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Lightowler M, Li S, Ou X, Cho J, Liu B, Li A, Hofer G, Xu J, Yang T, Zou X, Lu M, Xu H. Phase Identification and Discovery of an Elusive Polymorph of Drug-Polymer Inclusion Complex Using Automated 3D Electron Diffraction. Angew Chem Int Ed Engl 2024; 63:e202317695. [PMID: 38380831 DOI: 10.1002/anie.202317695] [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: 11/20/2023] [Revised: 02/16/2024] [Accepted: 02/17/2024] [Indexed: 02/22/2024]
Abstract
3D electron diffraction (3D ED) has shown great potential in crystal structure determination in materials, small organic molecules, and macromolecules. In this work, an automated, low-dose and low-bias 3D ED protocol has been implemented to identify six phases from a multiple-phase melt-crystallisation product of an active pharmaceutical ingredient, griseofulvin (GSF). Batch data collection under low-dose conditions using a widely available commercial software was combined with automated data analysis to collect and process over 230 datasets in three days. Accurate unit cell parameters obtained from 3D ED data allowed direct phase identification of GSF Forms III, I and the known GSF inclusion complex (IC) with polyethylene glycol (PEG) (GSF-PEG IC-I), as well as three minor phases, namely GSF Forms II, V and an elusive new phase, GSF-PEG IC-II. Their structures were then directly determined by 3D ED. Furthermore, we reveal how the stabilities of the two GSF-PEG IC polymorphs are closely related to their crystal structures. These results demonstrate the power of automated 3D ED for accurate phase identification and direct structure determination of complex, beam-sensitive crystallisation products, which is significant for drug development where solid form screening is crucial for the overall efficacy of the drug product.
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Affiliation(s)
- Molly Lightowler
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-106 91, Sweden
| | - Shuting Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xiao Ou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jungyoun Cho
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-106 91, Sweden
| | - Binbin Liu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Ao Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Gerhard Hofer
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-106 91, Sweden
| | - Jiaoyan Xu
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-106 91, Sweden
| | - Taimin Yang
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-106 91, Sweden
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-106 91, Sweden
| | - Ming Lu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Hongyi Xu
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, SE-106 91, Sweden
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Hultman L, Mazur S, Ankarcrona C, Palmqvist A, Abrahamsson M, Antti ML, Baltzar M, Bergström L, de Laval P, Edman L, Erhart P, Kloo L, Lundberg MW, Mikkelsen A, Moons E, Persson C, Rensmo H, Rosén J, Rudén C, Selleby M, Sundgren JE, Dick Thelander K, Tybrandt K, Weihed P, Zou X, Åstrand M, Björkman CP, Schneider JM, Eriksson O, Berggren M. Advanced materials provide solutions towards a sustainable world. Nat Mater 2024; 23:160-161. [PMID: 38307974 DOI: 10.1038/s41563-023-01778-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Affiliation(s)
- Lars Hultman
- Wallenberg Initiative Materials Science for Sustainability
- Thin Film Physics Division, Department of Physics, IFM, Linköping University, Linköping, Sweden
| | - Sara Mazur
- Wallenberg Initiative Materials Science for Sustainability
- Knut and Alice Wallenberg Foundation, Stockholm, Sweden
| | - Caroline Ankarcrona
- Wallenberg Initiative Materials Science for Sustainability
- Knut and Alice Wallenberg Foundation, Stockholm, Sweden
| | - Anders Palmqvist
- Wallenberg Initiative Materials Science for Sustainability
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Maria Abrahamsson
- Wallenberg Initiative Materials Science for Sustainability
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, Sweden
| | - Marta-Lena Antti
- Wallenberg Initiative Materials Science for Sustainability
- Department of Engineering Sciences and Mathematics, Division of Materials Science, Luleå University of Technology, Luleå, Sweden
| | - Malin Baltzar
- Wallenberg Initiative Materials Science for Sustainability
- H2 Green Steel, Stockholm, Sweden
| | - Lennart Bergström
- Wallenberg Initiative Materials Science for Sustainability
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Pontus de Laval
- Wallenberg Initiative Materials Science for Sustainability
- Knut and Alice Wallenberg Foundation, Stockholm, Sweden
| | - Ludvig Edman
- Wallenberg Initiative Materials Science for Sustainability
- The Organic Photonics and Electronics Group, Department of Physics, Umeå University, Umeå, Sweden
| | - Paul Erhart
- Wallenberg Initiative Materials Science for Sustainability
- Department of Physics, Chalmers University of Technology, Gothenburg, Sweden
| | - Lars Kloo
- Wallenberg Initiative Materials Science for Sustainability
- Applied Physical Chemistry, Department of Chemistry, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Mats W Lundberg
- Wallenberg Initiative Materials Science for Sustainability
- Sandvik AB, Stockholm, Sweden
| | - Anders Mikkelsen
- Wallenberg Initiative Materials Science for Sustainability
- NanoLund Center for Nanoscience, Lund University, Lund, Sweden
- Department of Physics, Lund University, Lund, Sweden
| | - Ellen Moons
- Wallenberg Initiative Materials Science for Sustainability
- Materials Science Research, Department of Engineering and Physics, Karlstad University, Karlstad, Sweden
| | - Cecilia Persson
- Wallenberg Initiative Materials Science for Sustainability
- Department of Materials Science and Engineering, Uppsala University, Uppsala, Sweden
| | - Håkan Rensmo
- Wallenberg Initiative Materials Science for Sustainability
- Condensed Matter Physics of Energy Materials, Division of X-ray Photon Science, Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
| | - Johanna Rosén
- Wallenberg Initiative Materials Science for Sustainability
- Materials Design Division, Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, Sweden
| | - Christina Rudén
- Wallenberg Initiative Materials Science for Sustainability
- Department of Environmental Science, Stockholm University, Stockholm, Sweden
| | - Malin Selleby
- Wallenberg Initiative Materials Science for Sustainability
- KTH Royal Institute of Technology, Stockholm, Sweden
| | - Jan-Eric Sundgren
- Wallenberg Initiative Materials Science for Sustainability
- Swedish Association of Engineering Industries, Stockholm, Sweden
| | - Kimberly Dick Thelander
- Wallenberg Initiative Materials Science for Sustainability
- Centre for Analysis and Synthesis and NanoLund, Lund University, Lund, Sweden
| | - Klas Tybrandt
- Wallenberg Initiative Materials Science for Sustainability
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, Sweden
| | - Pär Weihed
- Wallenberg Initiative Materials Science for Sustainability
- Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, Luleå, Sweden
| | - Xiaodong Zou
- Wallenberg Initiative Materials Science for Sustainability
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Maria Åstrand
- Wallenberg Initiative Materials Science for Sustainability
- Northvolt AB, Stockholm, Sweden
| | - Charlotte Platzer Björkman
- Wallenberg Initiative Materials Science for Sustainability
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
| | - Jochen M Schneider
- Wallenberg Initiative Materials Science for Sustainability
- Materials Chemistry, RWTH Aachen University, Aachen, Germany
| | - Olle Eriksson
- Wallenberg Initiative Materials Science for Sustainability
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
| | - Magnus Berggren
- Wallenberg Initiative Materials Science for Sustainability, .
- Laboratory of Organic Electronics, Department of Science and Technology, Linköping University, Norrköping, Sweden.
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Peng YJ, Li YH, Du C, Guo YS, Song JT, Jia CY, Zhang X, Liu MJ, Wang ZM, Liu B, Yan SL, Yang YX, Tang XL, Lin GX, Li XY, Zhang Y, Yuan JH, Xu SK, Chen CD, Lu JH, Zou X, Wan CS, Hu QH. [The cases of tracing the source of patients infected with Omicron variant of SARS-CoV-2 based on wastewater-based epidemiology in Shenzhen]. Zhonghua Yi Xue Za Zhi 2024; 104:302-307. [PMID: 38246776 DOI: 10.3760/cma.j.cn112137-20231016-00766] [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: 01/23/2024]
Abstract
Wastewater-based epidemiology (WBE) is an emerging discipline, which has been applied to drug abuse tracking and infectious disease pathogen surveillance. During the COVID-19 epidemic, WBE has been applied to monitor the epidemic trend and SARS-CoV-2 variants etc. In order to detect hidden COVID-19 cases and prevent transmission in the community, wastewater surveillance system for monitoring SARS-CoV-2 RNA was developed in Shenzhen. The sewage sampling sites were set up in key places such as the port areas, urban villages and residential communities of Futian, Nanshan, Luohu and Yantian districts. From July 26 to November 30, 2022, a total of 369 sewage sampling sites were set up, covering 1.93 million people. Continuous sampling was carried out for 3 hours in the peak period of water use every day. Sewage virus enrichment and SARS-CoV-2 nucleic acid detection were carried out by polyethylene glycol precipitation method and RT-qPCR, and a positive water sample disposal process was molded. This article aims to introduce the case of source tracing of COVID-19 infected patients based on urban sewage in Shenzhen. The sewage monitoring of Honghu water treatment plant in Luohu District played an early warning role, and the source of infection was traced. In the disposal of positive water samples in Futian South Road, Futian District, the important experience of monitoring point layout was obtained. In the sewage monitoring of Nanshan village, Nanshan District, the existence of occult infection was revealed. Sharing the experience of tracing the source of COVID-19 patients to avoid the spread of COVID-19 in the community based on wastewater surveillance of SARS-CoV-2 RNA in Shenzhen, and summarizing the advantages and application prospects of sewage surveillance can provide new ideas for monitoring emerging or re-emerging pathogens that are known to exhibit gastrointestinal excretion in the future.
