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Deng Y, Song L, Huang J, Zhou W, Liu Y, Lu X, Zhao H, Liu D. Astragalus polysaccharides ameliorates experimental colitis by regulating memory B cells metabolism. Chem Biol Interact 2024; 394:110969. [PMID: 38522565 DOI: 10.1016/j.cbi.2024.110969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/17/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
It is well-established that the reduced Memory B cells (MBCs) play an important role in the pathogenesis of ulcerative colitis (UC), rendering them a potential therapeutic target for UC intervention. Astragalus polysaccharide (APS), a primary active constituent derived from the classic traditional Chinese medicine Astragalus membranaceus (AM), has been used for centuries in the treatment of UC in both human and animal subjects due to its renowned immunomodulatory properties. However, it is unknown whether APS can regulate MBCs to alleviate experimental colitis. In the present investigation, the murine colitis was successfully induced using dextran sulphate sodium (DSS) and subsequently treated with APS for a duration of 7 days. APS exhibited significant efficacy in reducing the disease activity index (DAI), colonic weight index, the index of colonic weight/colonic length. Furthermore, APS mitigated colonic pathological injuries, restored the colonic length, elevated the immunoglobulin A (IgA), transforming growth factor-β1 (TGF-β1) and interleukin (IL)-10 levels, while concurrently suppressing IgG, IgM, IL-6, tumor necrosis factor alpha (TNF-α) levels. Crucially, the quantities of MBCs, IgA+MBCs and forkhead box P3 (Foxp3+) MBCs were notably increased along with a concurrent decrease in IgG1+MBCs, IG2a+MBCs, IgG2b+MBCs after APS administration in colitis mice. Additionally, the Mitotracker red expressions of MBCs and their subgroups demonstrated a significantly up-regulation. Meanwhile, the transcriptomics analysis identified mitochondrial metabolism as the predominant and pivotal mechanism underlying APS-mediated mitigation of DSS-induced colitis. Key differentially expressed genes, including B-cell linker (BLNK), aldehyde dehydrogenase 1A1 (ALDH1A1), B-cell lymphoma 6 (BCL-6), B-lymphocyte-induced maturation protein 1 (Blimp-1), paired box gene 5 (PAX5), purinergic 2 × 7 receptor (P2X7R), B Cell activation factor (BAFF), B Cell activation factor receptor (BAFFR), CD40, nuclear factor kappa-B (NF-κB), IL-6 and so on were implicated in this process. These mRNA expressions were validated through quantitative polymerase chain reaction (qPCR) and immunohistochemistry. These findings revealed that APS effectively restored MBCs and their balance to ameliorate DSS-induced colitis, which was potentially realized via promoting mitochondrial metabolism to maintain MBCs activation.
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Affiliation(s)
- Yifei Deng
- Clinical Medical School, Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China
| | - Lizhao Song
- Department of Postgraduate, Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China
| | - Jiaqi Huang
- Department of Postgraduate, Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China
| | - Wen Zhou
- Nanchang Medical College, Nanchang, 330052, Jiangxi Province, China
| | - Yali Liu
- Nanchang Medical College, Nanchang, 330052, Jiangxi Province, China
| | - Xiuyun Lu
- Nanchang Medical College, Nanchang, 330052, Jiangxi Province, China.
| | - Haimei Zhao
- College of Traditional Chinese Medicine, Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China; Formula-Pattern Research Center of Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China.
| | - Duanyong Liu
- Formula-Pattern Research Center of Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China; School of Nursing, Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi Province, China.
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Nguyen T, Dutton JL, Chang CY, Zhou W, Piers WE. Direct C-H electrophilic borylation with (C 6F 5) 2B-NTf 2 to generate B-N dibenzo[ a, h]pyrenes. Dalton Trans 2024; 53:7273-7281. [PMID: 38487875 DOI: 10.1039/d4dt00469h] [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: 05/01/2024]
Abstract
The borylation of aryl substituted pyridines is an effective way of preparing B-N doped conjugated organic frameworks. Trihaloborane Lewis acids are often employed for this protocol, and may require further functionalization to replace the remaining halides on boron. We report a new, fully characterized, electrophilic borylating agent, (C6F5)2B(κ2-NTf2), that smoothly incorporates a -B(C6F5)2 unit into the model substrate 2-phenylpyridine. To demonstrate its utility in preparing more complex B-N doped structures, we use it to prepare seven examples of the 6a,13a-diaza-7,14-dibora-dibenzo[a,h]pyrene framework, with substituents of varying donor properties. The structural, redox, and photophysical properties of this new family of B-N doped polycyclic hydrocarbon compounds were probed experimentally and computationally.
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Affiliation(s)
- Tony Nguyen
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
| | - Jason L Dutton
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
- Department of Biochemistry and Chemistry, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Chia Yun Chang
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
| | - Wen Zhou
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
| | - Warren E Piers
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada.
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Fu ZH, Zhou W, Xie SP, Zhang R, Wang X. Dynamic pathway linking Pakistan flooding to East Asian heatwaves. Sci Adv 2024; 10:eadk9250. [PMID: 38657060 PMCID: PMC11042738 DOI: 10.1126/sciadv.adk9250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 03/21/2024] [Indexed: 04/26/2024]
Abstract
In July to August 2022, Pakistan suffered historic flooding while record-breaking heatwaves swept southern China, causing severe socioeconomic impacts. Similar extreme events have frequently coincided between two regions during the past 44 years, but the underlying mechanisms remain unclear. Using observations and a suite of model experiments, here, we show that the upper-tropospheric divergent wind induced by convective heating over Pakistan excites a barotropic anomalous anticyclone over eastern China, which further leads to persistent heatwaves. Atmospheric model ensemble simulation indicates that this dynamic pathway linking Pakistan flooding and East Asian heatwaves is intrinsic to the climate system, largely independent of global sea surface temperature forcing. This dynamic connection is most active during July to August when convective variability is large over Pakistan and the associated divergent flow excites barotropic Rossby waves that propagate eastward along the upper troposphere westerly waveguide. This robust waveguide and the time delay offer hopes for improved subseasonal prediction of extreme events in East Asia.
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Affiliation(s)
- Zheng-Hang Fu
- Key Laboratory of Polar Atmosphere-ocean-ice System for Weather and Climate, Ministry of Education, Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences, Fudan University, Shanghai, China
| | - Wen Zhou
- Key Laboratory of Polar Atmosphere-ocean-ice System for Weather and Climate, Ministry of Education, Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences, Fudan University, Shanghai, China
- Key Laboratory for Polar Science of the MNR, Polar Research Institute of China, Shanghai, China
| | - Shang-Ping Xie
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA
| | - Ruhua Zhang
- Key Laboratory of Polar Atmosphere-ocean-ice System for Weather and Climate, Ministry of Education, Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences, Fudan University, Shanghai, China
| | - Xudong Wang
- Key Laboratory of Polar Atmosphere-ocean-ice System for Weather and Climate, Ministry of Education, Department of Atmospheric and Oceanic Sciences & Institute of Atmospheric Sciences, Fudan University, Shanghai, China
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4
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Long Q, Zhou W, Zhou H, Tang Y, Chen W, Liu Q, Bian X. Polyamine-containing natural products: structure, bioactivity, and biosynthesis. Nat Prod Rep 2024; 41:525-564. [PMID: 37873660 DOI: 10.1039/d2np00087c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Covering: 2005 to August, 2023Polyamine-containing natural products (NPs) have been isolated from a wide range of terrestrial and marine organisms and most of them exhibit remarkable and diverse activities, including antimicrobial, antiprotozoal, antiangiogenic, antitumor, antiviral, iron-chelating, anti-depressive, anti-inflammatory, insecticidal, antiobesity, and antioxidant properties. Their extraordinary activities and potential applications in human health and agriculture attract increasing numbers of studies on polyamine-containing NPs. In this review, we summarized the source, structure, classification, bioactivities and biosynthesis of polyamine-containing NPs, focusing on the biosynthetic mechanism of polyamine itself and representative polyamine alkaloids, polyamine-containing siderophores with catechol/hydroxamate/hydroxycarboxylate groups, nonribosomal peptide-(polyketide)-polyamine (NRP-(PK)-PA), and NRP-PK-long chain poly-fatty amine (lcPFAN) hybrid molecules.
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Affiliation(s)
- Qingshan Long
- Hunan Provincial Engineering and Technology Research Center for Agricultural Microbiology Application, Hunan Institute of Microbiology, Changsha, 410009, China.
| | - Wen Zhou
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural, Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Haibo Zhou
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China.
| | - Ying Tang
- Hunan Provincial Engineering and Technology Research Center for Agricultural Microbiology Application, Hunan Institute of Microbiology, Changsha, 410009, China.
| | - Wu Chen
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China.
| | - Qingshu Liu
- Hunan Provincial Engineering and Technology Research Center for Agricultural Microbiology Application, Hunan Institute of Microbiology, Changsha, 410009, China.
| | - Xiaoying Bian
- Helmholtz International Lab for Anti-Infectives, Shandong University-Helmholtz Institute of Biotechnology, State Key Laboratory of Microbial Technology, Shandong University, Qingdao, 266237, China.
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Kidd SR, Zhou W, Warren JJ, Leznoff DB. Inducing ring distortions in unsubstituted metallophthalocyanines using axial N-heterocyclic carbenes. Dalton Trans 2024; 53:6537-6546. [PMID: 38498318 DOI: 10.1039/d4dt00528g] [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: 03/20/2024]
Abstract
A series of metallophthalocyanine (PcM) complexes with axial N-heterocyclic carbene ligands (NHC; 1,3-diisopropylimidazol-2-ylidene (DIP) and 1,3-dimethylbenzimidazol-2-ylidene (DMB)) were prepared and structurally characterized. PcCoII(DIP), PcZnII(DIP), and PcZnII(DMB) are five-coordinate complexes with mild dome-type Pc-ring distortions, while PcFeII(DIP)2 is six-coordinate and has a very large ruffle-type ring-distortion with respect to typical PcM(L)2 systems. The distortion is induced by the highly steric axial DIP ligands. The distortions were quantified and classified by their bond lengths and torsion angles, and according to the normal-coordinate structural decomposition (NSD) analysis. Upon ligation of the NHC, the insoluble PcM materials were solublized in common organic solvents, with typical UV-visible Q-band maxima observable between 658 and 677 nm; the increased solubility is rationalized in terms of the reduced solid-state aggregation of the complexes, attributable to the axial ligation.
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Affiliation(s)
- Steven R Kidd
- Simon Fraser University, Department of Chemistry, 8888 University Drive, Burnaby BC V5A 1S6, Canada.
| | - Wen Zhou
- Simon Fraser University, Department of Chemistry, 8888 University Drive, Burnaby BC V5A 1S6, Canada.
| | - Jeffrey J Warren
- Simon Fraser University, Department of Chemistry, 8888 University Drive, Burnaby BC V5A 1S6, Canada.
| | - Daniel B Leznoff
- Simon Fraser University, Department of Chemistry, 8888 University Drive, Burnaby BC V5A 1S6, Canada.
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Chen Y, Zhou W, Liu J, Li X, Fu W, Ma B, Liang Z, Yang K, Zhang L, Zhang Y. Tracking the effects of PLGA-based nanoparticles on protein expression in living cells through quantitative proteomics. J Mater Chem B 2024. [PMID: 38602378 DOI: 10.1039/d3tb01881d] [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: 04/12/2024]
Abstract
Mass spectrometry (MS)-based proteomics can identify and quantify the differential abundance of expressed proteins in parallel, and bottom-up proteomic approaches are even approaching comprehensive coverage of the complex eukaryotic proteome. Protein-nanoparticle (NP) interactions have been extensively studied owing to their importance in biological applications and nanotoxicology. However, the proteome-level effects of NPs on cells have received little attention, although changes in protein abundance can reflect the direct effects of nanocarriers on protein expression. Herein, we investigated the effect of PLGA-based NPs on protein expression in HepG2 cells using a label-free quantitative proteomics approach with data independent acquisition (DIA). The percentage of two-fold change in the protein expression of cells treated with PLGA-based NPs was less than 10.15% during a 6 hour observation period. Among the changed proteins, we found that dynamic proteins involved in cell division, localization, and transport are more likely to be more susceptible to PLGA-based NPs.
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Affiliation(s)
- Yuwan Chen
- State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wen Zhou
- State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianhui Liu
- State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Xinwei Li
- State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, China
| | - Wenxin Fu
- State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
- Research Center for Analytical Sciences, Northeastern University, Shenyang 110819, China
| | - Baofu Ma
- State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhen Liang
- State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Kaiguang Yang
- State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Lihua Zhang
- State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Yukui Zhang
- State Key Laboratory of Medical Proteomics, National Chromatographic R. & A. Center, CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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Zhou W, Wu T, Tao X. Exploring the spatial and seasonal heterogeneity of cooling effect of an urban river on a landscape scale. Sci Rep 2024; 14:8327. [PMID: 38594340 PMCID: PMC11004010 DOI: 10.1038/s41598-024-58879-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 04/04/2024] [Indexed: 04/11/2024] Open
Abstract
Urban water bodies can effectively mitigate the urban heat island effect and thus enhance the climate resilience of urban areas. The cooling effect of different water bodies varies, however, the cooling heterogeneity of different sections of a single watercourse or river network is rarely considered. Based on various satellite images, geospatial approaches and statistical analyses, our study confirmed the cooling heterogeneity from spatial and seasonal perspectives of the Suzhou Outer-city River in detail in the urban area of Suzhou, China. The cooling effect of the river was observed in the daytime in four seasons, and it is strongest in summer, followed by spring and autumn, and weakest in winter. The combination of the width of the river reach, the width and the NDVI value of the adjacent green space can explain a significant part of the cooling heterogeneity of the different river sections in different seasons. Land surface temperature (LST) variations along the river are more related to the width of the river reach, but the variations of the cooling distance are more related to the adjacent green space. The cooling effect of a river reach could be enhanced if it is accompanied by green spaces. In addition, the cooling effect of a looping river is stronger on the inside area than on the outside. The methodology and results of this study could help orient scientific landscape strategies in urban planning for cooler cities.
