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Huang KY, Upadhyay G, Ahn Y, Sakakura M, Pagan-Diaz GJ, Cho Y, Weiss AC, Huang C, Mitchell JW, Li J, Tan Y, Deng YH, Ellis-Mohr A, Dou Z, Zhang X, Kang S, Chen Q, Sweedler JV, Im SG, Bashir R, Chung HJ, Popescu G, Gillette MU, Gazzola M, Kong H. Neuronal innervation regulates the secretion of neurotrophic myokines and exosomes from skeletal muscle. Proc Natl Acad Sci U S A 2024; 121:e2313590121. [PMID: 38683978 PMCID: PMC11087749 DOI: 10.1073/pnas.2313590121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 03/06/2024] [Indexed: 05/02/2024] Open
Abstract
Myokines and exosomes, originating from skeletal muscle, are shown to play a significant role in maintaining brain homeostasis. While exercise has been reported to promote muscle secretion, little is known about the effects of neuronal innervation and activity on the yield and molecular composition of biologically active molecules from muscle. As neuromuscular diseases and disabilities associated with denervation impact muscle metabolism, we hypothesize that neuronal innervation and firing may play a pivotal role in regulating secretion activities of skeletal muscles. We examined this hypothesis using an engineered neuromuscular tissue model consisting of skeletal muscles innervated by motor neurons. The innervated muscles displayed elevated expression of mRNAs encoding neurotrophic myokines, such as interleukin-6, brain-derived neurotrophic factor, and FDNC5, as well as the mRNA of peroxisome-proliferator-activated receptor γ coactivator 1α, a key regulator of muscle metabolism. Upon glutamate stimulation, the innervated muscles secreted higher levels of irisin and exosomes containing more diverse neurotrophic microRNAs than neuron-free muscles. Consequently, biological factors secreted by innervated muscles enhanced branching, axonal transport, and, ultimately, spontaneous network activities of primary hippocampal neurons in vitro. Overall, these results reveal the importance of neuronal innervation in modulating muscle-derived factors that promote neuronal function and suggest that the engineered neuromuscular tissue model holds significant promise as a platform for producing neurotrophic molecules.
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Affiliation(s)
- Kai-Yu Huang
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Gaurav Upadhyay
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Yujin Ahn
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
- Chan Zuckerberg Biohub Chicago, Chicago, IL60642
| | - Masayoshoi Sakakura
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Gelson J. Pagan-Diaz
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Younghak Cho
- Department of Chemical and Biomolecular Engineering and KI for the Nano Century, Korea Advanced Institute of Science and Technology, Daejeon305-701, Republic of Korea
| | - Amanda C. Weiss
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Chen Huang
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Jennifer W. Mitchell
- Department of Cell and Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Jiahui Li
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Yanqi Tan
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Yu-Heng Deng
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Austin Ellis-Mohr
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Zhi Dou
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Xiaotain Zhang
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Sehong Kang
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Qian Chen
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Jonathan V. Sweedler
- Chan Zuckerberg Biohub Chicago, Chicago, IL60642
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Sung Gap Im
- Department of Chemical and Biomolecular Engineering and KI for the Nano Century, Korea Advanced Institute of Science and Technology, Daejeon305-701, Republic of Korea
| | - Rashid Bashir
- Chan Zuckerberg Biohub Chicago, Chicago, IL60642
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Hee Jung Chung
- Department of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Gabriel Popescu
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Martha U. Gillette
- Chan Zuckerberg Biohub Chicago, Chicago, IL60642
- Department of Cell and Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, IL61801
| | - Mattia Gazzola
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL61801
- Chan Zuckerberg Biohub Chicago, Chicago, IL60642
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801
- Korea University-Korea Institute of Science and Technology Graduate School of Converging Science and Technology, Korea University, Seoul02841, Republic of Korea
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Wu ZH, Cheng Y, Hu HB, Zhang JW, Deng YH. [Neoadjuvant strategy for locally advanced colorectal cancer based organ preservation]. Zhonghua Wei Chang Wai Ke Za Zhi 2024; 27:416-423. [PMID: 38644248 DOI: 10.3760/cma.j.cn441530-20231231-00235] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Neoadjuvant therapy for locally advanced colorectal cancer has made great progress in the past 20 years, but there are still limitations such as side effects, organ dysfunction and unsatisfactory control of metastasis. In recent years, with the improvement of surgical techniques and further development of molecular research, how to further improve local control, reduce distant metastasis, and even avoid surgery according to clinical remission to achieve organ preservation, is the current demand and research goal. With the advancement of molecular research, colorectal cancer has different treatment strategies based on microsatellite status. For patients with microsatellite instability locally advanced colorectal cancer, immune checkpoint inhibitor therapy significantly increased the pathologic complete response rate, reduced the incidence of adverse events and improved organ function compared with conventional chemoradiotherapy. For patients with microsatellite stable locally advanced colon cancer, neoadjuvant therapy is still in the exploratory stage. The standard of care is surgery combined with perioperative chemotherapy. For microsatellite stable locally advanced rectal cancer, the complete response rate is improved by enhancing neoadjuvant therapy, which helps to preserve organs. On the other hand, selective radiotherapy preserves organ function and improves quality of life. This article reviews the neoadjuvant treatment strategies for locally advanced colorectal cancer based on organ-sparing strategies.
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Affiliation(s)
- Z H Wu
- Department of Oncology, the Sixth Affiliated Hospital of Sun Yat-sen University, Biomedical Innovation Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - Y Cheng
- Department of Oncology, the Sixth Affiliated Hospital of Sun Yat-sen University, Biomedical Innovation Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - H B Hu
- Department of Oncology, the Sixth Affiliated Hospital of Sun Yat-sen University, Biomedical Innovation Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - J W Zhang
- Department of Oncology, the Sixth Affiliated Hospital of Sun Yat-sen University, Biomedical Innovation Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - Y H Deng
- Department of Oncology, the Sixth Affiliated Hospital of Sun Yat-sen University, Biomedical Innovation Center, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
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Xue WL, Li GQ, Chen H, Han YC, Feng L, Wang L, Gu XL, Hu SY, Deng YH, Tan L, Dove MT, Li W, Zhang J, Dong H, Chen Z, Deng WH, Xu G, Wang G, Wan CQ. Melt-quenched glass formation of a family of metal-carboxylate frameworks. Nat Commun 2024; 15:2040. [PMID: 38448429 PMCID: PMC10917788 DOI: 10.1038/s41467-024-46311-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 02/15/2024] [Indexed: 03/08/2024] Open
Abstract
Metal-organic framework (MOF) glasses are an emerging class of glasses which complement traditional inorganic, organic and metallic counterparts due to their hybrid nature. Although a few zeolitic imidazolate frameworks have been made into glasses, how to melt and quench the largest subclass of MOFs, metal carboxylate frameworks, into glasses remains challenging. Here, we develop a strategy by grafting the zwitterions on the carboxylate ligands and incorporating organic acids in the framework channels to enable the glass formation. The charge delocalization of zwitterion-acid subsystem and the densely filled channels facilitate the coordination bonding mismatch and thus reduce the melting temperature. Following melt-quenching realizes the glass formation of a family of carboxylate MOFs (UiO-67, UiO-68 and DUT-5), which are usually believed to be un-meltable. Our work opens up an avenue for melt-quenching porous molecular solids into glasses.
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Affiliation(s)
- Wen-Long Xue
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048, Beijing, China
- Anorganische Chemie, Fakultät für Chemie & Chemische Biologie, Technische Universität Dortmund, Otto-Hahn Straße 6, Dortmund, 44227, Germany
| | - Guo-Qiang Li
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048, Beijing, China
| | - Hui Chen
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048, Beijing, China
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Yu-Chen Han
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048, Beijing, China
| | - Li Feng
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048, Beijing, China
| | - Lu Wang
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048, Beijing, China
| | - Xiao-Ling Gu
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048, Beijing, China
| | - Si-Yuan Hu
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048, Beijing, China
| | - Yu-Heng Deng
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048, Beijing, China
| | - Lei Tan
- Department of Physics, School of Sciences, Wuhan University of Technology, Wuhan, 430070, Hubei, China
| | - Martin T Dove
- College of Computer Science, Sichuan University, Chengdu, 610065, Sichuan, China
| | - Wei Li
- School of Materials Science and Engineering & Tianjin Key Laboratory of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin, 300350, China.
| | - Jiangwei Zhang
- College of Energy Material and Chemistry, Inner Mongolia University, Hohhot, 010021, China.
| | - Hongliang Dong
- Center for High Pressure Science and Technology Advanced Research, Pudong, Shanghai, 201203, China
| | - Zhiqiang Chen
- Center for High Pressure Science and Technology Advanced Research, Pudong, Shanghai, 201203, China
| | - Wei-Hua Deng
- State Key Laboratory of Structural Chemistry, and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
| | - Gang Xu
- State Key Laboratory of Structural Chemistry, and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.
| | - Guo Wang
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048, Beijing, China
| | - Chong-Qing Wan
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, 100048, Beijing, China.
- State Key Laboratory of Structural Chemistry, and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China.
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, 100084, Beijing, China.