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Affiliation(s)
- Y J Peng
- Biosafety Research Center, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Y H Li
- Microbiology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - C Du
- Microbiology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Y S Guo
- Division of Public Health Emergency, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - J T Song
- Water Ecology and Environment Division, Shenzhen Ecology and Environment Bureau, Shenzhen 518040, China
| | - C Y Jia
- Water Ecology and Environment Division, Shenzhen Ecology and Environment Bureau, Shenzhen 518040, China
| | - X Zhang
- Water Ecology and Environment Division, Shenzhen Ecology and Environment Bureau, Shenzhen 518040, China
| | - M J Liu
- Futian District Water Affairs Bureau, Shenzhen 518035, China
| | - Z M Wang
- Futian District Water Affairs Bureau, Shenzhen 518035, China
| | - B Liu
- Division of Water Supply and Drainage Management, Futian District Water Affairs Bureau, Shenzhen 518035, China
| | - S L Yan
- Division of Drainage and Disaster Prevention, Nanshan District Water Affairs Bureau, Shenzhen 518052, China
| | - Y X Yang
- Division of Drainage and Disaster Prevention, Nanshan District Water Affairs Bureau, Shenzhen 518052, China
| | - X L Tang
- Luohu Management Branch of Ecology Environment Bureau of Shenzhen Municipality, Shenzhen 518001, China
| | - G X Lin
- Division of Environmental Management, Luohu Management Branch of Ecology Environment Bureau of Shenzhen Municipality, Shenzhen 518001, China
| | - X Y Li
- Futian District Center for Disease Control and Prevention, Shenzhen 518040, China
| | - Y Zhang
- Department of Microbiological Laboratory, Futian District Center for Disease Control and Prevention, Shenzhen 518040, China
| | - J H Yuan
- Nanshan District Center for Disease Control and Prevention, Shenzhen 518054, China
| | - S K Xu
- Department of Infectious Disease Control and Prevention, Nanshan District Center for Disease Control and Prevention, Shenzhen 518054, China
| | - C D Chen
- Luohu District Center for Disease Control and Prevention, Shenzhen 518020, China
| | - J H Lu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - X Zou
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - C S Wan
- Biosafety Research Center, School of Public Health, Southern Medical University, Guangzhou 510515, China BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Q H Hu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
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Hogan-Lamarre P, Luo Y, Bücker R, Miller RJD, Zou X. STEM SerialED: achieving high-resolution data for ab initio structure determination of beam-sensitive nanocrystalline materials. IUCrJ 2024; 11:62-72. [PMID: 38038991 PMCID: PMC10833385 DOI: 10.1107/s2052252523009661] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023]
Abstract
Serial electron diffraction (SerialED), which applies a snapshot data acquisition strategy for each crystal, was introduced to tackle the problem of radiation damage in the structure determination of beam-sensitive materials by three-dimensional electron diffraction (3DED). The snapshot data acquisition in SerialED can be realized using both transmission and scanning transmission electron microscopes (TEM/STEM). However, the current SerialED workflow based on STEM setups requires special external devices and software, which limits broader adoption. Here, we present a simplified experimental implementation of STEM-based SerialED on Thermo Fisher Scientific STEMs using common proprietary software interfaced through Python scripts to automate data collection. Specifically, we utilize TEM Imaging and Analysis (TIA) scripting and TEM scripting to access the STEM functionalities of the microscope, and DigitalMicrograph scripting to control the camera for snapshot data acquisition. Data analysis adapts the existing workflow using the software CrystFEL, which was developed for serial X-ray crystallography. Our workflow for STEM SerialED can be used on any Gatan or Thermo Fisher Scientific camera. We apply this workflow to collect high-resolution STEM SerialED data from two aluminosilicate zeolites, zeolite Y and ZSM-25. We demonstrate, for the first time, ab initio structure determination through direct methods using STEM SerialED data. Zeolite Y is relatively stable under the electron beam, and STEM SerialED data extend to 0.60 Å. We show that the structural model obtained using STEM SerialED data merged from 358 crystals is nearly identical to that using continuous rotation electron diffraction data from one crystal. This demonstrates that accurate structures can be obtained from STEM SerialED. Zeolite ZSM-25 is very beam-sensitive and has a complex structure. We show that STEM SerialED greatly improves the data resolution of ZSM-25, compared with serial rotation electron diffraction (SerialRED), from 1.50 to 0.90 Å. This allows, for the first time, the use of standard phasing methods, such as direct methods, for the ab initio structure determination of ZSM-25.
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Affiliation(s)
- Pascal Hogan-Lamarre
- Department of Physics, University of Toronto, 80 George Street, Toronto, Ontario M5S 3H6, Canada
- Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany
| | - Yi Luo
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-106, Sweden
| | - Robert Bücker
- Max Planck Institute for the Structure and Dynamics of Matter, Hamburg, Germany
| | - R. J. Dwayne Miller
- Department of Physics, University of Toronto, 80 George Street, Toronto, Ontario M5S 3H6, Canada
- Department of Chemistry, University of Toronto, 80 George Street, Toronto, Ontario M5S 3H6, Canada
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-106, Sweden
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Shang QX, Xu K, Dai QG, Huang HD, Hu JL, Zou X, Chen LL, Wei Y, Li HP, Zhen Q, Cai W, Wang Y, Bao CC. [Analysis on the secondary attack rates of SARS-CoV-2 Omicron variant and the associated factors]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1550-1557. [PMID: 37859370 DOI: 10.3760/cma.j.cn112150-20230227-00162] [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: 10/21/2023]
Abstract
Objective: To evaluate the secondary attack rates of the SARS-CoV-2 Omicron variant and the associated factors. Methods: A total of 328 primary cases and 40 146 close contacts of the SARS-CoV-2 Omicron variant routinely detected in local areas of Jiangsu Province from February to April 2022 were selected in this study, and those with positive nucleic acid test results during 7 days of centralized isolation medical observation were defined as secondary cases. The demographic information and clinical characteristics were collected, and the secondary attack rate (SAR) and the associated factors were analyzed by using a multivariate logistic regression model. Results: A total of 1 285 secondary cases of close contacts were reported from 328 primary cases, with a SAR of 3.2% (95%CI: 3.0%-3.4%). Among the 328 primary cases, males accounted for 61.9% (203 cases), with the median age (Q1, Q3) of 38.5 (27, 51) years old. Among the 1 285 secondary cases, males accounted for 59.1% (759 cases), with the median age (Q1, Q3) of 34 (17, 52) years old. The multivariate logistic regression model showed that the higher SAR was observed in the primary male cases (OR=1.632, 95%CI: 1.418-1.877), younger than 20 years old (OR=1.766, 95%CI: 1.506-2.072),≥60 years old (OR=1.869, 95%CI: 1.476-2.365), infected with the BA.2 strain branch (OR=2.906, 95%CI: 2.388-3.537), the confirmed common cases (OR=2.572, 95%CI: 2.036-3.249), and confirmed mild cases (OR=1.717, 95%CI: 1.486-1.985). Meanwhile, the higher SAR was observed in the close contacts younger than 20 years old (OR=2.604, 95%CI: 2.250-3.015),≥60 years old (OR=1.287, 95%CI: 1.052-1.573) and exposure for co-residence (OR=27.854, 95%CI: 23.470-33.057). Conclusion: The sex and age of the primary case of the Omicron variant, the branch of the infected strain, case severity of the primary case, as well as the age and contact mode of close contacts are the associated factors of SAR.
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Affiliation(s)
- Q X Shang
- School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - K Xu
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Q G Dai
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - H D Huang
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - J L Hu
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - X Zou
- School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - L L Chen
- Department of Acute Infectious Disease Control and Prevention, Suzhou Center for Disease Control and Prevention, Suzhou 215004, China
| | - Y Wei
- Department of Acute Infectious Disease Control and Prevention, Nantong Center for Disease Control and Prevention, Nantong 226007, China
| | - H P Li
- Department of Acute Infectious Disease Control and Prevention, Lianyungang Center for Disease Control and Prevention, Lianyungang 222003, China
| | - Q Zhen
- Department of Acute Infectious Disease Control and Prevention, Changzhou Center for Disease Control and Prevention, Changzhou 213003, China
| | - W Cai
- Department of Acute Infectious Disease Control and Prevention, Suqian Center for Disease Control and Prevention, Suqian 223899, China
| | - Y Wang
- Department of Acute Infectious Disease Control and Prevention, Yangzhou Center for Disease Control and Prevention, Yangzhou 225007, China
| | - C C Bao
- School of Public Health, Nanjing Medical University, Nanjing 211166, China Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
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Lu M, Qu Y, Ma A, Zhu J, Zou X, Lin G, Li Y, Liu X, Wen Z. [Prediction of 1p/19q codeletion status in diffuse lower-grade glioma using multimodal MRI radiomics]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:1023-1028. [PMID: 37439176 DOI: 10.12122/j.issn.1673-4254.2023.06.19] [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: 07/14/2023]
Abstract
OBJECTIVE To develop a noninvasive method for prediction of 1p/19q codeletion in diffuse lower-grade glioma (DLGG) based on multimodal magnetic resonance imaging (MRI) radiomics. METHODS We collected MRI data from 104 patients with pathologically confirmed DLGG between October, 2015 and September, 2022. A total of 535 radiomics features were extracted from T2WI, T1WI, FLAIR, CE-T1WI and DWI, including 70 morphological features, 90 first order features, and 375 texture features. We constructed logistic regression (LR), logistic regression least absolute shrinkage and selection operator (LRlasso), support vector machine (SVM) and Linear Discriminant Analysis (LDA) radiomics models and compared their predictive performance after 10-fold cross validation. The MRI images were reviewed by two radiologists independently for predicting the 1p/19q status. Receiver operating characteristic curves were used to evaluate classification performance of the radiomics models and the radiologists. RESULTS The 4 radiomics models (LR, LRlasso, SVM and LDA) achieved similar area under the curve (AUC) in the validation dataset (0.833, 0.819, 0.824 and 0.819, respectively; P>0.1), and their predictive performance was all superior to that of resident physicians of radiology (AUC=0.645, P=0.011, 0.022, 0.016, 0.030, respectively) and similar to that of attending physicians of radiology (AUC=0.838, P>0.05). CONCLUSION Multiparametric MRI radiomics models show good performance for noninvasive prediction of 1p/19q codeletion status in patients with in diffuse lower-grade glioma.
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Affiliation(s)
- M Lu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Y Qu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - A Ma
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - J Zhu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - X Zou
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - G Lin
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Y Li
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - X Liu
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - Z Wen
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
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7
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Liang FY, Lin PL, Lin XJ, Han P, Chen RH, Wang JY, Zou X, Huang XM. [Preliminary experience of gasless transoral vestibular robotic thyroidectomy]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:596-601. [PMID: 37339900 DOI: 10.3760/cma.j.cn115330-20221108-00672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
Objective: To explore the feasibility and safety of the gasless transoral vestibular robotic thyroidectomy using skin suspension. Methods: The clinical data of 20 patients underwent gasless transoral vestibular robotic thyroidectomy in the Department of Otorhinolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University from February 2022 to May 2022 were retrospectively analyzed. Among them, 18 were females and 2 were males, aged (38.7±8.0) years old. The intraoperative blood loss, operation time, postoperative hospital stay, postoperative drainage volume, postoperative pain visual analogue scale (VAS) score, postoperative swallowing function swallowing impairment score-6 (SIS-6), postoperative aesthetic VAS score, postoperative voice handicap index-10 (VHI-10) voice quality, postoperative pathology and complications were recorded. SPSS 25.0 was used for statistical analysis of the data. Results: The operations were successfully completed without conversion to open surgery in all patients. Pathological examination showed papillary thyroid carcinoma in 18 cases, retrosternal nodular goiter in 1 case, and cystic change in goiter in 1 case. The operative time for thyroid cancer was 161.50 (152.75, 182.50) min [M (P25, P75), the same below] and the average operative time for benign thyroid diseases was 166.50 minutes. The intraoperative blood loss 25.00 (21.25, 30.00) ml. In 18 cases of thyroid cancer, the mean diameter of the tumors was (7.22±2.02) mm, and lymph nodes (6.56±2.14) were dissected in the central region, with a lymph node metastasis rate of 61.11%. The postoperative pain VAS score was 3.00 (2.25, 4.00) points at 24 hours, the mean postoperative drainage volume was (118.35±24.32) ml, the postoperative hospital stay was 3.00 (3.00, 3.75) days, the postoperative SIS-6 score was (4.90±1.58) points at 3 months, and the postoperative VHI-10 score was 7.50 (2.00, 11.00) points at 3 months. Seven patients had mild mandibular numbness, 10 patients had mild cervical numbness, and 3 patients had temporary hypothyroidism three months after surgery and 1 patient had skin flap burn, but recovered one month after surgery. All patients were satisfied with the postoperative aesthetic effects, and the postoperative aesthetic VAS score was 10.00 (10.00, 10.00). Conclusion: Gasless transoral vestibular robotic thyroidectomy using skin suspension is a safe and feasible option with good postoperative aesthetic effect, which can provide a new treatment option for some selected patients with thyroid tumors.
