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Wang FL, Tan JL, Jin ZY, Gu CY, Lv QX, Dong YW, Lv RQ, Dong B, Chai YM. In Situ Electrochemical Rapid Induction of Highly Active γ-NiOOH Species for Industrial Anion Exchange Membrane Water Electrolyzer. Small 2024:e2310064. [PMID: 38607265 DOI: 10.1002/smll.202310064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 03/13/2024] [Indexed: 04/13/2024]
Abstract
Limited by the strong oxidation environment and sluggish reconstruction process in oxygen evolution reaction (OER), designing rapid self-reconstruction with high activity and stability electrocatalysts is crucial to promoting anion exchange membrane (AEM) water electrolyzer. Herein, trace Fe/S-modified Ni oxyhydroxide (Fe/S-NiOOH/NF) nanowires are constructed via a simple in situ electrochemical oxidation strategy based on precipitation-dissolution equilibrium. In situ characterization techniques reveal that the successful introduction of Fe and S leads to lattice disorder and boosts favorable hydroxyl capture, accelerating the formation of highly active γ-NiOOH. The Density Functional Theory (DFT) calculations have also verified that the incorporation of Fe and S optimizes the electrons redistribution and the d-band center, decreasing the energy barrier of the rate-determining step (*O→*OOH). Benefited from the unique electronic structure and intermediate adsorption, the Fe/S-NiOOH/NF catalyst only requires the overpotential of 345 mV to reach the industrial current density of 1000 mA cm-2 for 120 h. Meanwhile, assembled AEM water electrolyzer (Fe/S-NiOOH//Pt/C-60 °C) can deliver 1000 mA cm-2 at a cell voltage of 2.24 V, operating at the average energy efficiency of 71% for 100 h. In summary, this work presents a rapid self-reconstruction strategy for high-performance AEM electrocatalysts for future hydrogen economy.
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Affiliation(s)
- Fu-Li Wang
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Jin-Long Tan
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Zheng-Yang Jin
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Chao-Yue Gu
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Qian-Xi Lv
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Yi-Wen Dong
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Ren-Qing Lv
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Bin Dong
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Yong-Ming Chai
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, China
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Xie JY, Zhao J, Han JQ, Wang FL, Zhai XJ, Nan J, Wang ST, Chai YM, Dong B. Fe-doping and oxygen vacancy achieved by electrochemical activation and precipitation/dissolution equilibrium in NiOOH for oxygen evolution reaction. J Colloid Interface Sci 2023; 652:1588-1596. [PMID: 37666191 DOI: 10.1016/j.jcis.2023.08.194] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/06/2023]
Abstract
The poor conductivities and instabilities of accessible nickel oxyhydroxides hinder their use as oxygen evolution reaction (OER) electrocatalysts. Herein, we constructed Fe-NiOOH-OV-600, an Fe-doped nickel oxide hydroxide with abundant oxygen vacancies supported on nickel foam (NF), using a hydrothermal method and an electrochemical activation strategy involving 600 cycles of cyclic voltammetry, assisted by the precipitation/dissolution equilibrium of ferrous sulfide (FeS) in the electrolyte. This two-step method endows the catalyst with abundant Fe-containing active sites while maintaining the ordered structure of nickel oxide hydroxide (NiOOH). Characterization and density functional theory (DFT) calculations revealed that synergy between trace amounts of the Fe dopant and the oxygen vacancies not only promotes the generation of reconstructed active layers but also optimizes the electronic structure and adsorption capacity of the active sites. Consequently, the as-prepared Fe-NiOOH-OV-600 delivered large current densities of 100 and 1000 mA cm-2 for the OER at overpotentials of only 253 and 333 mV in 1 mol/L KOH. Moreover, the catalyst is stable for at least 100 h at 500 mA cm-2. This work provides insight into the design of efficient transition-metal-based electrocatalysts for the OER.
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Affiliation(s)
- Jing-Yi Xie
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Jie Zhao
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Jun-Qi Han
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Fu-Li Wang
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Xue-Jun Zhai
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Jun Nan
- CNOOC Tianjin Chemical Research and Design Institute Co., Ltd, Tianjin 300131, China
| | - Shu-Tao Wang
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Yong-Ming Chai
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Bin Dong
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China.
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3
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Chen JJ, Zhang JY, Fang JH, Du XY, Xia HD, Cheng B, Li N, Yu ZL, Bian JQ, Wang FL, Zheng JJ, Liu WL, Gu QS, Li ZL, Liu XY. Copper-Catalyzed Enantioconvergent Radical C(sp 3)-N Cross-Coupling of Activated Racemic Alkyl Halides with (Hetero)aromatic Amines under Ambient Conditions. J Am Chem Soc 2023. [PMID: 37392183 DOI: 10.1021/jacs.3c02387] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/03/2023]
Abstract
The enantioconvergent C(sp3)-N cross-coupling of racemic alkyl halides with (hetero)aromatic amines represents an ideal means to afford enantioenriched N-alkyl (hetero)aromatic amines yet has remained unexplored due to the catalyst poisoning specifically for strong-coordinating heteroaromatic amines. Here, we demonstrate a copper-catalyzed enantioconvergent radical C(sp3)-N cross-coupling of activated racemic alkyl halides with (hetero)aromatic amines under ambient conditions. The key to success is the judicious selection of appropriate multidentate anionic ligands through readily fine-tuning both electronic and steric properties for the formation of a stable and rigid chelating Cu complex. Thus, this kind of ligand could not only enhance the reducing capability of a copper catalyst to provide an enantioconvergent radical pathway but also avoid the coordination with other coordinating heteroatoms, thereby overcoming catalyst poisoning and/or chiral ligand displacement. This protocol covers a wide range of coupling partners (89 examples for activated racemic secondary/tertiary alkyl bromides/chlorides and (hetero)aromatic amines) with high functional group compatibility. When allied with follow-up transformations, it provides a highly flexible platform to access synthetically useful enantioenriched amine building blocks.
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Affiliation(s)
- Ji-Jun Chen
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jia-Yong Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Institute of Marine Biomedicine/Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Jia-Heng Fang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xuan-Yi Du
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Hai-Dong Xia
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin Cheng
- Institute of Marine Biomedicine/Postdoctoral Innovation Practice Base, Shenzhen Polytechnic, Shenzhen 518055, China
| | - Nan Li
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhang-Long Yu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jun-Qian Bian
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Fu-Li Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jing-Jing Zheng
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wei-Long Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhong-Liang Li
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen 518055, China
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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Dong YW, Wang FL, Wu Y, Zhai XJ, Xu N, Zhang XY, Lv RQ, Chai YM, Dong B. Directed electron regulation promoted sandwich-like CoO@FeBTC/NF with p-n heterojunctions by gel electrodeposition for oxygen evolution reaction. J Colloid Interface Sci 2023; 645:410-419. [PMID: 37156149 DOI: 10.1016/j.jcis.2023.04.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 04/05/2023] [Accepted: 04/10/2023] [Indexed: 05/10/2023]
Abstract
Metal organic framework (MOF) is currently-one of the key catalysts for oxygen evolution reaction (OER), but its catalytic performance is severely limited by electronic configuration. In this study, cobalt oxide (CoO) on nickel foam (NF) was first prepared, which then wrapped it with FeBTC synthesized by ligating isophthalic acid (BTC) with iron ions by electrodeposition to obtain CoO@FeBTC/NF p-n heterojunction structure. The catalyst requires only 255 mV overpotential to reach a current density of 100 mA cm-2, and can maintain 100 h long time stability at 500 mA cm-2 high current density. The catalytic properties are mainly related to the strong induced modulation of electrons in FeBTC by holes in the p-type CoO, which results in stronger bonding and faster electron transfer between FeBTC and hydroxide. At the same time, the uncoordinated BTC at the solid-liquid interface ionizes acidic radicals which form hydrogen bonds with the hydroxyl radicals in solution, capturing them onto the catalyst surface for the catalytic reaction. In addition, CoO@FeBTC/NF also has strong application prospects in alkaline electrolyzers, which only needs 1.78 V to reach a current density of 1 A cm-2, and it can maintain long-term stability for 12 h at this current. This study provides a new convenient and efficient approach for the control design of the electronic structure of MOF, leading to a more efficient electrocatalytic process.
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Affiliation(s)
- Yi-Wen Dong
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Fu-Li Wang
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yang Wu
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Xue-Jun Zhai
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Na Xu
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Xin-Yu Zhang
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Ren-Qing Lv
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yong-Ming Chai
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China.
| | - Bin Dong
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, PR China.
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5
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Chen JJ, Fang JH, Du XY, Zhang JY, Bian JQ, Wang FL, Luan C, Liu WL, Liu JR, Dong XY, Li ZL, Gu QS, Dong Z, Liu XY. Enantioconvergent Cu-catalyzed N-alkylation of aliphatic amines. Nature 2023:10.1038/s41586-023-05950-8. [PMID: 36940729 DOI: 10.1038/s41586-023-05950-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 03/13/2023] [Indexed: 03/23/2023]
Abstract
Chiral amines are commonly found in the pharmaceutical and agrochemical industries1. The strong demand for unnatural chiral amines has driven the development of catalytic asymmetric methods1,2. Although the N-alkylation of aliphatic amines with alkyl halides has been widely adopted for over 100 years, catalyst poisoning and unfettered reactivity have been preventing the development of a catalyst-controlled enantioselective version3-5. Herein we report the use of chiral tridentate anionic ligands to enable the copper-catalyzed chemoselective and enantioconvergent N-alkylation of aliphatic amines with α-carbonyl alkyl chlorides. This method can directly convert feedstock chemicals including ammonia and pharmaceutically-relevant amines into unnatural chiral α-amino amides under mild and robust conditions. Excellent enantioselectivity and functional group tolerance were observed. The power of the method is demonstrated in a number of complex settings, including late-stage functionalization and in the expedited synthesis of diverse amine drug molecules. The current method suggests that multidentate anionic ligands are a general solution for overcoming transition metal catalyst poisoning.
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Affiliation(s)
- Ji-Jun Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Jia-Heng Fang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Xuan-Yi Du
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Jia-Yong Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Jun-Qian Bian
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Fu-Li Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Cheng Luan
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, China
| | - Wei-Long Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Ji-Ren Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Xiao-Yang Dong
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, China
| | - Zhe Dong
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China
| | - Xin-Yuan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, China.
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6
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Wang FL, Liu L, Yang CJ, Luan C, Yang J, Chen JJ, Gu QS, Li ZL, Liu XY. Synthesis of α-Quaternary β-Lactams via Copper-Catalyzed Enantioconvergent Radical C(sp 3 )-C(sp 2 ) Cross-Coupling with Organoboronate Esters. Angew Chem Int Ed Engl 2023; 62:e202214709. [PMID: 36357331 DOI: 10.1002/anie.202214709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Indexed: 11/12/2022]
Abstract
The copper-catalyzed enantioconvergent radical C(sp3 )-C(sp2 ) cross-coupling of tertiary α-bromo-β-lactams with organoboronate esters could provide the synthetically valuable α-quaternary β-lactams. The challenge arises mainly from the construction of sterically congested quaternary stereocenters between the tertiary alkyl radicals and chiral copper(II) species. Herein, we describe our success in achieving such transformations through the utilization of a copper/hemilabile N,N,N-ligand catalyst to forge the sterically congested chiral C(sp3 )-C(sp2 ) bond via a single-electron reduction/transmetalation/bond formation catalytic cycle. The synthetic potential of this approach is shown in the straightforward conversion of the corresponding products into many valuable building blocks. We hope that the developed catalytic cycle would open up new vistas for more enantioconvergent cross-coupling reactions.
