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Wang J, Yi T, Dong Y, Ran R, Cao F, Li Y, Luo Z, Xu Y, Fu Y, Kuang L, Chen G, Qu G, Yin Y, Li J, Xu X, Chen Y, Song Q, Chu Q. P40.06 A Real-World Study: Efficacy and Safety of Anlotinib for Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.443] [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: 10/20/2022]
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52
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Gao TT, Liu XH, Shen Q, Luo Z, Feng P, Miao J, Zheng L, Chen DL, Xiang J. Pharmacokinetics and bioequivalence evaluation of lenalidomide in Chinese patients with multiple myeloma. Chin Med J (Engl) 2021; 135:250-252. [PMID: 34507323 PMCID: PMC8769102 DOI: 10.1097/cm9.0000000000001695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- Tian-Tao Gao
- Clinical Trial Center, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, China Department of Medicinal Natural Products, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610041, China
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Chen N, Wu H, Deng Z, Liao Z, Feng S, Luo Z, Chu Y, Qiu G, Li X, Jin Y, Rong S, Wang F, Gan L, Chen R, Zhao L. [An optimized protocol of meniscus cell extraction for single-cell RNA sequencing]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:1310-1318. [PMID: 34658344 DOI: 10.12122/j.issn.1673-4254.2021.09.04] [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: 11/24/2022]
Abstract
OBJECTIVE To optimize the protocol of meniscus cell extraction to enhance the efficiency of cell suspension preparation and maintain a high cell viability for single-cell RNA sequencing. METHODS We compared the efficiency of the routine cell extraction methods (short-time digestion and long-time digestion) and the optimized protocol for obtaining meniscus cell suspensions by evaluating the cell number obtained and the cell viability. Single-cell RNA sequencing datasets were analyzed to evaluate the stability of the cell suspension prepared using the optimized protocol. The reliability of the optimized protocol was assessed by comparing the single-cell RNA sequencing dataset obtained by the optimized protocol with published single-cell RNA sequencing datasets of the meniscus. RESULTS The optimized protocol harvested a greater number of cells (over 1×105) than the routine protocols. The cell suspension prepared with the optimized protocol showed a cell viability higher than 80%, the highest among the 3 methods. Analysis of single-cell RNA sequencing datasets showed that the ratio of the mitochondrial genes was below 20% in over 80% of the cells. CD34+ cells, MCAM+ cells and COL1A1+ cells were identified in the datasets. Comparison with the publish datasets showed that the optimized protocol was capable of harvesting COL3A1+, COL1A1+, MYLK+, BMP2+, CD93+ and CDK1+ cells. CONCLUSION Single-cell suspension prepared from the meniscus can be stably obtained using the optimized protocol for single-cell RNA sequencing using the 10× Genomics platform.
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Affiliation(s)
- N Chen
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - H Wu
- Zhujiang Hospital, Southern Medical University, Guangzhou 510080, China
| | - Z Deng
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Liao
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S Feng
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Luo
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Y Chu
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - G Qiu
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X Li
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Y Jin
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S Rong
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - F Wang
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L Gan
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - R Chen
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - L Zhao
- Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Zhang D, Deng T, Luo Z, Zhu A, Yang B, Zhong H, Li S, Yang X. [Surface modification of titanium implant with hBMP-2/hIGF-1 for promoting biocompatibility and osteogenesis]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:1277-1282. [PMID: 34549722 DOI: 10.12122/j.issn.1673-4254.2021.08.22] [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: 11/24/2022]
Abstract
OBJECTIVE To prepare the human bone morphogenetic protein-2(hBMP-2)/human insulin-like growth factor-1(hIGF-1)coating titanium(Ti)and assess its performance as a dental implant material. METHODS hBMP-2 and hIGF-1 were coated to the smooth surface of a Ti plate, and its efficacy for promoting bone formation and bone integration was compared with a pristine Ti plate.The surface characteristics of the metal samples were evaluated using scanning electron microscope (SEM) and by contact angle measurement.MG63 cells were seeded on the surface of the Ti plates, and MTT assay and alizarin red staining was used to examine the cell proliferation and formation of calcified nodules, respectively.Alkaline phosphatase (ALP)secretion of the cells was examined with ELISA, and cellular expressions of osteocalcin and osteopontin were detected with Western blotting for assessing osteogenesis. RESULTS SEM examination showed that the surface of Ti with hBMP-2 and hIGF-1 coating presented with a radial pattern resembling snowflakes.The contact angles of non-coated Ti, hBMP-2-coated Ti, hIGF-1-coated, and hBMP-2/-hIGF-1-coated Ti samples were 83.2°, 54°, 56° and 54°, respectively.Compared with the non-coated Ti plate, the surface-modified Ti samples showed a significantly smaller contact angle (P=0.032, 0.029, and 0.028), indicating a good hydrophilicity of the samples.MTT assay showed that MG63 cells grew well on the surface of the coated Ti plates.The hBMP-2/IGF-1 coating significantly induced cellular secretion of ALP(P=0.021, 0.014)and obviously promoted osteogenesis of MG63 cells (P < 0.05).Western blotting results showed that hBMP-2/IGF-1 coating significantly enhanced the expressions of osteocalcin and osteopontin in the seeded cells (P < 0.05). CONCLUSION hBMP-2 and hIGF-1 coating of Ti material can promote osteogenesis of the cells seeded on its surface to improve the performance of such Ti material as dental implants.
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Affiliation(s)
- D Zhang
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - T Deng
- Department of Stomatology, Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen 518107, China
| | - Z Luo
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - A Zhu
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - B Yang
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - H Zhong
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - S Li
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - X Yang
- Department of Implantology, Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
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Yao Y, Zhu Y, Pan C, Wang C, Hu S, Xiao W, Chi X, Fang Y, Yang J, Deng H, Xiao S, Li J, Luo Z, Guo Y. Interfacial sp C-O-Mo Hybridization Originated High-Current Density Hydrogen Evolution. J Am Chem Soc 2021; 143:8720-8730. [PMID: 34100598 DOI: 10.1021/jacs.1c02831] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
High-current density (≥1 A cm-2) is a critical factor for large-scale industrial application of water-splitting electrocatalysts, especially seawater-splitting. However, it still remains a great challenge to reach high-current density due to the lack of active and stable intrinsic catalytic active sites in catalysts. Herein, we report an original three-dimensional self-supporting graphdiyne/molybdenum oxide (GDY/MoO3) material for efficient hydrogen evolution reaction via a rational design of "sp C-O-Mo hybridization" on the interface. The "sp C-O-Mo hybridization" creates new intrinsic catalytic active sites (nonoxygen vacancy sites) and increases the amount of active sites (eight times higher than pure MoO3). The "sp C-O-Mo hybridization" facilitates charge transfer and boosts the dissociation process of H2O molecules, leading to outstanding HER activity with high-current density (>1.2 A cm-2) in alkaline electrolyte and a decent activity and stability in natural seawater. Our results show that high-current density electrocatalysts can be achieved by interfacial chemical bond engineering, three-dimensional structure design, and hydrophilicity optimization.
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Affiliation(s)
- Yuan Yao
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Yuhua Zhu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Chuanqi Pan
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Chenyang Wang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Siyu Hu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Wen Xiao
- Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore
| | - Xiao Chi
- Singapore Synchrotron Light Source National University of Singapore 5 Research Link, 117603, Singapore
| | - Yarong Fang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Ji Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Hongtao Deng
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Shengqiang Xiao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P.R. China
| | - Junbo Li
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, P.R. China
| | - Zhu Luo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Yanbing Guo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
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Shen Z, Song W, Li X, Yang L, Wang C, Hao Z, Luo Z. Enhancing performances of hemp fiber/natural rubber composites via polyhydric hyperbranched polyester. Journal of Polymer Engineering 2021. [DOI: 10.1515/polyeng-2020-0331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
High-performance rubber composites can be obtained by combining the strength of fiber with the high elasticity of rubber. In this article, environmentally friendly natural rubber (NR)/carbon (CB) composites reinforced by maleic anhydride (MAH) grafted hemp fiber (HF) in the presence of polyhydric hyper-branched polyester (PHP) were studied. The grafting of MAH on the surface of HF (HF-MAH) improves the roughness of fibers, the introduced C=C participates in rubber covulcanization with NR matrix at high temperature, thus enhancing the physical locking and chemical crosslinking between HF and NR matrix. The bridge effect was produced between HF-MAH and rubber matrix by PHP, and the interfacial adhesion was further enhanced. As a result, the tensile strength, tear strength, and elongation at break were improved by approximately 14.5, 26.2, and 10.8%, respectively. The 100 and 300% constant elongation stress was increased by 134 and 113%, and the cutting resistance was also improved obviously.
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Affiliation(s)
- Zong Shen
- College of Materials and Metallurgy, Guizhou University , Guiyang 550025 , China
| | - Weihua Song
- College of Materials and Metallurgy, Guizhou University , Guiyang 550025 , China
| | - Xiaolong Li
- College of Materials and Metallurgy, Guizhou University , Guiyang 550025 , China
| | - Le Yang
- College of Materials and Metallurgy, Guizhou University , Guiyang 550025 , China
| | - Chaoyu Wang
- College of Materials and Metallurgy, Guizhou University , Guiyang 550025 , China
| | - Zhi Hao
- College of Materials and Metallurgy, Guizhou University , Guiyang 550025 , China
| | - Zhu Luo
- College of Materials and Metallurgy, Guizhou University , Guiyang 550025 , China
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Shen Q, Hu C, Miao J, Chen J, Peng Y, Pan T, He X, Yuan J, Ni S, Wang Y, Luo Z. First-in-human safety, tolerability, and pharmacokinetics of ammoxetine in healthy subjects: a randomized, double-blind, placebo-controlled phase I study. Eur J Pharm Sci 2021; 159:105724. [PMID: 33482315 DOI: 10.1016/j.ejps.2021.105724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/24/2020] [Accepted: 01/13/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Ammoxetine is a novel selective serotonin and norepinephrine reuptake inhibitor. Preclinical studies have indicated the potential utility of ammoxetine for therapy in major depressive disorder. PURPOSE To investigate the first-in-human safety, tolerability, and pharmacokinetics (PK) of ammoxetine in healthy subjects and evaluate the effect of CYP2C19 polymorphisms on metabolism of ammoxetine. METHODS In this randomized, double-blind, placebo-controlled phase I study, healthy Chinese subjects were allocated to receive 2.5, 7.5, 15, 30, 45, 65, 100 mg ammoxetine or placebo in single-dose part and 15, 30, 45 mg ammoxetine or placebo twice daily for 8 days in multiple-dose part. Pharmacokinetic, safety and tolerability assessments were performed. RESULTS A total of 134 subjects were screened and 94 were enrolled. All the ammoxetine-related adverse events (AEs) were mild and resolved spontaneously. No hepatic AEs were reported during the study. Ammoxetine was well absorbed after oral administration with Tmax reached in 5.0-6.0 h. After single-dosing, Cmax and AUC increased proportionally with dose, except at 65 mg. After multiple-dosing, the exposures of ammoxetine at steady state increased slightly in a more-than-dose-proportional manner over the dose range studied, probably due to the saturated elimination. Steady state was achieved 6 days after multiple-dosing was initiated. The low extent of urinary excretion of ammoxetine (< 2%) indicated it is undergoing extensive metabolism. CYP2C19 polymorphisms had minimal effect on metabolism of ammoxetine. CONCLUSIONS Ammoxetine has a favorable pharmacokinetic profile after oral administration and good safety properties. The PK and safety profiles of ammoxetine could enable further clinical development in patients with major depressive disorder.
