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Huangfu Y, Qin B, Lu P, Zhang Q, Li W, Liang J, Liang Z, Liu J, Liu M, Lin X, Li X, Saeed MZ, Zhang Z, Li J, Li B, Duan X. Low Temperature Synthesis of 2D p-Type α-In 2 Te 3 with Fast and Broadband Photodetection. Small 2024:e2309620. [PMID: 38294996 DOI: 10.1002/smll.202309620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/10/2024] [Indexed: 02/02/2024]
Abstract
2DA 2 III B 3 VI ${\mathrm{A}}_2^{{\mathrm{III}}}{\mathrm{B}}_3^{{\mathrm{VI}}}$ compounds (A = Al, Ga, In, and B = S, Se, and Te) with intrinsic structural defects offer significant opportunities for high-performance and functional devices. However, obtaining 2D atomic-thin nanoplates with non-layered structure on SiO2 /Si substrate at low temperatures is rare, which hinders the study of their properties and applications at atomic-thin thickness limits. In this study, the synthesis of ultrathin, non-layered α-In2 Te3 nanoplates is demonstrated using a BiOCl-assisted chemical vapor deposition method at a temperature below 350 °C on SiO2 /Si substrate. Comprehensive characterization results confirm the high-quality single crystal is the low-temperature cubic phase α-In2 Te3 , possessing a noncentrosymmetric defected ZnS structure with good second harmonic generation. Moreover, α-In2 Te3 is revealed to be a p-type semiconductor with a direct and narrow bandgap value of 0.76 eV. The field effect transistor exhibits a high mobility of 18 cm2 V-1 s-1 , and the photodetector demonstrates stable photoswitching behavior within a broadband photoresponse from 405 to 1064 nm, with a satisfactory response time of τrise = 1 ms. Notably, the α-In2 Te3 nanoplates exhibit good stability against ambient environments. Together, these findings establish α-In2 Te3 nanoplates as promising candidates for next-generation high-performance photonics and electronics.
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Affiliation(s)
- Ying Huangfu
- Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Biao Qin
- State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Ping Lu
- Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Qiankun Zhang
- School of Mechanical Engineering and Mechanics, Xiangtan University, Xiangtan, 411105, China
| | - Wei Li
- Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Jingyi Liang
- Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Zhaoming Liang
- National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Jialing Liu
- Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Miaomiao Liu
- Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Xiaohui Lin
- Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Xu Li
- Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Muhammad Zeeshan Saeed
- Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Zhengwei Zhang
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Jia Li
- Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Bo Li
- College of Semiconductors (College of Integrated Circuits), Hunan University, Changsha, 410082, China
| | - Xidong Duan
- Hunan Provincial Key Laboratory of Two-Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
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Jiang J, Xu W, Sun Z, Fu L, Zhang S, Qin B, Fan T, Li G, Chen S, Yang S, Ge W, Shen B, Tang N. Wavelength-Controlled Photoconductance Polarity Switching via Harnessing Defects in Doped PdSe 2 for Artificial Synaptic Features. Small 2023:e2306068. [PMID: 37963834 DOI: 10.1002/smll.202306068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 10/23/2023] [Indexed: 11/16/2023]
Abstract
Optoelectronic synapses are currently drawing significant attention as fundamental building blocks of neuromorphic computing to mimic brain functions. In this study, a two-terminal synaptic device based on a doped PdSe2 flake is proposed to imitate the key neural functions in an optical pathway. Due to the wavelength-dependent desorption of oxygen clusters near the intrinsic selenide vacancy defects, the doped PdSe2 photodetector achieves a high negative photoresponsivity of -7.8 × 103 A W-1 at 473 nm and a positive photoresponsivity of 181 A W-1 at 1064 nm. This wavelength-selective bi-direction photoresponse endows an all-optical pathway to imitate the fundamental functions of artificial synapses on a device level, such as psychological learning and forgetting capability, as well as dynamic logic functions. The underpinning photoresponse is further demonstrated on a flexible platform, providing a viable technology for neuromorphic computing in wearable electronics. Furthermore, the p-type doping results in an effective increase of the channel's electrical conductivity and a significant reduction in power consumption. Such low-power-consuming optical synapses with simple device architecture and low-dimensional features demonstrate tremendous promise for building multifunctional artificial neuromorphic systems in the future.
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Affiliation(s)
- Jiayang Jiang
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Weiting Xu
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Zhenhao Sun
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Lei Fu
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Shixiong Zhang
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Biao Qin
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Teng Fan
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Guoping Li
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Shuaiyu Chen
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Shengxue Yang
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Weikun Ge
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Bo Shen
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, Jiangsu, 226010, China
- Collaborative Innovation Center of Quantum Matter, Beijing, 100871, China
| | - Ning Tang
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, Jiangsu, 226010, China
- Collaborative Innovation Center of Quantum Matter, Beijing, 100871, China
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3
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Xu XM, Qin B. [Advances in the diagnosis, treatment, and prognosis of acute decompensatory cirrhosis]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:756-759. [PMID: 37580261 DOI: 10.3760/cma.j.cn501113-20220526-00281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Acute decompensatory cirrhosis is a common cause of hospital admission, readmission, and death, causing a heavy burden on patients, their families, and society. This article reviews the research advancement from the perspectives of concept evolution, pathogenesis, treatment, outcome, and prognosis models, providing new ideas for preventing and treating acute decompensatory cirrhosis.
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Affiliation(s)
- X M Xu
- Department of Infectious Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - B Qin
- Department of Infectious Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
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4
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Qin B, Cao YP. Dynamic computer-generated moiré profilometry based on high-density binary coding. Appl Opt 2023; 62:1144-1151. [PMID: 36821211 DOI: 10.1364/ao.478394] [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: 10/18/2022] [Accepted: 01/06/2023] [Indexed: 06/18/2023]
Abstract
A dynamic computer-generated moiré profilometry based on high-density binary coding is proposed. For making full use of the maximum refresh rate and the maximum resolution of the digital light projector (DLP), the binary coded fringe is used to replace the conventional 256-gray-scale sinusoidal fringe, which can increase the refresh rate from the traditional 120 Hz to more than 1 kHz and meet the needs of dynamic measurement from the source. To realize the minimum equivalent wavelength and obtain the purest calculated moiré fringe, a minimum four-pixel period high-density binary fringe that satisfies the sampling theorem is designed for the DLP. The measuring accuracy of computer-generated moiré profilometry is effectively improved due to its minimum equivalent wavelength. The experimental results show the feasibility and practicability of the proposed method. It not only possesses higher measuring accuracy, but also possesses a proper potential application in dynamic three-dimensional measurement.
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Zheng P, Wei W, Liang Z, Qin B, Tian J, Wang J, Qiao R, Ren Y, Chen J, Huang C, Zhou X, Zhang G, Tang Z, Yu D, Ding F, Liu K, Xu X. Universal epitaxy of non-centrosymmetric two-dimensional single-crystal metal dichalcogenides. Nat Commun 2023; 14:592. [PMID: 36737606 PMCID: PMC9898269 DOI: 10.1038/s41467-023-36286-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 01/23/2023] [Indexed: 02/05/2023] Open
Abstract
The great challenge for the growth of non-centrosymmetric 2D single crystals is to break the equivalence of antiparallel grains. Even though this pursuit has been partially achieved in boron nitride and transition metal dichalcogenides (TMDs) growth, the key factors that determine the epitaxy of non-centrosymmetric 2D single crystals are still unclear. Here we report a universal methodology for the epitaxy of non-centrosymmetric 2D metal dichalcogenides enabled by accurate time sequence control of the simultaneous formation of grain nuclei and substrate steps. With this methodology, we have demonstrated the epitaxy of unidirectionally aligned MoS2 grains on a, c, m, n, r and v plane Al2O3 as well as MgO and TiO2 substrates. This approach is also applicable to many TMDs, such as WS2, NbS2, MoSe2, WSe2 and NbSe2. This study reveals a robust mechanism for the growth of various 2D single crystals and thus paves the way for their potential applications.
