32 results on '"Peng, Shuyi"'
Search Results
2. Morph-genetic biomimetic multiscale porous hydrogels for high-efficient solar evaporation from seawater
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Chen, Lin, Sun, Yue, Ma, Chao, Sun, Ye, Peng, Shuyi, Cao, Xingyu, Yang, Lang, Ma, Chunxin, Zhao, Hongliang, Wang, Hao, Zhang, Dong, Liu, Qijie, Liu, Zhenzhong, Yuan, Yihui, and Wang, Ning
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- 2023
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3. A skin-mimetic MXene-loaded silk-textile composite anisotropic hydrogel for programmable complex, powerful and fast light-responsive actuations
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Cao, Xingyu, Zhang, Kaihang, Wang, Tianle, Sun, Ye, Chen, Lin, Peng, Shuyi, Ma, Chao, Yang, Lang, Xu, Yingguang, Li, Kaipeng, Ma, Chunxin, Liu, Qijie, Liu, Zhenzhong, and Yang, Xuxu
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- 2023
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4. Pold4 is dispensable for mouse development, DNA replication and DNA repair
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Gu, Xueping, Dai, Qinjin, Du, Peng, Li, Ning, Li, Jiahui, Zeng, Simiao, Peng, Shuyi, Tang, Shengjun, Wang, Lei, and Zhou, Zhongcheng
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- 2023
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5. A robust anisotropic light-responsive hydrogel for ultrafast and complex biomimetic actuation via poly(pyrrole)-coated electrospun nanofiber
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Wei, Xianshuo, Xue, Yaoting, Sun, Ye, Chen, Lian, Zhang, Chunmei, Wu, Qijun, Peng, Shuyi, Ma, Chunxin, Liu, Zhenzhong, Jiang, Shaohua, Yang, Xuxu, Agarwal, Seema, and Duan, Gaigai
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- 2023
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6. Innovative strategies for photodynamic therapy against hypoxic tumor
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Li, Xiaotong, Chen, Lei, Huang, Miaoting, Zeng, Shaoting, Zheng, Jiayi, Peng, Shuyi, Wang, Yuqing, Cheng, Hong, and Li, Shiying
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- 2023
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7. A wood-mimetic porous MXene/gelatin hydrogel for electric field/sunlight bi-enhanced uranium adsorption
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Chen Lin, Sun Ye, Wang Jiawen, Ma Chao, Peng Shuyi, Cao Xingyu, Yang Lang, Ma Chunxin, Duan Gaigai, Liu Zhenzhong, Wang Hui, Yuan Yihui, and Wang Ning
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wood-mimetic macropores ,hydrogels ,mxenes ,uranium extraction ,seawater ,Polymers and polymer manufacture ,TP1080-1185 - Abstract
Although diverse uranium (U) adsorbents have been explored, it is still a great challenge for high-efficient uranium extraction form seawater. Herein a wood-mimetic oriented porous Ti3C2Tx-MXene/gelatin hydrogel (MGH) has been explored through growing directional ice crystals cooled by liquid nitrogen and subsequently forming pores by freeze-dry (Ice-template) method, for ultrafast and high-efficient U-adsorption from seawater with great enhancement by both electric field and sunlight. Different from disperse Ti3C2Tx-MXene powder, this MGH not only can be easily utilized but also can own ultrahigh specific surface area for high-efficient U-adsorption. The U-adsorbing capacity of this MGH (10 mg) can reach 4.17 mg·g−1 after only 1 week in 100 kg of seawater, which is outstanding in existing adsorbents. Furthermore, on the positive pole of 0.4 V direct current source or under 1-sun irradiation, the U-adsorbing capacity of the MGH can increase by 57.11% and 13.57%, respectively. Most importantly, the U-adsorption of this hydrogel can be greatly enhanced by simultaneously using the above two methods, which can increase the U-adsorbing capacity by 79.95% reaching 7.51 mg·g−1. This work provides a new biomimetic porous MXene-based hydrogel for electric field/sunlight bi-enhanced high-efficient U-extraction from seawater, which will inspire new strategy to design novel U-adsorbents and systems.