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Affiliation(s)
- F Y Liang
- Department of Otorhinolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Key Laboratory of Epigenetics and Gene Regulation of Malignant Tumor in Guangdong Province, Guangzhou 510280, China
| | - P L Lin
- Department of Otorhinolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Key Laboratory of Epigenetics and Gene Regulation of Malignant Tumor in Guangdong Province, Guangzhou 510280, China
| | - X J Lin
- Department of Otorhinolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Key Laboratory of Epigenetics and Gene Regulation of Malignant Tumor in Guangdong Province, Guangzhou 510280, China
| | - P Han
- Department of Otorhinolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Key Laboratory of Epigenetics and Gene Regulation of Malignant Tumor in Guangdong Province, Guangzhou 510280, China
| | - R H Chen
- Department of Otorhinolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Key Laboratory of Epigenetics and Gene Regulation of Malignant Tumor in Guangdong Province, Guangzhou 510280, China
| | - J Y Wang
- Department of Otorhinolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Key Laboratory of Epigenetics and Gene Regulation of Malignant Tumor in Guangdong Province, Guangzhou 510280, China
| | - X Zou
- Department of Otorhinolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Key Laboratory of Epigenetics and Gene Regulation of Malignant Tumor in Guangdong Province, Guangzhou 510280, China
| | - X M Huang
- Department of Otorhinolaryngology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Key Laboratory of Epigenetics and Gene Regulation of Malignant Tumor in Guangdong Province, Guangzhou 510280, China
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Wang HZ, Sun GX, Yan X, Su TH, Xu J, Li F, Liu X, Wang BD, Xin LM, Zou X. [Protective repair of discolored breast cancer HE sections by color transfer]. Zhonghua Bing Li Xue Za Zhi 2023; 52:507-511. [PMID: 37106297 DOI: 10.3760/cma.j.cn112151-20230110-00019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- H Z Wang
- Department of Breast Surgery, Qingdao Central Hospital Affiliated to Qingdao University, Qingdao 266042, China
| | - G X Sun
- Department of Clinical Medicine, Qingdao University Medical College, Qingdao 266042, China
| | - X Yan
- Department of Pathology, Qingdao Central Hospital Affiliated to Qingdao University, Qingdao 266042, China
| | - T H Su
- Medical Record Room of Qingdao Central Hospital Affiliated to Qingdao University, Qingdao 266042, China
| | - J Xu
- Department of Pathology, Qingdao Central Hospital Affiliated to Qingdao University, Qingdao 266042, China
| | - F Li
- School of Computer Engineering and Science Shanghai University, Shanghai 200444, China
| | - X Liu
- Department of Breast Surgery, Qingdao Central Hospital Affiliated to Qingdao University, Qingdao 266042, China
| | - B D Wang
- Department of Breast Surgery, Qingdao Central Hospital Affiliated to Qingdao University, Qingdao 266042, China
| | - L M Xin
- School of Computer Engineering and Science Shanghai University, Shanghai 200444, China
| | - X Zou
- Department of Breast Surgery, Qingdao Central Hospital Affiliated to Qingdao University, Qingdao 266042, China
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9
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Zou X, Yang JS, Chen WJ, Liang FY. [Two cases of Charcot-Marie-Tooth disease with hoarseness]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:501-504. [PMID: 37151000 DOI: 10.3760/cma.j.cn115330-20221107-00668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Affiliation(s)
- X Zou
- Department of Otolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang West Road, Guangzhou 510280, China
| | - J S Yang
- Department of Otolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang West Road, Guangzhou 510280, China
| | - W J Chen
- Department of Otolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang West Road, Guangzhou 510280, China
| | - F Y Liang
- Department of Otolaryngology-Head and Neck Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, 107 Yanjiang West Road, Guangzhou 510280, China
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10
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Kang C, Zhang Z, Kusaka S, Negita K, Usadi AK, Calabro DC, Baugh LS, Wang Y, Zou X, Huang Z, Matsuda R, Zhao D. Covalent organic framework atropisomers with multiple gas-triggered structural flexibilities. Nat Mater 2023; 22:636-643. [PMID: 37037962 DOI: 10.1038/s41563-023-01523-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 03/03/2023] [Indexed: 05/05/2023]
Abstract
Covalent organic frameworks (COFs) are emerging crystalline porous polymers, showing great potential for applications but lacking gas-triggered flexibility. Atropisomerism was experimentally discovered in 1922 but has rarely been found in crystals with infinite framework structures. Here we report atropisomerism in COF single crystals. The obtained COF atropisomers, namely COF-320 and COF-320-A, have identical chemical and interpenetrated structures but differ in the spatial arrangement of repeating units. In contrast to the rigid COF-320 structure, its atropisomer (COF-320-A) exhibits unconventional gas sorption behaviours with one or more sorption steps in isotherms at different temperatures. Single-crystal structures determined from continuous rotation electron diffraction and in situ powder X-ray diffraction demonstrate that these adsorption steps originate from internal pore expansion with or without changing the crystal space group. COF-320-A recognizes different gases by expanding its internal pores continuously (crystal-to-amorphous transition) or discontinuously (crystal-to-crystal transition) or having mixed transition styles, distinguishing COF-320-A from existing soft/flexible porous crystals. These findings extend atropisomerism from molecules to crystals and propel COFs into the covalently linked soft porous crystal regime, further advancing applications of soft porous crystals in gas sorption, separation and storage.
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Affiliation(s)
- Chengjun Kang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
| | - Zhaoqiang Zhang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
| | - Shinpei Kusaka
- Department of Chemistry and Biotechnology, School of Engineering, and Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Kohei Negita
- Department of Chemistry and Biotechnology, School of Engineering, and Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Adam K Usadi
- ExxonMobil Technology and Engineering Company, Annandale, NJ, USA
| | - David C Calabro
- ExxonMobil Technology and Engineering Company, Annandale, NJ, USA
| | | | - Yuxiang Wang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Zhehao Huang
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden.
| | - Ryotaro Matsuda
- Department of Chemistry and Biotechnology, School of Engineering, and Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Nagoya, Japan.
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore.
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11
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Klar PB, Krysiak Y, Xu H, Steciuk G, Cho J, Zou X, Palatinus L. Accurate structure models and absolute configuration determination using dynamical effects in continuous-rotation 3D electron diffraction data. Nat Chem 2023:10.1038/s41557-023-01186-1. [PMID: 37081207 DOI: 10.1038/s41557-023-01186-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/16/2023] [Indexed: 04/22/2023]
Abstract
Continuous-rotation 3D electron diffraction methods are increasingly popular for the structure analysis of very small organic molecular crystals and crystalline inorganic materials. Dynamical diffraction effects cause non-linear deviations from kinematical intensities that present issues in structure analysis. Here, a method for structure analysis of continuous-rotation 3D electron diffraction data is presented that takes multiple scattering effects into account. Dynamical and kinematical refinements of 12 compounds-ranging from small organic compounds to metal-organic frameworks to inorganic materials-are compared, for which the new approach yields significantly improved models in terms of accuracy and reliability with up to fourfold reduction of the noise level in difference Fourier maps. The intrinsic sensitivity of dynamical diffraction to the absolute structure is also used to assign the handedness of 58 crystals of 9 different chiral compounds, showing that 3D electron diffraction is a reliable tool for the routine determination of absolute structures.
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Affiliation(s)
- Paul B Klar
- Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic
- Department of Geosciences, University of Bremen, Bremen, Germany
| | - Yaşar Krysiak
- Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic
- Institute of Inorganic Chemistry, Leibniz University Hannover, Hannover, Germany
| | - Hongyi Xu
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Gwladys Steciuk
- Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic
| | - Jung Cho
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Lukas Palatinus
- Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic.
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12
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Luo Y, Wang B, Smeets S, Sun J, Yang W, Zou X. High-throughput phase elucidation of polycrystalline materials using serial rotation electron diffraction. Nat Chem 2023; 15:483-490. [PMID: 36717616 PMCID: PMC10070184 DOI: 10.1038/s41557-022-01131-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 12/16/2022] [Indexed: 02/01/2023]
Abstract
Rapid phase elucidation of polycrystalline materials is essential for developing new materials of chemical, pharmaceutical and industrial interest. Yet, the size and quantity of many crystalline phases are too small for routine X-ray diffraction analysis. This has become a workflow bottleneck in materials development, especially in high-throughput synthesis screening. Here we demonstrate the application of serial rotation electron diffraction (SerialRED) for high-throughput phase identification of complex polycrystalline zeolite products. The products were prepared from a combination of multiple framework T atoms ([Si,Ge,Al] or [Si,Ge,B]) and a simple organic structure-directing agent. We show that using SerialRED, five zeolite phases can be identified from a highly complex mixture. This includes phases with ultra-low contents undetectable using X-ray diffraction and phases with identical crystal morphology and similar unit cell parameters. By automatically and rapidly examining hundreds of crystals, SerialRED enables high-throughput phase analysis and allows the exploration of complex synthesis systems. It provides new opportunities for rapid development of polycrystalline materials.
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Affiliation(s)
- Yi Luo
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Sinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, China
| | - Bin Wang
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Stef Smeets
- Netherlands eScience Center, Amsterdam, Netherlands
| | - Junliang Sun
- College of Chemistry and Molecular Engineering, Beijing National Laboratory for Molecular Sciences, Peking University, Beijing, China
| | - Weimin Yang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Sinopec Shanghai Research Institute of Petrochemical Technology, Shanghai, China.
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden.
