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Liu Y, Li Z, Gao Y, Wang C, Wang X, Wang X, Xue X, Wang K, Cui W, Gao F, He S, Wu Z, Qi F, Gan J, Wang Y, Zheng W, Yang Y, Chen J, Pan H. Recent Advances in Understanding of the Singlet Oxygen in Energy Storage and Conversion. Small 2024:e2311500. [PMID: 38372501 DOI: 10.1002/smll.202311500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/17/2024] [Indexed: 02/20/2024]
Abstract
Singlet oxygen (term symbol 1 Δg , hereafter 1 O2 ), a reactive oxygen species, has recently attracted increasing interest in the field of rechargeable batteries and electrocatalysis and photocatalysis. These sustainable energy conversion and storage technologies are of vital significance to replace fossil fuels and promote carbon neutrality and finally tackle the energy crisis and climate change. Herein, the recent progresses of 1 O2 for energy storage and conversion is summarized, including physical and chemical properties, formation mechanisms, detection technologies, side reactions in rechargeable batteries and corresponding inhibition strategies, and applications in electrocatalysis and photocatalysis. The formation mechanisms and inhibition strategies of 1 O2 in particular aprotic lithium-oxygen (Li-O2 ) batteries are highlighted, and the applications of 1 O2 in photocatalysis and electrocatalysis is also emphasized. Moreover, the confronting challenges and promising directions of 1 O2 in energy conversion and storage systems are discussed.
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Affiliation(s)
- Yanxia Liu
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Zhenglong Li
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Yong Gao
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Chenxing Wang
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Xinqiang Wang
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Xin Wang
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Xu Xue
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Ke Wang
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Wengang Cui
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Fan Gao
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Shengnan He
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Zhijun Wu
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Fulai Qi
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Jiantuo Gan
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Yujing Wang
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Wenjun Zheng
- Department of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (MOE), TKL of Metal and Molecule-based Material Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yaxiong Yang
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Jian Chen
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Hongge Pan
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
- State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
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Gao Y, Li Z, Wang P, Cui WG, Wang X, Yang Y, Gao F, Zhang M, Gan J, Li C, Liu Y, Wang X, Qi F, Zhang J, Han X, Du W, Chen J, Xia Z, Pan H. Experimentally validated design principles of heteroatom-doped-graphene-supported calcium single-atom materials for non-dissociative chemisorption solid-state hydrogen storage. Nat Commun 2024; 15:928. [PMID: 38296957 PMCID: PMC10830568 DOI: 10.1038/s41467-024-45082-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 01/11/2024] [Indexed: 02/02/2024] Open
Abstract
Non-dissociative chemisorption solid-state storage of hydrogen molecules in host materials is promising to achieve both high hydrogen capacity and uptake rate, but there is the lack of non-dissociative hydrogen storage theories that can guide the rational design of the materials. Herein, we establish generalized design principle to design such materials via the first-principles calculations, theoretical analysis and focused experimental verifications of a series of heteroatom-doped-graphene-supported Ca single-atom carbon nanomaterials as efficient non-dissociative solid-state hydrogen storage materials. An intrinsic descriptor has been proposed to correlate the inherent properties of dopants with the hydrogen storage capability of the carbon-based host materials. The generalized design principle and the intrinsic descriptor have the predictive ability to screen out the best dual-doped-graphene-supported Ca single-atom hydrogen storage materials. The dual-doped materials have much higher hydrogen storage capability than the sole-doped ones, and exceed the current best carbon-based hydrogen storage materials.
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Affiliation(s)
- Yong Gao
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Zhenglong Li
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Pan Wang
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Wen-Gang Cui
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Xiaowei Wang
- Department of Materials Science and Engineering, University of North Texas, Denton, TX, 76203, USA
| | - Yaxiong Yang
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Fan Gao
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Mingchang Zhang
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Jiantuo Gan
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Chenchen Li
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Yanxia Liu
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Xinqiang Wang
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Fulai Qi
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China
| | - Jing Zhang
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Xiao Han
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Wubin Du
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, PR China
| | - Jian Chen
- School of Materials Science and Chemical Engineering, Xi'an Technological University, Xi'an, 710021, China.
| | - Zhenhai Xia
- Australian Carbon Materials Centre, School of Chemical Engineering, University of New South Wales, Sydney, NSW, 2052, Australia.
| | - Hongge Pan
- Institute of Science and Technology for New Energy Xi'an Technological University, Xi'an, 710021, China.
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Quan Z, Wang F, Wang Y, Liu Z, Zhang C, Qi F, Zhang M, Ye C, Tan J, Liu J. Robust Micro-Sized and Defect-Rich Carbon-Carbon Composites as Advanced Anodes for Potassium-Ion Batteries. Small 2024; 20:e2305841. [PMID: 37712105 DOI: 10.1002/smll.202305841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/03/2023] [Indexed: 09/16/2023]
Abstract
Pitch-derived carbon (PC) anode features the merits of low-cost, rich edge-defect sites, and tunable crystallization degree for potassium ion batteries (PIBs). However, gaining the PC anode with both rich edge-defect sites and robust structure remains challenging. Herein, micro-sized and robust PC/expanded-graphite (EG) composites (EGC) with rich edge-defect sites are massively synthesized via melting impregnation and confined pyrolysis. The PC is in situ encapsulated in micro-sized EG skeleton with robust chemical bonds between PC and EG after thermal treatment, endowing the structural stability as micro-sized carbon-carbon composites. The confinement effect originating from EG skeleton could suppress the crystallization degree of the PC and contribute rich edge-defect sites in EGC composites. Additionally, the EG skeleton inside EGC could form continuous electronic conduction nets and establish low-tortuosity carbonaceous electrodes, facilitating rapid electron/ion migration. While applied in PIBs, the EGC anode delivers a reversible capacity that up to 338.5 mAh g-1 at 0.1 A g-1 , superior rate performance of 127.5 mAh g-1 at 5.0 A g-1 , and long-term stability with 204.8 mAh g-1 retain after 700 cycles at 1.0 A g-1 . This novel strategy highlights an interesting category of heterogeneous carbon-carbon composite materials to keep pace with the demand for the future PIBs industry.
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Affiliation(s)
- Zhuohua Quan
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
- Ji Hua Laboratory, Foshan, Guangdong, 528000, China
| | - Fei Wang
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
- Ji Hua Laboratory, Foshan, Guangdong, 528000, China
| | - Yuchen Wang
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
- Ji Hua Laboratory, Foshan, Guangdong, 528000, China
| | - Zhendong Liu
- Ji Hua Laboratory, Foshan, Guangdong, 528000, China
| | | | - Fulai Qi
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, China
| | - Mingchang Zhang
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, China
| | - Chong Ye
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
| | - Jun Tan
- Ji Hua Laboratory, Foshan, Guangdong, 528000, China
| | - Jinshui Liu
- Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology, College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
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Zhao M, Qin W, Zhang S, Qi F, Li X, Lan X. Assessing the construction of a Healthy City in China: a conceptual framework and evaluation index system. Public Health 2023; 220:88-95. [PMID: 37285608 DOI: 10.1016/j.puhe.2023.04.020] [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: 12/07/2022] [Revised: 04/05/2023] [Accepted: 04/21/2023] [Indexed: 06/09/2023]
Abstract
OBJECTIVES COVID-19 has brought challenges to the health of all mankind. It is particularly important to promote the construction of a 'Healthy China' and build a 'healthy community'. The aims of this study were to construct a reasonable conceptual framework for the Healthy City concept and to assess Healthy City construction in China. STUDY DESIGN This study combined qualitative and quantitative research. METHODS This study proposes the concept model of 'nature-human body-Healthy City' and accordingly constructs an evaluation index system for the construction of a Healthy City that integrates five dimensions, namely, the medical level, economic basis, cultural development, social services, and ecological environment to explore the spatial and temporal heterogeneity of Healthy City construction in China. Finally, the influencing factors of Healthy City construction patterns are explored using GeoDetector. RESULTS (1) The pace of Healthy City construction is generally on the rise; (2) the construction of Healthy Cities exhibits significant global spatial autocorrelation and gradually increasing agglomeration. The spatial distribution of cold hotspot areas was relatively stable; (3) medical and health progress is an important factor; the level of economic development is the leading support; the endowment of resources and environment is the basic condition; public service support provides important support; and scientific and technological innovation capabilities provide technical support for the construction of a Healthy City. CONCLUSIONS The spatial heterogeneity of Healthy City construction in China is evident, and the state of spatial distribution is relatively stable. The spatial pattern of Healthy City construction is shaped by a combination of factors. Our research will provide a scientific basis for promoting the construction of Healthy Cities and helping to implement the Health China Strategy.