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- 2022
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8. A poly(amidoxime)-modified MOF macroporous membrane for high-efficient uranium extraction from seawater
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Wang Jiawen, Sun Ye, Zhao Xuemei, Chen Lin, Peng Shuyi, Ma Chunxin, Duan Gaigai, Liu Zhenzhong, Wang Hui, Yuan Yihui, and Wang Ning
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uranium recovery from seawater ,metal–organic frameworks ,poly(amidoxime) ,graphene oxide ,composite porous membrane ,Polymers and polymer manufacture ,TP1080-1185 - Abstract
Although metal–organic frameworks (MOFs) own excellent uranium adsorption capacity but are still difficult to conveniently extract uranium from seawater due to the discrete powder state. In this study, a new MOF-based macroporous membrane has been explored, which can high-efficiently extract uranium through continuously filtering seawater. Through modifying the UiO-66 with poly(amidoxime) (PAO), it can disperse well in a N,N-dimethylformamide solution of graphene oxide and cotton fibers. Then, the as-prepared super-hydrophilic MOF-based macroporous membrane can be fabricated after simple suction filtration. Compared with nonmodified MOFs, this UiO-66@PAO can be dispersed uniformly in the membrane because it can stabilize well in the solution, which have largely enhanced uranium adsorbing capacity owing to the modified PAO. Last but not least, different from powder MOFs, this UiO-66@PAO membrane provides the convenient and continuously uranium adsorbing process. As a consequence, the uranium extraction capacity of this membrane can reach 579 mg·g−1 in 32 ppm U-added simulated seawater for only 24 h. Most importantly, this UiO-66@PAO membrane (100 mg) can remove 80.6% uranyl ions from 5 L seawater after 50 filtering cycles. This study provides a universal method to design and fabricate a new MOF-based adsorbent for high-efficient uranium recovery from seawater.
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- 2022
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9. Recent advances in dynamic covalent bond-based shape memory polymers
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Peng Shuyi, Sun Ye, Ma Chunming, Duan Gaigai, Liu Zhenzhong, and Ma Chunxin
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dynamic covalent bonds ,shape memory polymers ,self-healing ,polymeric hydrogels ,3d printing ,Polymers and polymer manufacture ,TP1080-1185 - Abstract
Dynamic covalent bond-based shape memory polymers (DCB-SMPs) are one of most important SMPs which have a wide potential application prospect. Different from common strong covalent bonds, DCBs own relatively weak bonding energy, similarly to the supramolecular interactions of noncovalent bonds, and can dynamically combine and dissociate these bonds. DCB-SMP solids, which can be designed to respond for different stimuli, can provide excellent self-healing, good reprocessability, and high mechanical performance, because DCBs can obtain dynamic cross-linking without sacrificing ultrahigh fixing rates. Furthermore, besides DCB-SMP solids, DCB-SMP hydrogels with responsiveness to various stimuli also have been developed recently, which have special biocompatible soft/wet states. Particularly, DCB-SMPs can be combined with emerging 3D-printing techniques to design various original shapes and subsequently complex shape recovery. This review has summarized recent research studies about SMPs based on various DCBs including DCB-SMP solids, DCB-SMP hydrogels, and the introduction of new 3D-printing techniques using them. Last but not least, the advantages/disadvantages of different DCB-SMPs have been analyzed via polymeric structures and the future development trends in this field have been predicted.
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- 2022
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10. A nanoclay enhanced Amidoxime-Functionalized Double-Network hydrogel for fast and massive uranium recovery from seawater
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Liu, Rongrong, Wen, Shunxi, Sun, Ye, Yan, Bingjie, Wang, Jiawen, Chen, Lin, Peng, Shuyi, Ma, Chao, Cao, Xingyu, Ma, Chunxin, Duan, Gaigai, Shi, Se, Yuan, Yihui, and Wang, Ning
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- 2021
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11. Heparin-free veno-arterial extracorporeal membrane oxygenation in lung transplantation: a retrospective cohort study.
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Huang, ZhaoMin, Zheng, Jiayi, Wang, Mingyang, Zeng, Shaoting, Huang, Miaoting, Peng, Shuyi, Li, Jiajun, Ji, Jiaming, Chen, Quan, Xu, Xin, Yang, Chao, Peng, GuiLin, and Yang, Hanyu
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EXTRACORPOREAL membrane oxygenation ,LUNG transplantation ,ARTIFICIAL blood circulation ,COHORT analysis - Abstract
Background: In lung transplantation (LTx) surgery, veno-arterial extracorporeal membrane oxygenation (VA-ECMO) can provide mechanical circulatory support to patients with cardiopulmonary failure. However, the use of heparin in the administration of ECMO can increase blood loss during LTx. This study aimed to evaluate the safety of heparin-free V-A ECMO strategies. Methods: From September 2019 to April 2022, patients who underwent lung transplantation at the First Affiliated Hospital of Guangzhou Medical University were retrospectively reviewed. A total of 229 patients were included, including 117 patients in the ECMO group and 112 in the non-ECMO group. Result: There was no significant difference in the incidence of thrombus events and bleeding requiring reoperation between the two groups. The in-hospital survival rate after single lung transplantation (SLTx) was 81.08%in the ECMO group and 85.14% in the Non-ECMO group, (P = 0.585). The in-hospital survival rate after double lung transplantation (DLTx) was 80.00% in the ECMO group and 92.11% in the Non-ECMO groups (P = 0.095). Conclusions: In conclusion, the findings of this study suggest that the heparin-free V-A ECMO strategy in lung transplantation is a safe approach that does not increase the incidence of perioperative thrombotic events or bleeding requiring reoperation. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Cohesivity assessment of semi-crystalline and crystalline powders using a Warren Springs cohesion tester
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Jange, Camila G., Taku, Pumu, Peng, Shuyi, Dixon, Michelle P., Shetty, Abhishek, and Ambrose, R.P. Kingsly
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- 2020
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13. Anisotropic Bi-Layer Hydrogel Actuator with pH-Responsive Color-Changing and Photothermal-Responsive Shape-Changing Bi-Functional Synergy.