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Affiliation(s)
- Qi Shen
- GCP Center/ Institute of Drug Clinical Trials, West China Hospital of Sichuan University, Sichuan, China
| | - Chao Hu
- GCP Center/ Institute of Drug Clinical Trials, West China Hospital of Sichuan University, Sichuan, China
| | - Jia Miao
- GCP Center/ Institute of Drug Clinical Trials, West China Hospital of Sichuan University, Sichuan, China
| | - Junxia Chen
- Department of Medicine, CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd., Hebei, China
| | - Yueying Peng
- Department of Medicine, CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd., Hebei, China
| | - Tingting Pan
- Department of Project Management, CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd., Hebei, China
| | - Xiaolin He
- Department of Medicine, CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd., Hebei, China
| | - Jing Yuan
- Department of Biostatistics, CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd., Hebei, China
| | - Shaonan Ni
- Department of Biostatistics, CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co., Ltd., Hebei, China
| | - Yongsheng Wang
- GCP Center/ Institute of Drug Clinical Trials, West China Hospital of Sichuan University, Sichuan, China.
| | - Zhu Luo
- GCP Center/ Institute of Drug Clinical Trials, West China Hospital of Sichuan University, Sichuan, China.
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Cai L, Chen Y, Tong X, Wu X, Bao H, Shao Y, Luo Z, Wang X, Cao Y. P35.29 The Genomic Landscape of Lung Cancer Patients Highlights Age-Dependent Mutation Frequencies and Clinical Actionability in Young Patients. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.730] [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: 11/28/2022]
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Li T, Yan GL, Luo Z, Xie Q, Lai MM, Chen ZG, Zheng XQ. Chronic Pediatric Immune Thrombocytopenia Is Not Associated With Herpes Virus Infection Status. Front Pediatr 2021; 9:641535. [PMID: 34926334 PMCID: PMC8678596 DOI: 10.3389/fped.2021.641535] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 11/01/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Immune thrombocytopenia (ITP) is characterized by non-chronic (transient, <12 months) and chronic (≥12 months) decline in the number of platelets. Herpes virus infections have been shown, in many studies, to be associated with the development of ITP. However, it remains unclear whether the herpes virus infection status is associated with the chronic ITP. Methods: We reviewed 480 primary pediatric patients with ITP in the period from January 2017 to December 2019. The prevalence of herpes virus antibodies including the Cytomegalovirus (CMV), Herpes simplex virus 1 (HSV-1), Herpes simplex virus 2 (HSV-2), and Epstein Barr virus were recorded. The levels of serum complement C3 and C4, T (CD3+, CD4+, CD8+), B (CD19+) lymphocytes, and natural killer (CD16+ 56+) cells were also analyzed. Multivariate analysis was used to evaluate the associations between chronic ITP and herpes virus infection status. Results: Compared with non-chronic, patients with chronic ITP had older age (≥3 years), lower levels of hemoglobin and complement C3, and lower probability of CMV and HSV-2 infections (IgM positive; p < 0.05). Patients with herpes virus infection had lower serum platelet counts (p < 0.001), lower complement C3 levels and lower CD4+/CD8+ cells ratio (p < 0.05). Furthermore, platelet counts were positively correlated with CD4+/CD8+ cells ratios (r = 0.519; p = 0.0078), and negatively correlated with T cells (CD3+: r = -0.458, p = 0.0213; CD8+: r = -0.489, p = 0.0131). Multivariate analysis showed that age (OR, 1.644; 95%CI, 1.007-2.684; p = 0.047) was an adverse risk factor for chronic ITP and CMV IgM positive (OR, 0.241; 95%CI, 0.072-0.814; p = 0.022) had lower risk of chronic ITP development, while other herpes virus infection statuses and clinical features were not. Conclusion: Although herpes virus infections were associated with the onset of ITP, our findings indicated that herpes virus infection status might not be a risk factor for chronic ITP.
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Affiliation(s)
- Tao Li
- Department of Laboratory Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Key Laboratory of Laboratory Medicine, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Ministry of Education of China, Wenzhou, China
| | - Gui-Ling Yan
- Department of Laboratory Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Key Laboratory of Laboratory Medicine, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Ministry of Education of China, Wenzhou, China
| | - Zhu Luo
- Department of Laboratory Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Key Laboratory of Laboratory Medicine, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Ministry of Education of China, Wenzhou, China
| | - Qi Xie
- Department of Laboratory Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Key Laboratory of Laboratory Medicine, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Ministry of Education of China, Wenzhou, China
| | - Mei-Mei Lai
- Department of Laboratory Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhan-Guo Chen
- Department of Laboratory Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiao-Qun Zheng
- Department of Laboratory Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Key Laboratory of Laboratory Medicine, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Ministry of Education of China, Wenzhou, China
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Fang Y, Li L, Yang J, Hoang S, Wang L, Xu J, Yang W, Pan C, Zhu Y, Deng H, Luo Z, Sun C, Gao D, Li Z, Guo Y. Engineering the Nucleophilic Active Oxygen Species in CuTiO x for Efficient Low-Temperature Propene Combustion. Environ Sci Technol 2020; 54:15476-15488. [PMID: 33156618 DOI: 10.1021/acs.est.0c05845] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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
Industrialization has resulted in the rapid increase of volatile organic compound (VOC) emissions, which have caused serious issues to human health and the environment. In this study, an extensive Cu incorporating TiO2 induced nucleophilic oxygen structure was constructed in the CuTiOx catalyst, which exhibited superior low-temperature catalytic activity for C3H6 combustion. Thorough structural, surface characterization and density functional theory (DFT) calculations revealed that the Cu-O-Ti hybridization induced nucleophilic oxygen initiates C3H6 combustion by abstracting the C-H bond. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) results indicated that incorporated copper species acted as the major adsorbent site for the propene molecule. In combination of the DRIFTS and DFT results, the promotion effect of the nucleophilic O on the C-H bond abstraction and CO2 formation pathway was proposed. The surface doping induced nucleophilic oxygen as strong Brønsted basic sites for low-temperature propene combustion exemplified an efficient strategy for rational design of next-generation environmental catalysts.
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Affiliation(s)
- Yarong Fang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Li Li
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Ji Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Son Hoang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Liming Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Jue Xu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Weiwei Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Chuanqi Pan
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yuhua Zhu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Hongtao Deng
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Zhu Luo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Chuanzhi Sun
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250014, P. R. China
| | - Daqiang Gao
- Key Laboratory for Magnetism and Magnetic Materials of MOE, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University, Lanzhou, 730000 Gansu, P. R. China
| | - Zhenguo Li
- National Engineering Laboratory for Mobile Source Emission Control Technology, China Automotive Technology & Research Center Co., Ltd, Tianjin 300300, China
| | - Yanbing Guo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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Xia X, Zhang F, Yang L, Li X, Wang J, Linghu C, Luo Z. Low-Temperature Flowable Poly(lactic acid)/Polycaprolactone Blends for the Solvent-Free Preparation of Slow-Released Urea Fertilizer in a Thermal Shear Field. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04419] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiaosong Xia
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Feng Zhang
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Le Yang
- School of Materials and Energy Engineering, Guizhou Institute of Technology, Guiyang 550025, China
| | - Xiaolong Li
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Jun Wang
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Changkai Linghu
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Zhu Luo
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
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Ma WQ, Chen J, Fang W, Yang XQ, Zhu A, Zhang D, Zhong HL, Yang B, Luo Z. LncRNA INHBA-AS1 promotes cell growth, migration, and invasion of oral squamous cell carcinoma by sponging miR-143-3p. Eur Rev Med Pharmacol Sci 2020; 24:9240. [PMID: 33015761 DOI: 10.26355/eurrev_202009_23000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "LncRNA INHBA-AS1 promotes cell growth, migration, and invasion of oral squamous cell carcinoma by sponging miR-143-3p, by W.-Q. Ma, J. Chen, W. Fang, X.-Q. Yang, A. Zhu, D. Zhang, H.-L. Zhong, B. Yang, Z. Luo, published in Eur Rev Med Pharmacol Sci 2020; 24 (4): 1821-1828-DOI: 10.26355/eurrev_202002_20360-PMID: 32141551" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/20360.
