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Zhu X, Fu Z, Dutchak K, Arabzadeh A, Milette S, Steinberger J, Morin G, Monast A, Pilon V, Kong T, Adams BN, Prando Munhoz E, Hosein HJB, Fang T, Su J, Xue Y, Rayes R, Sangwan V, Walsh LA, Chen G, Quail DF, Spicer JD, Park M, Dankort D, Huang S. Cotargeting CDK4/6 and BRD4 Promotes Senescence and Ferroptosis Sensitivity in Cancer. Cancer Res 2024; 84:1333-1351. [PMID: 38277141 DOI: 10.1158/0008-5472.can-23-1749] [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: 06/12/2023] [Revised: 10/21/2023] [Accepted: 01/17/2024] [Indexed: 01/27/2024]
Abstract
Cyclin-dependent kinase 4/6 (CDK4/6) inhibitors are approved for breast cancer treatment and show activity against other malignancies, including KRAS-mutant non-small cell lung cancer (NSCLC). However, the clinical efficacy of CDK4/6 inhibitors is limited due to frequent drug resistance and their largely cytostatic effects. Through a genome-wide cDNA screen, we identified that bromodomain-containing protein 4 (BRD4) overexpression conferred resistance to the CDK4/6 inhibitor palbociclib in KRAS-mutant NSCLC cells. Inhibition of BRD4, either by RNA interference or small-molecule inhibitors, synergized with palbociclib to induce senescence in NSCLC cells and tumors, and the combination prolonged survival in a KRAS-mutant NSCLC mouse model. Mechanistically, BRD4-inhibition enhanced cell-cycle arrest and reactive oxygen species (ROS) accumulation, both of which are necessary for senescence induction; this in turn elevated GPX4, a peroxidase that suppresses ROS-triggered ferroptosis. Consequently, GPX4 inhibitor treatment selectively induced ferroptotic cell death in the senescent cancer cells, resulting in tumor regression. Cotargeting CDK4/6 and BRD4 also promoted senescence and ferroptosis vulnerability in pancreatic and breast cancer cells. Together, these findings reveal therapeutic vulnerabilities and effective combinations to enhance the clinical utility of CDK4/6 inhibitors. SIGNIFICANCE The combination of cytostatic CDK4/6 and BRD4 inhibitors induces senescent cancer cells that are primed for activation of ferroptotic cell death by targeting GPX4, providing an effective strategy for treating cancer.
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Affiliation(s)
- Xianbing Zhu
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Zheng Fu
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Kendall Dutchak
- Department of Biology, McGill University, Montreal, Quebec, Canada
| | - Azadeh Arabzadeh
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Simon Milette
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
- Department of Physiology, McGill University, Montreal, Quebec, Canada
| | - Jutta Steinberger
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Geneviève Morin
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Anie Monast
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Virginie Pilon
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Tim Kong
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Bianca N Adams
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Erika Prando Munhoz
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Hannah J B Hosein
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Tianxu Fang
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
- Department of Biomedical Engineering, McGill University, Montreal, Quebec, Canada
| | - Jing Su
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Yibo Xue
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Roni Rayes
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
- Department of Surgery, McGill University Health Center, Montreal, Quebec, Canada
| | - Veena Sangwan
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Logan A Walsh
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Guojun Chen
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
- Department of Biomedical Engineering, McGill University, Montreal, Quebec, Canada
| | - Daniela F Quail
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
- Department of Physiology, McGill University, Montreal, Quebec, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada
| | - Jonathan D Spicer
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
- Department of Surgery, McGill University Health Center, Montreal, Quebec, Canada
| | - Morag Park
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - David Dankort
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
- Department of Biology, McGill University, Montreal, Quebec, Canada
| | - Sidong Huang
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
- Department of Human Genetics, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
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Zhou XY, Zhu SY, Hong H, Fang T, Xu GZ. [Research on epidemiological characteristics of pneumonia and correlative factors of length of hospitalization in the elderly aged 60 years and older in Ningbo]. Zhonghua Liu Xing Bing Xue Za Zhi 2024; 45:230-236. [PMID: 38413062 DOI: 10.3760/cma.j.cn112338-20230714-00430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Objective: To investigate the epidemiological characteristics of pneumonia and the related factors of the length of hospitalization of pneumonia in the elderly aged 60 years and older in Ningbo in 2019. Methods: Data on hospitalized cases of pneumonia in the elderly aged 60 years and older in Ningbo in 2019 were collected through the regional health information platform, and the population data of Ningbo in 2019 were obtained through the Zhejiang Provincial Bureau of Statistics. A descriptive epidemiological analysis was conducted on hospitalized cases of pneumonia in the elderly population, and factors related to the length of hospitalization were explored. Results: A total of 15 956 hospitalized cases of pneumonia aged 60 years and older were reported in Ningbo in 2019, and the incidence of pneumonia requiring hospitalization was 1.02% (15 956/1 571 431). The incidence was 1.13% (8 613/760 357) in males and 0.83% (6 759/811 074) in females, and the ratio of male to female cases was 1.27∶1. The highest incidence was found in the ≥80 age group (2.52%), and the lowest incidence was found in the 60-69 age group (0.58%). March, February, and January were the peak period of pneumonia hospitalization. The main types of pneumonia diagnosed were not specified (65.12%), followed by bacterial pneumonia (34.60%). The M(Q1, Q3) of hospitalized patients with pneumonia was 9 (7, 13) days. The results of multivariate logistic regression analysis showed that gender (female: OR=0.911, 95%CI: 0.849-0.978) and older age (70-79 years old: OR=1.211, 95%CI: 1.111-1.321; ≥80 years old group: OR=1.486, 95%CI: 1.365-1.617), settlement method (self-payment: OR=0.567, 95%CI: 0.464-0.691), higher level of hospitals (Grade Ⅱ: OR=1.902,95%CI:1.723-2.100; Grade Ⅲ: OR=1.546,95%CI:1.407-1.698) were associated with the length of hospitalization for pneumonia in people aged 60 years and older in Ningbo. Conclusions: Hospitalization with pneumonia in people aged 60 years and older was high in winter and spring, men and older adults were in high-risk groups in Ningbo in 2019. Gender, age, billing method, and level of hospitals may be related factors to the length of hospitalization for pneumonia.
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Affiliation(s)
- X Y Zhou
- School of Public Health, Health Science Center, Ningbo University, Ningbo 315211, China
| | - S Y Zhu
- School of Public Health, Health Science Center, Ningbo University, Ningbo 315211, China
| | - H Hong
- School of Public Health, Health Science Center, Ningbo University, Ningbo 315211, China
| | - T Fang
- School of Public Health, Health Science Center, Ningbo University, Ningbo 315211, China
| | - G Z Xu
- School of Public Health, Health Science Center, Ningbo University, Ningbo 315211, China
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Fang T, Cao X, Wang L, Chen M, Deng Y, Chen G. Bioresponsive and immunotherapeutic nanomaterials to remodel tumor microenvironment for enhanced immune checkpoint blockade. Bioact Mater 2024; 32:530-542. [PMID: 38026439 PMCID: PMC10660011 DOI: 10.1016/j.bioactmat.2023.10.023] [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: 09/01/2023] [Revised: 10/20/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Immune checkpoint blockade (ICB) therapy is a revolutionary approach to treat cancers, but still have limited clinical applications. Accumulating evidence pinpoints the immunosuppressive characteristics of the tumor microenvironment (TME) as one major obstacle. The TME, characterized by acidity, hypoxia and elevated ROS levels, exerts its detrimental effects on infiltrating anti-tumor immune cells. Here, we developed a TME-responsive and immunotherapeutic catalase-loaded calcium carbonate nanoparticles (termed as CAT@CaCO3 NPs) as the simple yet versatile multi-modulator for TME remodeling. CaCO3 NPs can consume protons in the acidic TME to normalize the TME pH. CAT catalyzed the decomposition of ROS and thus generated O2. The released Ca2+ led to Ca2+ overload in the tumor cells which then triggered the release of damage-associated molecular patterns (DAMP) signals to initiate anti-tumor immune responses, including tumor antigen presentation by dendritic cells. Meanwhile, CAT@CaCO3 NPs-induced immunosupportive TME also promoted the polarization of the M2 tumor-associated macrophages to the M1 phenotype, further enhancing tumor antigen presentation. Consequently, T cell-mediated anti-tumor responses were activated, the efficacy of which was further boosted by aPD-1 immune checkpoint blockade. Our study demonstrated that local treatment of CAT@CaCO3 NPs and aPD-1 combination can effectively evoke local and systemic anti-tumor immune responses, inhibiting the growth of treated tumors and distant diseases.
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Affiliation(s)
- Tianxu Fang
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada
| | - Xiaona Cao
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada
| | - Li Wang
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada
| | - Mo Chen
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada
| | - Yueyang Deng
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada
| | - Guojun Chen
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada
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Li L, Hong H, Zhou DS, Fang T, Yang HY, Bian GL, Xu GZ. [Epidemiological characteristics and spatiotemporal distribution of schizophrenia in Ningbo, 2018-2022]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1916-1920. [PMID: 38129148 DOI: 10.3760/cma.j.cn112338-20230522-00325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Objective: To explore the temporal and spatial distribution characteristics of reported incidence of schizophrenia in Ningbo from 2018 to 2022 and to provide a scientific basis for rational allocation of mental health resources and comprehensive prevention and treatment of schizophrenia. Methods: The reported incidence data of schizophrenia from 2018 to 2022 were collected from Ningbo's mental health information management system, and the reported incidence was calculated by township. The spatial correlation analysis and the spatiotemporal scan analysis were used to study the spatiotemporal distribution of schizophrenia. Results: The reported incidence of schizophrenia decreased from 2018 to 2022, with 4 133 new cases reported, and the annual average reported incidence was 9.76/100 000. Global and local spatial autocorrelation analysis showed positive spatial correlations and hot spots in 2018-2020. The space-time scan analysis showed an incidence cluster in Dongqiao Town, Haishu District, during 2018-2019. The RR was 2.46, and the log-likelihood ratio was 256.89. Conclusions: The reported incidence of schizophrenia in Ningbo has obvious temporal and spatial aggregation, and the high incidence area explored can provide clues for further research on the correlation between environmental factors and the incidence of schizophrenia and has certain guiding significance for the rational allocation of mental health resources in Ningbo.
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Affiliation(s)
- L Li
- Department of Psychiatry, Ningbo Kangning Hospital/Affiliated Mental Health Centre, Ningbo University, Ningbo 315201, China
| | - H Hong
- School of Medicine, Ningbo University, Ningbo 315211, China
| | - D S Zhou
- Department of Psychiatry, Ningbo Kangning Hospital/Affiliated Mental Health Centre, Ningbo University, Ningbo 315201, China
| | - T Fang
- School of Medicine, Ningbo University, Ningbo 315211, China
| | - H Y Yang
- Department of Psychiatry, Ningbo Kangning Hospital/Affiliated Mental Health Centre, Ningbo University, Ningbo 315201, China
| | - G L Bian
- Department of Psychiatry, Ningbo Kangning Hospital/Affiliated Mental Health Centre, Ningbo University, Ningbo 315201, China
| | - G Z Xu
- School of Medicine, Ningbo University, Ningbo 315211, China
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Shiraiwa M, Fang T, Wei J, Lakey P, Hwang B, Edwards KC, Kapur S, Mena J, Huang YK, Digman MA, Weichenthal SA, Nizkorodov S, Kleinman MT. Chemical and Cellular Formation of Reactive Oxygen Species from Secondary Organic Aerosols in Epithelial Lining Fluid. Res Rep Health Eff Inst 2023:1-56. [PMID: 38420854] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024] Open
Abstract
INTRODUCTION Oxidative stress mediated by reactive oxygen species (ROS) is a key process for adverse aerosol health effects. Secondary organic aerosols (SOA) account for a major fraction of particulate matter with aerodynamic diameter ≤2.5 µm (PM2.5). PM2.5 inhalation and deposition into the respiratory tract causes the formation of ROS by chemical reactions and phagocytosis of macrophages in the epithelial lining fluid (ELF), but their relative contributions are not well quantified and their link to oxidative stress remains uncertain. The specific aims of this project were (1) elucidating the chemical mechanism and quantifying the formation kinetics of ROS in the ELF by SOA; (2) quantifying the relative importance of ROS formation by chemical reactions and macrophages in the ELF. METHODS SOA particles were generated using reaction chambers from oxidation of various precursors including isoprene, terpenes, and aromatic compounds with or without nitrogen oxides (NOx). We collected size-segregated PM at two highway sites in Anaheim, CA, and Long Beach, CA, and at an urban site in Irvine, CA, during two wildfire events. The collected particles were extracted into water or surrogate ELF that contained lung antioxidants. ROS generation was quantified using electron paramagnetic resonance (EPR) spectroscopy with a spin-trapping technique. PM oxidative potential (OP) was also quantified using the dithiothreitol assay. In addition, kinetic modeling was applied for analysis and interpretation of experimental data. Finally, we quantified cellular superoxide release by RAW264.7 macrophage cells upon exposure to quinones and isoprene SOA using a chemiluminescence assay as calibrated with an EPR spin-probing technique. We also applied cellular imaging techniques to study the cellular mechanism of superoxide release and oxidative damage on cell membranes. RESULTS Superoxide radicals (·O2-) were formed from aqueous reactions of biogenic SOA generated by hydroxy radical (·OH) photooxidation of isoprene, β-pinene, α-terpineol, and d-limonene. The temporal evolution of ·OH and ·O2- formation was elucidated by kinetic modeling with a cascade of aqueous reactions, including the decomposition of organic hydroperoxides (ROOH), ·OH oxidation of primary or secondary alcohols, and unimolecular decomposition of α-hydroxyperoxyl radicals. Relative yields of various types of ROS reflected the relative abundance of ROOH and alcohols contained in SOA, which generated under high NOx conditions, exhibited lower ROS yields. ROS formation by SOA was also affected by pH. Isoprene SOA had higher ·OH and organic radical yields at neutral than at acidic pH. At low pH ·O2- was the dominant species generated by all types of SOA. At neutral pH, α-terpineol SOA exhibited a substantial yield of carbon-centered organic radicals (R·), while no radical formation was observed by aromatic SOA. Organic radicals in the ELF were formed by mixtures of Fe2+ and SOA generated from photooxidation of isoprene, α-terpineol, and toluene. The molar yields of organic radicals by SOA were 5-10 times higher in ELF than in water. Fe2+ enhanced organic radical yields by a factor of 20-80. Ascorbate mediated redox cycling of iron ions and sustained organic peroxide decomposition, as supported by kinetic modeling reproducing time- and concentration-dependence of organic radical formation, as well as by additional experiments observing the formation of Fe2+ and ascorbate radicals in mixtures of ascorbate and Fe3+. ·OH and superoxide were found to be efficiently scavenged by antioxidants. Wildfire PM mainly generated ·OH and R· with minor contributions from superoxide and oxygen-centered organic radicals (RO·). PM OP was high in wildfire PM, exhibiting very weak correlation with radical forms of ROS. These results were in stark contrast with PM collected at highway and urban sites, which generated much higher amounts of radicals dominated by ·OH radicals that correlated well with OP. By combining field measurements of size-segregated chemical composition, a human respiratory tract model, and kinetic modeling, we quantified production rates and concentrations of different types of ROS in different regions of the ELF by considering particle-size-dependent respiratory deposition. While hydrogen peroxide (H2O2) and ·O2- production were governed by Fe and Cu ions, ·OH radicals were mainly generated by organic compounds and Fenton-like reactions of metal ions. We obtained mixed results for correlations between PM OP and ROS formation, providing rationale and limitations of the use of oxidative potential as an indicator for PM toxicity in epidemiological and toxicological studies. Quinones and isoprene SOA activated nicotinamide adenine dinucleotide phosphate (NADPH) oxidase in macrophages, releasing massive amounts of superoxide via respiratory burst and overwhelming the superoxide formation by aqueous chemical reactions in the ELF. The threshold dose for macrophage activation was much smaller for quinones compared with isoprene SOA. The released ROS caused lipid peroxidation to increase cell membrane fluidity, inducing oxidative damage and stress. Further increases of doses led to the activation of antioxidant response elements, reducing the net cellular superoxide production. At very high doses and long exposure times, chemical production became comparably important or dominant if the escalation of oxidative stress led to cell death. CONCLUSIONS The mechanistic understandings and quantitative information on ROS generation by SOA particles provided a basis for further elucidation of adverse aerosol health effects and oxidative stress by PM2.5. For a comprehensive assessment of PM toxicity and health effects via oxidative stress, it is important to consider both chemical reactions and cellular processes for the formation of ROS in the ELF. Chemical composition of PM strongly influences ROS formation; further investigations are required to study ROS formation from various PM sources. Such research will provide critical information to environmental agencies and policymakers for the development of air quality policy and regulation.