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Ma, Chao, Peng, Shuyi, Chen, Lian, Cao, Xingyu, Sun, Ye, Chen, Lin, Yang, Lang, Ma, Chunming, Liu, Qijie, Liu, Zhenzhong, and Jiang, Shaohua
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HYDROGELS ,ACTUATORS ,RHODAMINE B ,BIOMIMETICS ,NEAR infrared radiation - Abstract
Stimuli-responsive color-changing and shape-changing hydrogels are promising intelligent materials for visual detections and bio-inspired actuations, respectively. However, it is still an early stage to integrate the color-changing performance and shape-changing performance together to provide bi-functional synergistic biomimetic devices, which are difficult to design but will greatly expand further applications of intelligent hydrogels. Herein, we present an anisotropic bi-layer hydrogel by combining a pH-responsive rhodamine-B (RhB)-functionalized fluorescent hydrogel layer and a photothermal-responsive shape-changing melanin-added poly (N-isopropylacrylamide) (PNIPAM) hydrogel layer with fluorescent color-changing and shape-changing bi-functional synergy. This bi-layer hydrogel can obtain fast and complex actuations under irradiation with 808 nm near-infrared (NIR) light due to both the melanin-composited PNIPAM hydrogel with high efficiency of photothermal conversion and the anisotropic structure of this bi-hydrogel. Furthermore, the RhB-functionalized fluorescent hydrogel layer can provide rapid pH-responsive fluorescent color change, which can be integrated with NIR-responsive shape change to achieve bi-functional synergy. As a result, this bi-layer hydrogel can be designed using various biomimetic devices, which can show the actuating process in the dark for real-time tracking and even mimetic starfish to synchronously change both the color and shape. This work provides a new bi-layer hydrogel biomimetic actuator with color-changing and shape-changing bi-functional synergy, which will inspire new strategies for other intelligent composite materials and high-level biomimetic devices. [ABSTRACT FROM AUTHOR]
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- 2023
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14. Polyurethane Shape Memory Polymer/pH-Responsive Hydrogel Hybrid for Bi-Function Synergistic Actuations.
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Peng, Shuyi, Cao, Xingyu, Sun, Ye, Chen, Lin, Ma, Chao, Yang, Lang, Zhao, Hongliang, Liu, Qijie, Liu, Zhenzhong, and Ma, Chunxin
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POLYURETHANES ,SHAPE memory polymers ,POLYACRYLIC acid ,SMART materials ,ACTUATORS - Abstract
Stimuli-responsive actuating hydrogels response to the external stimulus with complex deformation behaviors based on the programmable anisotropic structure design are one of the most important smart soft materials, which have great potential applications in artificial muscles, smart values, and mini-robots. However, the anisotropic structure of one actuating hydrogel can only be programmed one time, which can only provide single actuating performance, and subsequently, has severely limited their further applications. Herein, we have explored a novel SMP/hydrogel hybrid actuator through combining polyurethane shape memory polymer (PU SMP) layer and pH-responsive polyacrylic-acid (PAA) hydrogel layer by a napkin with UV-adhesive. Owing to both the super-hydrophilicity and super-lipophilicity of the cellulose-fiber based napkin, the SMP and the hydrogel can be bonded firmly by the UV-adhesive in the napkin. More importantly, this bilayer hybrid 2D sheet can be programmed by designing a different temporary shape in heat water which can be fixed easily in cool water to achieve various fixed shapes. This hybrid with a fixed temporary shape can achieve complex actuating performance based on the bi-functional synergy of temperature-triggered SMP and pH-responsive hydrogel. The relatively high modulus PU SMP achieved high to 87.19% and 88.92% shape-fixing ratio, respectively, correspond to bending and folding shapes. The hybrid actuator can actuate with the 25.71 °/min actuating speed. Most importantly, one SMP/hydrogel bi-layer hybrid sheet was repeatedly programmed at least nine times in our research to fix various temporary 1D, 2D and 3D shapes, including bending, folding and spiraling shapes. As a result, only one SMP/hydrogel hybrid can provide various complex stimuli-responsive actuations, including the reversable bending-straightening, spiraling-unspiraling. A few of the intelligent devices have been designed to simulate the movement of the natural organisms, such as bio-mimetic "paw", "pangolin" and "octopus". This work has developed a new SMP/hydrogel hybrid with excellent multi-repeatable (≥9 times) programmability for high-level complex actuations, including the 1D to 2D bending and the 2D to 3D spiraling actuations, which also provides a new strategy to design other new soft intelligent materials and systems. [ABSTRACT FROM AUTHOR]
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- 2023
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15. Variations in carbon isotopic composition in the subcontinental lithospheric mantle beneath the Yangtze and North China Cratons: Evidence from in-situ analysis of diamonds using SIMS
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Chen, Hua, Qiu, ZhiLi, Lu, TaiJin, Stern, Richard, Stachel, Thomas, Sun, Yuan, Zhang, Jian, Ke, Jie, Peng, ShuYi, and Qin, SheCai
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- 2013
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16. Childhood Adversity and Adolescent Smartphone Use Across Sexual Orientation and Gender Expression.