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13
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Cheng YP, Kong DF, Zhang J, Lyu ZQ, Chen ZG, Xiong HW, Lu Y, Luo QS, Lyu QY, Zhao J, Wen Y, Wan J, Lu FF, Lu JH, Zou X, Zhang Z. [Epidemiological characteristics of a 2019-nCoV outbreak caused by Omicron variant BF.7 in Shenzhen]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:379-385. [PMID: 36942331 DOI: 10.3760/cma.j.cn112338-20221031-00926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Objective: To explore the epidemiological characteristic of a COVID-19 outbreak caused by 2019-nCoV Omicron variant BF.7 and other provinces imported in Shenzhen and analyze transmission chains and characteristics. Methods: Field epidemiological survey was conducted to identify the transmission chain, analyze the generation relationship among the cases. The 2019-nCoV nucleic acid positive samples were used for gene sequencing. Results: From 8 to 23 October, 2022, a total of 196 cases of COVID-19 were reported in Shenzhen, all the cases had epidemiological links. In the cases, 100 were men and 96 were women, with a median of age, M (Q1, Q3) was 33(25, 46) years. The outbreak was caused by traverlers initial cases infected with 2019-nCoV who returned to Shenzhen after traveling outside of Guangdong Province.There were four transmission chains, including the transmission in place of residence and neighbourhood, affecting 8 persons, transmission in social activity in the evening on 7 October, affecting 65 persons, transmission in work place on 8 October, affecting 48 persons, and transmission in a building near the work place, affecting 74 persons. The median of the incubation period of the infection, M (Q1, Q3) was 1.44 (1.11, 2.17) days. The incubation period of indoor exposure less than that of the outdoor exposure, M (Q1, Q3) was 1.38 (1.06, 1.84) and 1.95 (1.22, 2.99) days, respcetively (Wald χ2=10.27, P=0.001). With the increase of case generation, the number and probability of gene mutation increased. In the same transmission chain, the proportion of having 1-3 mutation sites was high in the cases in the first generation. Conclusions: The transmission chains were clear in this epidemic. The incubation period of Omicron variant BF.7 infection was shorter, the transmission speed was faster, and the gene mutation rate was higher. It is necessary to conduct prompt response and strict disease control when epidemic occurs.
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Affiliation(s)
- Y P Cheng
- Institute for Infectious Disease Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - D F Kong
- Institute for Infectious Disease Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - J Zhang
- Institute for Infectious Disease Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Z Q Lyu
- Central Laboratory,Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Z G Chen
- Institute for Infectious Disease Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - H W Xiong
- Institute for Infectious Disease Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Y Lu
- Institute for Infectious Disease Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Q S Luo
- Institute for Infectious Disease Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Q Y Lyu
- Institute for Infectious Disease Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - J Zhao
- Institute for AIDS Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Y Wen
- Institute for Infectious Disease Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - J Wan
- Institute for Infectious Disease Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - F F Lu
- Fuyong Branch Center of Shenzhen Bao'an District Public Health Center, Shenzhen 518103, China
| | - J H Lu
- Central Office,Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - X Zou
- Central Office,Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Z Zhang
- Institute for Infectious Disease Prevention and Control, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
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14
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Cui H, Zeng L, Li R, Li Q, Hong C, Zhu H, Chen L, Liu L, Zou X, Xiao L. Radiomics signature based on CECT for non-invasive prediction of response to anti-PD-1 therapy in patients with hepatocellular carcinoma. Clin Radiol 2023; 78:e37-e44. [PMID: 36257868 DOI: 10.1016/j.crad.2022.09.113] [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] [Received: 05/09/2022] [Revised: 08/07/2022] [Accepted: 09/02/2022] [Indexed: 01/18/2023]
Abstract
PURPOSE This study aimed to develop a radiomics signature (RS) based on contrast-enhanced computed tomography (CECT) and evaluate its potential predictive value in hepatocellular carcinoma (HCC) patients receiving anti-PD-1 therapy. METHOD CECT scans of 76 HCC patients who received anti-PD-1 therapy were obtained in this study (training group = 53 and validation group = 23). The least absolute shrinkage and selection operator (LASSO) regression was applied to select radiomics features of primary and metastatic lesions and establish a RS to predict lesion-level response. Then, a nomogram combined the mean RS (MRS) and clinical variables with patient-level response as the end point. RESULTS In the lesion-level analysis, the area under the curves (AUCs) of RS in the training and validation groups were 0.751 (95% CI, 0.668-0.835) and 0.734 (95% CI, 0.604-0.864), respectively. In the patient-level analysis, the AUCs of the nomogram in the training and validation groups were 0.897 (95% CI, 0.798-0.996) and 0.889 (95% CI, 0.748-1.000), respectively. The nomogram stratified patients into low- and high-risk groups, which showed a significant difference in progression-free survival (PFS) (p<0.05). CONCLUSIONS The RS is a noninvasive biomarker for predicting anti-PD-1 therapy response in patients with HCC. The nomogram may be of clinical use for identifying high-risk patients and formulating individualised treatments.
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Affiliation(s)
- H Cui
- Big Data Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - L Zeng
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - R Li
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Q Li
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - C Hong
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - H Zhu
- Department of Medical Oncology, the First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - L Chen
- Department of Medical Quality Management, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - L Liu
- Big Data Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - X Zou
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
| | - L Xiao
- Big Data Center, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China; Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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15
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Wu WB, Zhang XB, Liu YP, Zou X, You R, Xie YL, Duan XT, Li HF, Wen K, Peng L, Hua YJ, Huang PY, Sun R, Chen JH, Chen MY. Stent pretreatment for internal carotid artery exposed to necrotic lesions in nasopharyngeal carcinoma. Rhinology 2023; 0:3056. [PMID: 36715464 DOI: 10.4193/rhin22.451] [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: 01/31/2023]
Abstract
BACKGROUND Post radiation nasopharyngeal necrosis (PRNN) invading the internal carotid artery (ICA) contributes to the death of 69.2-72.7% of PRNN patients. ICA occlusion is an effective treatment to avoid fatal bleeding, while some patients are intolerant. We present a novel method that allows for these patients without interrupting blood flow through the ICA. METHODOLOGY This study enrolled patients with PRNN-invaded ICA who were not suitable for ICA occlusion from April 2020 to November 2022. ICA stent pretreatment was performed in the 36 patients and followed the endoscopic nasopharyngectomy (ENPG) or conservative treatment for PRNN. We report the survival outcome and incidence of complications after stent implantation and compare the survival outcomes of ENPG and conservative treatment for PRNN followed by stent implantation. RESULTS ICA stent pretreatment was performed in the 36 enrolled patients, among which 14 underwent ENPG, and 22 received conservative treatment. 27.8% patients died after a median follow-up of 15 months. The Kaplan-Meier estimates of overall survival were higher in the ENPG group than in the conservative treatment group. Karnofsky performance status (KPS) was significantly higher in the ENPG group than in the non-ENPG group. CONCLUSIONS The innovative application of ICA stents is a promising treatment to improve outcomes in patients with PRNN invading the ICA who are unsuitable for ICA embolization, especially when followed by endoscopic surgery. However, methods to avoid postoperative cerebral ischemia and nasopharyngeal hemorrhage still require further study.
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Affiliation(s)
- W-B Wu
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - X-B Zhang
- Department of Neurosurgery, The third affiliated hospital of Southern Medical University, Guangzhou, P. R. China
| | - Y-P Liu
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - X Zou
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - R You
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - Y-L Xie
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - X-T Duan
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - H-F Li
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - K Wen
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - L Peng
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - Y-J Hua
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - P-Y Huang
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - R Sun
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
| | - J-H Chen
- Department of Neurosurgery, The third affiliated hospital of Southern Medical University, Guangzhou, P. R. China
| | - M-Y Chen
- Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
- Sun Yat-sen University Cancer Center
- State Key Laboratory of Oncology in South China
- Collaborative Innovation Center for Cancer Medicine
- Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, P.R. China
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16
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Zhang H, Li Z, Zheng S, Zheng P, Liang X, Li Y, Bu X, Zou X. Range-aided drift-free cooperative localization and consistent reconstruction of multi-ground robots. IEEE Robot Autom Lett 2023. [DOI: 10.1109/lra.2023.3244721] [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: 02/18/2023]
Affiliation(s)
- H. Zhang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - Z. Li
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - S. Zheng
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - P. Zheng
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Liang
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - Y. Li
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Bu
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Zou
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
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17
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Peng M, Liu Y, Jia X, Wu Y, Zou X, Ke M, Cai K, Zhang L, Lu D, Xu A. Dietary Total Antioxidant Capacity and Cognitive Function in Older Adults in the United States: The NHANES 2011-2014. J Nutr Health Aging 2023; 27:479-486. [PMID: 37357333 DOI: 10.1007/s12603-023-1934-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/13/2023] [Indexed: 06/27/2023]
Abstract
OBJECTIVES Oxidative stress level takes part in the development of cognitive decline. However, the association between total antioxidant capacity (TAC) from diet and cognitive function is controversial. The aim of this study was to investigate the relationship between TAC and the cognitive function of older adults in the U.S. DESIGN A cross-sectional study. SETTING National Health and Nutrition Examination Surveys database. PARTICIPANTS 2712 older adults aged over 60 years. MEASUREMENTS TAC was calculated from 8 antioxidative vitamins based on the reference values for vitamin C equivalent antioxidant capacity obtained from individuals' 24 h dietary recall. Four memory-related assessments were employed [Immediate Recall test (IRT), Delayed Recall test (DRT), Animal Fluency test (AFT), and Digit Symbol Substitution test (DSST)]. RESULTS Among the 2712 participants, the median age was 68 years, and 50.4% were women. Participants in the group with higher TAC levels had relatively higher IRT, AFT and DSST scores (P=0.025, P=0.008, P<0.001, respectively). In adjusted weighted linear regression, log-transformed TAC was positively associated with AFT (β=1.10, 95%CI: 0.51, 1.70) and DSST (β=2.81, 95%CI: 1.16, 4.45). Compared with the first quartile, the participants in the second (Q2 vs. Q1, OR=0.66, 95%CI: 0.43,1.02) and fourth quartile (Q4 vs. Q1, OR=0.47, 95%CI:0.28, 0.78) of log-transformed TAC showed a decreased risk of impaired cognitive function (ICF) after adjusting for confounders. The dose-response analysis indicated a gradual descent in the risk of ICF as TAC increases. Diabetes mellitus (DM) mediated part of the effect of TAC on ICF. The relationship between TAC and ICF was more pronounced in subjects with DM (Q4 vs Q1, OR=0.36, 95%CI:0.17, 0.74). CONCLUSION Our findings support that higher dietary antioxidant potential was related to a decreased risk of cognitive dysfunction, particularly in the subjects with DM who may have oxidative injury. DM was one of the factors mediating the effect of TAC on ICF.
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Affiliation(s)
- M Peng
- Anding Xu, Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, No.613, Huangpu Road West, Guangzhou, 510630, Guangdong Province, China, ; Dan Lu, Department of Neurology and Stroke Center, The First Affiliated Hospital of Jinan University, No.613, Huangpu Road West, Guangzhou, 510630, Guangdong Province, China,
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18
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Parmar D, Mallette AJ, Yang T, Zou X, Rimer JD. Unique Role of GeO 2 as a Noninvasive Promoter of Nano-Sized Zeolite Crystals. Adv Mater 2022; 34:e2205885. [PMID: 36125846 DOI: 10.1002/adma.202205885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 09/05/2022] [Indexed: 06/15/2023]
Abstract
The synthesis of zeolites with nano-sized dimensions is often limited to a narrow design space that conventionally relies upon the design of organics to direct hierarchical materials. Here, it is demonstrated that the addition of an inorganic modifier, germanium oxide (GeO2 ), to a zeolite growth mixture directs the formation of crystals with ultrasmall dimensions. This effect is observed for zeolites ZSM-11 and ZSM-5 over a range of synthesis conditions wherein the role of GeO2 in zeolite crystallization deviates from its typical function as a heteroatom. Notably, the final products contain trace amounts of Ge, which indicates the inorganic modifier does not compete for sites in the zeolite framework based on its formation of a discrete phase that enables GeO2 recovery. Catalytic tests using the methanol-to-hydrocarbons reaction reveal significant enhancement in the performance of zeolite catalysts prepared with GeO2 compared to reported examples of nano-sized zeolites. These findings highlight a potentially generalizable and commercially viable synthesis method to reduce mass-transport limitations in zeolites for diverse applications.
