well-tolerated in the cornea, and thus meets the basic criteria to serve as a scaffold to reconstitute the cornea.
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Affiliation(s)
- T H van Essen
- Department of Ophthalmology, J3-S, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands.
| | - L van Zijl
- Department of Research, Aeon Astron Europe B.V., J.H. Oortweg 19, 2333 CH, Leiden, The Netherlands.
| | - T Possemiers
- Department of Ophthalmology, Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium.
| | - A A Mulder
- Department of Molecular Cell-biology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands.
| | - S J Zwart
- Department of Research, Aeon Astron Europe B.V., J.H. Oortweg 19, 2333 CH, Leiden, The Netherlands.
| | - C-H Chou
- Department of Research, Body Organ Biomedical Corporation, 5F, No. 153, Section 3, Xinyi Road, Da'an District, Taipei City 106, Taiwan, ROC.
| | - C C Lin
- Department of Research, Body Organ Biomedical Corporation, 5F, No. 153, Section 3, Xinyi Road, Da'an District, Taipei City 106, Taiwan, ROC.
| | - H J Lai
- Department of Research, Aeon Astron Europe B.V., J.H. Oortweg 19, 2333 CH, Leiden, The Netherlands.
| | - G P M Luyten
- Department of Ophthalmology, J3-S, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands.
| | - M J Tassignon
- Department of Ophthalmology, Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium.
| | - N Zakaria
- Department of Ophthalmology, Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Belgium; University of Antwerp, Prinsstraat 13, 2000 Antwerpen, Belgium.
| | - A El Ghalbzouri
- Department of Molecular Cell-biology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands.
| | - M J Jager
- Department of Ophthalmology, J3-S, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands.
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Abstract
Purpose
– The purpose of this paper is to explore how young children interact with a visualized search interface to search for storybooks by assembling the provided visual searching items and to explore the difference in visual search behaviours and strategies exhibited by pre-schoolers and second-graders.
Design/methodology/approach
– The visualized search interface was used to help young children search for storybooks by dragging-and-dropping story characters, scene objects and colour icons to perform search queries. Twenty pre-schoolers and 20 second-graders were asked to finish a search task through the visualized search interface. Their activities and successes in performing visual searches were logged for later analysis. Furthermore, in-depth interviews were also conducted to research their cognitive strategies exhibited while formulating visual search queries.
Findings
– Young children with different grades adopted different cognitive strategies to perform visual searching. In contrast to the pre-schoolers who performed visual searching by personal preference, the second-graders could exercise visual searching accompanied with relatively high-order thinking. Young children may also place different foci on the storybook structure to deal with conditional storybook queries. The pre-schoolers tended to address the characters in the story, whereas the second-graders paid much attention to the aspects of scene and colour.
Originality/value
– This paper describes a new visual search approach allowing young children to search for storybooks by describing an intended storybook in terms of its characters, scenes or the background colours, which provides valuable indicators to inform researchers of how pre-schoolers and second-graders formulate concepts to search for storybooks.
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Klatt BN, Carender WJ, Lin CC, Alsubaie SF, Kinnaird CR, Sienko KH, Whitney SL. A Conceptual Framework for the Progression of Balance Exercises in Persons with Balance and Vestibular Disorders. Phys Med Rehabil Int 2015; 2:1044. [PMID: 27489886 PMCID: PMC4968039] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
There is little information in peer-reviewed literature to specifically guide the choice of exercise for persons with balance and vestibular disorders. The purpose of this study is to provide a rationale for the establishment of a progression framework and propose a logical sequence in progressing balance exercises for persons with vestibular disorders. Our preliminary conceptual framework was developed by a multidisciplinary team of physical therapists and engineers with extensive experience with people with vestibular disorders. Balance exercises are grouped into six different categories: static standing, compliant surface, weight shifting, modified center of gravity, gait, and vestibulo-ocular reflex (VOR). Through a systematized literature review, interviews and focus group discussions with physical therapists and postural control experts, and pilot studies involving repeated trials of each exercise, exercise progressions for each category were developed and ranked in order of degree of difficulty. Clinical expertise and experience guided decision making for the exercise progressions. Hundreds of exercise combinations were discussed and research is ongoing to validate the hypothesized rankings. The six exercise categories can be incorporated into a balance training program and the framework for exercise progression can be used to guide less experienced practitioners in the development of a balance program. It may also assist clinicians and researchers to design, develop, and progress interventions within a treatment plan of care, or within clinical trials. A structured exercise framework has the potential to maximize postural control, decrease symptoms of dizziness/visual vertigo, and provide "rules" for exercise progression for persons with vestibular disorders. The conceptual framework may also be applicable to persons with other balance-related issues.