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Affiliation(s)
- Peiming Zheng
- grid.263785.d0000 0004 0368 7397Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China ,grid.263785.d0000 0004 0368 7397Guangdong-Hong Kong Joint Laboratory of Quantum Matter, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China
| | - Wenya Wei
- grid.263785.d0000 0004 0368 7397Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China ,grid.263785.d0000 0004 0368 7397Guangdong-Hong Kong Joint Laboratory of Quantum Matter, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China
| | - Zhihua Liang
- grid.263785.d0000 0004 0368 7397Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China ,grid.263785.d0000 0004 0368 7397Guangdong-Hong Kong Joint Laboratory of Quantum Matter, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China
| | - Biao Qin
- grid.11135.370000 0001 2256 9319State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871 China
| | - Jinpeng Tian
- grid.9227.e0000000119573309Key Laboratory for Nanoscale Physics and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China
| | - Jinhuan Wang
- grid.11135.370000 0001 2256 9319State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871 China
| | - Ruixi Qiao
- grid.11135.370000 0001 2256 9319International Centre for Quantum Materials, Collaborative Innovation Centre of Quantum Matter, Peking University, Beijing, 100871 China
| | - Yunlong Ren
- grid.263785.d0000 0004 0368 7397Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China ,grid.263785.d0000 0004 0368 7397Guangdong-Hong Kong Joint Laboratory of Quantum Matter, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China
| | - Junting Chen
- grid.263785.d0000 0004 0368 7397Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China ,grid.263785.d0000 0004 0368 7397Guangdong-Hong Kong Joint Laboratory of Quantum Matter, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China
| | - Chen Huang
- grid.11135.370000 0001 2256 9319State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871 China
| | - Xu Zhou
- grid.263785.d0000 0004 0368 7397Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China ,grid.263785.d0000 0004 0368 7397Guangdong-Hong Kong Joint Laboratory of Quantum Matter, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China
| | - Guangyu Zhang
- grid.9227.e0000000119573309Key Laboratory for Nanoscale Physics and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 China ,grid.511002.7Songshan Lake Materials Laboratory, Institute of Physics, Chinese Academy of Sciences, Dongguan, 523808 China
| | - Zhilie Tang
- grid.263785.d0000 0004 0368 7397Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China ,grid.263785.d0000 0004 0368 7397Guangdong-Hong Kong Joint Laboratory of Quantum Matter, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China
| | - Dapeng Yu
- grid.263817.90000 0004 1773 1790Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055 China
| | - Feng Ding
- grid.9227.e0000000119573309Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 China
| | - Kaihui Liu
- grid.11135.370000 0001 2256 9319State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871 China ,grid.11135.370000 0001 2256 9319International Centre for Quantum Materials, Collaborative Innovation Centre of Quantum Matter, Peking University, Beijing, 100871 China ,grid.511002.7Songshan Lake Materials Laboratory, Institute of Physics, Chinese Academy of Sciences, Dongguan, 523808 China
| | - Xiaozhi Xu
- grid.263785.d0000 0004 0368 7397Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China ,grid.263785.d0000 0004 0368 7397Guangdong-Hong Kong Joint Laboratory of Quantum Matter, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou, 510631 China
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Qin B, Li D, Zhou C. The resilience of conjunctive queries with inequalities. Inf Sci (N Y) 2022. [DOI: 10.1016/j.ins.2022.08.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Qin B, Wen W, Liu M, Zhang Y, Chen C. Indoor MIMO-VLC Using Angle Diversity Transmitters. Sensors (Basel) 2022; 22:5436. [PMID: 35891116 PMCID: PMC9317698 DOI: 10.3390/s22145436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/16/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
In this paper, we, for the first time, apply angle diversity transmitters (ADTs) to enhance the performance of multiple-input multiple-output visible light communication (MIMO-VLC) systems. The ADT is designed to consist of one center light emitting diode (LED) and multiple inclined side LEDs. We calculate the line-of-sight (LOS) channel gain of the MIMO-VLC system using ADTs and further derive the average achievable rate of the system. We show that the average achievable rate is related to both the inclination angle of the side LEDs and the spacing between two adjacent ADTs in the MIMO-VLC system. Simulations are conducted to verify that the average achievable rate of the ADT-enhanced MIMO-VLC system can be maximized by setting the optimal inclination angle of the side LEDs and the optimal spacing between adjacent ADTs. The obtained results further show that the average achievable rate of the ADT-enhanced MIMO-VLC system can be greatly improved when there are more LEDs in each ADT. Specifically, a substantial 42.9% average achievable rate improvement can be achieved by using the optimized ADT in comparison to using a conventional non-angle diversity transmitter.
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Affiliation(s)
- Biao Qin
- School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China; (B.Q.); (M.L.); (C.C.)
| | - Wanli Wen
- School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China; (B.Q.); (M.L.); (C.C.)
| | - Min Liu
- School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China; (B.Q.); (M.L.); (C.C.)
| | - Yanchao Zhang
- Information Optoelectronics Research Institute, Harbin Institute of Technology at Weihai, Weihai 264209, China;
| | - Chen Chen
- School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China; (B.Q.); (M.L.); (C.C.)
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Ma H, Qian Q, Qin B, Wan Z, Wu R, Zhao B, Zhang H, Zhang Z, Li J, Zhang Z, Li B, Wang L, Duan X. Controlled Synthesis of Ultrathin PtSe 2 Nanosheets with Thickness-Tunable Electrical and Magnetoelectrical Properties. Adv Sci (Weinh) 2022; 9:e2103507. [PMID: 34713628 PMCID: PMC8728827 DOI: 10.1002/advs.202103507] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Thickness-dependent chemical and physical properties have gained tremendous interest since the emergence of two-dimensional (2D) materials. Despite attractive prospects, the thickness-controlled synthesis of ultrathin nanosheets remains an outstanding challenge. Here, a chemical vapor deposition (CVD) route is reported to controllably synthesize high-quality PtSe2 nanosheets with tunable thickness and explore their thickness-dependent electronic and magnetotransport properties. Raman spectroscopic studies demonstrate all Eg , A1 g , A2 u , and Eu modes are red shift in thicker nanosheets. Electrical measurements demonstrate the 1.7 nm thick nanosheet is a semiconductor with room temperature field-effect mobility of 66 cm2 V-1 s-1 and on/off ratio of 106 . The 2.3-3.8 nm thick nanosheets show slightly gated modulation with high field-effect mobility up to 324 cm2 V-1 s-1 at room-temperature. When the thickness is over 3.8 nm, the nanosheets show metallic behavior with conductivity and breakdown current density up to 6.8 × 105 S m-1 and 6.9 × 107 A cm-2 , respectively. Interestingly, magnetoresistance (MR) studies reveal magnetic orders exist in this intrinsically non-magnetic material system, as manifested by the thickness-dependent Kondo effect, where both metal to insulator transition and negative MR appear upon cooling. Together, these studies suggest that PtSe2 is an intriguing system for both developing novel functional electronics and conducting fundamental 2D magnetism study.
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Affiliation(s)
- Huifang Ma
- Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
- Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, 211800, China
| | - Qi Qian
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, 90095, United States
| | - Biao Qin
- Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha, 410082, China
| | - Zhong Wan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California, 90095, United States
| | - Ruixia Wu
- Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Bei Zhao
- Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Hongmei Zhang
- Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Zucheng Zhang
- Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Jia Li
- Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
| | - Zhengwei Zhang
- Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
- School of Physics and Electronics, Central South University, Changsha, 410083, China
| | - Bo Li
- Department of Applied Physics, School of Physics and Electronics, Hunan University, Changsha, 410082, China
| | - Lin Wang
- Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), Nanjing, 211800, China
| | - Xidong Duan
- Hunan Key Laboratory of Two-Dimensional Materials and State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China
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9
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Zhang N, Qin B. [Research progress of sodium butyrate in metabolic-associated fatty liver disease]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:1229-1232. [PMID: 35045647 DOI: 10.3760/cma.j.cn501113-20201113-00614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Metabolic-associated fatty liver disease (MAFLD) has become the most common chronic liver disease affecting global public health, and its incidence rate is increasing year by year. The molecular mechanism of its pathogenesis is not yet fully understood, and there is a shortage of effective clinical prevention and treatment methods. Studies have found that sodium butyrate can participate in gene regulation, immune regulation, intestinal barrier function regulation, oxidative stress and other in-vivo physiological activities. Furthermore, it also plays an important role in preventing and alleviating the MAFLD occurrence and development. This article reviews the related studies of sodium butyrate on gene expression regulation, fat metabolism improvement, intestinal flora regulation, and steatohepatitis improvement with MAFLD.
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Affiliation(s)
- N Zhang
- Department of Infectious Diseases, First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - B Qin
- Department of Infectious Diseases, First Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
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Xu HB, Qin B, Zhang J, Chen YJ, Shen WW, Cao LN. Growth differentiation factor 11 relieves acute lung injury in mice by inhibiting inflammation and apoptosis. Eur Rev Med Pharmacol Sci 2021; 24:6908-6918. [PMID: 32633384 DOI: 10.26355/eurrev_202006_21682] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Acute lung injury (ALI) is the most common organ damage in sepsis and sepsis-induced ALI is a clinically extremely dangerous disease. Therefore, it is essential to find an effective way to treat ALI. We hope to provide a new target for the treatment of clinical ALI by studying the effect of GDF11 on LPS-induced ALI. MATERIALS AND METHODS C57BL/6 male mice and lipopolysaccharide (LPS) were used to induce mouse ALI. Recombinant GDF11 protein was used to treat mice to detect the effect of GDF11 on mouse ALI. In addition, BEAS-2B cells were used to further validate the effects of GDF11 on inflammation and apoptosis of alveolar epithelial cells. RESULTS Recombinant GDF11 protein significantly reduced the expression of inflammatory factors and apoptosis-related pathways in mouse lung tissues. Overexpression of GDF11 in BEAS-2B cells also significantly attenuated the levels of inflammation and apoptosis in the cells. In addition, GDF11 can reduce the activity of TLR2/HMGB1/NF-κB signaling pathway, which is an important mechanism for GDF11 to play a role in lung protection. CONCLUSIONS GDF11 can exert lung protection effects by inhibiting the TLR2/HMGB1/NF-κB signaling pathway and reduce the level of inflammation and apoptosis of the lung.
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Affiliation(s)
- H-B Xu
- Department of Emergency ICU, Caoxian People's Hospital, Heze, China.