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Affiliation(s)
- M Shiraiwa
- Department of Chemistry, University of California, Irvine, CA, USA
| | - T Fang
- Department of Chemistry, University of California, Irvine, CA, USA
| | - J Wei
- Department of Chemistry, University of California, Irvine, CA, USA
| | - Psj Lakey
- Department of Chemistry, University of California, Irvine, CA, USA
| | - Bch Hwang
- Department of Chemistry, University of California, Irvine, CA, USA
| | - K C Edwards
- Department of Chemistry, University of California, Irvine, CA, USA
| | - S Kapur
- Department of Chemistry, University of California, Irvine, CA, USA
| | - Jem Mena
- Division of Occupational and Environmental Medicine, University of California, Irvine, CA, USA
| | - Y-K Huang
- Department of Biomedical Engineering, University of California, Irvine, CA, USA
| | - M A Digman
- Department of Biomedical Engineering, University of California, Irvine, CA, USA
| | - S A Weichenthal
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Canada
| | - S Nizkorodov
- Department of Chemistry, University of California, Irvine, CA, USA
| | - M T Kleinman
- Division of Occupational and Environmental Medicine, University of California, Irvine, CA, USA
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Fang T, Cao X, Shen B, Chen Z, Chen G. Injectable cold atmospheric plasma-activated immunotherapeutic hydrogel for enhanced cancer treatment. Biomaterials 2023; 300:122189. [PMID: 37307777 DOI: 10.1016/j.biomaterials.2023.122189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/19/2023] [Accepted: 05/31/2023] [Indexed: 06/14/2023]
Abstract
Despite the promise of immune checkpoint blockade (ICB) for cancer treatment, challenges associated with this therapy still exist, including low response rates and severe side effects in patients. Here, we report a hydrogel-mediated combination therapy for enhanced ICB therapy. Specifically, cold atmospheric plasma (CAP), an ionized gas consisting of therapeutically effective reactive oxygen species (ROS) and reactive nitrogen species (RNS), can effectively induce cancer immunogenic cell death, releasing tumor-associated antigens in situ and initiating anti-tumor immune responses, which, therefore, can synergistically augment the efficacy of immune checkpoint inhibitors. To minimize the systemic toxicity of immune checkpoint inhibitors and improve the tissue penetration of CAP, an injectable Pluronic hydrogel was employed as a delivery method. Our results show that major long-lived ROS and RNS in CAP can be effectively persevered in Pluronic hydrogel and remain efficacious in inducing cancer immunogenic cell death after intratumoral injection. Our findings suggest that local hydrogel-mediated combination of CAP and ICB treatment can evoke both strong innate and adaptive, local and systemic anti-tumor immune responses, thereby inhibiting both tumor growth and potential metastatic spread.
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Affiliation(s)
- Tianxu Fang
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada; Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada
| | - Xiaona Cao
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada; Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada; School of Nursing, Tianjin Medical University, Tianjin, China
| | - Bingzheng Shen
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada; Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada
| | - Zhitong Chen
- Institute of Biomedical and Health Engineering, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China; Center for Advanced Therapy, National Innovation Center for Advanced Medical Devices, Shenzhen, China.
| | - Guojun Chen
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada; Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada.
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Yi K, Kong H, Lao YH, Li D, Mintz RL, Fang T, Chen G, Tao Y, Li M, Ding J. Engineered Nanomaterials to Potentiate CRISPR/Cas9 Gene Editing for Cancer Therapy. Adv Mater 2023:e2300665. [PMID: 37437039 DOI: 10.1002/adma.202300665] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 06/10/2023] [Accepted: 07/09/2023] [Indexed: 07/14/2023]
Abstract
Clustered regularly interspaced short palindromic repeats/associated protein 9 (CRISPR/Cas9) gene-editing technology holds significant promise for manipulating single or multiple tumor-associated genes and engineering immune cells to treat cancers. Currently, most gene-editing strategies rely on viral delivery; yet, while being efficient, many limitations, mainly from safety and packaging capacity considerations, hinder the use of viral CRISPR vectors in cancer therapy. In contrast, the recent development of non-viral CRISPR/Cas9 nanoformulations has paved the way for better cancer gene editing, as these nanoformulations can be engineered to improve safety, efficiency, and specificity through optimizing the packaging capacity, pharmacokinetics, and targetability. In this review, we highlight the advance in non-viral CRISPR delivery and discuss how these approaches could be potentially used to treat cancers in addressing the aforementioned issues, followed by our perspectives in designing a proper CRISPR/Cas9-based cancer nanomedicine system with translational potential. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Ke Yi
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Sun Yat-sen University, 600 Tianhe Road, Guangzhou, 510630, P. R. China
| | - Huimin Kong
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Sun Yat-sen University, 600 Tianhe Road, Guangzhou, 510630, P. R. China
| | - Yeh-Hsing Lao
- Department of Pharmaceutical Sciences, University at Buffalo, The State University of New York, Buffalo, NY, 14214, United States
| | - Di Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
| | - Rachel L Mintz
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, 63110, United States
| | - Tianxu Fang
- Department of Biomedical Engineering, Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, H3G 0B1, Canada
| | - Guojun Chen
- Department of Biomedical Engineering, Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, H3G 0B1, Canada
| | - Yu Tao
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Sun Yat-sen University, 600 Tianhe Road, Guangzhou, 510630, P. R. China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, Center for Nanomedicine, Sun Yat-sen University, 600 Tianhe Road, Guangzhou, 510630, P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, P. R. China
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Abstract
The CRISPR-Cas9 technology has changed the landscape of genome editing and has demonstrated extraordinary potential for treating otherwise incurable diseases. Engineering strategies to enable efficient intracellular delivery of CRISPR-Cas9 components has been a central theme for broadening the impact of the CRISPR-Cas9 technology. Various non-viral delivery systems for CRISPR-Cas9 have been investigated given their favorable safety profiles over viral systems. Many recent efforts have been focused on the development of stimuli-responsive non-viral CRISPR-Cas9 delivery systems, with the goal of achieving efficient and precise genome editing. Stimuli-responsive nanoplatforms are capable of sensing and responding to particular triggers, such as innate biological cues and external stimuli, for controlled CRISPR-Cas9 genome editing. In this Review, we overview the recent advances in stimuli-responsive nanoformulations for CRISPR-Cas9 delivery, highlight the rationale of stimuli and formulation designs, and summarize their biomedical applications.
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Affiliation(s)
- Tianxu Fang
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada.,Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada
| | - Xiaona Cao
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada.,Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada.,School of Nursing, Tianjin Medical University, Tianjin, China
| | - Mysha Ibnat
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada.,Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada
| | - Guojun Chen
- Department of Biomedical Engineering, McGill University, Montreal, QC, H3G 0B1, Canada. .,Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, QC, H3G 0B1, Canada.
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9
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Hong H, Fang T, Yi B, Xu GZ. [Effectiveness of precise prevention and control strategies of dynamic zero COVID-19 in Ningbo, Zhejiang province]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:669-673. [PMID: 35589570 DOI: 10.3760/cma.j.cn112338-20220208-00100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To evaluate effectiveness of the precise prevention and control strategies of dynamic zero COVID-19 in Ningbo, Zhejiang province. Methods: Based on the incidence data of COVID-19 and case epidemiological survey report in Ningbo in December 2021, the incidence curve of COVID-19 was generated and a dynamics model was developed to estimate the case number of under different intervention measures. The basic reproduction number (R0) and real-time reproduction number (Rt) were calculated to evaluate intervention effect. Results: A total of 74 cases of COVID-19 had been confirmed in Ningbo as of 17 December, 2021. The R0 was estimated to be 4.3. With the strengthening of prevention and control measures, the Rt showed a gradual downward trend, dropping to below 1.0 on December 11 and 0.4 on December 14. The model fitting results showed that the actual case number was close to the estimated case number (76 cases) when the effectiveness of intervention was 90%. The number of cases decreased by 98.4% compared with that if no intervention was taken. Conclusion: The precise prevention and control strategies of dynamic zero COVID-19 have obvious effect, which can facilitate the rapid control of COVID-19 epidemic in Ningbo.
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Affiliation(s)
- H Hong
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - T Fang
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - B Yi
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - G Z Xu
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
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10
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Wei Y, Wang Z, Yang J, Xu R, Deng H, Ma S, Fang T, Zhang J, Shen Q. Reactive oxygen species / photothermal therapy dual-triggered biomimetic gold nanocages nanoplatform for combination cancer therapy via ferroptosis and tumor-associated macrophage repolarization mechanism. J Colloid Interface Sci 2022; 606:1950-1965. [PMID: 34695762 DOI: 10.1016/j.jcis.2021.09.160] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 06/17/2021] [Revised: 09/06/2021] [Accepted: 09/26/2021] [Indexed: 12/12/2022]
Abstract
With the continuous development of cancer nanotechnology, an important trend in the research is to combine the broad application prospects of functional nanomaterials with recent biological discoveries and technological advances. Herein, a cancer cell membrane-camouflaged gold nanocage loading doxorubicin (DOX) and l-buthionine sulfoximine (BSO) (denoted as m@Au-D/B NCs) was constructed as an innovative nanoplatform to confer promising cancer combination therapy by evoking effective ferroptosis and immune responses. Briefly, the loading of BSO and DOX could induce ferroptosis through simultaneous effective glutathione (GSH) consumption and reactive oxygen species (ROS) accumulation. Gold nanocages (AuNCs) with distinct anti-tumor application performance was utilized as ideal nanocarrier for drug loading, evoking photothermal effects and photochemical catalysis to generate more ROS under near-infrared (NIR) irradiation. Moreover, m@Au-D/B NCs-mediated photothermal therapy (PTT) combined with ROS production could repolarize the tumor-associated macrophages (TAMs) from pro-tumor (M2) phenotype to anti-tumor (M1) phenotype, thus improving tumor-suppressive immune environment and then promoting the activation of effector cells and release of pro-inflammatory cytokines, in which the antitumor responses were evoked robustly in a methodical approach. The anti-tumor effects in vivo implied that m@Au-D/B NCs could significantly inhibit tumor growth without severe toxicity. Hence, this homotypic targeting nanosystem could offer an auspicious anticancer access by triggering combination cancer therapy via ferroptosis and tumor-associated macrophage repolarization mechanism.
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Affiliation(s)
- Yawen Wei
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhihua Wang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jie Yang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Rui Xu
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Huizi Deng
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Siyu Ma
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Tianxu Fang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jun Zhang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Qi Shen
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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11
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Zhang H, Zhu J, Li M, Chen G, Chen Q, Fang T. Supramolecular biomaterials for enhanced cancer immunotherapy. J Mater Chem B 2022; 10:7183-7193. [DOI: 10.1039/d2tb00048b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cancer immunotherapy has achieved promising clinical results. However, many limitations associated with current cancer immunotherapy still exist, including low response rates and severe adverse effects in patients. Engineering biomaterials for...