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Wang YX, Deng YH, Tan YL, Liu BH. [Predictive value of stress-induced hyperglycemia on 28 d risk of all-cause death in intensive care patients]. Beijing Da Xue Xue Bao Yi Xue Ban 2023; 55:442-449. [PMID: 37291919] [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: 06/10/2023]
Abstract
OBJECTIVE To investigate the relationship between stress glucose elevation and the risk of 28 d all-cause mortality in intensive care unit (ICU) patients, and to compare the predictive efficacy of different stress glucose elevation indicators. METHODS ICU patients who met the inclusion and exclusion criteria in the Medical Information Mart for Intensive Care Ⅳ (MIMIC-Ⅳ) database were used as the study subjects, and the stress glucose elevation indicators were divided into Q1 (0-25%), Q2 (>25%- 75%), and Q3 (>75%-100%) groups, with whether death occurred in the ICU and the duration of treatment in the ICU as outcome variables, and demographic characteristics, laboratory indicators, and comorbidities as covariates, Cox regression and restricted cubic splines were used to explore the association between stress glucose elevation and the risk of 28 d all-cause death in ICU patients; and subject work characteristics [receiver operating characteristic (ROC) and the area under curve (AUC)] were used to evaluate the predictive efficacy of different stress glucose elevation indicators, The stress hyperglycemia indexes included: stress hyperglycemia ratio (SHR1, SHR2), glucose gap (GG); and the stress hyperglycemia index was further incorporated into the Oxford acute severity of illness score (OASIS) to investigate the predictive efficacy of the improved scores: the AUC was used to assess the score discrimination, and the larger the AUC indicated, the better score discrimination. The Brier score was used to evaluate the calibration of the score, and a smaller Brier score indicated a better calibration of the score. RESULTS A total of 5 249 ICU patients were included, of whom 7.56% occurred in ICU death. Cox regression analysis after adjusting for confounders showed that the HR (95%CI) for 28 d all-cause mortality in the ICU patients was 1.545 (1.077-2.217), 1.602 (1.142-2.249) and 1.442 (1.001-2.061) for the highest group Q3 compared with the lowest group Q1 for SHR1, SHR2 and GG, respectively, and The risk of death in the ICU patients increased progressively with increasing indicators of stressful blood glucose elevation (Ptrend < 0.05). Restricted cubic spline analysis showed a linear relationship between SHR and the 28 d all-cause mortality risk (P>0.05). the AUC of SHR2 and GG was significantly higher than that of SHR1: AUCSHR2=0.691 (95%CI: 0.661-0.720), AUCGG=0.685 (95%CI: 0.655-0.714), and AUCSHR1=0.680 (95%CI: 0.650-0.709), P < 0.05. The inclusion of SHR2 in the OASIS scores significantly improved the discrimination and calibration of the scores: AUCOASIS=0.820 (95%CI: 0.791-0.848), AUCOASIS+SHR2=0.832 (95%CI: 0.804-0.859), P < 0.05; Brier scoreOASIS=0.071, Brier scoreOASIS+SHR2=0.069. CONCLUSION Stressful glucose elevation is strongly associated with 28 d all-cause mortality risk in ICU patients and may inform clinical management and decision making in intensive care patients.
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Affiliation(s)
- Y X Wang
- Department of Social Medicine and Health Education, Peking University School of Public Health, Beijing 100191, China
| | - Y H Deng
- Department of Social Medicine and Health Education, Peking University School of Public Health, Beijing 100191, China
| | - Y L Tan
- Department of Social Medicine and Health Education, Peking University School of Public Health, Beijing 100191, China
| | - B H Liu
- Department of Social Medicine and Health Education, Peking University School of Public Health, Beijing 100191, China
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Kim H, Lee EH, Lee SW, Deng YH, Kwon HB, Lim YJ, Kong H, Kim MJ. Antimicrobial efficacy of self-locomotive manganese oxide nanozyme-doped diatom microbubbler on orthodontic brackets in vitro. BMC Oral Health 2023; 23:33. [PMID: 36670429 PMCID: PMC9854181 DOI: 10.1186/s12903-023-02739-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 01/12/2023] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Orthodontic brackets provide a favorable environment for Streptococcus mutans biofilm formation, increasing the risk of white spots and dental caries. Manganese oxide (MnO2) nanozyme-doped diatom microbubbler (DM) is a recently developed material for biofilm removal. DM can generate oxygen by catalase-mimicking activity in Hydrogen peroxide (H2O2) solution and move with ejecting oxygen microbubbles to produce a mechanical self-cleansing effect. This study aimed to evaluate the feasibility of DM as a novel bracket cleaner. METHODS DM was prepared according to the protocol and analyzed using a scanning electron microscope (SEM). We treated S. mutans biofilms grown over bracket with phosphate-buffered saline (PBS group), 0.12% chlorhexidine (CHX group), 3% H2O2 (H2O2 group), and co-treatment with 3 mg/mL of DM and 3% H2O2 (DM group). The biofilm removal effect was analyzed using crystal violet assay, and the results were observed using SEM. The viability of S. mutans in remaining biofilms was evaluated using confocal laser scanning microscopy (CLSM). Finally, we examined the effect of all materials on mature multispecies biofilms formed on debonded brackets. RESULTS Crystal violet assay results revealed that the CHX group removed more biofilms than the control group, and the DM group removed biofilms more effectively than the CHX group (p < 0.0001). SEM and CLSM images showed that CHX killed S. mutans but failed to remove most biofilms on brackets. However, DM effectively removed biofilms and mature multispecies biofilms on debonded brackets (p < 0.0001). CONCLUSIONS Co-treatment with DM and H2O2 is effective in removing biofilms on orthodontic brackets compared to conventional antibacterial agents.
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Affiliation(s)
- Hyunsub Kim
- grid.31501.360000 0004 0470 5905Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Eun-Hyuk Lee
- grid.31501.360000 0004 0470 5905Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Sang-woo Lee
- grid.31501.360000 0004 0470 5905Department of Physiology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Yu-Heng Deng
- grid.185648.60000 0001 2175 0319Department of Chemical and Biomolecular Engineering, Carle Illinois College of Medicine, Urbana, IL 61801 USA
| | - Ho-Beom Kwon
- grid.31501.360000 0004 0470 5905Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Young-Jun Lim
- grid.31501.360000 0004 0470 5905Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
| | - Hyunjoon Kong
- grid.185648.60000 0001 2175 0319Department of Chemical and Biomolecular Engineering, Carle Illinois College of Medicine, Urbana, IL 61801 USA ,grid.35403.310000 0004 1936 9991Department of Bioengineering, Beckman Institute, Carle Illinois College of Medicine, Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA
| | - Myung-Joo Kim
- grid.31501.360000 0004 0470 5905Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, 03080 Republic of Korea
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Lee EH, Jeon YH, An SJ, Deng YH, Kwon HB, Lim YJ, Kong H, Kim MJ. Removal effect of Candida albicans biofilms from the PMMA resin surface by using a manganese oxide nanozyme-doped diatom microbubbler. Heliyon 2022; 8:e12290. [PMID: 36593839 PMCID: PMC9803711 DOI: 10.1016/j.heliyon.2022.e12290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/16/2022] [Accepted: 12/05/2022] [Indexed: 12/24/2022] Open
Abstract
To prevent oral candidiasis, removal of the Candida biofilms from dentures is important. However, common denture cleaners are insufficiently effective in removing biofilms. A manganese oxide (MnO2) nanozyme-doped diatom microbubbler (DM) can generate oxygen gas microbubbles by a catalase-mimicking activity in hydrogen peroxide (H2O2). DM can invade and destroy biofilms with the driving force of continuously generated microbubbles. In this study, the Candida biofilm removal efficiency by co-treatment of DM and H2O2 was investigated. Diatom particles were reacted with (3-aminopropyl)triethoxysilane to prepare amine-substituted diatom particles. These particles were reacted with potassium permanganate to fabricate DMs. The morphology and components of DM were analyzed by using a scanning electron microscope (SEM). Four types of denture base resin specimens on which biofilms of Candida albicans were formed were treated with phosphate-buffered saline (PBS group), Polident 5-Minute (Polident group), 0.12% chlorhexidine gluconate (CHX group), 3% H2O2 (H2O2 group), and co-treatment of 3 mg/mL of DM and 3% H2O2 (DM group). The biofilm removal effect of each group was quantitatively analyzed by crystal violet assay, and the results were visually confirmed by SEM images. After each treatment, the remaining C. albicans were stained with Hoechst 33342/propidium iodide, and observed with confocal laser scanning microscopy (CLSM) to evaluate the viability. MnO2 nanozyme sheets were successfully doped on the surface of the fabricated DM. Although biofilms were not effectively removed in the Polident and CHX groups, CLSM images showed that CHX was able to effectively kill C. albicans in the biofilms on all resin specimen types. According to the crystal violet analysis, the H2O2 groups removed the biofilms on heat-activated and 3D-printed resins (P < .01), but could not remove the biofilms on autopolymerizing and milled resins significantly (P = .1161 and P = .1401, respectively). The DM groups significantly removed C. albicans from all resin specimen types (P < .01).
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Affiliation(s)
- Eun-Hyuk Lee
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Yun-Ho Jeon
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Sun-Jin An
- Department of Oral Microbiology and Immunology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Yu-Heng Deng
- Department of Chemical and Biomolecular Engineering, Carle Illinois College of Medicine, Department of Pathobiology, Carl R. Woese Institute for Genomic Biology, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States
| | - Ho-Beom Kwon
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Young-Jun Lim
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, Carle Illinois College of Medicine, Department of Pathobiology, Carl R. Woese Institute for Genomic Biology, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States
| | - Myung-Joo Kim
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul, Republic of Korea,Corresponding author.
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Deng YH, Ricciardulli T, Won J, Wade MA, Rogers SA, Boppart SA, Flaherty DW, Kong H. Self-locomotive, antimicrobial microrobot (SLAM) swarm for enhanced biofilm elimination. Biomaterials 2022; 287:121610. [PMID: 35696784 PMCID: PMC9763052 DOI: 10.1016/j.biomaterials.2022.121610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 05/29/2022] [Indexed: 12/20/2022]
Abstract
Biofilm is a major cause of infections and infrastructure deterioration, largely due to molecular diffusion restrictions that hamper the antimicrobial activity of traditional antibiotics and disinfectants. Here, we present a self-locomotive, antimicrobial microrobot (SLAM) swarm that can penetrate, fracture, and detach biofilm and, in turn, nullify bacterial resistance to antibiotics. The SLAM is assembled by loading a controlled mass of manganese oxide nanosheets on diatoms with the polydopamine binder. In hydrogen peroxide solution, SLAMs produce oxygen bubbles that generate thrust to penetrate the rigid and dense Pseudomonas aeruginosa biofilm and self-assemble into a swarm that repeatedly surrounds, expands, and bursts oxygen bubbles. The resulting cavities continue to deform and fracture extracellular polymeric substances from microgrooved silicone substrates and wounded skin explants while decreasing the number of viable bacterial cells. Additionally, SLAM allows irrigating water or antibiotics to access the residual biofilm better, thus enhancing the synergistic efficacy in killing up to 99.9% of bacterial cells.
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Affiliation(s)
- Yu-Heng Deng
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana- Champaign, Urbana, IL, 61801, USA
| | - Tomas Ricciardulli
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana- Champaign, Urbana, IL, 61801, USA
| | - Jungeun Won
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Matthew A Wade
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana- Champaign, Urbana, IL, 61801, USA
| | - Simon A Rogers
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana- Champaign, Urbana, IL, 61801, USA
| | - Stephen A Boppart
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - David W Flaherty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana- Champaign, Urbana, IL, 61801, USA
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana- Champaign, Urbana, IL, 61801, USA; Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; KU-KIST Graduate School of Converging Science and Technology, Korea University, Seongbuk-gu, Seoul, 02841, South Korea.