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Affiliation(s)
- W-Q Ma
- Stomatological Hospital, Southern Medical University, Guangzhou, China
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Wang Z, Tadayasu Y, Hu N, Shu S, Hu C, Luo Z. Pharmacokinetics and safety of tiotropium+olodaterol 5 μg/5 μg fixed-dose combination in Chinese patients with COPD. Pulm Pharmacol Ther 2020; 63:101944. [PMID: 32916296 DOI: 10.1016/j.pupt.2020.101944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/21/2020] [Accepted: 08/29/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is one of the major causes of morbidity and mortality worldwide and in China. For patients with more severe symptoms, initial treatment with long acting β2-agonists and long-acting muscarinic antagonists combination therapy is recommended. Tiotropium + olodaterol fixed-dose combination (Tio + Olo FDC) is an aqueous solution of tiotropium bromide and olodaterol delivered by the RESPIMAT® Soft Mist™ inhaler for patients with moderate to very severe COPD. METHODS This single site, open-label, phase Ib clinical study assessed the pharmacokinetic (PK) and safety profiles of once-daily Tio + Olo FDC (5 μg/5 μg) after single dose and at steady state in Chinese patients with moderate to severe COPD over 3 weeks. The PK and safety profiles of Japanese and Caucasian populations from 2 independent COPD studies were provided for comparison. RESULTS A total of 12 Chinese patients received Tio + Olo FDC. After multiple inhaled administration of Tio + Olo FDC, tiotropium and olodaterol were rapidly absorbed and reached peak plasma concentration at about 5 and 25 min, respectively. The accumulation ratios after multiple administrations were 1.3 and 1.6 for tiotropium and olodaterol in Chinese patients. Tio + Olo FDC was well-tolerated; all AEs were mild. CONCLUSION Tio + Olo FDC (5 μg/5 μg) was rapidly absorbed and had a good safety profile in Chinese patients with COPD.
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Affiliation(s)
- Zhenlei Wang
- GCP Center/Institute of Drug Clinical Trials, West China Hospital, Sichuan University, People's Republic of China
| | | | - Na Hu
- Boehringer Ingelheim (China) Investment Corporation Limited, Shanghai, People's Republic of China
| | - Shiqing Shu
- GCP Center/Institute of Drug Clinical Trials, West China Hospital, Sichuan University, People's Republic of China
| | - Chao Hu
- GCP Center/Institute of Drug Clinical Trials, West China Hospital, Sichuan University, People's Republic of China
| | - Zhu Luo
- GCP Center/Institute of Drug Clinical Trials, West China Hospital, Sichuan University, People's Republic of China.
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64
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Chen M, Huang D, She X, Shen X, Zhang H, Luo Z. 1408P The landscape of ROS1 fusion in patients with non-small cell lung cancer in China. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1722] [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: 10/23/2022] Open
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65
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Liu X, Zhang X, Cao J, Wang H, Wu X, Luo Z. 1652P A prospective, single-arm phase II study of pegylated-liposome doxorubincin combined with ifosfamide as first-line treatment for patients with advanced or metastatic soft tissue sarcoma. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Luo Z, Bi X. 1943P TERT-associated DNA polymerases genes link CD8+ T cells to improve immunotherapy response rate. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1335] [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: 11/28/2022] Open
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67
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Zheng R, Niu J, Wu S, Wang T, Wang S, Xu M, Chen Y, Dai M, Zhang D, Yu X, Tang X, Hu R, Ye Z, Shi L, Su Q, Yan L, Qin G, Wan Q, Chen G, Gao Z, Wang G, Shen F, Luo Z, Qin Y, Chen L, Huo Y, Li Q, Zhang Y, Liu C, Wang Y, Wu S, Yang T, Deng H, Chen L, Zhao J, Mu Y, Xu Y, Li M, Lu J, Wang W, Zhao Z, Xu Y, Bi Y, Ning G. Gender and age differences in the association between sleep characteristics and fasting glucose levels in Chinese adults. Diabetes Metab 2020; 47:101174. [PMID: 32659495 DOI: 10.1016/j.diabet.2020.07.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/24/2020] [Accepted: 07/01/2020] [Indexed: 01/19/2023]
Abstract
AIM The present study examined the associations between night-time sleep duration, midday napping duration and bedtime, and fasting glucose levels, and whether or not such associations are dependent on gender and age. METHODS This study was a cross-sectional analysis of 172,901 adults aged≥40 years living in mainland China. Sleep duration was obtained by self-reports of bedtime at night, waking-up time the next morning and average napping duration at midday. Fasting plasma glucose (FPG)≥7.0mmol/L was defined as hyperglycaemia. Independent associations between night-time sleep duration, midday naptime duration and bedtime with hyperglycaemia were evaluated using regression models. RESULTS Compared with night-time sleep durations of 6-7.9h, both short (<6h) and long (≥8h) night-time sleep durations were significantly associated with an increased risk of hyperglycaemia in women [odds ratio (OR): 1.12, 95% confidence interval (CI): 1.01-1.29 and OR: 1.14, 95% CI: 1.08-1.21, respectively], and revealed a U-shaped distribution of risk in women and no significant association in men. Long midday nap durations (≥1h) were significantly but weakly associated with hyperglycaemia (OR: 1.04, 95% CI: 1.01-1.09) compared with no napping without interactions from gender or age, whereas the association between bedtime and fasting glucose levels did vary according to gender and age. CONCLUSION Night-time sleep duration, midday napping duration and bedtime were all independently associated with the risk of hyperglycaemia, and some of the associations between these sleep characteristics and hyperglycaemia were gender- and age-dependent.
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Affiliation(s)
- R Zheng
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - J Niu
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - S Wu
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - T Wang
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - S Wang
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - M Xu
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Y Chen
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - M Dai
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - D Zhang
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - X Yu
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X Tang
- First Hospital of Lanzhou University, Lanzhou, China
| | - R Hu
- Zhejiang Provincial Centre for Disease Control and Prevention, Zhejiang, China
| | - Z Ye
- Zhejiang Provincial Centre for Disease Control and Prevention, Zhejiang, China
| | - L Shi
- Affiliated Hospital of Guiyang Medical College, Guiyang, China
| | - Q Su
- Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - L Yan
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - G Qin
- First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Q Wan
- Affiliated Hospital of Luzhou Medical College, Luzhou, China
| | - G Chen
- Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
| | - Z Gao
- Dalian Municipal Central Hospital, Dalian Medical University, Dalian, China
| | - G Wang
- First Hospital of Jilin University, Changchun, China
| | - F Shen
- First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Z Luo
- First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Y Qin
- First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - L Chen
- Qilu Hospital of Shandong University, Jinan, China
| | - Y Huo
- Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Nanchang, China
| | - Q Li
- Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Y Zhang
- Central Hospital of Shanghai Jiading District, Shanghai, China
| | - C Liu
- Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, China
| | - Y Wang
- First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - S Wu
- Karamay Municipal People's Hospital, Xinjiang, China
| | - T Yang
- First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - H Deng
- First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - L Chen
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - J Zhao
- Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Y Mu
- Chinese People's Liberation Army General Hospital, Beijing, China
| | - Y Xu
- Clinical Trials Centre, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - M Li
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - J Lu
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - W Wang
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
| | - Z Zhao
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China.
| | - Y Xu
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China.
| | - Y Bi
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China.
| | - G Ning
- Shanghai National Clinical Research Centre for Metabolic Diseases, Key Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of China, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, China
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Vajravijayan S, Pletnev S, Luo Z, Pletnev VZ, Nandhagopal N, Gunasekaran K. Crystallographic and calorimetric analysis on Pleurotus ostreatus lectin and its sugar complexes - promiscuous binding driven by geometry. Int J Biol Macromol 2020; 152:862-872. [PMID: 32112837 DOI: 10.1016/j.ijbiomac.2020.02.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/21/2020] [Accepted: 02/25/2020] [Indexed: 11/15/2022]
Abstract
Carbohydrate recognition is established as a property of lectins and implicated in many functions including immunity and defense against pathogens. Many lectins are characterized and proposed for various applications owing to the above said recognition. The crystal structure of a lectin from Pleurotus ostreatus has been determined and shown to be calcium dependent. The overall structure is a tandem repeat of two β-jelly roll domains, a new fold for lectins. The calcium dependence of sugar binding is analyzed in-detail through isothermal titration calorimetry. The serendipitous observation of malonate and glycerol, the intentional N-Acetyl-D-galactosamine, D-Galactose and L-Rhamnose binding to Pleurotus ostreatus lectin by Ca2+ coordination revealed that the binding site is promiscuous. Among these sugars, Rhamnose binding found to be thermodynamically most favourable. In all these structures, a vicinal diol motif, one at axial and the other at equatorial positions could be established as a specific requirement for binding. Interestingly, when compared with other calcium mediated lectin structures; this geometric requirement is found conserved. This observation could lead to the conclusion that lectins are not 'molecule specific' but 'geometry specific' so that any molecule not necessarily a sugar may be recognized by this lectin if the geometry exists.
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Affiliation(s)
- S Vajravijayan
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India
| | - S Pletnev
- Leidos Biomedical Research, Inc., Basic Research Program, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
| | - Z Luo
- Synchrotron Radiation Research Section, MCL, National Cancer Institute, Argonne National Laboratory, Argonne, IL 60439, USA; Institute of Molecular Enzymology, Soochow University, Suzhou, Jiangsu 215123, China
| | - V Z Pletnev
- 117997, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - N Nandhagopal
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
| | - K Gunasekaran
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
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Zhong J, Luo Z, Yang L, Sheng X, Li X, Yin L, Yang B. Construction of an in situ interfacial layer for aramid fiber reinforced styrene butadiene rubber composites. J Appl Polym Sci 2020. [DOI: 10.1002/app.49420] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jincheng Zhong
- Guizhou Rubber Engineering Laboratory, College of Materials and MetallurgyGuizhou University Guiyang China
| | - Zhu Luo
- Guizhou Rubber Engineering Laboratory, College of Materials and MetallurgyGuizhou University Guiyang China
| | - Le Yang
- Guizhou Rubber Engineering Laboratory, College of Materials and MetallurgyGuizhou University Guiyang China
| | - Xiang Sheng
- Guizhou Rubber Engineering Laboratory, College of Materials and MetallurgyGuizhou University Guiyang China
| | - Xiaolong Li
- Guizhou Rubber Engineering Laboratory, College of Materials and MetallurgyGuizhou University Guiyang China
| | - Lianpeng Yin
- Guizhou Rubber Engineering Laboratory, College of Materials and MetallurgyGuizhou University Guiyang China
| | - Bo Yang
- Guizhou Rubber Engineering Laboratory, College of Materials and MetallurgyGuizhou University Guiyang China
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Yao Z, Wang Z, Fang B, Chen J, Zhang X, Luo Z, Huang L, Zou H, Yang Y. Involvement of nitrogen in storage root growth and related gene expression in sweet potato (Ipomoea batatas). Plant Biol (Stuttg) 2020; 22:376-385. [PMID: 31943638 DOI: 10.1111/plb.13088] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 12/17/2019] [Indexed: 06/10/2023]
Abstract
Nitrogen (N) could affect storage root growth and development of sweet potato. To manage external N concentration fluctuations, plants have developed a wide range of strategies, such as growth changes and gene expression. Five sweet potato cultivars were used to analyse the functions of N in regulating storage root growth. Growth responses and physiological indicators were measured to determine the physiological changes regulated by different N concentrations. Expression profiles of related genes were analysed via microarray hybridization data and qRT-PCR analysis to reveal the molecular mechanisms of storage root growth regulated by different N concentrations. The growth responses and physiological indicators of the five cultivars were changed by N concentration. The root fresh weight of two of the sweet potato cultivars, SS19 and GS87, was higher under low N concentrations compared with the other cultivars. SS19 and GS87 were found to be having greater tolerance to low N concentration. The expression of N metabolism and storage root growth related genes was regulated by N concentration in sweet potato. These results reveal that N significantly regulated storage root growth. SS19 and GS87 were more tolerant to low N concentration and produced greater storage root yield (at 30 days). Furthermore, several N response genes were involved in both N metabolism and storage root growth.