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Kim K, Bandera EV, Xu B, Chanumolu D, Rundle AG, Hurvitz PM, Ambrosone CB, Demissie K, Hong CC, Lovasi GS, Qin B. Multilevel Risk Factors for Weight Change after Breast Cancer Diagnosis Among Black Women. Cancer Epidemiol Biomarkers Prev 2021. [DOI: 10.1158/1055-9965.epi-21-0213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
Background: Weight gain after breast cancer diagnosis increases the risk of mortality. African American/Black breast cancer survivors are more likely to have excess body weight than their White counterparts, which may contribute to their higher mortality rate. Emerging evidence suggests that post-diagnosis weight gain may result from multilevel determinants. However, no study has investigated the multilevel characteristics among Black breast cancer survivors. Objective: To evaluate associations between individual-level factors and neighborhood social and built environment factors with weight change after breast cancer diagnosis among Black women. Methods: We evaluated associations of interest among 785 women enrolled in the Women's Circle of Health Follow-Up Study (WCHFS), a longitudinal study of Black breast cancer survivors in New Jersey. Weight change was primarily based on measurements at baseline and follow-up visits (Median: 10.3 and 23.2 mo. since diagnosis, respectively). Participants were grouped into categories of stable weight (52.4%), ≥3% weight loss (20.0%), and ≥3% weight gain (27.6%). Using multivariate- adjusted multinomial logistic regression and multilevel multinomial logistic regression, we evaluated relative risk ratios (RRRs) for associations between multilevel factors and post-diagnosis weight change category. Results: Black breast cancer survivors who were older at diagnosis, had higher household income, post-menopausal status, and higher baseline BMI were less likely to gain weight compared to women with stable weight. Former smoking, higher tumor stage, and chemotherapy were associated with increased relative risk of weight gain (e.g. RRR-chemo: 1.45, 95% CI: 1.01, 2.08). Black women residing in neighborhoods in the highest tertile for density of walkable destinations had a decreased relative risk of post- diagnosis weight gain (e.g. RRR-T3 highest density vs. T1 lowest: 0.39, 95% CI: 0.20, 0.75), while those residing in neighborhoods with higher density of fast food restaurants had increased relative risk of weight gain (RRR-T3 highest density vs. T1 lowest: 1.94, 95% CI: 1.23, 3.05). Conclusion: Both individual and neighborhood factors may influence the risk of weight gain among Black women after breast cancer diagnosis.
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Jiao X, Qin B, Liu K, Wu Y, Liu J, He X, Lin M, Lin Y, Duan X, Wang H, Shao L, Zheng J, Zang Y. MA08.11 Identification of Clinical Features to Predict the Consistency of Mutational Profiles Obtained From Plasma and Tissue of Advanced NSCLC Patient. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Xiong Q, Qin B, Xin L, Yang B, Hu Y. P86.10 Real-World Efficacy and Safety of Anlotinib with and without Immunotherapy in Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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Hossain M, Qin B, Sen SK. Chemical Synthesis and Substrate Temperature Effect on Morphology of 2D Vanadium Disulfide. Crystal Research and Technology 2021. [DOI: 10.1002/crat.202000184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mongur Hossain
- Hunan Key Laboratory of Two‐Dimensional Materials, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Biao Qin
- Hunan Key Laboratory of Two‐Dimensional Materials, Department of Applied Physics, School of Physics and Electronics Hunan University Changsha 410082 China
| | - Sapan Kumar Sen
- Institute of Electronics, Atomic Energy Research Establishment Bangladesh Atomic Energy Commission Dhaka 1349 Bangladesh
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Zhang JC, Zheng YY, Tang JN, Qin B, Yang XM, Guo QQ, Guo JC, Cheng MD, Zhang ZL, Song FH, Liu ZY, Wang K, Jiang LZ, Fan L, Yue XT, Bai Y, Dai XY, Zheng RJ, Yin SS, Zhang JY. Elevated fibrinogen to platelet is associated with increased all-cause mortality among patients undergoing primary percutaneous coronary intervention. J BIOL REG HOMEOS AG 2020; 34:1401-1405. [PMID: 32933232 DOI: 10.23812/20-140-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J C Zhang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - Y Y Zheng
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - J N Tang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - B Qin
- Translational Medical Center, First Affiliated Hospital of Zhengzhou University, China
| | - X M Yang
- Department of Cardiology, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, China
| | - Q Q Guo
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - J C Guo
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - M D Cheng
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - Z L Zhang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - F H Song
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - Z Y Liu
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - K Wang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - L Z Jiang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - L Fan
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - X T Yue
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - Y Bai
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - X Y Dai
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - R J Zheng
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
| | - S S Yin
- Institute of Medicine, University of Zhengzhou, Henan Province, China
| | - J Y Zhang
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, China.,Key Laboratory of Cardiac Injury and Repair of Henan Province, China
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Kang M, Zhou H, Qin B, Han C, Tang D, Shang J, Zhao N. Zn/Al/Pb Mixed Oxides as Efficient Heterogeneous Catalysts for the Synthesis of Methyl N-Phenyl Carbamate. ACS Omega 2020; 5:22529-22535. [PMID: 32923812 PMCID: PMC7482227 DOI: 10.1021/acsomega.0c03137] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
Dimethyl carbonate aminolysis is an effective and green pathway for the synthesis of methyl N-phenyl carbamate (MPC), which is an important intermediate for the synthesis of polyurethanes and many other chemicals. In this work, we demonstrate the fabrication of Zn/Al/Pb mixed oxides as efficient and stable heterogeneous catalysts for MPC synthesis. The catalysts are prepared via facile coprecipitation and subsequent thermal annealing. Their micromorphology and physical-chemical properties are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), scanning TEM (STEM), X-ray photoelectron spectroscopy (XPS), and NH3-TPD. The results show that rather than being doped into ZnO and/or Al2O3, PbO is highly dispersed in the ZnO/Al2O3 base forming ultrafine nanoparticles. Despite the weak interactions within the mixed oxides, the high density of active sites generates outstanding catalytic activity and cycling stability for MPC synthesis, with an aniline conversion of almost 100% and MPC yield of up to 90% during six repeated tests, providing great potential for their further application.
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Affiliation(s)
- Min Kang
- Department
of Chemistry and Chemical Engineering, Zunyi
Normal College, Zunyi 563002, China
| | - Hai Zhou
- Department
of Chemistry and Chemical Engineering, Zunyi
Normal College, Zunyi 563002, China
| | - Biao Qin
- Department
of Chemistry and Chemical Engineering, Zunyi
Normal College, Zunyi 563002, China
| | - Chang Han
- College
of Biology and Agriculture, Zunyi Normal
College, Zunyi 563002, China
| | - Dajiang Tang
- Department
of Chemistry and Chemical Engineering, Zunyi
Normal College, Zunyi 563002, China
| | - Jiaoping Shang
- Department
of Chemistry and Chemical Engineering, Zunyi
Normal College, Zunyi 563002, China
| | - Ning Zhao
- State
Key Laboratory of Coal Conversion, Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
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Jiao X, Qin B, Xu Y, Gong F, Zang Y. 1987P Discordant genomic correlates of PD-L1 expression in lung adenocarcinoma among multiple cohorts using dissimilar PD-L1 testing techniques. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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19
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Qin B, Yang MX, Gao W, Zhang JD, Zhao LB, Qin HX, Chen H. Voxel-wise meta-analysis of structural changes in gray matter of Parkinson's disease patients with mild cognitive impairment. ACTA ACUST UNITED AC 2020; 53:e9275. [PMID: 32428131 PMCID: PMC7266500 DOI: 10.1590/1414-431x20209275] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 09/09/2019] [Accepted: 02/21/2020] [Indexed: 11/25/2022]
Abstract
Evidence from previous voxel-based morphometry (VBM) studies indicates that widespread brain regions are involved in Parkinson’s disease with mild cognitive impairment (PD-MCI). However, the spatial localization reported for gray matter (GM) abnormalities is heterogeneous. The aim of the present study was to quantitatively integrate studies on GM abnormalities observed in PD-MCI in order to determine whether a pattern exists. Eligible whole-brain VBM studies were identified by a systematic search of articles in PubMed and EMBASE databases spanning from 1995 to January 1, 2019. A meta-analysis was performed to investigate regional GM abnormalities in PD-MCI. The anisotropic effect size version of seed-based d mapping (AES-SDM) meta-analysis was conducted to explore the GMV differences of PD-MCI compared with PD patients with normal cognitive function (PD-NC). A total of 12 studies comprising 243 PD-MCI patients and 326 PD-NC were included in the meta-analysis. PD-MCI patients showed a robust GM decrease in the left insula and left superior temporal gyrus. Moreover, meta-regression analysis demonstrated that age, PD duration and stage, and Unified Parkinson’s Disease Rating Scale III and Mini-Mental State Examination scores might be partly correlated with the GM abnormalities observed in PD-MCI patients. The convergent findings of this quantitative meta-analysis revealed a characteristic neuroanatomical pattern in PD-MCI. The findings provide some evidence that MCI in PD may result in the breakdown of the insula and temporal gyrus, which may serve as specific regions of interest for further investigations.
