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Chi H, Yan X, Tong W, Tian Q. SpyGlass guided PDT for advanced intraductal papillary mucinous neoplasm of the bile tract: A case report and literature review. Photodiagnosis Photodyn Ther 2024; 46:104098. [PMID: 38642727 DOI: 10.1016/j.pdpdt.2024.104098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/13/2024] [Accepted: 04/18/2024] [Indexed: 04/22/2024]
Abstract
Intraductal papillary mucinous neoplasm of the bile tract is a rare biliary tumor characterized by mucin growth within the bile duct. In the early stages, it often presents without significant obstruction, this often leads to its discovery in the advanced stages. We report a case of a 63-year-old female with an intraductal papillary mucinous neoplasm of the bile duct (IPMN-B). The patient had a history of intrahepatic bile duct stones and biliary ascariasis. She gradually developed symptoms such as jaundice and intermittent fever before admission, and a bile duct biopsy confirmed the diagnosis of IPMN-B. Currently, endoscopic photodynamic therapy (PDT) is considered an effective treatment for bile duct cancer. In this case, we performed two sessions of PDT guided by SpyGlass. The patient experienced complete remission postoperatively, and there has been no evidence of tumor recurrence or metastasis in the three years following the procedure.
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Affiliation(s)
- Hao Chi
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin 300192, China
| | - Xiaodong Yan
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin 300192, China
| | - Wen Tong
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin 300192, China
| | - Qing Tian
- Department of Hepatobiliary Pancreatic Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China.
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2
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Liu ZR, Zhang YM, Cui ZL, Tong W. Effects of thrombopoietin pre-treatment on peri-liver transplantation thrombocytopenia in a mouse model of cirrhosis with hypersplenism. World J Gastrointest Surg 2023; 15:2115-2122. [PMID: 37969704 PMCID: PMC10642473 DOI: 10.4240/wjgs.v15.i10.2115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/05/2023] [Accepted: 08/25/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND During cirrhosis, the liver is impaired and unable to synthesize and clear thrombopoietin properly. At the same time, the spleen assumes the function of hemofiltration and storage due to liver dysfunction, resulting in hypersplenism and excessive removal of platelets in the spleen, further reducing platelet count. When liver function is decompensated in cirrhotic patients, the decrease of thrombopoietin (TPO) synthesis is the main reason for the decrease of new platelet production. This change of TPO leads to thrombocytopenia and bleeding tendency in cirrhotic patients with hypersplenism. AIM To investigate the clinical efficacy of recombinant human TPO (rhTPO) in the treatment of perioperative thrombocytopenia during liver transplantation in cirrhotic mice with hypersplenism. METHODS C57BL/6J mice and TPO receptor-deficient mice were used to establish models of cirrhosis with hypersplenism. Subsequently, these mice underwent orthotopic liver transplantation (OLT). The mice in the experimental group were given rhTPO treatment for 3 consecutive days before surgery and 5 consecutive days after surgery, while the mice in the control group received the same dose of saline at the same frequency. Differences in liver function and platelet counts were determined between the experimental and control groups. Enzyme-linked immunosorbent assay was used to assess the expression of TPO and TPO receptor (c-Mpl) in the blood. RESULTS Preoperative administration of rhTPO significantly improved peri-OLT thrombocytopenia in mice with cirrhosis and hypersplenism. Blocking the expression of TPO receptors exacerbated peri-OLT thrombocytopenia. The concentration of TPO decreased while the concentration of c-Mpl increased in compensation in the mouse model of cirrhosis with hypersplenism. TPO pre-treatment significantly increased the postoperative TPO concentration in mice, which in turn led to a decrease in the c-Mpl concentration. TPO pre-treatment also significantly enhanced the Janus kinase (Jak)/signal transducers and activators of transcription pathway protein expressions in bone marrow stem cells of the C57BL/6J mice. Moreover, the administration of TPO, both before and after surgery, regulated the levels of biochemical indicators, such as alanine aminotransferase, alkaline phosphatase, and aspartate aminotransferase in the C57BL/6J mice. CONCLUSION Pre-treatment with TPO not only exhibited therapeutic effects on perioperative thrombocytopenia in the mice with cirrhosis and hypersplenism, who underwent liver transplantation but also significantly enhanced the perioperative liver function.
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Affiliation(s)
- Zi-Rong Liu
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, Tianjin 300070, China
| | - Ya-Min Zhang
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, Tianjin 300070, China
| | - Zi-Lin Cui
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, Tianjin 300070, China
| | - Wen Tong
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, Tianjin 300070, China
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3
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Furuhama A, Kitazawa A, Yao J, Matos Dos Santos CE, Rathman J, Yang C, Ribeiro JV, Cross K, Myatt G, Raitano G, Benfenati E, Jeliazkova N, Saiakhov R, Chakravarti S, Foster RS, Bossa C, Battistelli CL, Benigni R, Sawada T, Wasada H, Hashimoto T, Wu M, Barzilay R, Daga PR, Clark RD, Mestres J, Montero A, Gregori-Puigjané E, Petkov P, Ivanova H, Mekenyan O, Matthews S, Guan D, Spicer J, Lui R, Uesawa Y, Kurosaki K, Matsuzaka Y, Sasaki S, Cronin MTD, Belfield SJ, Firman JW, Spînu N, Qiu M, Keca JM, Gini G, Li T, Tong W, Hong H, Liu Z, Igarashi Y, Yamada H, Sugiyama KI, Honma M. Evaluation of QSAR models for predicting mutagenicity: outcome of the Second Ames/QSAR international challenge project. SAR QSAR Environ Res 2023; 34:983-1001. [PMID: 38047445 DOI: 10.1080/1062936x.2023.2284902] [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] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 11/13/2023] [Indexed: 12/05/2023]
Abstract
Quantitative structure-activity relationship (QSAR) models are powerful in silico tools for predicting the mutagenicity of unstable compounds, impurities and metabolites that are difficult to examine using the Ames test. Ideally, Ames/QSAR models for regulatory use should demonstrate high sensitivity, low false-negative rate and wide coverage of chemical space. To promote superior model development, the Division of Genetics and Mutagenesis, National Institute of Health Sciences, Japan (DGM/NIHS), conducted the Second Ames/QSAR International Challenge Project (2020-2022) as a successor to the First Project (2014-2017), with 21 teams from 11 countries participating. The DGM/NIHS provided a curated training dataset of approximately 12,000 chemicals and a trial dataset of approximately 1,600 chemicals, and each participating team predicted the Ames mutagenicity of each trial chemical using various Ames/QSAR models. The DGM/NIHS then provided the Ames test results for trial chemicals to assist in model improvement. Although overall model performance on the Second Project was not superior to that on the First, models from the eight teams participating in both projects achieved higher sensitivity than models from teams participating in only the Second Project. Thus, these evaluations have facilitated the development of QSAR models.
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Affiliation(s)
- A Furuhama
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
| | - A Kitazawa
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
| | - J Yao
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials (Chinese Academy of Sciences), Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences (SIOC, CAS), Shanghai, China
| | - C E Matos Dos Santos
- Department of Computational Toxicology and In Silico Innovations, Altox Ltd, São Paulo-SP, Brazil
| | - J Rathman
- MN-AM, Nuremberg, Germany/Columbus, OH, USA
| | - C Yang
- MN-AM, Nuremberg, Germany/Columbus, OH, USA
| | | | - K Cross
- In Silico Department, Instem, Conshohocken, PA, USA
| | - G Myatt
- In Silico Department, Instem, Conshohocken, PA, USA
| | - G Raitano
- Laboratory of Environmental Toxicology and Chemistry, Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS (IRFMN), Milano, Italy
| | - E Benfenati
- Laboratory of Environmental Toxicology and Chemistry, Department of Environmental Health Sciences, Istituto di Ricerche Farmacologiche Mario Negri IRCCS (IRFMN), Milano, Italy
| | | | | | | | | | - C Bossa
- Environment and Health Department, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - C Laura Battistelli
- Environment and Health Department, Istituto Superiore di Sanità (ISS), Rome, Italy
| | - R Benigni
- Environment and Health Department, Istituto Superiore di Sanità (ISS), Rome, Italy
- Alpha-PreTox, Rome, Italy
| | - T Sawada
- Faculty of Regional Studies, Gifu University, Gifu, Japan
- xenoBiotic Inc, Gifu, Japan
| | - H Wasada
- Faculty of Regional Studies, Gifu University, Gifu, Japan
| | - T Hashimoto
- Faculty of Regional Studies, Gifu University, Gifu, Japan
| | - M Wu
- Massachusetts Institute of Technology, Cambridge, MA, USA
| | - R Barzilay
- Massachusetts Institute of Technology, Cambridge, MA, USA
| | - P R Daga
- Simulations Plus, Lancaster, CA, USA
| | - R D Clark
- Simulations Plus, Lancaster, CA, USA
| | | | | | | | - P Petkov
- LMC - Bourgas University, Bourgas, Bulgaria
| | - H Ivanova
- LMC - Bourgas University, Bourgas, Bulgaria
| | - O Mekenyan
- LMC - Bourgas University, Bourgas, Bulgaria
| | - S Matthews
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - D Guan
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - J Spicer
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - R Lui
- Computational Pharmacology & Toxicology Laboratory, Discipline of Pharmacology, School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Y Uesawa
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - K Kurosaki
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - Y Matsuzaka
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - S Sasaki
- Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo, Japan
| | - M T D Cronin
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - S J Belfield
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - J W Firman
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - N Spînu
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - M Qiu
- Evergreen AI, Inc, Toronto, Canada
| | - J M Keca
- Evergreen AI, Inc, Toronto, Canada
| | - G Gini
- Department of Electronics, Information and Bioengineering (DEIB), Politecnico di Milano, Milano, Italy
| | - T Li
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
| | - W Tong
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
| | - H Hong
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
| | - Z Liu
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, U.S. Food and Drug Administration (NCTR/FDA), Jefferson, AR, USA
- Integrative Toxicology, Nonclinical Drug Safety, Boehringer Ingelheim Pharmaceuticals, Inc, Ridgefield, CT, USA
| | - Y Igarashi
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - H Yamada
- Artificial Intelligence Center for Health and Biomedical Research, National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Osaka, Japan
| | - K-I Sugiyama
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
| | - M Honma
- Division of Genetics and Mutagenesis (DGM), National Institute of Health Sciences (NIHS), Kawasaki, Japan
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Xia C, Deng J, Tong W, Chen J, Xiang Z, Yang X, Zhu B, Sun P, Li J, Pan Y, Zhu Y. Evaluation of the Antioxidant Potential of Citrus medica from Different Geographical Regions and Characterization of Phenolic Constituents by LC-MS. ACS Omega 2023; 8:32526-32535. [PMID: 37720798 PMCID: PMC10500571 DOI: 10.1021/acsomega.3c02861] [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] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 08/15/2023] [Indexed: 09/19/2023]
Abstract
The varying antioxidant potential of Citrus medica associated with different geographical regions makes the evaluation of C. medica for natural antioxidants essential. This work aimed to compare the antioxidant potential of the phenolic constituents from different geographical regions. The chemical compositions were characterized by ultra-high-performance liquid chromatography (UPLC) coupled with mass spectrometry (MS). A total of 67 compounds including 29 coumarin derivatives and 38 flavonoids were tentatively identified by UPLC-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS). To evaluate the quality of C. medica from seven different geographical regions, water and 80% methanol fractions were subjected to quantitative analysis. Antioxidant potentials were determined by 2,2-diphenyl-1-picrylhydrazyl, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), iron chelation, and reduction methods. The samples collected from Sichuan province showed the highest content of total phenolic compounds. Combined with antioxidant results, the sample from Sichuan province presented good antioxidant activity. This study also showed that total phenolic compounds significantly contributed to the antioxidant activities (2,2-azinobis(3-ethyl-benzothiazoline-6-sulphonic acid) and radical scavenging activity) of C. medica samples (p < 0.01). These results provided chemical information and potential antioxidant value for further research, providing ideal evidence for the quality evaluation and exploitation of the source.