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Affiliation(s)
- Fu-Li Wang
- School of Science and Institute of Scientific Research, Great Bay University, Dongguan, 523000, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Lin Liu
- School of Science and Institute of Scientific Research, Great Bay University, Dongguan, 523000, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Chang-Jiang Yang
- School of Science and Institute of Scientific Research, Great Bay University, Dongguan, 523000, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Cheng Luan
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China.,Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jing Yang
- College of Health Science and Environmental Engineering, Shenzhen Technology University, Shenzhen, 518118, China
| | - Ji-Jun Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xin-Yuan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
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7
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Wang FL, Liu L, Yang CJ, Luan C, Yang J, Chen JJ, Gu QS, Li ZL, Liu XY. Synthesis of α‐Quaternary β‐Lactams via Copper‐Catalyzed Enantioconvergent Radical C(sp3)–C(sp2) Cross‐Coupling with Organoboronate Esters. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202214709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Fu-Li Wang
- Southern University of Science and Technology Chemistry CHINA
| | - Lin Liu
- Great Bay University School of Science and Institute of Scientific Research CHINA
| | - Chang-Jiang Yang
- Great Bay University School of Science and Institute of Scientific Research CHINA
| | - Cheng Luan
- Southern University of Science and Technology Chemistry CHINA
| | - Jing Yang
- Shenzhen Technology University College of Health Science and Environmental Engineering CHINA
| | - Ji-Jun Chen
- Southern University of Science and Technology Chemistry CHINA
| | - Qiang-Shuai Gu
- Southern University of Science and Technology Chemistry CHINA
| | - Zhong-Liang Li
- Southern University of Science and Technology Chemistry CHINA
| | - Xin-Yuan Liu
- Southern University of Science and Technology Department of chemistry No. 1088, Xueyuan Blvd., Xili, Nanshan District 518055 Shenzhen CHINA
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8
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Jiang FB, Wang FL. [The academic sources of You Ke Tie Jing]. Zhonghua Yi Shi Za Zhi 2022; 52:116-120. [PMID: 35570348 DOI: 10.3760/cma.j.cn112155-20210915-00110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
You Ke Tie Jing, as the most widely published Chinese pediatric work, first published in 1695. Its writing style was influenced by You Ke Bai Xiao Quan Shu in the Ming Dynasty. Its section of the Pediatric Tuina was related to You Ke Bai Xiao Quan Shu, Xiao Er An Mo Jing, Xiao Er Tuina Mi Zhi, and Xiao Er Tuina Mi Jue. The section of Pediatric Disease was based on You Ke Bai Xiao Quan Shu and the author's own identification of symptoms, such as febrile convulsion, fever, and umbilical wind. It documented seventy-five prescriptions of which 70 were the same as You Ke Bai Xiao Quan Shu. It can be inferred that You Ke Tie Jing was mainly based on You Ke Bai Xiao Quan Shu and also fully referred to Xiao Er An Mo Jing, Xiao Er Tuina Mi Zhi, and Xiao Er Tuina Mi Jue.
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Affiliation(s)
- F B Jiang
- China Institute for History of Medicine and Medical Literature,China Academy of Chinese Medical Sciences,Beijing 100700,China
| | - F L Wang
- China Institute for History of Medicine and Medical Literature,China Academy of Chinese Medical Sciences,Beijing 100700,China
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9
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Wang M, Wang FL, Zhang LX. [Stress information literacy in clinicians and cultivate data scientists]. Zhonghua Nei Ke Za Zhi 2022; 61:243-245. [PMID: 35263964 DOI: 10.3760/cma.j.cn112138-20211220-00900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- M Wang
- National Institute of Health Data Science at Peking University, Beijing 100191, China Advanced Institute of Information Technology, Peking University, Hangzhou 311215, China
| | - F L Wang
- National Institute of Health Data Science at Peking University, Beijing 100191, China
| | - L X Zhang
- National Institute of Health Data Science at Peking University, Beijing 100191, China Advanced Institute of Information Technology, Peking University, Hangzhou 311215, China
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10
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Wu XL, Xu QZ, Chen T, Wang FL, Jiang WH, Lyu GM, Lu G. [Establishment and analysis of prediction model for invasive subsolid pulmonary nodules based on radiomics]. Zhonghua Yi Xue Za Zhi 2022; 102:209-215. [PMID: 35042290 DOI: 10.3760/cma.j.cn112137-20210829-01965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To evaluate the best radiomic features based prediction model for identifying the histopathological subtypes of invasive adenocarcinoma or noninvasive pulmonary nodules appearing as subsolid nodules. Methods: A total of 352 patients (108 males and 244 females, median age was [M(Q1,Q3)]57 (50,65), underwent high-resolution chest CT and appearing as subsolid nodules and further treated by surgical resection whose subsequently pathological results were classified as atypical adenomatous hyperplasia (AAH), carcinoma in situ (AIS), microinvasive carcinoma (MIA), invasive adenocarcinoma (IA), from January 2015 to September 2019, in Radiology Department of Zhongda Hospital Affiliated to Southeast University and Jinling Hospital, Medical School of Nanjing University were retrospectively collected. They were divided into non-invasive group (n=233) and invasive group (n=119) according to pathological findings. According to the ratio of training set: internal test set: external test set, which is about 3∶1∶1,the patients in Zhongda Hospital Affiliated to Southeast University were randomly divided into training set (n=215, non-IA∶IA 155∶60) and internal test set(n=69, non-IA∶IA 52∶17), meanwhile a certain number of patients in Jinling Hospital, Medical School of Nanjing University(n=68, non-IA∶IA 26∶42)were randomly selected as an independent external test set. Particular quantitative parameters of the nodules, radiomic features, morphological characteristics, clinical data, and serum tumor markers were recorded. Radiomic label was constructed using LASSO regression method. The morphological model, CT model and comprehensive model were constructed by binary logistic regression and were verified in test sets, respectively. Results: Shape_MinorAxis(Gradient),Glszm_ZoneEntropy(LBP) were selected as the two most significant features based on training set. Radiomic tag=1.065 75×Shape_MinorAxis(Gradient)+0.030 58×Glszm_ZoneEntropy(LBP). Comparing the prediction performance of all models in each data cohort, the CT model (Ln(P/1-P)=-2.417 11+1.031 60×Radimic tag+1.203 06×Diameter+1.614 21×(Pleural indentation sign = Y) constructed by radiomic label, pleural depression, and quantitative parameters (diameter, average density) was much better than other models and was chosen as the optimal model, with an AUC of CT models in training cohort and test cohort was 0.954 (95%CI: 0.927-0.981), 0.865 (95%CI:0.764-0.966), better than morphological model 0.857 (95%CI:0.796-0.918), 0.818(95%CI: 0.686-0.949) and comprehensive model 0.951(95%CI: 0.921-0.981), 0.856(95%CI: 0.730-0.982), respectively. Conclusion: The integrative CT model has a better prediction efficiency for identifying invasive or noninvasive nodules appearing as subsolid nodules.
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Affiliation(s)
- X L Wu
- School of Medicine, Southeast University, Nanjing 210009, China
| | - Q Z Xu
- Department of Radiology, Zhongda Hospital Affiliated to Southeast University, Nanjing 210009, China
| | - T Chen
- School of Medicine, Southeast University, Nanjing 210009, China
| | - F L Wang
- School of Medicine, Southeast University, Nanjing 210009, China
| | - W H Jiang
- School of Medicine, Southeast University, Nanjing 210009, China
| | - G M Lyu
- Department of Diagnostic Radiology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Guangming Lu
- Department of Diagnostic Radiology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
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11
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Zhang YL, Wang FL, Ren AM. Reliability of computed molecular structures. J Comput Chem 2022; 43:465-476. [PMID: 35023181 DOI: 10.1002/jcc.26807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/05/2021] [Accepted: 12/23/2021] [Indexed: 11/08/2022]
Abstract
When the structures of 1342 molecules are optimized by 30 methods and 7 basis sets, there appear 289 (21.54%) problematic molecules and 112 (8.35%) failed ones. When 278 problematic molecules are compared, the best methods are BHandH and LC-wPBE, while B97D, BP86, HFS, VSXC, and HCTH are very unreliable. When 179 problematic molecules are computed with larger basis sets, the smallest mean absolute deviation (MAD) of bond angle (2.3°) is shown by QCISD(T)/cc-pVTZ, while the smallest MAD of bond length (0.021 Å), the best SUM1 (4.9 unit), and the best SUM2 (2.4 unit) are shown by DSDPBEP86(Full), DSDPBEP86, PBE1PBE-D3, MP2, and MP2(Full) in combination with aug-cc-pVQZ, cc-pVQZ, Def2QZVP, Def2TZVPP, and/or 6-311++G(3df,3pd). Very large basis sets, for example, larger than cc-pVTZ usually have to be used to obtain very good structures and the performances of many density-functional theory methods are encouraging. The best results may be the limit of modern computational chemistry.
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Affiliation(s)
- Yi-Liang Zhang
- College of Chemistry, Jilin University, Changchun, China
| | - Fu-Li Wang
- College of Chemistry, Jilin University, Changchun, China
| | - Ai-Min Ren
- Institute of Theoretical Chemistry, Jilin University, Changchun, China
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12
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Wang FL, Zhang XY, Zhou JC, Shi ZN, Dong B, Xie JY, Dong YW, Yu J, Chai Y. Amorphous-crystalline FeNi2S4@NiFe-LDH nanograsses by molten salt as an industrially promising electrocatalyst for oxygen evolution. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00003b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Inexpensive and accessible NiFe-based oxygen evolution reaction (OER) electrocatalyst are limited for practical industrial applications by its activity and stability under industrial conditions. Herein, FeNi2S4@NiFe-LDH heterostructure is constructed by molten...
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13
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Zhang YF, Dong XY, Cheng JT, Yang NY, Wang LL, Wang FL, Luan C, Liu J, Li ZL, Gu QS, Liu XY. Enantioconvergent Cu-Catalyzed Radical C-N Coupling of Racemic Secondary Alkyl Halides to Access α-Chiral Primary Amines. J Am Chem Soc 2021; 143:15413-15419. [PMID: 34505516 DOI: 10.1021/jacs.1c07726] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
α-Chiral alkyl primary amines are virtually universal synthetic precursors for all other α-chiral N-containing compounds ubiquitous in biological, pharmaceutical, and material sciences. The enantioselective amination of common alkyl halides with ammonia is appealing for potential rapid access to α-chiral primary amines, but has hitherto remained rare due to the multifaceted difficulties in using ammonia and the underdeveloped C(sp3)-N coupling. Here we demonstrate sulfoximines as excellent ammonia surrogates for enantioconvergent radical C-N coupling with diverse racemic secondary alkyl halides (>60 examples) by copper catalysis under mild thermal conditions. The reaction efficiently provides highly enantioenriched N-alkyl sulfoximines (up to 99% yield and >99% ee) featuring secondary benzyl, propargyl, α-carbonyl alkyl, and α-cyano alkyl stereocenters. In addition, we have converted the masked α-chiral primary amines thus obtained to various synthetic building blocks, ligands, and drugs possessing α-chiral N-functionalities, such as carbamate, carboxylamide, secondary and tertiary amine, and oxazoline, with commonly seen α-substitution patterns. These results shine light on the potential of enantioconvergent radical cross-coupling as a general chiral carbon-heteroatom formation strategy.
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Affiliation(s)
- Yu-Feng Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xiao-Yang Dong
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jiang-Tao Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ning-Yuan Yang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Li-Lei Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Fu-Li Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Cheng Luan
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Juan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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14
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Zhou YN, Fan RY, Cao YN, Wang HY, Dong B, Zhao HY, Wang FL, Yu JF, Chai YM. Oriented and robust anchoring of Fe via anodic interfacial coordination assembly on ultrathin Co hydroxides for efficient water oxidation. Nanoscale 2021; 13:13463-13472. [PMID: 34477751 DOI: 10.1039/d1nr03283f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The oriented distribution and strong bonding of Fe active sites in multiple metal hydroxides are crucial to modulate activity and stability for efficient oxygen evolution reaction (OER). However, the dispersion and inevitable dissolution of Fe species still need to be addressed through deliberate design. Here, trace amounts of Fe chelated with tannic acid (TA) are precisely anchored to ultrathin Co hydroxides (TF@Co(OH)2-t) through a new anodic interfacial coordination assembly strategy: firstly, the ZIF-67@Co(OH)2 precursor with ultrathin Co(OH)2 nanosheets vertically grown on the shell, provides abundant active sites and sufficient anchoring regions for subsequent TA-Fe coating; secondly, the TA-Fe ligand network quickly and robustly coats the surface of the Co(OH)2via positive potential-driven chronopotentiometry, yielding TF@Co(OH)2-t with good dispersion and controllable Fe species. The TA-Fe network efficiently activates Co species and prevents the dissolution of Fe ions. Physical characterization and DFT simulations reveal that the optimized OER activity with 317 mV at 10 mA cm-2 for TF@Co(OH)2-500 can be attributed to the accelerated electron transfer, increased active sites, and the moderate fall in d-band center levels due to Fe integration. Moreover, prolonged stability is realized benefiting from the robust TA-Fe coating protecting the actives sites.