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Affiliation(s)
- Deependra Parmar
- Department of Chemical and Biomolecular Engineering, University of Houston, 4226 Martin Luther King Boulevard, Houston, TX, 77204, USA
| | - Adam J Mallette
- Department of Chemical and Biomolecular Engineering, University of Houston, 4226 Martin Luther King Boulevard, Houston, TX, 77204, USA
| | - Taimin Yang
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, 106 91, Sweden
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, 106 91, Sweden
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, 4226 Martin Luther King Boulevard, Houston, TX, 77204, USA
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19
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Yang T, Xu H, Zou X. Improving data quality for three-dimensional electron diffraction by a post-column energy filter and a new crystal tracking method. J Appl Crystallogr 2022; 55:1583-1591. [PMID: 36570655 PMCID: PMC9721325 DOI: 10.1107/s1600576722009633] [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: 01/03/2022] [Accepted: 09/30/2022] [Indexed: 11/30/2022] Open
Abstract
Three-dimensional electron diffraction (3D ED) has become an effective technique to determine the structures of submicrometre- (nanometre-)sized crystals. In this work, energy-filtered 3D ED was implemented using a post-column energy filter in both STEM mode and TEM mode [(S)TEM denoting (scanning) transmission electron microscope]. The setups for performing energy-filtered 3D ED on a Gatan imaging filter are described. The technique and protocol improve the accessibility of energy-filtered 3D ED post-column energy filters, which are available in many TEM laboratories. In addition, a crystal tracking method in STEM mode using high-angle annular dark-field imaging is proposed. This method enables the user to monitor the crystal position while collecting 3D ED data at the same time, allowing a larger tilt range without foregoing any diffraction frames or imposing extra electron dose. In order to compare the differences between energy-filtered and unfiltered 3D ED data sets, three well known crystallized inorganic samples have been studied in detail. For these samples, the final R 1 values improved by 10-30% for the energy-filtered data sets compared with the unfiltered data sets, and the structures became more chemically reasonable. Possible reasons for improvement are also discussed.
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Affiliation(s)
- Taimin Yang
- Department of Materials and Environmental Chemistry (MMK), Stockholm University, Svante Arrhenius väg 16 C, Stockholm, SE-10691, Sweden,Correspondence e-mail: ,
| | - Hongyi Xu
- Department of Materials and Environmental Chemistry (MMK), Stockholm University, Svante Arrhenius väg 16 C, Stockholm, SE-10691, Sweden,Correspondence e-mail: ,
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry (MMK), Stockholm University, Svante Arrhenius väg 16 C, Stockholm, SE-10691, Sweden
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20
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Sidiqi B, Parakrama R, Demyan L, Eckstein J, Nosrati J, Chitti B, Pasha S, Pinto D, Zavadsky T, Zou X, Patruni S, Kapusta A, Weiss M, King D, Herman J, Ghaly M. Stereotactic Body Radiation Therapy (SBRT) in a Standardized Neoadjuvant Therapy Pathway for Pancreatic Cancer across a Geographically Large and Diverse Healthcare System. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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21
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Zou X, Yang Y, Lin F, Chen J, Zhang H, Li L, Ouyang H, Pang D, Ren L, Tang X. Lactate facilitates classical swine fever virus replication by enhancing cholesterol biosynthesis. iScience 2022; 25:105353. [PMID: 36339254 PMCID: PMC9626675 DOI: 10.1016/j.isci.2022.105353] [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: 05/11/2022] [Revised: 09/14/2022] [Accepted: 10/11/2022] [Indexed: 11/29/2022] Open
Abstract
An emerging topic in virology is that viral replication is closely linked with the metabolic reprogramming of host cells. Understanding the effects of reprogramming host cell metabolism due to classical swine fever virus (CSFV) infection and the underling mechanisms would facilitate controlling the spread of classical swine fever (CSF). In the current study, we found that CSFV infection enhanced aerobic glycolysis in PK-15 cells. Blocking glycolysis with 2-deoxy-d-glycose or disrupting the enzymes PFKL and LDHA decreased CSFV replication. Lactate was identified as an important molecule in CSFV replication, independent of the pentose phosphate pathway and tricarboxylic acid cycle. Further analysis demonstrated that the accumulated lactate in cells promoted cholesterol biosynthesis, which facilitated CSFV replication and disrupted the type I interferon response during CSFV replication, and the disruption of cholesterol synthesis abolished the lactate effects on CSFV replication. The results provided more insights into the complex pathological mechanisms of CSFV. Aerobic glycolysis plays an important role in CSFV replication Intracellular lactate maintains CSFV replication as an effector of glycolysis Lactate promotes cholesterol biosynthesis to maintain CSFV replication Enhanced cholesterol biosynthesis inhibited the response of IFNs during CSFV replication
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Affiliation(s)
- Xiaodong Zou
- College of Animal Sciences, Jilin University, Changchun, China
| | - Yang Yang
- College of Animal Sciences, Jilin University, Changchun, China
| | - Feng Lin
- College of Animal Sciences, Jilin University, Changchun, China
| | - Jiahuan Chen
- College of Animal Sciences, Jilin University, Changchun, China
| | - Huanyu Zhang
- College of Animal Sciences, Jilin University, Changchun, China
| | - Linquan Li
- College of Animal Sciences, Jilin University, Changchun, China
| | - Hongsheng Ouyang
- College of Animal Sciences, Jilin University, Changchun, China
- Chongqing Research Institute of Jilin University, Chongqing, China
| | - Daxin Pang
- College of Animal Sciences, Jilin University, Changchun, China
- Chongqing Research Institute of Jilin University, Chongqing, China
| | - Linzhu Ren
- College of Animal Sciences, Jilin University, Changchun, China
- Corresponding author
| | - Xiaochun Tang
- College of Animal Sciences, Jilin University, Changchun, China
- Chongqing Research Institute of Jilin University, Chongqing, China
- Corresponding author
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22
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Zheng S, Li Z, Liu Y, Zhang H, Zheng P, Liang X, Li Y, Bu X, Zou X. UWB-VIO Fusion for Accurate and Robust Relative Localization of Round Robotic Teams. IEEE Robot Autom Lett 2022. [DOI: 10.1109/lra.2022.3208354] [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)
- S. Zheng
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - Z. Li
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - Y. Liu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - H. Zhang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - P. Zheng
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Liang
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - Y. Li
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Bu
- State Key Laboratory of Microwave Imaging Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
| | - X. Zou
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China
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23
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Xu T, Lei T, Zou X, Wei C, Zhang N, Wang Z. EP08.02-152 Long-Term Survival With Anlotinib in a Patient With Advanced Undifferentiated Large-Cell Lung Cancer and Rare Tonsillar Metastasis. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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24
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Lei T, Xu T, Zou X, Zhang N, Wei C, Wang Z. EP16.04-024 HMGB1-mediated Autophagy Promotes Gefitinib Resistance in Human Non-small Cell Lung Cancer. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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25
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Ding X, Zhang W, You R, Zou X, Wang Z, Ouyang YF, Liu YL, Peng L, You-Ping L, Duan CY, Yang Q, Lin C, Yulong X, Chen SY, Gu CM, Huang P, Hua Y, Chen M. 663P Camrelizumab plus apatinib in patients with recurrent or metastatic nasopharyngeal carcinoma failing first-line therapy: An open-label, single-arm, phase II study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.787] [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: 11/01/2022] Open
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26
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Hofer G, Calmanovici Pacoste L, Wang L, Xu H, Zou X. Dare to spin – well diffracting protein nanocrystals through on-vortex crystallisation. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322095328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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27
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Pacoste L, Hofer G, Kumar R, Lebrette H, Choo Lee C, Xu H, Högbom M, Zou X. Charge refinement of metal ion cofactors in protein crystals using microED. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322091392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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28
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Broadhurst E, Mailk T, Jensen E, Yesibolati M, Mølhave K, Xu H, Zou X. In situ liquid phase 3D ED/microED for studying polymorphism. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322091562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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29
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Lightowler M, Li S, Ou X, Hofer G, Cho J, Zou X, Lu M, Xu H. Navigating crystal forms in pharmaceutical compounds by 3DED/microED. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322091069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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30
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Wang L, Hofer G, Zou X, Xu H. Protein crystallization 'de-optimization' for microED. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322091434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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31
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Ge M, Yang T, Xu H, Zou X, Huang Z. Direct Location of Organic Molecules in Framework Materials by Three-Dimensional Electron Diffraction. J Am Chem Soc 2022; 144:15165-15174. [PMID: 35950776 PMCID: PMC9434828 DOI: 10.1021/jacs.2c05122] [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] [Indexed: 11/30/2022]
Abstract
In the study of framework materials, probing interactions between frameworks and organic molecules is one of the most important tasks, which offers us a fundamental understanding of host-guest interactions in gas sorption, separation, catalysis, and framework structure formation. Single-crystal X-ray diffraction (SCXRD) is a conventional method to locate organic species and study such interactions. However, SCXRD demands large crystals whose quality is often vulnerable to, e.g., cracking on the crystals by introducing organic molecules, and this is a major challenge to use SCXRD for structural analysis. With the development of three-dimensional electron diffraction (3D ED), single-crystal structural analysis can be performed on very tiny crystals with sizes on the nanometer scale. Here, we analyze two framework materials, SU-8 and SU-68, with organic molecules inside their inorganic crystal structures. By applying 3D ED, with fast data collection and an ultralow electron dose (0.8-2.6 e- Å-2), we demonstrate for the first time that each nonhydrogen atom from the organic molecules can be ab initio located from structure solution, and they are shown as distinct and well-separated peaks in the difference electrostatic potential maps showing high accuracy and reliability. As a result, two different spatial configurations are identified for the same guest molecule in SU-8. We find that the organic molecules interact with the framework through strong hydrogen bonding, which is the key to immobilizing them at well-defined positions. In addition, we demonstrate that host-guest systems can be studied at room temperature. Providing high accuracy and reliability, we believe that 3D ED can be used as a powerful tool to study host-guest interactions, especially for nanocrystals.