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Lee EH, Lee SW, Seo Y, Deng YH, Lim YJ, Kwon HB, Park K, Kong H, Kim MJ. Manganese Oxide Nanozyme-Doped Diatom for Safe and Efficient Treatment of Peri-Implantitis. ACS Appl Mater Interfaces 2022; 14:27634-27650. [PMID: 35638645 DOI: 10.1021/acsami.2c05166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Peri-implantitis is a major cause of dental implant failure. Bacterial biofilm contamination on the implant induces surrounding bone resorption and soft tissue inflammation, leading to severe deterioration of oral health. However, conventional biofilm removal procedures, such as mechanical decontamination and antiseptic application, are not effective enough to induce reosseointegration on decontaminated implant surfaces. This is due to (1) incomplete decontamination of the biofilm from inaccessible areas and (2) physicochemical alteration of implant surfaces caused by decontamination procedures. Herein, a safe and effective therapeutic approach for peri-implantitis is developed, which involves decontamination of implant-bound biofilms using the kinetic energy of microsized oxygen bubbles generated from the catalytic reaction between hydrogen peroxide (H2O2) and manganese oxide (MnO2) nanozyme sheet-doped silica diatom microparticles (Diatom Microbubbler, DM). Rapidly moving microsized DM particles are able to penetrate narrow spaces between implant screws, exerting just the right amount of force to entirely destroy biofilms without harming the surrounding mucosa or implant surfaces, as opposed to conventional antiseptics such as chlorhexidine or 3% H2O2 when used alone. Consequently, decontamination with DM facilitates successful reosseointegration on the peri-implantitis-affected implant surface. In summary, our new DM-based therapeutic approach will become a promising alternative to resolve clinically challenging aspects of peri-implantitis.
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Affiliation(s)
- Eun-Hyuk Lee
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 110-749, South Korea
| | - Sang-Woo Lee
- Department of Physiology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 110-749, South Korea
| | - Yongbeom Seo
- Department of Chemical and Biomolecular Engineering, Carle Illinois College of Medicine, Department of Pathobiology, Carl R. Woese Institute for Genomic Biology, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Yu-Heng Deng
- Department of Chemical and Biomolecular Engineering, Carle Illinois College of Medicine, Department of Pathobiology, Carl R. Woese Institute for Genomic Biology, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Young-Jun Lim
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 110-749, South Korea
| | - Ho-Beom Kwon
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 110-749, South Korea
| | - Kyungpyo Park
- Department of Physiology, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 110-749, South Korea
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, Carle Illinois College of Medicine, Department of Pathobiology, Carl R. Woese Institute for Genomic Biology, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Myung-Joo Kim
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, Seoul 110-749, South Korea
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9
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Feng L, Li GQ, Li YK, Gu XL, Hu SY, Han YC, Wang YF, Zheng JC, Deng YH, Wan CQ. MOF-supported crystalline ionic liquid: new type of solid electrolyte for enhanced and high ionic conductivity. Dalton Trans 2022; 51:6086-6094. [PMID: 35357387 DOI: 10.1039/d2dt00526c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solid-state electrolyte (SSE) is crucial for a high-performance all-solid-state battery. Here, a new solid sodium electrolyte based on the ionic liquid EIMS-NaTFSI and one metal-organic framework (MOF) UiO-67-MIMS functionalized with zwitterion groups MIMS was obtained (UiO-67 and was assembled with 4,4'-biphenyldicarboxylate linker and cluster Zr6O4(OH)4) (EIMS = 1-(1-ethyl-3-imidazolio)propane-3-sulfonate, NaTFSI = sodium bis(trifluoromethanesulfonyl)imide, MIMS = 1-(1-mthyl-3-imidazolio)propane-3-sulfonate). By contacting and pairing EIMS-NaTFSI (abbreviated as EN-1) to the MIMS group on the framework, EN-1 was directed and arranged along the channels within UiO-67-MIMS, forming a solid composite EN-1@UiO-67-MIMS with Bragg scatter, i.e., a crystalline ionic liquid containing Na+ salts (NaTFSI). Such an ionic liquid EN-1@UiO-67-MIMS bearing crystalline MOF matrix showed and preserved fast ion conduction (1.02 × 10-2 S cm-1) at 150 °C even after 30 days, and exhibited 1-2 orders of magnitude higher conductivities than the bulk ionic liquid EN-1 within a wide temperature range, although the ion content in the latter was higher. The infinite pathway paved by the EN-1 arranged and contacted the MIMS along the channels within MOF well accounts for the fast ion transmission and the stability of the solid-state electrolyte. Such MOF-based crystalline ionic liquid provides a new strategy for developing high-performance solid-state electrolytes for ions.
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Affiliation(s)
- Li Feng
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Guo-Qiang Li
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Yu-Kun Li
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Xiao-Ling Gu
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Si-Yuan Hu
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Yu-Chen Han
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Yi-Fan Wang
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Ji-Ci Zheng
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Yu-Heng Deng
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Chong-Qing Wan
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China. .,Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
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10
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Zhang JW, Deng YH. [Neoadjuvant immunotherapy in microsatellite stability or mismatch repair proficient colorectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:193-198. [PMID: 35340167 DOI: 10.3760/cma.j.cn441530-20211217-00505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Immunotherapy has become an important treatment option for microsatellite instability-high (MSI-H) and mismatch repair deficient (dMMR) colorectal cancer. From late-line to first-line treatment, and even in neoadjuvant setting for early stage colorectal cancer, promising efficacy was observed with immunotherapy. In microsatellite stability (MSS) or mismatch repair proficient (pMMR) colorectal cancer, the researches of neoadjuvant immunotherapy have been conducted constantly. This paper focuses on the recent researches and progress of neoadjuvant immunotherapy for MSS or pMMR colorectal cancer. Neoadjuvant immunotherapy alone led to a good pathological response in a subset of patients. Studies of induction or consolidation immunotherapy before or after neoadjuvant chemoradiotherapy or concurrent immunotherapy during radiotherapy showed higher pathological complete remission (pCR) rates as compared to standard chemoradiotherapy. Studies on sequential dual immunotherapy after radiochemotherapy and targeted therapy combined with neoadjuvant immunotherapy are ongoing. At present, most of these are pilot studies with small sample size. More researches and long-term follow-up are needed to prove the efficacy of neoadjuvant immunotherapy in MSS or pMMR colorectal cancer.
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Affiliation(s)
- J W Zhang
- Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
| | - Y H Deng
- Department of Medical Oncology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou 510655, China
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11
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Wang YF, Sun J, Han YC, Feng L, Li GQ, Gao H, Gu XL, Hu SY, Deng YH, Wan CQ. Thiol‐functional MOF Bonded with Cubic CdS: A New Synthesis of Heterostructure with High Activity for Splitting Water Into H2 Under Visible Light Irradiation. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200017] [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: 11/11/2022]
Affiliation(s)
- Yi-Fan Wang
- Capital Normal University Department of Chemistry CHINA
| | - Jie Sun
- Shaanxi Normal University School of Materials Science and Engineering CHINA
| | - Yu-Chen Han
- Capital Normal University Department of Chemistry CHINA
| | - Li Feng
- Capital Normal University Department of Chemistry CHINA
| | - Guo-Qiang Li
- Capital Normal University Department of Chemistry CHINA
| | - Hui Gao
- Capital Normal University Department of Chemistry CHINA
| | - Xiao-Ling Gu
- Capital Normal University Department of Chemistry CHINA
| | - Si-Yuan Hu
- Capital Normal University Department of Chemistry CHINA
| | - Yu-Heng Deng
- Capital Normal University Department of Chemistry CHINA
| | - Chong-Qing Wan
- Capital Normal University Department of Chemistry No.105,Xisan Ring Road 100048 Beijing CHINA
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12
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Goswami N, He YR, Deng YH, Oh C, Sobh N, Valera E, Bashir R, Ismail N, Kong H, Nguyen TH, Best-Popescu C, Popescu G. Label-free SARS-CoV-2 detection and classification using phase imaging with computational specificity. Light Sci Appl 2021; 10:176. [PMID: 34465726 PMCID: PMC8408039 DOI: 10.1038/s41377-021-00620-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 08/03/2021] [Accepted: 08/18/2021] [Indexed: 05/22/2023]
Abstract
Efforts to mitigate the COVID-19 crisis revealed that fast, accurate, and scalable testing is crucial for curbing the current impact and that of future pandemics. We propose an optical method for directly imaging unlabeled viral particles and using deep learning for detection and classification. An ultrasensitive interferometric method was used to image four virus types with nanoscale optical path-length sensitivity. Pairing these data with fluorescence images for ground truth, we trained semantic segmentation models based on U-Net, a particular type of convolutional neural network. The trained network was applied to classify the viruses from the interferometric images only, containing simultaneously SARS-CoV-2, H1N1 (influenza-A virus), HAdV (adenovirus), and ZIKV (Zika virus). Remarkably, due to the nanoscale sensitivity in the input data, the neural network was able to identify SARS-CoV-2 vs. the other viruses with 96% accuracy. The inference time for each image is 60 ms, on a common graphic-processing unit. This approach of directly imaging unlabeled viral particles may provide an extremely fast test, of less than a minute per patient. As the imaging instrument operates on regular glass slides, we envision this method as potentially testing on patient breath condensates. The necessary high throughput can be achieved by translating concepts from digital pathology, where a microscope can scan hundreds of slides automatically.
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Affiliation(s)
- Neha Goswami
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA
- Beckman Institute of Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA
| | - Yuchen R He
- Beckman Institute of Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA
| | - Yu-Heng Deng
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Chamteut Oh
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Nahil Sobh
- Beckman Institute of Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA
- NCSA Center for Artificial Intelligence Innovation, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Enrique Valera
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA
- Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801, USA
- Biomedical Research Center, Carle Foundation Hospital, 509W University Ave., Urbana, Illinois, 61801, USA
| | - Rashid Bashir
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA
- Holonyak Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801, USA
- Biomedical Research Center, Carle Foundation Hospital, 509W University Ave., Urbana, Illinois, 61801, USA
- Carle Illinois College of Medicine, 807 South Wright St., Urbana, Illinois, 61801, USA
- Mayo-Illinois Alliance for Technology Based Healthcare, Urbana, Illinois, 61801, USA
| | - Nahed Ismail
- Department of Pathology, College of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Hyunjoon Kong
- Beckman Institute of Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Thanh H Nguyen
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Carle Illinois College of Medicine, 807 South Wright St., Urbana, Illinois, 61801, USA
| | - Catherine Best-Popescu
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA
- Beckman Institute of Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA
| | - Gabriel Popescu
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA.