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Affiliation(s)
- BN Klatt
- Department of Physical Therapy, University of Pittsburgh, USA
| | - WJ Carender
- Department of Otolaryngology, University of Michigan Health System, USA
| | - CC Lin
- Department of Physical Therapy, University of Pittsburgh, USA
| | - SF Alsubaie
- Department of Physical Therapy, University of Pittsburgh, USA
| | - CR Kinnaird
- Department of Mechanical Engineering, University of Michigan, USA
| | - KH Sienko
- Department of Mechanical Engineering, University of Michigan, USA
- Department of Biomedical Engineering, University of Michigan, USA
| | - SL Whitney
- Department of Physical Therapy, University of Pittsburgh, USA
- Rehabilitation Research Chair, Department of Rehabilitation Sciences, King Saud University, Saudi Arabia
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Abstract
AIM To evaluate whether aspirin can reduce the risk of colorectal cancer in people with diabetes. METHODS We studied ≥ 30-year-old people with diabetes, included in the Longitudinal Health Insurance Database 2005 in Taiwan, who were treated with hypoglycaemic drugs. We used a time-varying Cox regression model to adjust for immortal time bias and to estimate the adjusted hazard ratio and 95% CI for the association between aspirin use and colorectal cancer occurrence. RESULTS We studied a total of 60 828 people with diabetes (31 176 men and 29 652 women). Their mean (sd) age was 58.72 (13.33) years. A total of 26 494 people were taking aspirin. Aspirin use 3-5 times/week (moderate frequency) for > 5 years (long duration) was found to reduce the risk of colorectal cancer by 46% (hazard ratio 0.54, 95% CI 0.34-0.86). Aspirin use > 5 times/week (high frequency) for 4-5 years (moderate duration) and > 5 years reduced the risk of colorectal cancer by 56 and 68%, respectively (hazard ratio 0.44, 95% CI 0.24-0.80; hazard ratio 0.32, 95% CI 0.20-0.50). Low frequency (≤ 2 times/week) and/or short duration (≤ 3 years) of aspirin use did not reduce the risk of colorectal cancer. CONCLUSIONS Aspirin use with high frequency and long duration reduced the risk of colorectal cancer in people with diabetes in a frequency- and duration-dependent manner, whereas low frequency and/or short duration of aspirin use did not. The dosage, frequency and duration of aspirin use that are sufficient to prevent the incidence of colorectal cancer in people with diabetes require further study.
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Affiliation(s)
- C C Lin
- Department of Family Medicine, Wan Fang Hospital, Taipei Medical University, Taipei; Graduate Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei
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Zheng ZY, Jiang Y, Zhan XB, Ma LW, Wu JR, Zhang LM, Lin CC. An increase of curdlan productivity by integration of carbon/nitrogen sources control and sequencing dual fed-batch fermentors operation. ACTA ACUST UNITED AC 2014; 50:44-51. [PMID: 25272751 DOI: 10.7868/s0555109914010152] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Curdlan is produced by Agrobacterium sp. ATCC 31749 under nitrogen-limited conditions not associated with cell growth. A novel curdlan production process was developed based on the different nutrient requirements for microbial cell growth and its efficiency was increased by integrating carbon/nitrogen sources control and sequencing dual fed-batch fermentors operation. By feeding ammonium solution to supply abundant nitrogen source and controlling pH in Fermentor I, cell growth was accelerated. High cell density of 29 g/L was attained. The culture broth in Fermentor I was then inoculated into sequencing Fermentor II which alleviated the high requirement for dissolved oxygen and accumulation of inhibitory metabolic by-products during curdlan production. Fermentor I promoted cell growth. Curdlan production started instantaneously in Fermentor II. By feeding nutrient solution with high carbon/nitrogen ratio and NaOH solution for pH adjustment, a feasible and optimal curdlan production process was formulated. The productivity, conversion efficiency and curdlan yield were achieved of 0.98 g/(L h), 57% (w) and 67 g/L, respectively. Such novel process can be scaled up for significant cost reduction at the industrial level.