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Affiliation(s)
- M Zhao
- School of Resources and Environmental Engineering, Ludong University, Yantai, 264025, PR China
| | - W Qin
- School of Resources and Environmental Engineering, Ludong University, Yantai, 264025, PR China.
| | - S Zhang
- School of Resources and Environmental Engineering, Ludong University, Yantai, 264025, PR China
| | - F Qi
- School of Resources and Environmental Engineering, Ludong University, Yantai, 264025, PR China
| | - X Li
- School of Resources and Environmental Engineering, Ludong University, Yantai, 264025, PR China
| | - X Lan
- School of Resources and Environmental Engineering, Ludong University, Yantai, 264025, PR China
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Yu H, Liu W, Mi L, Shu S, Zhang W, Ying Z, Chen H, Yan X, Shen W, Tu G, Ye Y, Li M, Wang D, Hu D, Cao J, Qi F, Wang X, Song Y, Zhu J. THE CD19/CD3 BISPECIFIC ANTIBODY WORK EFFECTIVELY AS ADJUNCT WITH IBRUTINIB ON THE TREATMENT OF B‐CELL LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.77_2881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- H. Yu
- Beijing Cancer Hospital Lymphoma Beijing China
| | - W. Liu
- Beijing Cancer Hospital Lymphoma Beijing China
| | - L. Mi
- Beijing Cancer Hospital Lymphoma Beijing China
| | - S. Shu
- Beijing Cancer Hospital Lymphoma Beijing China
| | - W. Zhang
- Beijing Cancer Hospital Molecular Oncology Laboratory Beijing China
| | - Z. Ying
- Beijing Cancer Hospital Lymphoma Beijing China
| | - H. Chen
- ITabMed Ltd Preclinical Research Shanghai China
| | - X. Yan
- ITabMed Ltd Preclinical Research Shanghai China
| | - W. Shen
- ITabMed Ltd Preclinical Research Shanghai China
| | - G. Tu
- ITabMed Ltd Preclinical Research Shanghai China
| | - Y. Ye
- Beijing Cancer Hospital Lymphoma Beijing China
| | - M. Li
- Beijing Cancer Hospital Lymphoma Beijing China
| | - D. Wang
- Beijing Cancer Hospital Lymphoma Beijing China
| | - D. Hu
- Beijing Cancer Hospital Lymphoma Beijing China
| | - J. Cao
- Beijing Cancer Hospital Lymphoma Beijing China
| | - F. Qi
- Beijing Cancer Hospital Lymphoma Beijing China
| | - X. Wang
- Beijing Cancer Hospital Lymphoma Beijing China
| | - Y. Song
- Beijing Cancer Hospital Lymphoma Beijing China
| | - J. Zhu
- Beijing Cancer Hospital Lymphoma Beijing China
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6
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Hao Y, Yang QX, Wang Q, Xu GC, Qi F, Deng CL, Wei ZR, Wang DL. [Research on feasibility of in vitro inflammatory wound microenvironment simulated by using inflammatory wound tissue homogenate of mice]. Zhonghua Shao Shang Za Zhi 2020; 36:1024-1034. [PMID: 33238685 DOI: 10.3760/cma.j.cn501120-20200720-00351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the feasibility of in vitro inflammatory wound microenvironment simulated by using inflammatory wound tissue homogenate of mice. Methods: (1) Ten eight-week-old C57BL/6 male mice were collected and full-thickness skin tissue with diameter of 1.0 cm on both sides of the midline of the back was taken with a perforator to make the normal skin tissue homogenate supernatant. At 48 h after the full-thickness skin defect wound was established, the wound tissue within 2 mm from the wound edge was taken to make inflammatory wound tissue homogenate supernatant. Two kinds of tissue homogenate supernatant were taken to adjust the total protein concentration to 1 mg/mL, and the tumor necrosis factor α (TNF-α) content was detected by enzyme-linked immunosorbent assay. The number of sample was 6. (2) The primary passage of human umbilical cord mesenchymal stem cells (hUCMSCs) were collected and cultured to the 3rd passage with the normal exosomes being extracted from the hUCMSCs after cultured for 48 h. Another batch of hUCMSCs in the 3rd passage was collected and stimulated with inflammatory wound tissue homogenate supernatant of 30, 50, and 100 μg/mL total protein and normal skin tissue homogenate supernatant of 30, 50, and 100 μg/mL total protein, respectively. After cultured for 48 h, the exosomes stimulated with normal protein of 30, 50, and 100 μg/mL and exosomes stimulated with inflammatory protein of 30, 50, and 100 μg/mL were extracted. Normal exosomes, exosomes stimulated with 30 μg/mL normal protein, and exosomes stimulated with 30 μg/mL inflammatory protein were collected, the morphology was observed by transmission electron microscope, the particle size was detected by nanoparticle tracking analyzer, and the expressions of CD9 and CD63 were detected by Western blotting. (3) Twenty one-day-old C57BL/6 mice were taken to isolate the primary passage of fibroblasts (Fbs) and the 3rd passage of Fbs, whose morphology was observed under the inverted phase contrast microscope. The Fbs of 3rd passage were collected to observe the expression of vimentin by cell crawling method combined with immunofluorescence method at culture hour (CH) 2. (4) The Fbs of 3rd passage were divided into control group, normal exosome group, 30, 50, 100 μg/mL normal protein stimulating exosome group, and 30, 50, 100 μg/mL inflammatory protein stimulating exosome group according to the random number table, with 4 wells in each group. Cells in control group received no treatment, and cells in the other 7 groups were respectively added with normal exosomes, exosomes stimulated with normal protein of 30, 50, and 100 μg/mL, and exosomes stimulated with inflammatory protein of 30, 50, and 100 μg/mL prepared in experiment (2). The final mass concentration of exosomes was adjusted to 10 μg/mL. The cell viability was detected by cell count kit 8 at CH 48. (5) Two batches of Fbs in the 3rd passage were divided and treated as those in experiment (4), with 4 wells in each group, and the final mass concentration of exosomes was adjusted to 1 and 10 μg/mL, respectively. The cell mobility was detected by cell scratch test at CH 6, 12, and 24. (6) Two batches of the Fbs of 3rd passage were collected, divided, and treated as those in experiment (4) except with no control group, with 3 wells in each group, and the final mass concentration of exosomes was respectively adjusted to 1 and 10 μg/mL. The mRNA expression levels of transforming growth factor β(1) (TGF-β(1)), TGF-β(3), and α smooth muscle actin (α-SMA) were detected by real-time fluorescent quantitative reverse transcription polymerase chain reaction at CH 48. Data were statistically analyzed with analysis of variance for repeated measurement, one-way analysis of variance, and Bonferroni method. Results: (1) The content of TNF-α in inflammatory wound tissue homogenate supernatant of mice was (116±3) pg/mL, significantly higher than (97±5) pg/mL in normal skin tissue homogenate supernatant at post injury hour 48 (t=3.306, P<0.05). (2) Normal exosomes, exosomes stimulated with 30 μg/mL normal protein, and exosomes stimulated with 30 μg/mL inflammatory protein of hUCMSCs showed the typical saucer-like shape. The particle sizes of the three exosomes of hUCMSCs were 30-150 nm, which were all within the normal particle size range of exosome. Three exosomes of hUCMSCs positively expressed CD9 and CD63. (3) The primary passage of cells were clearly defined and showed protruding spindle shape, irregular polygon shape, or slender strip shape. The morphology of the 3rd and the primary passage of cells is similar. At CH 2, vimentin in cells was positively expressed, and the cells were identified as Fbs. (4) At CH 48, the cell viability was (137.4±2.8)% in 30 μg/mL inflammatory protein stimulating exosome group, obviously higher than 100%, (107.5±2.4)%, (113.3±3.2)%, (104.0±2.0)%, and (101.9±1.5)% in control group, normal exosome group, 30 μg/mL normal protein stimulating exosome group, and 50 and 100 μg/mL inflammatory protein stimulating exosome groups, respectively (P<0.01), and cell viability in 30 μg/mL normal protein stimulating exosome group was obviously higher than that in control group, normal exosome group, and 50 and 100 μg/mL normal protein stimulating exosome groups [(103.4±2.2)% and (102.5±1.4)%], respectively (P<0.01). (5) At CH 6, 12, and 24, the mobility rate of cells in 30 μg/mL inflammatory protein stimulating exosome group was significantly higher than that in control group, normal exosome group, 30 μg/mL normal protein stimulating exosome group, and 50 and 100 μg/mL inflammatory protein stimulating exosome groups, respectively, when the final mass concentrations of exosome was 1 μg/mL (P<0.05) . At CH 12, the mobility rate of cells in 30 μg/mL normal protein stimulating exosome group was obviously higher than that in control group, normal exosome group, and 50 and 100 μg/mL normal protein stimulating exosome groups, respectively, when the final mass concentration of exosome was 1 μg/mL (P<0.05). At CH 6, the mobility rate of cells in 30 μg/mL inflammatory protein stimulating exosome group was significantly higher than that in control group and normal exosome group (P<0.05), and the mobility rate of cells in 30 μg/mL normal protein stimulating exosome group was significantly higher than that in 50 and 100 μg/mL normal protein stimulating exosome groups, respectively, when the final mass concentration of exosome was 10 μg/mL (P<0.05). At CH 12 and 24, the mobility rate of cells in 30 μg/mL inflammatory protein stimulating exosome group was significantly higher than that in control group, normal exosome group, and 50 and 100 μg/mL inflammatory protein stimulating exosome groups (P<0.05), and the mobility rate of cells in 30 μg/mL normal protein stimulating exosome group was significantly higher than that in control group, normal exosome group, and 50 and 100 μg/mL normal protein stimulating exosome groups, respectively, when the final mass concentration of exosome was 10 μg/mL (P<0.05). (6) There were no statistically significant differences in mRNA expression levels of TGF-β(1), TGF-β(3), and α-SMA of cells among the 7 groups at CH 48 when the final mass concentration of exosome was 1 μg/mL (F=1.123, 1.537, 1.653, P>0.05). There were no statistically significant differences in mRNA expression levels of TGF-β(1) and α-SMA of cells among the 7 groups at CH 48 when the final mass concentration of exosome was 10 μg/mL (F=1.487, 1.308, P>0.05), and mRNA expression level of TGF-β(3) of cells in 50 μg/mL inflammatory protein stimulating exosome group at CH 48 was significantly higher than that in normal exosome group, 50 μg/mL normal protein stimulating exosome group, and 30 and 100 μg/mL inflammatory protein stimulating exosome groups when the final mass concentration of exosome was 10 μg/mL (P<0.05). Conclusions: The pretreatment with inflammatory wound tissue homogenate supernatant of mice has no significant effect on the total protein of hUCMSCs exosomes. The hUCMSCs exosomes stimulated by low concentration inflammatory wound tissue homogenate supernatant can significantly promote the proliferation and migration ability of Fbs. The content of inflammatory mediators in the wound tissue homogenate supernatant during the inflammatory phase is extremely low, which may be the reason that the anti-inflammation and tissue repair paracrine effects of mesenchymal stem cell cannot be effectively started.