- Beckman Institute of Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA.
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois, 61801, USA.
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13
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Baek AE, Krawczynska N, Das Gupta A, Dvoretskiy SV, You S, Park J, Deng YH, Sorrells JE, Smith BP, Ma L, Nelson AT, McDowell HB, Sprenger A, Henn MA, Madak-Erdogan Z, Kong H, Boppart SA, Boppart MD, Nelson ER. The Cholesterol Metabolite 27HC Increases Secretion of Extracellular Vesicles Which Promote Breast Cancer Progression. Endocrinology 2021; 162:6271123. [PMID: 33959755 PMCID: PMC8197285 DOI: 10.1210/endocr/bqab095] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Indexed: 12/19/2022]
Abstract
Cholesterol has been implicated in the clinical progression of breast cancer, a disease that continues to be the most commonly diagnosed cancer in women. Previous work has identified the cholesterol metabolite 27-hydroxycholesterol (27HC) as a major mediator of the effects of cholesterol on breast tumor growth and progression. 27HC can act as an estrogen receptor (ER) modulator to promote the growth of ERα+ tumors, and as a liver X receptor (LXR) ligand in myeloid immune cells to establish an immune-suppressive program. In fact, the metastatic properties of 27HC require the presence of myeloid cells with neutrophils (polymorphonuclear neutrophils; PMNs) being essential for the increase in lung metastasis in murine models. In an effort to further elucidate the mechanisms by which 27HC alters breast cancer progression, we made the striking finding that 27HC promoted the secretion of extracellular vesicles (EVs), a diverse assortment of membrane bound particles that includes exosomes. The resulting EVs had a size distribution that was skewed slightly larger than EVs generated by treating cells with vehicle. The increase in EV secretion and size was consistent across 3 different subtypes: primary murine PMNs, RAW264.7 monocytic cells, and 4T1 murine mammary cancer cells. Label-free analysis of 27HC-EVs indicated that they had a different metabolite composition to those from vehicle-treated cells. Importantly, 27HC-EVs from primary PMNs promoted tumor growth and metastasis in 2 different syngeneic models, demonstrating the potential role of 27HC-induced EVs in the progression of breast cancer. EVs from PMNs were taken up by cancer cells, macrophages, and PMNs, but not T cells. Since EVs did not alter proliferation of cancer cells, it is likely that their protumor effects are mediated through interactions with myeloid cells. Interestingly, RNA-seq analysis of tumors from 27HC-EV-treated mice do not display significantly altered transcriptomes, suggesting that the effects of 27HC-EVs occur early on in tumor establishment and growth. Future work will be required to elucidate the mechanisms by which 27HC increases EV secretion, and how these EVs promote breast cancer progression. Collectively, however, our data indicate that EV secretion and content can be regulated by a cholesterol metabolite, which may have detrimental effects in terms of disease progression, important findings given the prevalence of both breast cancer and hypercholesterolemia.
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Affiliation(s)
- Amy E Baek
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Current Affiliation: A. E. Baek’s current affiliation is of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Natalia Krawczynska
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Anasuya Das Gupta
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | | | - Sixian You
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- The Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Jaena Park
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- The Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Yu-Heng Deng
- Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Janet E Sorrells
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- The Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Brandi Patrice Smith
- Department of Food Science and Human Nutrition, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Liqian Ma
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Adam T Nelson
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Hannah B McDowell
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Ashabari Sprenger
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Madeline A Henn
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Zeynep Madak-Erdogan
- Department of Food Science and Human Nutrition, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States
- Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States
- Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Stephen A Boppart
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- The Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States
- University of Illinois Cancer Center, University of Illinois at Chicago, Chicago, IL 61801, USA
- Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Marni D Boppart
- Department of Kinesiology and Community Health, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- The Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
| | - Erik R Nelson
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Cancer Center at Illinois, University of Illinois Urbana-Champaign, Urbana, IL 61801, United States
- Division of Nutritional Sciences, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- University of Illinois Cancer Center, University of Illinois at Chicago, Chicago, IL 61801, USA
- Carl R. Woese Institute for Genomic Biology, Anticancer Discovery from Pets to People Theme, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
- Correspondence: Erik R. Nelson, University of Illinois at Urbana-Champaign, 407 S Goodwin Ave (MC-114), Urbana, IL 61801, USA. E-mail:
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14
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Li XH, Hao X, Deng YH, Liu XQ, Liu HY, Zhou FY, Fan R, Guo YB, Hou JL. [Application of aMAP score to assess the risk of hepatocarciongenesis in population of chronic liver disease in primary hospitals]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:332-337. [PMID: 33979959 DOI: 10.3760/cma.j.cn501113-20210329-00144] [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: The aMAP score is a hepatocellular carcinoma (HCC) risk prediction model based on an international cooperative cohort, which can be applied to various liver diseases. The aim of this study is to use the aMAP score to stratify the risk of HCC in patients with chronic liver disease (combined or non-combined metabolic diseases) admitted to People's Hospital of Yudu County, Ganzhou City, Jiangxi Province, in order to guide personalized HCC screening. Methods: The demographic information, laboratory test results (platelets, albumin, and total bilirubin) and combined disease information of patients with chronic liver disease who were admitted to People's Hospital of Yudu from January 2016 to December 2020 were collected, and the aMAP score was calculated to stratify HCC risk in this population. Results: A total of 3629 cases with chronic liver disease were included in the analysis, including 3 452 (95.1%) cases with hepatitis B virus (HBV) infection, 177 (4.9%) cases with fatty liver, and 22 (0.6%) cases with HBV infection and fatty liver. There were 2 679 (73.8%) male and the median age was 44 (35, 54). In the overall population, low, medium and high risk of HCC accounted for 52.6%, 29.0%, and 18.4% respectively. In the HBV-infected population, the proportion of high risk of HCC was significantly higher than that of fatty liver (18.9% vs. 9.6%, P = 0.001). The proportion of chronic liver disease patients with combined hypertension or diabetes was significantly higher than that of those with non-combined metabolic diseases (combined hypertension: 32.3% vs. 17.9%, P < 0.001; combined diabetes: 36.5% vs. 18.1%, P < 0.001). Moreover, the proportion of high-risk population with two metabolic diseases was significantly higher than that with one and no metabolic diseases (40.9% vs. 31.8% vs. 17.7%, P < 0.001). Conclusion: The aMAP score can be used as a simple tool for HCC screening and management of chronic liver disease in primary hospitals, and it is helpful to improve the personalized follow-up management system of chronic liver disease population. Chronic liver disease patients with metabolic diseases have a higher risk of HCC, and people with high risk of HCC should be given special priority in follow-up visits, so as to improve the rate of HCC early diagnosis and reduce the mortality rate.
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Affiliation(s)
- X H Li
- Department of Infectious Diseases, Health Screening Center, The People's Hospital of Yudu County, Gangzhou 342300, China
| | - X Hao
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Guangzhou 510515, China
| | - Y H Deng
- Department of Infectious Diseases, Health Screening Center, The People's Hospital of Yudu County, Gangzhou 342300, China
| | - X Q Liu
- Department of Infectious Diseases, Health Screening Center, The People's Hospital of Yudu County, Gangzhou 342300, China
| | - H Y Liu
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Guangzhou 510515, China
| | - F Y Zhou
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Guangzhou 510515, China
| | - R Fan
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Guangzhou 510515, China Shenzhen Hospital, Southern Medical University, Shenzhen 518110, China
| | - Y B Guo
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Guangzhou 510515, China
| | - J L Hou
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Guangzhou 510515, China Shenzhen Hospital, Southern Medical University, Shenzhen 518110, China
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15
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Chen TF, Wang LY, Wang YF, Gao H, He J, Wang G, Meng XF, Wu YS, Deng YH, Wan CQ. Facile Strategy for Efficient Charge Separation and High Photoactivity of Mixed-Linker MOFs. ACS Appl Mater Interfaces 2021; 13:20897-20905. [PMID: 33896173 DOI: 10.1021/acsami.1c04130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two new sets of UiO-Zr metal-organic framework (MOF) bearing mixed linkers BDC-(SCH3)2 and BDC-(SOCH3)2 that have different band gaps and edges were prepared through post oxidation and direct methods, namely, UiO-66-(SCH3)2-xh (x = 4, 9, 12 oxidation hours) and UiO-66-(SOCH3)x(SCH3)2-x (x = 0, 0.4, 0.6, 2), respectively. These composites with stoichiometric components were fully characterized via proton nuclear magnetic resonance (1H NMR) spectroscopy, powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), Fourier-transform infrared (FT-IR) spectra, Brunauer-Emmett-Teller (BET), photo electrochemical measurements, and femtosecond transient absorption (fs-TA) spectroscopy. The structure, electronic property, and photoresponsive and catalytic ability as the functions of the molar ratio of linkers and the synthetic protocol were first investigated. The mixed-linker UiO-66-(SCH3)2-xh and UiO-66-(SOCH3)x(SCH3)2-x exhibited improved performances as compared to the UiO-66-(SCH3)2 and UiO-66-(SOCH3)2 possessing neat linkers only. Their photo response and catalytic activity varied with different linker ratios. For UiO-66-(SCH3)2-xh, the performance increased with the increasing linker BDC-(SOCH3)2 ratio upon oxidation but reached the highest as the BDC-(SOCH3)2 being of 24.4% in UiO-66-(SCH3)2-9h. In comparison, the best photocurrent (80.74 uA/cm-2) and the highest H2 generation rate (2018.8 μmol g-1 h-1) (λ > 400 nm) in UiO-66-(SCH3)2-9h are about twice those of UiO-66-(SOCH3)0.4(SCH3)1.6 obtained by direct synthesis, although the linker BDC-(SOCH3)2 ratio of those two composites is almost the same (24.4% vs 23.9%). Recorded shorter lifetime and higher charge separation efficiency of the former than those of the latter suggest the postsynthetic protocol as the efficient method for achieving the mixed-liner-MOF-based photocatalyst with high performance. A new type-II tailored homojunction is proposed in these mixed-linker MOFs for their efficient charge separation and improved activity.