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Affiliation(s)
- Chen Xia
- Institute
of Agro-Products Processing Science and Technology, Sichuan Academy of Agricultural Sciences, 60 Shizishan Road, Chengdu, Sichuan 610066, China
| | - Junlin Deng
- Institute
of Agro-Products Processing Science and Technology, Sichuan Academy of Agricultural Sciences, 60 Shizishan Road, Chengdu, Sichuan 610066, China
| | - Wen Tong
- Industrial
Crop Research Institute, Sichuan Academy
of Agriculture Sciences, Chengdu 610300, Sichuan, China
| | - Jian Chen
- Institute
of Agro-Products Processing Science and Technology, Sichuan Academy of Agricultural Sciences, 60 Shizishan Road, Chengdu, Sichuan 610066, China
| | - Zhuoya Xiang
- Institute
of Agro-Products Processing Science and Technology, Sichuan Academy of Agricultural Sciences, 60 Shizishan Road, Chengdu, Sichuan 610066, China
| | - Xing Yang
- Institute
of Agro-Products Processing Science and Technology, Sichuan Academy of Agricultural Sciences, 60 Shizishan Road, Chengdu, Sichuan 610066, China
| | - Boyu Zhu
- Institute
of Agro-Products Processing Science and Technology, Sichuan Academy of Agricultural Sciences, 60 Shizishan Road, Chengdu, Sichuan 610066, China
| | - Pei Sun
- Industrial
Crop Research Institute, Sichuan Academy
of Agriculture Sciences, Chengdu 610300, Sichuan, China
| | - Juan Li
- Institute
of Agro-Products Processing Science and Technology, Sichuan Academy of Agricultural Sciences, 60 Shizishan Road, Chengdu, Sichuan 610066, China
| | - Yu Pan
- State
Key Laboratory of Quality Research in Chinese Medicine, Macau
University of Science and Technology, Macau 999078, China
| | - Yongqing Zhu
- Institute
of Agro-Products Processing Science and Technology, Sichuan Academy of Agricultural Sciences, 60 Shizishan Road, Chengdu, Sichuan 610066, China
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5
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Garrud TAC, Teulings NEWD, Niu Y, Skeffington KL, Beck C, Itani N, Conlon FG, Botting KJ, Nicholas LM, Tong W, Derks JB, Ozanne SE, Giussani DA. Molecular mechanisms underlying adverse effects of dexamethasone and betamethasone in the developing cardiovascular system. FASEB J 2023; 37:e22887. [PMID: 37132324 PMCID: PMC10946807 DOI: 10.1096/fj.202200676rr] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 03/02/2023] [Accepted: 03/09/2023] [Indexed: 05/04/2023]
Abstract
Antenatal glucocorticoids accelerate fetal lung maturation and reduce mortality in preterm babies but can trigger adverse effects on the cardiovascular system. The mechanisms underlying off-target effects of the synthetic glucocorticoids mostly used, Dexamethasone (Dex) and Betamethasone (Beta), are unknown. We investigated effects of Dex and Beta on cardiovascular structure and function, and underlying molecular mechanism using the chicken embryo, an established model system to isolate effects of therapy on the developing heart and vasculature, independent of effects on the mother or placenta. Fertilized eggs were treated with Dex (0.1 mg kg-1 ), Beta (0.1 mg kg-1 ), or water vehicle (Control) on embryonic day 14 (E14, term = 21 days). At E19, biometry, cardiovascular function, stereological, and molecular analyses were determined. Both glucocorticoids promoted growth restriction, with Beta being more severe. Beta compared with Dex induced greater cardiac diastolic dysfunction and also impaired systolic function. While Dex triggered cardiomyocyte hypertrophy, Beta promoted a decrease in cardiomyocyte number. Molecular changes of Dex on the developing heart included oxidative stress, activation of p38, and cleaved caspase 3. In contrast, impaired GR downregulation, activation of p53, p16, and MKK3 coupled with CDK2 transcriptional repression linked the effects of Beta on cardiomyocyte senescence. Beta but not Dex impaired NO-dependent relaxation of peripheral resistance arteries. Beta diminished contractile responses to potassium and phenylephrine, but Dex enhanced peripheral constrictor reactivity to endothelin-1. We conclude that Dex and Beta have direct differential detrimental effects on the developing cardiovascular system.
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Affiliation(s)
- Tessa A. C. Garrud
- Department of Physiology, Development and NeuroscienceUniversity of CambridgeCambridgeUK
| | - Noor E. W. D. Teulings
- Institute of Metabolic Science‐Metabolic Research Laboratories, MRC Metabolic Diseases UnitUniversity of Cambridge, Addenbrooke's HospitalCambridgeUK
| | - Youguo Niu
- Department of Physiology, Development and NeuroscienceUniversity of CambridgeCambridgeUK
| | - Katie L. Skeffington
- Department of Physiology, Development and NeuroscienceUniversity of CambridgeCambridgeUK
| | - Christian Beck
- Department of Physiology, Development and NeuroscienceUniversity of CambridgeCambridgeUK
| | - Nozomi Itani
- Department of Physiology, Development and NeuroscienceUniversity of CambridgeCambridgeUK
| | - Fiona G. Conlon
- Department of Physiology, Development and NeuroscienceUniversity of CambridgeCambridgeUK
| | - Kimberley J. Botting
- Department of Physiology, Development and NeuroscienceUniversity of CambridgeCambridgeUK
| | - Lisa M. Nicholas
- Institute of Metabolic Science‐Metabolic Research Laboratories, MRC Metabolic Diseases UnitUniversity of Cambridge, Addenbrooke's HospitalCambridgeUK
| | - Wen Tong
- Department of Physiology, Development and NeuroscienceUniversity of CambridgeCambridgeUK
| | - Jan B. Derks
- Department of Perinatal MedicineUniversity Medical CentreUtrechtNetherlands
| | - Susan E. Ozanne
- Institute of Metabolic Science‐Metabolic Research Laboratories, MRC Metabolic Diseases UnitUniversity of Cambridge, Addenbrooke's HospitalCambridgeUK
- BHF Cardiovascular Centre for Research ExcellenceUniversity of CambridgeCambridgeUK
- Strategic Research Initiative in ReproductionUniversity of CambridgeCambridgeUK
- Centre for Trophoblast ResearchUniversity of CambridgeCambridgeUK
| | - Dino A. Giussani
- Department of Physiology, Development and NeuroscienceUniversity of CambridgeCambridgeUK
- BHF Cardiovascular Centre for Research ExcellenceUniversity of CambridgeCambridgeUK
- Strategic Research Initiative in ReproductionUniversity of CambridgeCambridgeUK
- Centre for Trophoblast ResearchUniversity of CambridgeCambridgeUK
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Buckley D, Aspinall D, Carroll R, Hayward C, Kotlyar E, Jabbour A, Bart N, Keogh A, MacDonald P, Muthiah K, Tong W. Routine Donor Specific Antibody Monitoring in Heart Transplant Recipients - Is There a Role? J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1108] [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: 04/05/2023] Open
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7
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Tardo D, Carlos L, Burrows F, Carroll R, Tong W, Patel P, Taverniti A, Wiltshire S, Conte S, Parvar S, Emmanuel S, Grealy R, Hayward C, Bart N, Kotlyar E, Jabbour A, Keogh A, Patel J, Jansz P, Macdonald P, Muthiah K. Combined Plasmapheresis and Complement Inhibition in a Highly Allosensitized Cardiac Transplant Recipient. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1227] [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: 04/05/2023] Open
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8
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Zheng H, Wang Q, Fu T, Wei Z, Ye J, Huang B, Li C, Liu B, Zhang A, Li F, Gao F, Tong W. Robotic versus laparoscopic left colectomy with complete mesocolic excision for left-sided colon cancer: a multicentre study with propensity score matching analysis. Tech Coloproctol 2023:10.1007/s10151-023-02781-7. [PMID: 36964884 DOI: 10.1007/s10151-023-02781-7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 02/28/2023] [Indexed: 03/26/2023]
Abstract
BACKGROUND Robotic surgery for right-sided colon and rectal cancer has rapidly increased; however, there is limited evidence in the literature of advantages of robotic left colectomy (RLC) for left-sided colon cancer. The purpose of this study was to compare the outcomes of RLC versus laparoscopic left colectomy (LLC) with complete mesocolic excision (CME) for left-sided colon cancer. METHODS Patients who had RLC or LLC with CME for left-sided colon cancer at 5 hospitals in China between January 2014 and April 2022 were included. A one-to-one propensity score matched analysis was performed to decrease confounding. The primary outcome was postoperative complications occurring within 30 days of surgery. Secondary outcomes were disease-free survival, overall survival and the number of harvested lymph nodes. RESULTS A total of 292 patients (187 males; median age 61.0 [20.0-85.0] years) were eligible for this study, and propensity score matching yielded 102 patients in each group. The clinical-pathological characteristics were well-matched between groups. The two groups did not differ in estimated blood loss, conversion to open rate, time to first flatus, reoperation rate, or postoperative length of hospital stay (p > 0.05). RLC was associated with a longer operation time (192.9 ± 53.2 vs. 168.9 ± 52.8 minutes, p=0.001). The incidence of postoperative complications did not differ between the RLC and LLC groups (18.6% vs. 17.6%, p = 0.856). The total number of lymph nodes harvested in the RLC group was higher than that in the LLC group (15.7 ± 8.3 vs. 12.1 ± 5.9, p< 0.001). There were no significant differences in 3-year and 5-year overall survival or 3-year and 5-year disease-free survival. CONCLUSIONS Compared to laparoscopic surgery, RLC with CME for left-sided colon cancer was found to be associated with higher numbers of lymph nodes harvested and similar postoperative complications and long-term survival outcomes.
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Affiliation(s)
- H Zheng
- Gastric and Colorectal Surgery Division, Department of General Surgery, Army Medical Center (Daping Hospital), Army Medical University, No. 10, Changjiang Branch Road, Daping, Yuzhong District, Chongqing, China
| | - Q Wang
- Department of Gastrocolorectal Surgery, The First Hospital of Jilin University, Changchun, China
| | - T Fu
- Department of Gastrointestinal Surgery II, Renmin Hospital of Wuhan University, Wuhan, China
| | - Z Wei
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - J Ye
- Department of Gastrointestinal Surgery, The People's Hospital of Shapingba District, Chongqing, China
| | - B Huang
- Gastric and Colorectal Surgery Division, Department of General Surgery, Army Medical Center (Daping Hospital), Army Medical University, No. 10, Changjiang Branch Road, Daping, Yuzhong District, Chongqing, China
| | - C Li
- Gastric and Colorectal Surgery Division, Department of General Surgery, Army Medical Center (Daping Hospital), Army Medical University, No. 10, Changjiang Branch Road, Daping, Yuzhong District, Chongqing, China
| | - B Liu
- Gastric and Colorectal Surgery Division, Department of General Surgery, Army Medical Center (Daping Hospital), Army Medical University, No. 10, Changjiang Branch Road, Daping, Yuzhong District, Chongqing, China
| | - A Zhang
- Gastric and Colorectal Surgery Division, Department of General Surgery, Army Medical Center (Daping Hospital), Army Medical University, No. 10, Changjiang Branch Road, Daping, Yuzhong District, Chongqing, China
| | - F Li
- Gastric and Colorectal Surgery Division, Department of General Surgery, Army Medical Center (Daping Hospital), Army Medical University, No. 10, Changjiang Branch Road, Daping, Yuzhong District, Chongqing, China.
| | - F Gao
- Department of Colorectal Surgery, 940th Hospital of Joint Logistics Support force of PLA, Lanzhou, China.
| | - W Tong
- Gastric and Colorectal Surgery Division, Department of General Surgery, Army Medical Center (Daping Hospital), Army Medical University, No. 10, Changjiang Branch Road, Daping, Yuzhong District, Chongqing, China.
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9
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Tong W, Ganguly E, Villalobos-Labra R, Quon A, Spaans F, Giussani DA, Davidge ST. Sex-Specific Differences in the Placental Unfolded Protein Response in a Rodent Model of Gestational Hypoxia. Reprod Sci 2022; 30:1994-1997. [PMID: 36574145 DOI: 10.1007/s43032-022-01157-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 12/19/2022] [Indexed: 12/28/2022]
Abstract
Gestational hypoxia is a major contributor to fetal growth restriction (FGR) and perinatal morbidity and mortality and has been closely linked to the activation of the unfolded protein response (UPR) in the placenta. Recent studies on adverse pregnancy conditions show differential adaptive responses in pregnancies carrying male or female fetuses. Here, we use an established rat model of hypoxic pregnancy and FGR to test the hypothesis that chronic hypoxia promotes sexually dimorphic activation of the placental UPR. Our data showed that gestational hypoxia increased glucose regulatory protein 78 (GRP78) expression in male placentae, increased activating transcription factor 6 activation (ATF6) in female placentae, and did not induce changes in other UPR markers. In addition, gestational hypoxia reduced fetal weight only in males and ATF6 activation correlated with an increase in the fetal crown-rump-length/body weight ratio only in females. These results suggest sex-specific divergence in the placental adaptive response to gestational hypoxia, which may account for the sexual dimorphism observed in placental function and pregnancy outcomes in complicated pregnancies.
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Affiliation(s)
- Wen Tong
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Esha Ganguly
- Department of Obstetrics and Gynaecology, University of Alberta, Edmonton, Alberta, Canada
- Department of Physiology, University of Alberta, Edmonton, Alberta, Canada
- Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Roberto Villalobos-Labra
- Department of Obstetrics and Gynaecology, University of Alberta, Edmonton, Alberta, Canada
- Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Anita Quon
- Department of Obstetrics and Gynaecology, University of Alberta, Edmonton, Alberta, Canada
- Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Floor Spaans
- Department of Obstetrics and Gynaecology, University of Alberta, Edmonton, Alberta, Canada
- Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Dino A Giussani
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
- Centre for Trophoblast Research, University of Cambridge, Cambridge, UK
| | - Sandra T Davidge
- Department of Obstetrics and Gynaecology, University of Alberta, Edmonton, Alberta, Canada.