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12
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Zuo T, Fang T, Zhang J, Yang J, Xu R, Wang Z, Deng H, Shen Q. pH-Sensitive Molecular-Switch-Containing Polymer Nanoparticle for Breast Cancer Therapy with Ferritinophagy-Cascade Ferroptosis and Tumor Immune Activation. Adv Healthc Mater 2021; 10:e2100683. [PMID: 34535975 DOI: 10.1002/adhm.202100683] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [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: 04/09/2021] [Revised: 08/24/2021] [Indexed: 12/30/2022]
Abstract
Ferritin internalized into tumor cells is degraded and releases iron ions via ferritinophagy. Iron ions participate in Fenton reaction to produce reactive oxygen species for lipid peroxidation and ferroptosis. Inhibition of indoleamine-2,3-dioxygenase (IDO) decreases tryptophan elimination to induce T cells activation for tumor immunosuppression relief. The active tumor targeting nanoparticles containing ferritin and a pH-sensitive molecular-switch (FPBC@SN) are developed to utilize ferritinophagy-cascade ferroptosis and tumor immunity activation for cancer therapy. FPBC@SN disintegrates in acidic cytoplasm and releases sorafenib (SRF) and IDO inhibitor (NLG919). SRF upregulates nuclear receptor coactivator 4 (NCOA4) to induce ferritin and endogenous iron pool degradation by ferritinophagy, then obtained iron ions participate in the Fenton reaction to produce lipid peroxide (LPO). Meanwhile, SRF blocks glutathione synthesis to downregulate glutathione peroxidase 4 (GPX4) which can scavenge LPO as a different pathway from ferritinophagy to promote ferroptosis in tumor cells. NLG919 inhibits IDO to reduce tryptophan metabolism, so immunity in tumors is aroused to anti-tumor. In vitro and in vivo experiments prove FPBC@SN inhibits tumor cell growth and metastasis, indicating the potential of FPBC@SN for breast cancer therapy based on the combination of ferritinophagy-cascade ferroptosis and tumor immunity activation.
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Affiliation(s)
- Tiantian Zuo
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Tianxu Fang
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Jun Zhang
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Jie Yang
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Rui Xu
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Zhihua Wang
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Huizi Deng
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Qi Shen
- School of Pharmacy Shanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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13
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Wang W, Zhang SL, Liu FF, Fang T, Liu SD, Wang CP, Xing Y, Liu Y, Jin B. Research Progress on Pathological Fibrosis of Sinoatrial Node. Fa Yi Xue Za Zhi 2021; 37:225-232. [PMID: 34142485 DOI: 10.12116/j.issn.1004-5619.2020.400820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Indexed: 11/30/2022]
Abstract
Abstract Human heart rhythm is mainly regulated and controlled by the sinoatrial node. Fibrosis plays an important regulating role in adjusting the structural and functional integrity of the sinoatrial node pacemaker complex. In physiological state, the fibrosis degree of sinoatrial node is negatively correlated with heart rate, positively correlated with age and heart size, and can maintain a relatively stable heart rate. Pathological fibrosis of sinoatrial node can induce various types of arrhythmias which can result in sudden death. Determination of the mechanisms related to sinoatrial node pathological fibrosis could provide a target for clinical treatment of sinoatrial node fibrosis and diagnosis basis for forensic pathologists. This paper reviews the main mechanism of sinoatrial node pathological fibrosis, including abnormal activation of cardiac fibroblast cells in sinoatrial node, hyperplasia of epicardial adipose tissue, calcium clock disorder, artery stenosis, etc., introduces the test methods, diagnostic criteria as well as its role in sudden cardiac death and discusses the potential application, to provide reference for relevant research and application.
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Affiliation(s)
- W Wang
- Department of Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - S L Zhang
- Department of Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - F F Liu
- Department of Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - T Fang
- Department of Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - S D Liu
- Department of Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - C P Wang
- Shehong Public Security Bureau, Shehong 629200, Sichuan Province, China
| | - Y Xing
- Department of Forensic Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Y Liu
- Department of Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - B Jin
- Department of Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
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14
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Deng H, Yang Y, Zuo T, Fang T, Xu Y, Yang J, Zhang J, Shen Q. Multifunctional ZnO@CuS nanoparticles cluster synergize chemotherapy and photothermal therapy for tumor metastasis. Nanomedicine 2021; 34:102399. [PMID: 33864912 DOI: 10.1016/j.nano.2021.102399] [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] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/03/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022]
Abstract
The poor drug delivery and unsatisfying therapeutic effects remain to be the primary challenges for cancer therapy. Nanosystem that combines multiple functions into a single platform is an ideal strategy. Here, a smart drug delivery nanoplatform (Z@C-D/P) based on ZnO@CuS nanoparticles, loaded with doxorubicin (DOX) and pirfenidone (PFD) was constructed. Importantly, the β-CD-DMA and PEG-DMA could be activated in the mild acidic tumor microenvironment, then the nanosystem underwent charge reversal and PFD release. PFD could inhibit cancer-associated fibroblasts (CAFs) activation and enhance tumor penetration. And the residual nanostructure ZnO@CuS could trigger cascade amplified ROS generation to induce tumor cell death. The photothermal effect further strengthened the anti-tumor efficacy. Finally, the nanosystem showed remarkable inhibition of tumor growth (89.7%) and lung metastasis. The innovatively designed nanosystem integrating chemotherapy and photothermal effect would provide a promising strategy in breast cancer therapy.
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Affiliation(s)
- Huizi Deng
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yifan Yang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Tiantian Zuo
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Tianxu Fang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Yingxin Xu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Jie Yang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Jun Zhang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
| | - Qi Shen
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China.
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15
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Zhao XF, Ye S, Ma R, Dong HJ, Fang T, Xu GZ. [Seroepidemiology of pertussis in healthy population in Ningbo, 2019]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:638-642. [PMID: 34814443 DOI: 10.3760/cma.j.cn112338-20200629-00894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To understand the seroepidemiological characteristics of pertussis in healthy population in Ningbo, and estimate the overall incidence of pertussis. Methods: A cross-sectional survey method was used in this study. A total of 1 206 healthy residents in 9 age groups were stratified randomly selected from 3 counties of Ningbo. Serum samples were collected from the subjects, and the pertussis toxin immunoglobulin G antibody (PT-IgG) levels were measured quantitatively by enzyme-linked immunosorbent assay (ELISA). Results: The mean PT-IgG seropositive rate in the subjects was 0.91% (95%CI:0.45%-1.63%) with a geometric mean titer (GMT) of 3.10 (95%CI:2.86-3.36) IU/ml. The seropositive rates ranged from 0.00% to 1.68%, and the GMTs ranged from 2.08 IU/ml to 5.28 IU/ml in 9 age groups. The incidence rate of pertussis was estimated to be 4 572.81 per 100 000 in age group ≥5 years (95%CI:1 807.30 per 100 000-9 348.12 per 100 000), and the peak of estimated incidence rates were found in age group 5- years (9 301.62 per 100 000, 95%CI:1 121.77 per 100 000-33 154.68 per 100 000) and age group ≥50 years old (8 967.02 per 100 000, 95%CI: 1 059.45 per 100 000-31 845.94 per 100 000). Conclusions: The actual incidence of pertussis was high in Ningbo in 2019. As a result of waning immunity after vaccination, pertussis can occur in adolescents and adults. The pertussis surveillance should be strengthened and the pertussis vaccination strategy should be improved.
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Affiliation(s)
- X F Zhao
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - S Ye
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - R Ma
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - H J Dong
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - T Fang
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - G Z Xu
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
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16
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Pan XX, Chen Y, Wang AH, Wang JM, Ye LX, Gu SH, Fang T, Xu GZ. [Study on transmission dynamic of 15 clusters of COVID-2019 cases in Ningbo]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 41:2010-2014. [PMID: 32397699 DOI: 10.3760/cma.j.cn112338-20200330-00466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To describe the basic characteristics of clusters of coronavirus diseases 2019 (COVID-19) cases in Ningbo, Zhejiang province, and evaluate the generation time (Tg) and basic reproduction number (R(0)) of COVID-19. Methods: The basic information and onset times of the clusters of COVID-19 cases in Ningbo were investigated, the inter-generational interval of the cases were fitted by using gamma distribution, and the R(0) was calculated based on the SEIR model. Results: In the 15 clusters of COVID-19 cases, a total of 52 confirmed cases, 5 cases of nucleic acid-positive asymptomatic cases. The cases occurred from January 23 to February 4, the cases were mainly women. The incubation period was (6.11±3.38) days, and the median was 5 days. The Tg was (6.93±3.70) days. There were no significant differences in Tg between age group<60 years and age group 60 years and above, and between men and women (P=0.551). According to the Tg calculated in this paper, the R(0) of COVID-19 in Ningbo was 3.06 (95%CI: 2.64- 3.51); according to the reported case transmission interval of 7.5 days in the literature, the R(0) was 3.32 (95%CI: 2.51-9.38). Conclusion: There is no age and gender specific differences in the Tg of clusters of COVID-19 cases in Ningbo, and COVID-19 has high infectivity and spreading power in early phase.
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Affiliation(s)
- X X Pan
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - Y Chen
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - A H Wang
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - J M Wang
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - L X Ye
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - S H Gu
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - T Fang
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
| | - G Z Xu
- Ningbo Prefectural Center for Disease Control and Prevention, Ningbo 315010, China
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Wang Z, Xu Y, Wu G, Zuo T, Zhang J, Yang J, Yang Y, Fang T, Shen Q. Dual-Responsive and Deep-Penetrating Nanomicelles for Tumor Therapy via Extracellular Matrix Degradation and Oxidative Stress. ACS Biomater Sci Eng 2021; 7:166-179. [PMID: 33372514 DOI: 10.1021/acsbiomaterials.0c01394] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Tumor microenvironment (TME), with complex composition, plays a vital role in the occurrence, development, and metastasis of tumors. TME becomes an important obstacle to the accessibility of nanotherapy, thus indicating the need to improve the functional design to overcome this challenge. In this study, we generate an intelligent nano-drug-delivery system (DOX@PssP-Hh NPs) with dual environmental response, which involves heparanase (HPSE) in TME and glutathione (GSH) in tumor cells. The nanosystem consists of a nanoskeleton formed by self-assembly of mPEG-ss-PEI and α-CD (PssP), chemotherapy drug doxorubicin (DOX) for enhancing antitumor efficacy, together with hyaluronidase (HAase), which is designed to degrade extracellular matrix to increase drug penetration, and an outer shell of heparin. Through the process of "responsive disintegration-remodeling tumor microenvironment-enhancing drug penetration-inducing oxidative stress", the semi-rotaxaneself-assembled nanomicelles were constructed to achieve the progressive function. DOX@PssP-Hh NPs with the size of 81.85 ± 1.85 nm exhibited satisfactory cytotoxicity (IC50 = 0.80 ± 0.33 μg/mL). With the disulfide bond-mediated GSH depletion and DOX-mediated reactive oxygen species (ROS) production, treatment with DOX@PssP-Hh NPs prominently reduced glutathione peroxidase 4 (GPX4) level and would lead to enhanced oxidative stresses. Hyaluronic acid (HA), collagen I, and α-smooth muscle actin (α-SMA) were significantly reduced for TME remodulation. Moreover, the antitumor effect in vivo implied that DOX@PssP-Hh NPs could inhibit tumor growth effectively and reduce tumor interstitial fluid pressure (IFP) evidently. In conclusion, DOX@PssP-Hh NPs improved the penetration of drugs and exhibited enhanced antitumor efficacy.
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Affiliation(s)
- Zhihua Wang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yingxin Xu
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Guangyu Wu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai 200120, China
| | - Tiantian Zuo
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jun Zhang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jie Yang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yifan Yang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Tianxu Fang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Qi Shen
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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Fu LN, Xu ZW, Xu RC, Fang T, Wang FM. [The mechanism study of ouabain in inhibiting the growth of hepatocellular carcinoma cells by inhibiting the laser kinase signaling pathway]. Zhonghua Yi Xue Za Zhi 2020; 100:3014-3017. [PMID: 33086454 DOI: 10.3760/cma.j.cn112137-20200605-1778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of Na(+)/K(+)-ATPase inhibitor ouabain on the proliferation and division of liver cancer HepG2 cells, and to explore the anticancer mechanism. Methods: HepG2 cells were exposed with different concentrations of ouabain (0.1, 1, 10 μmol/L) for 24 h, the proliferation ability was appraised using CCK-8, and the HepG2 cells was as a control group. The status of chromosome separation was detected with cell immunofluorescence (ICC) coupled to confocal microscope. The expression levels of AURKA, mTOR, p-mTOR, ERK and p-ERK protein were analyzed using western blot. Results: After treating with 0.1, 1 and 10 μmol/L of ouabain for 24 h, the inhibitory rate of cells were (23.5±4.57)%, (49.80±5.32)%, and (72.10±5.62)%, respectively. Ouabain could significantly inhibit the proliferation of HepG2, and presented in a dose-dependent manner(F=32.8, P<0.05). The ICC results showed that the chromosome separation disorders occurred in HepG2 cells treated with 1 μmol/L for 24 h, and the spindle diameter of HepG2 cells with ouabain treatment was decreased significantly compared with the control group(t=9.58, P<0.05). The results of western blot showed that the expression levels of AURKA, p-mTOR and p-ERK expressions in HepG2 cells treated with 1 μmol/L of ouabain were significantly decreased compared with the control group(F=16.26, 8.32, 33.59, P<0.05). Ouabain inhibited the growth of hepatocellular carcinoma cells in nude mice(F=370.20, P<0.05). Conclusion: Ouabain can induce chromosome division disorder and inhibit the proliferation in liver cancer HepG2 cells by inhibiting AURKA signaling pathway.