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Affiliation(s)
- Teng-Fei Chen
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Lin-Yang Wang
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yi-Fan Wang
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Hui Gao
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Jing He
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Guo Wang
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Xiang-Fu Meng
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yi-Shi Wu
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yu-Heng Deng
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Chong-Qing Wan
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, China
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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Ling JY, Li YY, Zhong LX, Li WW, Liu H, Cai Y, Hu HB, Zhang JW, Deng YH. [Effect of enterostomy on analgesic pattern in patients with advanced digestive tract cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:1159-1164. [PMID: 31874532 DOI: 10.3760/cma.j.issn.1671-0274.2019.12.011] [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 effect of enterostomy on analgesic pattern in advanced digestive tract cancer. Methods: A retrospective cohort study was carried out, which was approved by the Ethics Committee of the Sixth Affiliated Hospital of Sun Yat-sen University (E2018026). Inclusion criteria were as follows: (1)age and gender were not limited; (2) all the gastrointestinal malignancies were confirmed histologically, and local recurrence or metastasis were confirmed by CT or MR; (3) numerical rating scale (NRS) ≥4 points, opioid analgesic drugs were required; (4) informed consents were signed by patients of their own. Exclusion criteria were as follows: (1) malignancies of early stage; (2) suspicious adverse mental states which might lead to poor administration compliance; (3) hypersensitivity or allergic reactions to opioids. Clinical data of patients with advanced gastrointestinal cancer receiving comprehensive treatment at the Medical Oncology Department of the Sixth Affiliated Hospital of Sun Yat-sen University from September 2016 to April 2017 were retrospectively collected. The patients were divided into the stoma group and the non-stoma group. The clinical findings of two groups were analyzed, including age, sex, ostomy status, pain location, presence or absence of intestinal obstruction, pain characteristics, selection of opioid analgesic agents, treatment of side effects of analgesics. Pain was assessed using brief pain inventory(BPI) table and NRS score. Strong opioids were prescribed for patients of NRS ≥4. Patients who were intolerant to opioids required opioid titration. The titration drugs included oral or IV morphine and oxycodone. After achievement of adequate pain control, long-acting opioids were administered, which included sustained-release morphine tablets, controlled release oxycodone and transdermal fentanyl. Criteria for pain relief included NRS≤3, breakthrough pain <3 times/day and duration of adequate pain control >3 days. The χ(2) test and the Wilcoxon signed rank sum test (nonparametric test) were used to analyze the clinical features of patients in the stoma and non-stomach groups. In order to find the factors associated with maintenance therapy and the use of laxatives, the variables were compared as well as in multivariate analysis with multiple regression models. For all the statistical tests, a value of P<0.05 in a two-tailed test was established as the alpha significance level. Result: A total of 123 patients were enrolled in this study, including 79 males (64.2%) and 44 females (35.8%) with a median age of 51 years. Fifty-two patients were in stoma group, including 30 (24.4%) of ileostomy and 22 (17.9%) of colostomy, and 71 patients were in non-stoma group. Pain of 40 (76.9%) patients in stoma group located in abdomenopelvic site while the pain of 44 (62.0%) patients in non-stoma group located in other sites. Compared with non-stoma group, cases in stoma group complained more abdominopelvic pain (73% vs. 62.0%, P<0.001).The median NRS pain score before treatment in the stoma group and the non-stoma group was 5.7 and 5.6, respectively, without statistically significant difference (P=0.741). After analgesic management, the above scores reduced to 2.1 and 2.3, respectively, without statistically significant difference as well (P=0.092). Analgesic treatment was effective in 111 cases (90.2%), including 49 cases (94.2%) in the stoma group, and 62 cases (87.3%) in the non-stoma group, and there was no statistically significant difference between the two groups (P=0.202). There was more application of fentanyl transdermal patch [34.6%(18/52) vs. 9.8%(7/71)] in the stoma group, while more application of lactulose laxative [78.9%(56/71) vs. 61.5%(32/52)](χ(2)=10.023, P=0.002) in the non-stoma group. Multivariate analysis revealed that ostomy (OR=0.290, 95%CI: 0.102-0.824, P=0.009) and pain site (OR=5.691, 95%CI:1.709-18.948, P=0.005) were independent factors affecting the choice of the first line opioid sustained release agent. Of the 123 patients with maintaining analgesia, 98 had available data of laxative use, of whom 46 used laxatives to prevent or treat constipation, and the proportion of laxatives in stoma group (21.2%, 11/52) was significantly lower than that in non-stoma group (49.3%, 35/71) (χ(2)=6.957, P=0.008). Multivariate analysis of the application of laxative use showed that age (OR=0.281, 95% CI: 0.123-0.684, P=0.010) and ostomy (OR=2.621, 95% CI: 1.033-6.687, P=0.045) were independent factors affecting the use of lactulose laxatives. Conclusions: Enterostomy may affect the analgesic pattern in advanced digestive tract cancer. Patients with stoma are more likely to use fentanyl transdermal patches and younger patients with stoma do not need prophylactic use of laxatives.
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Affiliation(s)
- J Y Ling
- Department of Medical Oncology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, China
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Deng YH, Yang J, Chai YC, Zhu WD, Wu H, Wang ZY. [Clinical application of endoscope combined with microscope for the microvascular decompression in hemifacial spasm]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:267-271. [PMID: 30991776 DOI: 10.3760/cma.j.issn.1673-0860.2019.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the effectiveness and safety of the endoscope combined with microscope for the microvascular decompression in hemifacial spasm. Methods: A total of 26 patients underwent endoscope combined with microscopic facial nerve microvascular decompression through retrolabyrinthine approach from January 2013 to December 2016 were retrospectively reviewed in Ear Institute, Shanghai Jiaotong University School of Medicine. Among them, 9 were male and 17 were female, with a mean age of (51.9±11.4) years;15 cases of left side and 11 of right side patients were followed up for 1-3 years. The pre-and post-operative Cohen Classification was used for hemifacial spasm, House-Brackmann Grade for facial nerve function, hearing level and complication rates were reviewed. SPSS 19.0 software was used to analyze the data. Results: All 26 patients were operated successfully. No recurrence was seen during 1-3 year follow-up. Post-operative Cohen Grade were as follows: 25 cases with Cohen Grade I and 1 case with Cohen Grade II. The difference in Cohen grade between pre-and post-operative was statistically significant (Z=-4.87, P<0.01). Post-operative facial nerve function was satisfactory in all patients (House-Brackmann Grade I-II in all patients). No hearing loss was observed. No facial paralysis and other lower cranial nerve dysfunction were observed. No postoperative complications such as cerebrospinal fluid leakage occurred. Conclusions: Using an angled endoscope combined with microscope in microvascular decompression in hemifacial spasmis is safe and effective.
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Affiliation(s)
- Y H Deng
- Department of Otorhinolaryngology Head and Neck Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai 200011, China
| | - J Yang
- Department of Otorhinolaryngology Head and Neck Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai 200011, China
| | - Y C Chai
- Department of Otorhinolaryngology Head and Neck Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai 200011, China
| | - W D Zhu
- Department of Otorhinolaryngology Head and Neck Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai 200011, China
| | - H Wu
- Department of Otorhinolaryngology Head and Neck Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai 200011, China
| | - Z Y Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai Jiaotong University Ear Institute, Shanghai Key Laboratory of Translational Medicine on Ear and Nose Diseases, Shanghai 200011, China
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18
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Zhou YD, Zheng YR, Ma J, Deng YH. Crystal structure of bis(perchlorato-κ 1
O)-bis(3,4,5-trimethoxy-N-(pyridin-2-yl)benzamide-κ 2
N, O)copper(II), C 32H 30Cl 2CuN 4O 16. Z KRIST-NEW CRYST ST 2018. [DOI: 10.1515/ncrs-2018-0213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C32H30Cl2CuN4O16, triclinic, P1̄ (no. 2), a = 9.3135(5) Å, b = 9.5191(7) Å, c = 11.5417(6) Å, α = 108.509(4)°, β = 109.572(4)°, γ = 97.511(4)°, V = 881.48(10) Å3, Z = 2, R
gt(F) = 0.0636, wR
ref(F
2) = 0.1844, T = 296(2) K.
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Affiliation(s)
- Ya-Dong Zhou
- Department of Chemistry , Capital Normal University , Beijing 100048 , P.R. China
| | - Yan-Rui Zheng
- Department of Chemistry , Capital Normal University , Beijing 100048 , P.R. China
| | - Jie Ma
- Department of Chemistry , Capital Normal University , Beijing 100048 , P.R. China
| | - Yu-Heng Deng
- Department of Chemistry , Capital Normal University , Beijing 100048 , P.R. China
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Seo Y, Leong J, Park JD, Hong YT, Chu SH, Park C, Kim DH, Deng YH, Dushnov V, Soh J, Rogers S, Yang YY, Kong H. Diatom Microbubbler for Active Biofilm Removal in Confined Spaces. ACS Appl Mater Interfaces 2018; 10:35685-35692. [PMID: 30107112 PMCID: PMC8216637 DOI: 10.1021/acsami.8b08643] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Bacterial biofilms form on and within many living tissues, medical devices, and engineered materials, threatening human health and sustainability. Removing biofilms remains a grand challenge despite tremendous efforts made so far, particularly when they are formed in confined spaces. One primary cause is the limited transport of antibacterial agents into extracellular polymeric substances (EPS) of the biofilm. In this study, we hypothesized that a microparticle engineered to be self-locomotive with microbubbles would clean a structure fouled by biofilm by fracturing the EPS and subsequently improving transports of the antiseptic reagent. We examined this hypothesis by doping a hollow cylinder-shaped diatom biosilica with manganese oxide (MnO2) nanosheets. In an antiseptic H2O2 solution, the diatoms doped by MnO2 nanosheets, denoted as diatom bubbler, discharged oxygen gas bubbles continuously and became self-motile. Subsequently, the diatoms infiltrated the bacterial biofilm formed on either flat or microgrooved silicon substrates and continued to generate microbubbles. The resulting microbubbles merged and converted surface energy to mechanical energy high enough to fracture the matrix of biofilm. Consequently, H2O2 molecules diffused into the biofilm and killed most bacterial cells. Overall, this study provides a unique and powerful tool that can significantly impact current efforts to clean a wide array of biofouled products and devices.