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Affiliation(s)
- B Qin
- Department of Neurology, Affiliated Liuzhou People's Hospital of Guangxi University of Science and Technology/Liuzhou People's Hospital, Liuzhou, Guangxi, China
| | - M X Yang
- Department of Neurology, Affiliated Liuzhou People's Hospital of Guangxi University of Science and Technology/Liuzhou People's Hospital, Liuzhou, Guangxi, China
| | - W Gao
- Department of Neurology, Affiliated Liuzhou People's Hospital of Guangxi University of Science and Technology/Liuzhou People's Hospital, Liuzhou, Guangxi, China
| | - J D Zhang
- Department of Neurology, Affiliated Liuzhou People's Hospital of Guangxi University of Science and Technology/Liuzhou People's Hospital, Liuzhou, Guangxi, China
| | - L B Zhao
- Department of Neurology, Yongchuan Hospital of Chongqing Medical University, Chongqing, China
| | - H X Qin
- Department of Neurology, Affiliated Liuzhou People's Hospital of Guangxi University of Science and Technology/Liuzhou People's Hospital, Liuzhou, Guangxi, China
| | - H Chen
- Department of Neurology, Affiliated Liuzhou People's Hospital of Guangxi University of Science and Technology/Liuzhou People's Hospital, Liuzhou, Guangxi, China
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20
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Zhao P, Zhang BL, Liu K, Qin B, Li ZH. Overexpression of miR-638 attenuated the effects of hypoxia/reoxygenation treatment on cell viability, cell apoptosis and autophagy by targeting ATG5 in the human cardiomyocytes. Eur Rev Med Pharmacol Sci 2019; 22:8462-8471. [PMID: 30556888 DOI: 10.26355/eurrev_201812_16546] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Myocardial ischemia/reperfusion (I/R) injury largely contributed to the damage of myocardial tissues in patients with coronary disease, which may subsequently lead to heart failure. MicroRNAs (miRNAs) are considered to be involved in the process of myocardial I/R injury. The present study aimed to investigate the in vitro functional role of miR-638 in the myocardial I/R injury in the human cardiomyocytes (HCMs). PATIENTS AND METHODS MTT assay and flow cytometry assay were performed to determine cell viability and apoptosis of HCMs. Real Time-quantitative Polymerase Chain Reaction was used to determine miRNA and mRNA expression levels. The protein levels were determined by Western blot assay. RESULTS Hypoxia/reoxygenation (H/R) treatment suppressed cell viability, increased cell apoptotic rate and suppressed miR-638 expression in the HCMs. The downregulation of miR-638 suppressed cell viability and induced cell apoptosis in the HCMs. The overexpression of miR-638 attenuated the effects of H/R treatment on the cell viability and cell apoptosis in the HCMs. In addition, miR-638 suppressed the expression of autophagy-related 5 (ATG5) by targeting the 3'untranslated region of ATG5. Enforced expression of ATG5 reversed the effects of miR-638 overexpression on cell viability and cell apoptosis in H/R-treated HCMs. More importantly, H/R treatment promoted autophagy in the HCMs, and this effect was significantly reversed by miR-638 mimic transfection. CONCLUSIONS Our results suggested that the overexpression of miR-638 attenuated the effects of H/R treatment on cell viability, cell apoptosis and autophagy, at least partly by regulating the ATG5 expression in the HCMs.
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Affiliation(s)
- P Zhao
- Clinical Research Center, The Second Clinical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China.
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Zang YS, Jiao XD, Zhang XC, Qin B, Liu D, Liu L, Ni J, Ning Z, Chen L, Zhu L, Qin S, Zhou J, Ying S, Chen X, Li A, Hou T, Lizaso A, Zhang HH, Liu K, Wang Z. Tumour mutation burden analysis in a 5660-cancer-patient cohort reveals cancer type-specific mechanisms for high mutation burden. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz431.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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22
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23
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Song Q, Li J, Zhang T, Zhou Z, Song Y, Sun S, Qin B, Wang J, Zhang L, Zhang X, Wang D, Chen M, Li J, Jiao S. P2.04-17 Immune Repertoire Is a Potential Predictive Biomarker for Evaluating the Efficacy of Mutant Neoantigen Specific T Cell Combined with PD1 Antibody. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mutter R, Tu X, Qin B, Zhang Y, Zhang C, Kahila M, Nowsheen S, Yin P, Yuan J, Li H, Yu J, Zhou Q, Zhao F, Liu J, Zhang C, Dong H, Lou Z. PD-L1 is an RNA Binding Protein That Regulates the Expression of DNA Damage Response Genes and Can be Targeted to Sensitize Cancer to Radiation. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Wang F, Sui X, Xu N, Yang J, Zhao H, Fei X, Zhang Z, Luo Z, Xin Y, Qin B, Zhao X, Cao S, Zhang Y, Yang Z. The relationship between plasma homocysteine levels and MTHFR gene variation, age, and sex in Northeast China. Niger J Clin Pract 2019; 22:380-385. [PMID: 30837427 DOI: 10.4103/njcp.njcp_291_18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Hyperhomocysteinemia (HHcy) is the risk factor for cardiovascular disease and stroke. However, the impacts on the genetic variation of methylene tetrahydrofolate reductase (MTHFR) on plasma homocysteine levels in the Northeast Chinese population have not been studied. Therefore, this study was carried out to determine the relationship between HHcy and MTHFR gene variation, and whether it was influenced by age and sex of the population in Northeast China. Materials and Methods A total of 466 subjects were randomly enrolled in this study. According to the homocysteine levels (Hcy ≥ 15 μmol/L) of the subjects, they were divided into hyperhomocysteine (HHcy = 206) and normal homocysteine (Hcy = 260). Polymerase chain reaction/high-resolution dissolution curve and homocysteine determination kit methods were used for genotype testing and homocysteine detection, respectively. Results High plasma homocysteine levels are associated with MTHFR 677T and 1298A [P < 0.00, odds ratio (confidence interval) = 1.842 (1.418-2.394) >1], which is related to increasing age (Prange = 0.0005-0.0161), with the homocysteine levels of males higher than females (P < 0.0001). Conclusion High plasma homocysteine levels were linked to the MTHFR gene mutation. In addition, plasma homocysteine levels increased significantly with age with male's homocysteine levels higher than that of females.
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Affiliation(s)
- F Wang
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - X Sui
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - N Xu
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang; Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
| | - J Yang
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - H Zhao
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - X Fei
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - Z Zhang
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - Z Luo
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - Y Xin
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - B Qin
- Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
| | - X Zhao
- Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
| | - S Cao
- Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
| | - Y Zhang
- Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
| | - Z Yang
- Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
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Song S, Wang H, Jia SS, Man QQ, Qin B, Zhang J. [Analysis of correlation between serum fatty acid profile and cognitive impairment in the elderly]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 52:636-641. [PMID: 29886686 DOI: 10.3760/cma.j.issn.0253-9624.2018.06.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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 relationship between cognitive impairment and serum fatty acid profile. Methods: Participants aged ≥60 years were selected from 3 communities in Shijiazhuang in 2015. The questionnaire was performed to collect basic information. And Montreal Cognitive Assessment was applied for the evaluation of cognitive impairment. Blood lipid parameters and serum fatty acid profiles were analyzed for all the subjects. A total of 529 subjects were finally included in this research. Multivariate ordinal logistic model was used to analyze the relationship between serum fatty acid profile and cognitive impairment. Results: Normal, mild and moderate cognitive impairment accounted for 41.2% (n=218), 51.4% (n=272) and 7.4% (n=39) of all the subjects respectively. With control of age, gender, education, total cholesterol (TC), total triglyceride (TG), low density lipoprotein cholesterol (LDL-C), and high density lipoprotein cholesterol (HDL-C), the OR (95%CI) of eicosenoic acid, nervonic acid and ratio of n-3 and n-6 polyunsaturated fatty acid (n-3/n-6) was 1.06 (1.01-1.10), 0.93 (0.91-0.96), and 0.17 (0.04-0.73). Conclusion: The risk of cognitive impairment decreased with the raise of serum nervonic acid concentration and n-3/n-6, and increased with the raise of serum eicosenoic acid concentration.
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Affiliation(s)
| | | | | | | | | | - J Zhang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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Tian JZ, Xie HG, Qin B, Fan DS, Shi J, Xiao WZ, Ni JN, Wei MQ, Lu T, Wang LN, Wang YH. [The diagnostic framework for screening Alzheimer's disease in the Chinese population]. Zhonghua Nei Ke Za Zhi 2019; 58:91-101. [PMID: 30704195 DOI: 10.3760/cma.j.issn.0578-1426.2019.02.005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Criteria for diagnosis of Alzheimer's disease (AD) is not available in China. The international criteria is not a proper choice due to issues such as translation and lead to low diagnostic rate and high rate of missed diagnosis. The research group of Alzheimer's Disease Chinese (ADC) reviewed knowledge and techniques in neuropsychology, neuroimaging, molecular biology, and clinical neurology, and systematically studied the detection techniques such as memory, language, visuospatial, executive function, and medial temporal lobe visual scores on MRI, and their optimal threshold and diagnostic value for the diagnosis of AD. Through a systematic review and consensus meeting, a diagnostic framework for screening AD in the Chinese population was established. Among these methods, an operational standard for clinical pathology models increased the diagnostic sensitivity by 15%. The sensitivity and specificity of screening memory impairment increased by 18.1% and 11.6%, respectively. The sensitivity of screening medial temporal lobe atrophy increased by 24.5% and missed diagnosis was decreased by 34.5%. An operational standard for clinical biology models, incorporating the latest molecular imaging and molecular biology techniques, has enabled the early diagnosis of AD in China. The framework combines a principled diagnostic guideline with an operational screening protocol, which is applicable to all clinical settings and of great significance for the early detection, early diagnosis and early treatment of AD.