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Affiliation(s)
- Wen Zhou
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, 225000, China.
| | - Tao Wu
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, 225000, China
| | - Xin Tao
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, 225000, China
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Almquist CC, Rajeshkumar T, Jayaweera HDAC, Removski N, Zhou W, Gelfand BS, Maron L, Piers WE. Oxidation-induced ambiphilicity triggers N-N bond formation and dinitrogen release in octahedral terminal molybdenum(v) nitrido complexes. Chem Sci 2024; 15:5152-5162. [PMID: 38577349 PMCID: PMC10988598 DOI: 10.1039/d4sc00090k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/16/2024] [Indexed: 04/06/2024] Open
Abstract
Coupling of octahedral, terminal d1 molybdenum(v) nitrido complexes supported by a dianionic pentadentate ligand via N-N bond formation to give μ-dinitrogen complexes was found to be thermodynamically feasible but faces significant kinetic barriers. However, upon oxidation, a kinetically favored nucleophilic/electrophilic N-N bond forming mechanism was enabled to give monocationic μ-dinitrogen dimers. Computational and experimental evidence for this "oxidation-induced ambiphilic nitrido coupling" mechanism is presented. The factors influencing release of dinitrogen from the resulting μ-dinitrogen dimers were also probed and it was found that further oxidation to a dicationic species is required to induce (very rapid) loss of dinitrogen. The mechanistic path discovered for N-N bond formation and dinitrogen release follows an ECECC sequence (E = "electrochemical step"; C = "chemical step"). Experimental evidence for the intermediacy of a highly electrophilic, cationic d0 molybdenum(vi) nitrido in the N-N bond forming mechanism via trapping with an isonitrile reagent is also discussed. Together these results are relevant to the development of molecular catalysts capable of mediating ammonia oxidation to dihydrogen and dinitrogen.
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Affiliation(s)
- C Christopher Almquist
- Department of Chemistry, University of Calgary 2500 University Drive NW Calgary Alberta T2N 1N4 Canada
| | | | - H D A Chathumal Jayaweera
- Department of Chemistry, University of Calgary 2500 University Drive NW Calgary Alberta T2N 1N4 Canada
| | - Nicole Removski
- Department of Chemistry, University of Calgary 2500 University Drive NW Calgary Alberta T2N 1N4 Canada
| | - Wen Zhou
- Department of Chemistry, University of Calgary 2500 University Drive NW Calgary Alberta T2N 1N4 Canada
| | - Benjamin S Gelfand
- Department of Chemistry, University of Calgary 2500 University Drive NW Calgary Alberta T2N 1N4 Canada
| | - Laurent Maron
- LPCNO, Université de Toulouse, INSA UPS Toulouse France
| | - Warren E Piers
- Department of Chemistry, University of Calgary 2500 University Drive NW Calgary Alberta T2N 1N4 Canada
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Zhou W, Feng X, Wang Z, Zhu D, Chu J, Zhu X, Hu Y, Tian G. Superhydrophobic Surfaces with Excellent Ice Prevention and Drag Reduction Properties Inspired by Iridaceae Leaf. Langmuir 2024; 40:7192-7204. [PMID: 38503714 DOI: 10.1021/acs.langmuir.4c00333] [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] [Indexed: 03/21/2024]
Abstract
The anti-icing and drag-reduction properties of diverse microstructured surfaces have undergone extensive study over the past decade. Nonetheless, tough environments enforce stringent demands on the composite characteristics of superhydrophobic surfaces (SHS). In this study, fresh composite structures were fabricated on a metal substrate by nanosecond laser machining technology, drawing inspiration from the hardy plant Iridaceae. The prepared sample surface mainly consists of a periodic microrhombus array and irregular nanosheets. To comprehensively investigate the effect of its special structure on surface properties, three surfaces with different sizes of rhombic structures were used for comparative analysis, and the results show that the SH-S2 sample is optimal. This can significantly delay the freezing time by an impressive 1404 s at -10 °C while revealing the sample surface anti-icing strategy. In addition, the rheological experiments determined over 300 μm of slip length for the SH-S2 sample, and the drag reduction rate of the surface reaches nearly 40%, which is well aligned with the results of the delayed icing experiments. Finally, the mechanical durability of the SH-S2 surface was investigated through scratch damage, sandpaper abrasion, reparability trials, and icing and melting cycle tests. This research presents a new approach and methodology for the application of SHS on polar ship surfaces.
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Affiliation(s)
- Wen Zhou
- College of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Xiaoming Feng
- College of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Zhizhong Wang
- College of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Dongpo Zhu
- College of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Jiahui Chu
- College of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Xiaohui Zhu
- College of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Yuxue Hu
- College of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Guizhong Tian
- College of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
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Tang L, Zhou W, Bai L, Wu C, Xiong C, Yan Y, Chen S. Comparison of diagnostic performance of X‑ray, CT and MRI in patients with surgically confirmed subtle Lisfranc injuries. Exp Ther Med 2024; 27:174. [PMID: 38476900 PMCID: PMC10928826 DOI: 10.3892/etm.2024.12462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 02/02/2024] [Indexed: 03/14/2024] Open
Abstract
The present study aimed to compare the diagnostic performance of three imaging tests: X-ray, computed tomography (CT) and magnetic resonance imaging (MRI), for subtle Lisfranc injuries and three anatomical subtype injuries. The non-weight-bearing X-ray, CT and MRI imaging results of patients with subtle Lisfranc injuries from September 2013 to March 2022 were retrospectively reviewed. Subtle Lisfranc injuries and three anatomical subtypes (first, second and cuneiform rays) were diagnosed based on the surgical reports. The diagnostic performance of X-ray, CT and MRI was compared. The sensitivity (Sn), specificity (Sp), positive predictive value, negative predictive value, area under the receiver operating characteristic curve (AUC) and κ coefficient were reported. A total of 31 patients were included in the study. The correct diagnosis was made in 48.4% (15/31), 87.1% (27/31) and 96.8% (30/31) of patients by X-ray, CT and MRI, respectively. A total of 54 different anatomical injuries were found intraoperatively in all patients, with MRI and CT having high agreement (Sn, 72.2 and 87.0%; κ, 0.69 and 0.78, respectively) and X-ray having a low agreement (Sn, 29.6%; κ, 0.26) with the surgical findings. Regarding the first-ray injuries, CT had the highest Sn (76.9%), Sp (100%) and AUC (0.885) in diagnosing subtle Lisfranc injuries. MRI showed the best Sn (88.5 and 93.3%, respectively) and AUC (0.942 and 0.904, respectively) in both second and cuneiform rays. In conclusion, non-weight-bearing X-rays had poor diagnostic accuracy for subtle Lisfranc injuries and their subtypes. CT was superior to X-rays and MRI in diagnosing first-ray injuries. Although not significantly different from CT in terms of overall diagnosis, MRI was superior to X-ray and CT in diagnosing second and cuneiform-ray injuries.
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Affiliation(s)
- Lubo Tang
- Department of Sports Medicine, Shenzhen Hospital of Peking University, Shenzhen, Guangdong 518036, P.R. China
| | - Wen Zhou
- Department of Medical Imaging, Shenzhen Hospital of Peking University, Shenzhen, Guangdong 518036, P.R. China
| | - Lu Bai
- Department of Sports Medicine, Shenzhen Hospital of Peking University, Shenzhen, Guangdong 518036, P.R. China
| | - Chenxi Wu
- Department of Sports Medicine, Shenzhen Hospital of Peking University, Shenzhen, Guangdong 518036, P.R. China
| | - Changyue Xiong
- Department of Sports Medicine, Shenzhen Hospital of Peking University, Shenzhen, Guangdong 518036, P.R. China
| | - Yuxin Yan
- Department of Sports Medicine, Shenzhen Hospital of Peking University, Shenzhen, Guangdong 518036, P.R. China
| | - Sumeng Chen
- Department of Sports Medicine, Shenzhen Hospital of Peking University, Shenzhen, Guangdong 518036, P.R. China
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Chen H, Wang L, Zhao X, Jiang H, Wu M, Ding Y, Jia X, Zhang Y, Li T, Zhang Y, Zhou W, Zheng P, Yang Y, Du J. A Polymer-Based Antigen Carrier Activates Two Innate Immune Pathways for Adjuvant-Free Subunit Vaccines. ACS Nano 2024; 18:9160-9175. [PMID: 38478910 DOI: 10.1021/acsnano.4c00925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
The activation of multiple Pattern Recognition Receptors (PRRs) has been demonstrated to trigger inflammatory responses and coordinate the host's adaptive immunity during pathogen infections. The use of PRR agonists as vaccine adjuvants has been reported to synergistically induce specific humoral and cellular immune responses. However, incorporating multiple PRR agonists as adjuvants increases the complexity of vaccine design and manufacturing. In this study, we discovered a polymer that can activate both the Toll-like receptor (TLR) pathway and cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) pathway. The polymer was then conjugated to protein antigens, creating an antigen delivery system for subunit vaccines. Without additional adjuvants, the antigen-polymer conjugates elicited strong antigen-specific humoral and cellular immune responses. Furthermore, the antigen-polymer conjugates, containing the Receptor Binding Domain (RBD) of the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Spike Protein or the Monkeypox Antigen M1R as the antigens, were found to induce potent antigen-specific antibodies, neutralizing antibodies, and cytotoxic T cells. Immunization with M1R-polymer also resulted in effective protection in a lethal challenge model. In conclusion, this vaccine delivery platform offers an effective, safe, and simple strategy for inducing antigen-specific immunity against infectious diseases.
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Affiliation(s)
- Hang Chen
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Luyao Wang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Xiaofan Zhao
- Beijing Institute of Biotechnology, Beijing 100071, China
| | - Haolin Jiang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
- Academy for Advanced Interdisciplinary Studies (AAIS), Peking University-Tsinghua University-National Institute Biological Sciences (PTN) Joint Graduate Program, Peking University, Beijing 100871, China
| | - Mengling Wu
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Yanchao Ding
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Xiangqian Jia
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Yaning Zhang
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Tiantian Li
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Yue Zhang
- Beijing Institute of Biotechnology, Beijing 100071, China
| | - Wen Zhou
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Peiyuan Zheng
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
| | - Yilong Yang
- Beijing Institute of Biotechnology, Beijing 100071, China
| | - Juanjuan Du
- School of Pharmaceutical Sciences, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Tsinghua University, Beijing 100084, China
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Ay B, Cyr SM, Klovdahl K, Zhou W, Tognoni CM, Iwasaki Y, Rhee EP, Dedeoglu A, Simic P, Bastepe M. Ga11 deficiency increases fibroblast growth factor-23 levels in a mouse model of Familial Hypocalciuric Hypercalcemia. JCI Insight 2024:e178993. [PMID: 38530370 DOI: 10.1172/jci.insight.178993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024] Open
Abstract
Fibroblast Growth Factor 23 (FGF23) production has recently been shown to increase downstream of G⍺q/11-PKC signaling in osteocytes. Inactivating mutations in the gene encoding G⍺11 (GNA11) cause familial hypocalciuric hypercalcemia (FHH) due to impaired calcium-sensing receptor signaling. We explored the impact of G⍺11 deficiency on FGF23 production in mice with heterozygous (Gna11+/-) or homozygous (Gna11-/-) ablation of Gna11. Both Gna11+/- and Gna11-/- mice demonstrated hypercalcemia and mildly raised parathyroid hormone levels, consistent with FHH. Strikingly, these mice also displayed increased serum levels of total and intact FGF23 and hypophosphatemia. Gna11-/- mice showed augmented Fgf23 mRNA levels in the liver and heart, but not in bone or bone marrow, and evidence of systemic inflammation with elevated serum IL1β levels. Furin gene expression was significantly increased in the Gna11-/- liver, suggesting enhanced FGF23 cleavage despite the observed rise in intact FGF23 levels. Gna11-/- mice had normal renal function and reduced serum levels of glycerol-3-phosphate, excluding kidney injury as the primary cause of elevated intact FGF23 levels. Thus, G⍺11 ablation caused systemic inflammation and excess serum FGF23 in mice, suggesting that FHH patients, at least those with GNA11 mutations, may be at risk for these complications.
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Affiliation(s)
- Birol Ay
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, United States of America
| | - Sajin Marcus Cyr
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, United States of America
| | - Kaitlin Klovdahl
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, United States of America
| | - Wen Zhou
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, United States of America
| | - Christina M Tognoni
- Department of Neurology, Boston University School of Medicine, Boston, United States of America
| | - Yorihiro Iwasaki
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, United States of America
| | - Eugene P Rhee
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, United States of America
| | - Alpaslan Dedeoglu
- Department of Neurology, Boston University School of Medicine, Boston, United States of America
| | - Petra Simic
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, United States of America
| | - Murat Bastepe
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, United States of America
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13
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Liu W, Zhou W, Zhang Y, Ge X, Qi W, Lin T, Cao Q, Cao L. Strictureplasty may lead to increased preference in the surgical management of Crohn's disease: a case-matched study. Tech Coloproctol 2024; 28:40. [PMID: 38507096 DOI: 10.1007/s10151-024-02915-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 03/05/2024] [Indexed: 03/22/2024]
Abstract
BACKGROUND Resection and strictureplasty are the two surgical modalities used in the management of Crohn's disease (CD). The objective of this study was to compare morbidity and clinical recurrence between patients who underwent strictureplasty and patients who underwent resection. METHODS Patients with CD who underwent strictureplasty between January 2012 and December 2022 were enrolled. The patients were well matched with patients who underwent resection without strictureplasty. Patient- and disease-specific characteristics, postoperative morbidity, and clinical recurrence were also analyzed. RESULTS A total of 118 patients who underwent a total of 192 strictureplasties were well matched to 118 patients who underwent resection. The strictureplasty group exhibited significantly less blood loss (30 ml versus 50 ml, p < 0.001) and stoma creation (2.5% versus 16.9%, p < 0.001). No significant difference was found regarding postoperative complications or length of postoperative stay. At the end of the follow-up, the overall rate of clinical recurrence was 39.4%, and no difference was observed between the two groups. Postoperative prophylactic use of biologics (odds ratio = 0.2, p < 0.001) was the only protective factor against recurrence. CONCLUSION Strictureplasty does not increase the risk of complications or recurrence compared with resection. It represents a viable alternative to resection in selected patients, and as such, it should have a broader scope of indications and greater acceptance among surgeons.
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Affiliation(s)
- W Liu
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, People's Republic of China
- Inflammatory Bowel Disease Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - W Zhou
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, People's Republic of China.