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Affiliation(s)
- Z Yao
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Z Wang
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - B Fang
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - J Chen
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - X Zhang
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Z Luo
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - L Huang
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - H Zou
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Y Yang
- Guangdong Provincial Key Laboratory of Crops Genetics and Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
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Moan ER, Horne RA, Arpornthip T, Luo Z, Fallon AJ, Berl SJ, Sackett CA. Quantum Rotation Sensing with Dual Sagnac Interferometers in an Atom-Optical Waveguide. Phys Rev Lett 2020; 124:120403. [PMID: 32281864 DOI: 10.1103/physrevlett.124.120403] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 01/07/2020] [Accepted: 03/09/2020] [Indexed: 06/11/2023]
Abstract
We describe a Sagnac interferometer suitable for rotation sensing, implemented using an atomic Bose-Einstein condensate confined in a harmonic magnetic trap. The atom wave packets are split and recombined by standing-wave Bragg lasers, and the trapping potential steers the packets along circular trajectories with a radius of 0.2 mm. Two conjugate interferometers are implemented simultaneously to provide common-mode rejection of noise and to isolate the rotation signal. With interference visibilities of about 50%, we achieve a rotation sensitivity comparable to Earth's rate in about 10 min of operation. Gyroscope operation was demonstrated by rotating the optical table on which the experiment was performed.
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Affiliation(s)
- E R Moan
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - R A Horne
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - T Arpornthip
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - Z Luo
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - A J Fallon
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - S J Berl
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
| | - C A Sackett
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA
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Ma WQ, Chen J, Fang W, Yang XQ, Zhu A, Zhang D, Zhong HL, Yang B, Luo Z. LncRNA INHBA-AS1 promotes cell growth, migration, and invasion of oral squamous cell carcinoma by sponging miR-143-3p. Eur Rev Med Pharmacol Sci 2020; 24:1821-1828. [PMID: 32141551 DOI: 10.26355/eurrev_202002_20360] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Recent studies have revealed that long noncoding RNAs (lncRNAs) play important roles in the progression of tumorigenesis. Oral squamous cell carcinoma is a disease widely widespread all over the world. The aim of this study was to identify how lncRNA INHBA-AS1 functions in the progression of OSCC. PATIENTS AND METHODS LncRNA INHBA-AS1 expression in both OSCC cells and 48 paired tissue samples was detected by Real Time-quantitative Polymerase Chain Reaction (RT-qPCR). The function of INHBA-AS1 was identified by the transwell assay, wound healing assay, and proliferation assay in vitro. Meanwhile, the role of INHBA-AS1 was investigated through tumor formation assay in vivo. Furthermore, the underlying mechanism was explored by the luciferase assays and RNA immunoprecipitation assay (RIP). RESULTS INHBA-AS1 was highly expressed in OSCC tissues when compared with adjacent tissue samples. The proliferation, invasion, and migration of OSCC cells were significantly inhibited after the knockdown of INHBA-AS1 in vitro. Meanwhile, the knockdown of INHBA-AS1 remarkably inhibited tumor growth and metastasis in vivo. Besides, miR-143-3p was down-regulated after the knockdown of INHBA-AS1 in vitro. The expression of miR-143-3p was negatively correlated with the expression of INHBA-AS1 in OSCC tissues. In addition, miR-143-3p was directly targeted by INHBA-AS1. CONCLUSIONS The knockdown of INHBA-AS1 repressed cell migration, invasion, and proliferation in OSCC by sponging miR-143-3p, which might offer a new therapeutic intervention for OSCC patients.
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Affiliation(s)
- W-Q Ma
- Stomatological Hospital, Southern Medical University, Guangzhou, China.
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Hu C, Miao J, Shu S, Wang Y, Zhu X, Luo Z. Pharmacokinetics, pharmacodynamics and safety of a novel extrafine BDP/FF/GB combination delivered via metered-dose inhaler in healthy Chinese subjects. Eur J Pharm Sci 2020; 144:105198. [PMID: 31862312 DOI: 10.1016/j.ejps.2019.105198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 12/14/2019] [Accepted: 12/16/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND BDP/FF/GB pMDI is a novel triple fixed-dose combination of extra-fine inhalation aerosol beclomethasone dipropionate (BDP)/formoterol fumarate (FF)/glycopyrronium bromide (GB). Limited data on the pharmacokinetic (PK) and pharmacodynamic (PD) properties of BDP/FF/GB fixed-dose combination in healthy subjects was available. PURPOSES This study aimed to evaluate the pharmacokinetics, pharmacodynamics and safety of BDP/FF/GB pMDI in healthy Chinese subjects. METHODS This is an open-label, parallel-group, randomized, single and multiple dose study. In the single dose group, subjects received single supra-therapeutic inhaled dose of BDP/FF/GB pMDI (BDP/FF/GB 400/24/50 µg). In the multiple dose group, subjects received therapeutic inhaled dose of BDP/FF/GB pMDI (BDP/FF/GB 200/12/25 µg), twice daily, for 7 consecutive days. Plasma BDP, B17MP, formoterol and GB were determined by a validated ultra performance liquid chromatography method with tandem mass spectrometric detection (UPLC/MS-MS). Heart rate (HR), QTcF, systolic blood pressure (SBP) and diastolic blood pressure (DBP) were evaluated as the surrogate indicators of pharmacodynamic effects. RESULTS A total of 24 subjects were randomized and 22 (11 in each group) completed the study. The dose adjusted pharmacokinetic profiles of BDP, beclomethasone-17-monopropionate (B17MP, the most active metabolite of BDP), formoterol and GB were overall similar in therapeutic and supra- therapeutic dose group, showing dose proportional increase of the systemic exposure to BDP, B17MP, formoterol and GB. The pharmacodynamic variables were within the normal range and showed no significant difference between the two groups. All the treatment-emergent adverse events (TEAEs) were mild and no severe TEAE was reported. CONCLUSIONS Dose adjusted PK profiles were similar between therapeutic and supra-therapeutic dose for all compounds, nearly dose proportional systemic exposure to B17MP, formoterol and GB after BDP/FF/GB pMDI administration in healthy Chinese subjects. BDP/FF/GB pMDI was safe and well tolerated in healthy Chinese subjects. The PK profiles were comparable to previously published data from Western European healthy Caucasian subjects.
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Affiliation(s)
- Chao Hu
- GCP Center / Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Jia Miao
- GCP Center / Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Shiqing Shu
- GCP Center / Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Ying Wang
- GCP Center / Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Xiaohong Zhu
- GCP Center / Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Zhu Luo
- GCP Center / Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu 610041, PR China.
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LUAN Z, Huo X, Ming W, Sun X, Du C, Luo Z, Zhou Y, He Y, Chen L, Zhang X, Guan Y. SUN-042 PREGNANE X RECEPTOR (PXR) IS A NOVEL THERAPEUTIC TARGET FOR THE TREATMENT OF CISPLATIN-INDUCED NEPHROTOXICITY IN MICE. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.565] [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: 11/28/2022] Open
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75
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Fang Y, Chi X, Li L, Yang J, Liu S, Lu X, Xiao W, Wang L, Luo Z, Yang W, Hu S, Xiong J, Hoang S, Deng H, Liu F, Zhang L, Gao P, Ding J, Guo Y. Elucidating the Nature of the Cu(I) Active Site in CuO/TiO 2 for Excellent Low-Temperature CO Oxidation. ACS Appl Mater Interfaces 2020; 12:7091-7101. [PMID: 31931575 DOI: 10.1021/acsami.9b18264] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Stabilized Cu+ species have been widely considered as catalytic active sites in composite copper catalysts for catalytic reactions with industrial importance. However, few examples comprehensively explicated the origin of stabilized Cu+ in a low-cost and widely investigated CuO/TiO2 system. In this study, mass producible CuO/TiO2 catalysts with interface-stabilized Cu+ were prepared, which showed excellent low-temperature CO oxidation activity. A thorough characterization and theoretical calculations proved that the strong charge-transfer effect and Ti-O-Cu hybridization in Ti-doped CuO(111) at the CuO/TiO2 interface contributed to the formation and stabilization of Cu+ species. The CO molecule adsorbed on Cu+ and reacted directly with Ti doping-promoted active lattice oxygen via a Mars-van Krevelen mechanism, leading to the enhanced low-temperature activity.