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Affiliation(s)
- J Z Tian
- Neurology Center, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - H G Xie
- Department of Geriatric Neurology, Chinese PLA General Hospital, Beijing 100853, China
| | - B Qin
- Department of Neurology, Beijing Hospital, Beijing 100730, China
| | - D S Fan
- Department of Neurology, Peking University Third Hospital, Beijing 100191, China
| | - J Shi
- Neurology Center, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - W Z Xiao
- Department of Neurology, Peking University Third Hospital, Beijing 100191, China
| | - J N Ni
- Neurology Center, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - M Q Wei
- Neurology Center, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
| | - T Lu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 100029, China
| | - L N Wang
- Department of Geriatric Neurology, Chinese PLA General Hospital, Beijing 100853, China
| | - Y H Wang
- Department of Neurology, Peking University First Hospital, Beijing 100034, China
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Tian JZ, Xie HG, Qin B, Fan DS, Lu T, Shi J, Ni JN, Wang LN, Wang YH. [Dementia screening and diagnostic framework in Chinese population]. Zhonghua Nei Ke Za Zhi 2018; 57:894-900. [PMID: 30486557 DOI: 10.3760/cma.j.issn.0578-1426.2018.12.004] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
There are no standard diagnostic criteria for Alzheimer's disease (AD) in China. The copied international criteria has led to a high rate of missed diagnosis due to issues such as translation and cultural discrepancy. Under the principles of semantic equivalence, content equivalence and performance equivalence, the research group of Alzheimer's Disease Chinese (ADC) adopted several effective methods, such as two-way translation, content conversion, performance evaluation, etc. to systematically study the cognitive, behavioral, functional, and general assessment techniques in dementia screening and diagnosis, as well as their screening thresholds and diagnostic values. We also established a dementia screening and assessment framework in clinical practice through systematic reviews and group consensus. It has improved the early diagnosis rate of dementia in China, been accepted by home and abroad academic institutions, which is of great significance for early diagnosis and treatment of dementia.
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Affiliation(s)
- J Z Tian
- Neurology Center, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, China
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Li Z, Yang S, Qin B, Xie H, Cui L, Su Q, Cai J, Gu Q. First Report of Natural Infection of Zucchini Green Mottle Mosaic Virus on Bottle Gourd in Guangxi, China. Plant Dis 2018; 102:PDIS02180341PDN. [PMID: 30160630 DOI: 10.1094/pdis-02-18-0341-pdn] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- Z Li
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences, Guangxi, Nanning, 530007, P.R. China
| | - S Yang
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences, Guangxi, Nanning, 530007, P.R. China
| | - B Qin
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences, Guangxi, Nanning, 530007, P.R. China
| | - H Xie
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences, Guangxi, Nanning, 530007, P.R. China
| | - L Cui
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences, Guangxi, Nanning, 530007, P.R. China
| | - Q Su
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences, Guangxi, Nanning, 530007, P.R. China
| | - J Cai
- Guangxi Key Laboratory of Biology for Crop Diseases and Insect Pests, Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences, Guangxi, Nanning, 530007, P.R. China
| | - Q Gu
- Henan Provincial Key Laboratory of Fruit and Cucurbit Biology, Zhengzhou Fruit Research Institute, CAAS, Zhengzhou, Henan, 450009, P.R. China
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Qin B, Chen H, Gao W, Zhao LB, Zhao MJ, Qin HX, Chen W, Chen L, Yang MX. Efficacy, acceptability, and tolerability of antidepressant treatments for patients with post-stroke depression: a network meta-analysis. ACTA ACUST UNITED AC 2018; 51:e7218. [PMID: 29742266 PMCID: PMC5972011 DOI: 10.1590/1414-431x20187218] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 01/30/2018] [Indexed: 11/22/2022]
Abstract
The aim of this study was to investigate the efficacy, acceptability, and
tolerability of antidepressants in treating post-stroke depression (PSD) by
performing a network meta-analysis of randomized controlled trials of the
current literature. Eligible studies were retrieved from online databases, and
relevant data were extracted. The primary outcome was efficacy as measured by
the mean change in overall depressive symptoms. Secondary outcomes included
discontinued treatment for any reason and specifically due to adverse events.
Fourteen trials were eligible, which included 949 participants and 9
antidepressant treatments. Few significant differences were found for all
outcomes. For the primary outcome, doxepin, paroxetine, and nortriptyline were
significantly more effective than a placebo [standardized mean differences:
−1.93 (95%CI=−3.56 to −0.29), −1.39 (95%CI=−2.59 to −0.21), and −1.25
(95%CI=−2.46 to −0.04), respectively]. Insufficient evidence exists to select a
preferred antidepressant for treating patients with post-stroke depression, and
our study provides little evidence that paroxetine may be the potential choice
when starting treatment for PSD. Future studies with paroxetine and larger
sample sizes, multiple medical centers, and sufficient intervention durations is
needed for improving the current evidence.
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Affiliation(s)
- B Qin
- Affiliated Liuzhou People's Hospital, Department of Neurology, Guangxi University of Science and Technology, Liuzhou, Guangxi, China
| | - H Chen
- Affiliated Liuzhou People's Hospital, Department of Neurology, Guangxi University of Science and Technology, Liuzhou, Guangxi, China
| | - W Gao
- Affiliated Liuzhou People's Hospital, Department of Neurology, Guangxi University of Science and Technology, Liuzhou, Guangxi, China
| | - L B Zhao
- Yongchuan Hospital, Department of Neurology, Chongqing Medical University, Chongqing, China
| | - M J Zhao
- The Second Affiliated Hospital, Department of Pharmacy, Xinxiang Medical University, Xinxiang, China
| | - H X Qin
- Affiliated Liuzhou People's Hospital, Department of Neurology, Guangxi University of Science and Technology, Liuzhou, Guangxi, China
| | - W Chen
- Affiliated Liuzhou People's Hospital, Department of Neurology, Guangxi University of Science and Technology, Liuzhou, Guangxi, China
| | - L Chen
- Affiliated Liuzhou People's Hospital, Department of Neurology, Guangxi University of Science and Technology, Liuzhou, Guangxi, China
| | - M X Yang
- Affiliated Liuzhou People's Hospital, Department of Neurology, Guangxi University of Science and Technology, Liuzhou, Guangxi, China
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31
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Wu D, Qi X, Qin B. 205P RNA-seq analysis of lung adenocarcinomas reveals different circular RNA expression profiles between non-metastatic and metastatic patients. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30478-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Li H, Hu B, Wei L, Zhou L, Zhang L, Lin Y, Qin B, Dai Y, Lu Z. Non-alcoholic fatty liver disease is associated with stroke severity and progression of brainstem infarctions. Eur J Neurol 2018; 25:577-e34. [PMID: 29281159 DOI: 10.1111/ene.13556] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 12/18/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND PURPOSE Non-alcoholic fatty liver disease (NAFLD) is closely correlated to visceral obesity, dyslipidaemia, insulin resistance and type 2 diabetes mellitus. We sought to assess the association between a specific stroke subgroup, brainstem infarctions (BSIs) and NAFLD. Furthermore, we evaluated whether NAFLD is an independent risk factor in patients with BSIs. METHODS Non-alcoholic fatty liver disease was assessed in 306 patients with radiologically confirmed BSIs via liver ultrasound. Differences between patients with and without NAFLD were compared. Data associated with stroke severity and progression after admission were collected. RESULTS Non-alcoholic fatty liver disease was found in 130 (42.5%) patients with acute BSIs; 58 (19.0%) had National Institutes of Health Stroke Scale scores >7 and 57 (18.6%) had progression after admission. Initial National Institutes of Health Stroke Scale scores, incidence of progression and stroke severity, and modified Rankin Scale scores at discharge were significantly higher in patients with NAFLD than in those without NAFLD. NAFLD was associated with stroke severity [Cox regression: hazard ratio (HR), 2.243; 95% confidence interval (CI), 1.254-4.013, P < 0.01]. This risk remained statistically significant after controlling for age, gender, diabetes mellitus and C-reactive protein (HR, 2.327; 95% CI, 1.252-4.324, P < 0.01). In addition, NAFLD was associated with progression (HR, 2.155; 95% CI, 1.201-3.865, P < 0.05) and remained significant after controlling for age, gender, diabetes mellitus, fibrinogen and C-reactive protein (HR, 2.378; 95% CI, 1.260-4.486, P < 0.01). CONCLUSIONS These results suggest that NAFLD is a potential risk factor when evaluating the severity and progression of acute BSIs. This relationship is independent of classic risk factors and metabolic syndrome features.