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Affiliation(s)
- Y Hao
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China
| | - Q X Yang
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China
| | - Q Wang
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China
| | - G C Xu
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China
| | - F Qi
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China
| | - C L Deng
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China
| | - Z R Wei
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China
| | - D L Wang
- Department of Burns and Plastic Surgery, the Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China
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7
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Xu YH, Chen MF, Lv XP, Yu C, Qi F, Wang HQ. [Analysis on the situation of being supported by the national natural science foundation of China in the field of occupational diseases from 2010 to 2019]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:125-128. [PMID: 32306676 DOI: 10.3760/cma.j.issn.1001-9391.2020.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the situation supported by the National Natural Science Foundation in the field of occupational diseases (H2402) in China, so as to provide a reference basis for the application and research of scientific researchers in the field of occupational diseases in China. Methods: The information system of scientific and technological achievements was used to search the financial support of the National Natural Science Foundation of China (NSFC) in the field of occupational diseases from 2010 to 2019. Results: From 2010 to 2019, a total of 55 projects were funded under the Occupational Disease code (H2402) , with a total funding of 22.33 million yuan, of which 30 were supported by the Youth Science Foundation, 20 by the Youth Science Foundation and 5 by the Regional Science Foundation. Thirty five items of the research projects focused on pneumoconiosis and other respiratory diseases which accounted for 63.64 per cent. Forty one items of scientific research projects are supported by domestic institutions of higher learning which accounted for 74.55 per cent. Conclusion: The research support of the National Natural Science Foundation of China to the field of occupational diseases (H2402) has increased steadily, but the support of different research directions and supporting units is not balanced. It is suggested that departments concerned strengthen guidance and support for the applicants in less developed areas and weak research directions of the projects in the National Natural Science Foundation.
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Affiliation(s)
- Y H Xu
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention 100050 Beijing, China; School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences. Jinan 250062, China; Shandong First Medical University & Shandong Academy of Medical Sciences. Jinan 250062, China
| | - M F Chen
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention 100050 Beijing, China
| | - X P Lv
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention 100050 Beijing, China
| | - C Yu
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention 100050 Beijing, China
| | - F Qi
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention 100050 Beijing, China
| | - H Q Wang
- National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention 100050 Beijing, China
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Qi F, Jiang X, Tong T, Chang H, Li RX. MiR-204 inhibits inflammation and cell apoptosis in retinopathy rats with diabetic retinopathy by regulating Bcl-2 and SIRT1 expressions. Eur Rev Med Pharmacol Sci 2020; 24:6486-6493. [PMID: 32633335 DOI: 10.26355/eurrev_202006_21631] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the influences of micro ribonucleic acid (miR)-204 on the rats with diabetic retinopathy by regulating the expressions of B-cell lymphoma 2 (Bcl-2) and sirtuin 1 (SIRT1). MATERIALS AND METHODS A total of 36 Sprague-Dawley rats were randomly assigned into normal group (n=12), model group (n=12), and miR-204 mimics group (n=12). No treatment was performed in the normal group, the diabetic retinopathy model was established in model group, and miR-204 mimics were administered for intervention after modeling in the inhibitor group. After 7 d, materials were sampled for detection. The expressions of Bcl-2 and SIRT1 were detected via immunohistochemistry, and their relative protein expression levels were determined via Western blotting (WB). Quantitative Polymerase Chain Reaction (qPCR) was performed to detect the expression of miR-204, and the content of inflammatory factors interleukin (IL)-6, IL-18, and tumor necrosis factor-α (TNF-α) was measured using enzyme-linked immunosorbent assay (ELISA). Finally, cell apoptosis was evaluated via terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL). RESULTS Immunohistochemistry results showed that the positive expression levels of Bcl-2 and SIRT1 were substantially lower in the model and miR-204 mimics groups than those in the normal group (p<0.05), and their positive expression levels in miR-204 mimics group were notably higher than those in model group (p<0.05). According to Western blot (WB) results, the relative protein expression levels of Bcl-2 and SIRT1 markedly declined in the other two groups compared with those in the normal group (p<0.05), while miR-204 mimics group exhibited remarkably higher relative protein expression levels of Bcl-2 and SIRT1 than the model group (p<0.05). The results of qPCR revealed that the relative expression level of miR-204 was markedly lowered in model and miR-204 mimics groups compared with that in the normal group (p<0.05), and its relative expression level in miR-204 mimics group was remarkably higher than that in the model group. It was found through enzyme-linked immunosorbent assay (ELISA) that compared with normal group, the other two groups had substantially increased content of IL-6, IL-18, and TNF-α (p<0.05), and the content of IL-6, IL-18, and TNF-α in miR-204 mimics group was markedly lower than that in the model group (p<0.05). According to TUNEL results, the apoptosis rate of cells rose substantially in the other two groups compared with that in the normal group (p<0.05), while was notably lower in the miR-204 mimics group than that in the model group (p<0.05). CONCLUSIONS MiR-204 up-regulates Bcl-2 and SIRT1 expressions to inhibit the inflammation and cell apoptosis in rats with diabetic retinopathy.
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Affiliation(s)
- F Qi
- Department of Ophthalmology, Liaoning University of Traditional Chinese Medicine, Shenyang, China.
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Xiang L, Qi F, Jiang L, Tan J, Deng C, Wei Z, Jin S, Huang G. CRISPR-dCas9-mediated knockdown of prtR, an essential gene in Pseudomonas aeruginosa. Lett Appl Microbiol 2020; 71:386-393. [PMID: 32506497 DOI: 10.1111/lam.13337] [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: 02/23/2020] [Revised: 05/19/2020] [Accepted: 05/27/2020] [Indexed: 12/21/2022]
Abstract
Pseudomonas aeruginosa is a widely distributed non-fermentative Gram-negative opportunistic pathogen that is often responsible for nosocomial infections. Gene interference is a potentially valuable tool for investigating essential genes in P. aeruginosa. To establish a gene interference platform in P. aeruginosa, CRISPR system was used with an inactive Cas9 protein. The CRISPR-dCas9 system was cloned into pHERD20T, a shuttle vector with arabinose inducible promoter, and was further modified to target a regulatory gene prtR that is essential for the viability of P. aeruginosa. Cells expressing the prtR-targeting CRISPR interference (CRISPRi) showed growth defect in an arabinose dose-dependent manner. A high-throughput RNA sequencing analysis of bacterial cells with or without the CRISPRi-mediated prtR inhibition indicated that prtRis a global regulator affecting multiple biological processes. In conclusion, the CRISPR-dCas9-based gene knockdown system has been successfully implemented in P. aeruginosa and demonstrated to be an effective tool in the investigation of essential or difficult-to-inactivate genes in this species.