- Inflammatory Bowel Disease Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China.
| | - Y Zhang
- School of Medicine, Shantou University, Shantou, 515063, Guangdong Province, China
| | - X Ge
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, People's Republic of China
- Inflammatory Bowel Disease Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - W Qi
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, People's Republic of China
- Inflammatory Bowel Disease Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - T Lin
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, People's Republic of China
| | - Q Cao
- Inflammatory Bowel Disease Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - L Cao
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, 310016, Zhejiang Province, People's Republic of China.
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14
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Liu Y, Diao S, Ruan B, Zhou Y, Yu M, Dong G, Xu W, Ning L, Zhou W, Jiang Y, Xie C, Fan Q, Huang J. Molecular Engineering of Activatable NIR-II Hemicyanine Reporters for Early Diagnosis and Prognostic Assessment of Inflammatory Bowel Disease. ACS Nano 2024; 18:8437-8451. [PMID: 38501308 DOI: 10.1021/acsnano.3c13105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Molecular imaging in the second near-infrared window (NIR-II) provides high-fidelity visualization of biopathological events in deep tissue. However, most NIR-II probes produce "always-on" output and demonstrate poor signal specificity toward biomarkers. Herein, we report a series of hemicyanine reporters (HBCs) with tunable emission to NIR-II window (715-1188 nm) and structurally amenable to constructing activatable probes. Such manipulation of emission wavelengths relies on rational molecular engineering by integrating benz[c,d]indolium, benzo[b]xanthonium, and thiophene moieties to a conventional hemicyanine skeleton. In particular, HBC4 and HBC5 possess bright and record long emission over 1050 nm, enabling improved tissue penetration depth and superior signal to background ratio for intestinal tract mapping than NIR-I fluorophore HC1. An activatable inflammatory reporter (AIR-PE) is further constructed for pH-triggered site-specific release in colon. Due to minimized background interference, oral gavage of AIR-PE allows clear delineation of irritated intestines and assessment of therapeutic responses in a mouse model of inflammatory bowel disease (IBD) through real-time NIRF-II imaging. Benefiting from its high fecal clearance efficiency (>90%), AIR-PE can also detect IBD and evaluate the effectiveness of colitis treatments via in vitro optical fecalysis, which outperforms typical clinical assays including fecal occult blood testing and histological examination. This study thus presents NIR-II molecular scaffolds that are not only applicable to developing versatile activatable probes for early diagnosis and prognostic monitoring of deeply seated diseases but also hold promise for future clinical translations.
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Affiliation(s)
- Yi Liu
- School of Pharmaceutical Sciencese, Sun Yat-sen University, Guangzhou 510006, China
| | - Shanchao Diao
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Bankang Ruan
- School of Pharmaceutical Sciencese, Sun Yat-sen University, Guangzhou 510006, China
| | - Ya Zhou
- School of Pharmaceutical Sciencese, Sun Yat-sen University, Guangzhou 510006, China
| | - Mengya Yu
- School of Pharmaceutical Sciencese, Sun Yat-sen University, Guangzhou 510006, China
| | - Guoqi Dong
- School of Pharmaceutical Sciencese, Sun Yat-sen University, Guangzhou 510006, China
| | - Weiping Xu
- School of Pharmaceutical Sciencese, Sun Yat-sen University, Guangzhou 510006, China
| | - Lulu Ning
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Wen Zhou
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Yuyan Jiang
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford 94305, California, United States
| | - Chen Xie
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Quli Fan
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials IAM, Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Jiaguo Huang
- School of Pharmaceutical Sciencese, Sun Yat-sen University, Guangzhou 510006, China
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15
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Zhu W, Hong Y, Tong Z, He X, Li Y, Wang H, Gao X, Song P, Zhang X, Wu X, Tan Z, Huang W, Liu Z, Bao Y, Ma J, Zheng N, Xie C, Ke X, Zhou W, Jia W, Li M, Zhong J, Sheng L, Li H. Activation of hepatic adenosine A1 receptor ameliorates MASH via inhibiting SREBPs maturation. Cell Rep Med 2024; 5:101477. [PMID: 38508143 PMCID: PMC10983109 DOI: 10.1016/j.xcrm.2024.101477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 12/10/2023] [Accepted: 02/21/2024] [Indexed: 03/22/2024]
Abstract
Metabolic (dysfunction)-associated steatohepatitis (MASH) is the advanced stage of metabolic (dysfunction)-associated fatty liver disease (MAFLD) lacking approved clinical drugs. Adenosine A1 receptor (A1R), belonging to the G-protein-coupled receptors (GPCRs) superfamily, is mainly distributed in the central nervous system and major peripheral organs with wide-ranging physiological functions; however, the exact role of hepatic A1R in MAFLD remains unclear. Here, we report that liver-specific depletion of A1R aggravates while overexpression attenuates diet-induced metabolic-associated fatty liver (MAFL)/MASH in mice. Mechanistically, activation of hepatic A1R promotes the competitive binding of sterol-regulatory element binding protein (SREBP) cleavage-activating protein (SCAP) to sequestosome 1 (SQSTM1), rather than protein kinase A (PKA) leading to SCAP degradation in lysosomes. Reduced SCAP hinders SREBP1c/2 maturation and thus suppresses de novo lipogenesis and inflammation. Higher hepatic A1R expression is observed in patients with MAFL/MASH and high-fat diet (HFD)-fed mice, which is supposed to be a physiologically adaptive response because A1R agonists attenuate MAFL/MASH in an A1R-dependent manner. These results highlight that hepatic A1R is a potential target for MAFL/MASH therapy.
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Affiliation(s)
- Weize Zhu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ying Hong
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhaowei Tong
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xiaofang He
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yan Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hao Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xinxin Gao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Pengtao Song
- Department of Pathology, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xianshan Zhang
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Xiaochang Wu
- Department of Hepatobiliary Surgery, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Zhenhua Tan
- Department of Hepatobiliary Surgery, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China
| | - Wenjin Huang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zekun Liu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yiyang Bao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Junli Ma
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ningning Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Cen Xie
- Shanghai Frontiers Science Center of TCM Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xisong Ke
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wen Zhou
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural, Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Wei Jia
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong 999077, China
| | - Mingxiao Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Jing Zhong
- Huzhou Key Laboratory of Precision Medicine Research and Translation for Infectious Diseases, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou 313000, China.
| | - Lili Sheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Houkai Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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16
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Dixit A, Bennett R, Ali K, Griffin C, Clifford RA, Turner M, Poston R, Hautzinger K, Yeakey A, Girard B, Zhou W, Deng W, Zhou H, Schnyder Ghamloush S, Kuter BJ, Slobod K, Miller JM, Priddy F, Das R. Interim safety and immunogenicity of COVID-19 omicron BA.1 variant-containing vaccine in children in the USA: an open-label non-randomised phase 3 trial. Lancet Infect Dis 2024:S1473-3099(24)00101-4. [PMID: 38518789 DOI: 10.1016/s1473-3099(24)00101-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 01/17/2024] [Accepted: 02/08/2024] [Indexed: 03/24/2024]
Abstract
BACKGROUND Variant-containing mRNA vaccines for COVID-19 to broaden protection against SARS-CoV-2 variants are recommended based on findings in adults. We report interim safety and immunogenicity of an omicron BA.1 variant-containing (mRNA-1273.214) primary vaccination series and booster dose in paediatric populations. METHODS This open-label, two-part, non-randomised phase 3 trial enrolled participants aged 6 months to 5 years at 24 US study sites. Eligible participants were generally healthy or had stable chronic conditions, without known SARS-CoV-2 infection in the previous 90 days. Individuals who were acutely ill or febrile 1 day before or at the screening visit or those who previously received other COVID-19 vaccines (except mRNA-1273 for part 2) were excluded. In part 1, SARS-CoV-2-vaccine-naive participants received two-dose mRNA-1273.214 (25 μg; omicron BA.1 and ancestral Wuhan-Hu-1 mRNA) primary series. In part 2, participants who previously completed the two-dose mRNA-1273 (25 μg) primary series in KidCOVE (NCT04796896) received a mRNA-1273.214 (10 μg) booster dose. Primary study outcomes were safety and reactogenicity of the mRNA-1273.214 primary series (part 1) or booster dose (part 2) as well as the inferred effectiveness of mRNA-1273.214 based on immune responses against ancestral SARS-CoV-2 (D614G) and omicron BA.1 variant at 28 days post-primary series (part 1) or post-booster dose (part 2). The safety set included participants who received at least one dose of the study vaccine; the immunogenicity set included those who provided immunogenicity samples. Interim safety and immunogenicity are summarised in this analysis as of the data cutoff date (Dec 5, 2022). This trial is registered with ClinicalTrials.gov, NCT05436834. FINDINGS Between June 21, 2022, and Dec 5, 2022, 179 participants received one or more doses of mRNA-1273.214 primary series (part 1) and 539 received a mRNA-1273.214 booster dose (part 2). The safety profile within 28 days after either dose of the mRNA-1273.214 primary series and the booster dose was consistent with that of the mRNA-1273 primary series in this age group, with no new safety concerns or vaccine-related serious adverse events observed. At 28 days after primary series dose 2 and the booster dose, both mRNA-1273.214 primary series (day 57, including all participants with or without evidence of prior SARS-CoV-2 infection at baseline) and booster (day 29, including participants without evidence of prior SARS-CoV-2 infection at baseline) elicited responses that were superior against omicron-BA.1 (geometric mean ratio part 1: 25·4 [95% CI 20·1-32·1] and part 2: 12·5 [11·0-14·3]) and non-inferior against D614G (part 1: 0·8 [0·7-1·0] and part 2: 3·1 [2·8-3·5]), compared with neutralising antibody responses induced by the mRNA-1273 primary series (in a historical comparator group). INTERPRETATION mRNA-1273.214 was immunogenic against BA.1 and D614G in children aged 6 months to 5 years, with a comparable safety profile to mRNA-1273, when given as a two-dose primary series or a booster dose. These results are aligned with the US Centers for Disease Control and Prevention recommendations for the use of variant-containing vaccines for continued protection against the emerging variants of SARS-CoV-2. FUNDING Moderna.
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Affiliation(s)
| | | | - Kashif Ali
- Texas Center for Drug Development, Houston, TX, USA
| | - Carl Griffin
- Lynn Health Science Institute - ERN - PPDS, Oklahoma City, OK, USA
| | | | - Mark Turner
- Velocity Clinical Research - Boise - ERN - PPDS, Meridian, ID, USA
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17
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Ye Y, Wang Y, Zhuang Y, Tan H, Zuo Z, Yun H, Yuan K, Zhou W. Decomposition of an odorant in olfactory perception and neural representation. Nat Hum Behav 2024:10.1038/s41562-024-01849-0. [PMID: 38499771 DOI: 10.1038/s41562-024-01849-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 02/19/2024] [Indexed: 03/20/2024]
Abstract
Molecules-the elementary units of substances-are commonly considered the units of processing in olfactory perception, giving rise to undifferentiated odour objects invariant to environmental variations. By selectively perturbing the processing of chemical substructures with adaptation ('the psychologist's microelectrode') in a series of psychophysical and neuroimaging experiments (458 participants), we show that two perceptually distinct odorants sharing part of their structural features become significantly less discernible following adaptation to a third odorant containing their non-shared structural features, in manners independent of olfactory intensity, valence, quality or general olfactory adaptation. The effect is accompanied by reorganizations of ensemble activity patterns in the posterior piriform cortex that parallel subjective odour quality changes, in addition to substructure-based neural adaptations in the anterior piriform cortex and amygdala. Central representations of odour quality and the perceptual outcome thus embed submolecular structural information and are malleable by recent olfactory encounters.
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Affiliation(s)
- Yuting Ye
- State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
- Institute of Psychology, School of Public Affairs, Xiamen University, Xiamen, China
| | - Yanqing Wang
- State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
- School of Psychology, Northwest Normal University, Lanzhou, China
| | - Yuan Zhuang
- State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Huibang Tan
- State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Zhentao Zuo
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei, China
- Sino-Dannish College, University of Chinese Academy of Sciences, Beijing, China
| | - Hanqi Yun
- State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Kaiqi Yuan
- State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Wen Zhou
- State Key Laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China.
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
- Chinese Institute for Brain Research, Beijing, China.
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18
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Li Y, Zhou W, Chen W, Deng B, You J. Efficacy and safety of moxibustion for ulcerative colitis: protocol for a systematic review and meta-analysis. BMJ Open 2024; 14:e078878. [PMID: 38503422 PMCID: PMC10952919 DOI: 10.1136/bmjopen-2023-078878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 02/29/2024] [Indexed: 03/21/2024] Open
Abstract
INTRODUCTION Ulcerative colitis (UC) is a global chronic inflammatory bowel disease, and the poor efficacy of currently available pharmacological regimens makes the management of UC a great challenge. Moxibustion has shown great potential in the management of UC. However, its effectiveness and safety are still controversial. The purpose of this study is to synthesise the latest evidence regarding the clinical efficacy and safety of moxibustion for UC. METHODS AND ANALYSIS The Cochrane Library, PubMed, EMBASE, CNKI, Wanfang, VIP and SinoMed databases will be searched from inception to July 2023, to identify all randomised controlled trials with moxibustion for UC. The primary outcome will be clinical efficacy, as measured by validated scales. The serum inflammatory factor, colonoscopy results, quality of life, recurrence rate and adverse events will be the secondary outcomes. The Cochrane Risk of Bias 2.0 tool will be used to assess the methodological quality of each included trial. All data extraction will be carried out independently by two investigators. RevMan V.5.4 software will be used for data analysis and Cochran's Q statistic and I2 test will be used to assess heterogeneity between studies. In addition, we will perform subgroup analyses, sensitivity analyses and publication bias if the available data are sufficient. The strength of evidence will be graded using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system. ETHICS AND DISSEMINATION Ethics approval is not required for this review. Our findings will be published in a peer-reviewed journal. PROSPERO REGISTRATION NUMBER CRD42023425481.