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Affiliation(s)
- Ya-Nan Zhou
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, PR China.
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15
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Zhou YN, Li MX, Dou SY, Wang HY, Dong B, Liu HJ, Zhao HY, Wang FL, Yu JF, Chai YM. Promoting Oxygen Evolution by Deep Reconstruction via Dynamic Migration of Fluorine Anions. ACS Appl Mater Interfaces 2021; 13:34438-34446. [PMID: 34264054 DOI: 10.1021/acsami.1c09308] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Promoting the reconstruction of electrocatalysts during the oxygen evolution reaction (OER) is generally regarded as a promising strategy for enhanced activity. F anions with strong electronegativity are predicted to enhance this transformation. Herein, a fluorine-anion doping route is proposed to convert the well-latticed NiMoO4@MNF to amorphous F-NiMoO4@MNF by a facile and versatile molten salt strategy. The well-defined nanorod arrays guarantee abundant exposed active sites, rapid mass transfer, and fast gas bubble release. Moreover, the emerged loose amorphous structure is conducive to the dynamic migration of F species and effective penetration of the electrolyte; therefore, the resulting exchange between F and hydroxide anions induces the formation of an active oxy(hydroxide) layer, thus finally optimizing the electronic structure and absorption/desorption energy on the surface of F-NiMoO4@MNF. The boosted OER performance of reconstructed F-NiMoO4@MNF is reliably confirmed by a low overpotential of 188 mV at 50 mA cm-2, a small Tafel slope of 33.8 mV dec-1, and favorable long-term stability. In addition, accelerated hydrogen evolution is observed, which is ascribed to the finely tuned electron distribution. This work would provide a new reconstruction route assisted by F-anion doping to the development of high-performance catalysts.
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Affiliation(s)
- Ya-Nan Zhou
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Meng-Xuan Li
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Shu-Yue Dou
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Hui-Ying Wang
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Bin Dong
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Hai-Jun Liu
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Hui-Ying Zhao
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Fu-Li Wang
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Jian-Feng Yu
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Yong-Ming Chai
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China
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16
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Li J, Tan QF, Huang Q, Zhai DS, Chen HL, Zhang Z, Wang FL. [Effectiveness of TRB3 on human hepatocellular carcinoma cells proliferation, apoptosis and migration]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:439-445. [PMID: 34107581 DOI: 10.3760/cma.j.cn501113-20190411-00119] [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
Objective: To explore the regulatory role and mechanism of tribbles pseudokinase 3 (TRB3) on hepatocarcinoma (HCC) cells proliferation, apoptosis and migration. Methods: Immunohistochemistry and Western blot were used to detect TRB3 expression in cancerous and adjacent cancerous liver tissues of HCC patients. TRB3 expression was detected in vitro in HepG2 and Huh7 hepatocarcinoma cell lines. Simultaneously, CCK8 and EdU were used to detect cell proliferation after TRB3 targeted inhibition with small interfering RNA. CCK8 and EdU were used to detect cell proliferation. Flow cytometry assay was used to detect apoptosis. Transwell assay was used to evaluate migration ability. Simultaneously, Western blot was used to detect changes in apoptosis, migration-related proteins and AKT phosphorylation activity. The mean comparison between the two groups was performed by t-test, and the comparison between multiple groups was performed by one-way analysis of variance. Results: Western blot showed that the expression of TRB3 was significantly up-regulated in HCC tissues. Compared with normal liver tissues adjacent to cancer, the relative expression levels were 0.78 ± 0.12 and 0.29 ± 0.09, respectively, P < 0.01, and the difference was statistically significant. After interfering siRNA inhibited TRB3, CCK8 and EdU tests showed that the proliferation activity of HepG2 and Huh7 cells were significantly weakened (P < 0.05). Flow cytometry results showed that the apoptotic proportions of HepG2 and Huh7 cells was significantly increased (P < 0.01). Western blot also showed that the expression of apoptosis regulatory proteins BAX and BIM were significantly increased (P < 0.01). Transwell assay results showed that the migration ability of HepG2 and Huh7 cells was decreased (P < 0.05), and the expression of migration regulatory proteins MMP4 and MMP9 was also significantly down-regulated. Western blot results showed that the AKT phosphorylation level was significantly increased. Conclusion: TRB3 regulates hepatocarcinoma cells proliferation, apoptosis and migration by inhibiting the AKT phosphorylation activity. Therefore, TRB3 may be a potential target site for the liver cancer treatment.
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Affiliation(s)
- J Li
- Department of Hepatobiliary Surgery, Affiliated Min da Hospital of Hubei Institute for Nationalities, Enshi 445000, China
| | - Q F Tan
- Department of Hepatobiliary Surgery, Affiliated Min da Hospital of Hubei Institute for Nationalities, Enshi 445000, China
| | - Q Huang
- Department of Hepatobiliary Surgery, Affiliated Min da Hospital of Hubei Institute for Nationalities, Enshi 445000, China
| | - D S Zhai
- Department of Hepatobiliary Surgery, Affiliated Min da Hospital of Hubei Institute for Nationalities, Enshi 445000, China
| | - H L Chen
- Department of Hepatobiliary Surgery, Affiliated Min da Hospital of Hubei Institute for Nationalities, Enshi 445000, China
| | - Z Zhang
- Department of Hepatobiliary Surgery, Affiliated Min da Hospital of Hubei Institute for Nationalities, Enshi 445000, China
| | - F L Wang
- Department of Hepatobiliary Surgery, Affiliated Min da Hospital of Hubei Institute for Nationalities, Enshi 445000, China
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17
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Su X, Hou NN, Yang LJ, Li PX, Yang XJ, Hou GD, Gao XL, Ma SJ, Guo F, Zhang R, Zhang WH, Qin WJ, Wang FL. The first competing risk survival nomogram in patients with papillary renal cell carcinoma. Sci Rep 2021; 11:11835. [PMID: 34088935 PMCID: PMC8178392 DOI: 10.1038/s41598-021-91217-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 05/24/2021] [Indexed: 01/15/2023] Open
Abstract
There is still a lack of competing risk analysis of patients with papillary renal cell carcinoma (pRCC) following surgery. We performed the cumulative incidence function (CIF) to estimate the absolute risks of cancer-specific mortality (CSM) and other-cause mortality (OCM) of pRCC over time, and constructed a nomogram predicting the probability of 2-, 3- and 5-year CSM based on competing risk regression. A total of 5993 pRCC patients who underwent nephrectomy between 2010 and 2016 were identified from the Surveillance, Epidemiology, and End Results (SEER) database. The 2-, 3-, 5-year CSM rates were 3.2%, 4.4% and 6.5%, respectively, and that of OCM were 3.2%, 5.0% and 9.3%, respectively. The estimates of 5-year cumulative mortality were most pronounced among patients aged > 75 years in OCM (17.0%). On multivariable analyses, age, tumor grade, T stage, N stage, and with or without bone, liver and lung metastases were identified as independent predictors of CSM following surgery and were integrated to generate the nomogram. The nomogram achieved a satisfactory discrimination with the AUCt of 0.730 at 5-year, and the calibration curves presented impressive agreements. Taken together, age-related OCM is a significant portion of all-cause mortality in elderly patients and our nomogram can be used for decision-making and patient counselling.
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Affiliation(s)
- Xing Su
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Niu-Niu Hou
- Department of Thyroid, Breast and Vascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Li-Jun Yang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Peng-Xiao Li
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Xiao-Jian Yang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Guang-Dong Hou
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Xue-Lin Gao
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Shuai-Jun Ma
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Fan Guo
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Rui Zhang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Wu-He Zhang
- Department of Urology, The 986th Hospital of Air Force, Xi'an, 710054, China
| | - Wei-Jun Qin
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China.
| | - Fu-Li Wang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China.
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Liu JC, Huang YZ, Wang FL, Hao YZ, Ma CG, Yang K, Yang YD, Xiao JL. Numerical simulation of all-optical logic gates based on hybrid-cavity semiconductor lasers. J Opt Soc Am A Opt Image Sci Vis 2021; 38:808-816. [PMID: 34143150 DOI: 10.1364/josaa.422005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
All-optical switch and multiple logic gates have been demonstrated using a hybrid-cavity semiconductor laser composed of a square microcavity and a Fabry-Perot cavity experimentally. In this paper, two-section tri-mode rate equations with optical injection terms are proposed and applied to study all-optical logic gates of NOT, NOR, and NAND operations utilizing the hybrid-cavity laser. Steady-state and dynamical characteristics of all-optical multiple logic gates are simulated, taking into account the influence of mode frequency detuning, gain suppression coefficients, mode Q factor, injection energy, and biasing current. All-optical logic NOT, NOR, and NAND gates up to 20, 15, and 20 Gbit/s are obtained numerically with dynamic extinction ratios of over 20, 20, and 10 dB, respectively, which are potential response speeds of the all-optical logic gates based on the hybrid-cavity semiconductor lasers.
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19
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Yang M, Xie JY, Yu WL, Cao YN, Dong B, Zhou YN, Wang FL, Li QZ, Zhou YL, Chai YM. Fe(Co)OOH Dynamically Stable Interface Based on Self-Sacrificial Reconstruction for Long-Term Electrochemical Water Oxidation. ACS Appl Mater Interfaces 2021; 13:17450-17458. [PMID: 33822578 DOI: 10.1021/acsami.0c22620] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
FeOOH on the real catalytic interface for the oxygen evolution reaction (OER) is chemically unstable to dissolve in alkaline media. Herein, based on the perspective of the dynamically stable interface, we purposely design the well-dispersed nanorod arrays of CoMoO4 as a host on activated iron foam (IF) to realize the optimal redeposition of FeOOH, constructing a self-sacrificial template rich in the FeOOH surface. Notably, at long-time oxidation potential, the precatalyst FeOOH-CoMoO4 can realize MoO42- dissolution and redeposition of Co oxyhydroxides on FeOOH host simultaneously, constructing a dynamically stable Fe(Co)OOH interface. The introduction of CoOOH improves conductivity and provides synergistic effect with FeOOH to lower the energy barrier for OER and maintain long-time stability, eventually exhibiting a low overpotential of 298 mV to reach the current density of 100 mA cm-2 and high stability over 60 h. This work demonstrates the feasibility of manipulating metal dissolution-redeposition process for a dynamically stable interface.
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Affiliation(s)
- Min Yang
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Jing-Yi Xie
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Wen-Li Yu
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yu-Ning Cao
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Bin Dong
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Ya-Nan Zhou
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Fu-Li Wang
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Qing-Zong Li
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, Shandong, China
| | - Yu-Lu Zhou
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, PR China
| | - Yong-Ming Chai
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum (East China), Qingdao 266580, PR China
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20
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Song HY, Wang FL. [A review on critics of Wenre Jingwei]. Zhonghua Yi Shi Za Zhi 2021; 51:126-128. [PMID: 34098707 DOI: 10.3760/cma.j.cn112155-20200915-00150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Wenre Jingwei(,Warp and Weft of Warm and Hot Disorders) is believed the masterpiece written by Wang Mengying, who was a famous physician in the Qing Dynasty. It represents the essence of Wang's theory in terms of Epidemic Febrile Diseases. It has been interpreted and analyzed by seven critics. However, these seven critics have not been widely known up to now. This paper introduces the life history of the critics and their medical achievements, in order to clarify their contributions to this book and enrich the content of medical history.