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Zheng, Xinyu, Jiang, Weiqing, Peng, Shuyi, Liu, Qianyu, He, Yitong, Huang, Cuihong, Hua, Yilin, Lu, Ciyong, and Guo, Lan
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- 2024
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17. Antibiofouling Ultrathin Poly(amidoxime) Membrane for Enhanced U(VI) Recovery from Wastewater and Seawater.
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Sun, Ye, Liu, Rongrong, Wen, Shunxi, Wang, Jiawen, Chen, Lin, Yan, Bingjie, Peng, Shuyi, Ma, Chao, Cao, Xingyu, Ma, Chunxin, Duan, Gaigai, Wang, Hui, Shi, Se, Yuan, Yihui, and Wang, Ning
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- 2021
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18. Supramolecularly Poly(amidoxime)-Loaded Macroporous Resin for Fast Uranium Recovery from Seawater and Uranium-Containing Wastewater.
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Wen, Shunxi, Sun, Ye, Liu, Rongrong, Chen, Lin, Wang, Jiawen, Peng, Shuyi, Ma, Chunxin, Yuan, Yihui, Gong, Weitao, and Wang, Ning
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- 2021
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19. Identification of differentially expressed genes in pancreatic ductal adenocarcinoma and normal pancreatic tissues based on microarray datasets.
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Liu, Liying, Wang, Siqi, Cen, Chunyuan, Peng, Shuyi, Chen, Yan, Li, Xin, Diao, Nan, Li, Qian, Ma, Ling, and Han, Ping
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INTEGRINS ,HIERARCHICAL clustering (Cluster analysis) ,CALCIUM-binding proteins ,HISTONE deacetylase ,GENES ,PROTEIN-protein interactions - Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a highly aggressive malignant tumor with rapid progression and poor prognosis. In the present study, 11 high-quality microarray datasets, comprising 334 tumor samples and 151 non-tumor samples from the Gene Expression Omnibus, were screened, and integrative meta-analysis of expression data was used to identify gene signatures that differentiate between PDAC and normal pancreatic tissues. Following the identification of differentially expressed genes (DEGs), two-way hierarchical clustering analysis was performed for all DEGs using the gplots package in R software. Hub genes were then determined through protein-protein interaction network analysis using NetworkAnalyst. In addition, functional annotation and pathway enrichment analyses of all DEGs were conducted in the Database for Annotation, Visualization, and Integrated Discovery. The expression levels and Kaplan-Meier analysis of the top 10 upregulated and downregulated genes were verified in The Cancer Genome Atlas. A total of 1,587 DEGs, including 1,004 upregulated and 583 downregulated genes, were obtained by comparing PDAC with normal tissues. Of these, hematological and neurological expressed 1, integrin subunit α2 (ITGA2) and S100 calcium-binding protein A6 (S100A6) were the top upregulated genes, and kinesin family member 1A, Dymeclin and β-secretase 1 were the top downregulated genes. Reverse transcription-quantitative PCR was performed to examine the expression levels of S100A6, KRT19 and GNG7, and the results suggested that S100A6 was significantly upregulated in PDAC compared with normal pancreatic tissues. ITGA2 overexpression was significantly associated with shorter overall survival times, whereas family with sequence similarity 46 member C overexpression was strongly associated with longer overall survival times. In addition, network-based meta-analysis confirmed growth factor receptor-bound protein 2 and histone deacetylase 5 as pivotal hub genes in PDAC compared with normal tissue. In conclusion, the results of the present meta-analysis identified PDAC-related gene signatures, providing new perspectives and potential targets for PDAC diagnosis and treatment. [ABSTRACT FROM AUTHOR]
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- 2019
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20. Amplitude‐dependent damping properties of ramie fiber‐reinforced thermoplastic composites with varying fiber content.