- Department of Physiology, University of Alberta, Edmonton, Alberta, Canada.
- Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada.
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Ge X, Guo M, Li M, Zhang S, Qiang J, Zhu L, Cheng L, Li W, Wang Y, Yu J, Yin Z, Chen F, Tong W, Lei P. Potential blood biomarkers for chronic traumatic encephalopathy: The multi-omics landscape of an observational cohort. Front Aging Neurosci 2022; 14:1052765. [PMID: 36420308 PMCID: PMC9676976 DOI: 10.3389/fnagi.2022.1052765] [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: 09/24/2022] [Accepted: 10/18/2022] [Indexed: 11/09/2022] Open
Abstract
Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease associated with exposure to repetitive head impacts, which is susceptible in elderly people with declined mobility, athletes of full contact sports, military personnel and victims of domestic violence. It has been pathologically diagnosed in brain donors with a history of repetitive mild traumatic brain injury (rmTBI), but cannot be clinically diagnosed for a long time. By the continuous efforts by neuropathologists, neurologists and neuroscientists in recent 10 years, an expert consensus for the diagnostic framework of CTE was proposed in 2021 funded by the National Institute of Neurological Disorders and Stroke. The new consensus contributes to facilitating research in the field. However, it still needs to incorporate in vivo biomarkers to further refine and validate the clinical diagnostic criteria. From this, a single-center, observational cohort study has been being conducted by Tianjin Medical University General Hospital since 2021. As a pilot study of this clinical trial, the present research recruited 12 pairs of gender- and age-matched rmTBI patients with healthy subjects. Their blood samples were collected for exosome isolation, and multi-omics screening to explore potential diagnostic biomarkers in blood and its exosomes. The expression level of CHL1 protein, KIF2A mRNA, LIN7C mRNA, miR-297, and miR-1183 in serum and exosomes were found to be differentially expressed between groups. Besides, serum and exosomal CHL1, KIF2A, and miR-1183, as well as exosomal miR-297 were further verified as potential biomarkers for CTE by low-throughput assays. They are expected to contribute to establishing a novel set of CTE diagnostic signatures with classic neurodegenerative indicators in our future study, thereby updating the consensus diagnostic criteria for CTE by incorporating new evidence of the in vivo biomarkers.
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Affiliation(s)
- Xintong Ge
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Geriatrics Institute, Tianjin, China
- Key Laboratory of Injuries, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China
| | - Mengtian Guo
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Geriatrics Institute, Tianjin, China
| | - Meimei Li
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Geriatrics Institute, Tianjin, China
| | - Shishuang Zhang
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Geriatrics Institute, Tianjin, China
| | - Junlian Qiang
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
| | - Luoyun Zhu
- Department of Medical Examination, Tianjin Medical University General Hospital, Tianjin, China
| | - Lu Cheng
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Geriatrics Institute, Tianjin, China
| | - Wenzhu Li
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Geriatrics Institute, Tianjin, China
| | - Yan Wang
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Geriatrics Institute, Tianjin, China
| | - Jinwen Yu
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Geriatrics Institute, Tianjin, China
| | - Zhenyu Yin
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Geriatrics Institute, Tianjin, China
| | - Fanglian Chen
- Key Laboratory of Injuries, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China
| | - Wen Tong
- Weightlifting, Wrestling, Judo, Boxing and Taekwondo Sports Management Center of Tianjin Sports Bureau, Tianjin, China
| | - Ping Lei
- Haihe Laboratory of Cell Ecosystem, Department of Geriatrics, Tianjin Medical University General Hospital, Tianjin, China
- Tianjin Geriatrics Institute, Tianjin, China
- Key Laboratory of Injuries, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Variations and Regeneration of Nervous System, Tianjin Neurological Institute, Tianjin, China
- *Correspondence: Ping Lei,
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11
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Abstract
The prevalence of maternal obesity is increasing at an alarming rate, and is providing a major challenge for obstetric practice. Adverse effects on maternal and fetal health are mediated by complex interactions between metabolic, inflammatory, and oxidative stress signaling in the placenta. Endoplasmic reticulum (ER) stress and activation of the unfolded protein response (UPR) are common downstream pathways of cell stress, and there is evidence that this conserved homeostatic response may be a key mediator in the pathogenesis of placental dysfunction. We summarize the current literature on the placental cellular and molecular changes that occur in obese women. A special focus is cast onto placental ER stress in obese pregnancy, which may provide a novel link for future investigation.
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Affiliation(s)
| | - Wen Tong
- Department of Physiology, Development, and Neuroscience, University of Cambridge, Cambridge CB2 3EL, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK; Cambridge Strategic Research Initiative in Reproduction, Cambridge CB2 3EL, Cambridge UK.
| | - Dino A Giussani
- Department of Physiology, Development, and Neuroscience, University of Cambridge, Cambridge CB2 3EL, UK; Centre for Trophoblast Research, University of Cambridge, Cambridge CB2 3EG, UK; Cambridge Strategic Research Initiative in Reproduction, Cambridge CB2 3EL, Cambridge UK; Cambridge Cardiovascular Centre for Research Excellence, Cambridge CB2 0QQ, UK.
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12
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Verheijen M, Meier M, Ochoteco J, Gant T, Tong W, Yauk C, Caiment F. P20-03 R-ODAF: an omics data analysis framework for regulatory application. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.669] [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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13
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Tong W, Allison BJ, Brain KL, Patey OV, Niu Y, Botting KJ, Ford SG, Garrud TA, Wooding PF, Shaw CJ, Lyu Q, Zhang L, Ma J, Cindrova-Davies T, Yung HW, Burton GJ, Giussani DA. Chronic Hypoxia in Ovine Pregnancy Recapitulates Physiological and Molecular Markers of Preeclampsia in the Mother, Placenta, and Offspring. Hypertension 2022; 79:1525-1535. [PMID: 35534925 PMCID: PMC9172902 DOI: 10.1161/hypertensionaha.122.19175] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/20/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Preeclampsia continues to be a prevalent pregnancy complication and underlying mechanisms remain controversial. A common feature of preeclampsia is utero-placenta hypoxia. In contrast to the impact of hypoxia on the placenta and fetus, comparatively little is known about the maternal physiology. METHODS We adopted an integrative approach to investigate the inter-relationship between chronic hypoxia during pregnancy with maternal, placental, and fetal outcomes, common in preeclampsia. We exploited a novel technique using isobaric hypoxic chambers and in vivo continuous cardiovascular recording technology for measurement of blood pressure in sheep and studied the placental stress in response to hypoxia at cellular and subcellular levels. RESULTS Chronic hypoxia in ovine pregnancy promoted fetal growth restriction (FGR) with evidence of fetal brain-sparing, increased placental hypoxia-mediated oxidative damage, and activated placental stress response pathways. These changes were linked with dilation of the placental endoplasmic reticulum (ER) cisternae and increased placental expression of the antiangiogenic factors sFlt-1 (soluble fms-like tyrosine kinase 1) and sEng (soluble endoglin), combined with a shift towards an angiogenic imbalance in the maternal circulation. Chronic hypoxia further led to an increase in uteroplacental vascular resistance and the fall in maternal blood pressure with advancing gestation measured in normoxic pregnancy did not occur in hypoxic pregnancy. CONCLUSIONS Therefore, we show in an ovine model of sea-level adverse pregnancy that chronic hypoxia recapitulates physiological and molecular features of preeclampsia in the mother, placenta, and offspring.
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Affiliation(s)
- Wen Tong
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- Centre for Trophoblast Research, University of Cambridge, United Kingdom (W.T., Y.N., K.J.B., T.A.G., P.G.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
| | - Beth J. Allison
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
| | - Kirsty L. Brain
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
| | - Olga V. Patey
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
| | - Youguo Niu
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- Centre for Trophoblast Research, University of Cambridge, United Kingdom (W.T., Y.N., K.J.B., T.A.G., P.G.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- BHF Cardiovascular Centre for Research Excellence, University of Cambridge, United Kingdom (Y.N., K.J.B., D.A.S.)
- Department of Aerospace Physiology, Fourth Military Medical University, Xi’an, China (Y.N., Q.L., L.Z., J.M., D.A.G.)
| | - Kimberley J. Botting
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- Centre for Trophoblast Research, University of Cambridge, United Kingdom (W.T., Y.N., K.J.B., T.A.G., P.G.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- BHF Cardiovascular Centre for Research Excellence, University of Cambridge, United Kingdom (Y.N., K.J.B., D.A.S.)
| | - Sage G. Ford
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
| | - Tessa A. Garrud
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- Centre for Trophoblast Research, University of Cambridge, United Kingdom (W.T., Y.N., K.J.B., T.A.G., P.G.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
| | - Peter F.B. Wooding
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- Centre for Trophoblast Research, University of Cambridge, United Kingdom (W.T., Y.N., K.J.B., T.A.G., P.G.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
| | - Caroline J. Shaw
- Department of Metabolism, Digestion and Reproduction, Imperial College London, United Kingdom (C.J.S.)
| | - Qiang Lyu
- Department of Aerospace Physiology, Fourth Military Medical University, Xi’an, China (Y.N., Q.L., L.Z., J.M., D.A.G.)
| | - Lin Zhang
- Department of Aerospace Physiology, Fourth Military Medical University, Xi’an, China (Y.N., Q.L., L.Z., J.M., D.A.G.)
| | - Jin Ma
- Department of Aerospace Physiology, Fourth Military Medical University, Xi’an, China (Y.N., Q.L., L.Z., J.M., D.A.G.)
| | - Tereza Cindrova-Davies
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- Centre for Trophoblast Research, University of Cambridge, United Kingdom (W.T., Y.N., K.J.B., T.A.G., P.G.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
| | - Hong Wa Yung
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- Centre for Trophoblast Research, University of Cambridge, United Kingdom (W.T., Y.N., K.J.B., T.A.G., P.G.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
| | - Graham J. Burton
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- Centre for Trophoblast Research, University of Cambridge, United Kingdom (W.T., Y.N., K.J.B., T.A.G., P.G.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
| | - Dino A. Giussani
- Department of Physiology Development & Neuroscience, University of Cambridge, United Kingdom (W.T., B.J.A., K.L.B., O.V.P., Y.N., K.J.B., S.G.F., T.A.G., P.F.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- Centre for Trophoblast Research, University of Cambridge, United Kingdom (W.T., Y.N., K.J.B., T.A.G., P.G.B.W., T.C.-D., H.W.Y., G.J.B., D.A.G.)
- BHF Cardiovascular Centre for Research Excellence, University of Cambridge, United Kingdom (Y.N., K.J.B., D.A.S.)
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14
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Xiao TT, Ouyang ZW, Liu XC, Cao JJ, Wang ZX, Tong W. Angular dependence of spin-flop transition in triangular lattice antiferromagnet Cu 2(OH) 3Br. J Phys Condens Matter 2022; 34:275804. [PMID: 35453130 DOI: 10.1088/1361-648x/ac69a0] [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: 02/26/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
We report angular dependence of spin-flop transition in triangular lattice antiferromagnet Cu2(OH)3Br by angle-dependent magnetization and ESR measurements. The results show that the antiferromagnetic easy magnetization axis is the diagonal direction (θ= 45°) of theac*plane, i.e., the orientation of Cu1 spins based on the magnetic structure (2020Phys. Rev. Lett.125037204), whereas the spin-flop axis is thebaxis. A phenomenological model is proposed to describe the angle-dependent spin-flop transitions. Based on this model, Cu1 spins are sensitive to external magnetic field, while Cu2 spins are robust against to the field, showing partial decoupling. The model is expected to be used in other uniaxial antiferromagnets with a more general easy axis and complex spin-flop transitions.
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Affiliation(s)
- T T Xiao
- Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Z W Ouyang
- Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - X C Liu
- Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - J J Cao
- Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Z X Wang
- Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - W Tong
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
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15
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Jin X, Peng R, Tong W, Yin J, Xu H, Wu P. Investigation of the active centers and structural modifications for TS-1 in catalyzing the Beckmann rearrangement. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.05.033] [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: 11/25/2022]
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16
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Tong W, Wang G, Zhu L, Bai Y, Liu Z, Yang L, Wu H, Cui T, Zhang Y. Pan-Cancer Analysis Identified CD93 as a Valuable Biomarker for Predicting Patient Prognosis and Immunotherapy Response. Front Mol Biosci 2022; 8:793445. [PMID: 35265666 PMCID: PMC8900912 DOI: 10.3389/fmolb.2021.793445] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 10/12/2021] [Accepted: 12/24/2021] [Indexed: 01/10/2023] Open
Abstract
Background: The rapid development of immunotherapy has significantly improved patient outcomes in recent years. CD93, a novel biomarker expressed on vascular endothelial cells, is essential for tumor angiogenesis. Recent studies have shown that CD93 is closely related to immune cell infiltration and immunotherapy. However, its role in pan-cancer has not been reported. Methods: The Cancer Genome Atlas (TCGA), Human Protein Atlas (HPA), cbioportal, Gene Expression Omnibus (GEO), Tumor Immune Estimation Resource (TIMER2.0), and the Tumor–Immune System Interactions and Drug Bank (TISIDB) databases were used to analyze CD93 in pan-cancers. R software was used for statistical analysis and mapping. Results: There were significant differences in the expression of CD93 between tumor tissues and adjacent normal tissues in pan-cancer. The high expression of CD93 was associated with poor prognosis and high TNM stage in multiple tumor types. However, a high expression of CD93 was a protective factor in kidney renal clear cell carcinoma (KIRC). In addition, CD93 was closely related to immune cell infiltration in tumor tissues. Moreover, CD93 presented a robust correlation with immune modulators and immunotherapeutic markers [e.g., tumor mutation burden (TMB) and microsatellite instability (MSI)]. The results of gene set enrichment analysis (GSEA) showed that CD93 was correlated with tumor angiogenesis. Importantly, patients with a low expression of CD93 were more sensitive to immunotherapy in urothelial cancer. Conclusion: CD93, which is involved in various immune responses, controls immune cell infiltration and impacts on the malignant properties of various cancer types. Therefore, CD93 has potential value to be biomarker for determining the prognosis and immune infiltration in multiple cancers.