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Affiliation(s)
- H Y Song
- China Institute for History of Medicine and Medical Literature,China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - F L Wang
- China Institute for History of Medicine and Medical Literature,China Academy of Chinese Medical Sciences, Beijing 100700, China
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21
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Shan D, Yao YM, Zheng M, Wang FL, Sun JY, Xiong R, Han MJ, Hu YY. [A survey on sexual needs and factors of HIV risky sexual behaviors among elderly men at different ages in two communities of Qiandongnan Miao and Dong autonomous prefecture]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:1227-1231. [PMID: 33147921 DOI: 10.3760/cma.j.cn112150-20200113-00018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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 understand sexual needs and factors of risky sexual behaviors among elderly men at different ages in two communities of Qiandongnan Miao and Dong autonomous prefecture and provide basis for targeted HIV prevention and intervention. Methods: Two communities in the prefecture were selected as study sites. Questionnaire surveys were carried out among elderly men aged 50 and over who visited or consulted in the communities from June to December 2018, and they were tested for HIV and syphilis antibodies. Results: Among 400 elderly men, 209 (52.2%) were 50-64 years old, and 191(47.8%) were above 65 years old. They were mainly Miao people, accounting for 66.3% (265/400), and 235 (58.8%) had an education no more than 6 years. HIV awareness of the two age groups were only 25.8% (54/199) and 26.2% (50/191), respectively. Among those aged 50-64, 142 (68.0%) felt normal sexual desire, and 153 (73.6%) reported penile erections or erections in most cases whenever sex, and 52.9% (110) ejaculated most of the time. HIV prevalence was 1.0% (4/400). Compared with the over 65-year-old group, the proportion of having sex with spouse/stable partners (89.5%, 179/200), proportion of no condom use with their spouse/stable sexual partners during the most recent sex (93.8%, 168/179), proportion of having casual sex (11.0%, 23/209) and commercial sex (3.8%, 8/209) were all higher among 50-64 age group. In comparison to those aged over 65 years old, average monthly income>3 000, and use of sex helper, aged 50-64 (OR=2.70, 95%CI: 1.22-5.95), average monthly income ≤1 000 yuan (OR=2.79, 95%CI: 1.25-6.21), and no use of sex helper (OR=3.78) (95%CI: 1.65-8.67) were related factors of HIV risky sexual behavior last time. Conclusion: Elderly men in the minority prefecture had low HIV awareness. Compared with those≥65 years old, the 50-64 age group had more active sexual behaviors and higher sexual needs. Those from 50-64 age group, with lower economic level and good sexual ability were more likely to have HIV risky sexual behaviors.
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Affiliation(s)
- D Shan
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y M Yao
- Division of AIDS Control and Prevention, Guizhou Center of Disease Control and Prevention, Guiyang 550004, China
| | - M Zheng
- Division of AIDS Control and Prevention, Guizhou Center of Disease Control and Prevention, Guiyang 550004, China
| | - F L Wang
- Division of AIDS Control and Prevention, Center for Disease Control and Prevention of Qiandongnan Miao and Dong Autonomous Prefecture, Kaili 556000, China
| | - J Y Sun
- Division of AIDS Control and Prevention, Kaili Center of Disease Control and Prevention, Kaili 556000, China
| | - R Xiong
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M J Han
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y Y Hu
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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22
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Su XL, Ye L, Chen JJ, Liu XD, Jiang SP, Wang FL, Liu L, Yang CJ, Chang XY, Li ZL, Gu QS, Liu XY. Copper-Catalyzed Enantioconvergent Cross-Coupling of Racemic Alkyl Bromides with Azole C(sp 2 )-H Bonds. Angew Chem Int Ed Engl 2020; 60:380-384. [PMID: 32949177 DOI: 10.1002/anie.202009527] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 07/10/2020] [Revised: 08/21/2020] [Indexed: 11/12/2022]
Abstract
The development of enantioconvergent cross-coupling of racemic alkyl halides directly with heteroarene C(sp2 )-H bonds has been impeded by the use of a base at elevated temperature that leads to racemization. We herein report a copper(I)/cinchona-alkaloid-derived N,N,P-ligand catalytic system that enables oxidative addition with racemic alkyl bromides under mild conditions. Thus, coupling with azole C(sp2 )-H bonds has been achieved in high enantioselectivity, affording a number of potentially useful α-chiral alkylated azoles, such as 1,3,4-oxadiazoles, oxazoles, and benzo[d]oxazoles as well as 1,3,4-triazoles, for drug discovery. Mechanistic experiments indicated facile deprotonation of an azole C(sp2 )-H bond and the involvement of alkyl radical species under the reaction conditions.
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Affiliation(s)
- Xiao-Long Su
- Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi, 721013, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Liu Ye
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Ji-Jun Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiao-Dong Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Sheng-Peng Jiang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Fu-Li Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Lin Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Chang-Jiang Yang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xiao-Yong Chang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xin-Yuan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, 518055, China
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23
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Lu YL, Zhu L, Li Y, Wang N, Wang FL, Zheng H, Wang YG, Pan FM. Enhancement of charge-mediated magnetoelectric coupling in Fe 3O 4/SrTiO 3/Ba 0.6Sr 0.4TiO 3 heterostructure. J Phys Condens Matter 2020; 32:295802. [PMID: 32163930 DOI: 10.1088/1361-648x/ab7f6b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The in-plane magnetic hysteresis loops of Fe3O4/SrTiO3(STO) and Fe3O4/STO/Ba0.6Sr0.4TiO3(BSTO) heterostructures have been investigated at 200 K under various electric fields. The bottom BSTO layer of the STO/BSTO bilayer is used to improve the dielectric properties of the top STO layer. The polarization of the STO/BSTO bilayer is ∼78% larger than that of the STO layer at room temperature due to the improvement of surface topography and the contribution of electrostatic interlayer coupling. A significant enlargement (∼70%) in the magnetoelectric response of Fe3O4/STO/BSTO heterostructure has been achieved at 200 K and 300 kV cm-1 after introducing the BSTO layer, since the STO/BSTO bilayer with larger dielectric constant supplies more polarization charges at its interface to the Fe3O4 layer than the STO layer. It indicates that the dielectric bilayer improves the polarization and thus benefits the magnetoelectric coupling in the multiferroic heterostructure.
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Affiliation(s)
- Y L Lu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, People's Republic of China
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24
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Dong XY, Cheng JT, Zhang YF, Li ZL, Zhan TY, Chen JJ, Wang FL, Yang NY, Ye L, Gu QS, Liu XY. Copper-Catalyzed Asymmetric Radical 1,2-Carboalkynylation of Alkenes with Alkyl Halides and Terminal Alkynes. J Am Chem Soc 2020; 142:9501-9509. [PMID: 32338510 DOI: 10.1021/jacs.0c03130] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A copper-catalyzed intermolecular three-component asymmetric radical 1,2-carboalkynylation of alkenes has been developed, providing straightforward access to diverse chiral alkynes from readily available alkyl halides and terminal alkynes. The utilization of a cinchona alkaloid-derived multidentate N,N,P-ligand is crucial for the efficient radical generation from mildly oxidative precursors by copper and the effective inhibition of the undesired Glaser coupling side reaction. The substrate scope is broad, covering (hetero)aryl-, alkynyl-, and aminocarbonyl-substituted alkenes, (hetero)aryl and alkyl as well as silyl alkynes, and tertiary to primary alkyl radical precursors with excellent functional group compatibility. Facile transformations of the obtained chiral alkynes have also been demonstrated, highlighting the excellent complementarity of this protocol to direct 1,2-dicarbofunctionalization reactions with C(sp2/sp3)-based reagents.
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Affiliation(s)
- Xiao-Yang Dong
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.,Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jiang-Tao Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yu-Feng Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Tian-Ya Zhan
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ji-Jun Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Fu-Li Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Ning-Yuan Yang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Liu Ye
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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25
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Yang Y, Zhang YF, Li XT, Wang FL, He HY, Huang J. Application of Dispersive Liquid-Liquid Microextraction in Forensic Toxicological Analysis. Fa Yi Xue Za Zhi 2019; 35:344-348. [PMID: 31282633 DOI: 10.12116/j.issn.1004-5619.2019.03.016] [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] [Received: 11/06/2017] [Indexed: 06/09/2023]
Abstract
Currently, the main sample pretreatment methods for forensic toxic analysis are liquid-liquid extraction (LLE) and solid-phase extraction (SPE). As a simple, convenient, and low-cost LLE method, dispersion liquid-liquid microextraction (DLLME) has high enrichment factor and good extraction efficiency, and therefore has attracted the attention of many researchers in the field of toxicology analysis in recent years. As a multi-functional microextraction method, DLLME has been widely used in the analysis of pesticides, sleeping sedatives, drugs and heavy metal poisons in forensic toxic analysis. Meanwhile, it can also be used in combination with such a variety of analytical instruments as gas chromatography-electron capture detectors (GC-ECD), high performance liquid chromatography-diode array detectors (HPLC-DAD). As a sample pretreatment method, DLLME has the advantages of simple operation, less use of organic solvent, reliable results and good reproducibility, thus can meet the requirements of modern court toxic analysis.
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Affiliation(s)
- Y Yang
- People's Public Security University of China, Beijing 102600, China
| | - Y F Zhang
- Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100089, China
| | - X T Li
- People's Public Security University of China, Beijing 102600, China
| | - F L Wang
- Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100089, China
| | - H Y He
- People's Public Security University of China, Beijing 102600, China
| | - J Huang
- Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100089, China
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Qi NN, Tian S, Li X, Wang FL, Liu B. Up-regulation of microRNA-496 suppresses proliferation, invasion, migration and in vivo tumorigenicity of human osteosarcoma cells by targeting eIF4E. Biochimie 2019; 163:1-11. [PMID: 30998968 DOI: 10.1016/j.biochi.2019.04.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 04/12/2019] [Indexed: 12/30/2022]
Abstract
Osteosarcoma is an aggressive bone tumor characterized by a high level of genetic instability and recurring DNA deletions and amplifications. This study aims to investigate how microRNA-496 (miR-496) affects proliferation, invasion, and migration of human osteosarcoma (OS) cells and in vivo tumorigenicity by targeting eukaryotic translation initiation factor 4E (eIF4E). Microarray-based gene expression profiling involving OS was used in order to identify differentially expressed genes. After that, the interaction between miR-496 expression and OS patients' survival rate was determined. The expression pattern of miR-496 and eIF4E was determined in OS tissues and cells, and their potential relationship was further analyzed by using the dual luciferase reporter gene assay. With the purpose of identifying the functional role miR-496 in OS, cell proliferation, migration, and invasion were measured in cells treated with miR-496 mimic or inhibitor. A nude mouse model was constructed in order to investigate the regulatory effects of miR-496 on tumor growth in vivo by regulating eIF4E. OS cells exhibited a down-regulated expression of miR-496 and an up-regulated expression of eIF4E. miR-496 expression was positively correlated to OS patients' survival rate. Bioinformatics analysis suggested eIF4E would be a direct target of miR-496, and the expression of eIF4E was inhibited by overexpression of miR-496. miR-496 elevation was found to exert suppressive effects on OS cell proliferation, migration and invasion in vitro and tumor growth in vivo, with the effects being reversed using miR-496 depletion. Altogether, the above findings support a conclusion that miR-496 could work as a tumor suppressor in OS through down-regulation of eIF4E. This study may provide a novel target for treatment of OS.