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Affiliation(s)
- Meng Ge
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-106 91, Sweden
| | - Taimin Yang
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-106 91, Sweden
| | - Hongyi Xu
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-106 91, Sweden
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-106 91, Sweden
| | - Zhehao Huang
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-106 91, Sweden
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32
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Lin F, Zhang H, Li L, Yang Y, Zou X, Chen J, Tang X. PEDV: Insights and Advances into Types, Function, Structure, and Receptor Recognition. Viruses 2022; 14:v14081744. [PMID: 36016366 PMCID: PMC9416423 DOI: 10.3390/v14081744] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/06/2022] [Accepted: 08/06/2022] [Indexed: 11/16/2022] Open
Abstract
Porcine epidemic diarrhea virus (PEDV) has been endemic in most parts of the world since its emergence in the 1970s. It infects the small intestine and intestinal villous cells, spreads rapidly, and causes infectious intestinal disease characterized by vomiting, diarrhea, and dehydration, leading to high mortality in newborn piglets and causing massive economic losses to the pig industry. The entry of PEDV into cells is mediated by the binding of its spike protein (S protein) to a host cell receptor. Here, we review the structure of PEDV, its strains, and the structure and function of the S protein shared by coronaviruses, and summarize the progress of research on possible host cell receptors since the discovery of PEDV.
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Affiliation(s)
- Feng Lin
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Huanyu Zhang
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Linquan Li
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Yang Yang
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Xiaodong Zou
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Jiahuan Chen
- College of Animal Sciences, Jilin University, Changchun 130062, China
| | - Xiaochun Tang
- College of Animal Sciences, Jilin University, Changchun 130062, China
- Chongqing Research Institute, Jilin University, Chongqing 401120, China
- Correspondence:
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33
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Hofer G, Pacoste LC, Wang L, Xu H, Zou X. Dare to spin – well diffracting protein nanocrystals through on-vortex crystallisation. Acta Crystallogr A Found Adv 2022. [DOI: 10.1107/s2053273322097133] [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: 11/10/2022] Open
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34
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Cho J, Zou X. Revealing structural details with 3D electron diffraction/microcrystal electron diffraction. Acta Crystallogr A Found Adv 2022. [DOI: 10.1107/s2053273322097820] [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: 11/10/2022] Open
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35
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Wang S, Bai P, Cichocka MO, Cho J, Willhammar T, Wang Y, Yan W, Zou X, Yu J. Two-Dimensional Cationic Aluminoborate as a New Paradigm for Highly Selective and Efficient Cr(VI) Capture from Aqueous Solution. JACS Au 2022; 2:1669-1678. [PMID: 35911457 PMCID: PMC9326818 DOI: 10.1021/jacsau.2c00237] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Water pollutants existing in their oxyanion forms have high solubility and environmental mobility. To capture these anionic pollutants, cost-effective inorganic materials with cationic frameworks and outstanding removal performance are ideal adsorbents. Herein, we report that two-dimensional (2D) cationic aluminoborate BAC(10) sets a new paradigm for highly selective and efficient capture of Cr(VI) and other oxyanions from aqueous solution. The structure of Cr(VI)-exchanged BAC(10) sample (Cr(VI)@BAC(10), H0.22·Al2BO4.3·(HCrO4)0.22·2.64H2O) has been successfully solved by continuous rotation electron diffraction. The crystallographic data show that the 2D cationic layer of BAC(10) is built by AlO6 octahedra, BO4 tetrahedra, and BO3 triangles. Partial chromate ions exchanged with Cl- ions are located within the interlayer region, which are chemically bonded to the aluminoborate layer. BAC(10) shows faster adsorption kinetics compared to the commercial anion exchange resin (AER) and layered double hydroxides (LDHs), a higher maximum adsorption capacity of 139.1 mg/g than that of AER (62.77 mg/g), LDHs (81.43 mg/g), and a vast majority of cationic MOFs, and a much broader working pH range (2-10.5) than LDHs. Moreover, BAC(10) also shows excellent Cr(VI) oxyanion removal performance for a solution with a low concentration (1-10 mg/L), and the residual concentration can be reduced to below 0.05 mg/L of the WHO drinking water criterion. These superior properties indicate that BAC(10) is a promising material for remediation of Cr(VI) and other harmful oxyanions from wastewater.
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Affiliation(s)
- Shuang Wang
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
- College
of Chemistry and Chemical Engineering, Henan Province Function-Oriented
Porous Materials Key Laboratory, Luoyang
Normal University, 6
Jiqing Road, Luoyang 471934, P.R. China
| | - Pu Bai
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Magdalena Ola Cichocka
- Department
of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-106 91, Sweden
| | - Jung Cho
- Department
of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-106 91, Sweden
| | - Tom Willhammar
- Department
of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-106 91, Sweden
| | - Yunzheng Wang
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Wenfu Yan
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Xiaodong Zou
- Department
of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-106 91, Sweden
| | - Jihong Yu
- State
Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
- International
Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun 130012, P.R. China
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Cichocka MO, Burton AW, Afeworki M, Mabon R, Schmitt KD, Strohmaier KG, Vroman HB, Marella MA, Weston SC, Zou X, Willhammar T. Aluminosilicate Zeolite EMM-28 Containing Supercavities Determined by Continuous Rotation Electron Diffraction. Inorg Chem 2022; 61:11103-11109. [PMID: 35816337 PMCID: PMC9490810 DOI: 10.1021/acs.inorgchem.2c00856] [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] [Indexed: 11/29/2022]
Abstract
![]()
A new aluminosilicate zeolite, denoted EMM-28, has been
successfully
synthesized on a large scale using 1,1-(3,3-(1,3-phenylene)bis(propane-3,1-diyl))bis(1-methylpyrrolidinium)
hydroxide as an organic structure directing agent (OSDA), which was
scaled up to an ∼20 g scale with a yield of 77%. It crystallizes
as thin plates (40–100 nm in thickness), and the corresponding
powder X-ray diffraction (PXRD) pattern shows significant peak broadening
which makes it insufficient for structure determination. Continuous
rotation electron diffraction (cRED) data collected from 13 crystals
were successfully used to solve and refine the structure of EMM-28.
This illustrates that cRED data are capable of performing structure
determination despite limited PXRD data quality. EMM-28 has a unique
framework structure containing supercavities, >21 Å in size,
connected by one-dimensional 10-ring channels. High-resolution transmission
electron microscopy (HRTEM) confirmed the structure model. The structure
of EMM-28 is related to several known zeolite structures with large
cavities. The properties of zeolites are largely
determined by their
atomically well-defined microporous structures of molecular dimensions.
The new aluminosilicate zeolite, EMM-28, has a unique framework structure
containing large supercavities connected by one-dimensional channels
limited by 10 SiO4/AlO4 tetrahedra. The atomic
structure of EMM-28 was determined using continuous rotation electron
diffraction (cRED) data collected from 13 crystals. Despite limited
powder X-ray diffraction data quality, the structure could be successfully
refined using cRED data.
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Affiliation(s)
- Magdalena O Cichocka
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Allen W Burton
- Corporate Strategic Research, ExxonMobil Research & Engineering Co., 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Mobae Afeworki
- Corporate Strategic Research, ExxonMobil Research & Engineering Co., 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Ross Mabon
- Corporate Strategic Research, ExxonMobil Research & Engineering Co., 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Kirk D Schmitt
- Corporate Strategic Research, ExxonMobil Research & Engineering Co., 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Karl G Strohmaier
- Corporate Strategic Research, ExxonMobil Research & Engineering Co., 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Hilda B Vroman
- Corporate Strategic Research, ExxonMobil Research & Engineering Co., 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Michael A Marella
- Corporate Strategic Research, ExxonMobil Research & Engineering Co., 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Simon C Weston
- Corporate Strategic Research, ExxonMobil Research & Engineering Co., 1545 Route 22 East, Annandale, New Jersey 08801, United States
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Tom Willhammar
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
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37
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Samperisi L, Zou X, Huang Z. How to get maximum structure information from anisotropic displacement parameters obtained by three-dimensional electron diffraction: an experimental study on metal-organic frameworks. IUCrJ 2022; 9:480-491. [PMID: 35844475 PMCID: PMC9252158 DOI: 10.1107/s2052252522005632] [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] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Three-dimensional electron diffraction (3D ED) has been used for ab initio structure determination of various types of nanocrystals, such as metal-organic frameworks (MOFs), zeolites, metal oxides and organic crystals. These crystals are often obtained as polycrystalline powders, which are too small for single-crystal X-ray diffraction (SCXRD). While it is now possible to obtain accurate atomic positions of nanocrystals by adopting kinematical refinement against 3D ED data, most new structures are refined with isotropic displacement parameters (U eq), which limits the detection of possible structure disorders and atomic motions. Anisotropic displacement parameters (ADPs, Uij ) obtained by anisotropic structure refinement, on the other hand, provide information about the average displacements of atoms from their mean positions in a crystal, which can provide insights with respect to displacive disorder and flexibility. Although ADPs have been obtained from some 3D ED studies of MOFs, they are seldom mentioned or discussed in detail. We report here a detailed study and interpretation of structure models refined anisotropically against 3D ED data. Three MOF samples with different structural complexity and symmetry, namely ZIF-EC1, MIL-140C and Ga(OH)(1,4-ndc) (1,4-ndcH2 is naphthalene-1,4-dicarboxylic acid), were chosen for the studies. We compare the ADPs refined against individual data sets and how they are affected by different data-merging strategies. Based on our results and analysis, we propose strategies for obtaining accurate structure models with interpretable ADPs based on kinematical refinement against 3D ED data. The ADPs of the obtained structure models provide clear and unambiguous information about linker motions in the MOFs.
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Affiliation(s)
- Laura Samperisi
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden 106 91, Sweden
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden 106 91, Sweden
| | - Zhehao Huang
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden 106 91, Sweden
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38
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Ching PML, Zou X, Wu D, So RHY, Chen GH. Development of a wide-range soft sensor for predicting wastewater BOD 5 using an eXtreme gradient boosting (XGBoost) machine. Environ Res 2022; 210:112953. [PMID: 35182590 DOI: 10.1016/j.envres.2022.112953] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 02/06/2022] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
In wastewater monitoring, detecting extremely high pollutant concentrations is necessary to properly calibrate the treatment process. However, existing hardware sensors have a limited linear range which may fail to measure extremely high levels of pollutants; and likewise, the conventional "soft" model sensors are not suitable for the highly-skewed data distributions either. This study developed a new soft sensor by using eXtreme Gradient Boosting (XGBoost) machine learning to 'measure' the wastewater organics (in terms of 5-day biochemical oxygen demand (BOD5)). The soft sensor was tested on influent and effluent BOD5 of two different wastewater treatment plants to validate the results. The model results showed that XGBoost can detect these extreme values better than conventional soft sensors. This new soft sensor can function using a sparse input matrix via XGBoost's sparsity awareness algorithm - which can address the limitation of the conventional soft sensor with the fallibility of supporting hardware sensors even.