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Affiliation(s)
- L Xiang
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - F Qi
- Department of Plastic and Burn Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - L Jiang
- Department of Plastic and Burn Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - J Tan
- Department of Plastic and Burn Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - C Deng
- Department of Plastic and Burn Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Z Wei
- Department of Plastic and Burn Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - S Jin
- Department of Molecular Genetics and Microbiology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - G Huang
- Department of Plastic and Burn Surgery, The Affiliated Hospital of Zunyi Medical University, Zunyi, China
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Sun X, Li Y, Qi F, Jing F, Sun H, Sun G. Degradation Studies of Single Cell and Short Stack for High Temperature Proton Exchange Membrane Fuel Cells Based on PBI/H
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Membrane. ChemistrySelect 2019. [DOI: 10.1002/slct.201903849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xuejing Sun
- Division of Fuel Cells and BatteryDalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of Sciences 116023 Dalian China
- University of Chinese Academy of Sciences 100049 Beijing China
| | - Yinhua Li
- Division of Fuel Cells and BatteryDalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of Sciences 116023 Dalian China
| | - Fulai Qi
- Division of Fuel Cells and BatteryDalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of Sciences 116023 Dalian China
| | - Fenning Jing
- Division of Fuel Cells and BatteryDalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of Sciences 116023 Dalian China
| | - Hai Sun
- Division of Fuel Cells and BatteryDalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of Sciences 116023 Dalian China
| | - Gongquan Sun
- Division of Fuel Cells and BatteryDalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of Sciences 116023 Dalian China
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Wen K, Wang HQ, Yu C, Lv XP, Qi F, Song JY. [The basic characteristics and medical status of pneumoconiosis patients under different investigation methods]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:659-664. [PMID: 31594120 DOI: 10.3760/cma.j.issn.1001-9391.2019.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the characteristics of pneumoconiosis patients and the basic status of medical treatment. Methods: Research objects were chosen by stratified sampling method and typical survey method from existing pneumoconiosis patients in China. The survey was carried out from March 2017 to January 2018 in nine provinces including provinces from east, medium and western region in China. Source of pneumoconiosis cases were inpatient cases, outpatient or physical-examined cases and household-investigation cases. The survey mainly included demographic and sociological characteristics, economic status, occupational history and dust exposure history, disease status, work-related injury insurance and social security status and related indicators of pneumoconiosis treatment. Results: Investigated 1037 pneumoconiosis cases which included 186 (19.9%) household-investigation cases, 212 (20.4%) outpatient or physical-examined cases and 639 (61.7%) inpatient cases. Demographic and sociological characteristics, individual monthly income, economic source, occupational history and work-related injury insurance were statistically significant among different source of pneumoconiosis patients (P<0.05) . Among all of the household-investigation cases, there were 74 cases (40.2%) had no income, 117 cases (62.9%) used to work in private enterprises, 36 cases (19.4%) had work-related injuries insurance, 95 cases (51.1%) were at three phase of pneumoconiosis, 108 cases (59.0%) haven't had any drugs for pneumoconiosis. 65 cases (39.4%) haven't went to the clinic, 53 cases (28.5%) hadn't seek medical advice although they needed medical treatment very much. Among all of the outpatient or physical-examined cases, there were 95 cases (46.1%) had no income, 36 cases (17.0%) had work-related injuries Insurance, 139 cases (65.6%) went to the clinic for treatment of pneumoconiosis, 81 cases (38.2%) went to the clinic for more than ten times. Among all the inpatient cases, 310 cases' (49.3%) personal monthly income was above 2000 yuan, 352 cases (55.1%) had work-related injuries Insurance, 588 cases (92.2%) were taking drugs for treatment of pneumoconiosis, 153 canses (24.2%) had hospitalization for than ten times. Conclusion: Household-investigation cases have lower economic conditions, lower rates of Insurance coverage for work-related injuries, severer pneumoconiosis and higher clinical service utilization. Clinical or physical-examined cases have lower economic conditions, lower rates of Insurance coverage for work-related injuries and higher clinical service utilization. Hospitalized cases have better economic conditions, higher rates of insurance coverage for work-related injuries and higher hospitalization service utilization.
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Affiliation(s)
- K Wen
- National Institute of Occupational Health and Poison Control, China Center for Disease Control and Prevention, Beijing 100050, China
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Ying Z, He T, Wang X, Zheng W, Lin N, Tu M, Xie Y, Ping L, Zhang C, Liu W, Deng L, Qi F, Lu X, Ding Y, Song Y, Zhu J. Parallel comparison of 4-1BB or CD28 co-stimulated CD19-targeted chimeric antigen receptor-T cells for B-cell non-Hodgkin lymphoma. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz253.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Ghazi ZA, Sun Z, Sun C, Qi F, An B, Li F, Cheng HM. Key Aspects of Lithium Metal Anodes for Lithium Metal Batteries. Small 2019; 15:e1900687. [PMID: 30972975 DOI: 10.1002/smll.201900687] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/04/2019] [Indexed: 05/18/2023]
Abstract
Rechargeable batteries are considered promising replacements for environmentally hazardous fossil fuel-based energy technologies. High-energy lithium-metal batteries have received tremendous attention for use in portable electronic devices and electric vehicles. However, the low Coulombic efficiency, short life cycle, huge volume expansion, uncontrolled dendrite growth, and endless interfacial reactions of the metallic lithium anode are major obstacles in their commercialization. Extensive research efforts have been devoted to address these issues and significant progress has been made by tuning electrolyte chemistry, designing electrode frameworks, discovering nanotechnology-based solutions, etc. This Review aims to provide a conceptual understanding of the current issues involved in using a lithium metal anode and to unveil its electrochemistry. The most recent advancements in lithium metal battery technology are outlined and suggestions for future research to develop a safe and stable lithium anode are presented.
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Affiliation(s)
- Zahid Ali Ghazi
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences Shenyang, Liaoning, 110016, China
| | - Zhenhua Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences Shenyang, Liaoning, 110016, China
| | - Chengguo Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences Shenyang, Liaoning, 110016, China
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan, 114051, China
| | - Fulai Qi
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences Shenyang, Liaoning, 110016, China
| | - Baigang An
- School of Chemical Engineering, University of Science and Technology Liaoning, Anshan, 114051, China
| | - Feng Li
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences Shenyang, Liaoning, 110016, China
| | - Hui-Ming Cheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences Shenyang, Liaoning, 110016, China
- Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute, Tsinghua University, Shenzhen, 518055, China
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Sun R, Xia Z, Qi F, Jing F, Deng R, Wang S, Sun G. Efficient Design for a High-Energy and High-Power Capability Hybrid Electric Power Device with Enhanced Electrochemical Interfaces. ACS Appl Mater Interfaces 2019; 11:19943-19949. [PMID: 31074955 DOI: 10.1021/acsami.9b01863] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Fabrication of novel electrode architectures with tailored electrochemical interfaces (EI) is an effective strategy for enhancing charge and mass transport processes within electrochemical devices. Here, we design and fabricate a well-hybrid electrode based on the coupling of polyaniline (PANI) nanowires and Pt-based electrocatalysts to manufacture a hybrid electric power device (HEPD) combining the advantages of supercapacitors and fuel cells. Because of the boosted charge transfer between PANI nanowires and Pt-based materials via enhanced EIs, the HEPD assembled with hybrid electrodes shows remarkable performance with a peak power density of 222 mW cm-2, a specific power of 3810 W kg-1, and a specific energy of 2100 Wh kg-1, normalized to the mass of membrane electrode assemblies. The in situ Raman spectra and extended electrochemical studies demonstrate the intrinsic mechanism of charge transfer processes within hybrid electrodes, shedding light on the alternative progress of electrochemical energy conversion systems and storage devices.
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Affiliation(s)
- Ruili Sun
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Zhangxun Xia
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , China
| | - Fulai Qi
- Institutes of Metal Research , Chinese Academy of Science , Shenyang 110016 , China
| | - Fenning Jing
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , China
| | - Ruoyi Deng
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Suli Wang
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , China
| | - Gongquan Sun
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics , Chinese Academy of Sciences , Dalian 116023 , China
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Wang X, Cao J, Yu Y, Ma B, Gao C, Lu J, Lin Y, Li P, Qi F. Role of MicroRNA 146a in Regulating Regulatory T Cell Function to Ameliorate Acute Cardiac Rejection in Mice. Transplant Proc 2019; 51:901-912. [DOI: 10.1016/j.transproceed.2019.01.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 01/02/2019] [Indexed: 12/15/2022]
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Abstract
Abstract
This abstract was not presented at the conference.
Citation Format: Zang Y-S, Qi F, Qin W-X. Not presented [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 P1-08-23.
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Affiliation(s)
- Y-S Zang
- Changzheng Hospital, Shanghai, China
| | - F Qi
- Changzheng Hospital, Shanghai, China
| | - W-X Qin
- Changzheng Hospital, Shanghai, China
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Qi F, Xia Z, Jin J, Fu X, Wei W, Wang S, Sun G. Chemical Foaming Coupled Self-Etching: A Multiscale Processing Strategy for Ultrahigh-Surface-Area Carbon Aerogels. ACS Appl Mater Interfaces 2018; 10:2819-2827. [PMID: 29227086 DOI: 10.1021/acsami.7b16556] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Due to the unique structure, carbon aerogels have always shown great potential for multifunctional applications. At present, it is highly desirable but remains challenging to tailor the microstructures with respect to porosity and specific surface area to further expand its significance. A facile chemical foaming coupled self-etching strategy is developed for multiscale processing of carbon aerogels. The strategy is directly realized via the pyrolysis of a multifunctional precursor (pentaerythritol melamine phosphate) without any special drying process and multiple steps. In the micrometer scale, the macroporous scaffold structures with interconnected and strutted carbon nanosheets are built up by chemical foaming from decomposition of melamine, whereas the meso/microporous nanosheets are formed via self-etching by phosphorus-containing species. The delicately hierarchical structures and record-breaking specific surface area of 2668.4 m2 g-1 render the obtained carbon aerogels great potentials for absorption (324.1-593.6 g g-1 of absorption capacities for varied organic solvents) and energy storage (338 F g-1 of specific capacitance). The construction of such novel carbon nanoarchitecture will also shed light on the design and synthesis of multifunctional materials.