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Chen, Dachuan, Pi, Chaoxiong, Chen, Mingsi, He, Liping, Xia, Fan, and Peng, Shuyi
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- 2019
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21. High-Resolution DWI with Simultaneous Multi-Slice Readout-Segmented Echo Planar Imaging for the Evaluation of Malignant and Benign Breast Lesions.
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Peng, Shuyi, Guo, Yihao, Zhang, Xiaoyong, Tao, Juan, Liu, Jie, Zhu, Wenying, Chen, Leqing, and Yang, Fan
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DIFFUSION magnetic resonance imaging , *RECEIVER operating characteristic curves , *LIKERT scale , *SIGNAL-to-noise ratio , *DIFFUSION coefficients - Abstract
To investigate the feasibility and effectiveness of high-resolution readout-segmented echo planar imaging (rs-EPI), diffusion-weighted imaging (DWI) is used simultaneously with multi-slice (SMS) imaging (SMS rs-EPI) for the differentiation of breast malignant and benign lesions in comparison to conventional rs-EPI on a 3T MR scanner. A total of 102 patients with 113 breast lesions underwent bilateral breast MRI using a prototype SMS rs-EPI sequence and a conventional rs-EPI sequence. Subjective image quality was assessed using a 5-point Likert scale (1 = poor, 5 = excellent). Signal-to-noise ratio (SNR), lesion contrast-to-noise ratio (CNR) and apparent diffusion coefficients (ADC) value of the lesion were measured for comparison. Receiver operating characteristic curve analysis was performed to evaluate the diagnosis performance of ADC, and the corresponding area under curve (AUC) was calculated. The image quality scores in anatomic distortion, lesion conspicuity, sharpness of anatomical details and overall image quality of SMS rs-EPI were significantly higher than those of conventional rs-EPI. CNR was enhanced in the high-resolution SMS rs-EPI acquisition (6.48 ± 1.71 vs. 4.23 ± 1.49; p < 0.001). The mean ADC value was comparable in SMS rs-EPI and conventional rs-EPI (benign 1.45 × 10−3 vs. 1.43 × 10−3 mm2/s, p = 0.702; malignant 0.91 × 10−3 vs. 0.89 × 10−3 mm2/s, p = 0.076). The AUC was 0.957 in SMS rs-EPI and 0.983 in conventional rs-EPI. SMS rs-EPI technique allows for higher spatial resolution and slight reduction of scan time in comparison to conventional rs-EPI, which has potential for better differentiation between malignant and benign lesions of the breast. [ABSTRACT FROM AUTHOR]
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- 2021
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22. Radiomics Analysis of Multi-Phase DCE-MRI in Predicting Tumor Response to Neoadjuvant Therapy in Breast Cancer.
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Peng, Shuyi, Chen, Leqing, Tao, Juan, Liu, Jie, Zhu, Wenying, Liu, Huan, and Yang, Fan
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NEOADJUVANT chemotherapy , *RADIOMICS , *MAGNETIC resonance imaging , *TREATMENT effectiveness , *FEATURE extraction - Abstract
Objective: To explore whether the pretreatment dynamic contrast enhancement magnetic resonance imaging (DCE-MRI) and radiomics signatures were associated with pathologic complete response (pCR) to neoadjuvant therapy (NAT) in breast cancer. Method: A retrospective review of 70 patients with breast invasive carcinomas proved by biopsy between June 2017 and October 2020 (26 patients were pathological complete response, and 44 patients were non-pathological complete response). Within the pre-contrast and five post-contrast dynamic series, a total of 1037 quantitative imaging features were extracted from in each phase. Additionally, the Δfeatures (the difference between the features before and after the comparison) were used for subsequent analysis. The least absolute shrinkage and selection operator (LASSO) regression method was used to select features related to pCR, and then use these features to train multiple machine learning classifiers to predict the probability of pCR for a given patient. The area under the curve (AUC), accuracy, sensitivity, and specificity were calculated to assess the predictive performances of the radiomics model for each of the five phases of time points. Result: Among the five phases, each individual phase performed with AUCs ranging from 0.845 to 0.919 in predicting pCR. The best single phases performance was given by the 3rd phase (AUC = 0.919, sensitivity 0.885, specificity 0.864). 5 of the features have significant differences between pCR and non-pCR groups in each phase, most features reach their maximum or minimum in the 2nd or 3rd phase. Conclusion: The radiomic features extracted from each phase of pre-treatment DCE-MRI possess discriminatory power to predict tumor response. [ABSTRACT FROM AUTHOR]
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- 2021
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23. Evaluation of Breast Galactography Using Digital Breast Tomosynthesis: A Clinical Exploratory Study.