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Affiliation(s)
- Wen Tong
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Guangyu Wang
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Liuyang Zhu
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Yi Bai
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Zirong Liu
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Long Yang
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Hao Wu
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Tao Cui
- State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, China
- Research Unit for Drug Metabolism, Chinese Academy of Medical Sciences, Beijing, China
| | - Yamin Zhang
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
- *Correspondence: Yamin Zhang,
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17
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Wang P, Tong W, Wang Q. Combined transabdominal-transanal surgical approach for iatrogenic rectovaginal fistula: two case reports. Ann R Coll Surg Engl 2022; 104:50-53. [PMID: 35100847 DOI: 10.1308/rcsann.2021.1352] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023] Open
Abstract
Rectovaginal fistula (RVF) is a type of anastomotic leakage that may occur after low anterior resection for rectal cancer. The repair of RVF can be challenging because of the scar tissue stenosis and incomplete obstruction. Two patients presented in our department with vaginal faecal discharge almost 7 months after the radical resection of rectal cancer. On vaginal examination, titanium nails related to the rectal surgery were found in the vaginal wall. The patients were diagnosed with RVF. Considering that RVF positions in the patients were high and might adhere to the pelvic tissue, a combined transabdominal-transanal resection and vaginal repair surgery was performed. About 3 months after surgery, both patients underwent colonic closure surgery, with consequent good recovery. A combined transabdominal-transanal approach may provide distinct advantages in surgical repair of difficult cases of RVF.
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Affiliation(s)
- P Wang
- First Hospital of Jilin University, China
| | - W Tong
- First Hospital of Jilin University, China
| | - Q Wang
- First Hospital of Jilin University, China
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18
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Zhu LY, Hou JC, Yang L, Liu ZR, Tong W, Bai Y, Zhang YM. Application value of mixed reality in hepatectomy for hepatocellular carcinoma. World J Gastrointest Surg 2022; 14:36-45. [PMID: 35126861 PMCID: PMC8790326 DOI: 10.4240/wjgs.v14.i1.36] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/29/2021] [Accepted: 12/25/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND As a new digital holographic imaging technology, mixed reality (MR) technology has unique advantages in determining the liver anatomy and location of tumor lesions. With the popularization of 5G communication technology, MR shows great potential in preoperative planning and intraoperative navigation, making hepatectomy more accurate and safer.
AIM To evaluate the application value of MR technology in hepatectomy for hepatocellular carcinoma (HCC).
METHODS The clinical data of 95 patients who underwent open hepatectomy surgery for HCC between June 2018 and October 2020 at our hospital were analyzed retrospectively. We selected 95 patients with HCC according to the inclusion criteria and exclusion criteria. In 38 patients, hepatectomy was assisted by MR (Group A), and an additional 57 patients underwent traditional hepatectomy without MR (Group B). The perioperative outcomes of the two groups were collected and compared to evaluate the application value of MR in hepatectomy for patients with HCC.
RESULTS We summarized the technical process of MR-assisted hepatectomy in the treatment of HCC. Compared to traditional hepatectomy in Group B, MR-assisted hepatectomy in Group A yielded a shorter operation time (202.86 ± 46.02 min vs 229.52 ± 57.13 min, P = 0.003), less volume of bleeding (329.29 ± 97.31 mL vs 398.23 ± 159.61 mL, P = 0.028), and shorter obstructive time of the portal vein (17.71 ± 4.16 min vs 21.58 ± 5.24 min, P = 0.019). Group A had lower alanine aminotransferas and higher albumin values on the third day after the operation (119.74 ± 29.08 U/L vs 135.53 ± 36.68 U/L, P = 0.029 and 33.60 ± 3.21 g/L vs 31.80 ± 3.51 g/L, P = 0.014, respectively). The total postoperative complications and hospitalization days in Group A were significantly less than those in Group B [14 (37.84%) vs 35 (60.34%), P = 0.032 and 12.05 ± 4.04 d vs 13.78 ± 4.13 d, P = 0.049, respectively].
CONCLUSION MR has some application value in three-dimensional visualization of the liver, surgical planning, and intraoperative navigation during hepatectomy, and it significantly improves the perioperative outcomes of hepatectomy for HCC.
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Affiliation(s)
- Liu-Yang Zhu
- First Central Clinical College, Tianjin Medical University, Tianjin 300070, China
| | - Jian-Cun Hou
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, Tianjin 300192, China
| | - Long Yang
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, Tianjin 300192, China
| | - Zi-Rong Liu
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, Tianjin 300192, China
| | - Wen Tong
- First Central Clinical College, Tianjin Medical University, Tianjin 300070, China
| | - Yi Bai
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, Tianjin 300192, China
| | - Ya-Min Zhang
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, Tianjin 300192, China
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Tong W, Zhu L, Bai Y, Yang L, Liu Z, Zhang Y. Enhancer RNA LINC00242-Induced Expression of PHF10 Drives a Better Prognosis in Pancreatic Adenocarcinoma. Front Oncol 2022; 11:795090. [PMID: 35127503 PMCID: PMC8812487 DOI: 10.3389/fonc.2021.795090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 10/14/2021] [Accepted: 12/27/2021] [Indexed: 12/22/2022] Open
Abstract
Enhancer RNA is a kind of non-coding RNA, which is transcribed from the enhancer region of gene and plays an important role in gene transcription regulation. However, the role of eRNA in pancreatic adenocarcinoma (PAAD) is still unclear. In this study, we identified the key eRNA and its target gene in PAAD. The transcriptome data and clinical information of pancreatic cancer were downloaded from the UCSC Xena platform. A total of 2,695 eRNAs and its target gene predicted by the PreSTIGE method were selected as candidate eRNA–target pairs. After survival analysis, we found that LINC00242 was the eRNA most related to patients’ survival, and correlation analysis further indicated that LINC00242 and its target gene PHF10 had a significant co-expression relationship. Downregulation of LINC00242 was significantly associated with unfavorable clinicopathological features. Based on pan-cancer analysis, we found that LINC00242 was associated with the survival of multiple cancers, and LINC00242 was co-expressed with its target genes in multiple cancer types. External experiments further demonstrated that PHF10 was the downstream target gene of LINC00242. After ssGSEA analysis, PAAD patients were classified as high, medium, and low immune cell infiltration clusters. Compared with the low and medium immune infiltration clusters, the expression level of PHF10 was significantly upregulated in the high immune infiltration clusters. After performing the CIBERSORT algorithm, we found that there was a significant difference in the abundance of immune infiltrating cells between the PHF10 high- and low-expression groups. Additionally, the web tool TIMER was used to detect the distribution and expression of PHF10 in pan-cancer.
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Affiliation(s)
- Wen Tong
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Liuyang Zhu
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Yi Bai
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Long Yang
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Zirong Liu
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Yamin Zhang
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
- *Correspondence: Yamin Zhang,
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20
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Yan Z, Cui Y, Huang X, Lei S, Zhou W, Tong W, Chen W, Shen M, Wu K, Jiang Y. Molecular Characterization Based on Whole-Genome Sequencing of Streptococcus pneumoniae in Children Living in Southwest China During 2017-2019. Front Cell Infect Microbiol 2021; 11:726740. [PMID: 34796125 PMCID: PMC8593041 DOI: 10.3389/fcimb.2021.726740] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/25/2021] [Indexed: 01/30/2023] Open
Abstract
Background Streptococcus pneumoniae is an important pathogen causing high morbidity and high mortality in children and undergoes frequent recombination for capsule switching to neutralize the 13-valent pneumococcal conjugate vaccine (PCV13). This study aimed to investigate the prevalence, and molecular characteristics including serotypes and antibiotic susceptibility of S. pneumoniae isolated from children living in Southwest China from 2017 to 2019 to facilitate the selection of effective vaccine formulations and appropriate antibiotic treatment regimens. Methods This study was conducted at West China Second University Hospital (Chengdu, Sichuan Province, China), Zunyi Medical University Third Affiliated Hospital/First People's Hospital of Zunyi (Zunyi, Guizhou Province, China) and Chengdu Jinjiang District Maternal and Child Healthcare Hospital (Chengdu, Sichuan Province, China). Demographic and clinical characteristics of children infected with S. pneumoniae were collected and analysed. Next-generation sequencing and sequence analysis were used to determine the serotypes, sequence types, antibiotic resistance and potential protein vaccine target genes of the pneumococcal isolates. The coverage rate provided by PCV13 was estimated by calculating the percentage of the specific serotypes that were specifically the PCV13-included serotypes. Antimicrobial susceptibility was determined by the microdilution broth method. Results The most prevalent pneumococcal serotypes were 19F (25.8%), 19A (14.1%), 6B (12.5%), 6A (9.4%) and 14 (7.8%). The predominant STs were ST271 (23.3%), ST320 (15.5%) and ST90 (8.6%), dominated by the clonal complex Taiwan19F-14 (39.1%). The coverage rate of PCV13 was 77.3% in all the isolates, with relatively higher values in invasive isolates (86.4%). Over the decade, the rates of resistance to penicillin, amoxicillin and cefotaxime were 5.6%, 5.3% and 5.1%, respectively, with significantly higher values in invasive isolates (22.4%, 14.9% and 11.9%). Almost all the isolates were resistant to erythromycin (99.1%) and clindamycin (95.9%). All isolates carried virulence-related genes, including ply, psaA, piaA, piuA, phtE, nanA, pepO, danJ, pvaA, clpP, pcsB, stkP, potD, and strH. The carriage of virulence and resistance genes varied among serotypes and clades, with serotype 19F/ST271 showing higher resistance to antibiotics and being more likely to carry pilus genes and other virulence genes. Conclusion These data provide valuable information for the understanding of pneumococcal pathogenesis, antimicrobial resistance and the development of protein-based vaccines against pneumococcal infection.
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Affiliation(s)
- Ziyi Yan
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yali Cui
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China.,Department of Laboratory Medicine, Meishan Women and Children's Hospital, Alliance Hospital of West China Second University Hospital, Sichuan University, Meishan, China
| | - Xiaocui Huang
- Department of Laboratory Medicine, Chengdu Jinjiang District Maternal and Child Healthcare Hospital, Chengdu, China
| | - Shikun Lei
- State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Wei Zhou
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Wen Tong
- Department of Laboratory Medicine, Sichuan Jinxin Women and Children Hospital, Chengdu, China
| | - Wen Chen
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Meijing Shen
- Department of Laboratory Medicine, Zunyi Medical University Third Affiliated Hospital/First People's Hospital of Zunyi, Zunyi, China
| | - Kaifeng Wu
- Department of Laboratory Medicine, Zunyi Medical University Third Affiliated Hospital/First People's Hospital of Zunyi, Zunyi, China
| | - Yongmei Jiang
- Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
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21
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Wu H, Zhang J, Bai Y, Zhang S, Zhang Z, Tong W, Han P, Fu B, Zhang Y, Shen Z. DCP1A is an unfavorable prognostic-related enhancer RNA in hepatocellular carcinoma. Aging (Albany NY) 2021; 13:23020-23035. [PMID: 34609335 PMCID: PMC8544297 DOI: 10.18632/aging.203593] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 09/20/2021] [Indexed: 01/31/2023]
Abstract
Long non-coding RNAs (lncRNAs) are associated with occurrence and development of tumors. Enhancer RNA (eRNA) is a special type of lncRNAs produced from transcription of enhancer elements. The function of eRNAs in tumors have elicited significant attention recently. However, the clinical significance and role of eRNAs in hepatocellular carcinoma (HCC) has not been fully explored. The current study sought to explore the expression level and prognostic value of key eRNAs in HCC. Bioinformatics analyses were used to explore expression levels of key prognostic eRNAs in HCC and their correlation with target genes. A total of 1580 enhancer RNAs (eRNAs) and 1791 target genes were initially retrieved from TCGA-LIHC gene expression database. Further analysis through survival and correlation analysis led to identification of 12 eRNAs and 13 target genes. The findings showed that DCP1A was the most prognosis-related eRNA. This eRNA showed the highest correlation with the target gene, PRKCD. Analysis showed that poor overall survival (OS) in HCC patients was correlated with high expression level of DCP1A (eRNA) and PRKCD (target gene). The up-regulation of DCP1A was associated with advanced tumor stage, larger tumor size and higher histological grade. The results of pan-cancer analysis showed that the expression of DCP1A was differentially expressed in 13 other types of tumor tissues and their corresponding normal tissues. This eRNA was highly expressed in digestive system tumors. Functional analysis showed that high expression level of DCP1A was implicated in multiple tumor-related signaling pathways. The findings of the current study indicated DCP1A is a novel biomarker that can be used as a potential therapeutic target for HCC patients.