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Affiliation(s)
- Ni-Nan Qi
- The Third Department of Orthopedics, The Fifth Hospital of Harbin, Harbin, 150040, Heilongjiang Province, PR China
| | - Shuo Tian
- The Third Department of Orthopedics, The Fifth Hospital of Harbin, Harbin, 150040, Heilongjiang Province, PR China
| | - Xin Li
- Operating Theater, The Fifth Hospital of Harbin, Harbin, 150040, Heilongjiang Province, PR China
| | - Fu-Li Wang
- The Third Department of Orthopedics, The Fifth Hospital of Harbin, Harbin, 150040, Heilongjiang Province, PR China
| | - Bin Liu
- The Second Department of Orthopedics, The Fifth Hospital of Harbin, Harbin, 150040, Heilongjiang Province, PR China.
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27
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Wu LJ, Wang FL, Zou JH, Yang J, Huang YE, Ming F, Chen XR, Chen RR, Zhu YF. [Analysis of screening strategy of group B streptococcus in the third trimester and its influence on pregnancy outcome]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:154-159. [PMID: 30893715 DOI: 10.3760/cma.j.issn.0529-567x.2019.03.003] [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 investigate the screening strategy of group B streptococcus (GBS) in the reproductive tract of women in the third trimester and analyze its impact on pregnancy outcome. Methods: A total of 85 461 pregnant women in 35-37 weeks of gestation from Bao'an Maternity and Child Health Hospital, Jinan University from January 2011 to June 2018 were enrolled. They were divided into 3 periods according to different GBS screening strategies, the unscreened period included 31 384 cases (36.72%), 33 267 cases (38.93%) were included in partial screening period, 20 810 cases (24.35%) were included in screening period. All GBS screening positive pregnant women were given intrapartum antibiotic prophylaxis (IAP). The impact on pregnancy outcomes, and the impact of different GBS collection transport and culture methods on the positive rate of GBS screening were analyzed. Results: (1) The incidence of neonatal early onset GBS disease (EOGBSD) in unscreened period was 0.03% (11/31 773), in partial screening period was 0.02%(6/33 887), and in screening period, the incidence of neonatal EOGBSD decreased to 0, the difference was statistically significant (χ(2)=7.86, P=0.02).(2) The incidence of hematogenous infection of GBS in pregnant women was 0.02%(6/33 887) in partial screening period, and there was none in screening period, there was no significant difference (adjusted χ(2)=3.75, P=0.05). (3) In the screening period, the positive rate of GBS was 14.08%(2 719/19 306), which was significantly higher than the positive rate of GBS in the partial screening period (11.48%, 2 058/17 920; χ(2)=56.12, P=0.00). (4) Antibiotic sensitivity tests of 4 777 GBS strains showed that the antibiotics with higher resistance rate were tetracycline (81.52%, 3 896/4 777), erythromycin (66.59%, 3 181/4 777), and clindamycin (64.31%, 3 072/4 777). The combination of erythromycin, clindamycin and tetracycline was the most common resistant pattern, accounting for 48.80% (2 331/4 777). No penicillin, ceftriaxone or vancomycin resistant strains was found. Conclusions: GBS screening strategy in different regions could combine the local neonatal EOGBSD incidence rate, maternal GBS colonization rate, and the socioeconomic factors to determine whether universal GBS screening or screening for high-risk maternal women. GBS screening positive rate is related to the population, scope of the investigation, the sample collection, delivery and culture methods. The multi-drug resistance rate of GBS is high.
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Affiliation(s)
| | - F L Wang
- Department of Clinical Laboratory, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - J H Zou
- Department of Clinical Laboratory, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - J Yang
- Department of Obstetrics and Gynecology, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - Y E Huang
- Department of Infection Control, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - F Ming
- Department of Obstetrics and Gynecology, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - X R Chen
- Department of Obstetrics and Gynecology, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - R R Chen
- Department of Obstetrics and Gynecology, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - Y F Zhu
- Department of Obstetrics and Gynecology, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
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28
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Wang FL, Li DD, Huang X, Liu F, Liu QB, Lan J. [miR-29c-3p targeted dishevelled 2 on osteogenesis differentiation of rat bone marrow mesenchymal stem cells in high-fat environment]. Zhonghua Kou Qiang Yi Xue Za Zhi 2019; 53:694-700. [PMID: 30392227 DOI: 10.3760/cma.j.issn.1002-0098.2018.10.009] [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 study the different expression of 4 microRNA (miRNA, miR) during the osteogenesis differentiation of bone marrow mesenchymal stem cell (BMSC) cultured in high-fat or normal environment and to explore the relationship of these miRNAs with disheveled 2 during osteogenesis differentiation. Methods: BMSC were cultured with 2 ml normal osteogenic induction (control group) and high-fat osteogenic induction (high-fat group) respectively. On the 3rd, 5th, 7th,14th, 21st day, quantitative real-time PCR (qPCR) was used to analyze expression levels of four miRNAs (miR-21-5p, miR-29c-3p, miR-138-5p and miR-351-5p), mRNA of disheveled 2, osteogenic related factors such as alkaline phosphatase (ALP), Runt-related transcription gene 2 (Runx2). And the protein was detected by Western blotting. After BMSC were transfected by 50 μl 50 nmol/L miRNA mimics/inhibitors/negative controls respectively, BMSC were put on osteogenic induction, on the 1st, 3rd, 5th, 7th day, ALP activity was detected. On the 7th day, ALP staining was to observe the degree of osteogenesis differentiation, and Western blotting was adopted to analyze the expression of dishevelled 2 and other osteogenic related factors, while qPCR was used to analyze the expression of disheveled 2 mRNA. After 293T cells were co-transfected with disheveled 2 wild-type/mutant firefly luciferase reporter plasmid with either negative control (NC) or a mimic of these four miRNAs respectively for 48 h, luciferase activities were measured. Results: On the 21th day, the expressions of miR-21-5p, miR-29c-3p, miR-138-5p and miR-351-5p in high-fat groups were higher by 20%, 60%, 340% and 4 420% respectively than those in control groups (P<0.05). The expression of ALP and Runx2 in BMSC decreased after BMSC transfected miR-21-5p and miR-29c-3p mimics, while increased after transfected miR-21-5p and miR-29c-3p inhibitors. The expression of disheveled 2 decreased by 35% after transfected by miR-29c-3p mimic, while it increased by 269% after transfected by miR-29c-3p inhibitor (P<0.05). Transfection of the miR-29c-3p mimics significantly decreased the luciferase activity of wild-type 3'-UTR compared with NC control (P<0.05). There were no statistical significances among other groups. Conclusions: miRNAs had better expression during osteogenesis differentiation of BMSC in high-fat environment; miR-29c-3p could negatively regulate the osteogenesis differentiation of BMSC by targets on dishevelled 2.
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Affiliation(s)
- F L Wang
- Department of Prosthodontics, School of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
| | - D D Li
- Department of Prosthodontics, School of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China (Present address: Department of Prosthodontics, Stomatological Hospital of Tai'an, Tai'an Shandong 271000, China)
| | - X Huang
- Department of Prosthodontics, School of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
| | - F Liu
- Department of Prosthodontics, School of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
| | - Q B Liu
- Department of Prosthodontics, School of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
| | - J Lan
- Department of Prosthodontics, School of Stomatology, Shandong University & Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Jinan 250012, China
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Han JY, Huang YT, Hao YZ, Tang M, Wang FL, Xiao JL, Yang YD, Huang YZ. Wideband frequency-tunable optoelectronic oscillator with a directly modulated AlGaInAs/InP integrated twin-square microlaser. Opt Express 2018; 26:31784-31793. [PMID: 30650758 DOI: 10.1364/oe.26.031784] [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: 09/03/2018] [Accepted: 10/31/2018] [Indexed: 06/09/2023]
Abstract
We propose and demonstrate an optoelectronic oscillator with a directly modulated AlGaInAs/InP integrated twin-square microlaser for generating wideband frequency-tunable microwave signals with low phase noise. Apart from the relaxation oscillation peak, the modulation response of the twin-square microlaser working at the mutual optical injection state exhibits a significant enhancement around the beating frequency of the lasing modes in the two square cavities owing to the photon-photon resonance. A self-sustaining oscillation can be generated around the modulation response peak with the lowest loop loss occurring at the relaxation oscillation frequency or the beating frequency, depending on the practical state of the twin-square microlaser. High-quality tunable microwave signals ranging from 2.22 to 19.52 GHz are generated with single sideband phase noises below -110 dBc/Hz at the 10 kHz offset frequency and side-mode suppression ratios of approximately 40 dB by tuning the injection currents of the twin-square microlaser.
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30
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Wang FL, Yang YD, Huang YZ, Xiao ZX, Xiao JL. Single-transverse-mode waveguide-coupled deformed hexagonal resonator microlasers. Appl Opt 2018; 57:7242-7248. [PMID: 30182985 DOI: 10.1364/ao.57.007242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
AlGaInAs/InP waveguide-coupled deformed hexagonal resonator microlasers with enhanced mode quality (Q)-factors are demonstrated for realizing single-transverse-mode operation. A circular hole is introduced to the center of the hexagonal resonators with rounded corners to enhance the mode Q-factors and suppress high-order transverse modes simultaneously. Single-mode lasing with side-mode suppression ratios up to 40 dB is obtained for the 10-μm-sidelength hexagonal microlasers with a center hole. All the lasing spectra demonstrate pure single-transverse-mode properties within the whole tuning range of injection current, and mode hopping with one, two, and three longitudinal-mode intervals is observed due to the mode Q-factor modification by the center holes. To further reduce the device size and threshold current, the deformed hexagonal resonator microlasers with the flat sides replaced by circular arcs are analyzed and demonstrated experimentally. The Q-factors of the fundamental transverse modes can be enhanced by two orders of magnitude due to the convergence effect of the circular sides by optimizing the deformation amplitude, while the single-transverse-mode property is still maintained. A threshold current of 2.4 mA is realized for a circular-side hexagonal microlaser with the side length of 8.5 μm and the deformation amplitude of 0.55 μm.
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31
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Han JY, Huang YZ, Hao YZ, Wu JL, Wang FL, Yang YD, Xiao JL. Low-phase-noise microwave generation using dual-mode microsquare laser phase locking by modulated sidebands. Opt Lett 2018; 43:4069-4072. [PMID: 30160718 DOI: 10.1364/ol.43.004069] [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: 06/05/2018] [Accepted: 07/23/2018] [Indexed: 06/08/2023]
Abstract
An effective method for millimeter-wave (mmW) carrier generation from a dual-transverse-mode microsquare laser is experimentally demonstrated. By directly modulating the dual-mode microsquare laser at 6.7 GHz, multiple sidebands are generated due to enhanced modulation nonlinearity, and the lasing modes with an interval of 40 GHz are phase-locked. MmW carriers up to 47 GHz, corresponding to seven times that of the modulation frequency, are achieved with a linewidth below 10 Hz. The single-sideband phase noises of the signals keep the same level after transmission over 2.5 km of optical fiber.