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Affiliation(s)
- Yarong Fang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Xiao Chi
- Singapore Synchrotron Light Source National University of Singapore , 5 Research Link , 117603 , Singapore
| | - Li Li
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Ji Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Shoujie Liu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Xingxu Lu
- Department of Chemical, Materials and Biomolecular Engineering, Institute of Materials Science , University of Connecticut , Storrs , Connecticut 06269-3136 , United States
| | - Wen Xiao
- Department of Materials Science and Engineering , National University of Singapore , 117575 , Singapore
| | - Liming Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, Institute of High Energy Physics Department of Materials Science and Engineering , Chinese Academy of Sciences , Beijing 100049 , China
| | - Zhu Luo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Weiwei Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Siyu Hu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Juxia Xiong
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Son Hoang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Hongtao Deng
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center , University of Central Florida , Orlando , Florida 32816 , United States
| | - Lizhi Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Puxian Gao
- Department of Chemical, Materials and Biomolecular Engineering, Institute of Materials Science , University of Connecticut , Storrs , Connecticut 06269-3136 , United States
| | - Jun Ding
- Department of Materials Science and Engineering , National University of Singapore , 117575 , Singapore
| | - Yanbing Guo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
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Li X, Gong S, Yang L, Zhang F, Xie L, Luo Z, Xia X, Wang J. Study on the degradation behavior and mechanism of Poly(lactic acid) modification by ferric chloride. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.121991] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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77
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Peng L, Jing G, Luo Z, Yuan X, Wang Y, Zhang B. Temperature and Strain Correlation of Bridge Parallel Structure Based on Vibrating Wire Strain Sensor. Sensors (Basel) 2020; 20:s20030658. [PMID: 31991640 PMCID: PMC7038346 DOI: 10.3390/s20030658] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 11/16/2022]
Abstract
Deformation is a ubiquitous phenomenon in nature. This process usually refers to the change in shape, size, and position of an object in the time and spatial domain under various loads. Under normal circumstances, during engineering construction, technicians are generally required to monitor the safe operation of structural facilities in the transportation field and the health of bridge, because monitoring in the engineering process plays an important role in construction safety. Considering the reliability risk of sensors after a long-time work period, such as signal drift, accurate measurement of strain gauges is inseparable from the value traceability system of high-precision strain gauges. In this study, two vibrating wire strain gauges with the same working principle were measured using the parallel method at similar positions. First, based on the principle of time series, the experiment used high-frequency dynamic acquisition to measure the thermometer strain of two vibrating wire strain gauges. Second, this experiment analyzed the correlation between strain and temperature measured separately. Under the condition of different prestress, this experiment studied the influencing relationship of temperature corresponding variable. In this experiment, the measurement repetitiveness was analyzed using the meteorology knowledge of single sensor data, focused on researching the influence of temperature and prestress effect on sensors by analyzing differences of their measurement results in a specified situation. Then, the reliability and stability of dynamic vibrating wire strain gauge were verified in the experiment. The final conclusion of the experiment is the actual engineering in the later stage. Onsite online meteorology in the application provides support.
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Affiliation(s)
- Lu Peng
- National Center of Metrization for Equipments of Roads and Bridges, Research Institute of Highway Ministry of Transport, Beijing 100088, China; (G.J.); (Z.L.); (Y.W.); (B.Z.)
- Correspondence:
| | - Genqiang Jing
- National Center of Metrization for Equipments of Roads and Bridges, Research Institute of Highway Ministry of Transport, Beijing 100088, China; (G.J.); (Z.L.); (Y.W.); (B.Z.)
| | - Zhu Luo
- National Center of Metrization for Equipments of Roads and Bridges, Research Institute of Highway Ministry of Transport, Beijing 100088, China; (G.J.); (Z.L.); (Y.W.); (B.Z.)
| | - Xin Yuan
- School of Electrical and Information Engineering, Wuhan Institute of Technology, Wuhan 430205, China;
| | - Yixu Wang
- National Center of Metrization for Equipments of Roads and Bridges, Research Institute of Highway Ministry of Transport, Beijing 100088, China; (G.J.); (Z.L.); (Y.W.); (B.Z.)
| | - Bing Zhang
- National Center of Metrization for Equipments of Roads and Bridges, Research Institute of Highway Ministry of Transport, Beijing 100088, China; (G.J.); (Z.L.); (Y.W.); (B.Z.)
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Hao GW, Ma GG, Liu BF, Yang XM, Zhu DM, Liu L, Zhang Y, Liu H, Zhuang YM, Luo Z, Tu GW. Evaluation of two intensive care models in relation to successful extubation after cardiac surgery. Med Intensiva 2020; 44:27-35. [PMID: 30146128 DOI: 10.1016/j.medin.2018.07.005] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/27/2018] [Accepted: 07/02/2018] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To compare outcomes between intensivist-directed and cardiac surgeon-directed care delivery models. DESIGN This retrospective, historical-control study was performed in a cohort of adult cardiac surgical patients at Zhongshan Hospital (Fudan University, China). During the first phase (March to August 2015), cardiac surgeons were in charge of postoperative care while intensivists were in charge during the second phase (September 2015-June 2016). Both phases were compared regarding successful extubation rate, intensive care unit (ICU) length of stay (LOS), and in-hospital mortality. SETTING Tertiary Zhongshan Hospital (Fudan University, China). PATIENTS Consecutive adult patients admitted to the cardiac surgical ICU (CSICU) after heart surgery. INTERVENTIONS Phase I patients treated by cardiac surgeons, and phase II patients treated by intensivists. MAIN VARIABLES OF INTEREST Successful extubation, ICU LOS and in-hospital mortality. RESULTS A total of 1792 (phase I) and 3007 patients (phase II) were enrolled. Most variables did not differ significantly between the two phases. However, patients in phase II had a higher successful extubation rate (99.17% vs. 98.55%; p=0.043) and a shorter median duration of mechanical ventilation (MV) (18 vs. 19h; p<0.001). In relation to patients with MV duration >48h, those in phase II had a comparatively higher successful extubation rate (p=0.033), shorter ICU LOS (p=0.038) and a significant decrease in in-hospital mortality (p=0.039). CONCLUSIONS The intensivist-directed care model showed improved rates of successful extubation and shorter MV durations after cardiac surgery.
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Affiliation(s)
- G-W Hao
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai 200032, PR China
| | - G-G Ma
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai 200032, PR China
| | - B-F Liu
- Department of Critical Care Medicine, The First People's Hospital of Zhangjiagang, Suzhou, China
| | - X-M Yang
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai 200032, PR China
| | - D-M Zhu
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai 200032, PR China
| | - L Liu
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai 200032, PR China
| | - Y Zhang
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai 200032, PR China
| | - H Liu
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai 200032, PR China
| | - Y-M Zhuang
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai 200032, PR China
| | - Z Luo
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai 200032, PR China.
| | - G-W Tu
- Department of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Xuhui District, Shanghai 200032, PR China.
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Luo Z, Miao J, Shu S, Wang Y, Zhu X, Hu C, Shen Y. Pharmacokinetics and Bioequivalence Evaluation of a New Oxycodone Tamper-Resistant Tablet Administered with an Opioid Antagonist in Patients with Chronic Pain. Clin Drug Investig 2019; 40:139-148. [PMID: 31679120 DOI: 10.1007/s40261-019-00870-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND OBJECTIVES Oxycodone tamper resistant (OTR) is a new extended-release abuse-deterrent formulation providing improvements in the tamper resistant characteristics. This study aimed to investigate the pharmacokinetic properties of the new OTR tablets and evaluate the bioequivalence of oxycodone from OTR and the original extended release (ER) formulation tablets administered with an opioid antagonist in patients with chronic pain. METHODS In this open-label, randomized, cross-over study, the enrolled patients were randomised to receive a single dose of 40 mg OTR or 40 mg OXYCONTIN® (OXY) tablet administered with naltrexone blockade under fasting conditions. Serial blood samples for pharmacokinetic analysis were collected. Plasma oxycodone was quantified by a high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method. Tolerability was evaluated by monitoring adverse events, physical examinations, 12-lead ECG and laboratory tests. RESULTS A total of 38 patients were enrolled and 33 subjects completed the study. After a single dose of 40 mg tablets, pharmacokinetic results of the new OTR tablet were found to be similar to those of original extended-release oxycodone tablet. OTR 40 mg was bioequivalent to OXY 40 mg and was well tolerated in patients with chronic pain. CONCLUSIONS The new OTR formulation could provide a new choice in the treatment of chronic pain and reduce the potential for oxycodone abuse. Chictr.org identifier: ChiCTR1800017253.
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Affiliation(s)
- Zhu Luo
- GCP Center/Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Jia Miao
- GCP Center/Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Shiqing Shu
- GCP Center/Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Ying Wang
- GCP Center/Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Xiaohong Zhu
- GCP Center/Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Chao Hu
- GCP Center/Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Yali Shen
- Department of Abdominal Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China.
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Luo Z, Zhao H, Li Z, Mao R, Zhao J, Ge D, Zhang F, Zhou Y, Chen X, Cai J, Bi X. Development and validation of a metastasis-associated immune prognostic model for concurrent metastatic colorectal cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.081] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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81
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Yang J, Hu S, Fang Y, Hoang S, Li L, Yang W, Liang Z, Wu J, Hu J, Xiao W, Pan C, Luo Z, Ding J, Zhang L, Guo Y. Oxygen Vacancy Promoted O2 Activation over Perovskite Oxide for Low-Temperature CO Oxidation. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02408] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Ji Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Siyu Hu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Yarong Fang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Son Hoang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Li Li
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Weiwei Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Zhenfeng Liang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Jian Wu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Jinpeng Hu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Wen Xiao
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Chuanqi Pan
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Zhu Luo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Jun Ding
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Lizhi Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Yanbing Guo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
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Lu Y, Huang H, Liang J, Wang R, Luo Z, Liu W, Huang C, Liu M, Ning X. Induction Therapy of Nituzumab Combined PF Regimen to Improve the Treatment Response and Tolerance of Locally Advanced Nasopharyngeal Carcinoma Undergoing the Concurrent Chemoradiotherapy: A Multi-Center Controlled Randomized Clinical Study. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1568] [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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84
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Luo Z, Fang W, Wang CL, Ma WQ. [Double Labeling and Simultaneous Monitoring for Hsp70 and Hsf-1 Kinetics in SCC-25 Cells with a Short-Term Dietary Restriction of Leucine Following Heat Shock]. Mol Biol (Mosk) 2019; 53:654-662. [PMID: 31397439 DOI: 10.1134/s0026898419040074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 02/01/2019] [Indexed: 11/23/2022]
Abstract
To develop a quantum-dot-based multiplexed imaging system for the simultaneous monitoring of Hsf- 1/Hsp70 after heat shock, and to evaluate the effects of combined thermotherapy and leucine deprivation therapy on Hsf-1 inactivation. SCC-25 cells were leucine starved for 0, 1, 2, 3 or 4 days following which the cells underwent heat shock at 42°C for 30 min. At 6 h after heat shock, Hsf-1 activation and translocation to the nucleus was observed in cells that were leucine starved for 0, 1 and 2 days, and the synthesis of Hsp70 and Hsf-1 reached their maximum values and had a tendency to gather in the nucleus. However, in cells that were leucine starved for 3 and 4 days, Hsf-1 activity and Hsp70 synthesis level was dramatically decreased. Dietary restriction of leucine for at least three days could result in the inactivation of Hsf-1, leading to a reduction in Hsp70 synthesis. The combination of thermotherapy and short-term leucine deprivation therapy may become effective approach for the treatment of oral tumors.