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Affiliation(s)
- Fulai Qi
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
- University of Chinese Academy of Sciences , Beijing 100039, China
| | - Zhangxun Xia
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
| | - Jutao Jin
- School of Environment and Architecture, Dongguan University of Technology , Dongguan 523808, China
| | - Xudong Fu
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
| | - Wei Wei
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
| | - Suli Wang
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
| | - Gongquan Sun
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023, China
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Yang X, Qi F, Yang W, Guo C, Zhan S, Lu J. 0166 MOVEMENT IMPAIRMENT AND SLEEP DISORDER CAUSED BY BILATERAL GLOBUS PALLIDUS EXTERNUS (GPE) INJECTION OF COPPER IN RATS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Zhou DF, Qi F, Chen XL, Guo JB, Zuo XL, Shao HJ. Effect of Brominated Epoxy Resins on the Thermal Stability and Flame Retardancy of Long-Glass-Fiber Reinforced Polyamide 6. INT POLYM PROC 2016. [DOI: 10.3139/217.3245] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AbstractIn this work, the compounds of brominated epoxy resins and antimony trioxide (BER/Sb2O3) additives are analyzed and added into long-glass-fiber reinforced polyamide 6 (PA6/LGF) composites in order to solve the “candle-wick effect” caused by glass fibers. The thermal stability, flammability, and morphology of charred residues of the flame retardant PA6/LGF composites are investigated by thermogravimetric analysis (TGA), limiting oxygen index (LOI), UL-94 test, cone calorimeter test (CCT), and scanning electronic microscopy (SEM). The results show the addition of BER/Sb2O3 provides improvements in flame retardancy by increasing the LOI values, enhancing UL-94 rating, and reducing the heat release rate, total heat release and effective heat of combustion due to the formation of consolidated and thick charred residual structures on the surfaces of the LGF reinforced PA6 composites. When the content of BER/Sb2O3 is increased to 12 wt%, the LOI value and UL-94 rating of BER/PA6/LGF composites reach 24.8 and V-0, respectively. The TGA results exhibit that the decomposition temperature of the PA6/LGF composites decreases with the addition of BER/Sb2O3 additive, resulting in forming some high quality residual char layer. A possible flame retardant mechanism is proposed to illustrate the effect of the gaseous and condensed phases on the flame retardancy of the PA6/LGF composites.
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Affiliation(s)
- D.-F. Zhou
- 1School of Materials and Metallurgical Engineering, Guizhou Institute of Technology, Guiyang, PRC
| | - F. Qi
- 2Key Laboratory of Advanced Materials Technology Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, PRC
| | - X.-L. Chen
- 2Key Laboratory of Advanced Materials Technology Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, PRC
| | - J.-B. Guo
- 3National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang, PRC
| | - X.-L. Zuo
- 3National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang, PRC
| | - H.-J. Shao
- 3National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang, PRC
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Qi F, Jia XR, Li SP, Liu H, Wang YN. [Investigation on the tobacco epidemic and smoking attitudes among residents at early tobacco control legislation in Qingdao city]. Zhonghua Yu Fang Yi Xue Za Zhi 2016; 50:652-5. [PMID: 27412845 DOI: 10.3760/cma.j.issn.0253-9624.2016.07.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- F Qi
- Department of Health Education, Qingdao municipal Center for Disease Control and Prevention, Qingdao 266033, China
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Abstract
In self-collimated photonic crystal, periodically arranged air holes of sub-wavelength scale provide flattened equi-frequency curves perpendicular to the ΓM direction, which allow light or photons propagating in a quasi-uniform medium without diffraction. Here we for the first time experimentally simulate four-step single-photon discrete time quantum walks with classical light in such a photonic crystal chip fabricated on silicon-on-insulator. Similarities between theoretical expectations and experimental results are higher than 0.98. The functional area is compact and can be extended to construct more complicated linear quantum circuits.
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Affiliation(s)
- F Qi
- State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, CAS, No. 35A, Qinghua East Road, Haidian District, Beijing, Post Code: 100083, China.,Laboratory of Solid State Optoelectronics Information Technology, Institute of Semiconductors, CAS, No. 35A, Qinghua East Road, Haidian District, Beijing, Post Code: 100083, China.,College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, Post Code: 100049, China
| | - Y F Wang
- Laboratory of Solid State Optoelectronics Information Technology, Institute of Semiconductors, CAS, No. 35A, Qinghua East Road, Haidian District, Beijing, Post Code: 100083, China
| | - Q Y Ma
- State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, CAS, No. 35A, Qinghua East Road, Haidian District, Beijing, Post Code: 100083, China.,Laboratory of Solid State Optoelectronics Information Technology, Institute of Semiconductors, CAS, No. 35A, Qinghua East Road, Haidian District, Beijing, Post Code: 100083, China.,College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, Post Code: 100049, China
| | - W H Zheng
- State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, CAS, No. 35A, Qinghua East Road, Haidian District, Beijing, Post Code: 100083, China.,Laboratory of Solid State Optoelectronics Information Technology, Institute of Semiconductors, CAS, No. 35A, Qinghua East Road, Haidian District, Beijing, Post Code: 100083, China
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Abstract
Transient receptor potential cation channel, subfamily M, member 8 (TRPM8) is a nonselective cation channel and a candidate for cold sensation signaling, but the relationship between TRPM8 and diabetes remains unclear. In the present study, we determined the expression levels of TRPM8 messenger RNA (mRNA) and the levels of the TRPM8 protein in the bladder tissue of diabetic rats. We also investigated the correlation between TRPM8 expression and the visceral pain stimulation-related factor, calcitonin gene-related peptide (CGRP) in diabetic rats. The rats were sacrificed 3, 5, 7, and 15 days after streptozotocin injection, and blood was collected from their tail veins to determine the blood glucose levels. Bladder tissue was removed to assess the expression of TRPM8 mRNA by reverse transcription-polymerase chain reaction, and the expression of the TRPM8 protein by western blotting. After administering electrical stimulation (5 V/1 Hz), the expression levels of TRPM8 and CGRP proteins were determined. Our results revealed that the blood glucose level, and TRPM8 mRNA and TRPM8 protein expression levels increased significantly in the diabetic rats. Spinal tissue protein expression levels of both TRPM8 and CGRP also increased significantly following electrical stimulation. This possibly indicates that TRPM8 is closely associated with visceral pain stimulation, and could be an independent prognostic biomarker for diabetes.
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Affiliation(s)
- J Liu
- Department of Anesthesiology, Qilu Hospital, Shandong University, Jinan City, Shandong Province, China.,Department of Anesthesiology, Hainan Province People's Hospital, Haikou City, Hainan Province, China
| | - S L Dong
- Department of Anesthesiology, Haikou City People's Hospital, Haikou City, Hainan Province, China
| | - N Li
- Department of Anesthesiology, Hainan Province People's Hospital, Haikou City, Hainan Province, China
| | - B S Ouyang
- Department of Anesthesiology, Hainan Province People's Hospital, Haikou City, Hainan Province, China
| | - F Qi
- Department of Anesthesiology, Qilu Hospital, Shandong University, Jinan City, Shandong Province, China
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Florez F, Hiers R, Smart K, Kreth J, Qi F, Merritt J, Khajotia S. Non-destructive assessment of biofilm metabolism on resin composite. Dent Mater 2016. [DOI: 10.1016/j.dental.2016.08.199] [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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Yang YT, Liu Y, Qi F, Xu LL, Li XZ, Cong LJ, Guo X, Chen SX, Fang YL. Assessment of genetic diversity of cucumber cultivars in China based on simple sequence repeats and fruit traits. Genet Mol Res 2015; 14:19028-39. [PMID: 26782553 DOI: 10.4238/2015.december.29.10] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The cucumber (Cucumis sativus L.) is an important crop grown worldwide. In this study, the genetic diversity of 42 cucumber cultivars in China was analyzed using 51 pairs of simple sequence repeat (SSR) primers. These primers identified 129 polymorphic loci, 95.6% of which were polymorphic. The mean effective number of alleles, mean Nei's gene diversity, and mean Shannon's information index were 0.36, 0.16, and 0.21, respectively. A cluster analysis demonstrated that the 42 cultivars could be divided into three groups, a result that was largely consistent with those of a principal component analysis (PCA). The PCA indicated that the three groups displayed significant variation in fruit traits. The cultivars of group 1 tended to have longer fruits (>30 cm), longer fruit ends (>4 cm), larger fruit diameters (>5 cm), a sharp strigose fruit spine, and the same fruit end shape. The basal color of the fruit in group 2 was dark green. Group 3 cultivars have no wax or mottling on the fruit surface. Our study demonstrates the value of our SSR primers for assessing genetic diversity in cucumber.