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32
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Xu ML, Hao KQ, Yang JG, Wang FL, Xiao ZX, Li W. First Report of Rhizoctonia solani AG-3 Causing Tobacco Target Spot in Yunnan, China. Plant Dis 2018; 102:PDIS02180249PDN. [PMID: 30113255 DOI: 10.1094/pdis-02-18-0249-pdn] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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)
- M L Xu
- Shandong Peanut Research Institute and Tobacco Research Institute of Chinese Academy of Agricultural Sciences (CAAS), Qingdao, Shandong, China
| | - K Q Hao
- Tobacco Research Institute of CAAS, Qingdao, Shandong, China
| | - J G Yang
- Tobacco Research Institute of CAAS, Qingdao, Shandong, China
| | - F L Wang
- Tobacco Research Institute of CAAS, Qingdao, Shandong, China
| | - Z X Xiao
- Yunnan Tobacco Company, Baoshan Branch, China
| | - W Li
- Hongyunhonghe Tobacco (Group) Co., Ltd., Kunming, China
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33
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Yu QY, Wang FL, Xu P, Wen HJ, Xiong YX, Yang J, Long Y, He HJ, Shi J, Lyu P. [Characteristics of non-marital and non-commercial heterosexual transmission of HIV infection in Miao-Dong Autonomous prefecture of Qiandongnan]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 51:977-981. [PMID: 29136741 DOI: 10.3760/cma.j.issn.0253-9624.2017.11.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: The goal of this research was to understand the demographic distribution and related factors of non-marital and non-commercial heterosexual transmission (non-commercial transmission) for HIV/AIDS (human immunodeficiency virus/acquired immunodeficiency syndrome). Methods: Data related to HIV/AIDS infected by non-marital heterosexual transmission and whose present address was in Qian Dongnan, were collected from Information System on the HIV/AIDS Prevention and Control. Information included demographic characteristics, the members of non-marital sex partners, transmission path, detection source, CD4(+)T lymphocyte level, et al. cases belong to homosexual history, injective drug use or non-classified non-marital heterosexuality transmission were excluded, totally collect HIV/AIDS 919 cases. Multivariate logistic regressions were used to analyze potential factors associated with non-marital and non-commercial heterosexual transmission. In addition, in March and June 2017, using a convenience sampling, we conducted one-to-one interviews among 10 HIV/AIDS who were infected by non-marital heterosexuality and had non-marital and non-commercial heterosexual experience in Kaili Center for Disease Control and Prevention. The content of the interview included basic information, sexual orientation, the main place of making friends and sexual behavior, attitude to commercial heterosexuality and non-martial and non-commercial heterosexuality and so on. Results: Out of the 919 cases, 645 (70.2%) were male, the proportion of non-commercial transmission was 55.06% (506). The proportion of female HIV/AIDS with non-commercial transmission was 84.7% (232), which was higher than male (42.5%(274)) (χ(2)=138.35, P<0.001). The proportion of Han HIV/AIDS with non-commercial transmission was 61.5% (275), which was higher than other religion (52.2%(412)) (χ(2)=6.32, P=0.012). The proportion of HIV/AIDS with non-commercial transmission who had 0-5 non-marital sexual partners was 58.8% (498), which was higher than who had>5 non-marital sexual partners (11.1%(8)) (χ(2)=61.10, P<0.001). The proportion of HIV/AIDS with non-commercial transmission who lived mobile was 72.9% (94), which was higher than who lived fixedly (52.2%(412)) (χ(2)=19.34, P<0.001). Qualitative interviews results revealed that the age of the respondents were 22-69. Respondents whose ages are in 22-34 were more likely to use mobile phone (4/10) and respondents whose ages are in 35-69 were less likely to look partners through party and the context of working. Conclusion: The proportion of cases being infected by non-marital and non-commercial heterosexual transmission in Qian dongnan was higher than general national levels. The characteristics of sex, marriage status, migration, vocation, the members of non-marital sex partners were significant differed between commercial heterosexual transmission and non-marital and non-commercial heterosexual transmission.
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Affiliation(s)
- Q Y Yu
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Zhu J, Wang FL, Wang HB, Dong N, Zhu XM, Wu Y, Wang YT, Yao YM. TNF-α mRNA is negatively regulated by microRNA-181a-5p in maturation of dendritic cells induced by high mobility group box-1 protein. Sci Rep 2017; 7:12239. [PMID: 28947753 PMCID: PMC5612954 DOI: 10.1038/s41598-017-12492-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 09/04/2017] [Indexed: 12/11/2022] Open
Abstract
Dendritic cell (DC) can be stimulated by both exogenous pathogen-associated molecular patterns (PAMPs) such as lipopolysaccharide (LPS) and endogenous damage-associated molecular patterns (DAMPs) such as high mobility group box-1 protein (HMGB1). MicroRNAs (miRNAs) act as post-transcriptional fine tuners of mRNA. Studies have focused mostly on the potential role of miRNAs in DCs maturation triggered by PAMPs, especially LPS, however, little is known about the regulatory mechanism underlying the effects of miRNAs in DC maturation mediated by DAMPs, including HMGB1. Here, we first profiled a miRNA microarray of DCs stimulated by HMGB1 and determined that the up-regulated miRNA miR-181a-5p may act as a regulatory miRNA in these cells. Computational algorithms predicted TNF-α 3'UTR to be targeted by miR-181a-5p, which was confirmed by the experiments involving luciferase reporters. In addition, we found that TNF-α mRNA was down-regulated by miR-181a-5p mimic, and significantly up-regulated by miR-181a-5p inhibitor. Taken together, we identified miR-181a-5p a negative regulator in HMGB1-induced immune responses by targeting TNF-α mRNA in DCs. Moreover, we suggested that miR-181a-5p may play a role in regulating DC responses to HMGB1 and serve as evidence indicating that novel therapies targeting miRNAs may be useful for treating immune dysfunction in the setting of sepsis.
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Affiliation(s)
- Jing Zhu
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, 100048, P.R. China.,Department of Clinical Laboratory, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, 100048, P.R. China
| | - Fu-Li Wang
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, 100048, P.R. China
| | - Hai-Bin Wang
- Department of Clinical Laboratory, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, 100048, P.R. China
| | - Ning Dong
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, 100048, P.R. China
| | - Xiao-Mei Zhu
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, 100048, P.R. China
| | - Yao Wu
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, 100048, P.R. China
| | - Yong-Tao Wang
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, 100048, P.R. China.,Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, P.R. China
| | - Yong-Ming Yao
- Trauma Research Center, First Hospital Affiliated to the Chinese PLA General Hospital, Beijing, 100048, P.R. China. .,State Key Laboratory of Kidney Disease, the Chinese PLA General Hospital, Beijing, 100853, P.R. China.
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Li ZC, Su YB, Bi XH, Wang QY, Wang J, Zhao JB, Liu L, Wang FL, Li DF, Lai CH. Effects of lipid form and source on digestibility of fat and fatty acids in growing pigs. J Anim Sci 2017; 95:3103-3109. [PMID: 28727102 DOI: 10.2527/jas.2016.1268] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The objective of this study was to compare the effect of source (corn DDGS, rice bran, or soybean) or form of oil (extracted or intact) on apparent total tract digestibility (ATTD) and true total tract digestibility (TTTD) of acid-hydrolyzed ether extract (AEE) and fatty acids. The study determined and compared the ATTD or TTTD of AEE and fatty acids in extracted corn oil, rice oil, and soybean oil with intact oil in corn DDGS, full-fat rice bran, and full-fat soybean. Seventy-eight barrows (initial BW = 47.2 ± 3.9 kg; Duroc × Landrace × Yorkshire) were allotted to 1 of 13 dietary treatments in a randomized complete block design with 6 barrows in each dietary treatment. The 13 experimental diets included 1 cornstarch-soybean meal basal diet (AEE, 0.56%) and 3 diets containing 6% extracted oils (corn oil, rice oil, and soybean oil) and 9 diets supplemented with 3 levels of corn DDGS (17%, 34%, and 51%), full-fat rice bran (14%, 28%, and 42%), and full-fat soybean (12%, 24%, and 36%). These diets provided about 2%, 4%, and 6% intact oil, respectively. The barrows were housed in individual metabolism crates and were fed the assigned test diets at 4% of initial BW per day. A 5-d total collection of feces followed a 7-d diet adaptation period. The ATTD of AEE were calculated for each diet. The endogenous flow of AEE associated with each ingredient and values for TTTD were calculated using regression methods. The ATTD of AEE were greater ( < 0.05) for extracted oil than for intact oil. Compared to extracted oil, intact oil had lower ( < 0.01) ATTD of palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C18:1), linoleic acid (C18:2), and linolenic acid (C18:3). However, a source by form interaction ( < 0.01) was observed for ATTD of C18:0, C18:2, and C18:3. The ATTD of C18:0, C18:2, and C18:3 in extracted corn and rice oil were greater compared with intact corn DDGS and rice oil ( < 0.05), while there was no significant difference for the ATTD of C18:0, C18:2, and C18:3 between extracted soybean oil and intact oil in full-fat soybean. In conclusion, lipids that are extracted have a greater digestibility compared with intact lipids, and this is especially true regarding saturated fatty acids. The ATTD of AEE in 2 forms of rice oil (intact oil and extracted oil) was less than the values in corn oil and soybean oil. The TTTD of AEE in corn DDGS and full-fat soybeans were greater than in full-fat rice bran.
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Ma XW, Huang YZ, Yang YD, Weng HZ, Wang FL, Tang M, Xiao JL, Du Y. All-optical flip-flop based on hybrid square-rectangular bistable lasers. Opt Lett 2017; 42:2291-2294. [PMID: 28614334 DOI: 10.1364/ol.42.002291] [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: 04/12/2017] [Accepted: 05/21/2017] [Indexed: 06/07/2023]
Abstract
A compact, simple, and bistable hybrid square-rectangular laser is experimentally demonstrated as an all-optical flip-flop memory. Controllable bistability is induced by two-mode competition, together with the saturable absorption at the square microcavity section. The all-optical set and reset operations are realized by injecting signal pulses at two-mode wavelengths, with the response times of 165 and 60 ps at the triggering pulse width of 100 ps and switching energies of 2.7 and 14.2 fJ, respectively. The robust hybrid-cavity design has an active area of 660 μm2 and permits efficient unidirectional single-mode lasing, low-power flip-flop operation, and superior fabrication tolerance for monolithic photonic integration.
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Lin JS, Wang FL, Dong XY, He WW, Yuan Y, Chen S, Liu XY. Catalytic asymmetric radical aminoperfluoroalkylation and aminodifluoromethylation of alkenes to versatile enantioenriched-fluoroalkyl amines. Nat Commun 2017; 8:14841. [PMID: 28332576 PMCID: PMC5376653 DOI: 10.1038/ncomms14841] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [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: 09/24/2016] [Accepted: 02/03/2017] [Indexed: 12/23/2022] Open
Abstract
Although great success has been achieved in asymmetric fluoroalkylation reactions via nucleophilic or electrophilic processes, the development of asymmetric radical versions of this type of reactions remains a formidable challenge because of the involvement of highly reactive radical species. Here we report a catalytic asymmetric radical aminoperfluoroalkylation and aminodifluoromethylation of alkenes with commercially available fluoroalkylsulfonyl chlorides as the radical sources, providing a versatile platform to access four types of enantioenriched α-tertiary pyrrolidines bearing β-perfluorobutanyl, trifluoromethyl, difluoroacetyl and even difluoromethyl groups in excellent yields and with excellent enantioselectivity. The key to success is not only the introduction of the CuBr/chiral phosphoric acid dual-catalytic system but also the use of silver carbonate to suppress strong background and side hydroamination reactions caused by a stoichiometric amount of the in situ generated HCl. Broad substrate scope, excellent functional group tolerance and versatile functionalization of the products make this approach very practical and attractive. Methods for the asymmetric introduction of organofluorine groups are often limited by the lack of variability in the starting materials. Here the authors report an asymmetric radical process for the introduction of fluoroalkyl groups using readily available fluoroalkylated sulfonyl chlorides.
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Affiliation(s)
- Jin-Shun Lin
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Fu-Li Wang
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Xiao-Yang Dong
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Wei-Wei He
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Yue Yuan
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Su Chen
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Department of Chemistry, South University of Science and Technology of China, Shenzhen 518055, China
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Gu XM, Ding CY, Wang N, Xu CF, Chen ZJ, Wang Q, Yao Q, Wang FL. Influence of Occupational Status on the Quality of Life of Chinese Adult Patients with Epilepsy. Chin Med J (Engl) 2017; 129:1285-90. [PMID: 27231164 PMCID: PMC4894037 DOI: 10.4103/0366-6999.182827] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: Epilepsy is one of the most common serious neurological disorders. The present study aimed to investigate the influence of occupational status on the quality of life of Chinese adult patients with epilepsy. Methods: This study surveyed 819 subjects clinically diagnosed with epilepsy for more than 1 year in 11 hospitals in Beijing; 586 were employed (71.55%). All subjects completed the case report form with inquiries on demographic data, social factors, and illness. The patients’ quality of life was assessed using the quality of life in patients with epilepsy-31 items (QOLIE-31) questionnaire. Results: The QOLIE-31 score in the employed group was significantly higher than that in the unemployed group. Furthermore, the scores in all the sections (overall quality of life, energy/fatigue, emotional well-being, seizure worry, cognition, social function, and medication effects) of the employed group were higher than those of the unemployed group. Both the employed and unemployed groups achieved the highest difference in social function. The QOLIE-31 score of students was higher than those of farmers and workers. Both the students and workers scored higher in the quality of life compared with the adult peasants living with epilepsy. The students and farmers showed significant differences in QOLIE-31 score, cognition, emotional well-being, overall quality of life, energy/fatigue, and social function. In contrast, no significant difference was noted in seizure worry and medication effects across the three different kinds of occupation. Conclusion: Occupational status might affect the quality of life of Chinese adult patients with epilepsy, and social function is the most important contributing factor.