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Affiliation(s)
- Z Luo
- Stomatological Hospital, Southern Medical University,Guangzhou, 510280 China
| | - W Fang
- Stomatological Hospital, Southern Medical University,Guangzhou, 510280 China
| | - C L Wang
- Department of Stomatology, Yancheng Hospital, Medical School of Southeast University, Yancheng, 224001 China.,Department of Stomatology, The Third People's Hospital of Yancheng, Yancheng, 224001 China.,Department of Stomatology, The Sixth Affiliated Hospital of Nantong University, Yancheng, 224001 China.,
| | - W Q Ma
- Stomatological Hospital, Southern Medical University,Guangzhou, 510280 China.,
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85
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Luo Z, Fang W, Wang CL, Ma WQ. Double Labeling and Simultaneous Monitoring for Hsp70 and Hsf-1 Kinetics in SCC-25 Cells with a Short-Term Dietary Restriction of Leucine Following Heat Shock. Mol Biol 2019. [DOI: 10.1134/s002689331907001x] [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: 11/23/2022]
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86
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Georges G, Luo Z, Ciurlia G, Guller P, Girardello L, Mariotti F, Poli G. Pharmacokinetics of the Extrafine Fixed-Dose Combination of Beclomethasone Dipropionate, Formoterol Fumarate, Glycopyrronium Bromide Delivered Via a Pressurized-Metered Dose Inhaler (pMDI) in Chinese Subjects. C32. COPD: TRANSLATIONAL AND MECHANISTIC STUDIES 2019. [DOI: 10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a4527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- G. Georges
- Global Clinical Development, Chiesi, USA, Cary, NC, United States
| | - Z. Luo
- Institute of Drug Clinical Trials, West China Hospital, Sichuan University, Chengdu, China
| | - G. Ciurlia
- Global Clinical Development, Chiesi Farmaceutici, S.p.A., Parma, Italy
| | - P. Guller
- Global Clinical Development, Chiesi Farmaceutici, S.p.A., Parma, Italy
| | | | - F. Mariotti
- Global Clinical Development, Chiesi Farmaceutici, S.p.A., Parma, Italy
| | - G. Poli
- Global Clinical Development, Chiesi Farmaceutici, S.p.A., Parma, Italy
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Wang F, Sui X, Xu N, Yang J, Zhao H, Fei X, Zhang Z, Luo Z, Xin Y, Qin B, Zhao X, Cao S, Zhang Y, Yang Z. The relationship between plasma homocysteine levels and MTHFR gene variation, age, and sex in Northeast China. Niger J Clin Pract 2019; 22:380-385. [PMID: 30837427 DOI: 10.4103/njcp.njcp_291_18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Hyperhomocysteinemia (HHcy) is the risk factor for cardiovascular disease and stroke. However, the impacts on the genetic variation of methylene tetrahydrofolate reductase (MTHFR) on plasma homocysteine levels in the Northeast Chinese population have not been studied. Therefore, this study was carried out to determine the relationship between HHcy and MTHFR gene variation, and whether it was influenced by age and sex of the population in Northeast China. Materials and Methods A total of 466 subjects were randomly enrolled in this study. According to the homocysteine levels (Hcy ≥ 15 μmol/L) of the subjects, they were divided into hyperhomocysteine (HHcy = 206) and normal homocysteine (Hcy = 260). Polymerase chain reaction/high-resolution dissolution curve and homocysteine determination kit methods were used for genotype testing and homocysteine detection, respectively. Results High plasma homocysteine levels are associated with MTHFR 677T and 1298A [P < 0.00, odds ratio (confidence interval) = 1.842 (1.418-2.394) >1], which is related to increasing age (Prange = 0.0005-0.0161), with the homocysteine levels of males higher than females (P < 0.0001). Conclusion High plasma homocysteine levels were linked to the MTHFR gene mutation. In addition, plasma homocysteine levels increased significantly with age with male's homocysteine levels higher than that of females.
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Affiliation(s)
- F Wang
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - X Sui
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - N Xu
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang; Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
| | - J Yang
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - H Zhao
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - X Fei
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - Z Zhang
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - Z Luo
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - Y Xin
- Department of Geriatric Medicine, The First Affiliated Hospital of Jiamusi University, Heilongjiang, People's Republic of China
| | - B Qin
- Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
| | - X Zhao
- Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
| | - S Cao
- Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
| | - Y Zhang
- Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
| | - Z Yang
- Chinese Ministry of Health Key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
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Li X, Wang X, Yang L, Zhang F, Xie L, Luo Z, Xiang K. Synergistic effect of polyfunctional silane coupling agent and styrene acrylonitrile copolymer on the water‐resistant and mechanical performances of glass fiber–reinforced polyamide 6. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4627] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaolong Li
- College of Materials & MetallurgyGuizhou University Guiyang 550025 China
| | - Xinchao Wang
- College of Materials & MetallurgyGuizhou University Guiyang 550025 China
- National Engineering Research Center for Compounding and Modification of Polymer materials Guiyang 550014 China
| | - Le Yang
- College of Materials & MetallurgyGuizhou University Guiyang 550025 China
| | - Feng Zhang
- College of Materials & MetallurgyGuizhou University Guiyang 550025 China
| | - Lijin Xie
- College of Materials & MetallurgyGuizhou University Guiyang 550025 China
| | - Zhu Luo
- College of Materials & MetallurgyGuizhou University Guiyang 550025 China
- National Engineering Research Center for Compounding and Modification of Polymer materials Guiyang 550014 China
| | - Kun Xiang
- School of Physics and Electronic ScienceGuizhou Education University Guiyang 550018 China
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89
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Singh K, Martinell M, Luo Z, Espes D, Stålhammar J, Sandler S, Carlsson PO. Cellular immunological changes in patients with LADA are a mixture of those seen in patients with type 1 and type 2 diabetes. Clin Exp Immunol 2019; 197:64-73. [PMID: 30843600 PMCID: PMC6591143 DOI: 10.1111/cei.13289] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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] [Accepted: 03/01/2019] [Indexed: 12/19/2022] Open
Abstract
There is currently scarce knowledge of the immunological profile of patients with latent autoimmune diabetes mellitus in the adult (LADA) when compared with healthy controls (HC) and patients with classical type 1 diabetes (T1D) and type 2 diabetes (T2D). The objective of this study was to investigate the cellular immunological profile of LADA patients and compare to HC and patients with T1D and T2D. All patients and age‐matched HC were recruited from Uppsala County. Peripheral blood mononuclear cells were isolated from freshly collected blood to determine the proportions of immune cells by flow cytometry. Plasma concentrations of the cytokine interleukin (IL)‐35 were measured by enzyme‐linked immunosorbent assay (ELISA). The proportion of CD11c+CD123– antigen‐presenting cells (APCs) was lower, while the proportions of CD11c+CD123+ APCs and IL‐35+ tolerogenic APCs were higher in LADA patients than in T1D patients. The proportion of CD3–CD56highCD16+ natural killer (NK) cells was higher in LADA patients than in both HC and T2D patients. The frequency of IL‐35+ regulatory T cells and plasma IL‐35 concentrations in LADA patients were similar to those in T1D and T2D patients, but lower than in HC. The proportion of regulatory B cells in LADA patients was higher than in healthy controls, T1D and T2D patients, and the frequency of IL‐35+ regulatory B cells was higher than in T1D patients. LADA presents a mixed cellular immunological pattern with features overlapping with both T1D and T2D.
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Affiliation(s)
- K Singh
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - M Martinell
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
| | - Z Luo
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - D Espes
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden.,Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - J Stålhammar
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
| | - S Sandler
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - P-O Carlsson
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden.,Department of Medical Sciences, Uppsala University, Uppsala, Sweden
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90
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Yu G, Yuan H, Luo Z, Liu Y, Liu X, Gao Y, Gong M, Zou Z. [Establishment of a plant phosphorus utilization and weed control system based on phosphite and its dehydrogenase]. Sheng Wu Gong Cheng Xue Bao 2019; 35:327-336. [PMID: 30806063 DOI: 10.13345/j.cjb.180158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nowadays, available phosphorus (P) deficiency in soil and weed resistance to herbicides have emerged as two severe limiting factors for sustainable agriculture. Therefore, it is of urgent needs to improve plant absorption/utilization ability of the soil P, seek phosphate (Pi)-alternative P fertilizers, and develop new forms of weed control systems. Phosphite (Phi), as a P resource of relatively high amount only less than Pi in Earth, can be converted to utilizable Pi uniquely in some bacterial species by oxidization via its specific dehydrogenase (PTDH), but inhibits plant growth and development. This implies that Phi might rather become a suitable P fertilizer for plants if introducing a PTDH detoxifier from bacteria. Herein, we created the transgenic tobaccos harboring a Pseudomonas PTDH gene (PsPtx) amplified from the soil metagenome previously. RT-PCR showed that the exotic PsPtx gene could express similarly in root, stem and leaf tissues of all transgenic lines. PsPtx transgenic tobaccos could utilize Phi by oxidization as the sole Pi supply, and also outperformed wild-type tobacco with a remarkably dominant growth under Phi stress conditions. Moreover, the PsPtx gene was preliminarily evaluated with a notable quality as a potential candidate of the selection marker in plant genetic transformation. Conclusively, PsPtx and its encoded phosphite dehydrogenase might be applicable for developing a dual system of plant phosphorus utilization and weed control using Phi as P fertilizer and herbicide, and provide an effectual solution to some obstacles in the current crop transgenic studies.