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Tao, Juan, Liao, Hao, Liu, Yuan, Peng, Qingsong, Zhu, Wenying, Peng, Shuyi, Liu, Jie, Chen, Leqing, and Yang, Fan
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TOMOSYNTHESIS ,CONTRAST media ,SENSITIVITY & specificity (Statistics) ,DIGITAL mammography - Abstract
Objectives: To compare the application value of digital breast tomosynthesis (DBT) and full-field digital mammography (FFDM) in breast galactography. Materials and Methods: A total of 128 patients with pathological nipple discharge (PND) were selected to undergo galactography. DBT and FFDM were performed for each patient after injecting the contrast agent; the radiation dose of DBT and FFDM was calculated, and the image quality was evaluated in consensus by two senior breast radiologists. Histopathologic data were found in 49 of the 128 patients. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for both FFDM- and DBT-galactography were calculated using histopathologic results as a reference standard. Data were presented as percentages along with their 95% confidence intervals (CI). Results: The average age of the 128 patients was 46.53 years. The average glandular dose (AGD) of DBT-galactography was slightly higher than that of FFDM-galactography (p < 0.001). DBT-galactography was 30.7% higher than FFDM-galactography in CC view, while DBT-galactography increased by 21.7% compared with FFDM-galactography in ML view. Regarding catheter anatomic distortion, structure detail, and overall image quality groups, DBT scores were higher than FFDM scores, and the differences were significant for all measures (p < 0.05). In 49 patients with pathological nipple discharge, we found that the DBT-galactography had higher sensitivity, specificity, PPV, and NPV (93.3%, 75%, 97.7%, and 50%, respectively) than FFDM-galactography (91.1%, 50%, 95.3%, and 33.3%, respectively). Conclusions: Compared to FFDM-galactography, within the acceptable radiation dose range, DBT-galactography increases the sensitivity and specificity of lesion detection by improving the image quality, providing more confidence for the diagnosis of clinical ductal lesions. [ABSTRACT FROM AUTHOR]
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- 2021
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24. Chinese Urbanization Enters a New Phase.
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PENG SHUYI
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URBANIZATION , *SUSTAINABLE development , *ENVIRONMENTAL protection , *GROSS domestic product ,SOCIAL conditions in China, 2000- - Abstract
The article reports on the issuance of an overall plan by the Chinese government to encourage a new type of urbanization in 2014. The plan placed people first, and attaches greater significance to sustainable development and environmental protection. It states that social and people issues have become a high priority of the urbanization plan, rather than steel or concrete structures and gross domestic product (GDP) growth.
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- 2016
25. Prospects for The Road Ahead.
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Peng Shuyi
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PRESIDENTIAL candidates , *WORLD War II - Abstract
The article mentions the prospects of the collaboration across the political divide stymie populism in France's 2017 presidential race. It further mentions Francois Hollande's decision of not seeking a second term which makes him the first French president not to stand for re-election since World War II. Thus, french Prime Minister Manuel Valls declared his bid in becoming the Socialist party's presidential candidate.
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- 2016
26. A Cause for European Consternation.
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Peng Shuyi
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UNITED States presidential election, 2016 , *NATIONAL security , *INTERNATIONAL relations ,EUROPE-United States relations - Abstract
The article discusses the impact of the result of the U.S. presidential elections to Europe. The author highlights the concern of European countries to the appointment of U.S. President-elect Donald Trump following his statement regarding the values and interest of the country to Europe and its comments towards the North Atlantic Treaty Organization and the European security issues. The criticisms of the European countries on Donald Trump's policies are also presented.
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- 2016
27. Fairness or Efficiency?
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Peng Shuyi
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GLOBALIZATION , *SOCIALISM , *EMPLOYMENT , *EMPLOYEE rights ,FRENCH politics & government - Abstract
The article focuses on the labor issues facing the French government including those being raised by the Nuit Debout (Up All Night) movement, who are expressing dissatisfaction over the government's handling of labor reforms. Topics discussed include increasing pressure on the so-called "French socialism," the government's dilemma in balancing fairness and efficiency and the impact of globalization on the policymaking of France's socialist government.