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Affiliation(s)
- L N Fu
- Department of Gastroenterology, Tianjin Fourth Central Hospital, Tianjin 300140, China
| | - Z W Xu
- Central Laboratory of Armed Police Logistics College, Tianjin 300309, China
| | - R C Xu
- Central Laboratory of Armed Police Logistics College, Tianjin 300309, China
| | - T Fang
- Department of Gastroenterology, Tianjin Fourth Central Hospital, Tianjin 300140, China
| | - F M Wang
- Department of Hepatology, Tianjin Second People's Hospital, Tianjin 300211, China
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Fang T, Zhang J, Zuo T, Wu G, Xu Y, Yang Y, Yang J, Shen Q. Chemo-Photothermal Combination Cancer Therapy with ROS Scavenging, Extracellular Matrix Depletion, and Tumor Immune Activation by Telmisartan and Diselenide-Paclitaxel Prodrug Loaded Nanoparticles. ACS Appl Mater Interfaces 2020; 12:31292-31308. [PMID: 32551473 DOI: 10.1021/acsami.0c10416] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Extracellular matrix (ECM) accumulating in the tumor microenvironment (TME) is generated by tumor-associated fibroblasts. It can elevate interstitial fluid pressure and form dense barriers in tumor tissues. Consequently, nanocarriers are hindered from permeating into deeper tumor sites. Thus, the programmed drug-releasing nanoparticles, G(TM)PPSP, were developed for TME remodeling and breast cancer therapy. Gelatin nanoparticles were linked with platinum nanoparticles (PtNPs) to obtain G(TM)PPSP with a size of 214.0 ± 5.0 nm. Telmisartan (TM) was loaded in gelatin nanoparticles. Paclitaxel (PTX) was attached to PtNPs via a dual redox responsive diselenide bond. TM release was mediated by MMP-2 because of gelatin degradation in TME, and then intracellular PTX was released because of diselenide linkage fracture triggered by ROS or glutathione. ECM was depleted owing to TGF-β downregulation by TM and direct ablation by the photothermal effect of PtNPs. 4T1 tumor progression was inhibited by PTX chemotherapy, intracellular ROS scavenging of PtNPs, and photothermal therapy (PTT). The tumor spheroid penetration assay proved G(TM)PPSP could permeate into deep tumor regions when MMP-2 existed. In vivo antitumor experiments implied G(TM)PPSP with PTT could inhibit tumor growth effectively and remodel TME via ECM depletion and immunity activation, indicating the potential of G(TM)PPSP-based chemo-photothermal combination therapy for breast cancer treatment.
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Affiliation(s)
- Tianxu Fang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jun Zhang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Tiantian Zuo
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Guangyu Wu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 1630 Dongfang Road, Shanghai, 200120, P. R. China
| | - Yingxin Xu
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Yifan Yang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jie Yang
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Qi Shen
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
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Liu SD, Qi L, Li BX, Li X, Fang T, Song B. [Comparison on efficacy and safety of different bridging anticoagulation therapies in patients undergoing mechanical heart valve replacement surgery]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:130-135. [PMID: 32135613 DOI: 10.3760/cma.j.issn.0253-3758.2020.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the efficacy and safety of different bridging anticoagulant therapies in patients undergoing mechanical heart valve replacement (MHVR) surgery. Methods: Consecutive patients undergoing MHVR surgery from January 2018 to December 2018 in First Hospital of Lanzhou University were prospectively enrolled in this study. Patients were divided into unfractionated heparin (UFH) group and low molecular weight heparin (LMWH) group according to the postoperative bridging anticoagulation methods. Preoperative clinical data and postoperative related time and cost parameters, including drainage time, duration of stay in intensive care unit (ICU), postoperative time (interval from end of operation to discharge) and INR stabilization time (interval from start of bridge anticoagulation to INR value reaching the standard for 2 consecutive days) of all enrolled patients were collected, and all patients were followed up for 4 weeks and thromboembolic or bleeding events were analyzed. Multivariate logistic regression was used to determine the independent prognostic factors of thromboembolic or bleeding events after MHVR receiving various bridging anticoagulant therapies. Results: A total of 217 patients were included in the study, including 120 patients in the UFH group and 97 patients in the LMWH group. Stroke occurred in two patients in the UFH group, while no stroke event occurred in the LMWH group. The incidence of bleeding events was significantly higher (9.28%(9/97) vs. 1.67%(2/120), P=0.02), while the drainage time, duration of stay in ICU, postoperative time, INR stabilization time were all significantly shorter in LMWH group than in UFH group (all P<0.05). Multivariate logistic regression analysis showed that bridging anticoagulation therapies (OR=0.18, 95%CI 0.04-0.86, P=0.03), fibrinogen level (OR=1.99, 95%CI 1.16-3.41, P=0.01) and creatinine level (OR=1.05, 95%CI 1.01-1.08, P=0.04) were independent prognostic factors for bleeding events. Conclusion: LMWH use is associated with increased risk of bleeding events, but can significantly reduce the drainage time, duration of stay in ICU, postoperative time, INR stabilization time in patients post MHVR surgery.
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Affiliation(s)
- S D Liu
- First Clinical Medical College, Lanzhou University, Lanzhou 730000, China
| | - L Qi
- Department of Cardiovascular Surgery, First Hospital of Lanzhou University, Lanzhou 730000, China
| | - B X Li
- Department of Pharmacy, First Hospital of Lanzhou University, Lanzhou 730000, China
| | - X Li
- First Clinical Medical College, Lanzhou University, Lanzhou 730000, China
| | - T Fang
- First Clinical Medical College, Lanzhou University, Lanzhou 730000, China
| | - B Song
- Department of Cardiovascular Surgery, First Hospital of Lanzhou University, Lanzhou 730000, China
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Fang T, Jia G, Zhao H, Chen X, Wu C, Xue B, Cai J, Tian G, Wang J, Liu G. Effects of spermine supplementation on blood biochemical parameters, amino acid profile and ileum expression of amino acid transporters in piglets. J Anim Feed Sci 2019. [DOI: 10.22358/jafs/114433/2019] [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] [Indexed: 11/27/2022]
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Xu Y, Fang T, Yang Y, Sun L, Shen Q. Preparation of Deoxycholate-Modified Docetaxel-Cimetidine Complex Chitosan Nanoparticles to Improve Oral Bioavailability. AAPS PharmSciTech 2019; 20:302. [PMID: 31489504 DOI: 10.1208/s12249-019-1520-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 08/23/2019] [Indexed: 11/30/2022] Open
Abstract
Docetaxel (DTX) was effective in the treatment of neoplasm but could only be administered intravenously with the poor oral bioavailability owing to its undesirable solubility, remarkably metabolic conversion, and other factors. Cimetidine (CMD), a classic CYP3A4 isozyme inhibitor, had exhibited a wide range of inhibition on the metabolism of many drugs. The aim of this study was to construct the novel docetaxel-cimetidine (DTX-CMD) complex and the chitosan-deoxycholate nanoparticles based on it to confirm whether this formulation could show advantages in terms of solubility, dissolution rate, small intestinal absorption, and oral bioavailability in comparison with the pure drug. The solid-state characterization was carried out by powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FT-IR), and simultaneous DSC-TGA (SDT). Dissolution rate and kinetic solubility study were determined by evaluating the amount of DTX in distilled water and phosphate buffer solution (pH = 7.4), respectively. And small intestinal absorption and pharmacokinetics study were conducted in rats. The results of this study demonstrated that we successfully constructed DTX-CMD complex and its chitosan-deoxycholate nanoparticles. Furthermore, the DTX-CMD complex increased the solubility of DTX by 2.3-fold and 2.1-fold in distilled water and phosphate buffer solution, respectively. The ultimate accumulative amount of DTX-CMD complex nanoparticles through rat small intestinal in 2 h was approximately 4.9-fold and the oral bioavailability of the novel nanoparticles was enhanced 2.8-fold, compared with the pure DTX. The superior properties of the complex nanoparticles could both improve oral bioavailability and provide much more feasibility for other formulations of DTX.
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Guirao J, Walsh M, Udintsev V, Iglesias S, Giacomin T, Bertalot L, Shigin P, Kochergin M, Alexandrov E, Zvonkov A, Ivantsivskiy M, Fang T, Hu Q, Rodríguez E, Ordieres J, Juarez R, Blanchard A. Standardized integration of ITER diagnostics Equatorial Port Plugs. Fusion Engineering and Design 2019. [DOI: 10.1016/j.fusengdes.2019.02.126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lyu M, Zhou J, Fang T, Fu T, Cheng Y. Which types of sample is better for Xpert MTB/RIF to diagnose adult and pediatrics pulmonary tuberculosis: a systematic review and meta-analysis. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.04.015] [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: 10/26/2022]
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Lu D, Liu X, Feng S, Dong X, Shi X, Ji X, Fang T, Wang Z, Hong Z, Ye Y, Ren P, Diao D, Wu H, Xiong G, Wang H, Li M, Cai K. IDENTIFICATION OF THE RELATIVELY FIXED INTRATHORACIC ANATOMICAL LANDMARKS FOR ESOPHAGEAL SEGMENTATION: A CROSS-SECTIONAL SURVEY FROM SOUTHERN CHINA. Chest 2019. [DOI: 10.1016/j.chest.2019.02.139] [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: 10/27/2022] Open
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Fang T, Lu D, Liu X, Feng S, Dong X, Shi X, Zhai J, Cai K. ESTABLISHMENT AND MEANING OF ESOPHAGEAL SQUAMOUS CELL CARCINOMA CELL LINES OF KNOCKDOWN AND OVEREXPRESSION DEMETHYLASE ALKBH5 GENERATED BY LENTIVIRUS. Chest 2019. [DOI: 10.1016/j.chest.2019.02.042] [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: 10/27/2022] Open
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Zhang J, Zuo T, Liang X, Xu Y, Yang Y, Fang T, Li J, Chen D, Shen Q. Fenton-reaction-stimulative nanoparticles decorated with a reactive-oxygen-species (ROS)-responsive molecular switch for ROS amplification and triple negative breast cancer therapy. J Mater Chem B 2019; 7:7141-7151. [DOI: 10.1039/c9tb01702j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
P@P/H NPs were rapidly disintegrated in response to ROS, and this further enhanced ROS level in tumor cells via the Fenton reaction.
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Affiliation(s)
- Jun Zhang
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Tiantian Zuo
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Xiao Liang
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Yingxin Xu
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Yifan Yang
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Tianxu Fang
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Jing Li
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Daijie Chen
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
| | - Qi Shen
- School of Pharmacy
- Shanghai Jiao Tong University
- Shanghai 200240
- China
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Fang T, Huang K, Tao FB. [Empirical validity study of rating scale on job competency for preventive medicine undergraduate]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:1305-1308. [PMID: 30522238 DOI: 10.3760/cma.j.issn.0253-9624.2018.12.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- T Fang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei 230032, China
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Huang K, Fang T, Tao FB. [Development of rating scale on job competency for preventive medicine graduate]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:958-961. [PMID: 30196646 DOI: 10.3760/cma.j.issn.0253-9624.2018.09.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- K Huang
- School of Public Health, Anhui Medical University; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei 230032, China
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Jeon HJ, Fang T, Lee JG, Jang JY, Kim K, Choi S, Yan JJ, Ryu JH, Koo TY, Ahn C, Yang J. VDJ Gene Usage of B Cell Receptors in Peripheral Blood of ABO-incompatible Kidney Transplantation Patients. Transplant Proc 2018; 50:1056-1062. [PMID: 29731065 DOI: 10.1016/j.transproceed.2018.01.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 01/22/2018] [Indexed: 12/22/2022]
Abstract
INTRODUCTION B cell subtypes and immunoglobulin variable (V), diversity (D), joining (J) gene segment usage of B cell receptors in ABO-incompatible (ABOi) kidney transplantation (KT) in comparison to ABO-compatible KT have not been studied. The aims of this study were to analyze the VDJ gene segment usages of B cell receptors in peripheral blood of ABOi KT recipients. METHODS Eighteen ABOi KT patients with accommodation (ABOiA), 10 ABO-compatible stable KT patients (ABOcS), and 10 ABOi KT patients with biopsy-proven acute antibody-mediated rejection (ABOiR) at day 10 after transplantation were selected. Complete transcriptomes of their peripheral blood samples were sequenced and analyzed through RNA sequencing. RESULTS By family, immunoglobulin heavy chain variable 3 (IGHV3), immunoglobulin light kappa chain variable 1 (IGKV1), immunoglobulin light lambda chain variable 2 (IGLV2), and immunoglobulin light lambda chain joining 3 (IGLJ3) gene segments were most frequently used in all groups, and their usage was not statistically different among the three groups except for IGHV3 and IGKV1. IGKV1 was more frequently used in the ABOiA group than in the ABOcS group. According to individual gene segments, IGHV3-7, IGHV3-15, IGHV4-59, IGKV3-11, IGLV1-44, IGLV2-14, IGLV4-69, and IGLV7-46 were more frequently used in the ABOcS group than other groups, and IGKV3-7 was more frequently used in the ABOiR group than other groups. IGLV5-52 and IGLV7-43 were more frequently used in the ABOiA group than in ABOcS group. CONCLUSIONS Our findings suggest that RNA sequencing transcriptomic analyses of peripheral blood can provide information on the VDJ gene usage of B cell receptors and the mechanisms of accommodation and immune reaction in ABOi KT.
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Affiliation(s)
- H J Jeon
- Department of Internal Medicine, Hallym University College of Medicine, Seoul, Republic of Korea
| | - T Fang
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J-G Lee
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J Y Jang
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - K Kim
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - S Choi
- Division of Clinical Bioinformatics, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - J-J Yan
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J H Ryu
- Transplantation Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - T Y Koo
- Transplantation Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - C Ahn
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea; Transplantation Center, Seoul National University Hospital, Seoul, Republic of Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J Yang
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea; Transplantation Center, Seoul National University Hospital, Seoul, Republic of Korea; Department of Surgery, Seoul National University Hospital, Seoul, Republic of Korea.