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Affiliation(s)
- Hao Wu
- First Central Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Jinrui Zhang
- First Central Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Yi Bai
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Sai Zhang
- Organ Transplant Center, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Zhixin Zhang
- First Central Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Wen Tong
- First Central Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Pinsheng Han
- First Central Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Bing Fu
- First Central Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Yamin Zhang
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Zhongyang Shen
- Organ Transplant Center, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
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22
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Tu H, Yu C, Tong W, Zhou C, Li R, Huang P, Wang Q, Chang Y. Evaluation of the Liver and Blood Micronucleus, and Comet Assay Endpoints in a 14-Day Repeated Dose Study with Methyl Carbamate and 1, 3-Propane Sultone. Mutagenesis 2021; 36:401-406. [PMID: 34516639 DOI: 10.1093/mutage/geab034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 09/12/2021] [Indexed: 11/12/2022] Open
Abstract
The repeated-dose liver micronucleus (RDLMN) assay is a novel method for detecting genotoxic chemicals. Two carcinogens methyl carbamate (MC) and 1, 3-propane sultone (PS) were evaluated for the liver micronucleus in a 14-day repeated-dose study with Sprague Dawley rats. Additionally, micronucleated reticulocytes (MN-RET) in peripheral blood and DNA damage (alkaline comet assay) in the liver were also assessed in the same animals. Ten groups of 5 male Sprague Dawley rats were treated once daily with MC (300, 600, or 1200 mg/kg/day), PS (37.5, 75, or 150 mg/kg/day), negative control, or 3 positive controls by oral gavage for 15 days. Blood samples were collected at 3 hours after the last administration for determining MN-RET frequencies (%MN-RET), and the livers were sampled for determining the frequency of micronuclei and DNA damage. MC was negative in the comet assay, liver micronucleus assay, and reticulocyte micronucleus assay, while PS was positive in all three assays. These results are consistent with the previous genotoxic findings of MC and PS. Therefore, the liver micronucleus assay can be effectively integrated into repeated dose studies in animals. Moreover, integration of multiple genotoxicity endpoints into one study can reduce the number of animals, boost the experimental efficiency, and provides a comprehensive evaluation of the genotoxic potential of chemicals.
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Affiliation(s)
- Honggang Tu
- School of Pharmacy, Shanghai Jiao Tong University, China.,Shanghai InnoStar Bio-Tech Co. Ltd/National Shanghai Center for New Drug Safety Evaluation and Research, China State Institute of Pharmaceutical Industry, Shanghai, China
| | - Chunrong Yu
- Shanghai InnoStar Bio-Tech Co. Ltd/National Shanghai Center for New Drug Safety Evaluation and Research, China State Institute of Pharmaceutical Industry, Shanghai, China
| | - Wen Tong
- Shanghai InnoStar Bio-Tech Co. Ltd/National Shanghai Center for New Drug Safety Evaluation and Research, China State Institute of Pharmaceutical Industry, Shanghai, China
| | - Changhui Zhou
- Shanghai InnoStar Bio-Tech Co. Ltd/National Shanghai Center for New Drug Safety Evaluation and Research, China State Institute of Pharmaceutical Industry, Shanghai, China
| | - Ruowan Li
- Shanghai InnoStar Bio-Tech Co. Ltd/National Shanghai Center for New Drug Safety Evaluation and Research, China State Institute of Pharmaceutical Industry, Shanghai, China
| | - Pengcheng Huang
- Shanghai InnoStar Bio-Tech Co. Ltd/National Shanghai Center for New Drug Safety Evaluation and Research, China State Institute of Pharmaceutical Industry, Shanghai, China
| | - Qingli Wang
- Center for Drug Evaluation, National Medical Products Administration (China Food and Drug Administration), Beijing, China
| | - Yan Chang
- Shanghai InnoStar Bio-Tech Co. Ltd/National Shanghai Center for New Drug Safety Evaluation and Research, China State Institute of Pharmaceutical Industry, Shanghai, China
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23
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Verheijen M, Gant T, Tong W, Caiment F. R-ODAF: Omics data analysis framework for regulatory application. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00539-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Wang P, Tong W, Wang Q. Combined transabdominal-transanal surgical approach for iatrogenic rectovaginal fistula: two case reports. Ann R Coll Surg Engl 2021; 104:e50-e53. [PMID: 34414795 DOI: 10.1308/rcsann.2021.0063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Rectovaginal fistula (RVF) is a type of anastomotic leakage that may occur after low anterior resection for rectal cancer. The repair of RVF can be challenging because of the scar tissue stenosis and incomplete obstruction. Two patients presented in our department with vaginal faecal discharge almost 7 months after the radical resection of rectal cancer. On vaginal examination, titanium nails related to the rectal surgery were found in the vaginal wall. The patients were diagnosed with RVF. Considering that RVF positions in the patients were high and might adhere to the pelvic tissue, a combined transabdominal-transanal resection and vaginal repair surgery was performed. About 3 months after surgery, both patients underwent colonic closure surgery, with consequent good recovery. A combined transabdominal-transanal approach may provide distinct advantages in surgical repair of difficult cases of RVF.
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Affiliation(s)
- P Wang
- First Hospital of Jilin University, China
| | - W Tong
- First Hospital of Jilin University, China
| | - Q Wang
- First Hospital of Jilin University, China
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25
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Li F, Zhang F, Tan D, Ye J, Tong W. Robotic transanal total mesorectal excision combined with intersphincteric resection for ultra-low rectal cancer. Tech Coloproctol 2021; 25:1335-1336. [PMID: 34236533 DOI: 10.1007/s10151-021-02494-9] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 06/23/2021] [Indexed: 11/24/2022]
Affiliation(s)
- F Li
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - F Zhang
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - D Tan
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - J Ye
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, 400042, China.,Department of General Surgery, The People's Hospital of Shapingba District, Chongqing, China
| | - W Tong
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, 400042, China.
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26
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Bai Y, Tong W, Xie F, Zhu L, Wu H, Shi R, Wang L, Yang L, Liu Z, Miao F, Zhao Q, Zhang Y. DNA methylation biomarkers for diagnosis of primary liver cancer and distinguishing hepatocellular carcinoma from intrahepatic cholangiocarcinoma. Aging (Albany NY) 2021; 13:17592-17606. [PMID: 34237708 PMCID: PMC8312421 DOI: 10.18632/aging.203249] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 05/17/2021] [Indexed: 12/13/2022]
Abstract
Hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC) are the two most common pathology subtypes of primary liver cancer (PLC). Identifying DNA methylation biomarkers for diagnosis of PLC and further distinguishing HCC from ICC plays a vital role in subsequent treatment options selection. To obtain potential diagnostic DNA methylation sites for PLC, differentially methylated CpG (DMC) sites were first screened by comparing the methylation data between normal liver samples and PLC samples (ICC samples and HCC samples). A random forest algorithm was then used to select specific DMC sites with top Gini value. To avoid overfitting, another cohort was taken as an external validation for evaluating the area under curves (AUCs) of different DMC sites combination. A similar model construction strategy was applied to distinguish HCC from ICC. In addition, we identified DNA Methylation-Driven Genes in HCC and ICC via MethylMix method and performed pathway analysis by utilizing MetaCore. Finally, we not only performed methylator phenotype based on independent prognostic sites but also analyzed the correlations between methylator phenotype and clinical factors in HCC and ICC, respectively. To diagnose PLC, we developed a model based on three PLC-specific methylation sites (cg24035245, cg21072795, and cg00261162), whose sensitivity and specificity achieved 98.8%,94.8% in training set and 97.3%,81% in validation set. Then, to further divide the PLC samples into HCC and ICC, we established another mode through three methylation sites (cg17769836, cg17591574, and cg07823562), HCC accuracy and ICC accuracy achieved 95.8%, 89.8% in the training set and 96.8%,85.4% in the validation set. In HCC, the enrichment pathways were mainly related to protein folding, oxidative stress, and glutathione metabolism. While in ICC, immune response, embryonic hepatocyte maturation were the top pathways. Both in HCC and ICC, methylator phenotype correlated well with overall survival time and clinical factors involved in tumor progression. In summary, our study provides the biomarkers based on methylation sites not only for the diagnosis of PLC but also for distinguishing HCC from ICC.
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Affiliation(s)
- Yi Bai
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Wen Tong
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Fucun Xie
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College (CAMS and PUMC), Beijing, China
| | - Liuyang Zhu
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Hao Wu
- Tianjin First Central Hospital Clinic Institute, Tianjin Medical University, Tianjin, China
| | - Rui Shi
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Lianjiang Wang
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Long Yang
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Zhisong Liu
- Department of Statistics, Tianjin University of Finance and Economics Pearl River College, Tianjin, China
| | - Fei Miao
- Department of Statistics, Tianjin University of Finance and Economics Pearl River College, Tianjin, China
| | - Qiang Zhao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Science, Nankai University, Tianjin, China
| | - Yaming Zhang
- Department of Hepatobiliary Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
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27
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Shen H, Zheng H, Tong W. Reply to: Robotic-assisted transanal total mesorectal excision for rectal cancer: more questions than answers. Tech Coloproctol 2021; 25:989-990. [PMID: 34089399 DOI: 10.1007/s10151-021-02435-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/08/2021] [Indexed: 11/30/2022]
Affiliation(s)
- H Shen
- Department of General Surgery, Army Medical Center (Daping Hospital), Army Medical University, Chongqing, China
| | - H Zheng
- Department of General Surgery, Army Medical Center (Daping Hospital), Army Medical University, Chongqing, China
| | - W Tong
- Department of General Surgery, Army Medical Center (Daping Hospital), Army Medical University, Chongqing, China.
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28
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Liu ZF, Chen CY, Tong W, Su YQ. Deafness enhances perceptual span size in Chinese reading: Evidence from a gaze-contingent moving-window paradigm. Psych J 2021; 10:508-520. [PMID: 33899345 DOI: 10.1002/pchj.442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 02/06/2021] [Accepted: 02/18/2021] [Indexed: 11/08/2022]
Abstract
Using a gaze-contingent moving-window paradigm, we investigated whether/how deafness affects perceptual processing in Chinese reading. Besides the manipulation of window size, word length of sentences used in the experiment was also manipulated to check whether deafness enhanced the word length effect on perceptual span. Significant interactions of window constraints and deafness and a three-way interaction were observed on reading rate. Smaller effects of window constraints for deaf Chinese readers and nonreliable three-way interactions were observed on forward saccade length. This suggests that deaf Chinese readers exhibit a larger perceptual span, and word length affected the span from which information was acquired for comprehension whereas both deafness and word length might have little impact on the span from which information is acquired for oculomotor targeting during natural reading of Chinese.
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Affiliation(s)
- Zhi Fang Liu
- Department of Psychology, Hangzhou Normal University, Hangzhou, China
| | - Chao Yang Chen
- Department of Psychology, Ningbo University, Ningbo, China
| | - Wen Tong
- Department of Psychology, Shanxi Normal University, Linfen, China
| | - Yong Qiang Su
- Department of Psychology, Beijing Normal University, Beijing, China
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29
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You X, Wang CX, Huang J, Gao X, Zhang Z, Wang M, Huang Y, Zhang C, Jiang Y, Wang J, Zhu M, Sheng B, Wang D, Pan Z, Zhu P, Yang Y, Liu Z, Zhang P, Tao X, Li S, Chen Z, Ma X, I CL, Han S, Li K, Pan C, Zheng Z, Hanzo L, Shen X(S, Guo YJ, Ding Z, Haas H, Tong W, Zhu P, Yang G, Wang J, Larsson EG, Ngo HQ, Hong W, Wang H, Hou D, Chen J, Chen Z, Hao Z, Li GY, Tafazolli R, Gao Y, Poor HV, Fettweis GP, Liang YC. Towards 6G wireless communication networks: vision, enabling technologies, and new paradigm shifts. Sci. China Inf. Sci. 2021; 64:110301. [PMCID: PMC7714900 DOI: 10.1007/s11432-020-2955-6] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/08/2020] [Accepted: 06/17/2020] [Indexed: 05/27/2023]
Abstract
The fifth generation (5G) wireless communication networks are being deployed worldwide from 2020 and more capabilities are in the process of being standardized, such as mass connectivity, ultra-reliability, and guaranteed low latency. However, 5G will not meet all requirements of the future in 2030 and beyond, and sixth generation (6G) wireless communication networks are expected to provide global coverage, enhanced spectral/energy/cost efficiency, better intelligence level and security, etc. To meet these requirements, 6G networks will rely on new enabling technologies, i.e., air interface and transmission technologies and novel network architecture, such as waveform design, multiple access, channel coding schemes, multi-antenna technologies, network slicing, cell-free architecture, and cloud/fog/edge computing. Our vision on 6G is that it will have four new paradigm shifts. First, to satisfy the requirement of global coverage, 6G will not be limited to terrestrial communication networks, which will need to be complemented with non-terrestrial networks such as satellite and unmanned aerial vehicle (UAV) communication networks, thus achieving a space-air-ground-sea integrated communication network. Second, all spectra will be fully explored to further increase data rates and connection density, including the sub-6 GHz, millimeter wave (mmWave), terahertz (THz), and optical frequency bands. Third, facing the big datasets generated by the use of extremely heterogeneous networks, diverse communication scenarios, large numbers of antennas, wide bandwidths, and new service requirements, 6G networks will enable a new range of smart applications with the aid of artificial intelligence (AI) and big data technologies. Fourth, network security will have to be strengthened when developing 6G networks. This article provides a comprehensive survey of recent advances and future trends in these four aspects. Clearly, 6G with additional technical requirements beyond those of 5G will enable faster and further communications to the extent that the boundary between physical and cyber worlds disappears.