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Abstract
Purpose
– Many studies have integrated the mechanism of Creative Commons (CC) or similar mechanisms into web 2.0 platforms for supporting learning. The CC mechanism may create new types of knowledge sharing environments. The purpose of this paper is to explore students’ trust, knowledge sharing self-efficacy, and outcome expectations in the context of a knowledge sharing platform using the CC mechanism.
Design/methodology/approach
– The participants were 86 sixth-grade Taiwanese students. Within the context of online drawing and storytelling activities, a quantitatively self-reported instrument was adopted to assess the sharing experience with the CC mechanism.
Findings
– The results found complex interrelationships among trust, sharing self-efficacy, and outcome expectations identified in the literature. The results further reveal that students who showed high community-related outcome expectations would adopt the non-CC approach (read-only, i.e. the shared works can not be used and modified) as they possessed lower identification-based trust. In contrast, those who adopted CC approach (i.e. the shared works are able to be used and modified) placed higher level of economy-based trust and showed a lower level of community-related outcome expectations. The results reflect that students who have low performance expectancy and sharing self-efficacy are more willing to share their work using the CC approach.
Originality/value
– The results of this paper show that in such a mechanism there exists close interplay between trust, sharing self-efficacy, and outcome expectations. It is therefore, suggested that researchers and educators should note the influence of the sharing mechanism on the sharing activity when knowledge sharing is involved in pedagogical design. The implications derived from the findings for educational practice were also discussed.
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Jeng KS, Chu SH, Huang CC, Lin CK, Lin CC, Chen KH. Loss of speech after living-related donor liver transplantation: detection of the lesion by diffusion tensor image. Transplant Proc 2014; 46:880-2. [PMID: 24767371 DOI: 10.1016/j.transproceed.2013.11.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Accepted: 11/22/2013] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Loss of speech after living-related liver transplantation is uncommon. Either immunosuppressive agents, related sequelae, or a neurological event may cause it. CASE REPORT A 46-year-old man developed dysarthria and dysphagia on the 10th day after living-related donor liver transplantation for alcoholic cirrhosis with Child-Pugh class C. Brain magnetic resonance images and electroencephalograms could not detect any lesion, but the diffusion tensor image showed a subacute lacunar infarction at right midbrain. The patient's speech improved 1 month after rehabilitation. CONCLUSIONS Some unexpected neurological events, such as loss of speech, may occur after liver transplantation. The differential diagnosis becomes very important before active treatment. Magnetic resonance imaging supplemented with diffusion tensor imaging is an effective imaging study in establishing the diagnosis.
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Affiliation(s)
- K S Jeng
- Department of Surgery, Far Eastern Memorial Hospital, Taipei, Taiwan.
| | - S H Chu
- Department of Surgery, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - C C Huang
- Department of Radiology, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - C K Lin
- Division of Gastroenterology, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - C C Lin
- Division of Gastroenterology, Far Eastern Memorial Hospital, Taipei, Taiwan
| | - K H Chen
- Department of Surgery, Far Eastern Memorial Hospital, Taipei, Taiwan
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Lin CC, Gao Y, Penumatcha AV, Diep VQ, Appenzeller J, Chen Z. Improvement of spin transfer torque in asymmetric graphene devices. ACS Nano 2014; 8:3807-3812. [PMID: 24635654 DOI: 10.1021/nn500533b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A graphene lateral spin valve structure with asymmetric contacts is presented for the first time, with enhancement of spin angular momentum absorption in its receiving magnet. The asymmetric device with tunneling barrier only at the injector magnet shows a comparable spin valve signal but lower electrical noises compared to the device with two tunneling barriers. We also report experimental measurements of spin transfer torque. Assisted by an external magnetic field of 2.5 mT, spin diffusion current-induced magnetization reversal occurs at a nonlocal charge current density of 33 mA/μm(2), smaller than that needed in devices with two tunneling barriers.
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Affiliation(s)
- Chia-Ching Lin
- School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University , West Lafayette, Indiana, United States
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49
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Affiliation(s)
- Y C Chen
- Division of Gastroenterology, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
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Chen YT, Yang WC, Chen TW, Lin CC. Trichosporon mucoides peritonitis in a continuous ambulatory peritoneal dialysis patient. Perit Dial Int 2014; 33:341-2. [PMID: 23660618 DOI: 10.3747/pdi.2012.00146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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