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Affiliation(s)
- Yanzhen Li
- School of Clinical Medicine, Nanchang Medical College, Nanchang, Jiangxi, China
| | - Wen Zhou
- Scientific Research Division, Nanchang Medical College, Nanchang, Jiangxi, China
| | - Wenxiao Chen
- Scientific Research Division, Nanchang Medical College, Nanchang, Jiangxi, China
| | - Bailing Deng
- Formula-pattern Research Center, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, China
| | - Jianyu You
- School of Acupuncture-Moxibustion and Tuina, Jiangxi University of Chinese Medicine, Nanchang, Jiangxi, China
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19
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Tran R, Brownsey DK, O'Sullivan L, Brandow CMJ, Chang ES, Zhou W, Patel KV, Gorobets E, Derksen DJ. Leveraging Pyrazolium Ylide Reactivity to Access Indolizine and 1,2-Dihydropyrimidine Derivatives. Chemistry 2024:e202400421. [PMID: 38478466 DOI: 10.1002/chem.202400421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Indexed: 04/06/2024]
Abstract
N-Heterocyclic ylides are important synthetic precursors to rapidly build molecular complexity. Pyrazolium ylides have largely been unexplored, and we demonstrate their diverse utility in this report. We show that these readily accessible building blocks can be used to construct different heterocyclic skeletons by varying the coupling partner. Indolizines can be formed via an N-deletion type mechanism when reacting pyrazolium salts with electron deficient alkynes. 1,2-Dihydropyrimidines can be formed via a rearrangement mechanism when reacting pyrazolium ylides with isocyanates. These reactions enable access to valuable heteroarenes without the need for transition metal catalysis, high temperatures, or strong bases.
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Affiliation(s)
- Ricky Tran
- Faculty of Science, University of Calgary, 2500 University Drive NW, Calgary AB, Canada
| | - Duncan K Brownsey
- Faculty of Science, University of Calgary, 2500 University Drive NW, Calgary AB, Canada
| | - Leonie O'Sullivan
- Faculty of Science, University of Calgary, 2500 University Drive NW, Calgary AB, Canada
| | - Connor M J Brandow
- Faculty of Science, University of Calgary, 2500 University Drive NW, Calgary AB, Canada
| | - Emily S Chang
- Faculty of Science, University of Calgary, 2500 University Drive NW, Calgary AB, Canada
| | - Wen Zhou
- Faculty of Science, University of Calgary, 2500 University Drive NW, Calgary AB, Canada
| | - Ketul V Patel
- Faculty of Science, University of Calgary, 2500 University Drive NW, Calgary AB, Canada
| | - Evgueni Gorobets
- Faculty of Science, University of Calgary, 2500 University Drive NW, Calgary AB, Canada
| | - Darren J Derksen
- Faculty of Science, University of Calgary, 2500 University Drive NW, Calgary AB, Canada
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20
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Yang L, Zhou W, Gao Y, Wu T, Zhang H, Gan X. Development and validation of the missed intensive nursing care scale. BMC Nurs 2024; 23:165. [PMID: 38454469 PMCID: PMC10919009 DOI: 10.1186/s12912-024-01805-3] [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: 10/30/2023] [Accepted: 02/18/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND Missed nursing care is a pervasive issue in hospitals, nursing homes, and communities, posing a significant threat to patient safety and the quality of nursing care. It has adverse effects on patient satisfaction and the motivation of nursing staff. Understanding the causes and nature of these care omissions in clinical settings is essential for implementing effective interventions. This study aims to develop and validate a tool for assessing missed nursing care in adult intensive care units. METHODS Semi-structured interviews, expert consultations conducted via the Delphi method and item analysis were used to develop the initial scale. Our analysis involved data collected from 400 nurses and employed correlation coefficient analysis, critical ratio assessment, Cronbach's α coefficient evaluation, discrete trend analysis, and factor analysis, which were grounded in both classical test theory and item response theory, allowing us to scrutinize and refine the items in the scale. To validate the scale, we conveniently sampled 550 nurses and assessed structural validity, internal reliability, split-half reliability, and test-retest reliability to ensure the scale's robustness and accuracy. RESULTS The Missed Intensive Nursing Care Scale (MINCS) comprises three distinct components. Part A serves to collect general information about the participants. In Part B, the missed care elements are categorized into five domains, following the framework of Maslow's hierarchy of needs theory: physiology, safety, belongingness, esteem, and cognition. Part C is dedicated to detailing the reasons behind missed care, which encompass labor resources, material resources, communication factors, and managerial factors. Remarkably, the Cronbach's α coefficient for the MINCS stands at an impressive 0.951, with S-CVI values of 0.988 and 0.977 in Part B and C, respectively, underscoring the scale's exceptional reliability and validity. This demonstrates the scale's effectiveness in measuring missed nursing care while upholding rigorous standards of quality. CONCLUSIONS The MINCS emerges as a robust and dependable instrument for quantifying instances of missed care within the ICU. Its efficacy makes it a valuable resource for informing the development of strategies aimed at averting and mitigating the adverse effects associated with missed nursing care.
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Affiliation(s)
- Li Yang
- Nursing Department, The Second Affiliated Hospital of Chongqing Medical University, Nanan District, Chongqing, China
| | - Wen Zhou
- Nursing Department, The Second Affiliated Hospital of Chongqing Medical University, Nanan District, Chongqing, China
| | - Yan Gao
- Nursing Department, The Second Affiliated Hospital of Chongqing Medical University, Nanan District, Chongqing, China
| | - Taiqin Wu
- Nursing Department, The Second Affiliated Hospital of Chongqing Medical University, Nanan District, Chongqing, China
| | - Huan Zhang
- Nursing Department, The Second Affiliated Hospital of Chongqing Medical University, Nanan District, Chongqing, China
| | - Xiuni Gan
- Nursing Department, The Second Affiliated Hospital of Chongqing Medical University, Nanan District, Chongqing, China.
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21
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Xu S, Zhou W, Li W, Gou Y, Sang B, Uddin R, Zeng L. Space-time domain equalization algorithm based on complex-valued neural network in a long-haul photonic-aided MIMO THz system. Opt Lett 2024; 49:1253-1256. [PMID: 38426986 DOI: 10.1364/ol.512416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 12/20/2023] [Indexed: 03/02/2024]
Abstract
The urgent demand for high-bandwidth wireless services in enhanced mobile broadband networks needs innovative solutions for mobile front-haul systems. The terahertz (THz) band offers a promising candidate for ultrahigh-capacity data transmission. This study investigates the integration of photonics-aided THz signal generation with MIMO and PDM technologies. We proposed a novel, to the best of our knowledge, space-time domain equalization algorithm based on MIMO-complex-valued neural networks (CVNN), which can preserve the signal phase and the relation between the X- and Y-polarization. We experimentally demonstrate the transmission of 60-GBaud PDM-QPSK and 30-GBaud PDM-16QAM signals over a 100-m 2 × 2 wireless MIMO link at 320 GHz with BER below 3.8 × 10-3 and 1.56 × 10-2 for QPSK and 16QAM signals, respectively. Compared with the MIMO-Volterra, our MIMO-CVNN has an advantage in terms of calculation complexity and decision accuracy due to its effective handling of phase information and inter-polarization relationships simultaneously.
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22
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Huang JQ, Cheng N, Zhong YB, Zhang ZY, Huang L, Song LZ, Li MD, Deng YF, Zhou W, Zhao HM, Liu DY. Integrating network pharmacology and experimental verification to explore the mucosal protective effect of Chimonanthus nitens Oliv. Leaf Granule on ulcerative colitis. J Ethnopharmacol 2024; 321:117540. [PMID: 38056534 DOI: 10.1016/j.jep.2023.117540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 12/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Chimonanthus nitens Oliv. Leaf Granule (COG) is a commonly used clinical preparation of traditional Chinese medicine for the treatment of cold, but there are folk reports that it can treat diarrhea and other gastrointestinal diseases. Therefore, the mechanism of COG in the treatment of ulcerative colitis with diarrhea as the main symptom needs to be studied. AIM OF THE STUDY Combined network pharmacology and experimental validation to explore the mechanism of COG in the treatment of ulcerative colitis. MATERIALS AND METHODS First, the main components of COG were characterized by liquid chromatography-mass spectrometry (LC-MS); subsequently, a network pharmacology approach was used to screen the effective chemical components and action targets of COG to construct a target network of COG for the treatment of ulcerative colitis (UC). The protein-protein interaction network (PPI) and literature reports were combined to identify the potential targets of COG for the treatment of UC. Finally, the predicted results of network pharmacology were validated by animal and cellular experiments. RESULTS 19 components of COG were characterized by LC-MS, among which 10 bioactive components could act on 377 potential targets of UC. Key therapeutic targets were collected, including SRC, HSP90AA1, PIK3RI, MAPK1 and ESR1. KEGG results are enriched in pathways related to oxidative stress. Molecular docking analysis showed good binding activity of main components and target genes. Animal experiments showed that COG significantly relieved the colitis symptoms in mice, regulated the Treg/Th17 balance, and promoted the secretion of IL-10 and IL-4, along with the inhibition of IL-1β and TNF-α. Additionally, COG reduced the apoptosis of colon epithelial cells, and significantly improved the levels of SOD, MAO, GSH-px, and inhibited MDA, iNOS, eNOS in colon. Also, it increased the expression of tight junction proteins such as ZO-1, Claudin1, Occludin and E-cadherin. In vitro experiments, COG inhibited the oxidative stress and inflammatory injury of HCT116 cells induced by LPS. CONCLUSIONS Combining network pharmacology and in vitro and in vivo experiments, COG was verified to have a good protective effect in UC, which may be related to enhancing antioxidation in colon tissues.
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Affiliation(s)
- Jia-Qi Huang
- Department of Postgraduate, Jiangxi University of Chinese Medicine, 330004, Nanchang, China
| | - Nian Cheng
- Department of Postgraduate, Jiangxi University of Chinese Medicine, 330004, Nanchang, China
| | - You-Bao Zhong
- Department of Postgraduate, Jiangxi University of Chinese Medicine, 330004, Nanchang, China; Laboratory Animal Research Center for Science and Technology, Jiangxi University of Chinese Medicine, 330004, Nanchang, China
| | - Zhe-Yan Zhang
- Department of Postgraduate, Jiangxi University of Chinese Medicine, 330004, Nanchang, China
| | - Li Huang
- Department of Postgraduate, Jiangxi University of Chinese Medicine, 330004, Nanchang, China
| | - Li-Zhao Song
- Department of Postgraduate, Jiangxi University of Chinese Medicine, 330004, Nanchang, China
| | - Ming-Da Li
- College of Science and Technology, Jiangxi University of Chinese Medicine, 330004, Nanchang, China
| | - Yi-Fei Deng
- College of Chinese Medicine, Jiangxi University of Chinese Medicine, 330004, Nanchang, China
| | - Wen Zhou
- College of Chinese Medicine, Nanchang Medical College, 330004, Nanchang, China
| | - Hai-Mei Zhao
- College of Chinese Medicine, Jiangxi University of Chinese Medicine, 330004, Nanchang, China; Formula-Pattern Research Center, Jiangxi University of Chinese Medicine, 330004, Nanchang, China.
| | - Duan-Yong Liu
- College of Chinese Medicine, Jiangxi University of Chinese Medicine, 330004, Nanchang, China; Formula-Pattern Research Center, Jiangxi University of Chinese Medicine, 330004, Nanchang, China; Institute of Traditional Chinese Medicine Health Industry, China Academy of Chinese Medical Sciences, China.
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23
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Yuan D, Li H, Dai W, Zhou X, Zhou W, He L. IGF2BP3-stabilized CAMK1 regulates the mitochondrial dynamics of renal tubule to alleviate diabetic nephropathy. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167022. [PMID: 38216068 DOI: 10.1016/j.bbadis.2024.167022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 12/24/2023] [Accepted: 01/05/2024] [Indexed: 01/14/2024]
Abstract
BACKGROUND CAMK1 has been shown to be involved in human disease progression via regulating mitochondrial dynamics. However, whether CAMK1 mediates mitochondrial dynamics to regulate diabetic nephropathy (DN) process remains unclear. METHODS Mice were injected with streptozotocin (STZ) to mimic diabetic mice models in vivo, and mice with proximal tubule-specific knockout of CAMK1 (CAMK1-KO) were generated. HK-2 cells were treated with high-glucose (HG) to mimic DN cell model in vitro. Histopathological analysis was performed to confirm kidney injury in mice. ROS production and apoptosis were assessed by DHE staining and TUNEL staining. Mitochondria morphology was observed and analyzed by electron microscopy. Mitochondrial membrane potential was detected by JC-1 staining, and cell proliferation was measured by EdU assay. The mRNA and protein expression were examined by qRT-PCR, western blot and immunostaining. RNA interaction was confirmed by RIP assay and dual-luciferase reporter assay. The mRNA stability was tested by actinomycin D treatment, and m6A level was examined by MeRIP assay. RESULTS CAMK1 was reduced in DN patients and STZ-induced diabetic mice. Conditional deletion of CAMK1 aggravated kidney injury and promoted mitochondrial fission in diabetic mice. CAMK1 overexpression inhibited mitochondrial fission to alleviate HG-induced HK-2 cell apoptosis. IGF2BP3 promoted the stability of CAMK1 mRNA by m6A modification. IGF2BP3 inhibited mitochondrial fission to repress cell apoptosis in vitro and kidney injury in vivo by increasing CAMK1 expression. CONCLUSION IGF2BP3-mediated CAMK1 mRNA stability alleviated DN progression by inhibiting mitochondria fission.
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Affiliation(s)
- Du Yuan
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, No. 139 People's Middle Road, Changsha 410011, Hunan, People's Republic of China
| | - Hao Li
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, No. 139 People's Middle Road, Changsha 410011, Hunan, People's Republic of China
| | - Wenni Dai
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, No. 139 People's Middle Road, Changsha 410011, Hunan, People's Republic of China
| | - Xun Zhou
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, No. 139 People's Middle Road, Changsha 410011, Hunan, People's Republic of China
| | - Wen Zhou
- Clinical Nursing Teaching and Research Section, The Second Xiangya Hospital of Central South University, Changsha, People's Republic of China
| | - Liyu He
- Department of Nephrology, The Second Xiangya Hospital of Central South University, Hunan Key Laboratory of Kidney Disease and Blood Purification, No. 139 People's Middle Road, Changsha 410011, Hunan, People's Republic of China.