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Affiliation(s)
- Yongbeom Seo
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Jiayu Leong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Jun Dong Park
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Yu-Tong Hong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Sang-Hyon Chu
- National Institute of Aerospace, 100 Exploration Way, Hampton, Virginia 23666, United States
| | - Cheol Park
- Advanced Materials and Processing Branch, NASA Langley Research Center, Hampton, Virginia 23681, United States
| | - Dong Hyun Kim
- Department of Human and Culture Convergence Technology R&BD Group, Korea Institute of Industrial Technology, Ansan-si, Gyeonggi-do 426-910, South Korea
| | - Yu-Heng Deng
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Vitaliy Dushnov
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Joonghui Soh
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Simon Rogers
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669, Singapore
| | - Hyunjoon Kong
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
- Carle Illinois College of Medicine, Department of Bioengineering, Department of Pathobiology, Carl R. Woese Institute for Genomic Biology, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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Vinu M, Senthil Raja D, Jiang YC, Liu TY, Xie YY, Lin YF, Yang CC, Lin CH, Alshehri SM, Ahamad T, Salunkhe RR, Yamauchi Y, Deng YH, Wu KCW. Effects of structural crystallinity and defects in microporous Al-MOF filled chitosan mixed matrix membranes for pervaporation of water/ethanol mixtures. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2017.11.007] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Xiao GW, Chen TF, Sun XZ, Guo H, Li ZF, Deng YH, Wan CQ. A route to robust thioether-functionalized MOF solid materials displaying heavy metal uptake and the ability to be further oxidized. Dalton Trans 2017; 46:12036-12040. [PMID: 28853748 DOI: 10.1039/c7dt02334k] [Citation(s) in RCA: 7] [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: 11/21/2022]
Abstract
Here we developed a facile solvent-assisted ligand exchange method for synthesizing thioether-containing hybrid metal-organic frameworks (MOFs) that cannot be made using direct synthesis. Such a tailored approach provides an alternative method to achieve thioether-based MOFs and its oxidation-decorated materials. These materials showed the ability to take up heavy metals from solution and the ability to capture CO2.
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Affiliation(s)
- Guo-Wei Xiao
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China.
| | - Teng-Fei Chen
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China.
| | - Xin-Zhan Sun
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China.
| | - Hui Guo
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China.
| | - Zhong-Feng Li
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China.
| | - Yu-Heng Deng
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China.
| | - Chong-Qing Wan
- Beijing Key Laboratory for Optical Materials and Photonic Devices, Department of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China. and State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China
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Chen JE, Fan MS, Chen YL, Deng YH, Kim JH, Alamri HR, Alothman ZA, Yamauchi Y, Ho KC, Wu KCW. Prussian Blue-Derived Synthesis of Hollow Porous Iron Pyrite Nanoparticles as Platinum-Free Counter Electrodes for Highly Efficient Dye-Sensitized Solar Cells. Chemistry 2017. [DOI: 10.1002/chem.201703339] [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: 11/10/2022]
Affiliation(s)
- Jeffrey E. Chen
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
- Department of NanoEngineering; University of California; San Diego, La Jolla CA 92093 USA
| | - Miao-Syuan Fan
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Yen-Lin Chen
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Yu-Heng Deng
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Jung Ho Kim
- Australian Institute for Innovative Materials (AIIM); University of Wollongong; Squires Way North Wollongong NSW 2500 Australia
- International Research Center for Materials Nanoarchitectonics (MANA); National Institute for Materials Science (NIMS); 1-1 Namiki, Tsukuba Ibaraki 305-0044 Japan
| | - Hatem R. Alamri
- Physics Department; Jamoum University College; Umm Al-Qura University; Makkah 21955 Saudi Arabia
| | - Zeid A. Alothman
- Advanced Materials Research Chair; Chemistry Department, College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Yusuke Yamauchi
- Australian Institute for Innovative Materials (AIIM); University of Wollongong; Squires Way North Wollongong NSW 2500 Australia
- International Research Center for Materials Nanoarchitectonics (MANA); National Institute for Materials Science (NIMS); 1-1 Namiki, Tsukuba Ibaraki 305-0044 Japan
- Advanced Materials Research Chair; Chemistry Department, College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Kuo-Chuan Ho
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Kevin C.-W. Wu
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
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Zhou J, He J, Kou LP, Feng HC, Deng YH, Zhang ZB, Zhou L, Wang JM, Jiang YW, Wu Y. [Phenotypic and genotypic features of twenty children with classic pantothenate kinase-associated neurodegeneration]. Zhonghua Er Ke Za Zhi 2017; 55:678-682. [PMID: 28881514 DOI: 10.3760/cma.j.issn.0578-1310.2017.09.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the phenotypic and genotypic characteristics in Chinese children with classic pantothenate kinase-associated neurodegeneration (PKAN). Method: The clinical, radiographic and genetic data of all PKAN patients diagnosed at pediatric department of Peking University First Hospital from November 2006 to December 2016 were retrospectively collected and analyzed. Result: Twenty patients with classic PKAN were included in the study. The median age at onset was 3.5 years (ranging from 1.0 to 10.0 years), and the most common initial symptom was gait disturbance (16 cases). At the last evaluation, the clinical features were limbs dystonia (20 cases), dysarthria (16 cases), dysphagia (11 cases), pyramidal sign (7 cases), mental regression (3 cases) and pigmentary retinopathy (5 cases). For those classic PKAN patients, the median time from onset of disease to loss of independent ambulation was 6.9 years (ranging from 2.0 to 12.0 years). Imaging data showed, except "eye of tiger" in MRI (19 cases), globus pallidus calcification in CT was also found in four patients. In gene testing, 26 different mutations in PANK2 gene were identified, and 16 of 26 were novel mutations. Moreover, c. 1502T>C (p.Ile501Asn) was the most common mutation (4 cases). Conclusion: Dystonia is the major neurologic feature of classic PKAN. Disease progression is rapid, with loss of independent ambulation within 10 years after onset. Except "eye of tiger" in MRI, globus pallidus calcification in CT may be another imaging feature of PKAN.Sixteen novel mutations of PANK2 gene were identified in the study.
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Affiliation(s)
- J Zhou
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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Chen JE, Fan MS, Chen YL, Deng YH, Kim JH, Alamri HR, Alothman ZA, Yamauchi Y, Ho KC, Wu KCW. Front Cover: Prussian Blue-Derived Synthesis of Hollow Porous Iron Pyrite Nanoparticles as Platinum-Free Counter Electrodes for Highly Efficient Dye-Sensitized Solar Cells (Chem. Eur. J. 54/2017). Chemistry 2017. [DOI: 10.1002/chem.201703338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jeffrey E. Chen
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
- Department of NanoEngineering; University of California; San Diego, La Jolla CA 92093 USA
| | - Miao-Syuan Fan
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Yen-Lin Chen
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Yu-Heng Deng
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Jung Ho Kim
- Australian Institute for Innovative Materials (AIIM); University of Wollongong; Squires Way North Wollongong NSW 2500 Australia
- International Research Center for Materials Nanoarchitectonics (MANA); National Institute for Materials Science (NIMS); 1-1 Namiki, Tsukuba Ibaraki 305-0044 Japan
| | - Hatem R. Alamri
- Physics Department; Jamoum University College; Umm Al-Qura University; Makkah 21955 Saudi Arabia
| | - Zeid A. Alothman
- Advanced Materials Research Chair; Chemistry Department, College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Yusuke Yamauchi
- Australian Institute for Innovative Materials (AIIM); University of Wollongong; Squires Way North Wollongong NSW 2500 Australia
- International Research Center for Materials Nanoarchitectonics (MANA); National Institute for Materials Science (NIMS); 1-1 Namiki, Tsukuba Ibaraki 305-0044 Japan
- Advanced Materials Research Chair; Chemistry Department, College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Kuo-Chuan Ho
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Kevin C.-W. Wu
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
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Chen JE, Fan MS, Chen YL, Deng YH, Kim JH, Alamri HR, Alothman ZA, Yamauchi Y, Ho KC, Wu KCW. Prussian Blue-Derived Synthesis of Hollow Porous Iron Pyrite Nanoparticles as Platinum-Free Counter Electrodes for Highly Efficient Dye-Sensitized Solar Cells. Chemistry 2017; 23:13284-13288. [DOI: 10.1002/chem.201702687] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Jeffrey E. Chen
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
- Department of NanoEngineering; University of California; San Diego, La Jolla CA 92093 USA
| | - Miao-Syuan Fan
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Yen-Lin Chen
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Yu-Heng Deng
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Jung Ho Kim
- Australian Institute for Innovative Materials (AIIM); University of Wollongong; Squires Way North Wollongong NSW 2500 Australia
- International Research Center for Materials Nanoarchitectonics (MANA); National Institute for Materials Science (NIMS); 1-1 Namiki, Tsukuba Ibaraki 305-0044 Japan
| | - Hatem R. Alamri
- Physics Department; Jamoum University College; Umm Al-Qura University; Makkah 21955 Saudi Arabia
| | - Zeid A. Alothman
- Advanced Materials Research Chair; Chemistry Department, College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Yusuke Yamauchi
- Australian Institute for Innovative Materials (AIIM); University of Wollongong; Squires Way North Wollongong NSW 2500 Australia
- International Research Center for Materials Nanoarchitectonics (MANA); National Institute for Materials Science (NIMS); 1-1 Namiki, Tsukuba Ibaraki 305-0044 Japan
- Advanced Materials Research Chair; Chemistry Department, College of Science; King Saud University; Riyadh 11451 Saudi Arabia
| | - Kuo-Chuan Ho
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
| | - Kevin C.-W. Wu
- Department of Chemical Engineering; National Taiwan University; No. 1, Sec. 4, Roosevelt Rd. Taipei 10617 Taiwan
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Kulkarni S, Kirkiles-Smith NC, Deng YH, Formica RN, Moeckel G, Broecker V, Bow L, Tomlin R, Pober JS. Eculizumab Therapy for Chronic Antibody-Mediated Injury in Kidney Transplant Recipients: A Pilot Randomized Controlled Trial. Am J Transplant 2017; 17:682-691. [PMID: 27501352 DOI: 10.1111/ajt.14001] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [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: 01/29/2016] [Revised: 07/24/2016] [Accepted: 07/24/2016] [Indexed: 01/25/2023]
Abstract
We hypothesized that de novo donor-specific antibody (DSA) causes complement-dependent endothelial cell injury in kidney transplants, as assessed by expression of endothelial cell-associated transcripts (ENDATs), that may be attenuated through complement inhibition. In total, 15 participants (five control, 10 treatment) with DSA and deteriorating renal function were enrolled. The treatment group received 6 mo of eculizumab followed by 6 mo of observation, whereas controls were observed. The primary end point was percentage change in estimated GFR (eGFR) trajectory over the treatment period. The treatment group had an improved eGFR trajectory versus control, based on our predetermined two-sided 0.10 significance level (p = 0.09). Within-subject analysis of treated participants at 6-mo intervals did not show significant change (p = 0.60). Modeling C1q status showed that C1q-positive patients had significantly higher mean eGFR than patients with negative C1q (p = 0.04). Biopsies revealed elevated renal ENDATs in most participants, but ENDATs were not reduced with complement inhibition. Our data suggest that eculizumab treatment may stabilize kidney function in patients with chronic persistent DSA based on our pilot a priori significance threshold. ENDAT expression predicative of acute humoral injury is not reduced with complement inhibition in this chronic setting. Further studies will be necessary to determine which patients may benefit from eculizumab.