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Affiliation(s)
- Y T Yang
- Key Laboratory of Horticultural Plant Germplasm Resources Utilization in Northwest, College of Horticulture Science, Northwest A&F University, Yangling, Shaanxi, China
| | - Y Liu
- Key Laboratory of Horticultural Plant Germplasm Resources Utilization in Northwest, College of Horticulture Science, Northwest A&F University, Yangling, Shaanxi, China
| | - F Qi
- Key Laboratory of Horticultural Plant Germplasm Resources Utilization in Northwest, College of Horticulture Science, Northwest A&F University, Yangling, Shaanxi, China
| | - L L Xu
- Key Laboratory of Horticultural Plant Germplasm Resources Utilization in Northwest, College of Horticulture Science, Northwest A&F University, Yangling, Shaanxi, China
| | - X Z Li
- Key Laboratory of Horticultural Plant Germplasm Resources Utilization in Northwest, College of Horticulture Science, Northwest A&F University, Yangling, Shaanxi, China
| | - L J Cong
- Key Laboratory of Horticultural Plant Germplasm Resources Utilization in Northwest, College of Horticulture Science, Northwest A&F University, Yangling, Shaanxi, China
| | - X Guo
- Key Laboratory of Horticultural Plant Germplasm Resources Utilization in Northwest, College of Horticulture Science, Northwest A&F University, Yangling, Shaanxi, China
| | - S X Chen
- Key Laboratory of Horticultural Plant Germplasm Resources Utilization in Northwest, College of Horticulture Science, Northwest A&F University, Yangling, Shaanxi, China
| | - Y L Fang
- Key Laboratory of Horticultural Plant Germplasm Resources Utilization in Northwest, College of Horticulture Science, Northwest A&F University, Yangling, Shaanxi, China
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Li C, Qi F, Liu T, Wang H, Wang PZ. Improved Cuff Technique for Establishing a Mouse-Rat Heterotopic Cardiac Xenotransplantation Model. Transplant Proc 2015; 47:2026-31. [PMID: 26293092 DOI: 10.1016/j.transproceed.2015.02.028] [Citation(s) in RCA: 4] [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] [Received: 11/03/2014] [Revised: 01/23/2015] [Accepted: 02/09/2015] [Indexed: 11/24/2022]
Abstract
BACKGROUND The small animal model of cardiac transplantation is the most common model in organ transplantation studies. The cervical heterotopic transplantation is widely performed because this allows for direct observation of the graft heartbeat and contributes to early prediction of graft rejection. OBJECTIVE A mouse-rat cervical heterotopic cardiac xenotransplantation model was modified with respect to the anesthesia method, cardiac graft harvesting method, and perioperative treatment. These improvements ensure the stability and reliability of xenotransplantation models for in vivo studies of immune-mediated graft rejection. METHODS After establishing isoflurane inhalation anesthesia, the donors' hearts were harvested. The experimental method involved separate ligation of the left and right superior venae cavae; the other blood vessels were ligated in a cluster. Both the donor and recipient animals were placed on a heating pad intraoperatively to maintain a body temperature of 37-40 °C. The model establishment was divided into 3 stages: practice, stabilization, and stereotyping. The surgical success rate and operation time were recorded. Specimens were harvested at different time points for histopathological examination. RESULTS The anesthetic effect of isoflurane was well maintained, and no animals died of adverse anesthetic events. Body temperature was maintained at 37-40 °C which effectively shortened the time to restoration. The modification of the cardiac graft harvesting method is conducive to rebeating of the donor heart. The success rates in the stabilization and stereotyping stages were significantly higher than that in the practice stage (P < .05). The operation time in the stabilization and stereotyping stages were significantly shorter than those in the practice stage (P < .05). Histopathological examination revealed thrombosis formation, interstitial hemorrhage, and inflammatory cell infiltration in the donor hearts. CONCLUSION Our findings suggest that the mouse-rat cervical heterotopic cardiac xenotransplantation model is the ideal animal model for studying xenograft rejection.
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Affiliation(s)
- C Li
- Department of General Surgery, General Hospital of Tianjin Medical University, Tianjin 300052, China
| | - F Qi
- Department of General Surgery, General Hospital of Tianjin Medical University, Tianjin 300052, China.
| | - T Liu
- Department of General Surgery, General Hospital of Tianjin Medical University, Tianjin 300052, China
| | - H Wang
- Department of General Surgery, General Hospital of Tianjin Medical University, Tianjin 300052, China
| | - P-Z Wang
- Department of General Surgery, General Hospital of Tianjin Medical University, Tianjin 300052, China
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Zeng S, Wu J, Liu J, Qi F, Liu B. IL-33 Receptor (ST2) Signalling is Important for Regulation of Th2-Mediated Airway Inflammation in a Murine Model of Acute Respiratory Syncytial Virus Infection. Scand J Immunol 2015; 81:494-501. [PMID: 25721734 DOI: 10.1111/sji.12284] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 02/13/2015] [Indexed: 12/31/2022]
Abstract
T1/ST2, an orphan receptor with homology with the interleukin (IL)-1 receptor family, is the ligand-binding component of the receptor for the cytokine IL-33, a newly identified cytokine known to amplify the Th2 cell-dominant immune responses. The function of IL-33/ST2 signalling during respiratory syncytial virus (RSV) infection is not fully known. In this study, following intranasal infection with RSV, BALB/c mice showed a marked increase in the production of IL-33, with an elevated expression of ST2 mRNA as well as a massive infiltration of CD45(+) ST2(+) cells in the lungs, suggesting that during the early phase of RSV infection, IL-33 target cells which express ST2 on cell surface, may play a critical role for the development of RSV-induced airway inflammation. Indeed, blocking ST2 signalling using anti-ST2 monoclonal antibody diminished not only RSV-induced eosinophil recruitment, but also the amounts of Th2-associated cytokines, particularly IL-13, and Th17-type cytokine IL-17A in the lungs of infected mice. However, anti-ST2 antibody treatment did not affect the production of Th1-type cytokine IFN-γ as well as pulmonary viral growth and clearance. These results indicate that IL-33/ST2 signalling is involved in RSV-induced, Th2-associated airway inflammation but not protective immunity.
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Affiliation(s)
- S Zeng
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - J Wu
- Batch 2011 of Clinical Medicine, Harbin Medical University, Harbin, China
| | - J Liu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - F Qi
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
| | - B Liu
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang, China
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Li H, Wu R, Qi F, Xiao A, Ma Z, Hu Y, Zhang W, Li W, Wang Z. Postpartum pelvic floor function performance after two different modes of delivery. Genet Mol Res 2015; 14:2994-3001. [DOI: 10.4238/2015.april.10.9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ying X, Feng S, Lu J, Qi F. A Literature Review on Cost-Effectiveness of Treatments for Wet Age-Related Maculare Degeneration. Value Health 2014; 17:A782. [PMID: 27202904 DOI: 10.1016/j.jval.2014.08.384] [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: 06/05/2023]
Affiliation(s)
- X Ying
- Fudan University, China, Shanghai, China
| | - S Feng
- Fudan University, China, Shanghai, China
| | - J Lu
- Fudan University, China, Shanghai, China
| | - F Qi
- Fudan University, China, Shanghai, China
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Feng S, Ying X, Qi F, Chang J. Cost-Effectiveness of Ranibizumab Versus Photodynamic Therapy for the Treatment of Neovascluar Age-Related Macular Degeneration Based in China Cost Setting. Value Health 2014; 17:A609. [PMID: 27202119 DOI: 10.1016/j.jval.2014.08.2128] [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: 06/05/2023]
Affiliation(s)
- S Feng
- Fudan University, China, Shanghai, China
| | - X Ying
- Fudan University, China, Shanghai, China
| | - F Qi
- Fudan University, China, Shanghai, China
| | - J Chang
- Beijing Novartis Pharma Co., Ltd, Beijing, China
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Aizawa H, Shimane T, Qi F, Li Y, Xiao T, Kurita H. Vital staining with iodine solution: research of glycogen metabolism in oral squamous cell carcinoma. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Qi F, Shimane T, Aizawa H, Li Y, Kurita H. Construction and characterization of Human oral mucosal equivalent using Amniotic membrane as a matrix. J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.joms.2014.06.383] [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: 10/24/2022]
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32
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Li H, Wu R, Hu Y, Qi F, Xiao A, Ma Z, Chen Y, Zhang W, Liu X, Wang Z. Effect of gestational weight gain as well as rehabilitation training on postnatal pelvic muscle strength. CLIN EXP OBSTET GYN 2014. [DOI: 10.12891/ceog16382014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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33
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Li H, Wu RF, Hu Y, Qi F, Xiao AM, Ma Z, Chen Y, Zhang WY, Liu X, Wang ZC. Effect of gestational weight gain as well as rehabilitation training on postnatal pelvic muscle strength. CLIN EXP OBSTET GYN 2014; 41:399-401. [PMID: 25134284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE The current study explored the impact of gestational weight gain on postnatal pelvic muscle strength and the effect of low-frequency electrical stimulation combined with biofeedback training on strength recovery. MATERIALS AND METHODS A total of 126 mothers six to eight weeks after term delivery were recruited at Peking University Shenzhen Hospital from August 2010 to July 2011. According to gestational weight gain, they were divided into two groups: the < 15 kg (A) and > or = 15 kg (B) groups. Pelvic floor muscle fibre strength was determined. Target low-frequency electrical stimulation combined with biofeedback training was conducted. After training, pelvic floor muscle fiber strength was determined again for effect evaluation. RESULTS Before training, types I and II pelvic floor muscle fiber strength of group B was noticeably lower than that of group A (p < 0.05). After rehabilitation, the pelvic floor muscle strength of both groups significantly increased (p < 0.05). However, types I and II pelvic floor muscle fiber strength of group B was still significantly lower than that of group A (p < 0.05). CONCLUSION Gestational weight gain negatively influences pelvic floor muscles. Low-frequency electrical stimulation combined with biofeedback training improves postnatal pelvic floor muscle fiber strength. A less gestational weight increase indicates faster postnatal pelvic muscle strength recovery and a better rehabilitative effect.