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- 2016
28. Involvement of M2 macrophages polarization in PM2.5-induced COPD by upregulating MMP12 via IL4/STAT6 pathway.
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Guo X, Yang S, Zhu H, Liu F, Li K, Li G, Lin Y, Yu H, Qiu W, Xu H, Liu Q, Xie X, Sun Y, Zheng P, Chen B, Liu Z, Yuan X, Peng S, Bi X, Yang J, Shao NY, and Dai J
- Abstract
Biomass-related airborne fine particulate matter (PM2.5) is an important risk factor for chronic obstructive pulmonary disease (COPD). Macrophage polarization has been reported to be involved in PM2.5-induced COPD, but the dynamic characteristics and underlying mechanism of this process remain unclear. Our study established a PM2.5-induced COPD mouse model and revealed that M2 macrophages predominantly presented after 4 and 6 months of PM2.5 exposure, during which a notable increase in MMP12 was observed. Single cell analysis of lung tissues from COPD patients and mice further revealed that M2 macrophages were the dominant macrophage subpopulation in COPD, with MMP12 being involved as a hub gene. In vitro experiments further demonstrated that PM2.5 induced M2 polarization and increased MMP12 expression. Moreover, we found that PM2.5 increased IL-4 expression, STAT6 phosphorylation and nuclear translocation. Nuclear pSTAT6 then bound to the MMP12 promoter region. Furthermore, the inhibition of STAT6 phosphorylation effectively abrogated the PM2.5-induced increase in MMP12. Using a coculture system, we observed a significantly reduced level of E-cadherin in alveolar epithelial cells cocultured with PM2.5-exposed macrophages, while the decrease in E-cadherin was reversed by the addition of an MMP12 inhibitor to the co-culture system. Taken together, these findings indicated that PM2.5 induced M2 macrophage polarization and MMP12 upregulation via the IL-4/STAT6 pathway, which resulted in alveolar epithelial barrier dysfunction and excessive extracellular matrix (ECM) degradation, and ultimately led to COPD progression. These findings may help to elucidate the role of macrophages in COPD, and suggest promising directions for potential therapeutic strategies., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2024
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29. Rare Recurrent Giant Frontal Osteoma With Skin Multiple Keratinous Cysts and Multinucleated Giant Cell Granulomas.
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Deng H, Peng S, Wu F, An R, and Wang J
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- Humans, Female, Adult, Giant Cells pathology, Granuloma pathology, Frontal Sinus surgery, Epidermal Cyst pathology, Osteoma surgery, Paranasal Sinus Neoplasms surgery
- Abstract
Background: Osteoma is the most common benign tumor of the craniomaxillofacial region. Its etiology remains unclear, and the computed tomography and histopathologic examination contribute to its diagnosis. There are very rare reports of recurrence and malignant transformation after surgical resection. Furthermore, giant frontal osteomas that occurred repeatedly and were accompanied by skin multiple keratinous cysts and multinucleated giant cell granulomas have not been reported in previous literature., Methods: The previous cases of recurrent frontal osteoma in the literature and all cases of frontal osteoma in our department in the last 5 years were reviewed., Results: A total of 17 cases of frontal osteoma (mean age 40 y, all female) were reviewed in our department. All patients underwent open surgery to remove the frontal osteoma, and no evidence of complications was found during postoperative follow-up. Two patients underwent 2 or more operations due to the recurrence of osteoma., Conclusions: Two cases of recurrent giant frontal osteoma were reviewed emphatically in this study, including 1 case of giant frontal osteoma with skin multiple keratinous cysts and multinucleated giant cell granulomas. As far as we know, this is the first giant frontal osteoma that occurred repeatedly and was accompanied by skin multiple keratinous cysts and multinucleated giant cell granulomas., Competing Interests: The authors report no conflicts of interest., (Copyright © 2023 by Mutaz B. Habal, MD.)
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- 2023
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30. Stability of SARS-CoV-2 in cold-chain transportation environments and the efficacy of disinfection measures.
- Author
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Peng S, Li G, Lin Y, Guo X, Xu H, Qiu W, Zhu H, Zheng J, Sun W, Hu X, Zhang G, Li B, Pathak JL, Bi X, and Dai J
- Subjects
- Humans, Refrigeration, Disinfection, Stainless Steel, Plastics, Polytetrafluoroethylene, Polyethylenes, SARS-CoV-2, COVID-19 prevention & control
- Abstract
Background: Low temperature is conducive to the survival of COVID-19. Some studies suggest that cold-chain environment may prolong the survival of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and increase the risk of transmission. However, the effect of cold-chain environmental factors and packaging materials on SARS-CoV-2 stability remains unclear., Methods: This study aimed to reveal cold-chain environmental factors that preserve the stability of SARS-CoV-2 and further explore effective disinfection measures for SARS-CoV-2 in the cold-chain environment. The decay rate of SARS-CoV-2 pseudovirus in the cold-chain environment, on various types of packaging material surfaces, i.e., polyethylene plastic, stainless steel, Teflon and cardboard, and in frozen seawater was investigated. The influence of visible light (wavelength 450 nm-780 nm) and airflow on the stability of SARS-CoV-2 pseudovirus at -18°C was subsequently assessed., Results: Experimental data show that SARS-CoV-2 pseudovirus decayed more rapidly on porous cardboard surfaces than on nonporous surfaces, including polyethylene (PE) plastic, stainless steel, and Teflon. Compared with that at 25°C, the decay rate of SARS-CoV-2 pseudovirus was significantly lower at low temperatures. Seawater preserved viral stability both at -18°C and with repeated freeze-thaw cycles compared with that in deionized water. Visible light from light-emitting diode (LED) illumination and airflow at -18°C reduced SARS-CoV-2 pseudovirus stability., Conclusion: Our studies indicate that temperature and seawater in the cold chain are risk factors for SARS-CoV-2 transmission, and LED visible light irradiation and increased airflow may be used as disinfection measures for SARS-CoV-2 in the cold-chain environment., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Peng, Li, Lin, Guo, Xu, Qiu, Zhu, Zheng, Sun, Hu, Zhang, Li, Pathak, Bi and Dai.)