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Affiliation(s)
- Xiaohu You
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Cheng-Xiang Wang
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Jie Huang
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Xiqi Gao
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Zaichen Zhang
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Mao Wang
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Yongming Huang
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Chuan Zhang
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Yanxiang Jiang
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Jiaheng Wang
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Min Zhu
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Bin Sheng
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Dongming Wang
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Zhiwen Pan
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Pengcheng Zhu
- National Mobile Communications Research Laboratory, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Yang Yang
- Shanghai Institute of Fog Computing Technology (SHIFT), ShanghaiTech University, Shanghai, 201210 China
- Research Center for Network Communication, Peng Cheng Laboratory, Shenzhen, 518000 China
| | - Zening Liu
- Purple Mountain Laboratories, Nanjing, 211111 China
| | - Ping Zhang
- State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876 China
| | - Xiaofeng Tao
- National Engineering Laboratory for Mobile Network Technologies, Beijing University of Posts and Telecommunications, Beijing, 100876 China
| | - Shaoqian Li
- National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China (UESTC), Chengdu, 611731 China
| | - Zhi Chen
- National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China (UESTC), Chengdu, 611731 China
| | - Xinying Ma
- National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China (UESTC), Chengdu, 611731 China
| | - Chih-Lin I
- China Mobile Research Institute, Beijing, 100053 China
| | | | - Ke Li
- China Mobile Research Institute, Beijing, 100053 China
| | - Chengkang Pan
- China Mobile Research Institute, Beijing, 100053 China
| | - Zhimin Zheng
- China Mobile Research Institute, Beijing, 100053 China
| | - Lajos Hanzo
- School of Electronics and Computer Science, University of Southampton, Southampton, SO17 1BJ UK
| | - Xuemin (Sherman) Shen
- Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, N2L 3G1 Canada
| | - Yingjie Jay Guo
- Global Big Data Technologies Centre (GBDTC), University of Technology Sydney, Sydney, NSW 2007 Australia
| | - Zhiguo Ding
- School of Electrical and Electronic Engineering, The University of Manchester, Manchester, M13 9PL UK
| | - Harald Haas
- LiFi Research and Development Centre, Institute for Digital Communications, School of Engineering, The University of Edinburgh, Edinburgh, EH9 3JL UK
| | - Wen Tong
- Huawei Technologies Canada Co., Ltd., Ottawa, K2K 3J1 Canada
| | - Peiying Zhu
- Huawei Technologies Canada Co., Ltd., Ottawa, K2K 3J1 Canada
| | | | - Jun Wang
- Huawei Technologies, Hangzhou, 310007 China
| | - Erik G. Larsson
- Department of Electrical Engineering (ISY), Linköping University, Linköping, 581 83 Sweden
| | - Hien Quoc Ngo
- Institute of Electronics, Communications & Information Technology (ECIT), Queen’s University Belfast, Belfast, BT3 9DT UK
| | - Wei Hong
- Purple Mountain Laboratories, Nanjing, 211111 China
- State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
| | - Haiming Wang
- Purple Mountain Laboratories, Nanjing, 211111 China
- State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
| | - Debin Hou
- Purple Mountain Laboratories, Nanjing, 211111 China
- State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
| | - Jixin Chen
- Purple Mountain Laboratories, Nanjing, 211111 China
- State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
| | - Zhe Chen
- Purple Mountain Laboratories, Nanjing, 211111 China
- State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
| | - Zhangcheng Hao
- Purple Mountain Laboratories, Nanjing, 211111 China
- State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing, 210096 China
| | - Geoffrey Ye Li
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332 USA
| | - Rahim Tafazolli
- 5G Innovation Centre, University of Surrey, Guildford, GU2 7XH UK
| | - Yue Gao
- 5G Innovation Centre, University of Surrey, Guildford, GU2 7XH UK
| | | | - Gerhard P. Fettweis
- Center for Intelligent Networking and Communications (CINC), University of Electronic Science and Technology of China (UESTC), Chengdu, 611731 China
| | - Ying-Chang Liang
- Vodafone Chair Mobile Communications Systems, Technische Universität Dresden, Dresden, 01069 Germany
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Ding L, Yin J, Tong W, Peng R, Jiang J, Xu H, Wu P. Selective synthesis of epichlorohydrin via liquid-phase allyl chloride epoxidation over a modified Ti-MWW zeolite in a continuous slurry bed reactor. NEW J CHEM 2021. [DOI: 10.1039/d0nj04491a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The epoxidation of allyl chloride (ALC) to epichlorohydrin (ECH) with H2O2 using a piperidine (PI)-modified Ti-MWW catalyst (Ti-MWW-PI) in a continuous slurry reactor was investigated to develop an efficient reaction system for the corresponding industrial process.
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Affiliation(s)
- Luoyi Ding
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Jinpeng Yin
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Wen Tong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Rusi Peng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Jingang Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Hao Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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Wei Q, Zhang R, Wei B, Tong W, Yang R, Yan H, Zhang M, Hu M, Zhu X, Yao R. A new large-cell superhard carbon allotrope: orthorhombic oC 240. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1767815] [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: 10/24/2022]
Affiliation(s)
- Qun Wei
- School of Physics and Optoelectronic Engineering, Xidian University, Xi’an, People’s Republic of China
| | - Rui Zhang
- School of Physics and Optoelectronic Engineering, Xidian University, Xi’an, People’s Republic of China
| | - Bing Wei
- School of Physics and Optoelectronic Engineering, Xidian University, Xi’an, People’s Republic of China
| | - Wen Tong
- School of Physics and Optoelectronic Engineering, Xidian University, Xi’an, People’s Republic of China
| | - Ruike Yang
- School of Physics and Optoelectronic Engineering, Xidian University, Xi’an, People’s Republic of China
| | - Haiyan Yan
- College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, People’s Republic of China
| | - Meiguang Zhang
- College of Physics and Optoelectronic Technology, Baoji University of Arts and Sciences, Baoji, People’s Republic of China
| | - Mingwei Hu
- School of Physics and Optoelectronic Engineering, Xidian University, Xi’an, People’s Republic of China
| | - Xuanmin Zhu
- School of Information, Guizhou University of Finance and Economics, Guiyang, People’s Republic of China
| | - Ronghui Yao
- School of Physics and Optoelectronic Engineering, Xidian University, Xi’an, People’s Republic of China
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32
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Tong W, Yin J, Ding L, Xu H, Wu P. Modified Ti-MWW Zeolite as a Highly Efficient Catalyst for the Cyclopentene Epoxidation Reaction. Front Chem 2020; 8:585347. [PMID: 33195081 PMCID: PMC7581914 DOI: 10.3389/fchem.2020.585347] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 08/31/2020] [Indexed: 11/18/2022] Open
Abstract
The liquid-phase epoxidation of cyclopentene (CPE) was performed in the Ti-zeolite/H2O2 catalytic system for the clean synthesis of cyclopentene oxide. Among all the Ti-zeolites (Ti-Beta, Ti-MOR, Ti-MCM-68, TS-1, TS-2, and Ti-MWW) investigated in the present study, Ti-MWW provided relatively lower CPE conversion of 13% due to the diffusion constrains but a higher CPO selectivity of 99.5%. The catalytic performance of Ti-MWW was significantly enhanced by piperidine (PI) treatment, with the CPE conversion and CPO selectivity increased to 97.8 and 99.9%, respectively. The structural rearrangement upon PI treatment converted the 3-dimensional (3D) MWW structure to a 2D lamellar one, which enlarged the interlayer space and greatly alleviated the diffusion constrains of cyclic cyclopentene. Furthermore, the newly constructed “open site” six-coordinated Ti active sites with PI as the ligand exhibited higher catalytic activity. The two factors contributed to more significant enhancement of the activity upon PI-assisted structural arrangement compared to the cases in linear alkenes.
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Affiliation(s)
- Wen Tong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Jinpeng Yin
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Luoyi Ding
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Hao Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, China
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Tong W, Han TC, Wang W, Zhao J. LncRNA CASC11 promotes the development of lung cancer through targeting microRNA-302/CDK1 axis. Eur Rev Med Pharmacol Sci 2020; 23:6539-6547. [PMID: 31378894 DOI: 10.26355/eurrev_201908_18539] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To elucidate whether long non-coding RNA cancer susceptibility candidate 11 (lncRNA CASC11) could participate in the development of lung cancer through targeting microRNA-302/CDK1 axis. PATIENTS AND METHODS Expression levels of CASC11, microRNA-302 and CDK1 in lung cancer tissues and paracancerous tissues were determined by quantitative real-time polymerase chain reaction (qRT-PCR). CASC11 expression in lung cancer cell lines was also determined. The regulatory effect of CASC11 on proliferative potential of lung cancer cells was accessed by cell counting kit-8 (CCK-8) and colony formation assay. The binding condition between microRNA-302 to CASC11 and CDK1 was evaluated by dual-luciferase reporter gene assay. CDK1 expression in lung cancer cells with CASC11 or microRNA-302 knockdown was detected by Western blot. The proliferation of lung cancer cells was determined after transfection of microRNA-302 inhibitor or co-transfection of microRNA-302 inhibitor and si-CASC11. RESULTS CASC11 and CDK1 were highly expressed, whereas microRNA-302 was lowly expressed in lung cancer tissues. Identically, CASC11 was highly expressed in lung cancer cell lines (A547, H157 and SPC-A-1) than controls as well. CASC11 knockdown attenuated proliferative capacity of lung cancer cells. The opposite trend was observed by microRNA-302 knockdown. Dual-luciferase reporter gene assay verified that CASC11 could bind to microRNA-302 and microRNA-302 could bind to CDK1. CDK1 expression in lung cancer cells was negatively regulated by CASC11. MicroRNA-302 knockdown reversed the inhibitory effect of CASC11 on CDK1 expression. The proliferation of lung cancer cells co-transfected with microRNA-302 inhibitor and si-CASC11 decreased compared with those transfected with microRNA-302 inhibitor. CONCLUSIONS High expression of CASC11 promotes the development of lung cancer through upregulating CDK1 expression by binding to microRNA-302.
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Affiliation(s)
- W Tong
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, China.
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Cheng M, Tong W, Luo J, Li M, Liang J, Pan F, Pan J, Zheng Y, Xie X. Value of contrast-enhanced ultrasound in the diagnosis of breast US-BI-RADS 3 and 4 lesions with calcifications. Clin Radiol 2020; 75:934-941. [PMID: 32814625 DOI: 10.1016/j.crad.2020.07.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 07/14/2020] [Indexed: 10/23/2022]
Abstract
AIM To evaluate the diagnostic performance of contrast-enhanced ultrasound (CEUS) for Breast Imaging-Reporting and Data System for Ultrasound (US-BI-RADS) 3 and 4 lesions with calcifications. MATERIALS AND METHODS A retrospective study of 168 breast lesions with calcifications detected on both mammography and conventional ultrasonography (US) in 152 patients were categorised as US-BI-RADS 3-4 at US between June 2009 and June 2018. CEUS scores were obtained based on a CEUS five-point scoring system. The combination of US-BI-RADS and CEUS scores created the Rerated BI-RADS (referred to as CEUS-BI-RADS). All results were compared with the histological findings. The diagnostic performances of US and CEUS-BI-RADS were compared. RESULTS The diagnostic sensitivity, specificity, and accuracy of US were 81.8% (95% confidence interval [CI]: 71.6%, 92%), 85% (95% CI: 78.4%, 91.5%), and 83.9% (95% CI: 78.4%, 89.5%), respectively, while those for CEUS-BI-RADS were 98.2% (95% CI: 94.7%, 100%), 90.3% (95% CI: 84.8%, 95.7%), and 92.9% (95% CI: 89%, 96.8%), respectively. The diagnostic sensitivity and accuracy values of CEUS-BI-RADS greatly improved compared with those of US (p=0.003 and p=0.004, respectively). The areas under the receiver operating characteristic (ROC) curves for US and CEUS-BI-RADS were 0.888 (95% CI: 0.840, 0.936) and 0.963 (95% CI: 0.936, 0.989), respectively. The diagnostic efficacy of CEUS-BI-RADS was significantly higher than that of US alone (p=0.004). CONCLUSION CEUS-BI-RADS significantly improves the diagnostic accuracy for breast US-BI-RADS 3 and 4 lesions with calcifications compared with US.