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Xie ZH, Fang T, Xu JS, Fang F, Zheng LL, Li H, Chen CH, Wang XF, Deng J. [Effect of different parts of skull thickness on stereotactic electroencephalogram in children]. Zhonghua Yi Xue Za Zhi 2018; 98:2238-2241. [PMID: 30078277 DOI: 10.3760/cma.j.issn.0376-2491.2018.28.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the thickness of cranial bone in different parts of children skull during stereotactic electroencephalogram (SEEG) and its effect on electrode fixation. Methods: From October 2016 to March 2017, 13 children with SEEG by robot of surgery assistant (ROSA) were selected. The basic case information and electrode design scheme were collected. The skull thickness of each electrode channel was measured on post-operation CT, and the loosening of the fixed screws were recorded. The thickness of skull in frontal bone, temporal bone, parietal bone and occipital bone was statistically processed by SPSS statistical software. Results: There were total 113 electrodes in 13 children with epilepsy. There were 45 electrodes at frontal bone, of which the thickness was (5.7±2.8)mm. There were 34 electrodes at temporal bone, of which the thickness was (3.5±1.3)mm.There were 16 electrodes at parietal bone, of which the thickness was (6.0±2.5)mm.There were 18 electrodes at occipital bone, of which the thickness was (6.9±0.5)mm. Statistics showed that there was significant difference between differnt bone (F=15.340, P<0.01). There were 4 electrodes loosening, 1 at frontal bone and 3 at temporal bone, when the screws were removed. There was no adverse event related to the implantation of electrodes. Conclusions: The children's skull thickness is thinner than adults. The screw loosening is exist in some cases, but it has no effect on SEEG recording. No SEEG related adverse events are found in this group. Therefore, ROSA guided SEEG is safe and reliable in children with epilepsy.
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Affiliation(s)
- Z H Xie
- Department of Functional Neurosurgery, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
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Brinkhaus B, Falkenberg T, Haramati A, Willich SN, Briggs JP, Willcox M, Linde K, Theorell T, Wong LM, Dusek J, Wu D, Eisenberg D, Haramati A, Berger B, Kemper K, Stock-Schröer B, Sützl-Klein H, Ferreri R, Kaplan G, Matthes H, Rotter G, Schiff E, Arnon Z, Hahn E, Luberto CM, Martin D, Schwarz S, Tauschel D, Flower A, Gramminger H, Gupta HH, Gupta SN, Kerckhoff A, Kessler CS, Michalsen A, Kessler CS, Kim ES, Jang EH, Kim R, Jan SB, Mittwede M, Mohme W, Ben-Arye E, Bonucci M, Saad B, Breitkreuz T, Rossi E, Kebudi R, Daher M, Razaq S, Gafer N, Nimri O, Hablas M, Kienle GS, Samuels N, Silbermann M, Bandelin L, Lang AL, Wartner E, Holtermann C, Binstock M, Riebau R, Mujkanovic E, Cramer H, Lauche R, Michalsen A, Ward L, Cramer H, Irnich D, Stör W, Burnstock G, Schaible HG, Ots T, Langhorst J, Lauche R, Sundberg T, Falkenberg T, Amarell C, Amarell C, Anheyer M, Eckert M, Eckert M, Ogal M, Eckert M, Amarell C, Schönauer A, Reisenberger B, Brand B, Anheyer D, Dobos G, Kroez M, Martin D, Matthes H, Ammendola A, Mao JJ, Witt C, Yang Y, Dobos G, Oritz M, Horneber M, Voiß P, Reisenberger B, von Rosenstiel A, Eckert M, Ogal M, Amarell C, Anheyer M, Schad F, Schläppi M, Kröz M, Büssing A, Bar-Sela G, Matthes H, Schiff E, Ben-Arye E, Arnon Z, Avshalomov D, Attias S, Schönauer A, Haramati A, Witt C, Brinkhaus B, Cotton S, Jong M, Jong M, Scheffer C, Haramati A, Tauschel D, Edelhäuser F, AlBedah A, Lee MS, Khalil M, Ogawa K, Motoo Y, Arimitsu J, Ogawa M, Shimizu G, Stange R, Kraft K, Kuchta K, Watanabe K, Bonin D, Büssing A, Gruber H, Koch S, Gruber H, Pohlmann U, Caldwell C, Krantz B, Kortum R, Martin L, Wieland LS, Kligler B, Gould-Fogerite S, Zhang Y, Wieland LS, Riva JJ, Lumpkin M, Ratner E, Ping L, Jian P, Hamme GM, Mao X, Chouping H, Schröder S, Hummelsberger J, Wullinger M, Brodzky M, Zalpour C, Langley J, Weber W, Mudd LM, Wayne P, Witt C, Weidenhammer W, Fønnebø V, Boon H, Steel A, Bugarcic A, Rangitakatu M, Steel A, Adams J, Sibbritt D, Wardle J, Leach M, Schloss J, Dieze H, Boon H, Ijaz N, Willcox M, Heinrich M, Lewith G, Flower A, Graz B, Adam D, Grabenhenrich L, Ortiz M, Binting S, Reinhold T, Brinkhaus B, Andermo S, Sundberg T, Falkenberg T, Nordberg JH, Arman M, Bhasin M, Fan X, Libermann T, Fricchione G, Denninger J, Benson H, Berger B, Stange R, Michalsen A, Martin DD, Boers I, Vlieger A, Jong M, Brinkhaus B, Teut M, Ullmann A, Ortiz M, Rotter G, Binting S, Lotz F, Roll S, Canella C, Mikolasek M, Rostock M, Beyer J, Guckenberger M, Jenewein J, Linka E, Six C, Stoll S, Stupp R, Witt CM, Chuang E, Kligler B, McKee MD, Cramer H, Lauche R, Klose P, Lange S, Langhorst J, Dobos G, Chung VCH, Wong HLC, Wu XY, Wen GYG, Ho RST, Ching JYL, Wu JCY, Coakley A, Flanagan J, Annese C, Empoliti J, Gao Z, Liu X, Yu S, Yan X, Liang F, Hohmann CD, Steckhan N, Ostermann T, Paetow A, Hoff E, Michalsen A, Hu XY, Wu RH, Logue M, Blonde C, Lai LY, Stuart B, Flower A, Fei YT, Moore M, Liu JP, Lewith G, Hu XY, Wu RH, Logue M, Blonde C, Lai LY, Stuart B, Flower A, Fei YT, Moore M, Liu JP, Lewith G, Jeitler M, Zillgen H, Högl M, Steckhan N, Stöckigt B, Seifert G, Michalsen A, Kessler C, Khadivzadeh T, Bashtian MH, Aval SB, Esmaily H, Kim J, Kim KH, Klocke C, Joos S, Koshak A, Wie L, Koshak E, Wali S, Alamoudi O, Demerdash A, Qutub M, Pushparaj P, Heinrich M, Kruse S, Fischer I, Tremel N, Rosenecker J, Leung B, Takeda W, Liang N, Feng X, Liu JP, Cao HJ, Luberto CM, Shinday N, Philpotts L, Park E, Fricchione GL, Yeh G, Munk N, Zakeresfahani A, Foote TR, Ralston R, Boulanger K, Özbe D, Gräßel E, Luttenberger K, Pendergrass A, Pach D, Bellmann-Strobl J, Chang Y, Pasura L, Liu B, Jäger SF, Loerch R, Jin L, Brinkhaus B, Ortiz M, Reinhold T, Roll S, Binting S, Icke K, Shi X, Paul F, Witt CM, Rütz M, Lynen A, Schömitz M, Vahle M, Salomon N, Lang A, Lahat A, Kopylov U, Ben-Horin S, Har-Noi O, Avidan B, Elyakim R, Gamus D, NG S, Chang J, Wu J, Kaimiklotis J, Schumann D, Buttó L, Langhorst J, Dobos G, Haller D, Cramer H, Smith C, de Lacey S, Chapman M, Ratcliffe J, Johnson N, Lyttleton J, Boothroyd C, Fahey P, Tjaden B, van Vliet M, van Wietmarschen H, Jong M, Tröger W, Vuolanto P, Aarva P, Sorsa M, Helin K, Wenzel C, Zoderer I, Pammer P, Simon P, Tucek G, Wode K, Henriksson R, Sharp L, Stoltenberg A, Nordberg JH, Xiao-ying Y, Wang LQ, Li JG, Liang N, Wang Y, Liu JP, Balneaves L, Capler R, Bocci C, Guffi M, Paolini M, Meaglia I, Porcu P, Ivaldi GB, Dragan S, Bucuras P, Pah AM, Badalica-Petrescu M, Buleu F, Hogea-Stoichescu G, Christodorescu R, Kao L, Cho Y, Klafke N, Mahler C, von Hagens C, Uhlmann L, Bentner M, Schneeweiss A, Mueller A, Szecsenyi J, Joos S, Neri I, Ortiz M, Schnabel K, Teut M, Rotter G, Binting S, Cree M, Lotz F, Suhr R, Brinkhaus B, Rossi E, Baccetti S, Firenzuoli F, Monechi MV, Di Stefano M, Amunni G, Wong W, Chen B, Wu J, Amri H, Haramati A, Kotlyanskaya L, Anderson B, Evans R, Kligler B, Marantz P, Bradley R, Booth-LaForce C, Zwickey H, Kligler B, Brooks A, Kreitzer MJ, Lebensohn P, Goldblatt E, Esmel-Esmel N, Jiménez-Herrera M, Ijaz N, Boon H, Jocham A, Stock-Schröer B, Berberat PO, Schneider A, Linde K, Masetti M, Murakozy H, Van Vliet M, Jong M, Jong M, Agdal R, Atarzadeh F, Jaladat AM, Hoseini L, Amini F, Bai C, Liu T, Zheng Z, Wan Y, Xu J, Wang X, Yu H, Gu X, Daneshfard B, Nimrouzi M, Tafazoli V, Alorizi SME, Saghebi SA, Fattahi MR, Salehi A, Rezaeizadeh H, Zarshenas MM, Nimrouzi M, Fox K, Hughes J, Kostanjsek N, Espinosa S, Lewith G, Fisher P, Latif A, Lefeber D, Paske W, Öztürk AÖ, Öztürk G, Boers I, Tissing W, Naafs M, Busch M, Jong M, Daneshfard B, Sanaye MR, Dräger K, Fisher P, Kreitzer MJ, Evans R, Leininger B, Shafto K, Breen J, Sanaye MR, Daneshfard B, Simões-Wüst AP, Moltó-Puigmartí C, van Dongen M, Dagnelie P, Thijs C, White S, Wiesener S, Salamonsen A, Stub T, Fønnebø V, Abanades S, Blanco M, Masllorens L, Sala R, Al-Ahnoumy S, Han D, He L, Kim HY, In Choi D, Alræk T, Stub T, Kristoffersen A, von Sceidt C, Michalsen A, Bruset S, Musial F, Anheyer D, Cramer H, Lauche R, Saha FJ, Dobos G, Anheyer D, Haller H, Lauche R, Dobos G, Cramer H, Azizi H, Khadem N, Hassanzadeh M, Estiri N, Azizi H, Tavassoli F, Lotfalizadeh M, Zabihi R, Esmaily H, Azizi H, Shabestari MM, Paeizi R, Azari MA, Bahrami-Taghanaki H, Zabihi R, Azizi H, Esmaily H, Baars E, De Bruin A, Ponstein A, Baccetti S, Di Stefano M, Rossi E, Firenzuoli F, Segantini S, Monechi MV, Voller F, Barth J, Kern A, Lüthi S, Witt C, Barth J, Zieger A, Otto F, Witt C, Beccia A, Dunlap C, Courneene B, Bedregal P, Passi A, Rodríguez A, Chang M, Gutiérrez S, Beissner F, Beissner F, Preibisch C, Schweizer-Arau A, Popovici R, Meissner K, Beljanski S, Belland L, Rivera-Reyes L, Hwang U, Berger B, Sethe D, Hilgard D, Heusser P, Bishop F, Al-Abbadey M, Bradbury K, Carnes D, Dimitrov B, Fawkes C, Foster J, MacPherson H, Roberts L, Yardley L, Lewith G, Bishop F, Al-Abbadey M, Bradbury K, Carnes D, Dimitrov B, Fawkes C, Foster J, MacPherson H, Roberts L, Yardley L, Lewith G, Bishop F, Holmes M, Lewith G, Yardley L, Little P, Cooper C, Bogani P, Maggini V, Gallo E, Miceli E, Biffi S, Mengoni A, Fani R, Firenzuoli F, Brands-Guendling N, Guendling PW, Bronfort G, Evans R, Haas M, Leininger B, Schulz C, Bu X, Wang J, Fang T, Shen Z, He Y, Zhang X, Zhang Z, Wang D, Meng F, Büssing A, Baumann K, Frick E, Jacobs C, Büssing A, Grünther RA, Lötzke D, Büssing A, Jung S, Lötzke D, Recchia DR, Robens S, Ostermann T, Berger B, Stankewitz J, Kröz M, Jeitler M, Kessler C, Michalsen A, Cheon C, Jang BH, Ko SG, Huang CW, Sasaki Y, Ko Y, Cheshire A, Ridge D, Hughes J, Peters D, Panagioti M, Simon C, Lewith G, Cho HJ, Han D, Choi SJ, Jung YS, Im HB, Cooley K, Tummon-Simmons L, Cotton S, Luberto CM, Wasson R, Kraemer K, Sears R, Hueber C, Derk G, Lill JR, An R, Steinberg L, Rodriguez LD, la Fuente FGD, De la Vega M, Vargas-Román K, Fernández-Ruiz J, Cantarero-Villanueva I, Rodriguez LD, García-De la Fuente F, Jiménez-Guerrero F, Vargas-Román K, Fernández-Ruiz J, Galiano-Castillo N, Diaz-Saez G, Torres-Jimenez JI, Garcia-Gomez O, Hortal-Muñoz L, Diaz-Diez C, Dicen D, Diezel H, Adams J, Steel A, Wardle J, Diezel H, Steel A, Frawley J, Wardle J, Broom A, Adams J, Dong F, Yu H, Liu T, Ma X, Yan L, Wan Y, Zheng Z, Gu X, Dong F, Yu H, Wu L, Liu T, Ma X, Ma J, Yan L, Wan Y, Zheng Z, Zhen J, Gu X, Dubois J, Rodondi PY, Edelhäuser F, Schwartze S, Trapp B, Cysarz D. World Congress Integrative Medicine & Health 2017: Part one. Altern Ther Health Med 2017. [PMCID: PMC5498855 DOI: 10.1186/s12906-017-1782-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Shen X, Fang T, Zhang T, Guo M. 0515 Effects of ultrasound treatment on physicochemical properties of whey protein soluble aggregates. J Anim Sci 2016. [DOI: 10.2527/jam2016-0515] [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: 11/13/2022] Open
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Fang T, Zhou D, Lu L, Tong X, Wu J, Yi L. LXW7 ameliorates focal cerebral ischemia injury and attenuates inflammatory responses in activated microglia in rats. ACTA ACUST UNITED AC 2016; 49:e5287. [PMID: 27533766 PMCID: PMC4988477 DOI: 10.1590/1414-431x20165287] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 06/15/2016] [Indexed: 02/06/2023]
Abstract
Inflammation plays a pivotal role in ischemic stroke, when activated microglia release excessive pro-inflammatory mediators. The inhibition of integrin αvβ3 improves outcomes in rat focal cerebral ischemia models. However, the mechanisms by which microglia are neuroprotective remain unclear. This study evaluated whether post-ischemic treatment with another integrin αvβ3 inhibitor, the cyclic arginine-glycine-aspartic acid (RGD) peptide-cGRGDdvc (LXW7), alleviates cerebral ischemic injury. The anti-inflammatory effect of LXW7 in activated microglia within rat focal cerebral ischemia models was examined. A total of 108 Sprague-Dawley rats (250–280 g) were subjected to middle cerebral artery occlusion (MCAO). After 2 h, the rats were given an intravenous injection of LXW7 (100 μg/kg) or phosphate-buffered saline (PBS). Neurological scores, infarct volumes, brain water content (BWC) and histology alterations were determined. The expressions of pro-inflammatory cytokines [tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β)], and Iba1-positive activated microglia, within peri-ischemic brain tissue, were assessed with ELISA, western blot and immunofluorescence staining. Infarct volumes and BWC were significantly lower in LXW7-treated rats compared to those in the MCAO + PBS (control) group. The LXW7 treatment lowered the expression of pro-inflammatory cytokines. There was a reduction of Iba1-positive activated microglia, and the TNF-α and IL-1β expressions were attenuated. However, there was no difference in the Zea Longa scores between the ischemia and LXW7 groups. The results suggest that LXW7 protected against focal cerebral ischemia and attenuated inflammation in activated microglia. LXW7 may be neuroprotective during acute MCAO-induced brain damage and microglia-related neurodegenerative diseases.