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Jiang Z, Li L, Liu Y, Wang T, Zhang S, Yuan Y, Bian L, Liu Q, Qi F. Abstract OT1-1-04: HER2 status of circulating tumor cells in HER2-positive metastatic breast cancer patients: A valuable biomarker in anti-HER2 therapy. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-ot1-1-04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: In the earlier study which we have conducted, we observed that: among the patients who were histologically positive for HER2 and received anti-HER2 therapy, only those with HER2-positive circulating tumor cells (CTCs) have benefited. We also demonstrated that CTC enumeration with a modified cut-off is a valuable prognostic tool for HER2-positive MBC patients, and formulated the criterion for evaluating CTCs HER2 status. Although the number of cases was not adequate enough so as to make the persuasion of the statistical analysis limited, it was still a valuable innovative study worthy of further exploring.
Purpose: we conducted a prospective study in order to find out whether HER2 expression in circulating tumor cells (CTCs) influenced anti-HER2 therapy in those HER2-positive metastatic breast cancer (MBC) patients.
Trial design
Patients: All the patients randomly enrolled in the trial were diagnosed with metastatic breast cancer, and the metastasis of all eligible subjects can be measured or evaluated, the Eastern Cooperative Oncology Group (ECOG) performance status score is 0 to 3. Each patient had a pathology report confirmed that this was a HER2-positve patient by the means of an immunohistochemistry (IHC) score or a fluorescent in situ hybridization (FISH) ratio, the researcher was also informed of the histological type, nodal status, estrogen receptor (ER), progesterone receptor (PgR) statuses. All of the patients would receive a new line or a new cycle of systematic therapy which must include the anti-HER2 therapy. The blood sample (10 ml) was drawn with an interval of <7days before the initiating of the new treatment. All the therapeutic regimens were made without knowing the CTC results and according to the National Comprehensive Cancer Network (NCCN) clinical practice guidelines (Breast Cancer V.2.2010). Disease status was evaluated by Response Evaluation Criteria in Solid Tumors (RECIST).
Detection method: CTC isolation, enumeration and characterization were performed by using the CellSearch technology. HER2 expression intensity in CTC was given a score of 0, 1+, 2+, or 3+, according to the trial we have conducted previously, the CTC HER2 positive criterion was defined as >30% of CTCs over-expressing HER2 (3+).
Statistical method: PFS was measured as the time between the baseline CTC assessment and the documentation of disease progression or death. Patients who were alive without progression at the time of analysis, PFS was calculated by the most recent follow-up evaluations. Kaplan-Meier survival curves were generated based on the
CTC levels at baseline and the HER2 status of CTC, the curves were compared using the log-rank test.
Present accrual and target accrual: 174 eligible patients were enrolled during September 2010 to April 2013, 76 patients were detected with CTC31, 50 patients received a new line or a new cycle of anti-HER2 therapy within 7days. Among the 50 patients, 40 patients received Trastuzumab and others received Lapatinib. With the ongoing of the trial, we’ll continue following up with PFS and other data of the patients.
Types of anti-HER2 therapyAnti-HER2 therapyNTrastuzumab40Lapatinib10Total50
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr OT1-1-04.
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Affiliation(s)
- Z Jiang
- Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China; Translational Medicine Center, Laboratory of Oncology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - L Li
- Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China; Translational Medicine Center, Laboratory of Oncology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - Y Liu
- Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China; Translational Medicine Center, Laboratory of Oncology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - T Wang
- Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China; Translational Medicine Center, Laboratory of Oncology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - S Zhang
- Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China; Translational Medicine Center, Laboratory of Oncology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - Y Yuan
- Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China; Translational Medicine Center, Laboratory of Oncology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - L Bian
- Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China; Translational Medicine Center, Laboratory of Oncology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - Q Liu
- Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China; Translational Medicine Center, Laboratory of Oncology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
| | - F Qi
- Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China; Translational Medicine Center, Laboratory of Oncology, Affiliated Hospital of Academy of Military Medical Sciences, Beijing, China
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Wang Y, Qi F, Zhu S, Ye Z, Ma T, Hu X, Huang J, Luo Z. A synthetic oxygen carrier in fibrin matrices promotes sciatic nerve regeneration in rats. Acta Biomater 2013; 9:7248-63. [PMID: 23545152 DOI: 10.1016/j.actbio.2013.03.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Revised: 02/12/2013] [Accepted: 03/18/2013] [Indexed: 12/20/2022]
Abstract
Tissue-engineering nerve conduits have been studied for a long time in bridging large nerve defects. However, the low oxygen availability within the nerve conduits, which results in death of migratory Schwann cells (SC) or loss of the newly formed tissue's function, is still an obstacle for axonal regeneration. Thus, it was hypothesized that an oxygen-enriched conduit would enhance axonal regeneration and functional recovery in vivo. To address this issue, perfluorotributylamine (PFTBA) enriched fibrin hydrogel was prepared and injected into collagen-chitosan conduits. The conduit containing PFTBA-enriched fibrin hydrogel was then used to bridge a 12-mm sciatic nerve defect in rats. The control rats were bridged with collagen-chitosan conduits filled with fibrin matrices without PFTBA. It was found that axonal regeneration and functional recovery in the combined PFTBA group were significantly higher than those in the control group without PFTBA. Further investigations showed that the mRNA and protein levels of S-100, brain-derived neurotrophic factor and nerve growth factor were enhanced by PFTBA at 1 and 3weeks after surgery. However, the mRNA and protein levels of vascular endothelial growth factor were in a similar range between the combined PFTBA group and the control group without PFTBA. In addition, immunohistochemical results showed that the morphological appearances of regenerated nerve and survival of SC were enhanced by PFTBA at 4 and 12weeks after surgery. In conclusion, PFTBA-enriched nerve conduit is capable of enhancing axonal regeneration, which provides a new avenue for achieving better functional recovery in the treatment of nerve defect.
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Affiliation(s)
- Y Wang
- Institute of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi'an 710033, China
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36
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Zhou ZY, Wang Y, Tang XF, Wu WH, Qi F. A new apparatus for study of pressure-dependent laminar premixed flames with vacuum ultraviolet photoionization mass spectrometry. Rev Sci Instrum 2013; 84:014101. [PMID: 23387669 DOI: 10.1063/1.4773541] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We report a home-made combustion apparatus for study of pressure-dependent laminar premixed flames with tunable vacuum ultraviolet photoionization mass spectrometry. The instrument consists of a flame chamber, a photoionization chamber with a single-stage sampling system, an ion transfer/storage system, and an orthogonal-acceleration reflectron time-of-flight mass spectrometer. Preliminary results of fuel-rich C(2)H(4)/O(2)/Ar flames at pressures of 30, 150, and 760 Torr have been obtained with this instrument. Compared to previous instruments [T. A. Cool, A. McIlroy, F. Qi, P. R. Westmoreland, L. Poisson, D. S. Peterka, and M. Ahmed, Rev. Sci. Instrum. 76, 094102 (2005); F. Qi, R. Yang, B. Yang, C. Q. Huang, L. X. Wei, J. Wang, L. S. Sheng, and Y. W. Zhang, Rev. Sci. Instrum. 77, 084101 (2006)], performances of the new apparatus have higher mass resolution (~3500 at m/z = 40), better detection limit (<1 ppm), and broader dynamic range (better than 5 order of magnitude).
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Affiliation(s)
- Z Y Zhou
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029, People's Republic of China
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Li H, Liu Z, Wu R, Qi F, Xiao A, Zhang W. W464 CLINICAL OBSERVATION OF THE SHORT-TERM EFFECTS OF POSTPARTUM WOMEN'S PELVIC FLOOR FUNCTION IN DIFFERENT DELIVERY WAY. Int J Gynaecol Obstet 2012. [DOI: 10.1016/s0020-7292(12)62183-3] [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: 11/26/2022]
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Abstract
Streptococcus mutans is generally recognized as a causative agent of human dental caries. The production of mutacins (bacteriocins) by S. mutans is considered to be an important factor in the colonization and establishment of S. mutans in the dental biofilm. Two types of mutacins have been characterized: the lantibiotics and the non-lantibiotics. The lantibiotics generally have a wider spectrum of activity than the non-lantibiotics, which make them attractive targets for development into new antimicrobial modalities. The non-lantibiotics are much more prevalent among strains of S. mutans and play a significant role in both community-level and population-level interactions in the dental biofilm. These interactions are directly mediated through the ComCDE two-component system and the newly characterized LytTR Regulation Systems HdrRM and BrsRM. These systems coordinate natural competence development and mutacin production as a means to acquire transforming DNA either by killing closely related streptococcal species in the vicinity of S. mutans, or through an altruistic suicide mechanism among a subpopulation of competent cells within the S. mutans community. As more S. mutans strains are sequenced, it is anticipated that additional mutacins with novel functions will be discovered, which may yield further insights into the ecological role of mutacins within the oral biofilm.