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24
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Zhao X, Zhang Q, Tao S, Zhou W, Jia PY. Corrigendum to "Association of edentulism and all-cause mortality in Chinese older adults: do sex differences exist?" [Public Health 221 (2023) 184-189]. Public Health 2024; 228:206. [PMID: 38402114 DOI: 10.1016/j.puhe.2023.11.037] [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: 02/26/2024]
Affiliation(s)
- X Zhao
- School of Health Humanities, Peking University, Beijing, China
| | - Q Zhang
- National School of Development, Peking University, Beijing, China
| | - S Tao
- School of Health Humanities, Peking University, Beijing, China
| | - W Zhou
- Research Center for Public Health and Social Security, School of Public Administration, Hunan University, Hunan, China
| | - P-Y Jia
- Department of the Fourth Clinical Division, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical, Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry, Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China.
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25
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Wu M, Zhou W, Hu S, Peng F, Yang F, Zhang L. Parenting self-efficacy and parenting stress mediates the effects of the association of perceived social support and readiness for discharge among parents of children with primary nephrotic syndrome. J Pediatr Nurs 2024; 75:e93-e101. [PMID: 38199933 DOI: 10.1016/j.pedn.2023.12.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 11/12/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024]
Abstract
PURPOSE To investigate the level of readiness for discharge among parents of children with primary nephrotic syndrome and to explore the mediating role of parenting self-efficacy and parenting stress between perceived social support and readiness for discharge. DESIGN AND METHODS A cross-sectional study was conducted in five large tertiary general hospitals in Hunan, China. Data related to demographics, perceived social support, parenting self-efficacy, parenting stress, and readiness for discharge were collected from 350 parents of children diagnosed with primary nephrotic syndrome. Path analysis was used to determine the mediating roles of parenting self-efficacy and parenting stress in the relationship between perceived social support and readiness for discharge. RESULTS Parents of children with nephrotic syndrome in China experienced low perceived social support, low readiness for discharge, and high parenting stress. Factors influencing readiness for discharge include the child's age, duration of illness, first episode or relapse, parental literacy and marital status. Parenting self-efficacy and parenting stress mediated the effects of the association of perceived social support and readiness for discharge. CONCLUSION Perceived social support influences the readiness of parents of children with nephrotic syndrome. Parenting self-efficacy and parenting stress have a chain mediating effect of the association of perceived social support and readiness for discharge. PRACTICE IMPLICATIONS This study emphasizes the mediating role of the psychological state of the child's parents. Nurses should take steps to increase perceived social support and parenting self-efficacy of the child's parents and to reduce parenting stress in order to improve readiness for discharge.
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Affiliation(s)
- Mengyu Wu
- Department of Nursing, Medical College of Hunan Normal University, Changsha city, Hunan Province 410013, PR China; Department of Pediatric, The Second Xiangya Hospital of Central South University, Changsha City, Hunan Province 410011, PR China
| | - Wen Zhou
- Department of Pediatric, The Second Xiangya Hospital of Central South University, Changsha City, Hunan Province 410011, PR China
| | - Shengnan Hu
- Department of Nursing, Medical College of Hunan Normal University, Changsha city, Hunan Province 410013, PR China
| | - Fangrong Peng
- Department of Pediatric, The Second Xiangya Hospital of Central South University, Changsha City, Hunan Province 410011, PR China
| | - Fang Yang
- Department of Pediatric, The Second Xiangya Hospital of Central South University, Changsha City, Hunan Province 410011, PR China
| | - Liuyi Zhang
- Department of Nursing, Medical College of Hunan Normal University, Changsha city, Hunan Province 410013, PR China.
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26
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Guo Z, Wang N, He X, Shen J, Yang X, Xie C, Fan Q, Zhou W. Self-amplified activatable nanophotosensitizers for HIF-1α inhibition-enhanced photodynamic therapy. Nanoscale 2024; 16:4239-4248. [PMID: 38348473 DOI: 10.1039/d3nr05245a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Activatable photodynamic therapy (PDT) has shown great potential in cancer therapy owing to its high tumor specificity and minimized side effect. However, the relatively low level of biomarkers within tumor tissue rescricts the photosensitizer to get thoroughly activated. In this study, we design a self-amplified activatable nanophotosensitizer (CPPa NP) for enhanced PDT. CPPa NP is prepared by encapsulating a hypoxia-inducible factor 1α (HIF-1α) inhibitor CI-994 with an amphiphilic hydrogen peroxide (H2O2) responsive copolymer PPa-CA-PEG. Upon the addition of H2O2, the thioketal linker within CPPa NP is cleaved, resulting in the simultaneous release of thiol-modified pyropheophorbide a (PPa-SH), cinnamic aldehyde (CA), and CI-994. PPa-SH can be encapsulated by albumin to turn on its photodynamic efficiency, while CI-994 may inhibit the expression of HIF-1α to improve the PDT efficacy. CA is able to deplete glutathione (GSH) and upregulate reactive oxygen species (ROS) within tumor cells, accelerating the dissociation of nanoparticles and disrupting the redox balance of tumor cells. In vitro and in vivo studies showed that CPPa NP can successfully elevate the ROS level within 4T1 cells and has a better anticancer efficacy than PPa NP without CI-994 under laser irradiation. This study thus provides an effective approach to develop self-amplified activatable nanoparticles for enhanced PDT.
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Affiliation(s)
- Zixin Guo
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Nana Wang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Xiaowen He
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Jinlong Shen
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Xiangqi Yang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Chen Xie
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Quli Fan
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
| | - Wen Zhou
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China.
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Adeyeri OE, Zhou W, Ndehedehe CE, Wang X. Global vegetation, moisture, thermal and climate interactions intensify compound extreme events. Sci Total Environ 2024; 912:169261. [PMID: 38097089 DOI: 10.1016/j.scitotenv.2023.169261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 12/07/2023] [Accepted: 12/08/2023] [Indexed: 12/21/2023]
Abstract
Compound extreme events, encompassing drought, vegetation stress, wildfire severity, and heatwave intensity (CDVWHS), pose significant threats to societal, environmental, and health systems. Understanding the intricate relationships governing CDVWHS evolution and their interaction with climate teleconnections is crucial for effective climate adaptation strategies. This study leverages remote sensing, reanalysis data, and climate models to analyze CDVWHS during historical (1982-2014), near-future (2028-2060), and far-future (2068-2100) periods under two Shared Socioeconomic Pathways (SSP; 245 and 585). Our results show that reduced vegetation health, unfavorable temperature conditions, and low moisture conditions have negligible effects on vegetation density. However, they worsen the intensity of heatwaves and increase the risk of wildfires. Wildfires can persist when thermal conditions are poor despite favorable moisture levels. For example, despite adequate moisture availability, we link the 2012 Siberian wildfire in the Ob basin to anomalous negative thermal conditions and concurrent unfavorable thermal-moisture conditions. In contrast, the Amazon experiences extreme and exceptional drought associated with unfavorable moisture conditions in the same year. A comparative analysis of Siberian and North American fires reveals distinct burned area anomalies due to variations in vegetation density and wildfire fuel. The North American fires have lower positive anomalies in burned areas because of negative anomalous vegetation density, which reduced the amount of wildfire fuel. Furthermore, we examine basin-specific variability in climate teleconnections related to compound CDVWHS, revealing the primary modes of variability and evolution of CDVWHS through climate teleconnection patterns. Moreover, a substantial increase in the magnitude of heatwave severity emerges between the near and far future under SSP 585. This study underscores the urgency for targeted actions to enhance ecosystem resilience and safeguard vulnerable communities from CDVWHS impacts. Identifying CDVWHS hotspots and comprehending their complex relationships with environmental factors are essential for developing effective adaptation strategies in a changing climate.
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Affiliation(s)
- Oluwafemi E Adeyeri
- Low-Carbon and Climate Impact Research Centre, School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong; Key Laboratory of Polar Atmosphere-Ocean-Ice System for Weather and Climate, Ministry of Education, Department of Atmospheric and Oceanic Sciences, Institute of Atmospheric Sciences, Fudan University, Shanghai, China; Australian Rivers Institute, Griffith University, Nathan, QLD 4111, Australia
| | - Wen Zhou
- Key Laboratory of Polar Atmosphere-Ocean-Ice System for Weather and Climate, Ministry of Education, Department of Atmospheric and Oceanic Sciences, Institute of Atmospheric Sciences, Fudan University, Shanghai, China; Key Laboratory for Polar Science of the MNR, Polar Research Institute of China, Shanghai, China.
| | - Christopher E Ndehedehe
- Australian Rivers Institute, Griffith University, Nathan, QLD 4111, Australia; School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
| | - Xuan Wang
- Low-Carbon and Climate Impact Research Centre, School of Energy and Environment, City University of Hong Kong, Kowloon, Hong Kong
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Zhou W. Dilemma and coping strategies of news communication based on artificial intelligence and big data. Heliyon 2024; 10:e25398. [PMID: 38352794 PMCID: PMC10861977 DOI: 10.1016/j.heliyon.2024.e25398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/22/2024] [Accepted: 01/25/2024] [Indexed: 02/16/2024] Open
Abstract
News dissemination is an important way for people to obtain information. With the development of new technologies, traditional news dissemination models have been impacted. It has problems with information filtering and bias, and has certain limitations in news quality, dissemination efficiency, etc., which makes it difficult to effectively meet people's information needs. In order to improve the quality and efficiency of news dissemination, promote the positive impact of news dissemination on society, this article combined artificial intelligence and big data technology to conduct in-depth research on the difficulties and coping strategies of news dissemination. This article first analyzed the characteristics and functions and influencing factors of news dissemination, then provided an overview of the difficulties and coping strategies in news dissemination. Finally, using association rule algorithms, personalized recommendations for news dissemination are achieved. To verify the effectiveness of artificial intelligence and big data in coping with the dilemma of news dissemination, this article conducted experimental analysis from the perspectives of news content quality, dissemination efficiency, objectivity, and dissemination cost. The experimental results show that under the application of news dissemination strategies based on artificial intelligence and big data, the quality of news content and dissemination efficiency have been improved by 4.76 % and 3.63 %, respectively. The conclusion indicates that artificial intelligence and big data can help improve the quality and dissemination efficiency of news content, and meet the diverse needs of the public for information.
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Affiliation(s)
- Wen Zhou
- School of New Media and International Communication, South China Business College of Guangdong University of Foreign Studies, Guangzhou, 510545, Guangdong, China
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29
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He X, Liu M, Du M, Huang Y, Xu P, Xie C, Fan Q, Zhou W. Self-amplified activatable nanoprodrugs for enhanced chemodynamic/chemo combination therapy. Nanotechnology 2024; 35:175101. [PMID: 38262050 DOI: 10.1088/1361-6528/ad21a3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/23/2024] [Indexed: 01/25/2024]
Abstract
Chemodynamic therapy (CDT) has gained increasing attention by virtue of its high tumor specificity and low side effect. However, the low concentration of hydrogen peroxide (H2O2) in the tumor site suppresses the therapeutic efficacy of CDT. To improve the efficacy, introducing other kind of therapeutic modality is a feasible choice. Herein, we develop a self-amplified activatable nanomedicine (PCPTH NP) for chemodynamic/chemo combination therapy. PCPTH NP is composed of a H2O2-activatable amphiphilic prodrug PEG-PCPT and hemin. Upon addition of H2O2, the oxalate linkers within PCPTH NP are cleaved, which makes the simultaneous release of CPT and hemin. The released CPT can not only kill cancer cells but also upregulate the intracellular reactive oxygen species (ROS) level. The elevated ROS level may accelerate the release of drugs and enhance the CDT efficacy. PCPTH NP shows a H2O2concentration dependent release profile, and can effectively catalyze H2O2into hydroxyl radical (·OH) under acidic condition. Compared with PCPT NP without hemin, PCPTH NP has better anticancer efficacy bothin vitroandin vivowith high biosafety. Thus, our study provides an effective approach to improve the CDT efficacy with high tumor specificity.
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Affiliation(s)
- Xiaowen He
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, People's Republic of China
- Zhengzhou lnstitute of Biomedical Engineering andTechnology, Zhengzhou, 450001, People's Republic of China
| | - Mingming Liu
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, People's Republic of China
| | - Mingzhi Du
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, People's Republic of China
| | - Yuxin Huang
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, People's Republic of China
| | - Pu Xu
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, People's Republic of China
| | - Chen Xie
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, People's Republic of China
| | - Quli Fan
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, People's Republic of China
| | - Wen Zhou
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, People's Republic of China
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Cheng Y, Huang B, Mao Q, Huang X, Liu J, Zhou C, Zhou W, Ren X, Kim S, Kim W, Sun Z, Wu F, Yang C, Chen L. Three-in-One Strategy Enables Single-Component Organic Solar Cells with Record Efficiency and High Stability. Adv Mater 2024:e2312938. [PMID: 38320218 DOI: 10.1002/adma.202312938] [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: 11/30/2023] [Revised: 01/31/2024] [Indexed: 02/08/2024]
Abstract
Single-component organic solar cells (SCOSCs) with covalently bonding donor and acceptor are becoming increasingly attractive because of their superior stability over traditional multicomponent blend organic solar cells (OSCs). Nevertheless, the efficiency of SCOSCs is far behind the state-of-the-art multicomponent OSCs. Herein, by combination of the advantages of three-component and single-component devices, this work reports an innovative three-in-one strategy to boost the performance of SCOSCs. In this three-in-one strategy, three independent components (PM6, D18, and PYIT) are covalently linked together to create a new single-component active layer based on ternary conjugated block copolymer (TCBC) PM6-D18-b-PYIT by a facile polymerization. Precisely manipulating the component ratios in the polymer chains of PM6-D18-b-PYIT is able to broaden light utilization, promote charge dynamics, optimize, and stabilize film morphology, contributing to the simultaneously enhanced efficiency and stability of the SCOSCs. Ultimately, the PM6-D18-b-PYIT-based device exhibits a power conversion efficiency (PCE) of 14.89%, which is the highest efficiency of the reported SCOSCs. Thanks to the aggregation restriction of each component and chain entanglement in the three-in-one system, the PM6-D18-b-PYIT-based SCOSC displays significantly higher stability than the corresponding two-component (PM6-D18:PYIT) and three-component (PM6:D18:PYIT). These results demonstrate that the three-in-one strategy is facile and promising for developing SCOSCs with superior efficiency and stability.