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Affiliation(s)
- P M L Ching
- Bioengineering Graduate Program, Department of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - X Zou
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Di Wu
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China; Center for Environmental and Energy Research, Ghent University Global Campus, Republic of Korea; Department of Green Chemistry and Technology, Ghent University, Belgium.
| | - R H Y So
- Department of Industrial Engineering and Decision Analytics, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - G H Chen
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, China
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39
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Zou X, Lin F, Yang Y, Chen J, Zhang H, Li L, Ouyang H, Pang D, Tang X. Cholesterol Biosynthesis Modulates CSFV Replication. Viruses 2022; 14:v14071450. [PMID: 35891429 PMCID: PMC9316236 DOI: 10.3390/v14071450] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/22/2022] [Accepted: 06/24/2022] [Indexed: 12/13/2022] Open
Abstract
Classical swine fever (CSF) caused by the classical swine fever virus (CSFV) has resulted in severe losses to the pig industry worldwide. It has been proposed that lipid synthesis is essential for viral replication, and lipids are involved in viral protein maturation and envelope production. However, the specific crosstalk between CSFV and host cell lipid metabolism is still unknown. In this study, we found that CSFV infection increased intracellular cholesterol levels in PK-15 cells. Further analysis demonstrated that CSFV infection upregulated PCSK9 expression to block the uptake of exogenous cholesterol by LDLR and enhanced the cholesterol biosynthesis pathway, which disrupted the type I IFN response in PK-15 cells. Our findings provide new insight into the mechanisms underpinning the pathogenesis of CSFV and hint at methods for controlling the disease.
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Affiliation(s)
- Xiaodong Zou
- College of Animal Sciences, Jilin University, Changchun 130062, China; (X.Z.); (F.L.); (Y.Y.); (J.C.); (H.Z.); (L.L.); (H.O.); (D.P.)
| | - Feng Lin
- College of Animal Sciences, Jilin University, Changchun 130062, China; (X.Z.); (F.L.); (Y.Y.); (J.C.); (H.Z.); (L.L.); (H.O.); (D.P.)
| | - Yang Yang
- College of Animal Sciences, Jilin University, Changchun 130062, China; (X.Z.); (F.L.); (Y.Y.); (J.C.); (H.Z.); (L.L.); (H.O.); (D.P.)
| | - Jiahuan Chen
- College of Animal Sciences, Jilin University, Changchun 130062, China; (X.Z.); (F.L.); (Y.Y.); (J.C.); (H.Z.); (L.L.); (H.O.); (D.P.)
| | - Huanyu Zhang
- College of Animal Sciences, Jilin University, Changchun 130062, China; (X.Z.); (F.L.); (Y.Y.); (J.C.); (H.Z.); (L.L.); (H.O.); (D.P.)
| | - Linquan Li
- College of Animal Sciences, Jilin University, Changchun 130062, China; (X.Z.); (F.L.); (Y.Y.); (J.C.); (H.Z.); (L.L.); (H.O.); (D.P.)
| | - Hongsheng Ouyang
- College of Animal Sciences, Jilin University, Changchun 130062, China; (X.Z.); (F.L.); (Y.Y.); (J.C.); (H.Z.); (L.L.); (H.O.); (D.P.)
- Chongqing Research Institute, Jilin University, Chongqing 401120, China
| | - Daxin Pang
- College of Animal Sciences, Jilin University, Changchun 130062, China; (X.Z.); (F.L.); (Y.Y.); (J.C.); (H.Z.); (L.L.); (H.O.); (D.P.)
- Chongqing Research Institute, Jilin University, Chongqing 401120, China
| | - Xiaochun Tang
- College of Animal Sciences, Jilin University, Changchun 130062, China; (X.Z.); (F.L.); (Y.Y.); (J.C.); (H.Z.); (L.L.); (H.O.); (D.P.)
- Chongqing Research Institute, Jilin University, Chongqing 401120, China
- Correspondence:
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40
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Luo Y, Clabbers MTB, Qiao J, Yuan Z, Yang W, Zou X. Visualizing the Entire Range of Noncovalent Interactions in Nanocrystalline Hybrid Materials Using 3D Electron Diffraction. J Am Chem Soc 2022; 144:10817-10824. [PMID: 35678508 PMCID: PMC9490833 DOI: 10.1021/jacs.2c02426] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
![]()
Noncovalent interactions
are essential in the formation and properties
of a diverse range of hybrid materials. However, reliably identifying
the noncovalent interactions in nanocrystalline materials remains
challenging using conventional methods such as X-ray diffraction and
spectroscopy. Here, we demonstrate that accurate atomic positions
including hydrogen atoms can be determined using three-dimensional
electron diffraction (3D ED), from which the entire range of noncovalent
interactions in a nanocrystalline aluminophosphate hybrid material
SCM-34 are directly visualized. The protonation states of both the
inorganic and organic components in SCM-34 are determined from the
hydrogen positions. All noncovalent interactions, including hydrogen-bonding,
electrostatic, π–π stacking, and van der Waals
interactions, are unambiguously identified, which provides detailed
insights into the formation of the material. The 3D ED data also allow
us to distinguish different types of covalent bonds based on their
bond lengths and to identify an elongated terminal P=O π-bond
caused by noncovalent interactions. Our results show that 3D ED can
be a powerful tool for resolving detailed noncovalent interactions
in nanocrystalline materials. This can improve our understanding of
hybrid systems and guide the development of novel functional materials.
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Affiliation(s)
- Yi Luo
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Max T B Clabbers
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Jian Qiao
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Sinopec Shanghai Research Institute of Petrochemical Technology, 1658 Pudong Beilu, Shanghai 201208, China
| | - Zhiqing Yuan
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Sinopec Shanghai Research Institute of Petrochemical Technology, 1658 Pudong Beilu, Shanghai 201208, China
| | - Weimin Yang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Sinopec Shanghai Research Institute of Petrochemical Technology, 1658 Pudong Beilu, Shanghai 201208, China
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
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Liu K, Tian X, Hong W, Xiao Y, Chen J, Jin H, Wang F, Xu X, Zang T, Zhang L, Pan M, Zou X. Positive Relationship Between Paroxysmal Vertigo and Right-to-Left Shunt: A Large Observational Study. Front Neurol 2022; 13:927853. [PMID: 35720061 PMCID: PMC9203692 DOI: 10.3389/fneur.2022.927853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 05/11/2022] [Indexed: 11/15/2022] Open
Abstract
Background The association between paroxysmal vertigo and right-to-left shunt (RLS) is rarely reported. This study investigates the prevalence and correlation of RLS in patients with different paroxysmal vertigo diseases. Methods Patients with paroxysmal vertigo from seven hospitals in China were included in this observational study between 2017 and 2021. Migraine patients within the same period were included for comparison. Demographic data and medical history were collected; contrast transthoracic echocardiography was performed; and the clinical features, Dizziness Handicap Inventory, and incidence of RLS in each group were recorded. Results A total of 2,751 patients were enrolled. This study's results demonstrated that the proportion of RLS in patients with benign recurrent vertigo (BRV) and vestibular migraine (VM) was significantly higher than that in patients with benign paroxysmal positional vertigo, Meniere's disease, and vestibular paroxysmia (P < 0.05). No statistical difference was shown between the frequency of RLS in patients with BRV and those with migraine and VM. A positive correlation was shown between the RLS grade and Dizziness Handicap Inventory scores of patients with VM and BRV (P < 0.01) after effectively controlleding the effect of confounding variables. Conclusions RLS was significantly associated with BRV and VM. RLS may be involved in the pathogeneses of BRV and VM and may serve as a differential reference index for the paroxysmal vertigo. Trial Registration CHRS, NCT04939922, registered 14 June 2021- retrospectively registered, https://register.clinicaltrials.gov.
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Affiliation(s)
- Kaiming Liu
- Department of Neurology, School of Medicine, Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Xiulin Tian
- Department of Neurology, School of Medicine, Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Wenwu Hong
- Department of Neurology, Tiantai People's Hospital of Zhejiang Province, Taizhou, China
| | - Yujin Xiao
- Department of Neurology, Jiaxing Hospital of Traditional Chinese Medicine, Jiaxing, China
| | - Juanyan Chen
- Department of Neurology, Dongyang People's Hospital, Dongyang, China
| | - Haidi Jin
- Department of Neurology, Wanna Medical College, Wuhu, China
| | - Faming Wang
- Department of Neurology, Tiantai People's Hospital of Zhejiang Province, Taizhou, China
| | - Xiaopei Xu
- Department of Neurology, School of Medicine, Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Tao Zang
- Department of Neurology, Tongxiang Second People's Hospital, Tongxiang, China
| | - Liang Zhang
- Department of Neurology, School of Medicine, Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Mengxiong Pan
- Department of Neurology, First People's Hospital of Huzhou, Huzhou, China
| | - Xiaodong Zou
- Department of Neurology, Tongde Hospital of Zhejiang Province, Hangzhou, China
- *Correspondence: Xiaodong Zou
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Yuan S, Peng J, Cai B, Huang Z, Garcia-Esparza AT, Sokaras D, Zhang Y, Giordano L, Akkiraju K, Zhu YG, Hübner R, Zou X, Román-Leshkov Y, Shao-Horn Y. Tunable metal hydroxide-organic frameworks for catalysing oxygen evolution. Nat Mater 2022; 21:673-680. [PMID: 35210585 DOI: 10.1038/s41563-022-01199-0] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 01/13/2022] [Indexed: 05/10/2023]
Abstract
The oxygen evolution reaction is central to making chemicals and energy carriers using electrons. Combining the great tunability of enzymatic systems with known oxide-based catalysts can create breakthrough opportunities to achieve both high activity and stability. Here we report a series of metal hydroxide-organic frameworks (MHOFs) synthesized by transforming layered hydroxides into two-dimensional sheets crosslinked using aromatic carboxylate linkers. MHOFs act as a tunable catalytic platform for the oxygen evolution reaction, where the π-π interactions between adjacent stacked linkers dictate stability, while the nature of transition metals in the hydroxides modulates catalytic activity. Substituting Ni-based MHOFs with acidic cations or electron-withdrawing linkers enhances oxygen evolution reaction activity by over three orders of magnitude per metal site, with Fe substitution achieving a mass activity of 80 A [Formula: see text] at 0.3 V overpotential for 20 h. Density functional theory calculations correlate the enhanced oxygen evolution reaction activity with the MHOF-based modulation of Ni redox and the optimized binding of oxygenated intermediates.