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Affiliation(s)
- Xiang-Min Gu
- Department of Epilepsy, Graduate Training Base of Jinzhou Medical University, First Affiliated Hospital of Chinese People's Liberation Army General Hospital, Beijing 100048, China
| | - Cheng-Yun Ding
- Department of Epilepsy, First Affiliated Hospital, General Hospital of People's Liberation Army, Beijing 100048, China
| | - Ning Wang
- Department of Hospital Management, First Affiliated Hospital, General Hospital of People's Liberation Army, Beijing 100048, China
| | - Cheng-Feng Xu
- Department of Hospital Management, First Affiliated Hospital, General Hospital of People's Liberation Army, Beijing 100048, China
| | - Ze-Jie Chen
- Department of Epilepsy, First Affiliated Hospital, General Hospital of People's Liberation Army, Beijing 100048, China
| | - Qin Wang
- Department of Hospital Management, First Affiliated Hospital, General Hospital of People's Liberation Army, Beijing 100048, China
| | - Qin Yao
- Department of Hospital Management, First Affiliated Hospital, General Hospital of People's Liberation Army, Beijing 100048, China
| | - Fu-Li Wang
- Department of Hospital Management, First Affiliated Hospital, General Hospital of People's Liberation Army, Beijing 100048, China
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Wang FL, Tan YY, Gu XM, Li TR, Lu GM, Liu G, Huo TL. Comparison of Positron Emission Tomography Using 2-[18F]-fluoro-2-deoxy-D-glucose and 3-deoxy-3-[18F]-fluorothymidine in Lung Cancer Imaging. Chin Med J (Engl) 2017; 129:2926-2935. [PMID: 27958224 PMCID: PMC5198527 DOI: 10.4103/0366-6999.195468] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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] [Indexed: 11/08/2022] Open
Abstract
Background: The detection of solitary pulmonary nodules (SPNs) that may potentially develop into a malignant lesion is essential for early clinical interventions. However, grading classification based on computed tomography (CT) imaging results remains a significant challenge. The 2-[18F]-fluoro-2-deoxy-D-glucose (18F-FDG) positron emission tomography (PET)/CT imaging produces both false-positive and false-negative findings for the diagnosis of SPNs. In this study, we compared 18F-FDG and 3-deoxy-3-[18F]-fluorothymidine (18F-FLT) in lung cancer PET/CT imaging. Methods: The binding ratios of the two tracers to A549 lung cancer cells were calculated. The mouse lung cancer model was established (n = 12), and micro-PET/CT analysis using the two tracers was performed. Images using the two tracers were collected from 55 lung cancer patients with SPNs. The correlation among the cell-tracer binding ratios, standardized uptake values (SUVs), and Ki-67 proliferation marker expression were investigated. Results: The cell-tracer binding ratio for the A549 cells using the 18F-FDG was greater than the ratio using 18F-FLT (P < 0.05). The Ki-67 expression showed a significant positive correlation with the 18F-FLT binding ratio (r = 0.824, P < 0.01). The tumor-to-nontumor uptake ratio of 18F-FDG imaging in xenografts was higher than that of 18F-FLT imaging. The diagnostic sensitivity, specificity, and the accuracy of 18F-FDG for lung cancer were 89%, 67%, and 73%, respectively. Moreover, the diagnostic sensitivity, specificity, and the accuracy of 18F-FLT for lung cancer were 71%, 79%, and 76%, respectively. There was an obvious positive correlation between the lung cancer Ki-67 expression and the mean maximum SUV of 18F-FDG and 18F-FLT (r = 0.658, P < 0.05 and r = 0.724, P < 0.01, respectively). Conclusions: The 18F-FDG uptake ratio is higher than that of 18F-FLT in A549 cells at the cellular level. 18F-FLT imaging might be superior for the quantitative diagnosis of lung tumor tissue and could distinguish lung cancer nodules from other SPNs.
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Affiliation(s)
- Fu-Li Wang
- Department of Hospital Management, The First Affiliated Hospital of Chinese PLA General Hospital, Beijing 100048, China
| | - Ye-Ying Tan
- Department of Radiology, Xuzhou Center Hospital, Xuzhou, Jiangsu 221000, China
| | - Xiang-Min Gu
- Department of Hospital Management, The First Affiliated Hospital of Chinese PLA General Hospital, Beijing 100048, China
| | - Tian-Ran Li
- Department of Radiology, The First Affiliated Hospital of Chinese PLA General Hospital, Beijing 100048; Department of Radiology, Nanjing General Hospital of Chinese PLA, Nanjing, Jiangsu 210000, China
| | - Guang-Ming Lu
- Department of Radiology, Nanjing General Hospital of Chinese PLA, Nanjing, Jiangsu 210000, China
| | - Gang Liu
- Department of Radiology, The First Affiliated Hospital of Chinese PLA General Hospital, Beijing 100048, China
| | - Tian-Long Huo
- Department of Radiology, Peking University People's Hospital, Beijing 100048, China
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Abstract
Background: Epilepsy is a chronic disorder characterized by recurrent seizures and has significant psychological and social consequence for everyday living. Epilepsy affects various aspects of ones’ social life. The present study aimed to investigate the influence of marital status on the quality of life of adult Chinese patients with epilepsy. Methods: This study surveyed 805 Chinese adults who have been clinically diagnosed with epilepsy for longer than 1 year in 11 hospitals in Beijing. In this survey, 532 (66.1%) participants were married. All of them completed the case report form with enquiries on demographic data, social factors, and illness. The marriage status of adult epileptic quality of life was the dependent variable, and demographic data and clinical data were independent variables, analyzed through the multiple linear regression analysis methods. The patients’ quality of life was assessed using the Quality of Life in patients with Epilepsy-31 items (QOLIE-31) questionnaire, the Patient Health Questionnaire-9 items (PHQ-9), and the Generalized Anxiety Disorder-7 items (GAD-7). Results: The PHQ-9 and GAD-7 scores in the unmarried group (PHQ-9 = 6.0 and GAD-7 = 5.0) were significantly higher than that of the married group (PHQ-9 = 4.0 and GAD-7 =3.0). The scores of married adult patients with epilepsy on QOLIE (61.8 ± 15.3) and social function (70.9 ± 22.7) were higher than the scores of the unmarried patients aged between 20 and 44 years. The scores of married adult epileptics on the QOLIE (58.4 ± 14.6) and the energy/fatigue (62.1 ± 20.4) were higher than the scores of the unmarried patients (QOLIE = 58.4 ± 14.6 and the energy/fatigue = 62.1 ± 20.4) aged between 45 and 59 years. For the adult epilepsy patients, depression, anxiety, seizures within the last year, disease course, medical expense category, and marriage* age are negatively correlated with the quality of life. Occupation, educational level, and average monthly income are closely related to the quality of life. Conclusions: Married adult epileptic patients have better quality of life than that of unmarried adult patients in young and middle-aged age groups. Unmarried adult patients with epilepsy are more anxious and depressed than married adult patients.
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Affiliation(s)
- Fu-Li Wang
- Department of Hospital Management, First Affiliated Hospital, General Hospital of People's Liberation Army, Beijing 100048, China
| | - Xiang-Min Gu
- Department of Programmed Immunization, Center for Disease Control and Prevention of Tianjin Binhai New Area, Tianjin 300450, China
| | - Bao-Yun Hao
- Department of Programmed Immunization, Center for Disease Control and Prevention of Tianjin Binhai New Area, Tianjin 300450, China
| | - Shan Wang
- Department of Epilepsy, First Affiliated Hospital, General Hospital of People's Liberation Army, Beijing 100048, China
| | - Ze-Jie Chen
- Department of Epilepsy, First Affiliated Hospital, General Hospital of People's Liberation Army, Beijing 100048, China
| | - Cheng-Yun Ding
- Department of Epilepsy, First Affiliated Hospital, General Hospital of People's Liberation Army, Beijing 100048, China
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Li L, Gu QS, Wang N, Song P, Li ZL, Li XH, Wang FL, Liu XY. 1,2-Difunctionalization-type (hetero)arylation of unactivated alkenes triggered by radical addition/remote (hetero)aryl migration. Chem Commun (Camb) 2017; 53:4038-4041. [DOI: 10.1039/c6cc09215b] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A novel (hetero)arylation of unactivated alkenes has been developed via 1,4(5)-(hetero)aryl migration triggered by radical alkene azidation, trifluoromethylation, or phosphonylation.
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Affiliation(s)
- Lei Li
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
| | - Qiang-Shuai Gu
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
| | - Na Wang
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
| | - Ping Song
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
| | - Zhong-Liang Li
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
| | - Xiao-Hua Li
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
| | - Fu-Li Wang
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
| | - Xin-Yuan Liu
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen
- China
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Chen YF, Wu F, Li PL, Lyu ZQ, Liu L, Lyu MB, Wang FL, Lai CH. Energy content and amino acid digestibility of flaxseed expellers fed to growing pigs. J Anim Sci 2016; 94:5295-5307. [PMID: 28046153 DOI: 10.2527/jas.2016-0578] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study was conducted to determine the DE and ME as well as the apparent ileal digestibility (AID) and standardized ileal digestibility (SID) of CP and AA in flaxseed expellers fed to growing pigs. In Exp. 1, the DE and ME were determined using 66 crossbred growing pigs (Duroc × Landrace × Yorkshire; 54.2 ± 2.3 kg BW) fed 1 of 11 diets in a completely randomized design. The diets included a corn-soybean meal basal diet and 10 experimental diets containing 29.16% flaxseed expellers supplemented at the expense of corn and soybean meal. In Exp. 2, 11 growing pigs (35.5 ± 3.4 kg), fitted with a T-cannula at the distal ileum, were assigned to 6 × 11 Youden square design with 6 periods and 11 diets. The diets included a N-free diet based on cornstarch and sucrose and 10 test diets containing 40% flaxseed expellers as the sole source of AA. Chromic oxide (0.3%) was used as an indigestible marker. There was considerable variation in the chemical composition among the 10 flaxseed expellers. The CV were greater than 10% for ether extract (EE), NDF, ADF, crude fiber, and Ca and ranged from 7 to 12% for the AA. On a DM basis, the DE and ME ranged from 2,786 to 3,730 and from 2,588 to 3,530 kcal/kg, respectively. The apparent total tract digestibility of GE ranged from 59.91 to 75.83% (mean = 70.92%). Ether extract, GE, and NDF were the best predictors to determine DE and ME. The best prediction equations were DE = -3,231 + (1.58 × GE) - (25.79 × % NDF) ( = 0.90) or DE = 4,189 + (56.78 × % EE) - (30.59 × % NDF) ( = 0.85) and ME = -2,968 + (1.47 × GE) - (24.82 × % NDF) ( = 0.85) or ME = 3,931 + (53.77 × % EE) - (29.31 × % NDF) ( = 0.82), respectively. In Exp. 2, there were significant differences in the AID and SID of CP and all AA with the exception of Phe ( < 0.05). The AID and SID of CP averaged 70.16 and 78.04%, respectively. For the indispensable AA, the AID and SID of Thr were the least, with average values of 70.70 and 76.68%, respectively. The digestibility of Arg and Met were the greatest, averaging over 88 and 91% for AID and SID, respectively. The AID and SID of Lys ranged from 66.10 to 81.82% (mean = 74.14%) and from 70.90 to 85.41% (mean = 78.13%), respectively. These results indicate that there is significant variability in chemical composition, energy content, and the SID and AID of CP and AA among the selected flaxseed expellers. The DE and ME of flaxseed expellers are primarily related to their EE and NDF concentrations.