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Affiliation(s)
- M Cheng
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - W Tong
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - J Luo
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - M Li
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - J Liang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - F Pan
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - J Pan
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - Y Zheng
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China.
| | - X Xie
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
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35
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Liu Z, Liu X, Tong W, Fu F. Word's Contextual Predictability and Its Character Frequency Effects in Chinese Reading: Evidence From Eye Movements. Front Psychol 2020; 11:1833. [PMID: 32982821 PMCID: PMC7480120 DOI: 10.3389/fpsyg.2020.01833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 07/03/2020] [Indexed: 11/13/2022] Open
Abstract
The present study sought to establish how a word's contextual predictability impacts the early stages of word processing when reading Chinese. Two eye-movement experiments were conducted in which the predictability of the target two-character word was manipulated; the frequency of the target's initial character was manipulated in Experiment 1, as was the target's end character frequency in Experiment 2. No reliable interaction effect of predictability with initial character frequency was observed in Experiment 1. Reliable interactions of word predictability with end character frequency were observed in Experiment 2. The end character frequency effects, in which the words with high-frequency end characters were fixated for a shorter time and re-fixated less often, were only observed when reading unpredictable words. Reliable interactions were also observed with incoming saccade length, as high-frequency end character words elicited longer saccades to themselves than low-frequency end character words when reading predictable words. The effects of pervasive predictability on measures of fixation time, probability, and saccade length were noted in both experiments. Our findings suggest that a word's contextual predictability facilitates the processing of its constituent characters.
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Affiliation(s)
- Zhifang Liu
- Department of Psychology, College of Education, Hangzhou Normal University, Hangzhou, China
| | - Xuanwen Liu
- Department of Psychology, College of Education, Hangzhou Normal University, Hangzhou, China
| | - Wen Tong
- Department of Psychology, College of Education, Shaanxi Normal University, Linfen, China
| | - Fuyin Fu
- Department of Psychology, College of Education, Ningbo University, Ningbo, China
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Teulings NEWD, Garrud TAC, Niu Y, Skeffington KL, Beck C, Itani N, Conlon FG, Botting KJ, Nicholas LM, Ashmore TJ, Blackmore HL, Tong W, Camm EJ, Derks JB, Logan A, Murphy MP, Ozanne SE, Giussani DA. Isolating adverse effects of glucocorticoids on the embryonic cardiovascular system. FASEB J 2020; 34:9664-9677. [PMID: 32502311 PMCID: PMC7611332 DOI: 10.1096/fj.202000697r] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/04/2020] [Accepted: 05/10/2020] [Indexed: 01/07/2023]
Abstract
Antenatal glucocorticoid therapy reduces mortality in the preterm infant, but evidence suggests off-target adverse effects on the developing cardiovascular system. Whether deleterious effects are direct on the offspring or secondary to alterations in uteroplacental physiology is unclear. Here, we isolated direct effects of glucocorticoids using the chicken embryo, a model system in which the effects on the developing heart and circulation of therapy can be investigated, independent of effects on the mother and/or the placenta. Fertilized chicken eggs were incubated and divided randomly into control (C) or dexamethasone (Dex) treatment at day 14 out of the 21-day incubation period. Combining functional experiments at the isolated organ, cellular and molecular levels, embryos were then studied close to term. Chicken embryos exposed to dexamethasone were growth restricted and showed systolic and diastolic dysfunction, with an increase in cardiomyocyte volume but decreased cardiomyocyte nuclear density in the left ventricle. Underlying mechanisms included a premature switch from tissue accretion to differentiation, increased oxidative stress, and activated signaling of cellular senescence. These findings, therefore, demonstrate that dexamethasone treatment can have direct detrimental off-target effects on the cardiovascular system in the developing embryo, which are independent of effects on the mother and/or placenta.
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Affiliation(s)
- Noor E. W. D. Teulings
- Institute of Metabolic Science-Metabolic Research Laboratories, University of Cambridge, Addenbrooke’s Hospital, Cambridge, UK
| | - Tessa A. C. Garrud
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - Youguo Niu
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - Katie L. Skeffington
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - Christian Beck
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - Nozomi Itani
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - Fiona G. Conlon
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - Kimberley J. Botting
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - Lisa M. Nicholas
- Institute of Metabolic Science-Metabolic Research Laboratories, University of Cambridge, Addenbrooke’s Hospital, Cambridge, UK
| | - Thomas J. Ashmore
- Institute of Metabolic Science-Metabolic Research Laboratories, University of Cambridge, Addenbrooke’s Hospital, Cambridge, UK
| | - Heather L. Blackmore
- Institute of Metabolic Science-Metabolic Research Laboratories, University of Cambridge, Addenbrooke’s Hospital, Cambridge, UK
| | - Wen Tong
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - Emily J. Camm
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
| | - Jan B. Derks
- Department of Perinatal Medicine, University Medical Centre, Utrecht, Netherlands
| | - Angela Logan
- Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Michael P. Murphy
- Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Susan E. Ozanne
- Institute of Metabolic Science-Metabolic Research Laboratories, University of Cambridge, Addenbrooke’s Hospital, Cambridge, UK
| | - Dino A. Giussani
- Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK
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Liu Z, Tong W, Su Y. Interaction effects of aging, word frequency, and predictability on saccade length in Chinese reading. PeerJ 2020; 8:e8860. [PMID: 32274270 PMCID: PMC7127474 DOI: 10.7717/peerj.8860] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 03/05/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND It was well known that age has an impact on word processing (word frequency or predictability) in terms of fixating time during reading. However, little is known about whether or not age modulates these impacts on saccade behaviors in Chinese reading (i.e., length of incoming/outgoing saccades for a target word). METHODS Age groups, predictability, and frequency of target words were manipulated in the present study. A larger frequency effect on lexical accessing (i.e., gaze duration) and on context integration (i.e., go-past time, total reading time), as well as larger predictability effects on data of raw total reading time, were observed in older readers when compared with their young counterparts. RESULTS Effect of predictability and frequency on word skipping and re-fixating rate did not differ across the two age groups. Notably, reliable interaction effects of age, along with word predictability and/or frequency, on the length of the first incoming/outgoing saccade for a target word were also observed. DISCUSSION Our findings suggest that the word processing function of older Chinese readers in terms of saccade targeting declines with age.
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Affiliation(s)
- Zhifang Liu
- Department of Psychology, Hangzhou Normal University, Hang Zhou, China
| | - Wen Tong
- Department of Psychology, Shanxi Normal University, Lin Fen, China
| | - Yongqiang Su
- Department of Psychology, Beijing Normal University, Bei Jing, China
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Chen JH, Tong W, Pu XF, Wang JZ. Long noncoding RNA CRNDE promotes proliferation, migration and invasion in prostate cancer through miR-101/Rap1A. Neoplasma 2020; 67:584-594. [PMID: 32182086 DOI: 10.4149/neo_2020_190621n534] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 10/02/2019] [Indexed: 11/08/2022]
Abstract
Prostate cancer (Pca) is the second frequent malignancy in men. Long noncoding RNAs (lncRNAs) have been reported to play essential roles in the progression of cancers, including Pca. LncRNA colorectal neoplasia differentially expressed (CRNDE) has been found to affect tumorigenesis in many cancers. However, the exact role and mechanism of CRNDE in Pca remain poorly understood. 64 Pca patients were recruited in this study. PC3 and 22RV1 cells were used in vitro experiments. The expressions of CRNDE, microRNA-101 (miR-101), and Ras-related protein 1A (Rap1A) were detected in vivo and in vitro by quantitative real-time polymerase chain reaction and western blot, respectively. Cell proliferation, apoptosis, migration, and invasion were investigated through cell counting kit-8, flow cytometry, and Transwell assays, respectively. The interaction between miR-101 and CRNDE or Rap1A was explored by bioinformatics analysis and luciferase reporter assay. High expression of CRNDE was shown in Pca tissues and cells and predicted poor outcomes of patients. Overexpression of CRNDE promoted cell proliferation, migration, and invasion but decreased apoptosis in Pca cells, while its knockdown showed an opposite effect. CRNDE was a decoy of miR-101 and its effect on Pca progression was reversed by miR-101. Rap1A was identified as a target of miR-101 and it attenuated the effect of miR-101 on Pca development. Moreover, the Rap1A protein level was positively regulated by CRNDE, which was weakened by miR-101. CRNDE contributed to cell proliferation, migration, and invasion by regulating the miR-101/Rap1A axis in Pca, providing a novel strategy for Pca treatment.
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Affiliation(s)
- J H Chen
- Department of Urology Surgery, The Chongqing General Hospital, Chongqing, China
| | - W Tong
- Department of Urology Surgery, The Chongqing General Hospital, Chongqing, China
| | - X F Pu
- Department of Urology Surgery, The Chongqing General Hospital, Chongqing, China
| | - J Z Wang
- Department of Urology Surgery, The Chongqing General Hospital, Chongqing, China
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Abstract
Cr2Ge2Te6 has recently emerged as a new two-dimensional ferromagnetic semiconductor (2DFMS) that is promising for spintronic applications. The origin of the ferromagnetism is a debatable point. In this study, ac/dc susceptibility and electronic spin resonance (ESR) measurements are performed to explore the origin of the ferromagnetism in Cr2Ge2Te6. Through the ac susceptibility scaling, the critical temperature TC = 62.84 K and δ = 5.24 from the critical isotherm, γ + β = 1.78 from the temperature dependence of the crossover line and γ = 1.43 from the temperature dependence of the susceptibility along the same line. Unlike Cr2Si2Te6 whose magnetism can be well described by the 2D-Ising model, Cr2Ge2Te6 cannot be simply described by a single theory model. Meanwhile, the origin of the abnormal critical behavior has been explored and it may be related to the presence of the possible magnetic correlation around the high temperature T* ∼ 160 K, which is confirmed by different probing measurements. The magnetic correlation at high temperature accompanied by the strong magnetic-crystalline anisotropy at low temperature plays an important role in the origin of the abnormal ferromagnetism in Cr2Ge2Te6. Our results may supply a typical reference to investigate the abnormal ferromagnetism of 2DFMSs.
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Affiliation(s)
- Y Sun
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, 230601, China
| | - W Tong
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230031, China
| | - X Luo
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, China.
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Tong W, Zhou C, Huang P, Ma J, Chang Y. Integration of micronucleus, comet, and Pig-a gene mutation endpoints into rat 15-day repeat-treatment studies: Proof-of-principle with Auramine O. Mutation Research/Genetic Toxicology and Environmental Mutagenesis 2019; 846:403072. [DOI: 10.1016/j.mrgentox.2019.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 06/30/2019] [Accepted: 07/02/2019] [Indexed: 01/05/2023]
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41
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Hussain S, Tong W, Whitlock R, Belley-Côté E, McClure G, Sibilio S, Tarride J, Lamy A. IS THE ROSS PROCEDURE A COST-EFFECTIVE ALTERNATIVE COMPARED TO MECHANICAL AORTIC VALVE REPLACEMENT IN NON-ELDERLY PATIENTS WITH AORTIC STENOSIS? Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.321] [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: 11/25/2022] Open
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Abstract
Six new silicon phases with direct band gaps were found through silicon atomic substitution of carbon in the known carbon structures via high-throughput calculations. The six newly discovered Si phases are in the space groups of Im3[combining macron]m, C2/c, I4/mcm, I4/mmm, P21/m, and P4/mbm, respectively. Their crystal structures, stabilities, mechanical properties, elastic anisotropy, and electronic and optical properties were systematically studied using first-principles density functional theory calculations. All the new phases were proved to be thermodynamically and mechanically stable at ambient pressure. The direct band gap values in the range of 0.658-1.470 eV and the excellent optoelectronic properties of these six Si allotropes suggest that they are promising photovoltaic materials compared to diamond silicon.
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Affiliation(s)
- Qun Wei
- School of Physics and Optoelectronic Engineering, Xidian University, Xi'an 710071, P. R. China.