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Affiliation(s)
- H Li
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
| | - B Hu
- Guangdong Provincial Bioengineering Institute (Guangzhou Sugarcane Industry Research Institute), Guangzhou
| | - L Wei
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
| | - L Zhou
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou
| | - L Zhang
- Department of Neurology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, China
| | - Y Lin
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
| | - B Qin
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
| | - Y Dai
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
| | - Z Lu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou
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Lin J, Sun X, Qin B, Yu T. Improving the photocatalytic reduction of CO2 to CO for TiO2 hollow spheres through hybridization with a cobalt complex. RSC Adv 2018; 8:20543-20548. [PMID: 35542372 PMCID: PMC9080812 DOI: 10.1039/c8ra03211d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 04/14/2018] [Accepted: 05/23/2018] [Indexed: 11/21/2022] Open
Abstract
A chemical system with enhanced efficiency for electron generation and transfer was constructed by the integration of TiO2 hollow spheres with [Co(bipy)3]2+. The introduction of [Co(bipy)3]2+ remarkably enhances the photocatalytic activity of pristine semiconductor photocatalysts for heterogeneous CO2 conversion, which is attributable to the acceleration of charge separation. Of particular interest is that the excellent photocatalytic activity of the heterogeneous catalysts can be utilised for a universal photocatalytic CO2 reduction system. Yields of 16.8 μmol CO and 6.6 μmol H2 can be obtained after 2 h of the photoredox reaction, and the apparent overall quantum yield was estimated to be 0.66% under irradiation at λ = 365 nm. The present findings clearly demonstrate that the integration of electron mediators with semiconductors is a feasible process for the design and development of efficient photochemical systems for CO2 conversion. A chemical system with enhanced efficiency for electron generation and transfer was constructed by the integration of TiO2 hollow spheres with [Co(bipy)3]2+.![]()
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Affiliation(s)
- Jinliang Lin
- Department of Chemical and Engineering
- Zunyi Normal College
- Zunyi
- P. R. China
| | - Xiaoxiang Sun
- Department of Chemical and Engineering
- Qiannan Normal University for Nationalities
- DuYun
- P. R. China
| | - Biao Qin
- Department of Chemical and Engineering
- Zunyi Normal College
- Zunyi
- P. R. China
| | - Ting Yu
- Department of Chemical and Engineering
- Zunyi Normal College
- Zunyi
- P. R. China
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35
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Zhou H, Kang M, Qin B, Zhao N, Wu D, Lv B, Wang Q. Glucose-mediated template-free synthesis of hollow CuO microspheres. RSC Adv 2018; 8:14157-14163. [PMID: 35540754 PMCID: PMC9079924 DOI: 10.1039/c8ra00684a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 01/23/2018] [Accepted: 04/05/2018] [Indexed: 01/20/2023] Open
Abstract
In this work, we demonstrated a facile template-free method for the preparation of hollow CuO microspheres via a conventional hydrothermal reaction. The hollow architecture formed directly during the hydrothermal treatment of copper nitrate and glucose, without the use of template, precipitant and calcination process. The effects of reaction time, reaction temperature and glucose concentration were investigated in detail. On the basis of experimental results, the formation of hollow CuO microspheres probably proceeded via self-assemble process and the subsequent Ostwald's ripening. This synthetic strategy strongly depended on the characteristics of copper nitrate, which made it could not extend to other copper salts and/or nitrates. Even though, glucose still showed efficient morphology controlling ability with respect to nanosized transitional metal oxides, which could be used for the controllable synthesis of nanomaterials. In this work, we demonstrated a facile template-free method for the preparation of hollow CuO microspheres via a conventional hydrothermal reaction.![]()
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Affiliation(s)
- Hai Zhou
- Department of Chemistry and Chemical Engineering
- Zunyi Normal College
- Zunyi 563006
- China
- Academician Workstation of Zunyi Normal College
| | - Min Kang
- Department of Chemistry and Chemical Engineering
- Zunyi Normal College
- Zunyi 563006
- China
- Academician Workstation of Zunyi Normal College
| | - Biao Qin
- Department of Chemistry and Chemical Engineering
- Zunyi Normal College
- Zunyi 563006
- China
- Academician Workstation of Zunyi Normal College
| | - Ning Zhao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- China
| | - Dong Wu
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- China
| | - Baoliang Lv
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- China
| | - Qingjie Wang
- State Key Laboratory of Advanced Chemical Power Sources
- Zunyi 563006
- China
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Abstract
Objective: To investigate the prevalence of visual impairment and factors associated with visual impairment among people aged 50 years and above in Funing County, Jiangsu Province. Methods: Cross-sectional study. Random cluster sampling was used in selecting individuals aged ≥50 years in 30 clusters, and 5 947 individuals received visual acuity testing and eye examination. Stata 13.0 software was used to analyze the data. Multivariate logistic regression was used to detect possible factors of visual impairment such as age, gender and education. Statistical significance was defined as P< 0.05. Results: A total of 6 145 persons aged 50 years and above were enumerated, and 5 947 (96.8%) participants were examined. Based on the criteria of World Health Organization (WHO) visual impairment classification and presenting visual acuity, 138 persons were diagnosed as blindness, and 1 405 persons were diagnosed as low vision. The prevalence of blindness and low vision was 2.32% and 23.63%, respectively. And the prevalence of visual impairment was 25.95%. Based on the criteria of WHO visual impairment classification and best-corrected visual acuity, 92 persons were diagnosed as blindness, and 383 persons were diagnosed as low vision. The prevalence of blindness and low vision was 1.55% and 6.44%, respectively. And the prevalence of visual impairment was 7.99%. Concerning presenting visual acuity and best-corrected visual acuity, the prevalence of blindness and low vision was higher in old people, females and less educated persons. Cataract (46.63%) was the leading cause of blindness. Uncorrected refractive error (36.51%) was also a main cause of visual impairment. Conclusion: The prevalence of visual impairment is higher in old people, females and less educated persons in Funing County, Jiangsu Province. Cataract is still the leading cause of visual impairment. (Chin J Ophthalmol, 2017, 53: 502-508).
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Affiliation(s)
- M Yang
- Department of Ophthalmology, Affiliated Hospital of Nantong University, Nantong 226001, China
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37
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Shea-Donohue T, Qin B, Smith A. Parasites, nutrition, immune responses and biology of metabolic tissues. Parasite Immunol 2017; 39. [PMID: 28235148 DOI: 10.1111/pim.12422] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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: 09/01/2016] [Accepted: 02/21/2017] [Indexed: 02/06/2023]
Abstract
Nutritional immunology, immunometabolism and identification of novel immunotherapeutic targets are areas of active investigation in parasitology. There is a well-documented crosstalk among immune cells and cells in metabolically active tissues that is important for homeostasis. The numbers and function of these cells are altered by obesity leading to inflammation. A variety of helminths spend some part of their life cycle in the gastrointestinal tract and even entirely enteral nematode infections exert beneficial effects on glucose and lipid metabolism. The foundation of this review is the ability of enteric nematode infections to improve obesity-induced type 2 diabetes and the metabolic syndrome, which are significant health issues in developed areas. It considers the impact of nutrition and specific nutritional deficiencies, which are occur in both undeveloped and developed areas, on the host's ability mount a protective immune response against parasitic nematodes. There are a number of proposed mechanisms by which parasitic nematodes can impact metabolism including effects gastrointestinal hormones, altering epithelial function and changing the number and/or phenotype of immune cells in metabolic tissues. Nematodes can also exert their beneficial effects through Th2 cytokines that activate the transcription factor STAT6, which upregulates genes that regulate glucose and lipid metabolism.
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Affiliation(s)
- T Shea-Donohue
- Department of Radiation Oncology & Department of Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - B Qin
- Diet, Genomics, and Immunology Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD, USA
| | - A Smith
- Diet, Genomics, and Immunology Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD, USA
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Sokol RL, Qin B, Poti JM. Parenting styles and body mass index: a systematic review of prospective studies among children. Obes Rev 2017; 18:281-292. [PMID: 28086262 PMCID: PMC5436909 DOI: 10.1111/obr.12497] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 11/28/2016] [Accepted: 11/29/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND Parenting style may be an important determinant of an individual's future weight status. However, reviews that evaluate the relationship between parenting style and weight-related outcomes have not focused on prospective studies. METHODS We systematically searched PubMed, Embase and PsychInfo for studies published between 1995 and 2016 that evaluated the prospective relationship between parenting style experienced in childhood and subsequent weight outcomes. RESULTS We identified 11 prospective cohort studies. Among the eight studies that categorized parenting style into distinct groups (i.e. authoritative, authoritarian, permissive and neglectful), five provided evidence that authoritative parenting was associated with lower body mass index gains. Among the six highest quality studies, four suggested a protective role of authoritative parenting style against adverse weight-related outcomes. However, only one study controlled for a comprehensive set of confounders, and the small number of studies conducted within certain age groups precluded our ability to ascertain critical periods when parenting style is most strongly related to child weight. CONCLUSIONS The present literature supports the idea that authoritative parenting may be protective against later overweight and obesity, although findings are mixed. More prospective cohort studies of longer durations, with more sophisticated methods that examine age-varying relationships, and that control for a comprehensive set of confounders, are needed.