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Affiliation(s)
- T Fang
- Department of Neurology, Shenzhen Hospital, Peking University, Shenzhen, China
| | - D Zhou
- Department of Neurology, Shenzhen Hospital, Peking University, Shenzhen, China
| | - L Lu
- Department of Neurology, Shenzhen Hospital, Peking University, Shenzhen, China
| | - X Tong
- Department of Neurology, Shenzhen Hospital, Peking University, Shenzhen, China
| | - J Wu
- Department of Neurology, Shenzhen Hospital, Peking University, Shenzhen, China
| | - L Yi
- Department of Neurology, Shenzhen Hospital, Peking University, Shenzhen, China
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Lu LQ, Fang T, Zhou D, Tong XX, Wu J, Yi L. [Efficiency of integrin αvβ3 inhibitor Cilengitide in acute cerebral ischemia in rats]. Zhonghua Yi Xue Za Zhi 2016; 96:559-64. [PMID: 26902199 DOI: 10.3760/cma.j.issn.0376-2491.2016.07.015] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore the effect of the integrin αvβ3 inhibitor Cilengitide on the blood brain barrier (BBB) permeability, brain edema, neuronal cell apoptosis and the relation with the vascular endothelial growth factor (VEGF)expression in acute cerebral ischemia rats. METHODS A rat focal cerebral ischemia/reperfusion model was established by middle cerebral artery occlusion. Rats with middle cerebral artery occlusion, in accordance with the random number table, were divided into four groups: (1) the rats in Cilengitide group A (n=30) were treated with Cilengitide at a dose of 100 μg/kg; (2) the rats in Cilengitide group B (n=28) were treated with Cilengitide at a dose of 200 μg/kg; (3) the rats in sham group (n=31), without inserting thread into middle cerebral artery, were treated with normal saline; (4) the rats in control group (n=27) were treated with normal saline.All rats were treated with Cilengitide or saline 1 hour after infarction, given reperfusion 2 hours after infarction and were sacrificed 22 hours after reperfusion.The brain-water content was measured by dry/wet weight method. The permeability of BBB was measured by quantifying Evans Blue. The infarction volume was measured by 2, 3, 5-tripheyl tetrazolium Chloride (TTC) staining. Expression level of VEGF, P-Flk, Cleaved-Caspase-3 was measured by immunohistochemistry and Western blot, respectively.The neuronal cell apoptosis was evaluated by terminal deoxynucleotidyl transferased UTP nick end labeling (TUNEL). RESULTS Compared with Control group, treatment groups with cilengitide at the dose of 100 μg/kg and 200 μg/kg reduced brain-water content [(80.8±1.1)% vs (84.8±1.4)%, (81.0±1.4)% vs (84.8±1.4)%, P<0.05], reduced exudation of Evans blue[(9.2±1.1) μg/g vs (12.2±0.8) μg/g, (8.6±0.6) μg/g vs (12.2±0.8) g/g, P<0.05], reduced infarction volume[(31.9±4.9) mm(3) vs(43.0±2.2) mm(3), (29.2±3.5) mm(3) vs(43.0±2.2) mm(3), P<0.05] , reduced neuronal cell apoptosis [(36±4)vs(69±6)、(35±3)vs (69±6), P<0.05]. Compared with sham group, Cilengitide group A and Cilengitide group B had lower brain-water content, permeability of BBB, infarction volume, expression level of VEGF, P-Flk, Cleaved-Caspase-3 and neuronal cell apoptosis (P<0.05). When Cilengitide group A was compared with Cilengitide group B, there were no significant differences in brain-water content, permeability of BBB, infarction volume, expression level of VEGF, P-Flk, Cleaved-Caspase-3 and neuronal cell apoptosis (P>0.05). CONCLUSION The integrin αvβ3 inhibitor Cilengitide improves outcomes in the MCAO model by preserving the blood-brain barrier, attenuating brain edema and inhibiting neuronal cell apoptosis, which may occur in a VEGF-and VEGF-receptor-dependent manner, with the same efficacy between Cilengitide 100 μg/kg and 200 μg/kg after 23 hours treatment.
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Affiliation(s)
- L Q Lu
- Department of Neurology, Peking University Shenzhen Hospital, Shenzhen 518036, China
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Fang T, Yu LP, Zhang WC, Bao SP. Effects of humic acid and ionic strength on TiO₂ nanoparticles sublethal toxicity to zebrafish. Ecotoxicology 2015; 24:2054-2066. [PMID: 26410372 DOI: 10.1007/s10646-015-1541-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/16/2015] [Indexed: 06/05/2023]
Abstract
The stability and bioavailability of titanium dioxide nanoparticles (TiO2 NPs) suspension could be modified by the physicochemical properties of solution. In the present study, the effect of humic acid (HA) and ionic strength (by adding NaCl) on aggregation and sedimentation of TiO2 NPs suspension were investigated. Accordingly, the sublethal toxicity of TiO2 NPs suspensions with different HA and NaCl concentrations toward zebrafish (Danio rerio) was evaluated by monitoring the changes of superoxide dismutase, catalase, malonaldehyde and glutathione in gill, liver and intestine. The results showed that the aggregations formation and hydrodynamic diameter of TiO2 NPs in suspensions are not essential characteristics to decide toxicity. The varied oxidative stress responses detected in gill, liver and intestine derived from different toxicity mechanisms of TiO2 NPs. Nevertheless, the oxidative stress could be suppressed by the adding of HA and/or the increase of ionic strength, which can decrease the bioavailability of TiO2 NPs in water. The study suggests that the environmental factors, such as HA and ionic strength, are important for the fate (aggregation and sedimentation) and toxicity of nanomaterials in aquatic environment.
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Affiliation(s)
- T Fang
- Institute of Hydrobiology, Chinese Academy of Sciences, No. 7 Donghu South Road, Wuchang District, Wuhan, Hubei, China.
| | - L P Yu
- Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China
- Graduate University of Chinese Academy of Sciences, Beijing, China
| | - W C Zhang
- Institute of Hydrobiology, Chinese Academy of Sciences, No. 7 Donghu South Road, Wuchang District, Wuhan, Hubei, China
| | - S P Bao
- Institute of Hydrobiology, Chinese Academy of Sciences, No. 7 Donghu South Road, Wuchang District, Wuhan, Hubei, China
- Graduate University of Chinese Academy of Sciences, Beijing, China
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Low L, Fang T. Management of Acute Medical Conditions at a Tertiary Psychiatric Hospital- Sentiments From a Survey of Medical Officers. Eur Psychiatry 2015. [DOI: 10.1016/s0924-9338(15)31458-9] [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: 11/25/2022] Open
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Tsang L, Pahk M, Fang T, Hansen M, Bucci C. Validation of a Diuretic Sliding Scale for Patients Discharged With Heart Failure. Can J Cardiol 2013. [DOI: 10.1016/j.cjca.2013.07.317] [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: 11/15/2022] Open
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Nazzaro A, Salerno A, Di Iorio L, Landino G, Marino S, Pastore E, Fabregues F, Iraola A, Casals G, Creus M, Peralta S, Penarrubia J, Manau D, Civico S, Balasch J, Lindgren I, Giwercman YL, Celik E, Turkcuoglu I, Ata B, Karaer A, Kirici P, Berker B, Park J, Kim J, Rhee J, Krishnan M, Rustamov O, Russel R, Fitzgerald C, Roberts S, Hapuarachi S, Tan BK, Mathur RS, van de Vijver A, Blockeel C, Camus M, Polyzos N, Van Landuyt L, Tournaye H, Turhan NO, Hizli D, Kamalak Z, Kosus A, Kosus N, Kafali H, Lukaszuk A, Kunicki M, Liss J, Bednarowska A, Jakiel G, Lukaszuk K, Lukaszuk M, Olszak-Sokolowska B, Lukaszuk K, Kunicki M, Liss J, Jakiel G, Bednarowska A, Wasniewski T, Neuberg M, Lukaszuk M, Cavalcanti V, Peluso C, Lechado BL, Cordts EB, Christofolini DM, Barbosa CP, Bianco B, Venetis CA, Kolibianakis EM, Bosdou J, Tarlatzis BC, Onal M, Gungor DN, Acet M, Kahraman S, Kuijper E, Twisk J, Caanen M, Korsen T, Hompes P, Kushnir M, Rockwood A, Meikle W, Lambalk CB, Hizli D, Kamalak Z, Kosus A, Kosus N, Turhan NO, Kafali H, Yan X, Dai X, Wang J, Zhao N, Cui Y, Liu J, Yarde F, Maas AHEM, Franx A, Eijkemans MJC, Drost JT, van Rijn BB, van Eyck J, van der Schouw YT, Broekmans FJM, Martyn F, Anglim B, Wingfield M, Fang T, Yan GJ, Sun HX, Hu YL, Chrudimska J, Krenkova P, Macek M, Macek M, Teixeira da Silva J, Cunha M, Silva J, Viana P, Goncalves A, Barros N, Oliveira C, Sousa M, Barros A, Nelson SM, Lloyd SM, McConnachie A, Khader A, Fleming R, Lawlor DA, Thuesen L, Andersen AN, Loft A, Smitz J, Abdel-Rahman M, Ismail S, Silk J, Abdellah M, Abdellah AH, Ruiz F, Cruz M, Piro M, Collado D, Garcia-Velasco JA, Requena A, Kollmann Z, Bersinger NA, McKinnon B, Schneider S, Mueller MD, von Wolff M, Vaucher A, Kollmann Z, Bersinger NA, Weiss B, Stute P, Marti U, von Wolff M, Chai J, Yeung WYT, Lee CYV, Li WHR, Ho PC, Ng HYE, Kim SM, Kim SH, Jee BC, Ku S, Suh CS, Choi YM, Kim JG, Moon SY, Lee JH, Kim SG, Kim YY, Kim HJ, Lee KH, Park IH, Sun HG, Hwang YI, Sung NY, Choi MH, Cha SH, Park CW, Kim JY, Yang KM, Song IO, Koong MK, Kang IS, Kim HO, Haines C, Wong WY, Kong WS, Cheung LP, Choy TK, Leung PC, Fadini R, Coticchio G, Renzini MM, Guglielmo MC, Brambillasca F, Hourvitz A, Albertini DF, Novara P, Merola M, Dal Canto M, Iza JAA, DePablo JL, Anarte C, Domingo A, Abanto E, Barrenetxea G, Kato R, Kawachiya S, Bodri D, Kondo M, Matsumoto T, Maldonado LGL, Setti AS, Braga DPAF, Iaconelli A, Borges E, Iaconelli C, Setti AS, Braga DPAF, Figueira RCS, Iaconelli A, Borges E, Kitaya K, Taguchi S, Funabiki M, Tada Y, Hayashi T, Nakamura Y, Snajderova M, Zemkova D, Lanska V, Teslik L, Calonge RN, Ortega L, Garcia A, Cortes S, Guijarro A, Peregrin PC, Bellavia M, Pesant MH, Wirthner D, Portman L, de Ziegler D, Wunder D, Chen X, Chen SHL, Liu YD, Tao T, Xu LJ, Tian XL, Ye DSH, He YX, Carby A, Barsoum E, El-Shawarby S, Trew G, Lavery S, Mishieva N, Barkalina N, Korneeva I, Ivanets T, Abubakirov A, Chavoshinejad R, Hartshorne GM, Marei W, Fouladi-nashta AA, Kyrkou G, Trakakis E, Chrelias CH, Alexiou E, Lykeridou K, Mastorakos G, Bersinger N, Kollmann Z, Mueller MD, Vaucher A, von Wolff M, Ferrero H, Gomez R, Garcia-Pascual CM, Simon C, Pellicer A, Turienzo A, Lledo B, Guerrero J, Ortiz JA, Morales R, Ten J, Llacer J, Bernabeu R, De Leo V, Focarelli R, Capaldo A, Stendardi A, Gambera L, Marca AL, Piomboni P, Kim JJ, Choi YM, Kang JH, Hwang KR, Chae SJ, Kim SM, Yoon SH, Ku SY, Kim SH, Kim JG, Moon SY, Iliodromiti S, Kelsey TW, Anderson RA, Nelson SM, Lee HJ, Weghofer A, Kushnir VA, Shohat-Tal A, Lazzaroni E, Lee HJ, Barad DH, Gleicher NN, Shavit T, Shalom-Paz E, Fainaru O, Michaeli M, Kartchovsky E, Ellenbogen A, Gerris J, Vandekerckhove F, Delvigne A, Dhont N, Madoc B, Neyskens J, Buyle M, Vansteenkiste E, De Schepper E, Pil L, Van Keirsbilck N, Verpoest W, Debacquer D, Annemans L, De Sutter P, Von Wolff M, Kollmann Z, Vaucher A, Weiss B, Bersinger NA, Verit FF, Keskin S, Sargin AK, Karahuseyinoglu S, Yucel O, Yalcinkaya S, Comninos AN, Jayasena CN, Nijher GMK, Abbara A, De Silva A, Veldhuis JD, Ratnasabapathy R, Izzi-Engbeaya C, Lim A, Patel DA, Ghatei MA, Bloom