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Affiliation(s)
- Yujun Cheng
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Bin Huang
- School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, 156 Ke Jia Road, Ganzhou, 341000, China
| | - Qilong Mao
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Xuexiang Huang
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Jiabin Liu
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Chunxiang Zhou
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Wen Zhou
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Xinyuan Ren
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Seoyoung Kim
- Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Wonjun Kim
- Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Zhe Sun
- Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Feiyan Wu
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Changduk Yang
- Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea
| | - Lie Chen
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
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Zhou W, Qu H, Fu XX, Xu MM, Li Q, Jiang Y, Han S. Neuroprotective effects of a novel peptide through the Rho-integrin-Tie2 and PI3K/Akt pathways in experimental autoimmune encephalomyelitis model. Front Pharmacol 2024; 15:1290128. [PMID: 38384299 PMCID: PMC10880193 DOI: 10.3389/fphar.2024.1290128] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/15/2024] [Indexed: 02/23/2024] Open
Abstract
Purpose: The interaction between inflammatory cells and integrin in the endothelium plays a key role during infiltration. Previous evidence has shown that synthetic C16 peptide selectively binds to integrins αvβ3 and α5β1 and exhibits a neuroprotective effect. It has also been reported to inhibit the differentiation of microglia into the M1 (pro-inflammatory) phenotype while promoting its differentiation to the M2 (anti-inflammatory) phenotype. This study aimed to investigate the mechanisms of action of the C16 peptide in multiple sclerosis using a rodent model. Methods: Molecular, morphological, and neurophysiological assays were used to investigate the neuroprotective effects of C16 peptide and related signaling pathways in a model of EAE. Results: The results showed that C16 significantly improved the clinical score and cortical somatosensory/motor evoked potential. It also alleviated inflammatory responses, including microglial activation and leukocyte infiltration, relieved the impairment of the brain blood barrier and edema, and reduced neuronal apoptosis, axonal loss, and demyelination induced by EAE. The C16 peptide increased the expressions of pTie-2 and Tie-2, integrin αvβ3, and α5β1 and activated the PI3K/Akt signal pathway but decreased the expression of Rho. Co-treatment of C16 with Tie-2 inhibitor and PI3K inhibitor LY294002 attenuated these effects of C16. Conclusion: The C16 peptide demonstrated neuroprotection in the EAE model through the integrin, Tie-2, and PI3K/Akt signaling pathways, and it could be a potential strategy for treating inflammation-related diseases in the central nervous system.
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Affiliation(s)
- Wen Zhou
- Department of Emergency Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Han Qu
- Institute of Anatomy and Cell Biology, Medical College, Zhejiang University, Hangzhou, China
| | - Xiao-Xiao Fu
- Institute of Human Anatomy, Histology and Embryology, Basic Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Miao-Miao Xu
- Department of Rehabilitation in Traditional Chinese Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Qiang Li
- Department of Emergency Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yuan Jiang
- Department of Pulmonology, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Shu Han
- Institute of Anatomy and Cell Biology, Medical College, Zhejiang University, Hangzhou, China
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Al-Aroomi MA, Mashrah MA, Al-Worafi NA, Zhou W, Sun C, Pan C. Biomechanical and aesthetic outcomes following radial forearm free flap transfer: comparison of ipsilateral full-thickness skin graft and traditional split-thickness skin graft. Int J Oral Maxillofac Surg 2024; 53:109-116. [PMID: 37244863 DOI: 10.1016/j.ijom.2023.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 04/21/2023] [Accepted: 04/26/2023] [Indexed: 05/29/2023]
Abstract
The radial forearm free flap (RFFF) is associated with donor site morbidity. This study aimed to quantify the functional and aesthetic outcomes after closure of the RFFF donor site using triangular full-thickness skin grafts (FTSGs) harvested adjacent to the flap or traditional split-thickness skin grafts (STSGs). The study included patients who underwent oral cavity reconstruction with an RFFF between March 2017 and August 2021. The patients were divided into two groups based on the donor site closure method: FTSG or STSG. The primary outcomes were biomechanical grip strength, pinch strength, and range of wrist movements. Subjective donor site morbidity, aesthetic and functional results were also analysed. The study included 75 patients (FTSG n = 35; STSG n = 40). Postoperatively, there was a statistically significant difference in grip strength (P = 0.049) and wrist extension (P = 0.047) between the FTSG and STSG groups, in favour of the STSG. Differences between the groups in pinch strength and other wrist motions were not statistically significant. The harvesting time was significantly shorter for the FTSG (P = 0.041) and the appearance of the donor site was better (P = 0.026) when compared to the STSG. Cold intolerance was more frequent in the STSG group (32.5% STSG vs 6.7% FTSG; P = 0.017). Subjective function, numbness, pain, hypertrophic scar, itching, and social stigma did not differ significantly between the groups. Compared with the STSG, the FTSG showed better cosmesis and avoided additional donor sites, with clinically negligible differences in hand biomechanics.
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Affiliation(s)
- M A Al-Aroomi
- Department of Oral and Maxillofacial-Head and Neck Surgery, School of Stomatology, Oral Diseases Laboratory of Liaoning, China Medical University, Shenyang, Liaoning, China.
| | - M A Mashrah
- Department of Implantology, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, Guangdong, China
| | - N A Al-Worafi
- Department of Orthodontics, School of Stomatology, China Medical University, Shenyang, Liaoning, China
| | - W Zhou
- Department of Oral and Maxillofacial-Head and Neck Surgery, School of Stomatology, Oral Diseases Laboratory of Liaoning, China Medical University, Shenyang, Liaoning, China
| | - C Sun
- Department of Oral and Maxillofacial-Head and Neck Surgery, School of Stomatology, Oral Diseases Laboratory of Liaoning, China Medical University, Shenyang, Liaoning, China.
| | - C Pan
- Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou City, China
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Zhou W, Liang J, Huang X, Weir MD, Masri R, Oates TW, Xu HHK, Cheng L. Novel antibacterial titanium implant healing abutment with dimethylaminohexadecyl methacrylate to combat implant-related infections. Dent Mater 2024; 40:244-253. [PMID: 37981511 DOI: 10.1016/j.dental.2023.11.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 11/05/2023] [Accepted: 11/06/2023] [Indexed: 11/21/2023]
Abstract
OBJECTIVE Implant-related infections from the adhesion and proliferation of dental plaque are a major challenge for dental implants. The objectives of this study were to: (1) develop novel antibacterial titanium (Ti) healing abutment; (2) investigate the inhibition of implant infection-related pathogenic bacteria and saliva-derived biofilm, and evaluate the biocompatibility of the new material for the first time. METHODS Dimethylaminohexadecyl methacrylate (DMAHDM) and hydroxyapatite (HAP) were polymerized via polydopamine (PDA) on Ti. Staphylococcus aureus (S. aureus), Streptococcus sanguinis (S. sanguinis) and human saliva-derived biofilms were tested. After 4 weeks of DMAHDM release, the antibacterial efficacy of the DMAHDM remaining on Ti surface and the DMADHM in medium was tested. Biocompatibility was determined using human gingival fibroblasts (HGFs) and periodontal ligament stem cells (PDLSCs). RESULTS The DMAHDM-loaded coating filled into the nano-voids in Ti surfaces. The modified Ti showed potent antibacterial activity, reducing the CFU of S. aureus, S. sanguinis and saliva-derived biofilms by 8, 7 and 4 log, respectively (P < 0.05). After 4 weeks of release, the modified Ti was still able to reduce S. aureus and S. sanguinis biofilm CFU by 1-3 log (P < 0.05). This provided strong antibacterial function for more than 4 weeks, which were the high-risk period for implant infections. The new material showed excellent biocompatibility when compared to control (P > 0.05). CONCLUSION Novel DMAHDM-loaded Ti healing abutment had strong antibacterial effects, reducing biofilm CFUs by orders of magnitude, and lasting for over four weeks to cover the high-risk period for implant infections. The novel antibacterial Ti is promising to combat implant-related infections in dental, craniofacial and orthopedic applications.
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Affiliation(s)
- Wen Zhou
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou 350002, China; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu 610041, China; Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Jingou Liang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu 610041, China; Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Xiaoyu Huang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu 610041, China; Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD 21201, USA; Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Michael D Weir
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Radi Masri
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Thomas W Oates
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD 21201, USA
| | - Hockin H K Xu
- Department of Advanced Oral Sciences and Therapeutics, University of Maryland School of Dentistry, Baltimore, MD 21201, USA.
| | - Lei Cheng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Center for Oral Diseases & Department of Operative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu 610041, China.
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Shin B, Zhou W, Wang J, Gao F, Rothenberg EV. Author Correction: Runx factors launch T cell and innate lymphoid programs via direct and gene network-based mechanisms. Nat Immunol 2024; 25:372. [PMID: 38012419 DOI: 10.1038/s41590-023-01716-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Affiliation(s)
- Boyoung Shin
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Wen Zhou
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
- Program in Biochemistry and Molecular Biophysics, California Institute of Technology, Pasadena, CA, USA
- BillionToOne, Menlo Park, CA, USA
| | - Jue Wang
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
- Program in Biochemistry and Molecular Biophysics, California Institute of Technology, Pasadena, CA, USA
| | - Fan Gao
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
- Bioinformatics Resource Center, Beckman Institute of California Institute of Technology, Pasadena, CA, USA
- Lyterian Therapeutics, South San Francisco, CA, USA
| | - Ellen V Rothenberg
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA.
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Panaccione R, Danese S, Zhou W, Klaff J, Ilo D, Yao X, Levy G, Higgins PDR, Loftus EV, Chen S, Gonzalez YS, Leonard C, Hébuterne X, Lindsay JO, Cao Q, Nakase H, Colombel JF, Vermeire S. Efficacy and safety of upadacitinib for 16-week extended induction and 52-week maintenance therapy in patients with moderately to severely active ulcerative colitis. Aliment Pharmacol Ther 2024; 59:393-408. [PMID: 38010661 DOI: 10.1111/apt.17816] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/21/2023] [Accepted: 11/07/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND Upadacitinib is an oral, selective Janus kinase inhibitor. AIM To assess the efficacy and safety of upadacitinib in patients with moderate-to-severe ulcerative colitis following 16-week extended induction therapy, and 52-week maintenance therapy in patients achieving clinical response after 16-week extended induction therapy METHODS: Patients without clinical response to 8 weeks' upadacitinib 45 mg once daily induction therapy in two induction trials were eligible for an additional 8 weeks of therapy. Patients achieving clinical response at Week 16 were subsequently re-randomised (1:1) to upadacitinib 15 or 30 mg once daily for 52-week maintenance therapy. Efficacy was assessed at induction Week 16 (integrated) and maintenance Week 52; safety was assessed throughout. RESULTS Overall, 127/663 (19.2%) patients did not achieve clinical response to upadacitinib 45 mg at Week 8 and received an additional 8 weeks of therapy; 75/127 (59.1%) subsequently achieved clinical response at Week 16 and entered the maintenance trial. At Week 52, 26.5% of patients receiving upadacitinib 15 mg, and 43.6% receiving 30 mg, achieved clinical remission; efficacy was observed across all other endpoints with both doses. Herpes zoster rates increased with longer duration (16 weeks) of exposure to upadacitinib 45 mg during induction compared with the same population during the first 8 weeks. No other new safety signals were observed, and results are otherwise consistent with the known safety profile of upadacitinib. CONCLUSIONS Patients without clinical response after 8 weeks' upadacitinib 45 mg induction therapy, may benefit from an additional 8 weeks of therapy. CLINICAL TRIAL REGISTRATION NCT02819635; NCT03653026.
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Affiliation(s)
- Remo Panaccione
- Division of Gastroenterology and Hepatology, University of Calgary, Calgary, Alberta, Canada
| | - Silvio Danese
- Gastroenterology and Endoscopy, IRCCS Ospedale San Raffaele, University Vita-Salute San Raffaele, Milan, Italy
| | - Wen Zhou
- AbbVie Inc, North Chicago, Illinois, USA
| | | | - Dapo Ilo
- AbbVie Inc, North Chicago, Illinois, USA
| | - Xuan Yao
- AbbVie Inc, North Chicago, Illinois, USA
| | | | - Peter D R Higgins
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan, Ann Arbor, Michigan, USA
| | - Edward V Loftus
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota, USA
| | - Su Chen
- AbbVie Inc, North Chicago, Illinois, USA
| | | | | | - Xavier Hébuterne
- Department of Gastroenterology and Clinical Nutrition, CHU de Nice, Université Côte d'Azur, Nice, France
| | - James O Lindsay
- Department of Gastroenterology, The Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Qian Cao
- Department of Gastroenterology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hiroshi Nakase
- Department of Gastroenterology and Hepatology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | | | - Séverine Vermeire
- Department of Gastroenterology and Hepatology, University Hospital Leuven, Leuven, Belgium
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Shen Z, Xuan D, Zhou W, Wang Z, Fei SM. Tighter Constraints of Multi-Qubit Entanglement in Terms of Nonconvex Entanglement Measures LCREN and LCRENoA. Entropy (Basel) 2024; 26:127. [PMID: 38392382 PMCID: PMC10888298 DOI: 10.3390/e26020127] [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: 12/20/2023] [Revised: 01/27/2024] [Accepted: 01/30/2024] [Indexed: 02/24/2024]
Abstract
The monogamy property of entanglement is an intriguing feature of multipartite quantum entanglement. Most entanglement measures satisfying the monogamy inequality have turned out to be convex. Whether nonconvex entanglement measures obey the monogamy inequalities remains less known at present. As a well-known measure of entanglement, the logarithmic negativity is not convex. We elucidate the constraints of multi-qubit entanglement based on the logarithmic convex-roof extended negativity (LCREN) and the logarithmic convex-roof extended negativity of assistance (LCRENoA). Using the Hamming weight derived from the binary vector associated with the distribution of subsystems, we establish monogamy inequalities for multi-qubit entanglement in terms of the αth-power (α≥4ln2) of LCREN, and polygamy inequalities utilizing the αth-power (0≤α≤2) of LCRENoA. We demonstrate that these inequalities give rise to tighter constraints than the existing ones. Furthermore, our monogamy inequalities are shown to remain valid for the high-dimensional states that violate the CKW monogamy inequality. Detailed examples are presented to illustrate the effectiveness of our results in characterizing the multipartite entanglement distributions.