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Wang D, Wang X, Tong W, Cui Y, Li X, Sun H. Umbelliferone Alleviates Lipopolysaccharide-Induced Inflammatory Responses in Acute Lung Injury by Down-Regulating TLR4/MyD88/NF-κB Signaling. Inflammation 2019; 42:440-448. [PMID: 30645708 DOI: 10.1007/s10753-018-00953-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This study investigated the protective effect and underlying mechanism of action of umbelliferone (Umb) against lipopolysaccharide (LPS)-induced acute lung injury (ALI). An intragastric Umb injection prior to the administration of LPS dramatically decreased the wet/dry lung weight ratio, attenuated inflammatory cell infiltration in lung tissue, and reduced the LPS-induced production of inflammatory cytokines, including monocyte chemotactic protein-1(MCP-1), interleukin (IL)-6, tumor necrosis factor-α (TNF-α), and IL-1β, in broncheoalveolar lavage fluid (BALF). In addition, Umb resulted in significant anti-oxidative effects as shown by decreased myeloperoxidase (MPO) and malondialdehyde (MDA) activity and increased superoxide dismutase (SOD) activity compared with the LPS group. Finally, the inhibitory effects of Umb on the expression of toll-like receptor 4 (TLR4)/myeloid differentiation protein 88 (MyD88)/nuclear factor-κB (NF-κB) signaling pathway proteins were also measured. Our results clearly indicated that Umb exerted significant protective effects on LPS-induced ALI by inhibiting the activation of the TLR4/MyD88/NF-κB pathway.
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Affiliation(s)
- Dongqiu Wang
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China
| | - Xia Wang
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China
| | - Wen Tong
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China
| | - Yuhong Cui
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China
| | - Xiuxian Li
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China
| | - Haiyun Sun
- Iintensive Care Unit, Heze Municipal Hospital, No. 2888, West Caozhou Road, Heze, 274031, China.
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Geng H, Tong W, Han F, Zhu K, Cao Y, Chen X. The Role of Tumor Oxygenation Tested by Magnetic Resonance Imaging (MRI) in Prostate Cancer Grading. Med Sci Monit 2019; 25:2505-2510. [PMID: 30950457 PMCID: PMC6463617 DOI: 10.12659/msm.913110] [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: 11/25/2022] Open
Abstract
Background Prostate cancer is a common malignant tumor in males. Prostate cancer grading is an important basis for evaluation of invasion. The purpose of this article was to use dynamic enhanced scan magnetic resonance imaging (MRI) to quantitatively investigate the relationship between tumor oxygenation value and prostate cancer pathological Gleason score. Material/Methods A total of 312 prostate cancer patients diagnosed by needle biopsy who received MRI dynamic enhanced scan were enrolled in this study. Multiparameter oxygen concentration image based on MRI was applied to test pO2 in tumors. Multiple spin resonance image relaxation time edit sequence and weak field diffusion model were used to estimate oxygen saturation level and pO2. hematoxylin and eosin staining and Gleason score were used to determine biological behavior and prognosis. Results According to the Gleason score system, there were 28 cases with a score of 10, 112 cases with a score of 9, 56 cases with a score of 8, and 116 cases with a score lower than 7. The enrolled patients were divided into groups: 116 cases into the middle-to-well differentiation group (Gleason score ≤7) and 196 cases into the poorly differentiation group (Gleason score at 8 to 10). Prostate cancer tumor oxygenation value was positively correlated with Gleason score (r=0.349, P<0.05) or PSA (r=0.432, P<0.05). Tumor oxygenation value in Gleason ≤7 group was obviously different from that in the group with Gleason score between 9 and 10 (P<0.05). Conclusions Tumor oxygenation value in prostate cancer was positively correlated with Gleason score. Tumor oxygenation value might be useful in clinics to evaluate prostate cancer grading and prognosis.
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Affiliation(s)
- Huaizhen Geng
- Department of Urology, Heze Municipal Hospital, Heze, Shandong, China (mainland)
| | - Wen Tong
- Department of Intensive Care Unit (ICU), Heze Municipal Hospital, Heze, Shandong, China (mainland)
| | - Fangzheng Han
- Department of Pathology, Heze Municipal Hospital, Heze, Shandong, China (mainland)
| | - Kunming Zhu
- Department of Radiology, Heze Municipal Hospital, Heze, Shandong, China (mainland)
| | - Yumei Cao
- Department of Cardiac Intervention, Heze Municipal Hospital, Heze, Shandong, China (mainland)
| | - Xiude Chen
- Department of Urology, Provincial Hospital Affiliated to Shandong University, Ji'nan, Shandong, China (mainland)
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Tong W. Potential reuse of oncology drugs in the treatment of rare diseases. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.1144] [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: 10/28/2022]
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Ashby K, Navarro Almario EE, Tong W, Borlak J, Mehta R, Chen M. Review article: therapeutic bile acids and the risks for hepatotoxicity. Aliment Pharmacol Ther 2018; 47:1623-1638. [PMID: 29701277 DOI: 10.1111/apt.14678] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 02/17/2018] [Accepted: 03/31/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Bile acids play important roles in cholesterol metabolism and signal through farnesoid X receptor and G protein-coupled receptors. Given their importance in liver biology, bile acid therapy enables therapeutic applications beyond the treatment of cholestatic liver disease. However, predicting hepatotoxicity of bile acids in humans is obscured due to inconsistent extrapolations of animal data to humans. AIM To review the evidence that could explain discordant bile acids hepatotoxicity observed in humans and animals. METHOD Literature search was conducted in PubMed using keywords "bile acid," "transporter," "hepatotoxicity," "clinical study," "animal study," "species difference," "mechanism," "genetic disorder." Relevant articles were selected for review. RESULTS Clinically significant hepatotoxicity was reported in response to certain bile acids, namely chenodeoxycholic acid, which was given a boxed warning for potential hepatotoxicity. The chemical structure, specifically the number and orientation of hydroxyl groups, significantly affects their hydrophobicity, an important factor in bile acid toxicity. Experimental studies show that hydrophobic bile acids can lead to liver injury through various mechanisms, such as death receptor signalling, mitochondrial dysfunction and inflammation. Although animal studies play a central role in investigating bile acid safety, there are considerable differences in bile acid composition, metabolism and hepatobiliary disposition across species. This does not allow appropriate safety inference, especially for predicting hepatotoxicity in humans. Exploring evidences stemming from inborn errors, genetic models of disease and toxicology studies further improves an understanding of bile acid hepatotoxicity. CONCLUSION Species differences should be considered in the development of bile acid related therapeutics. Although the mechanism of bile acid hepatotoxicity is still not fully understood, continued mechanistic studies will deepen our understanding.
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Affiliation(s)
- K Ashby
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR, USA
| | - E E Navarro Almario
- Office of Computational Science, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - W Tong
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR, USA
| | - J Borlak
- Hannover Medical School, Center of Pharmacology and Toxicology, Hannover, Germany
| | - R Mehta
- Division of Gastroenterology and Inborn Error Products, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - M Chen
- Division of Bioinformatics and Biostatistics, National Center for Toxicological Research, US Food and Drug Administration, Jefferson, AR, USA
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47
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Luo Z, Zhu M, Guo M, Lian Z, Tong W, Wang J, Zhang B, Wei W. Ultrasonic-Assisted Dispersion of ZnO Nanoparticles and Its Inhibition Activity to Trichoderma viride. J Nanosci Nanotechnol 2018; 18:2352-2360. [PMID: 29442903 DOI: 10.1166/jnn.2018.14397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The activity inhibition of fungi by ZnO nanoparticles (NPs) has shown huge potential applications in the area of hygienic coatings. However, the inhibition efficiency was limited due to the agglomeration of NPs. To obtain well-dispersed and highly stabilized ZnO nanofluids, ZnO NPs were capped with four kinds of surfactants under ultrasonication. The capping procedure was optimized by varying the dosage of surfactants, the ultrasonic duration, ultrasonic power and temperature. Capped ZnO nanofluids were then used for the inhibition of Trichoderma viride. The influence on the activity of the capping conditions, illumination, ZnO NPs content, humidity and temperature were investigated in details. Results suggest that well-dispersed ZnO NPs were obtained through ultrasonic-assisted functionalization using sodium polyacrylate as a dispersant. Moreover, capped ZnO nanofluids revealed long-term stability at pH above 6. The optimal capping procedure was obtained for a sonication power of 250 W, treatment duration of 40 min, dosage of 0.4% and temperature of 60 °C. Antifungal tests indicated that capped ZnO NPs showed an inhibition ability versus T. viride even in the dark. The antifungal ability of ZnO NPs increased with the increasing ZnO content, and humidity and temperature only affected the growth of fungi. Capped ZnO NPs showed an excellent antifungal performance even in the circumstance that was beneficial for the fungi growth (temperature of 30 °C, humidity of 95%), demonstrating the antimicrobial capability in practical applications.
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Affiliation(s)
- Zhengwei Luo
- College of Safety Science and Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Min Zhu
- College of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Mulin Guo
- College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 210009, P. R. China
| | - Zhouyang Lian
- College of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Wen Tong
- College of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Jirong Wang
- College of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
| | - Binghua Zhang
- Sinopec Yangzi Petrochemical Company Ltd., 778# Xinhua Road, Nanjing 210048, P. R. China
| | - Wuji Wei
- College of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, P. R. China
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McClure G, Belley-Cote E, Tong W, Jaffer I, Healey J, Singal R, Lamy A, Whitlock R. P3274Surgical ablation of atrial fibrillation evaluation (SAFE): a cost analysis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3274] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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49
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Luo S, Li Y, Ma R, Liu J, Xu P, Zhang H, Tang K, Ma J, Liu N, Zhang Y, Sun Y, Ji T, Liang X, Yin X, Liu Y, Tong W, Niu Y, Wang N, Wang X, Huang B. Downregulation of PCK2 remodels tricarboxylic acid cycle in tumor-repopulating cells of melanoma. Oncogene 2017; 36:3609-3617. [PMID: 28166201 DOI: 10.1038/onc.2016.520] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 11/23/2016] [Accepted: 12/27/2016] [Indexed: 12/26/2022]
Abstract
For cancer cells to proliferate, a balance must be built between biomass-forming, glucose-metabolized intermediates and ATP production. How intrinsic glucose carbon flow regulates this balance remains unclear. Here we show that mitochondrial phosphoenolpyruvate carboxykinase (PCK2), the hub molecule linking tricarboxylic acid (TCA) cycle, glycolysis and gluconeogenesis by conversion of mitochondrial oxaloacetate (OAA) to phosphoenolpyruvate, regulates glucose carbon flow direction in stem-like cells that repopulate tumors (tumor-repopulating cells (TRCs)). PCK2 downregulation accelerated biosynthesis and transportation of citrate from mitochondria to the cytosol, leading to cytosolic glucose carbon flow via OAA-malate-pyruvate and acetyl-CoA-fatty acid pathways in TRCs. On the other hand, downregulating PCK2 hindered fumarate carbon flows in TCA cycle, leading to attenuated oxidative phosphorylation. In pathological terms, PCK2 overexpression slowed TRC growth in vitro and impeded tumorigenesis in vivo. Overall, our work unveiled unexpected glucose carbon flows of TRCs in melanoma that have implications for targeting metabolic aspects of melanoma.
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Affiliation(s)
- S Luo
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China
| | - Y Li
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China
| | - R Ma
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China
| | - J Liu
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China
| | - P Xu
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China
| | - H Zhang
- State Key Laboratory of Medical Molecular Biology and Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - K Tang
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China
| | - J Ma
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China
| | - N Liu
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China
| | - Y Zhang
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China
| | - Y Sun
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China
| | - T Ji
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China
| | - X Liang
- State Key Laboratory of Medical Molecular Biology and Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Yin
- State Key Laboratory of Medical Molecular Biology and Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Liu
- State Key Laboratory of Medical Molecular Biology and Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - W Tong
- Department of Pathology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Niu
- Department of Pathology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - N Wang
- Laboratory for Cell Biomechanics and Regenerative Medicine, School of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China.,Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - X Wang
- State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - B Huang
- Department of Biochemistry and Molecular Biology, Tongji Medical College, Huazhong University of Science andTechnology, Wuhan, China.,State Key Laboratory of Medical Molecular Biology and Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Liu Z, Pan Y, Tong W, Liu N. Effects of adults aging on word encoding in reading Chinese: evidence from disappearing text. PeerJ 2017; 5:e2897. [PMID: 28123911 PMCID: PMC5244883 DOI: 10.7717/peerj.2897] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 12/11/2016] [Indexed: 11/30/2022] Open
Abstract
The effect of aging on the process of word encoding for fixated words and words presented to the right of the fixation point during the reading of sentences in Chinese was investigated with two disappearing text experiments. The results of Experiment 1 showed that only the 40-ms onset disappearance of word n disrupted young adults' reading performance. However, for old readers, the disappearance of word n caused disruptions until the onset time was 120 ms. The results of Experiment 2 showed that the disappearance of word n + 1 did not cause disruptions to young adults, but these conditions made old readers spend more time reading a sentence compared to the normal display condition. These results indicated a reliable aging effect on the process of word encoding when reading Chinese, and that the encoding process in the preview frame was more susceptible to normal aging compared to that in the fixation frame. We propose that sensory, cognitive, and specific factors related to the Chinese language are important contributors to these age-related differences.
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Affiliation(s)
- Zhifang Liu
- Department of Psychology, Ningbo University, Ningbo, Zhejiang, China
| | - Yun Pan
- Department of Psychology, Guizhou Normal University, Guiyang, Guizhou, China
| | - Wen Tong
- Department of Psychology, Shanxi Normal University, Linfen, Shanxi, China
| | - Nina Liu
- Academy of Psychology and Behavior, Tianjin Normal University, Tianjin, Tianjin, China
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