SR, Dhillo WS, Colodron M, Guillen JJ, Garcia D, Coll O, Vassena R, Vernaeve V, Pazoki H, Bolouri G, Farokhi F, Azarbayjani MA, Alebic MS, Stojanovic N, Abali R, Yuksel A, Aktas C, Celik C, Guzel S, Erfan G, Sahin O, Zhongying H, Shangwei L, Qianhong M, Wei F, Lei L, Zhun X, Yan W, Vandekerckhove F, De Baerdemaeker A, Gerris J, Tilleman K, Vansteelandt S, De Sutter P, Oliveira JBA, Baruffi RLR, Petersen CG, Mauri AL, Nascimento AM, Vagnini L, Ricci J, Cavagna M, Massaro FC, Pontes A, Franco JG, El-khayat W, Elsadek M, Foroozanfard F, Saberi H, Moravvegi A, Kazemi M, Gidoni YS, Raziel A, Friedler S, Strassburger D, Hadari D, Kasterstein E, Ben-Ami I, Komarovsky D, Maslansky B, Bern O, Ron-El R, Izquierdo MP, Ten J, Guerrero J, Araico F, Llacer J, Bernabeu R, Somova O, Feskov O, Feskova I, Bezpechnaya I, Zhylkova I, Tishchenko O, Oguic SK, Baldani DP, Skrgatic L, Simunic V, Vrcic H, Rogic D, Juras J, Goldstein MS, Garcia De Miguel L, Campo MC, Gurria A, Alonso J, Serrano A, Marban E, Peregrin PC, Hourvitz A, Shalev L, Yung Y, Yerushalmi G, Giovanni C, Dal Canto M, Fadini R, Has J, Maman E, Monterde M, Gomez R, Marzal A, Vega O, Rubio JM, Diaz-Garcia C, Pellicer A, Eapen A, Datta A, Kurinchi-selvan A, Birch H, Lockwood GM, Ornek MC, Ates U, Usta T, Goksedef CP, Bruszczynska A, Glowacka J, Kunicki M, Jakiel G, Wasniewski T, Jaguszewska K, Liss J, Lukaszuk K, Oehninger S, Nelson S, Verweij P, Stegmann B, Ando H, Takayanagi T, Minamoto H, Suzuki N, Maman E, Rubinshtein N, Yung Y, Shalev L, Yerushalmi G, Hourvitz A, Saltek S, Demir B, Dilbaz B, Demirtas C, Kutteh W, Shapiro B, Witjes H, Gordon K, Lauritsen MP, Loft A, Pinborg A, Freiesleben NL, Mikkelsen AL, Bjerge MR, Andersen AN, Chakraborty P, Goswami SK, Chakravarty BN, Mittal M, Bajoria R, Narvekar N, Chatterjee R, Bentzen JG, Johannsen TH, Scheike T, Andersen AN, Friis-Hansen L, Sunkara S, Coomarasamy A, Faris R, Braude P, Khalaf Y, Makedos A, Kolibianakis EM, Venetis CA, Masouridou S, Chatzimeletiou K, Zepiridis L, Mitsoli A, Lainas G, Sfontouris I, Tzamtzoglou A, Kyrou D, Lainas T, Tarlatzis BC, Fermin A, Crisol L, Exposito A, Prieto B, Mendoza R, Matorras R, Louwers Y, Lao O, Kayser M, Palumbo A, Sanabria V, Rouleau JP, Puopolo M, Hernandez MJ, Diaz-Garcia C, Monterde M, Marzal A, Vega O, Rubio JM, Gomez R, Pellicer A, Ozturk S, Sozen B, Yaba-Ucar A, Mutlu D, Demir N, Olsson H, Sandstrom R, Grundemar L, Papaleo E, Corti L, Rabellotti E, Vanni VS, Potenza M, Molgora M, Vigano P, Candiani M, Andersen AN, Fernandez-Sanchez M, Bosch E, Visnova H, Barri P, Garcia-Velasco JA, De Sutter P, Fauser BJCM, Arce JC, Sandstrom R, Olsson H, Grundemar L, Peluso P, Trevisan CM, Cordts EB, Cavalcanti V, Christofolini DM, Fonseca FA, Barbosa CP, Bianco B, Bakas P, Vlahos N, Hassiakos D, Tzanakaki D, Gregoriou O, Liapis A, Creatsas G, Adda-Herzog E, Steffann J, Sebag-Peyrelevade S, Poulain M, Benachi A, Fanchin R, Gordon K, Zhang D, Andersen AN, Aybar F, Temel S, Kahraman S, Hamdine O, Macklon NS, Eijkemans MJC, Laven JS, Cohlen BJ, Verhoeff A, van Dop PA, Bernardus RE, Lambalk CB, Oosterhuis GJE, Holleboom CAG, van den Dool-Maasland GC, Verburg HJ, van der Heijden PFM, Blankhart A, Fauser BCJM, Broekmans FJ, Bhattacharya J, Mitra A, Dutta GB, Kundu A, Bhattacharya M, Kundu S, Pigny P, Dassonneville A, Catteau-Jonard S, Decanter C, Dewailly D, Pouly J, Olivennes F, Massin N, Celle M, Caizergues N, Fleming R, Gaudoin M, Messow M, McConnachie A, Nelson SM, Dewailly D, Vanhove L, Peigne M, Thomas P, Robin G, Catteau-Jonard S. Reproductive endocrinology. Hum Reprod 2013. [DOI: 10.1093/humrep/det221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zhang Q, Wu S, Jiang Y, Fang T, Yan G, Sun H, Hu Y, Courjaud AL, Assou S, Haouzi D, Gala A, Dechaud H, Hamamah S, Tang C, Pan YB, Wu XM, Ruan HF, Wang YJ, Wang JR, Wu S, Zhang Q, Jiang Y, Fang T, Sun H, Yan G, Hu Y, Alhamdan R, Marsters P, Campbell B, Spence S, Anderson RA, Telfer EE, Elfituri A, Marsters P, Campbell BK. Session 58: Basics of reproductive endocrinology. Hum Reprod 2013. [DOI: 10.1093/humrep/det191] [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: 11/12/2022] Open
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Abstract
Liquid-liquid phase segregation in an Fe-Cu melt is investigated by molecular dynamics (MD) simulation based upon a newly developed embedded atom method due to Bonny. The partial pair correlation functions (PPCF) of liquid Fe(50)Cu(50) at a temperature of 1873 K show stronger interaction of homogeneous atom pairs. The coordination number (CN) of Cu-Cu and Fe-Fe in Fe(50)Cu(50) melt is about 11, much higher than that of Fe-Cu. Liquid-liquid phase segregation has also been observed clearly by the atom snapshot method. The calculated enthalpy of mixing is positive in the whole concentration range and the Bhatia-Thornton (BT) structure factor S(CC)(q) increases sharply at lower q, which are all typical features of dense fluid that exhibits a phase segregation tendency. Our present work provides an understanding of atomic-scale phase segregation in liquid Fe-Cu alloy.
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Affiliation(s)
- T Fang
- School of Mechanical and Electrical and Information Engineering, Shandong University at Weihai, Weihai 264209, People's Republic of China
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Karasu Y, Dilbaz B, Demir B, Dilbaz S, Secilmis Kerimoglu O, Ercan CM, Keskin U, Korkmaz C, Duru NK, Ergun A, de Zuniga I, Horton M, Oubina A, Scotti L, Abramovich D, Pascuali N, Tesone M, Parborell F, Bouzas N, Yang XH, Chen SL, Chen X, Ye DS, Zheng HY, Nyboe Andersen A, Lauritsen MP, Thuesen LL, Khodadadi M, Shivabasavaiah S, Mozafari R, Ansari Z, Hamdine O, Broekmans F, Eijkemans MJC, Cohlen BJ, Verhoeff A, van Dop PA, Bernardus RE, Lambalk CB, Oosterhuis GJE, Holleboom C, van den Dool-Maasland GC, Verburg HJ, van der Heijden PFM, Blankhart A, Fauser BCJM, Laven JSE, Macklon NS, Agudo D, Lopez C, Alonso M, Huguet E, Bronet F, Garcia-Velasco JA, Requena A, Gonzalez Comadran M, Checa MA, Duran M, Fabregues F, Carreras R, Ersahin A, Kahraman S, Kavrut M, Gorgen B, Acet M, Dokuzeylul N, Aybar F, Lim SY, Park JC, Bae JG, Kim JI, Rhee JH, Mahran A, Abdelmeged A, El-Adawy A, Eissa M, Darne J, Shaw RW, Amer SA, Dai A, Yan G, He Q, Hu Y, Sun H, Ferrero H, Gomez R, Garcia-Pascual CM, Simon C, Gaytan F, Pellicer A, Garcia Pascual CM, Zimmermann RC, Ferrero H, Simon C, Pellicer A, Gomez R, Madani T, Mohammadi Yeganeh L, Khodabakhshi SH, Akhoond MR, Hasani F, Monzo C, Haouzi D, Assou S, Dechaud H, Hamamah S, Amer S, Mahran M, Eissa M, Darne J, Shaw R, Lan V, Nhu G, Tuong H, Mahmoud Youssef MA, Aboulfoutouh I, Al-inany H, Van Der Veen F, Van Wely M, Zhang Q, Fang T, Wu S, Zhang L, Wang B, Li X, Yan G, Sun H, Hu Y, He Q, Ding L, Day A, Wang B, Yan G, Hu Y, Sun H, Zhang L, Fang T, Zhang Q, Wu S, Yan G, Sun H, Hu Y, Fulford B, Boivin J, Alanbay I, Ercan CM, Sakinci M, Coksuer H, Ozturk M, Tapan S, Chung CK, Chung Y, Seo S, Aksoy S, Yakin K, Caliskan S, Salar Z, Ata B, Urman B, Devroey P, Pellicer A, Nyboe Andersen A, Arce JC, Harrison K, Irving J, Osborn J, Harrison M, Fusi F, Arnoldi M, Cappato M, Galbignani E, Galimberti A, Zanga L, Frigerio L, Taghavi SA, Ashrafi M, Karimian L, Mehdizadeh M, Joghataie M, Aflatoonian R, Xu B, Cui YG, Gao LL, Diao FY, Li M, Liu XQ, Liu JY, Jiang F, Li M, Cui YG, Diao FY, Liu JY, Jee BC, Yi G, Kim JY, Suh CS, Kim SH, Liu S, Cui YG, Liu JY, Cai LB, Liu JJ, Ma X, Geenen E, Bots RSGM, Smeenk JMJ, Chang E, Lee W, Seok H, Kim Y, Han J, Yoon T, Lazaros L, Xita N, Zikopoulos K, Makrydimas G, Kaponis A, Sofikitis N, Stefos T, Hatzi E, Georgiou I, Atilgan R, Kumbak B, Sahin L, Ozkan ZS, Simsek M, Sapmaz E, Karacan M, Alwaeely FA, Cebi Z, Berberoglugil M, Ulug M, Camlibel T, Kavrut M, Kahraman S, Ersahin A, Acet M, Yelke H, Kamalak Z, Carlioglu A, Akdeniz D, Uysal S, Inegol Gumus I, Ozturk Turhan N, Regan S, Yovich J, Stanger J, Almahbobi G, Kara M, Aydin T, Turktekin N, Youssef M, Aboulfoutouh I, Al-Inany H, van der Veen F, van Wely M, Hart R, Doherty D, Frederiksen H, Keelan J, Pennell C, Newnham J, Skakkebaek N, Main K, Salem HT, Ismail AA, Viola M, Siebert TI, Steyn DW, Kruger TF, Robin G, Dewailly D, Thomas P, Leroy M, Lefebvre C, soudan B, Pigny P, Decanter C, ElPrince M, Wang F, Zhu Y, Huang H, Valdez Morales F, Vital Reyes V, Mendoza Rodriguez A, Gamboa Dominguez A, Cerbon M, Aizpurua J, Ramos B, Luehr B, Moragues I, Rogel S, Cil AP, Guler ZB, Kisa U, Albu A, Radian S, Grigorescu F, Albu D, Fica S, Al Boghdady L, Ghanem ME, Hassan M, Helal AS, Ozdogan S, Ozdegirmenci O, Dilbaz S, Demir B, Cinar O, Dilbaz B, Goktolga U, Seeber B, Tsybulyak I, Bottcher B, Grubinger T, Czech T, Wildt L, Wojcik J, Howles CM, Destenaves B, Arriagada P, Tavmergen E, Sahin G, Akdogan A, Levi R, Goker ENT, Thuesen LL, Loft A, Smitz J, Nyboe Andersen A, Ricciardi L, Di Florio C, Busacca M, Gagliano D, Immediata V, Selvaggi L, Romualdi D, Guido M, Bouhanna P, Salama S, Kamoud Z, Torre A, Paillusson B, Fuchs F, Bailly M, Wainer R, Tagliaferri V, Busacca M, Gagliano D, Di Florio C, Tartaglia C, Cirella E, Romualdi D, Guido M, Aflatoonian A, Eftekhar M, Mohammadian F, Yousefnejad F, De Cicco S, Gagliano D, Busacca M, Di Florio C, Immediata V, Campagna G, Romualdi D, Guido M, Depalo R, Lippolis C, Vacca M, Nardelli C, Selvaggi L, Cavallini A, Panic T, Mitulovic G, Franz M, Sator K, Tschugguel W, Pietrowski D, Hildebrandt T, Cupisti S, Giltay EJ, Gooren LJ, Oppelt PG, Hackl J, Reissmann C, Schulze C, Heusinger K, Attig M, Hoffmann I, Beckmann MW, Dittrich R, Mueller A, Sharma S, Singh S, Chakravarty A, Sarkar A, Rajani S, Chakravarty BN, Dilbaz S, Ozturk E, Ozdegirmenci O, Demir B, Isikoglu S, Kul S, Dilbaz B, Cinar O, Goktolga U, Eftekhar M, Aflatoonian A, Mohammadian F, Broekmans F, Hillensjo T, Witjes H, Elbers J, Mannaerts B, Gordon K, Krasnopolskaya K, Galaktionova A, Gorskaya O, Kabanova D, Venturella R, Morelli M, Mocciaro R, Capasso S, Cappiello F, Zullo F, Monterde M, Gomez R, Marzal A, Vega O, Rubio-Rubio JM, Diaz-Garcia C, Pellicer A, Gordon K, Kolibianakis E, Griesinger G, Yding Andersen C, Witjes H, Mannaerts B, Ocal P, Guralp O, Aydogan B, Irez T, Cetin M, Senol H, Erol N, Yding Andersen C, Kolibianakis E, Devroey P, Witjes H, Mannaerts B, Gordon K, Griesinger G, Rombauts L, Van Kuijk J, Mannaerts B, Montagut J, Nogueira D, Porcu G, Chomier M, Giorgetti C, Nicollet B, Degoy J, Lehert P, Alviggi C, De Rosa P, Vallone R, Picarelli S, Coppola M, Conforti A, Strina I, Di Carlo C, De Placido G, Hackl J, Cupisti S, Haeberle L, Schulze C, Hildebrandt T, Oppelt PG, Reissmann C, Heusinger K, Attig M, Hoffmann I, Dittrich R, Beckmann MW, Mueller A, Akdogan A, Demirtas O, Sahin G, Tavmergen E, Goker ENT, Fatemi H, Shapiro BS, Griesinger G, Witjes H, Gordon K, Mannaerts BM, Chimote MN, Mehta BN, Chimote NN, Nath NM, Chimote NM, Karia S, Bonifacio M, Bowman M, McArthur S, Jung J, Cho S, Choi Y, Lee B, Seo S, Lee KH, Kim CH, Kwon SK, Kim SH, Kang BM, Jung KS, Basios G, Trakakis E, Hatziagelaki E, Vaggopoulos V, Tsiavou A, Panagopoulos P, Chrelias C, Kassanos D, Sarhan A, Elsamanoudy A, Harira M, Dogan S, Bozdag G, Esinler I, Polat M, Yarali H. REPRODUCTIVE ENDOCRINOLOGY. Hum Reprod 2012. [DOI: 10.1093/humrep/27.s2.88] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Katz HE, Schilling ML, Washington G, Dirk CW, Holland WR, Fang T, Singer KD. Effects of Molecular Rigidity on Electric Field Induced Alignment and Orientational Stability of Dipolar Chromophore Composites. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-173-543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTThe relationship between the supramolecular conformational structure of assembled chromophores and their susceptibility to electric field poling is of interest for maximizing the bulk alignment achievable in an electro-optic material. We have employed solution phase dielectric constant measurements to investigate possible enhancements in dipolar susceptibility as a function of connectivity and state of aggregation in rationally synthesized chromophore assemblies, including conformationally defined head-to-tail oligomers. On the other hand, conformationally unrestricted, highly dipolar azo dyes behave as relatively isolated molecules even when present in supersaturated solutions and in close proximity on polymer chains.