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Affiliation(s)
- R L Sokol
- Department of Health Behavior, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - B Qin
- Population Science, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - J M Poti
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Xu Y, Bai SJ, Lan XH, Qin B, Huang T, Xie P. Randomized controlled trials of serotonin-norepinephrine reuptake inhibitor in treating major depressive disorder in children and adolescents: a meta-analysis of efficacy and acceptability. ACTA ACUST UNITED AC 2017; 49:S0100-879X2016000600704. [PMID: 27240293 PMCID: PMC4897997 DOI: 10.1590/1414-431x20164806] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 12/29/2015] [Accepted: 03/26/2016] [Indexed: 11/22/2022]
Abstract
New generation antidepressant therapies, including serotonin-norepinephrine reuptake inhibitor (SNRIs), were introduced in the late 1980s; however, few comprehensive studies have compared the benefits and risks of various contemporary treatments for major depressive disorder (MDD) in young patients. A comprehensive literature search of PubMed, Cochrane, Embase, Web of Science, and PsycINFO databases was conducted from 1970 to January 2015. Only clinical trials that randomly assigned one SNRI or placebo to patients aged 7 to 18 years who met the diagnostic criteria for major depressive disorder were included. Treatment success, dropout rate, and suicidal ideation/attempt outcomes were measured. Primary efficacy was determined by pooling the risk ratios (RRs) of treatment response and remission. Acceptability was determined by pooling the RRs of dropouts for all reasons and for adverse effects as well as suicide-risk outcomes. Five trials with a total of 973 patients were included. SNRIs were not significantly more effective than placebo for treatment response but were for remission. The comparison of patients taking SNRIs that dropped out for all reasons and those taking placebo did not reach statistical significance. Significantly more patients taking SNRIs dropped out for adverse effects than those taking placebo. No significant difference was found in suicide-related risk outcomes. SNRI therapy does not display a superior efficacy and is not better tolerated compared to placebo in these young patients. However, duloxetine has a potential beneficial effect for depression in young populations, showing a need for further research.
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Affiliation(s)
- Y Xu
- Department of Neurology, Yongchuan Hospital, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Neurobiology, Chongqing, China.,Institute of Neuroscience, Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - S J Bai
- Department of Neurology, Yongchuan Hospital, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Neurobiology, Chongqing, China.,Institute of Neuroscience, Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - X H Lan
- Chongqing Key Laboratory of Neurobiology, Chongqing, China.,Institute of Neuroscience, Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - B Qin
- Department of Neurology, Yongchuan Hospital, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Neurobiology, Chongqing, China.,Institute of Neuroscience, Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - T Huang
- Department of Neurology, Yongchuan Hospital, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Neurobiology, Chongqing, China.,Institute of Neuroscience, Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
| | - P Xie
- Department of Neurology, Yongchuan Hospital, Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Neurobiology, Chongqing, China.,Institute of Neuroscience, Collaborative Innovation Center for Brain Science, Chongqing Medical University, Chongqing, China
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Shi J, Jie HJ, Qin B. [Interpretation of several key issues in the chinese guideline for the diagnosis of vascular mild cognitive impairment]. Zhonghua Yi Xue Za Zhi 2016; 96:3779-3781. [PMID: 28057089 DOI: 10.3760/cma.j.issn.0376-2491.2016.47.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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41
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Yu J, Qin B, Boughey JC, Moyer AM, Visscher DW, Sinnwell JP, Yin P, Thompson KJ, Docter TJ, Kalari KR, Suman VJ, Wieben ED, Felten SJ, Conners AL, Jones KN, McLaughlin SA, Copland JA III, Moreno Aspitia A, Northfelt DW, Gray RJ, Ingle JN, Lou Z, Weinshilboum R, Goetz MP, Wang L. Abstract P3-07-51: Regulation of DNA methyltransferases via TRAF6 determines breast cancer response to decitabine. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p3-07-51] [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] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Tumorigenesis involves both genetic and epigenetic changes. Epigenetic alterations are reversible and are promising cancer therapeutic targets. Decitabine (5-aza-2'-deoxycytidine), a DNA methyltransferase inhibitor, is FDA approved for hematological malignancies. However, the effect of decitabine in breast cancer is not completely understood. Previous reports indicated that one decitabine mechanism involves regulation of protein levels for DNMT1, the major DNA methyltransferase that methylates hemimethylated CpG di-nucleotides in DNA. However, the E3 ligase involved in this process has not been identified. Whether decitabine also regulates DNMT3A and 3B in a similar fashion remains unclear. Therefore, our goals were to 1) understand mechanisms underlying decitabine action, 2) test the antitumor activity of decitabine in breast cancer models and 3) identify biomarkers associated with response to decitabine.
Methods and Results: Western blots of breast cancer cell lines showed that DNMT1, DNMT3A, and DNMT3B protein levels decreased following decitabine treatment without a reduction in mRNA levels. Bioinformatic analysis of DNA methyltransferase sequences revealed a potential TRAF6 binding motif, and the interaction with TRAF6 (TNF receptor-associated factor 6) was confirmed by IP. TRAF6 functions as an E3 ligase. To determine whether TRAF6 might be the E3 ligase responsible for the degradation of DNMTs after decitabine treatment, we knocked down TRAF6 by RNA interference or knocked out the TRAF6 gene by CRISPR/Cas9. Down regulation of TRAF6 attenuated DNMT ubiquitination and increased DNMT protein levels, suggesting that TRAF6 might mediate proteasome-dependent degradation of all three DNMTs. This was further confirmed by reconstituting the knockout cells with WT and a TRAF6-C70A mutant, followed by assessing DNMT protein levels. Global DNA methylation was also increased after TRAF6 depletion and was confirmed in TRAF6 knock out cells in which DNMT levels were unaffected by decitabine. Cell cytotoxicity and colony forming assays showed that TRAF6 knockout cells were resistant to decitabine, suggesting that a major decitabine mechanism of action is through the regulation of TRAF6 which, in turn, degrades DNMTs, leading to decreased global methylation. Finally, decitabine significantly induced TRAF6 at both mRNA and protein levels, a process that might create positive feedback leading to increased degradation of DNMT proteins upon decitabine treatment. Based on these results, we further hypothesized that levels of the three DNMTs might influence decitabine response. Using 18 breast cancer patient derived xenograft (PDX) models, we found a wide range of DNMT protein levels regardless of ER/HER2 status. DNMT levels in the PDX models were directly associated with sensitivity to decitabine treatment, confirming our hypothesis.
Conclusion: Our data showed that decitabine might be an effective agent for treating breast cancer and revealed a novel mechanism underlying decitabine treatment. Baseline DNMT protein levels may serve as a biomarker for predicting decitabine drug response.
Citation Format: Yu J, Qin B, Boughey JC, Moyer AM, Visscher DW, Sinnwell JP, Yin P, Thompson KJ, Docter TJ, Kalari KR, Suman VJ, Wieben ED, Felten SJ, Conners AL, Jones KN, McLaughlin SA, Copland JA III, Moreno Aspitia A, Northfelt DW, Gray RJ, Ingle JN, Lou Z, Weinshilboum R, Goetz MP, Wang L. Regulation of DNA methyltransferases via TRAF6 determines breast cancer response to decitabine. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P3-07-51.
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Affiliation(s)
- J Yu
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - B Qin
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - JC Boughey
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - AM Moyer
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - DW Visscher
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - JP Sinnwell
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - P Yin
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - KJ Thompson
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - TJ Docter
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - KR Kalari
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - VJ Suman
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - ED Wieben
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - SJ Felten
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - AL Conners
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - KN Jones
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - SA McLaughlin
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - III Copland JA
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - A Moreno Aspitia
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - DW Northfelt
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - RJ Gray
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - JN Ingle
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - Z Lou
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - R Weinshilboum
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - MP Goetz
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
| | - L Wang
- Mayo Clinic, Rochester, MN; Mayo Clinic, Jacksonville, FL; Mayo Clinic, Scottsdale, AZ
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42
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Qin B, Gopinath A, Yang J, Gollub JP, Arratia PE. Flagellar kinematics and swimming of algal cells in viscoelastic fluids. Sci Rep 2015; 5:9190. [PMID: 25778677 PMCID: PMC4361863 DOI: 10.1038/srep09190] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [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: 11/04/2014] [Accepted: 02/23/2015] [Indexed: 12/24/2022] Open
Abstract
The motility of microorganisms is influenced greatly by their hydrodynamic interactions with the fluidic environment they inhabit. We show by direct experimental observation of the bi-flagellated alga Chlamydomonas reinhardtii that fluid elasticity and viscosity strongly influence the beating pattern - the gait - and thereby control the propulsion speed. The beating frequency and the wave speed characterizing the cyclical bending are both enhanced by fluid elasticity. Despite these enhancements, the net swimming speed of the alga is hindered for fluids that are sufficiently elastic. The origin of this complex response lies in the interplay between the elasticity-induced changes in the spatial and temporal aspects of the flagellar cycle and the buildup and subsequent relaxation of elastic stresses during the power and recovery strokes.
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Affiliation(s)
- B Qin
- Department of Mechanical Engineering &Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104
| | - A Gopinath
- 1] Department of Mechanical Engineering &Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104 [2] Department of Physics &Astronomy, Haverford College, Haverford, PA 19041
| | - J Yang
- 1] Department of Mechanical Engineering &Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104 [2] Department of Physics &Astronomy, Haverford College, Haverford, PA 19041
| | - J P Gollub
- Department of Physics &Astronomy, Haverford College, Haverford, PA 19041
| | - P E Arratia
- Department of Mechanical Engineering &Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104
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43
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Xu H, Paerl HW, Qin B, Zhu G, Hall NS, Wu Y. Determining critical nutrient thresholds needed to control harmful cyanobacterial blooms in eutrophic Lake Taihu, China. Environ Sci Technol 2015; 49:1051-1059. [PMID: 25495555 DOI: 10.1021/es503744q] [Citation(s) in RCA: 210] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nutrient overenrichment has led to dramatic increases in harmful cyanobacterial blooms, creating serious threats to drinking water supplies, ecological and economic sustainability of freshwater ecosystems. Nutrient-cyanobacterial bloom interactions were examined in eutrophic Lake Taihu, China. In situ microcosm nutrient dilution bioassays and mesocosm nutrient addition experiments were conducted to determine nitrogen (N) and phosphorus (P) concentration and load thresholds needed to control cyanobacterial bloom formation. Blooms were dominated by toxic, non N2 fixing Microcystis spp, from May to December. Dilution bioassays showed seasonality in nutrient limitation, with P-availability controlling prebloom spring conditions and N-availability controlling summer-fall blooms. Nutrient dilution and enrichment bioassays indicated that total nitrogen (TN) and total phosphorus (TP) concentration thresholds should be targeted at below 0.80 mg L(–1) and 0.05 mg L(–1), respectively, to limit intrinsic growth rates of Microcystis dominated blooms. Based on estimates of nutrient loading and observed stoichiometry of phytoplankton biomass, 61–71% TN and 20–46% TP reduction are necessary to bring Taihu’s phytoplankton biomass to “acceptable” sub-bloom conditions of less than 20 μg L(–1) chlorophyll a.