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Affiliation(s)
- Zhongxi Shen
- School of Mathematical Sciences, Capital Normal University, Beijing 100048, China
| | - Dongping Xuan
- School of Mathematical Sciences, Capital Normal University, Beijing 100048, China
| | - Wen Zhou
- School of Mathematical Sciences, Capital Normal University, Beijing 100048, China
| | - Zhixi Wang
- School of Mathematical Sciences, Capital Normal University, Beijing 100048, China
| | - Shao-Ming Fei
- School of Mathematical Sciences, Capital Normal University, Beijing 100048, China
- Max-Planck-Institute for Mathematics in the Sciences, 04103 Leipzig, Germany
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Zhou W, Li X. Fish diversity and selection of taxa for conservation in the Salween and Irrawaddy Rivers, Southeast Asia. Sci Rep 2024; 14:2393. [PMID: 38287045 PMCID: PMC10825156 DOI: 10.1038/s41598-024-51205-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 01/02/2024] [Indexed: 01/31/2024] Open
Abstract
Species diversity indices provide quantitative data for understanding the variations and trends in fish species diversity, as well as information on species richness and evenness. However, these diversity indices do not reflect differences in specific taxa, which can be of importance as key conservation targets, especially during the planning and construction of protected areas. In this study, simultaneously combining our improved traditional fish fauna analysis (TFFA) with the value of fish fauna presence (VFFP) methods, we studied fish diversity in the Salween and Irrawaddy basins. The results of the TFFA reflected the families (subfamilies) and genera that constitute the main body of fish diversity in the river basins. The results of the VFFP assessment showed which families (subfamilies) and genera were representative of certain characteristics in the basins. The VFFP scores of genera could be used as indicator indices and as priority taxa in the planning and construction of fish resource reserves. In this paper, we propose for the first time that the role and status of monotypic genera (genera comprising only a single species) in the conservation of fish diversity should not be ignored, and they should rather be a priority for protection.
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Affiliation(s)
- W Zhou
- Key Laboratory for Conserving Wildlife with Small Populations in Yunnan, Southwest Forestry University, 300 Bailongsi Road, Kunming, 650224, Yunnan, China.
| | - X Li
- Key Laboratory for Conserving Wildlife with Small Populations in Yunnan, Southwest Forestry University, 300 Bailongsi Road, Kunming, 650224, Yunnan, China
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Xu Z, Shi Z, Sun F, Zhang Y, Li W, Zhang J, Yang Y, Zhou W, Yang Z, Li C, Zhang Y. Spatiotemporal variability in the diffuse attenuation coefficient of sea ice. Opt Express 2024; 32:2959-2971. [PMID: 38297531 DOI: 10.1364/oe.506144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/01/2023] [Indexed: 02/02/2024]
Abstract
The diffuse attenuation coefficient (Kd) is known to be closely related to the light transmittance of sea ice, which plays a critical role in the energy balance and biological processes of the upper ocean. However, the commercial instruments cannot easily measure Kd in sea ice because sea ice is a solid. The authors of this study are developing an instrument with a high spectral solution to measure the irradiance profile of sea ice and the irradiance in the atmosphere. Three Kd experiments were carried out, including two in-situ experiments in the Liaodong Bay and one in the laboratory. The results showed that the Kd of the sea ice varied with depth, and the values in adjacent sea ice layers differed by up to 2 times. In addition, due to changes in the climate environment, the Kd of sea ice showed temporal variations. For example, there was a 1.38-fold difference in the Kd values of the surface layer of sea ice at different times in 2022. The values in different sea ice layers also showed different trends over time, and the coefficient of determination (R2) of Kd between adjacent layers over time was as low as 0.008. To explain the driving mechanism of spatio-temporal variability of Kd, an additional experiment focusing on the physical microstructure of sea ice was conducted in Liaodong Bay in 2022. The result shows that the change in air bubbles in the sea ice may be the main the reason for the change in Kd. For example, when the sea ice was exchanging brine and bubbles with the atmosphere above and the seawater below, the highly absorbent particles in it tend to remain in their original position. Considering that the total absorption coefficient changed slightly, the bubbles with the characteristic of intense scattering were found to be the main factor influencing the Kd changes. This conclusion is supported by the fact that the value of R2 between the bubbles and Kd was 0.52. If climatic changes have led to an increase in the volume of bubbles, the more bubbles will increase the scattering properties of sea ice and lead to an increase in Kd. Conversely, the reduced bubble volume would reduce the scattering properties of sea ice, which in turn would reduce Kd.
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Zhou R, Guo J, Feng X, Zhou W. Mechanisms of the role of proto-oncogene activation in promoting malignant transformation of mature B cells. Zhong Nan Da Xue Xue Bao Yi Xue Ban 2024; 49:113-121. [PMID: 38615172 PMCID: PMC11017026 DOI: 10.11817/j.issn.1672-7347.2024.230304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Indexed: 04/15/2024]
Abstract
Malignant tumors continue to pose a significant threat to human life and safety and their development is primarily due to the activation of proto-oncogenes and the inactivation of suppressor genes. Among these, the activation of proto-oncogenes possesses greater potential to drive the malignant transformation of cells. Targeting oncogenes involved in the malignant transformation of tumor cells has provided a novel approach for the development of current antitumor drugs. Several preclinical and clinical studies have revealed that the development pathway of B cells, and the malignant transformation of mature B cells into tumors have been regulated by oncogenes and their metabolites. Therefore, summarizing the key oncogenes involved in the process of malignant transformation of mature B cells and elucidating the mechanisms of action in tumor development hold significant importance for the clinical treatment of malignant tumors.
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Affiliation(s)
- Ruiqi Zhou
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha 410078.
| | - Jiaojiao Guo
- Department of Hematology, Xiangya Hospital, Central South University, Changsha 410008
| | - Xiangling Feng
- Xiangya School of Public Health, Central South University, Changsha 410006, China
| | - Wen Zhou
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha 410078.
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Luan X, Wang L, Song G, Zhou W. Innate immune responses to RNA: sensing and signaling. Front Immunol 2024; 15:1287940. [PMID: 38343534 PMCID: PMC10854198 DOI: 10.3389/fimmu.2024.1287940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 01/11/2024] [Indexed: 02/15/2024] Open
Abstract
Nucleic acids are among the most essential PAMPs (pathogen-associated molecular patterns). Animals have evolved numerous sensors to recognize nucleic acids and trigger immune signaling against pathogen replication, cellular stress and cancer. Many sensor proteins (e.g., cGAS, AIM2, and TLR9) recognize the molecular signature of infection or stress and are responsible for the innate immune response to DNA. Remarkably, recent evidence demonstrates that cGAS-like receptors acquire the ability to sense RNA in some forms of life. Compared with the nucleic-acid sensing by cGAS, innate immune responses to RNA are based on various RNA sensors, including RIG-I, MDA5, ADAR1, TLR3/7/8, OAS1, PKR, NLRP1/6, and ZBP1, via a broad-spectrum signaling axis. Importantly, new advances have brought to light the potential clinical application of targeting these signaling pathways. Here, we highlight the latest discoveries in the field. We also summarize the activation and regulatory mechanisms of RNA-sensing signaling. In addition, we discuss how RNA sensing is tightly controlled in cells and why the disruption of immune homeostasis is linked to disease.
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Affiliation(s)
- Xiaohan Luan
- Shenzhen Key Laboratory of Biomolecular Assembling and Regulation, Southern University of Science and Technology, Shenzhen, Guangdong, China
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Lei Wang
- Department of Systems Biology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Guangji Song
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Wen Zhou
- Shenzhen Key Laboratory of Biomolecular Assembling and Regulation, Southern University of Science and Technology, Shenzhen, Guangdong, China
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong, China
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Zhou W, Zheng Q, Huang M, Wang J, Gan X. Development and validation of nurse's assessment ability questionnaire in delirium subtypes: Based on Delphi expert consensus. PLoS One 2024; 19:e0297063. [PMID: 38261557 PMCID: PMC10805299 DOI: 10.1371/journal.pone.0297063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 12/27/2023] [Indexed: 01/25/2024] Open
Abstract
BACKGROUND Delirium, a common occurrence in clinical work, can be divided into three subtypes according to Diagnostic and Statistical Manual of Mental Disorders, 5 th Edition (DSM-5). Each subtype has its special significance and focus. As the primary caregivers and observer of delirious patients, nurses should be able to quickly and accurately indentify each subtype. Therefore, it is necessary to clarify nurses' assessment ability of delirium subtypes. However, there is currently no suitable questionnaire available for investigating nurses' assessment ability of delirium subtypes. OBJECTIVE To develop a scientifically validated questionnaire for assessing nursing assessment ability of delirium subtypes based on Knowledge-Attitude-Practice(KAP) Model. METHODS The questionnaire was conducted from October 2021 to February 2022 to assess the KAP status of nurses the regarding delirium subtype. A two-round Delphi Method was employed to revise the draft questionnaire, ensuring the importance and rationality of each item. Ten experts specializing in critically ill patients, clinical nursing, and nursing management were invited from seven provinces in China for the Delphi process. Additionally, we validated the reliability and validity of the questionnaire. RESULTS The return rate in the first and second rounds were 83% and 100%, respectively. The individual authority coefficients for the two rounds of correspondence ranged from 0.787 to 0.987, while the overall authority coefficient of experts was 0.866. Kendall's coefficient of coordination for the importance scores were found to be 0.192 and 0.156, respectively, whereas those for rationality scores were calculated as 0.149 and 0.141, respectively. Notably, all mean values of importance and rationality scores in the two rounds were exceeded a threshold of 4.10 across both rounds of assessment with coefficient variations (CV) ranging from 0.00 to 0.19 for importance ratings and 0.00 to 0.16 for rationality ratings, both of which were <0.25. Experts proposed modifications to eleven items while introducing four new ones into consideration during this process; thus ensuring that reliability and validity standards were met by the final questionnaire design which consists of a total of thirty-seven items distributed across four dimensions: delirium subtype-related knowledge, assessment attitude, assessment practice, and knowledge source-thereby establishing its clinical relevance as a reliable scientific instrument. CONCLUSION The development process is both scientific and theoretical, encompassing reliable expert correspondence results and a diverse range of question formats. As thus, effectively captures the current landscape of delirium subtypes assessment among clinical nurses from multiple perspectives, including knowledge level and source, attitude, assessment behavior, and assessment barriers. It offers comprehensive and detailed insights.
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Affiliation(s)
- Wen Zhou
- Department of Nursing, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Second Department of Nursing School, Chongqing Medical University, Chongqing, China
| | - Qiulan Zheng
- Department of Nursing, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Second Department of Nursing School, Chongqing Medical University, Chongqing, China
| | - Miao Huang
- Department of Nursing, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Second Department of Nursing School, Chongqing Medical University, Chongqing, China
- Basic Department of Nursing School, Chongqing Medical University, Chongqing, China
| | - Jiao Wang
- Joint Surgery Department, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiuni Gan
- Department of Nursing, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Ye W, Tang Q, Zhou T, Zhou C, Fan C, Wang X, Wang C, Zhang K, Liao G, Zhou W. Design, synthesis and biological evaluation of the positional isomers of the galactose conjugates able to target hepatocellular carcinoma cells via ASGPR-mediated cellular uptake and cytotoxicity. Eur J Med Chem 2024; 264:115988. [PMID: 38039790 DOI: 10.1016/j.ejmech.2023.115988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/19/2023] [Accepted: 11/20/2023] [Indexed: 12/03/2023]
Abstract
Galactose as a recognizing motif for asialoglycoprotein receptor (ASGPR) is a widely accepted vector to deliver cytotoxic agents in the therapy of hepatocellular carcinoma (HCC), however, the individual hydroxyl group of galactose (Gal) contributed to recognizing ASGPR is obscure and remains largely unanswered in the design of glycoconjugates. Herein, we designed and synthesized five positional isomers of Gal-anthocyanin Cy5.0 conjugates and three Gal-doxorubicin (Dox) isomers, respectively. The fluorescence intensity of Gal-Cy5.0 conjugates accumulated in cancer cells hinted the optimal modification sites of positions C2 and C6. Comparing to the cytotoxicity of other conjugates, C2-Gal-Dox (11) was the most potent. Moreover, Gal-Dox conjugates significantly the toxicity of Dox. A progressively lower internalization capacity and siRNA technology implied the cellular uptake and cytotoxicity directly related to the ASGPR expression level. Accordingly, position C2 of galactose may be the best substitution site via ASGPR mediation in the design of anti-HCC glycoconjugates.
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Affiliation(s)
- Wenchong Ye
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 200241, Shanghai, China; School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, E. 232, University Town, Waihuan Rd, Panyu, Guangzhou, 510006, Guangdong, China; Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China
| | - Qun Tang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 200241, Shanghai, China
| | - Tiantian Zhou
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 200241, Shanghai, China
| | - Cui Zhou
- School of Pharmaceutical Sciences, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Sun Yat-sen University, Guangzhou, 510006, China
| | - Chuangchuang Fan
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 200241, Shanghai, China
| | - Xiaoyang Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 200241, Shanghai, China
| | - Chunmei Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 200241, Shanghai, China
| | - Keyu Zhang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 200241, Shanghai, China
| | - Guochao Liao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, E. 232, University Town, Waihuan Rd, Panyu, Guangzhou, 510006, Guangdong, China.
| | - Wen Zhou
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 200241, Shanghai, China; Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China.
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Zhao J, Li Q, Tan Q, Liang T, Zhou W, Liu N, Chen Z. Ring geometric effect on the performance of AlGaN-based deep-ultraviolet light-emitting diodes. Opt Express 2024; 32:1275-1285. [PMID: 38297682 DOI: 10.1364/oe.507455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/14/2023] [Indexed: 02/02/2024]
Abstract
In this study, we fabricated and characterized various parallel flip-chip AlGaN-based deep-ultraviolet (DUV) micro-ring LEDs, including changes in ring dimensions as well as the p-GaN-removed region widths at the outer micro-ring, respectively (PRM LEDs). It is revealed that the LED chips with smaller mesa withstand higher current density and deliver considerably higher light output power density (LOPD), under the same proportion of the hole to the entire mesa column (before it is etched into ring) within the limits of dimensions. However, as the ring-shaped mesa decreases, the LOPD begins to decline because of etching damage. Subsequently, at the same external diameter, the optical performance of micro-ring LEDs with varied internal diameters is studied. Meanwhile, the influence of different structures on light extraction efficiency (LEE) is studied by employing a two-dimensional (2D)-finite-difference time-domain (FDTD) method. In addition, the expand of the p-GaN-removed region at the outer micro-ring as well as the corresponding effective light emission region have some influence to LOPD. The PRM-23 LED (with an external diameter of 90 µm, an internal diameter of 22 µm, and a p-GaN-removed region width of 8 µm) has an LOPD of 53.36 W/cm2 with a current density of 650 A/cm2, and an external quantum efficiency (EQE) of 6.17% at 5 A/cm2. These experimental observations provide a comprehensive understanding of the optical and electrical performance of DUV micro-LEDs for future applications.