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Affiliation(s)
- J Merritt
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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Shardt Y, Zhao Y, Qi F, Lee K, Yu X, Huang B, Shah S. Determining the state of a process control system: Current trends and future challenges. CAN J CHEM ENG 2011. [DOI: 10.1002/cjce.20653] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Xie G, Chain PSG, Lo CC, Liu KL, Gans J, Merritt J, Qi F. Community and gene composition of a human dental plaque microbiota obtained by metagenomic sequencing. Mol Oral Microbiol 2011; 25:391-405. [PMID: 21040513 DOI: 10.1111/j.2041-1014.2010.00587.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Human dental plaque is a complex microbial community containing an estimated 700 to 19,000 species/phylotypes. Despite numerous studies analysing species richness in healthy and diseased human subjects, the true genomic composition of the human dental plaque microbiota remains unknown. Here we report a metagenomic analysis of a healthy human plaque sample using a combination of second-generation sequencing platforms. A total of 860 million base pairs of non-human sequences were generated. Various analysis tools revealed the presence of 12 well-characterized phyla, members of the TM-7 and BRC1 clade, and sequences that could not be classified. Both pathogens and opportunistic pathogens were identified, supporting the ecological plaque hypothesis for oral diseases. Mapping the metagenomic reads to sequenced reference genomes demonstrated that 4% of the reads could be assigned to the sequenced species. Preliminary annotation identified genes belonging to all known functional categories. Interestingly, although 73% of the total assembled contig sequences were predicted to code for proteins, only 51% of them could be assigned a functional role. Furthermore, ~2.8% of the total predicted genes coded for proteins involved in resistance to antibiotics and toxic compounds, suggesting that the oral cavity is an important reservoir for antimicrobial resistance.
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Affiliation(s)
- G Xie
- Oralgen Database, Genome Science Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
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Okinaga T, Xie Z, Niu G, Qi F, Merritt J. Examination of the hdrRM regulon yields insight into the competence system of Streptococcus mutans. Mol Oral Microbiol 2010; 25:165-77. [PMID: 20536745 DOI: 10.1111/j.2041-1014.2010.00574.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Previous studies have identified the hdrRM operon as a novel regulatory system induced by conditions of high cell density. Little is known about the genes under the control of this system, but a variety of important phenotypes are associated with either hdrR overexpression or mutation of hdrM. To characterize the regulatory function of the HdrRM system in Streptococcus mutans we used a microarray approach to compare the transcriptional profiles of an hdrR overexpression strain with an hdrM mutant. Both strains exhibited almost identical profiles, which included all of the known late competence genes as well as a variety of competence-induced bacteriocins. Through a combination of real-time reverse transcription-polymerase chain reaction (PCR), reporter gene analysis and random amplification of complementary DNA ends PCR, we confirmed the role of comX as a central intermediate regulator of numerous genes in the hdrRM regulon. Through these studies, we also identified novel comX-regulated genes required for natural competence. Taken together, our results suggest that the primary function of the HdrRM system is to regulate the late competence genes together with various bacteriocins. This occurs independently of the ComCDE system, even though both systems regulate nearly identical genes. This suggests that S. mutans has multiple parallel input sensory systems that control the same output response: the induction of natural competence and concurrent production of bacteriocins.
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Affiliation(s)
- T Okinaga
- Department of Oral Biology, College of Dentistry, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104-5419, USA
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Weber A, Qi F, Moiseev A, Deubener J. Herstellung und Anwendung thermostabiler TiO2-SiO2-Nanopartikeln in einer Diffusionsflamme. CHEM-ING-TECH 2010. [DOI: 10.1002/cite.201050226] [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: 11/09/2022]
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Li X, Dash RK, Pradhan RK, Qi F, Thompson M, Vinnakota KC, Wu F, Yang F, Beard DA. A database of thermodynamic quantities for the reactions of glycolysis and the tricarboxylic acid cycle. J Phys Chem B 2010; 114:16068-82. [PMID: 20446702 DOI: 10.1021/jp911381p] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Analysis of biochemical systems requires reliable and self-consistent databases of thermodynamic properties for biochemical reactions. Here a database of thermodynamic properties for the reactions of glycolysis and the tricarboxylic acid cycle is developed from measured equilibrium data. Species-level free energies of formation are estimated on the basis of comparing thermodynamic model predictions for reaction-level equilibrium constants to previously reported data obtained under different experimental conditions. Matching model predictions to the data involves applying state corrections for ionic strength, pH, and metal ion binding for each input experimental biochemical measurement. By archiving all of the raw data, documenting all model assumptions and calculations, and making the computer package and data available, this work provides a framework for extension and refinement by adding to the underlying raw experimental data in the database and/or refining the underlying model assumptions. Thus the resulting database is a refinement of preexisting databases of thermodynamics in terms of reliability, self-consistency, transparency, and extensibility.
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Affiliation(s)
- X Li
- Department of Physiology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, Wisconsin 53226, USA
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Xiao M, Qi F, Chen X, Luo Z, Zhang L, Zheng C, Hu S, Jiang X, Zhou M, Tang J. Functional polymorphism ofcytotoxic T-lymphocyte antigen 4and nasopharyngeal carcinoma susceptibility in a Chinese population. Int J Immunogenet 2010; 37:27-32. [DOI: 10.1111/j.1744-313x.2009.00888.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [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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Xie L, Qi F, Gao H, Wang T, Shi W, Zhao J. Major shifts in corneal transplantation procedures in north China: 5316 eyes over 12 years. Br J Ophthalmol 2009; 93:1291-5. [DOI: 10.1136/bjo.2008.148981] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
Human saliva can be separated by centrifugation into cell pellet and cell-free supernatant, which are called cellular phase and liquid phase in this study. While it is well documented that the cellular phase of saliva contains hundreds of oral bacteria species, little is known whether the liquid phase of saliva contains any information related to oral microbiota. In this study, we analyzed the bacterial nucleic acid contents of the liquid phase of saliva. Using primers universal to most eubacterial 16S rDNA, we detected large amounts of bacterial 16S rRNA and rDNA in the cell-free phase of saliva. Random sequencing analysis of forty PCR amplicons from the cell-free phase of saliva led to 15 operational taxonomic unit (OTU) groups. Furthermore, using denaturing gradient gel electrophoresis (DGGE), we compared 16S rRNA/rDNA profiles derived from liquid phases and cellular phases of saliva samples, and found positive correlations (Pearson Correlation=0.822, P<0.001) between these sample groups. These findings indicate that the liquid phase of saliva contains numerous bacterial 16S rRNA/rDNA molecules that have correlations with bacteria existing in the cellular phase.
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Affiliation(s)
- F Gu
- Division of Oral Biology and Medicine, UCLA School of Dentistry, Los Angeles, California 90095, USA
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Jia CQ, Zhao JG, Zhang SF, Qi F. Stromal cell-derived factor-1 and vascular endothelial growth factor may play an important role in the process of neovascularization of herniated intervertebral discs. J Int Med Res 2009; 37:136-44. [PMID: 19215683 DOI: 10.1177/147323000903700116] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Increased levels of stromal cell-derived factor (SDF)-1 occur in certain pathological situations, however the relationship between SDF-1alpha expression and human intervertebral disc herniation is unknown. Vascular endothelial growth factor (VEGF) plays an essential role in the formation of new blood vessels. The present study used immunohistochemistry to measure the expression of SDF-1alpha and VEGF in surgical specimens of human intervertebral discs to evaluate their role in neovascularization. The frequency of expression of SDF-1alpha and VEGF was found to be significantly higher in extruded and sequestrated herniated intervertebral discs compared with bulging, protruding and prolapsed herniated discs and control discs and there was high correlation between SDF-1alpha and VEGF expressions. It is concluded that SDF-1alpha and VEGF are expressed in human intervertebral discs and their interaction may be important in accumulating endothelial progenitor cells during the neovascularization processes in herniated intervertebral discs.
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Affiliation(s)
- C-Q Jia
- Department of Orthopaedics, Shengjing Hospital, China Medical University, Shenyang, China.
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Abstract
SUMMARY The Biochemical Simulation Environment (BISEN) is a suite of tools for generating equations and associated computer programs for simulating biochemical systems in the MATLAB computing environment. This is the first package that can generate appropriate systems of differential equations for user-specified multi-compartment systems of enzymes and transporters accounting for detailed biochemical thermodynamics, rapid equilibria of multiple biochemical species and dynamic proton and metal ion buffering. AVAILABILITY The software and a user manual (including several tutorial examples) are available at bbc.mcw.edu/BISEN.
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Affiliation(s)
- J Vanlier
- BioModeling and Bioinformatics, BioMedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
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Ling S, Qi F, Zhu Y. Molecular cloning, sequence analysis and expression studies of a novel GAmyb homologous gene, hvmyb. Sci China C Life Sci 2008; 41:525-9. [PMID: 18726235 DOI: 10.1007/bf02882891] [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] [Subscribe] [Scholar Register] [Received: 03/30/1998] [Indexed: 11/26/2022]
Abstract
Using a known GAmyb gene as the probe, two fully identical clones were isolated from a barley aleurone cDNA library. Sequence analysis showed that their 5' termini are highly homologous to the 3' termini of GAmyb (97%) and their 3' termini share no significant homology with any myb genes. Therefore, the deduced protein may hold intact putative GAmyb activation domain but lack the normal DNA-binding domain. Northern blot reveals that hvmyb expression in barley aleurone layers is strongly up-regulated by gibberellin (GA) and down-regulated by abscisic acid (APIA). The tissue-and developmental-stage-specificity of hvmyb was also found, which was only expressed in barley aleurone cells and dropped to non-detectable level soon after germination.
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Affiliation(s)
- S Ling
- Peking University, Beijing, China
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