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Affiliation(s)
- S Kulkarni
- Department of Surgery, Yale School of Medicine, New Haven, CT.,Department of Medicine, Yale School of Medicine, New Haven, CT
| | | | - Y H Deng
- Center for Analytical Science, Yale School of Public Health, New Haven, CT
| | - R N Formica
- Department of Surgery, Yale School of Medicine, New Haven, CT.,Department of Medicine, Yale School of Medicine, New Haven, CT
| | - G Moeckel
- Department of Pathology, Yale School of Medicine, New Haven, CT
| | - V Broecker
- Department of Pathology, University of Cambridge, Cambridge, UK
| | - L Bow
- Department of Surgery, Yale School of Medicine, New Haven, CT
| | - R Tomlin
- Department of Surgery, Yale School of Medicine, New Haven, CT
| | - J S Pober
- Department of Immunobiology, Yale School of Medicine, New Haven, CT.,Department of Pathology, Yale School of Medicine, New Haven, CT
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27
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Wu CW, Kang CH, Lin YF, Tung KL, Deng YH, Ahamad T, Alshehri SM, Suzuki N, Yamauchi Y. Towards Acid-Tolerated Ethanol Dehydration: Chitosan-Based Mixed Matrix Membranes Containing Cyano-Bridged Coordination Polymer Nanoparticles. J Nanosci Nanotechnol 2016; 16:4141-6. [PMID: 27451778 DOI: 10.1166/jnn.2016.12614] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Prussian blue (PB) nanoparticles, one of many cyano-bridged coordination polymers, are successfully incorporated into chitosan (CS) polymer to prepare PB/CS mixed matrix membranes (MMMs). The PB nanoparticles are uniformly distributed in the MMMs without the collapse of the original PB structure. As-prepared PB/CS MMMs are used for ethanol dehydration at 25 °C in the pervaporation process. The effect of loading PB in CS matrix on pervaporation performance is carefully investigated. The PB/CS membrane with 30 wt% PB loading shows the best performance with a permeate flux of 614 g. m-2 . h-1 and a separation factor of 1472. The pervaporation using our PB/CS membranes exhibits outstanding performance in comparison with the previously reported CS-based membranes and MMMs. Furthermore, the addition of PB allows PB/CS MMMs to be tolerant of acidic environment. The present work demonstrates good pervaporation performance of PB/CS MMMs for the separation of an ethanol/water (90:10 in wt%) solution. Our new system provides an opportunity for dehydration of bioethanol in the future.
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28
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Zhang F, Qu YJ, Wu WH, Deng YH. Crystal structure of a poly[bis(3,4,5,6-tetrachlorophthalato)neodym(III)potassium(I)] — 4,4′-bipyridine — water (1/1/5.5). Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2014-9125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C26H19Cl8KN2NdO13.5, triclinic, P1̅ (no. 2), a = 8.6114(17) Å, b = 12.665(3) Å, c = 16.997(3) Å, α = 96.53(3)°, β = 103.28(3)°, γ = 97.89(3)°, V = 1766.6(6) Å3, Z = 2, R
gt
(F) = 0.0254, wR
ref
(F
2
) = 0.0838, T = 293 K.
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Affiliation(s)
- Fan Zhang
- Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
| | - Ya-Jie Qu
- Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
| | - Wen-Hua Wu
- Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
| | - Yu-Heng Deng
- Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
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29
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Du L, Li SH, Deng YH. Crystal structure of (E)-1-((1-(3,4-dimethoxyphenyl)ethyl)imino) guanidinium perchlorate, C11H17ClN4O6. Z KRIST-NEW CRYST ST 2015. [DOI: 10.1515/ncrs-2014-9120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract C11H17ClN4O6, monoclinic, C2/c (no. 15), a = 17.870(6) Å, b = 7.885(2) Å, c = 23.105(8) Å, β = 108.139(4)°, V = 3093.9 Å3, Z = 8, Rgt(F) = 0.0614, wRref(F2) = 0.1961, T = 293 K.
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Affiliation(s)
- Lin Du
- 1Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
| | - Song-He Li
- 1Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
| | - Yu-Heng Deng
- 1Department of Chemistry, Capital Normal University, Beijing 100048, P. R. China
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30
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Deng YH, He HY, Zhang FJ. Immunogenicity and protective efficacy conferred by a novel recombinant Mycobacterium bovis bacillus Calmette-Guérin strain expressing interleukin-12p70 of human cytokine and Ag85A of Mycobacterium tuberculosis fusion protein. Scand J Immunol 2013; 78:497-506. [PMID: 24283772 DOI: 10.1111/sji.12116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 09/13/2013] [Indexed: 11/27/2022]
Abstract
Mycobacterium bovis bacillus Calmette-Guérin (BCG) immunization provides protection against tuberculosis (TB) in infants, but the antituberculosis protective immunity wanes gradually after initial immunization and lasts less than 15 years. Therefore, more efficacious vaccines are urgently needed. In this study, we constructed a new tuberculosis vaccine of recombinant BCG strain (rBCG-IA), which could express IL-12p70 of human cytokine and Ag85A of M. tuberculosis fusion protein, and investigated its immunogenicity in BALB/c mice by measuring antibody titres, proliferation rate of splenocytes, ratios of CD4(+) T and CD8(+) T cells stimulated by specific antigens and levels of IFN-γ production in antigen-stimulated splenocyte cultures. Meanwhile, we evaluated its protective efficacy against M. tuberculosis H37Rv infection through detecting lung histopathology, organ bacterial loads and lung acid-fast stain. Immunogenicity experiments illustrated that from 2nd to 8th week after immunization, the rBCG-IA vaccine was able to induce the highest level of antibody titres, proliferation rate of splenocytes and IFN-γ production among groups and gained improved ratio of CD4(+) T and CD8(+) T cells from 6th to 8th week after vaccination. And from 2nd to 8th week after M. tuberculosis H37Rv infection, the score of pathology and bacterial loads in the rBCG-IA group were obviously lower than that in rBCG-I group, rBCG-A group or control group (PBST group), but similar to that in BCG group. This study suggested that rBCG-IA was able to elicit stronger humoral and cellular immune responses, but could only confer similar protective efficacy compared with its parental BCG vaccine.
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Affiliation(s)
- Y H Deng
- Department of Human Anatomy, Medical College, Kunming University of Science and Technology, Kunming, China
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31
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Karthika P, Ataee-Esfahani H, Deng YH, Wu KCW, Rajalakshmi N, Dhathathreyan KS, Arivuoli D, Ariga K, Yamauchi Y. Hard-templating Synthesis of Mesoporous Pt-Based Alloy Particles with Low Ni and Co Contents. CHEM LETT 2013. [DOI: 10.1246/cl.130054] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [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)
- Prasannan Karthika
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
- Centre for Fuel Cell Technology, International Advanced Research Centre for Powder Metallurgy and New Materials
- Crystal Growth Centre, Anna University
| | - Hamed Ataee-Esfahani
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
- Faculty of Science and Engineering, Waseda University
| | - Yu-Heng Deng
- Department of Chemical Engineering, National Taiwan University
| | - Kevin C.-W. Wu
- Department of Chemical Engineering, National Taiwan University
| | - Natarajan Rajalakshmi
- Centre for Fuel Cell Technology, International Advanced Research Centre for Powder Metallurgy and New Materials
| | | | | | - Katsuhiko Ariga
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
| | - Yusuke Yamauchi
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS)
- Faculty of Science and Engineering, Waseda University
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32
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Zhang YJ, Sun Y, Gao SM, Jiang XQ, Deng YH. 3,3,3′,3′-Tetramethyl-6,6′-bis[(pyridin-4-yl)methoxy]-1,1′-spirobiindane monohydrate. Acta Crystallogr Sect E Struct Rep Online 2012; 68:o1763-4. [PMID: 22719546 PMCID: PMC3379348 DOI: 10.1107/s1600536812021289] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Accepted: 05/10/2012] [Indexed: 12/03/2022]
Abstract
The asymmetric unit in the title compound, C33H34N2O2·H2O, consists of a V-shaped molecule and a water molecule to which it is hydrogen bonded. The angle between the mean planes of the two spiro-connected indane groups is 77.06 (5)°. The two five-membered rings of the indane groups have envelope conformations with the methylene atoms adjacent to the spiro C atom forming the flaps. They have deviations from the mean plane of the other four atoms in the rings of 0.374 (4) and 0.362 (4) Å. In the crystal, molecules are linked to form inversion dimers via O—H⋯N hydrogen bonds involving the pyridine N atoms and the solvent water molecule. The dimers are linked into a chain along the b axis by π–π stacking interactions between a pyridine ring and its centrosymmetrically related ring in an adjacent dimer. The centroid–centroid distance between the planes is 3.7756 (17) Å, the perpendicular distance is 3.4478 (11) Å and the offset is 1.539 Å.
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33
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Gao GR, Man HX, Xiao ZC, Deng YH. Chloridobis(1,10-phenanthroline-κN,N')copper(II) tetra-kis-(nitrato-κO,O')(1,10-phenanthroline-κN,N')terbate(III). Acta Crystallogr Sect E Struct Rep Online 2011; 67:m787-8. [PMID: 21754668 PMCID: PMC3120589 DOI: 10.1107/s160053681101837x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Accepted: 05/15/2011] [Indexed: 11/11/2022]
Abstract
The title complex salt, [CuCl(C12H8N2)2][Tb(NO3)4(C12H8N2)], consists of discrete [CuCl(phen))2]+ cations and [Tb(NO3)4(phen)]− anions (phen is 1,10-phenanthroline). The [CuCl(phen))2]+ cation contains a five-coordinate Cu2+ ion, ligated by two bidentate phen ligands and one Cl− ion, exhibiting a distorted CuN4Cl trigonal–bipyramidal geometry. In the [Tb(NO3)4(phen)]− anion, the Tb3+ ion is coordinated by one chelating phen ligand and four chelating nitrates, forming a distorted TbN2O8 bicapped dodecahedral configuration. The anions and cations are assembled into a three-dimensional network by weak C—H⋯Cl and C—H⋯O hydrogen bonds. There is also a significant π–π stacking interaction, with a centroid–centroid distance of 3.635 (2) Å.