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- 2023
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31. Progress of Nanomaterials in Photodynamic Therapy Against Tumor.
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Chen L, Huang J, Li X, Huang M, Zeng S, Zheng J, Peng S, and Li S
- Abstract
Photodynamic therapy (PDT) is an advanced therapeutic strategy with light-triggered, minimally invasive, high spatiotemporal selective and low systemic toxicity properties, which has been widely used in the clinical treatment of many solid tumors in recent years. Any strategies that improve the three elements of PDT (light, oxygen, and photosensitizers) can improve the efficacy of PDT. However, traditional PDT is confronted some challenges of poor solubility of photosensitizers and tumor suppressive microenvironment. To overcome the related obstacles of PDT, various strategies have been investigated in terms of improving photosensitizers (PSs) delivery, penetration of excitation light sources, and hypoxic tumor microenvironment. In addition, compared with a single treatment mode, the synergistic treatment of multiple treatment modalities such as photothermal therapy, chemotherapy, and radiation therapy can improve the efficacy of PDT. This review summarizes recent advances in nanomaterials, including metal nanoparticles, liposomes, hydrogels and polymers, to enhance the efficiency of PDT against malignant tumor., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2022 Chen, Huang, Li, Huang, Zeng, Zheng, Peng and Li.)
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- 2022
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32. Comparison of Residual Pulmonary Abnormalities 3 Months After Discharge in Patients Who Recovered From COVID-19 of Different Severity.
- Author
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Zhou M, Xu J, Liao T, Yin Z, Yang F, Wang K, Wang Z, Yang D, Wang S, Peng Y, Peng S, Wu F, Chen L, and Jin Y
- Abstract
Background and Objectives: To investigate whether coronavirus disease 2019 (COVID-19) survivors who had different disease severities have different levels of pulmonary sequelae at 3 months post-discharge. Methods: COVID-19 patients discharged from four hospitals 3 months previously, recovered asymptomatic patients from an isolation hotel, and uninfected healthy controls (HCs) from the community were prospectively recruited. Participants were recruited at Wuhan Union Hospital and underwent examinations, including quality-of-life evaluation (St. George Respiratory Questionnaire [SGRQ]), laboratory examination, chest computed tomography (CT) imaging, and pulmonary function tests. Results: A total of 216 participants were recruited, including 95 patients who had recovered from severe/critical COVID-19 (SPs), 51 who had recovered from mild/moderate disease (MPs), 28 who had recovered from asymptomatic disease (APs), and 42 HCs. In total, 154 out of 174 (88.5%) recovered COVID-19 patients tested positive for serum SARS-COV-2 IgG, but only 19 (10.9%) were still positive for IgM. The SGRQ scores were highest in the SPs, while APs had slightly higher SGRQ scores than those of HCs; 85.1% of SPs and 68.0% of MPs still had residual CT abnormalities, mainly ground-glass opacity (GGO) followed by strip-like fibrosis at 3 months after discharge, but the pneumonic lesions were largely absorbed in the recovered SPs or MPs relative to findings in the acute phase. Pulmonary function showed that the frequency of lung diffusion capacity for carbon monoxide abnormalities were comparable in SPs and MPs (47.1 vs. 41.7%), while abnormal total lung capacity (TLC) and residual volume (RV) were more frequent in SPs than in MPs (TLC, 18.8 vs. 8.3%; RV, 11.8 vs. 0%). Conclusions: Pulmonary abnormalities remained after recovery from COVID-19 and were more frequent and conspicuous in SPs at 3 months after discharge., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Zhou, Xu, Liao, Yin, Yang, Wang, Wang, Yang, Wang, Peng, Peng, Wu, Chen and Jin.)
- Published
- 2021
- Full Text
- View/download PDF
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