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44
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Zhang YQ, Zhu D, Zhou XY, Liu YY, Qin B, Ren GP, Xie P. Bilateral repetitive transcranial magnetic stimulation for treatment-resistant depression: a systematic review and meta-analysis of randomized controlled trials. ACTA ACUST UNITED AC 2015; 48:198-206. [PMID: 25590350 PMCID: PMC4381939 DOI: 10.1590/1414-431x20144270] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Accepted: 09/09/2014] [Indexed: 01/30/2023]
Abstract
There has been concern regarding the use of controversial paradigms for repetitive
transcranial magnetic stimulation (rTMS) to manage treatment-resistant depression
(TRD). This meta-analysis assessed the efficacy of bilateral rTMS compared with
unilateral and sham rTMS in patients with TRD. PubMed, Embase, CENTRAL, PsycINFO, Web
of Science, EAGLE and NTIS databases were searched to identify relevant studies, and
randomized controlled trials (RCTs) on bilateral rTMS for TRD patients were included.
The response was defined as the primary outcome, and remission was the secondary
outcome. Ten RCTs that included 634 patients met the eligibility criteria. The risk
ratio (RRs) of both the primary and secondary outcomes of bilateral rTMS showed
non-significant increases compared to unilateral rTMS (RR=1.01, P=0.93; odds ratio
[OR]=0.77, P=0.22). Notably, the RR of the primary bilateral rTMS outcome was
significantly increased compared to that for sham rTMS (RR=3.43, P=0.0004). The
results of our analysis demonstrated that bilateral rTMS was significantly more
effective than sham rTMS but not unilateral rTMS in patients with TRD. Thus,
bilateral rTMS may not be a useful paradigm for patients with TRD.
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Affiliation(s)
- Y Q Zhang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - D Zhu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - X Y Zhou
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Y Y Liu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - B Qin
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - G P Ren
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - P Xie
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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45
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Wang CJ, Cao S, Qin B, Zhang C, Li TT, Fu WF. Photoreduction of iron(III) to iron(0) nanoparticles for simultaneous hydrogen evolution in aqueous solution. ChemSusChem 2014; 7:1924-1933. [PMID: 24989677 DOI: 10.1002/cssc.201400065] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 01/17/2014] [Revised: 04/24/2014] [Indexed: 06/03/2023]
Abstract
Crystalline Fe nanoparticles were obtained with fluorescein (Fl) as the photosensitizer in triethylamine (TEA) or triethanolamine (TEOA) aqueous solution with FeCl3 as the Fe precursor under bright visible-light light-emitting diode (LED) irradiation. Photoinduced electron transfer from excited state Fl* and Fl(-) to Fe(3+) produced the Fe nanoparticles, which served as the active catalyst for in situ photocatalytic hydrogen production with Fl and TEA or TEOA as the photosensitizer and electron donors, respectively, in the same system. Robust hydrogen production activities were observed under the Fe nanoparticle photoreduction conditions in basic solution, and tens of milliliters of hydrogen were obtained over prolonged LED irradiation. If inorganic support materials such as NH2 -MCM-41 or reduced graphene oxide were introduced, dispersed nanoparticles with different sizes and shapes were deposited on the supports, which led to variously enhanced hydrogen production activities. The relationships between the morphologies of the Fe/H2 N-MCM-41 or Fe/graphene composites generated in situ and the hydrogen production activities were investigated systematically.
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Affiliation(s)
- Chuan-Jun Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (P.R. China), Fax: (+86) 10-6255-4670
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46
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Yang L, Yang J, Liu KF, Qin B, Chen DZ. A combined compensation method for the output voltage of an insulated core transformer power supply. Rev Sci Instrum 2014; 85:063302. [PMID: 24985809 DOI: 10.1063/1.4884340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An insulated core transformer (ICT) power supply is an ideal high-voltage generator for irradiation accelerators with energy lower than 3 MeV. However, there is a significant problem that the structure of the segmented cores leads to an increase in the leakage flux and voltage differences between rectifier disks. A high level of consistency in the output of the disks helps to achieve a compact structure by improving the utilization of both the rectifier components and the insulation distances, and consequently increase the output voltage of the power supply. The output voltages of the disks which are far away from the primary coils need to be improved to reduce their inhomogeneity. In this study, by investigating and comparing the existing compensation methods, a new combined compensation method is proposed, which increases the turns on the secondary coils and employs parallel capacitors to improve the consistency of the disks, while covering the entire operating range of the power supply. This method turns out to be both feasible and effective during the development of an ICT power supply. The non-uniformity of the output voltages of the disks is less than 3.5% from no-load to full-load, and the power supply reaches an output specification of 350 kV/60 mA.
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Affiliation(s)
- L Yang
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - J Yang
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - K F Liu
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - B Qin
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - D Z Chen
- State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
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47
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Wang Q, Wei X, Gao H, Li J, Liao J, Liu X, Qin B, Yu Y, Deng C, Tang B, Huang XF. Simvastatin reverses the downregulation of M1/4 receptor binding in 6-hydroxydopamine-induced parkinsonian rats: The association with improvements in long-term memory. Neuroscience 2014; 267:57-66. [DOI: 10.1016/j.neuroscience.2014.02.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 02/17/2014] [Accepted: 02/20/2014] [Indexed: 12/24/2022]
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48
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Huang J, Jiang J, Abdullah AS, Yang X, Wei B, Deng W, Qin B, Upur H, Zhong C, Wang Q, Wang Q, Ruan Y, Zou Y, Ye L, Xie P, Wei F, Xu N, Liang H. Factors associated with acceptability of circumcision among male drug users in western China: a cross-sectional study. Int J STD AIDS 2013; 24:541-7. [PMID: 23970769 DOI: 10.1177/0956462412473893] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study is aimed to investigate whether male circumcision (MC) is feasible among IDUs in China. 1304 drug users who attended methadone maintenance therapy clinics in Guangxi, Chongqing and Xinjiang were selected for participation by using convenience sampling, and completed a self-administered questionnaire. The factors associated with the acceptability of MC were examined via multiple logistic regression models. 45.2% (589/1304) of the participants reported an acceptance of MC. Many of the participants who were initially not willing to accept MC (715/1304) had changed their mind when they were informed that MC would reduce the risk of HIV and STDs (43.4%; 310/715), that MC is associated with few surgery-related complications (23.1%; 165/715), that the surgical procedure could be arranged free of charge (20.1%, 144/715). In the multivariate analysis, higher acceptability of MC was associated with knowledge of the hazards of phimosis (OR=2.22), the presence of phimosis (OR=14.87), and knowledge that MC can prevent AIDS and STDs (OR=1.49); while lower acceptability was associated with residing in Chongqing province (OR=0.41) and an educational level of junior (OR=0.64) and senior high (OR=0.63) school. The MC policy targeting IDUs in China should take into account these factors associated with MC acceptability.
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Affiliation(s)
- J Huang
- School of Public Health, Guangxi Medical University, Nanning, China
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Affiliation(s)
- Biao Qin
- Department of Computer Science, Renmin University of China, Beijing, China
| | - Yuni Xia
- Department of Computer & Information Science, Indiana University Purdue University Indianapolis, Indianapolis, IN, US
| | - Fang Li
- Department of Mathematic Science, Indian University Purdue University Indianapolis, Indianapolis, IN, US
| | - Jiaqi Ge
- Department of Computer & Information Science, Indiana University Purdue University Indianapolis, Indianapolis, IN, US
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50
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Abstract
Microarray technology is becoming a powerful tool for clinical diagnosis, as it has potential to discover gene expression patterns that are characteristic for a particular disease. To date, this possibility has received much attention in the context of cancer research, especially in tumor classification. However, most published articles have concentrated on the development of binary classification methods while neglected ubiquitous multiclass problems. Unfortunately, only a few multiclass classification approaches have had poor predictive accuracy. In an effort to improve classification accuracy, we developed a novel multiclass microarray data classification method. First, we applied a "one versus rest-support vector machine" to classify the samples. Then the classification confidence of each testing sample was evaluated according to its distribution in feature space and some with poor confidence were extracted. Next, a novel strategy, which we named as "class priority estimation method based on centroid distance", was used to make decisions about categories for those poor confidence samples. This approach was tested on seven benchmark multiclass microarray datasets, with encouraging results, demonstrating effectiveness and feasibility.
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Affiliation(s)
- H L Yu
- School of Computer Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China.
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