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Affiliation(s)
- Guo-Ran Gao
- Department of Chemistry, Capital Normal University, Beijing 100048, People's Republic of China
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34
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Qiu QM, Deng YH, Sun JJ, Yang W, Jin QH, Zhang CL. Crystal structure of bis(biimidazole-k2N,N')- bis(isothiocyanato-kN)cobalt(II)-dimethylsulfoxide (1:2), Co(C6H6N4)2(NCS)2 · 2C2H6SO. Z KRIST-NEW CRYST ST 2011. [DOI: 10.1524/ncrs.2011.0280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Yang W, Deng YH, Xiao YL, Dai YC, Zhang YY, Jin QH, Zhang CL. Crystal structure of bis(benzoato-kO)bis(2,2'-biimidazole- k2N,N')copper(II), Cu(C6H6N4)2(C7H5O2)2. Z KRIST-NEW CRYST ST 2011. [DOI: 10.1524/ncrs.2011.0252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Deng YH, Sun Z, Yang XL, Bao L. Improved immunogenicity of recombinant Mycobacterium bovis bacillus Calmette-Guérin strains expressing fusion protein Ag85A-ESAT-6 of Mycobacterium tuberculosis. Scand J Immunol 2010; 72:332-8. [PMID: 20883318 DOI: 10.1111/j.1365-3083.2010.02444.x] [Citation(s) in RCA: 14] [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: 11/29/2022]
Abstract
Early secretory antigen target 6 (ESAT-6) is a dominant target for cell-mediated immunity in the early phase of tuberculosis (TB) in patients with TB, causing T-cell proliferation and gamma interferon (IFN-γ) production, which has been considered to be a protective antigen that can be used for future vaccine development. Ag85A is the most essential component for bacterial survival within macrophages and has been used in numerous vaccine preparations, which can induce strong cellular immune responses. In this study, we constructed a new recombinant bacilli Calmette-Guérin (BCG) strain (rBCG-AE) that could express fusion protein Ag85A-ESAT-6 of Mycobacterium tuberculosis and evaluated its immunogenicity in BALB/c mice. There was no evidence for increased virulence of this rBCG. Our experiments illustrated that the rBCG-AE was able to induce higher titer of antibody and elicit more long-lasting and stronger Th1 type cellular immune responses than the parental BCG strain, or rBCG-A (expressing Ag85A) strain, or rBCG-E (expressing ESAT-6) strain, which are characterized by the strong antibody response, the proliferation rate of splenocytes, the ratio of CD4(+) T and CD8(+) T cells stimulated by tuberculin-purified protein derivative and elevated levels of IFN-γ in antigen-stimulated splenocyte cultures. The results show that rBCG-AE is an improved TB vaccine for further study.
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Affiliation(s)
- Y H Deng
- Laboratory of Infection and Immunity, West China Center of Medical sciences, Sichuan University, Chengdu, China
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37
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Zhang F, Deng YH, Zhu HJ, Yang YL, Wang ST. [Spectroscopy and thermostability of series rare-earth complexes with 3-nitrophthalic acid]. Guang Pu Xue Yu Guang Pu Fen Xi 2009; 29:2773-2776. [PMID: 20038058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A series of rare-earth compound RE2L2 (HL)2 (H2O)6 x 2H2O (RE=La, Nd, Eu, Tb, Er, Y) containing 3-nitrophthalic acid (H2L) ligand were synthesized from ethanol-water solution, and characterized and investigated by the element analysis, infrared and ultraviolet absorption spectra and different thermal-thermogravimetric analysis. The results of the spectroscopic analysis were conformed to the crystal structures determined by X-ray diffraction, showing that the carboxylate (-COO-) and carboxyl (-COOH) groups of the ligand link to the rare-earth ions by bridging and terminal mode respectively. Two rare-earth ions were linked by two di-deprotonated ligand L(2-) in bridging-chelating mode to form a dinuclear structure, and coordinated by the other two mono-deprotonated ligands HL-in terminal chelating mode using their carboxylate (-COO-) and carboxyl (-COOH) group together, respectively. The IR spectra shows the existence of the carboxylate (-COO-) and carboxyl (-COOH) group and the hydrogen bond interactions between the carboxyl (-COOH) group and crystal water. The DTA-TGA data were consistent with the composition of compounds, exhibiting an endothermic peak of the loss of the crystal and coordinated waters at about 150 degrees C and two exothermic peaks of the oxidation and decomposition of ligands in the rang of about 340 to 460 degrees C.
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Affiliation(s)
- Fan Zhang
- Department of Chemistry, Capital Normal University, Beijing 100037, China.
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Keene TD, Deng YH, Li FG, Ding YF, Wu B, Liu SX, Ambrus C, Waldmann O, Decurtins S, Yang XJ. Magnetostructural investigations into an S=1/2 sheet and a tetranuclear butterfly cluster. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2008.10.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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39
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Yang P, Yang XJ, Yu J, Liu Y, Zhang C, Deng YH, Wu B. Zinc compounds with or without Zn–Zn bond: Alkali metal reduction of LZnCl2 (L = α-diimine ligands). Dalton Trans 2009:5773-9. [DOI: 10.1039/b904478g] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Yang YL, Li FG, Zhang QJ, Ding YF, Deng YH. Crystal structure of diaquadichloro(1,10-phenanthroline)chromium(III) chloride dihydrate, [CrCl2(C12H8N2)(H2O)2]Cl ·2H2O. Z KRIST-NEW CRYST ST 2008. [DOI: 10.1524/ncrs.2008.0179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Lu XM, Li PZ, Wang XT, Gao S, Wang XJ, Zhou L, Liu CS, Sui XN, Feng JH, Deng YH, Jin QH, Liu J, Liu N, Lian JP. pH-Directed assembly and magnetic properties of two polynuclear MnII complexes: (Δ, Λ)-{Mn3(phen)2(OOCCH3)6} and 1-D [Mn(phen)Cl2]n. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.08.027] [Citation(s) in RCA: 9] [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: 11/24/2022]
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42
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Lu XM, Li PZ, Wang XT, Gao S, Wang XJ, Wang S, Deng YH, Zhang YJ, Zhou L. Syntheses, crystal structures and magnetic behaviors of three MnII-terephthalate coordination polymers containing terminal ligands. Polyhedron 2008. [DOI: 10.1016/j.poly.2008.04.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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43
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Wang ST, Yang YL, Zhu HJ, Nie FM, Zong RF, Deng YH. [Synthesis and spectral characterization of rare-earth-ortho-amino phenylbenzoate-2,2'-bipyridine complexes]. Guang Pu Xue Yu Guang Pu Fen Xi 2006; 26:933-5. [PMID: 16883872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The solid rare-earth complexes were synthesized using rare-earth ions (RE=Tb, Nd, Sm, La) reacting with ortho-amino phenylbenzoic acid (L) and 2,2'-bipyridine (bipy). Their compositions were confirmed and the spectral properties were characterized by element analysis, infrared and ultraviolet absorption spectra, and DTA-TGA. The fluorescent properties of complexes TbL3 and TbL3 x bipy x 3H2O were also measured and discussed. The result shows that the fluorescence intensity of TbL3 x bipy 3H2O is stronger than that of TbL3.
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Affiliation(s)
- Shao-Ting Wang
- Department of Chemistry, Capital Normal University, Beijing 100037, China
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44
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Jin SX, Bi DZ, Wang J, Wang YZ, Hu HG, Deng YH. Pharmacokinetics and tissue distribution of zidovudine in rats following intravenous administration of zidovudine myristate loaded liposomes. Pharmazie 2005; 60:840-3. [PMID: 16320946] [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: 05/05/2023]
Abstract
Liposomes accumulating in the reticuloendothelial system (RES) appear to be a promising vehicle to improve the therapeutic index of anti-HIV drugs such as zidovudine (AZT). Since the entrapment efficiency of AZT in liposomes was found to be low and AZT leakage from liposomes is fast, zidovudine myristate (AZT-M) was synthesized as a prodrug, and AZT-M incorporated liposomes in a lyophilized form were prepared with an average diameter of 90 nm and an encapsulation efficiency of 98% after reconstitution. The pharmacokinetic profiles and tissue distribution of AZT after i.v. administration of AZT-M liposomes in rats were investigated, and the results were compared with those after i.v. administration of AZT solution. AZT levels in plasma were significantly higher following application of AZT-M liposomes compared with AZT solution, and AUC0_infinity increased from 5.0 +/- 0.7 micromol x min x ml(-1) to 8.2 +/- 1.7 micromol x min x ml(-1) accordingly. Tissue distribution studies also confirmed higher concentrations of AZT in organs of RES and brain, suggesting that AZT-M liposomes might be promising candidates for therapy of HIV infections.
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Affiliation(s)
- S X Jin
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
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Yang YL, Deng YH, Wang ST, Zong RF. [Synthesis, characterization and fluorescence property of europium ternary complex p-nitrophenylacetic acid and 1, 10-phenanthroline]. Guang Pu Xue Yu Guang Pu Fen Xi 2001; 21:680-681. [PMID: 12945330] [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: 05/24/2023]
Abstract
The europium ternary solid complex containing p-nitrophenylacetic acid and 1, 10-phenanthroline was synthesized in this work, and the chemical formula of this compound was determined to be EuL3 phen by elemental analysis. The complex has been characterized by analysis of molar conductivity, TG-DTA, IR and UV. The fluorescence spectra of this Eu3+ complex has been investigated also in this paper.
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Affiliation(s)
- Y L Yang
- Department of Chemistry, Capital Normal University, Beijing 100037, China
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Wang Y, Deng YH. [Nursing care of nasopharyngeal carcinoma patients treated with gamma knife]. Zhonghua Hu Li Za Zhi 1997; 32:390-1. [PMID: 9384044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Lu B, Zhang L, Deng YH. [Preparation of capsules of microencapsulated indomethacin and their bioavailability in rabbits]. Hua Xi Yi Ke Da Xue Xue Bao 1986; 17:328-31. [PMID: 3570271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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