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van Draanen J, Stacey E, Dent R, Gallo-Hershberg D, Pasetka M, Giotis A, Kan K, van Draanen L, Fang T, Lee V, Walker S, DeAngelis C. Abstract P3-15-05: Muscle and Joint Symptoms in Breast Cancer Patients Receiving Taxane-Based Chemotherapy. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p3-15-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Docetaxel, paclitaxel, and (nab)-paclitaxel are taxanes used in treating breast cancer at various stages. While fairly well tolerated, they can cause distressing side effects. Both the prevalence and severity of muscle and joint symptoms (M&JS) in patients receiving taxane-based chemotherapies are poorly documented. We prospectively investigated the prevalence and severity of M&JS in women receiving taxane chemotherapy for breast cancer.
Methods: A total of 275 taxane-naive patients were enrolled in the study. This analysis presents data for 95 patients. For three consecutive treatmentcycles patients completed a baseline questionnaire as well as a diary, days 1 through 7 and on days 14 and 21 following treatment. Patient interviews were done by telephone days 2 to 3, and days 5 to 7 following treatment. They were then contacted at approximately three month intervals for one year. Data collection and data entry are ongoing; long term follow-up will conclude in August 2010.
Results: The average age of patients was 53 years. Disease status was classified as early for 50%, locally advanced for 35.34 %, and metastatic for 15.51% of patients. Overall 41.4% and 39.6% of patients reported muscle and joint pain, respectively, in their diaries on days 1 to 7. Muscle pain was most commonly reported in the legs, back, and arms and joint pain in the knees, ankles, and hips. The pain was most often described as aching, tiring, nagging, exhausting, and tender. The following scores are derived from a 10 cm visual analog scale. Of those who experienced pain in the seven days after treatment, the mean rating for pain at its worst was 5.15 and 5.02 for muscle and joint pain, respectively. Pain at its least had an average rating of 3.42 and 3.41 for muscle and joint pain, respectively. With respect to interference, patients who experienced pain had a mean score of 5.39, 4.86, 5.5, 4.12, 5.36, and 5.44 for interference with basic activities in daily life, mood, working or housework, relationships, sleeping and enjoyment of life, respectively. One, 3, 6, 9 and 12 months after taxane treatment ended, 27.2% (22/81), 31% (13/42), 45.5% (20/44), 37.2% (16/43), and 26.9% (7/26) reported muscle pain, respectively. Joint pain was reported by 26% (21/81), 38.1% (16/42), 43.2% (19/44), 48.8% (21/43) and 34.6% (9/26) of patients 1, 3, 6, 9 and 12 months following treatment, respectively. Data entry and analysis is ongoing and the final analysis will report on pain in relation to the taxane used, steroid tapering, role of anti-hormonal therapy, and effect of menopause on incidence of M&JS.
Discussion: Our preliminary data analysis indicates incidence rates of M&JS higher than previously reported during taxane treatment, and persistence of symptoms in a large proportion of patients up to a year following therapy completion. High pain scores and considerable interference with many aspects of life were reported. This study confirms the significant burden of M&JS during taxane chemotherapy. Conclusions: M&JS during taxane treatment is a common occurrence, and is significantly debilitating to the women who experience it. More research should be done regarding preventative measures and treatment options.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P3-15-05.
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Affiliation(s)
- J van Draanen
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
| | - E Stacey
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
| | - R Dent
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
| | - D Gallo-Hershberg
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
| | - M Pasetka
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
| | - A Giotis
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
| | - K Kan
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
| | - L van Draanen
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
| | - T Fang
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
| | - V Lee
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
| | - S Walker
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
| | - C. DeAngelis
- Sunnybrook Health Sciences Centre, Toronto, ON, Canada; North York General Hospital, Toronto, ON, Canada
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Huang L, Cheng T, Xu P, Duan J, Fang T, Xia Q. Immunoglobulin superfamily is conserved but evolved rapidly and is active in the silkworm, Bombyx mori. Insect Mol Biol 2009; 18:517-530. [PMID: 19604311 DOI: 10.1111/j.1365-2583.2009.00896.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Immunoglobulin superfamily (IgSF) proteins are known for their abilities to specifically recognize and adhere to cells. In this paper, we predicted the presence of 133 IgSF proteins in the silkworm (Bombyx mori) genome. Comparison with similar proteins in other model organisms (Caenorhabditis elegans, Drosophila melanogaster, Anopheles gambiae, Apis mellifera and Homo sapiens) indicated that IgSF proteins are conserved but have rapidly evolved from worms to human beings. However, these proteins are well conserved amongst insects. Silkworm microarray-based expression data showed tissue expression of 57 IgSF genes and microbe-induced differential expression of 37 genes. Based on the expression data, we can conclude that the silkworm IgSF is active.
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Affiliation(s)
- L Huang
- Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China.
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Whited B, Rossignac J, Slabaugh G, Fang T, Unal G. Pearling: Stroke segmentation with crusted pearl strings. Pattern Recognit Image Anal 2009. [DOI: 10.1134/s1054661809020102] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jassal D, Moffat D, Krahn J, Ahmadie R, Fang T, Eschun G, Sharma S. Cardiac Injury Markers in Non-elite Marathon Runners. Int J Sports Med 2009; 30:75-9. [DOI: 10.1055/s-0028-1104572] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Guang Zheng, Wang B, Fang T, Cheng H, Qi Y, Wang Y, Yan B, Bi Y, Wang Y, Chu S, Wu T, Xu J, Min H, Yan S, Ye C, Jia Z. Laser Digital Cinema Projector. ACTA ACUST UNITED AC 2008. [DOI: 10.1109/jdt.2008.924163] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Wadhwa D, Fallah-Rad N, Grenier D, Krahn M, Fang T, Ahmadie R, Lister D, Arora RC, Barac I, Morris A, Jassal DS. Trastuzumab mediated cardiotoxicity in the setting of adjuvant chemotherapy for breast cancer: A real world population-based study. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.11522] [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: 11/20/2022] Open
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Wang XW, Li J, Guo T, Zhen B, Kong Q, Yi B, Li Z, Song N, Jin M, Xiao W, Zhu X, Gu C, Yin J, Wei W, Yao W, Liu C, Li J, Ou G, Wang M, Fang T, Wang G, Qiu Y, Wu H, Chao F, Li J. Concentration and detection of SARS coronavirus in sewage from Xiao Tang Shan Hospital and the 309th Hospital of the Chinese People's Liberation Army. Water Sci Technol 2005; 52:213-221. [PMID: 16312970 DOI: 10.2166/wst.2005.0266] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
A worldwide outbreak of severe acute respiratory syndrome (SARS) had been reported. Over 8439 SARS cases and 812 SARS-related deaths were reported to the World Health Organization from 32 countries around the world up to 5 July 2003. The mechanism of transmission of SARS-CoV has been limited only to close contacts with patients. Attention was focused on possible transmission by the sewage system because laboratory studies showed that patients excreted coronavirus RNA in their stools in Amoy Gardens in Hong Kong. To explore whether the stool of SARS patients or the sewage containing the stool of patients would transmit SARS-CoV or not, we used a style of electropositive filter media particle to concentrate the SARS-CoV from the sewage of two hospitals receiving SARS patients in Beijing, as well as cell culture, semi-nested RT-PCR and sequencing of genes to detect and identify the viruses from sewage. There was no live SARS-CoV detected in the sewage in these assays. The nucleic acid of SARS-CoV was found in the sewage before disinfection from both hospitals by PCR. After disinfection, SARS-CoV RNA could be detected from some samples from the 309th Hospital of the Chinese People's Liberation Army, but not from Xiao Tang Shan Hospital after disinfection. In this study, we found that the virus can survive for 14 days in sewage at 4 degrees C, 2 days at 20 degrees C, and its RNA can be detected for 8 days though the virus had been inactivated. In conclusion, this study demonstrates that the RNA of SARS-CoV could be detected from the concentrates of sewage of both hospitals receiving SARS patients before disinfection and occasionally after disinfection though there was no live SARS-CoV; thus much attention should be paid to the treatment of stools of patients and the sewage of hospitals receiving SARS patients.
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Affiliation(s)
- X W Wang
- Institute of Hygiene and Environmental Medicine, Academy of Military Medical Sciences, Tianjin, PR China
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