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Affiliation(s)
- Guizhen Yu
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650500, Yunnan, China
| | - Hang Yuan
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650500, Yunnan, China
| | - Zhu Luo
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650500, Yunnan, China
| | - Yanjuan Liu
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650500, Yunnan, China
| | - Xian Liu
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650500, Yunnan, China
| | - Yanxiu Gao
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650500, Yunnan, China
| | - Ming Gong
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650500, Yunnan, China
| | - Zhurong Zou
- Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650500, Yunnan, China
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91
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Sevigny CM, Sengupta S, Luo Z, Jin L, Pearce D, Clarke R. Abstract P2-06-14: The role of SLC7A5 (LAT1) in endocrine therapy-resistant breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p2-06-14] [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
Endocrine therapies are commonly used to treat estrogen receptor-positive (ER+) breast cancers, which comprise 70% of all new breast cancer cases. Unfortunately, emergence of resistance to these therapies presents a major clinical challenge. Cancer cells can adapt to the dysregulation of cellular metabolism induced by endocrine therapy in order to evade cell death.Central to this adaptation is the scavenging of free-formed amino acids from the tumor microenvironment. For example, we found 109 solute carrier (SLC) mRNAs to be differentially expressed between endocrine-sensitive and resistant cells. We began our mechanistic studies of these genes with SLC family 7 member 5 (SLC7A5 or LAT1). SLC7A5 is a key component of a transmembrane transporter, which can complex with CD98 and increase the uptake of large, neutral amino acids (such as leucine or tyrosine).
We used a panel of endocrine therapy-resistant (LCC9) and sensitive (MCF7; LCC1) breast cancer cells. SLC7A5 expression was upregulated by estrogen in MCF7 and LCC1 cells; this induction was blocked by fulvestrant treatment. Basal expression of the SLC7A5 protein in the absence of estrogen was 2.75-fold higher in LCC9 cells compared with MCF7 cells; SLC7A5 mRNA expression was 71-fold higher. Fulvestrant treatment did not significantly alter SLC7A5 mRNA or protein expression in LCC9 cells. Inhibiting SLC7A5 function using either a pharmacological inhibitor (JPH203), or depleting expression using siRNA, led to significant suppression of LCC9 cell growth. Cell cycle analysis revealed that SLC7A5 depletion caused cells to accumulate in the G1-phase, with a concurrent reduction of cells in S-phase. In four publicly available datasets of ER+, tamoxifen treated breast cancer patients, high expression of SLC7A5 was significantly associated with poor relapse-free survival.
This study uncovers a novel adaptive mechanism in endocrine therapy-resistant breast cancer cells that is facilitated by increased expression of SLC7A5, which enables them to supplement their increased metabolic needs and promoting cell growth. Blocking the functions of SLC7A5, perhaps in conjunction with inhibition of autophagy, may therefore offer a new avenue of potential therapeutic intervention against endocrine therapy-resistant breast cancers.
Citation Format: Sevigny CM, Sengupta S, Luo Z, Jin L, Pearce D, Clarke R. The role of SLC7A5 (LAT1) in endocrine therapy-resistant breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P2-06-14.
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Affiliation(s)
- CM Sevigny
- Georgetown University, Washington, DC; The University of Edinburgh, Edinburgh, United Kingdom
| | - S Sengupta
- Georgetown University, Washington, DC; The University of Edinburgh, Edinburgh, United Kingdom
| | - Z Luo
- Georgetown University, Washington, DC; The University of Edinburgh, Edinburgh, United Kingdom
| | - L Jin
- Georgetown University, Washington, DC; The University of Edinburgh, Edinburgh, United Kingdom
| | - D Pearce
- Georgetown University, Washington, DC; The University of Edinburgh, Edinburgh, United Kingdom
| | - R Clarke
- Georgetown University, Washington, DC; The University of Edinburgh, Edinburgh, United Kingdom
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92
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Luo Z, Cui W. [Research progress on non-coding RNAs in the molecular pathogenesis of hepatocellular carcinoma]. Zhonghua Gan Zang Bing Za Zhi 2019; 26:797-800. [PMID: 30481892 DOI: 10.3760/cma.j.issn.1007-3418.2018.10.015] [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
Primary liver cancer arises from chronic liver disease, and cirrhotic liver gradually develops into dysplastic nodules that eventually form malignant tumors. In recent years, molecular biotechnology development has deepened people's understanding on the pathogenesis of liver cancer. Epigenetic modifications play a significant role in DNA methylation, non-coding RNAs, chromatin remodeling, and histone modification. This review focuses on the progress of currently implicated non-coding RNAs in the molecular pathogenesis of hepatocellular carcinoma, and its potential application in improving the diagnosis and treatment.
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Affiliation(s)
- Z Luo
- Department of Infectious Diseases, the First Affiliated Hospital, China Medical University, Shenyang 110000, China
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93
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Guo Q, Luo Z, Zhu L, Cai X, Xu C, Zhang J, Xu W, Xu J. Weaning-induced cell cycle arrest through up-regulation of p21 and p27 in the jejunum of piglets. S AFR J ANIM SCI 2019. [DOI: 10.4314/sajas.v48i6.13] [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: 11/17/2022]
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94
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Xie L, Liang X, Huang H, Yang L, Zhang F, Li X, Luo Z. Preparation and properties of long chain branched high-density polyethylene based on nano-SiO 2 grafted glycidyl methacrylate. RSC Adv 2019; 9:1123-1133. [PMID: 35517616 PMCID: PMC9059535 DOI: 10.1039/c8ra08061e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 12/17/2018] [Indexed: 12/28/2022] Open
Abstract
A compounded nanoparticle with multiple double bonds (C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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C) was prepared by grafting glycidyl methacrylate (GMA) onto the surface of nano-SiO2. Then gel-free long chain branched polyethylene (LCBPE) was prepared by melt branching reaction in a Haake torque rheometer in the presence of initiator peroxide and GMA grafted nano-SiO2 (SiO2-g-GMA). The sampling time corresponded to the summit of the reaction peak in the torque curve. Fourier transform infrared results indicated that SiO2-g-GMA had been grafted onto the HDPE backbone via radical reaction. The reaction mechanism and the topological structure of the PE products are also discussed. Rheological results showed that the relaxation time and molecular weight distribution of modified PE were increased owing to the introduction of LCB structure, and the more SiO2-g-GMA was added, the more apparent variation could be observed. Compared with linear HDPE, both the melt strength and mechanical properties of LCBPE were improved obviously. From the differential scanning calorimetry and polarized optical microscopy results, smaller crystal size and lower growth rate were observed compared with linear HDPE, which are ascribed to the nucleation and restriction of long branching chains in the system. Well distributed nano-SiO2 without any agglomeration in the PE matrix was observed in the scanning electron microscope images when the SiO2-g-GMA content was less than 3 phr. A compounded nanoparticle with multiple double bonds (CC) was prepared by grafting glycidyl methacrylate (GMA) onto the surface of nano-SiO2.![]()
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Affiliation(s)
- Lijin Xie
- College of Materials & Metallurgy, Guizhou University Guiyang 550025 People's Republic of China
| | - Xiaokun Liang
- College of Materials & Metallurgy, Guizhou University Guiyang 550025 People's Republic of China
| | - Hongwei Huang
- College of Materials & Metallurgy, Guizhou University Guiyang 550025 People's Republic of China
| | - Le Yang
- College of Materials & Metallurgy, Guizhou University Guiyang 550025 People's Republic of China
| | - Feng Zhang
- College of Materials & Metallurgy, Guizhou University Guiyang 550025 People's Republic of China
| | - Xiaolong Li
- College of Materials & Metallurgy, Guizhou University Guiyang 550025 People's Republic of China
| | - Zhu Luo
- College of Materials & Metallurgy, Guizhou University Guiyang 550025 People's Republic of China
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95
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Xiong J, Luo Z, Yang J, Guo Y, Piyadasa A, Wang S, Hoang S, Fang Y, Hu S, Yang W, Deng H, Zhang L, Gao PX. Robust and well-controlled TiO 2–Al 2O 3 binary nanoarray-integrated ceramic honeycomb for efficient propane combustion. CrystEngComm 2019. [DOI: 10.1039/c8ce02012d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Well-tuned TiO2–Al2O3 binary nanoarrays had been fabricated onto ceramic honeycombs and exhibited excellent robustness and catalytic activity for propane oxidation.
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96
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Yang J, Yao HH, Mo XD, Luo Z, Baima Y. [Clinical and immunological characteristics of patients with systemic lupus erythematosus in Tibet plateau, China]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:1004-1008. [PMID: 30562772] [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: 06/09/2023]
Abstract
OBJECTIVE To describe the clinical, immunological characteristics and organ involvement of patients with systemic lupus erythematosus (SLE) in Tibet plateau, China. METHODS We retrospectively investigated 70 patients admitted in the Tibet Autonomous Region People's Hospital between May 2014 and April 2016. In the study, 120 hospitalized patients with SLE from the Department of Rheumatology and Immunology of the Peking University People's Hospital were randomly selected as the control (plain) group. The major organ involvement, clinical and immunological characteristics were compared between the two groups. RESULTS The female to male ratio of Tibet plateau group was 10.7, while the corresponding ratio of plain group was 11.0. The mean age at disease diagnosis was (32.21±11.40) and (35.38±13.25) years, respectively. the most common initial manifestations of SLE were arthritis (78.6%), alopecia (55.7%) and malar rash (48.6%) in Tibet plateau group, the prevalence of arthritis and alopecia was significantly higher than in plain group (P<0.05). The incidence of neuropsychiatric and kidney involvement was significantly lower in Tibet plateau group compared with plain group (P<0.05). As for the serological manifestations, the positivity of anti-double-stranded DNA (dsDNA) (57.1%), anti-Smith (Sm) antibody (55.7%), anti-Sjögren syndrome A (SSA) antibody (72.3%), anti-Sjögren syndrome B (SSB) antibody (41.4%) and anti-u1-ribosenuclear protein (u1RNP) antibody (45.7%) was significantly higher in Tibet plateau group (P<0.05). While the incidence of low serum complement C3 (61.4%), C4 (38.6%) less frequent in Tibet plateau group. Mean SLE disease activity index (SLEDAI) score was similar in the Tibet plateau group (12.18±5.58) and plain group (12.69±7.28). Moreover, there were 13 (18.6%) SLE patients suffering from tuberculosis and 7 (10%) SLE patients infected with hepatitis B virus in Tibet plateau group. The number of recent-onset SLE patients with lower 25-dihydroxy-vitamin D3 (25-OH-VD3) in Tibet plateau group was fewer than that in the plain group (76.7% vs. 90.0%, P=0.046). Serum 25-OH-VD3 levels in Tibet plateau plateau group were (31.14±18.74) nmol/L, those in plain group were (26.91±14.27) nmol/L, and the difference was not significant. CONCLUSION The age, gender and SLEDAI scores in Tibet plateau group was similar to those in plain group. But there are significant differences in clinical manifestations, distributions of antibodies and immunological changes between Tibet plateau group and plain group. The patients with lower serum 25-OH-VD3 levels were more in plain group than in Tibet plateau group, while there was no significant difference in the 25-OH-VD3 level between the two groups.