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Weng HZ, Huang YZ, Xiao JL, Yang YD, Ma XW, Wang FL, Du Y. Multicoherence wavelength generation based on integrated twin-microdisk lasers. Opt Lett 2016; 41:5146-5149. [PMID: 27842079 DOI: 10.1364/ol.41.005146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An effective method for multicoherence wavelength generation is experimentally demonstrated using an integrated twin-microdisk laser as a seeding source. Dual-wavelength lasing with variable wavelength spacing is achieved by adjusting injection currents independently. Using the integrated laser as a pump seed, we obtain multicoherence wavelength in a nonlinear optical fiber, which has a tunable frequency interval from 50 to 300 GHz. Ten waves with optical signal to noise ratio from 28 to 10 dB are produced at the frequency interval of 200 GHz and a pulse width of 1.2 ps. The high extinction ratio of the pulse trace indicates the high coherence in the mode-locked multiwavelength light source.
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Yang XF, Zhang YF, Zhao CF, Liu MM, Si JP, Fang YF, Xing WW, Wang FL. Relationship between TBX20 gene polymorphism and congenital heart disease. Genet Mol Res 2016; 15:gmr7374. [PMID: 27323105 DOI: 10.4238/gmr.15027374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Congenital heart disease in children is a type of birth defect. Previous studies have suggested that the transcription factor, TBX20, is involved in the occurrence and development of congenital heart disease in children; however, the specific regulatory mechanisms are yet to be evaluated. Hence, this study aimed to evaluate the relationship between the TBX20 polymorphism and the occurrence and development of congenital heart disease. The TBX20 gene sequence was obtained from the NCBI database and the polymorphic locus candidate was predicted. Thereafter, the specific gene primers were designed for the restriction fragment length polymorphism-polymerase chain reaction (RFLP-PCR) of DNA extracted from the blood of 80 patients with congenital heart disease and 80 controls. The results of the PCR were subjected to correlation analysis to identify the differences between the amplicons and to determine the relationship between the TBX20 gene polymorphism and congenital heart disease. One of the single nucleotide polymorphic locus was found to be rs3999950: c.774T>C (Ala265Ala). The TC genotype frequency in the patients was higher than that in the controls, similar to that for the C locus. The odds ratio of the TC genotypes was above 1, indicating that the presence of the TC genotype increases the incidence of congenital heart diseases. Thus, rs3999950 may be associated with congenital heart disease, and TBX20 may predispose children to the defect.
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Affiliation(s)
- X F Yang
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, Shandong, China.,Department of Pediatrics, Yidu Central Hospital of Weifang City, Qingzhou, Shandong, China
| | - Y F Zhang
- Department of Pediatrics, Yidu Central Hospital of Weifang City, Qingzhou, Shandong, China
| | - C F Zhao
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - M M Liu
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - J P Si
- Department of Pediatrics, People's Hospital of GuangRao, Dongying, Shandong, China
| | - Y F Fang
- Department of Pediatrics, Yidu Central Hospital of Weifang City, Qingzhou, Shandong, China
| | - W W Xing
- Department of Pediatrics, Yidu Central Hospital of Weifang City, Qingzhou, Shandong, China
| | - F L Wang
- Department of Pediatrics, Yidu Central Hospital of Weifang City, Qingzhou, Shandong, China
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Wang FL, Ji HM, Zhu JY, Xu GJ, Guan YZ, Chen YJ. Penetration Enhancement Effect of Turpentine Oil on Transdermal Film of Ketorolac. TROP J PHARM RES 2015. [DOI: 10.4314/tjpr.v14i8.4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Zheng WX, Yan F, Xue Q, Wu GJ, Qin WJ, Wang FL, Qin J, Tian CJ, Yuan JL. Heme oxygenase-1 is a predictive biomarker for therapeutic targeting of advanced clear cell renal cell carcinoma treated with sorafenib or sunitinib. Onco Targets Ther 2015; 8:2081-8. [PMID: 26309414 PMCID: PMC4539079 DOI: 10.2147/ott.s86222] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background We analyzed the expression of heme oxygenase-1 (HO-1) in patients undergoing radical nephrectomy for advanced clear cell renal cell carcinoma (CC-RCC) and evaluated the effects of the targeted therapies treated with sorafenib and sunitinib. Methods Expression of HO-1 in cancer tissue from 66 patients was measured by immunohis-tochemical staining. The patients received either oral sorafenib (n=40) or oral sunitinib (n=26) within 4 weeks after nephrectomy and were followed up long term to determine the tumor response and prognosis. Results Our current study revealed a high HO-1 expression level in 57.6% (38/66) of patients and a low HO-1 expression level in 42.4% (28/66) of patients with CC-RCC. The study also revealed that patients with high HO-1 expression did not have a higher objective response rate (2.6% versus 53.6%, P<0.01), clinical benefit rate (47.4% versus 92.9%, P<0.01), longer progression-free survival (4.4 versus 42 months, P=0.022), or overall survival (χ2=4.775, P=0.029) than patients with low HO-1 expression. In the low HO-1 level group, a higher tumor response rate and a longer survival time was achieved in patients who received sorafenib or sunitinib. Multivariate analysis showed that HO-1 expression was an independent prognostic factor for tumor response and overall survival. Conclusion High expression of HO-1 was associated with a lower tumor response rate and a shorter overall survival time when compared with low expression of HO-1. Overall, HO-1 expression might be a useful biomarker for predicting the response to sunitinib and sorafenib for patients with metastatic CC-RCC.
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Affiliation(s)
- Wan-Xiang Zheng
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Fei Yan
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Qin Xue
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Guo-Jun Wu
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Wei-Jun Qin
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Fu-Li Wang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Jun Qin
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Chun-Juan Tian
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
| | - Jian-Lin Yuan
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, People's Republic of China
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Yuan ST, Wang FL, Liu N, Liu YH, Liu SG, Huang Y, Li YQ, Liu XB, Zhang Y, Li WH, Yu J, Zhang JD. Concurrent involved-field radiotherapy and XELOX versus XELOX chemotherapy alone in gastric cancer patients with postoperative locoregional recurrence. Am J Clin Oncol 2015; 38:130-4. [PMID: 23608834 DOI: 10.1097/coc.0b013e31828f5cb6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE To compare the treatment outcomes of concurrent involved-field radiotherapy and XELOX (oxaliplatin and capecitabine) versus XELOX chemotherapy alone in gastric adenocarcinoma patients with locoregional recurrence. MATERIALS AND METHODS From 2004 to 2008, 79 patients with recurrent locoregional gastric cancer after curative resection of gastric tumor were enrolled. Among them, 41 patients received involved-field radiotherapy (median dose 50 Gy) by a 3-dimensional conformal radiotherapy technique and concurrent XELOX chemotherapy, and 38 patients were treated with XELOX chemotherapy alone (oxaliplatin 130 mg/m, capecitabine 1000 mg/m, twice daily, 3 wk each cycle). RESULTS The concurrent radiochemotherapy group showed better overall response (including complete response and partial response) when compared with the chemotherapy group (87.8% vs. 63.0%, P=0.01). The control rates for pain, bleeding, and dysphagia/obstruction were 89.5% (17/19), 81.8% (9/11), and 80% (8/10), respectively, in the radiochemotherapy group and 58.8% (10/17), 50% (5/10), and 57.1% (4/7), respectively, in the chemotherapy group. The concurrent radiochemotherapy group showed better overall symptom-control rate when compared with the chemotherapy group (55.9% vs. 85%, P=0.006). Patients receiving concurrent radiochemotherapy trended toward a better median overall survival when compared with those receiving chemotherapy alone (13.4 vs. 5.4 mo, P=0.06). In addition, there were no significant differences in the rates of toxicity or adverse reactions between the 2 groups. CONCLUSIONS Concurrent involved-field radiotherapy and XELOX showed better responses and overall symptom-control rates compared with XELOX chemotherapy alone in gastric cancer patients with postoperative locoregional recurrence. A trend of survival benefit from radiochemotherapy was also observed but needs to be further explored.
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Affiliation(s)
- Shuanghu Tiger Yuan
- Departments of *Radiation Oncology ‡Radiology §Surgery, Shandong Cancer Hospital and Institute †Department of Radiation Oncology, Shandong University Qianfoshan Hospital, Jinan, P.R. China
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Abstract
We examined the relationship between type 2 diabetes and skin wound healing. GSE38396 was downloaded from the Gene Expression Omnibus database and preprocessed using the RMA function of the Affy package. Differentially expressed genes (DEGs) were identified using the limma package, then DAVID was applied to per-form Gene Ontology functional annotation and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis. MicroRNAs and their target genes were screened from the miRecords database and subjected to functional analysis. Finally, the STRING online database was applied to identify the protein-protein interaction relationships, and a combined score > 0.5 was considered to indicate an interaction. A total of 421 DEGs (208 upregulated and 213 downregulated genes) were identified in the skin lymphatic endothelial cells of patients with type II diabetes. Twenty-four microRNAs and 34 target genes were screened, including those involved in cell migration, regulation of cell proliferation, cell death, and cell adhesion regulation, among others. Protein-protein interaction network clustering analysis identified a module composed of 25 genes, and INTERPRO protein domain enrichment analysis showed that the protein domain of the clustering module main-ly contained the insulin-like growth factor binding proteins IGFBP3 and CYR61. IGFBP3 and CYR61 may play important roles in skin wound healing in diabetes patients. This information may be useful for developing methods to treat skin refractory wounds in type II diabetes.
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Affiliation(s)
- K Ge
- Department of Emergency, Shanghai 9th People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - J J Wu
- Department of Emergency, Shanghai 9th People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Qian
- Department of Emergency, Shanghai 9th People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M J Wu
- Department of Wound Healing, Shanghai 9th People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - F L Wang
- Department of Emergency, Shanghai 9th People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - B Xu
- Department of Emergency, Shanghai 9th People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - T Xie
- Department of Wound Healing, Shanghai 9th People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Yuan JL, Wang FL, Yi XM, Qin WJ, Wu GJ, Huan Y, Yang LJ, Zhang G, Yu L, Zhang YT, Qin RL, Tian CJ. More than 10 years survival with sequential therapy in a patient with advanced renal cell carcinoma: a case report. Braz J Med Biol Res 2014; 48:34-38. [PMID: 25493380 PMCID: PMC4288490 DOI: 10.1590/1414-431x20144096] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Accepted: 09/22/2014] [Indexed: 12/04/2022] Open
Abstract
Although radical nephrectomy alone is widely accepted as the standard of care in
localized treatment for renal cell carcinoma (RCC), it is not sufficient for the
treatment of metastatic RCC (mRCC), which invariably leads to an unfavorable outcome
despite the use of multiple therapies. Currently, sequential targeted agents are
recommended for the management of mRCC, but the optimal drug sequence is still
debated. This case was a 57-year-old man with clear-cell mRCC who received multiple
therapies following his first operation in 2003 and has survived for over 10 years
with a satisfactory quality of life. The treatments given included several surgeries,
immunotherapy, and sequentially administered sorafenib, sunitinib, and everolimus
regimens. In the course of mRCC treatment, well-planned surgeries, effective
sequential targeted therapies and close follow-up are all of great importance for
optimal management and a satisfactory outcome.
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Affiliation(s)
- J L Yuan
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - F L Wang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - X M Yi
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - W J Qin
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - G J Wu
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Y Huan
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - L J Yang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - G Zhang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - L Yu
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Y T Zhang
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - R L Qin
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - C J Tian
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
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