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Affiliation(s)
- Shuai Yuan
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Jiayu Peng
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Bin Cai
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, China
| | - Zhehao Huang
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Angel T Garcia-Esparza
- Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Dimosthenis Sokaras
- Stanford Synchrotron Radiation Light Source, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Yirui Zhang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Livia Giordano
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Karthik Akkiraju
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Yun Guang Zhu
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - René Hübner
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Yuriy Román-Leshkov
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Yang Shao-Horn
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
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43
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Parakrama R, Sidiqi B, Demyan L, Pasha S, Pinto D, Zavadsky T, Zou X, Patruni S, Kapusta A, Standring O, Weiss M, Herman J, King D. P-10 Standardization of a neoadjuvant therapy (NAT) pathway for pancreatic cancer across a geographically large and diverse healthcare system improves patient care and successful completion of NAT. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.102] [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: 11/01/2022] Open
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Luo L, Song N, Huang J, Zou X, Yuan J, Li C, Yang J, Zhou L, Zhang L, Luo S, Gao X. Validity Evaluation of the College Student Physical Literacy Questionnaire. Front Public Health 2022; 10:856659. [PMID: 35692349 PMCID: PMC9178231 DOI: 10.3389/fpubh.2022.856659] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/07/2022] [Indexed: 11/26/2022] Open
Abstract
Background Physical literacy (PL) is an important tool to promote physical activity of individuals, and the level of physical literacy of individuals affects their physical activity behaviors. Currently, the physical fitness of college students in China is a prominent issue, and assessing physical literacy among college students may provide tools and directions to further promote physical fitness and precisely intervene in physical activity behaviors of college students in the future. This study aimed to develop a college student physical literacy questionnaire (CSPLQ) to address the lack of currently available physical literacy assessment tools for Chinese college students. We hoped to collect validity evidence of this questionnaire to measure the validity of the physical literacy self-assessment questionnaire among Chinese university students. Methods An initial pool of items was obtained from existing research instruments, literature, and expert advice. An expert review panel evaluated its content. A subsequent validation process reduced the pool of items. We conducted a validation factor analysis of the CSPLQ using structural equation modeling. The relationship between physical literacy and other variables was also examined using correlation analysis. Results The item content validity index (ICVI) of CSPLQ was 0.70–0.95. The CSPLQ was composed of a total of 38 items across 3 domains (physical and behavioral domain, affective domain, and cognitive domain) and 7 dimensions (motor skills, motor skills, physical activity, perceptions of healthy living, perceptions of physical activity, motivation to engage in physical activity, and confidence to engage in physical activity). The factor validity of the CSPLQ was determined by significant loading of all items on their expected factors, with good data model fit and good stability between two independent samples were demonstrated. Each subscale had a Cronbach α coefficient >0.9 and was strongly correlated with each other. The correlation coefficients between college students' physical literacy and other variables, including athletic ability, physical condition, physical attractiveness, physical fitness, frequency of physical activity, and length of physical activity, all reached a significance level of P < 0.05. Conclusion The CSPLQ has sufficient evidence of validity. The development of the instrument showed evidence of validity for the content, response process, internal structure, and relationships with other variables.
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Affiliation(s)
- Lin Luo
- East China Normal University-Xuhui Postdoctoral Workstation, Shanghai, China
- College of Physical Education, Guizhou Normal University, Guiyang, China
- Basic Education Research Center, Southwest University, Chongqing, China
| | - Naiqing Song
- East China Normal University-Xuhui Postdoctoral Workstation, Shanghai, China
- Basic Education Research Center, Southwest University, Chongqing, China
- *Correspondence: Naiqing Song
| | - Jin Huang
- East China Normal University-Xuhui Postdoctoral Workstation, Shanghai, China
- Jin Huang
| | - Xiaodong Zou
- East China Normal University-Xuhui Postdoctoral Workstation, Shanghai, China
| | - Junfeng Yuan
- College of Physical Education, Guizhou Normal University, Guiyang, China
| | - Chenli Li
- College of Physical Education, Guizhou Normal University, Guiyang, China
| | - Jie Yang
- College of Exercise and Health, Shandong Institute of Physical Education, Rizhao, China
| | - Ling Zhou
- College of Physical Education, Guizhou Normal University, Guiyang, China
| | - Liping Zhang
- College of Physical Education, Guizhou Normal University, Guiyang, China
| | - Shiyan Luo
- Basic Education Research Center, Southwest University, Chongqing, China
| | - Xin Gao
- Basic Education Research Center, Southwest University, Chongqing, China
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Willhammar T, Zou X. An adsorbent with flexible nanoscopic pores. Science 2022; 376:457-458. [PMID: 35482863 DOI: 10.1126/science.abo5434] [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: 11/02/2022]
Abstract
Scanning transmission electron microscopy shows the adaptive pores of a zeolite.
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Affiliation(s)
- Tom Willhammar
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
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Bengtsson VEG, Pacoste L, de la Rosa-Trevin JM, Hofer G, Zou X, Xu H. Scipion-ED: a graphical user interface for batch processing and analysis of 3D ED/MicroED data. J Appl Crystallogr 2022; 55:638-646. [PMID: 35719296 PMCID: PMC9172039 DOI: 10.1107/s1600576722002758] [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: 12/15/2021] [Accepted: 03/10/2022] [Indexed: 12/03/2022] Open
Abstract
The design and usage of Scipion-ED, a graphical user interface program for processing and analysis of three-dimensional electron diffraction (3D ED)/microcrystal electron diffraction (MicroED) data, are presented. A study of the influence of data merging strategies on the ability to resolve unmodelled features of tetragonal lysozyme is included as an illustration of the advantages of Scipion-ED. Three-dimensional electron diffraction (3D ED)/microcrystal electron diffraction (MicroED) techniques are gaining in popularity. However, the data processing often does not fit existing graphical user interface software, instead requiring the use of the terminal or scripting. Scipion-ED, described in this article, provides a graphical user interface and extendable framework for processing of 3D ED/MicroED data. An illustrative project is described, in which multiple 3D ED/MicroED data sets collected on tetragonal lysozyme were processed with DIALS through the Scipion-ED interface. The ability to resolve unmodelled features in the electrostatic potential map was compared between three strategies for merging data sets.
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47
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Zou X, Niu B, Pan L, Yi J. Wire + Arc Additive Manufacturing and Heat Treatment of Super Martensitic Stainless Steel with a Refined Microstructure and Excellent Mechanical Properties. Materials (Basel) 2022; 15:2624. [PMID: 35407955 PMCID: PMC9000792 DOI: 10.3390/ma15072624] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 02/01/2023]
Abstract
Due to the advantages of relatively low cost, increased energy efficiency, increased deposition rate, and the capacity to create medium to large scale components, wire + arc additive manufacturing (WAAM) has gained growing interest. Super martensitic stainless steel (SMSS) combines outstanding strength, ductility, and corrosion resistance, making it a great option for WAAM. In the present work, an SMSS component was successfully produced by WAAM. Additionally, the influence of post-manufactured heat treatment on the microstructural characteristics and mechanical properties of SMSS components was systematically examined. A microstructural analysis of the as-printed and heat-treated samples revealed the formation of typical martensite and a small amount of retained austenite. However, the sample heat-treated by solutionizing at 1050 °C for 1 h followed by aging at 400 °C for 2 h exhibited a finer martensitic structure with an effective grain size of 5.6 μm compared to as-printed sample, leading to an increase in ultimate tensile strength from 1054 ± 6 MPa to 1141 ± 3 MPa with a concomitant increase in elongation from 7.8 ± 0.4% to 12.6 ± 0.2%. Additionally, the fracture morphology of the solution + aging sample demonstrated a more uniform distribution and greater mean size of dimples, indicating better ductility.
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Affiliation(s)
| | | | - Linlin Pan
- Guangdong Provincial Key Laboratory of Advanced Welding Technology, China-Ukraine Institute of Welding, Guangdong Academy of Sciences, 363 Changxing Road, Tianhe District, Guangzhou 510650, China; (X.Z.); (B.N.)
| | - Jianglong Yi
- Guangdong Provincial Key Laboratory of Advanced Welding Technology, China-Ukraine Institute of Welding, Guangdong Academy of Sciences, 363 Changxing Road, Tianhe District, Guangzhou 510650, China; (X.Z.); (B.N.)
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Roslova M, Cybulskis VJ, Davis ME, Zones SI, Zou X, Xie D. Structure Elucidation and Computationally Guided Synthesis of SSZ‐43: A One‐Dimensional 12‐Ring Zeolite with Unique Sinusoidal Channels. Angew Chem Int Ed Engl 2022; 61:e202115087. [PMID: 35098633 PMCID: PMC9306729 DOI: 10.1002/anie.202115087] [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: 11/07/2021] [Indexed: 11/11/2022]
Abstract
The structure of zeolite SSZ‐43 was determined by 3D electron diffraction, synchrotron X‐ray powder diffraction, and high‐resolution transmission electron microscopy. The SSZ‐43 framework forms one‐dimensional, sinusoidal 12‐ring channels from 5461butterfly units commonly found in other zeolites, but with unique 6.5×6.5 Å apertures and 12‐ring 6.5×8.9 Å windows perpendicular to the channels. SSZ‐43 crystals are intergrowths of two polytypes: ≈90 % orthorhombic polytype A with ABAB stacking of the 12‐rings, and ≈10 % monoclinic polytype B with ABCABC stacking. Molecular modeling performed on the idealized Si‐SSZ‐43 structure along with empirical relationships for zeolite selectivity in boron‐ and aluminum‐containing synthesis gels were used in a combined approach to design new di‐quaternary ammonium organic structure‐directing agents (OSDAs). Experimental trials demonstrated that the new OSDAs produced SSZ‐43 over a broader range of compositions than previous mono‐quaternary OSDAs.
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Affiliation(s)
- Maria Roslova
- Department of Materials and Environmental Chemistry Stockholm University 106 91 Stockholm Sweden
| | - Viktor J. Cybulskis
- Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Mark E. Davis
- Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Stacey I. Zones
- Chevron Technical Center 100 Chevron Way Richmond CA 94801 USA
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry Stockholm University 106 91 Stockholm Sweden
| | - Dan Xie
- Chevron Technical Center 100 Chevron Way Richmond CA 94801 USA
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Abstract
Cholesterol homeostasis is related to multiple diseases in humans, including cardiovascular disease, cancer, and neurodegenerative and hepatic diseases. The cholesterol levels in cells are balanced dynamically by uptake, biosynthesis, transport, distribution, esterification, and export. In this review, we focus on de novo cholesterol synthesis, cholesterol synthesis regulation, and intracellular cholesterol trafficking. In addition, the progression of lipid transfer proteins (LTPs) at multiple contact sites between organelles is considered.
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Affiliation(s)
- Qingyang Shi
- Center of Reproductive Medicine and Center of Prenatal Diagnosis, The First Hospital, Jilin University, Changchun, China
| | - Jiahuan Chen
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University, Changchun, China
| | - Xiaodong Zou
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University, Changchun, China
| | - Xiaochun Tang
- Jilin Provincial Key Laboratory of Animal Embryo Engineering, College of Animal Sciences, Jilin University, Changchun, China
- Chongqing Research Institute of Jilin University, Chongqing, China
- *Correspondence: Xiaochun Tang,
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50
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Yuan N, Gudmundsson A, Gustafson KPJ, Oschmann M, Tai CW, Persson I, Zou X, Verho O, Bajnóczi ÉG, Bäckvall JE. Correction to “Investigation of the Deactivation and Reactivation Mechanism of a Heterogeneous Palladium(II) Catalyst in the Cycloisomerization of Acetylenic Acids by In Situ XAS”. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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