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Affiliation(s)
- J Yang
- Department of Rheumatology and Immunology, Tibet Autonomous Region People's Hospital, Lhasa 850000, China
| | - H H Yao
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - X D Mo
- Department of Hemotology, Peking University People's Hospital, Beijing 100044, China
| | - Z Luo
- Department of Rheumatology and Immunology, Tibet Autonomous Region People's Hospital, Lhasa 850000, China
| | - Yangjin Baima
- Department of Rheumatology and Immunology, Tibet Autonomous Region People's Hospital, Lhasa 850000, China
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97
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Yang L, Yang Z, Zhang F, Xie L, Luo Z, Zheng Q. Star Shaped Long Chain Branched Poly (lactic acid) Prepared by Melt Transesterification with Trimethylolpropane Triacrylate and Nano-ZnO. Polymers (Basel) 2018; 10:polym10070796. [PMID: 30960721 PMCID: PMC6403968 DOI: 10.3390/polym10070796] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 05/30/2018] [Revised: 07/16/2018] [Accepted: 07/17/2018] [Indexed: 11/30/2022] Open
Abstract
Long chain branched poly (lactic acid) (LCBPLA) was prepared via transesterification between high molecular weight poly (lactic acid) (PLA) and low molar mass monomer trimethylolpropane triacrylate (TMPTA) during melt blending in the presence of zinc oxide nanoparticles (nano-ZnO) as a transesterification accelerant in a torque rheometer. Compared with the traditional processing methods, this novel way is high-efficiency, environmentally friendly, and gel-free. The results revealed that chain restructuring reactions occurred and TMPTA was grafted onto the PLA backbone. The topological structures of LCBPLA were verified and investigated in detail. It was found that the concentration of the accelerants and the sampling occasion had very important roles in the occurrence of branching structures. When the nano-ZnO dosage was 0.4 phr and PLA was sampled at the time corresponding to the reaction peak in the torque curve, PLA exhibited a star-shaped topological structure with a high branching degree which could obviously affect the melt strength, extrusion foaming performances, and crystallization behaviors. Compared with pristine PLA, LCBPLA showed a higher melt strength, smaller cell diameter, and slower crystallization speed owing to the synergistic effects of nano-ZnO and the long chain branches introduced by the transesterification reaction in the system. However, severe degradation of the LCBPLAs would take place under a mixing time that was too long and lots of short linear chains generated due to the excessive transesterification reaction, with a sharp decline in melt strength.
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Affiliation(s)
- Le Yang
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China.
| | - Zaijun Yang
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China.
| | - Feng Zhang
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China.
| | - Lijin Xie
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China.
| | - Zhu Luo
- Department of Polymer Materials and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China.
| | - Qiang Zheng
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
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98
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Hu S, Xiao W, Yang W, Yang J, Fang Y, Xiong J, Luo Z, Deng H, Guo Y, Zhang L, Ding J. Molecular O 2 Activation over Cu(I)-Mediated C≡N Bond for Low-Temperature CO Oxidation. ACS Appl Mater Interfaces 2018; 10:17167-17174. [PMID: 29682956 DOI: 10.1021/acsami.8b02367] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The activation of molecular oxygen (O2) is extremely crucial in heterogeneous oxidations for various industrial applications. Here, a charge-transfer complex CuTCNQ nanowire (CuTCNQ NW) array grown on the copper foam was first reported to show CO catalytic oxidation activity at a temperature below 200 °C with the activated O2 as an oxidant. The molecular O2 was energetically activated over the Cu(I)-mediated C≡N bond with a lower energy of -1.167 eV and preferentially reduced to •O2- through one-electron transfer during the activation process by density functional theory calculations and electron paramagnetic resonance. The theoretical calculations indicated that the CO molecule was oxidized by the activated O2 on the CuTCNQ NW surface via the Eley-Rideal mechanism, which had been further confirmed by in situ diffuse reflectance infrared Fourier transform spectra. These results indicated that the local C≡N bond electron-state engineering could effectively improve the molecular O2 activation efficiency, which facilitates the low-temperature CO catalytic oxidation. The findings reported here enhance our understanding on the molecular oxygen activation pathway over metal-organic nanocatalysts and provide a new avenue for rational design of novel low-cost, organic-based heterogeneous catalysts.
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Affiliation(s)
- Siyu Hu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Wen Xiao
- Department of Materials Science and Engineering , National University of Singapore , 117575 , Singapore
| | - Weiwei Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Ji Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Yarong Fang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Juxia Xiong
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Zhu Luo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Hongtao Deng
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Yanbing Guo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Lizhi Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental and Applied Chemistry, College of Chemistry , Central China Normal University , Wuhan 430079 , P. R. China
| | - Jun Ding
- Department of Materials Science and Engineering , National University of Singapore , 117575 , Singapore
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99
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Yang L, Jiang T, Gong W, He L, Luo Z, Zhang C. Influence of polypropylene topological structure evolution during melt branching reactive processing on its melt performances. POLYM ADVAN TECHNOL 2018. [DOI: 10.1002/pat.4341] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Le Yang
- College of Materials and Metallurgy; Guizhou University; Guiyang 550025 People's Republic of China
| | - Tuanhui Jiang
- National Engineering Research Center for Compounding and Modification of Polymer Materials; Guiyang 550014 People's Republic of China
| | - Wei Gong
- National Engineering Research Center for Compounding and Modification of Polymer Materials; Guiyang 550014 People's Republic of China
| | - Li He
- College of Materials and Metallurgy; Guizhou University; Guiyang 550025 People's Republic of China
- National Engineering Research Center for Compounding and Modification of Polymer Materials; Guiyang 550014 People's Republic of China
| | - Zhu Luo
- College of Materials and Metallurgy; Guizhou University; Guiyang 550025 People's Republic of China
| | - Chun Zhang
- School of Materials and Metallurgical Engineering; Guizhou Institute of Technology; Guiyang 550003 People's Republic of China
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100
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Chevrier DM, Thanthirige VD, Luo Z, Driscoll S, Cho P, MacDonald MA, Yao Q, Guda R, Xie J, Johnson ER, Chatt A, Zheng N, Zhang P. Structure and formation of highly luminescent protein-stabilized gold clusters. Chem Sci 2018; 9:2782-2790. [PMID: 29732064 PMCID: PMC5914291 DOI: 10.1039/c7sc05086k] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 02/05/2018] [Indexed: 01/31/2023] Open
Abstract
Highly luminescent gold clusters simultaneously synthesized and stabilized by protein molecules represent a remarkable category of nanoscale materials with promising applications in bionanotechnology as sensors. Nevertheless, the atomic structure and luminescence mechanism of these gold clusters are still unknown after several years of developments. Herein, we report findings on the structure, luminescence and biomolecular self-assembly of gold clusters stabilized by the large globular protein, bovine serum albumin. We highlight the surprising identification of interlocked gold-thiolate rings as the main gold structural unit. Importantly, such gold clusters are in a rigidified state within the protein scaffold, offering an explanation for their highly luminescent character. Combined free-standing cluster synthesis (without protecting protein scaffold) with rigidifying and un-rigidifying experiments, were designed to further verify the luminescence mechanism and gold atomic structure within the protein. Finally, the biomolecular self-assembly process of the protein-stabilized gold clusters was elucidated by time-dependent X-ray absorption spectroscopy measurements and density functional theory calculations.
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Affiliation(s)
- D M Chevrier
- Department of Chemistry , Dalhousie University , 6274 Coburg Road , Halifax , NS B3H4J3 , Canada .
| | - V D Thanthirige
- Department of Chemistry , Western Michigan University , Kalamazoo , MI49008 , USA
| | - Z Luo
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 119260 , Singapore
| | - S Driscoll
- Department of Chemistry , Dalhousie University , 6274 Coburg Road , Halifax , NS B3H4J3 , Canada .
| | - P Cho
- Department of Chemistry , Dalhousie University , 6274 Coburg Road , Halifax , NS B3H4J3 , Canada .
| | - M A MacDonald
- Department of Chemistry , Dalhousie University , 6274 Coburg Road , Halifax , NS B3H4J3 , Canada .
| | - Q Yao
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 119260 , Singapore
| | - R Guda
- Department of Chemistry , Western Michigan University , Kalamazoo , MI49008 , USA
| | - J Xie
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 119260 , Singapore
| | - E R Johnson
- Department of Chemistry , Dalhousie University , 6274 Coburg Road , Halifax , NS B3H4J3 , Canada .
| | - A Chatt
- Department of Chemistry , Dalhousie University , 6274 Coburg Road , Halifax , NS B3H4J3 , Canada .
| | - N Zheng
- State Key Laboratory for Physical Chemistry of Solid Surfaces , Collaborative Innovation Center of Chemistry for Energy Materials , Engineering Research Center for Nano-Preparation Technology of Fujian Province , National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters , College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , China
| | - P Zhang
- Department of Chemistry , Dalhousie University , 6274 Coburg Road , Halifax , NS B3H4J3 , Canada .
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