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Hossain MP, Zhou W, Leung MYT, Yuan HY. Association of air pollution and weather conditions during infection course with COVID-19 case fatality rate in the United Kingdom. Sci Rep 2024; 14:683. [PMID: 38182658 PMCID: PMC10770173 DOI: 10.1038/s41598-023-50474-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 12/20/2023] [Indexed: 01/07/2024] Open
Abstract
Although the relationship between the environmental factors, such as weather conditions and air pollution, and COVID-19 case fatality rate (CFR) has been found, the impacts of these factors to which infected cases are exposed at different infectious stages (e.g., virus exposure time, incubation period, and at or after symptom onset) are still unknown. Understanding this link can help reduce mortality rates. During the first wave of COVID-19 in the United Kingdom (UK), the CFR varied widely between and among the four countries of the UK, allowing such differential impacts to be assessed. We developed a generalized linear mixed-effect model combined with distributed lag nonlinear models to estimate the odds ratio of the weather factors (i.e., temperature, sunlight, relative humidity, and rainfall) and air pollution (i.e., ozone, [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text]) using data between March 26, 2020 and September 15, 2020 in the UK. After retrospectively time adjusted CFR was estimated using back-projection technique, the stepwise model selection method was used to choose the best model based on Akaike information criteria and the closeness between the predicted and observed values of CFR. The risk of death reached its maximum level when the low temperature (6 °C) occurred 1 day before (OR 1.59; 95% CI 1.52-1.63), prolonged sunlight duration (11-14 h) 3 days after (OR 1.24; 95% CI 1.18-1.30) and increased [Formula: see text] (19 μg/m3) 1 day after the onset of symptom (OR 1.12; 95% CI 1.09-1.16). After reopening, many COVID-19 cases will be identified after their symptoms appear. The findings highlight the importance of designing different preventive measures against severe illness or death considering the time before and after symptom onset.
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Affiliation(s)
- M Pear Hossain
- Department of Biomedical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region, China
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Kowloon, Hong Kong Special Administrative Region, China
- Laboratory of Data Discovery for Health Limited, Hong Kong Science Park, New Territories, Hong Kong Special Administrative Region, China
| | - Wen Zhou
- Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences, Fudan University, Shanghai, China
| | - Marco Y T Leung
- School of Marine Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Hsiang-Yu Yuan
- Department of Biomedical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region, China.
- Centre for Applied One Health Research and Policy Advice, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Regions, China.
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Shim A, Luan X, Zhou W, Crow Y, Maciejowski J. Mutations in the non-catalytic polyproline motif destabilize TREX1 and amplify cGAS-STING signaling. bioRxiv 2024:2024.01.04.574136. [PMID: 38260344 PMCID: PMC10802300 DOI: 10.1101/2024.01.04.574136] [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] [Indexed: 01/24/2024]
Abstract
The cGAS-STING pathway detects cytosolic DNA and activates a signaling cascade that results in a type I interferon (IFN) response. The endoplasmic reticulum (ER)-associated exonuclease TREX1 suppresses cGAS-STING by eliminating DNA from the cytosol. Mutations that compromise TREX1 function are linked to autoinflammatory disorders, including systemic lupus erythematosus (SLE) and Aicardi-Goutières syndrome (AGS). Despite key roles in regulating cGAS-STING and suppressing excessive inflammation, the impact of many disease-associated TREX1 mutations - particularly those outside of the core catalytic domains - remains poorly understood. Here, we characterize a recessive AGS-linked TREX1 P61Q mutation occurring within the poorly characterized polyproline helix (PPII) motif. In keeping with its position outside of the catalytic core or ER targeting motifs, neither the P61Q mutation, nor aggregate proline-to-alanine PPII mutation, disrupt TREX1 exonuclease activity, subcellular localization, or cGAS-STING regulation in overexpression systems. Introducing targeted mutations into the endogenous TREX1 locus revealed that PPII mutations destabilize the protein, resulting in impaired exonuclease activity and unrestrained cGAS-STING activation. Overall, these results demonstrate that TREX1 PPII mutations, including P61Q, impair proper immune regulation and lead to autoimmune disease through TREX1 destabilization.
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Affiliation(s)
- Abraham Shim
- Molecular Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Xiaohan Luan
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Wen Zhou
- Department of Immunology and Microbiology, School of Life Sciences, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yanick Crow
- MRC Human Genetics Unit, Institute of Genetics and Cancer, The University of Edinburgh, Edinburgh, UK
| | - John Maciejowski
- Molecular Biology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
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Zhang R, Zhou W, Tian W, Zhang Y, Zhang J, Luo J. A stratospheric precursor of East Asian summer droughts and floods. Nat Commun 2024; 15:247. [PMID: 38172117 PMCID: PMC10764360 DOI: 10.1038/s41467-023-44445-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 12/13/2023] [Indexed: 01/05/2024] Open
Abstract
East Asian floods and droughts in summer show a typical dipole pattern with a north-south oscillation centered near 30°N, called the southern drought-northern flood (SDNF) pattern, which has caused significant economic losses and casualties in the past three decades. However, effective explanations and predictions are still challenging, making suitable disaster prevention more difficult. Here, we find that a key predictor of this dipole pattern is the Quasi-Biennial Oscillation (QBO, tropical winds above 10 km). The QBO can modulate precipitation in East Asia, contributing the largest explained variation of this dipole pattern. A QBO-included statistical model can effectively predict summer floods and droughts at least three months in advance and explain at least 75.8% of precipitation variation. More than 30% of the SDNF pattern is attributed to the QBO in July-August 2020 and 2021. This result suggests a good prospect for using the tropical mid- to upper atmosphere in seasonal forecasts for summer.
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Affiliation(s)
- Ruhua Zhang
- Key Laboratory of Polar Atmosphere-ocean-ice System for Weather and Climate, Ministry of Education, Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences, Fudan University, Shanghai, China
| | - Wen Zhou
- Key Laboratory of Polar Atmosphere-ocean-ice System for Weather and Climate, Ministry of Education, Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences, Fudan University, Shanghai, China.
- Key Laboratory for Polar Science of the MNR, Polar Research Institute of China, Shanghai, China.
| | - Wenshou Tian
- Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University, Lanzhou, China
| | - Yue Zhang
- Key Laboratory of Polar Atmosphere-ocean-ice System for Weather and Climate, Ministry of Education, Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences, Fudan University, Shanghai, China
| | - Junxia Zhang
- Lanzhou Central Meteorological Observatory of Gansu Province, Lanzhou, China
| | - Jiali Luo
- Key Laboratory for Semi-Arid Climate Change of the Ministry of Education, College of Atmospheric Sciences, Lanzhou University, Lanzhou, China
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Zhu Y, Jian X, Chen S, An G, Jiang D, Yang Q, Zhang J, Hu J, Qiu Y, Feng X, Guo J, Chen X, Li Z, Zhou R, Hu C, He N, Shi F, Huang S, Liu H, Li X, Xie L, Zhu Y, Zhao L, Jiang Y, Li J, Wang J, Qiu L, Chen X, Jia W, He Y, Zhou W. Targeting gut microbial nitrogen recycling and cellular uptake of ammonium to improve bortezomib resistance in multiple myeloma. Cell Metab 2024; 36:159-175.e8. [PMID: 38113887 DOI: 10.1016/j.cmet.2023.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 10/17/2023] [Accepted: 11/30/2023] [Indexed: 12/21/2023]
Abstract
The gut microbiome has been found to play a crucial role in the treatment of multiple myeloma (MM), which is still considered incurable due to drug resistance. In previous studies, we demonstrated that intestinal nitrogen-recycling bacteria are enriched in patients with MM. However, their role in MM relapse remains unclear. This study highlights the specific enrichment of Citrobacter freundii (C. freundii) in patients with relapsed MM. Through fecal microbial transplantation experiments, we demonstrate that C. freundii plays a critical role in inducing drug resistance in MM by increasing levels of circulating ammonium. The ammonium enters MM cells through the transmembrane channel protein SLC12A2, promoting chromosomal instability and drug resistance by stabilizing the NEK2 protein. We show that furosemide sodium, a loop diuretic, downregulates SLC12A2, thereby inhibiting ammonium uptake by MM cells and improving progression-free survival and curative effect scores. These findings provide new therapeutic targets and strategies for the intervention of MM progression and drug resistance.
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Affiliation(s)
- Yinghong Zhu
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Xingxing Jian
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shuping Chen
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Gang An
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Duanfeng Jiang
- Department of Hematology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qin Yang
- Department of Hematology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jingyu Zhang
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Jian Hu
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yi Qiu
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiangling Feng
- Xiangya School of Public Health, Central South University, Changsha, Hunan, China
| | - Jiaojiao Guo
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Xun Chen
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Zhengjiang Li
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Ruiqi Zhou
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Cong Hu
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Nihan He
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Fangming Shi
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Siqing Huang
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China
| | - Hong Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xin Li
- Department of Hematology, Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lu Xie
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yan Zhu
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lia Zhao
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yichuan Jiang
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jian Li
- Peking Union Medical College Hospital, Chinese Academy Medical Society & Peking Union Medical College, Beijing, China
| | - Jinuo Wang
- Peking Union Medical College Hospital, Chinese Academy Medical Society & Peking Union Medical College, Beijing, China
| | - Lugui Qiu
- State Key Laboratory of Experimental Hematology, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Tianjin, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Wei Jia
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Yanjuan He
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Wen Zhou
- Haihe Laboratory of Cell Ecosystem, State Key Laboratory of Experimental Hematology, Bioinformatics Center, National Clinical Research Center for Geriatric Disorders, Key Laboratory for Carcinogenesis and Invasion, Chinese Ministry of Education, Key Laboratory of Carcinogenesis, Chinese Ministry of Health, Furong Laboratory, Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan, China; Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, Hunan, China; Xiangya School of Public Health, Central South University, Changsha, Hunan, China.
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Du J, Chen X, Wang Y, Yang Z, Wu D, Zhang Q, Liu Y, Zhu X, Jiang S, Cao Y, Chen C, Du L, Zhou W, Lee SK, Xia H, Hei M. Regional variations in retinopathy of prematurity incidence for preterm infants <32 weeks' gestation in China. Public Health 2024; 226:91-98. [PMID: 38029699 DOI: 10.1016/j.puhe.2023.10.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/30/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023]
Abstract
OBJECTIVES National-level data on the incidence of retinopathy of prematurity (ROP) in different regions of China is insufficient. This study aimed to compare ROP incidences and care practices in different regions of China and their relationship with regional gross domestic product (GDP) per capita. STUDY DESIGN Retrospective cohort study. METHODS All infants born at <32 weeks gestational age (GA) and admitted to 70 neonatal intensive care units (NICUs) from January 1, 2019, to December 31, 2020, were enrolled. Hospitals were categorised into three regional groups according to geographical locations and GDP per capita from high to low: Eastern, Central, and Western China. The incidence of death or ROP, and care practices were compared among the groups. RESULTS A total of 18,579 infants were enrolled. Median GA was 29.9 (interquartile range 28.4-31.0) weeks and birth weight was 1318.1 (317.2) g. The percentage of GA <28 weeks, complete administration of antenatal steroids, and weight gain velocity during NICU stay were highest in Eastern China and lowest in Western China (all P < 0.01). In Eastern, Central, and Western China, the rates of death or any stage of ROP were 33.3%, 38.5%, and 39.2%, respectively (P < 0.01). CONCLUSIONS There were considerable regional disparities in ROP incidence in preterm infants with GA <32 weeks in China. The incidence of death or ROP ranged from high to low in Western, Central, and Eastern China.
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Affiliation(s)
- J Du
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - X Chen
- Department of Neonatology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Wang
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Z Yang
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - D Wu
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - Q Zhang
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - Y Liu
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - X Zhu
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China
| | - S Jiang
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - Y Cao
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - C Chen
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - L Du
- Neonatal Intensive Care Unit, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China; National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, China
| | - W Zhou
- NHC Key Laboratory of Neonatal Diseases, Fudan University, Children's Hospital of Fudan University, Shanghai, China; Department of Neonatology, Children's Hospital of Fudan University, Shanghai, China
| | - S K Lee
- Maternal-Infant Care Research Centre and Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - H Xia
- Department of Neonatology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - M Hei
- Neonatal Center, Beijing Children's Hospital, Capital Medical University, Beijing, China; National Center of Children's Health, Beijing, China.
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49
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Zhou W, Liao Y, Wang W, Sun Y, Li Q, Liu S, Tang J, Li L, Wang X. Efficacy of Different Powers of Low-Level Red Light in Children for Myopia Control. Ophthalmology 2024; 131:48-57. [PMID: 37634757 DOI: 10.1016/j.ophtha.2023.08.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 08/08/2023] [Accepted: 08/21/2023] [Indexed: 08/29/2023] Open
Abstract
PURPOSE To compare the efficacy and safety of low-level red light (LRL) in controlling myopia progression at 3 different powers: 0.37 mW, 0.60 mW, and 1.20 mW. DESIGN Single-center, single-masked, randomized controlled trial. PARTICIPANTS Two hundred children aged 6-15 with myopia of -0.50 diopter (D) or more and astigmatism of -2.50 D or less were enrolled from April to May 2022. Follow-up ended in December 2022. METHODS Participants were assigned randomly to 3 intervention groups and 1 control group (1:1:1:1). All participants wore single-vision spectacles. Moreover, the intervention group randomly received LRL at 3 different powers twice daily for 3 minutes per session, with a minimum 4-hour interval. MAIN OUTCOME MEASURES Changes in spherical equivalent (SE), axial length (AL), and subfoveal choroidal thickness (SFCT) were measured. RESULTS After 6 months, SE progression was significantly lower in the 0.37-mW group (0.01 D; 95% confidence interval [CI], -0.12 to 0.15), 0.60-mW group (-0.05 D; 95% CI, -0.18 to 0.07), and 1.20-mW group (0.16 D; 95% CI, 0.03 to 0.30) compared to the control group (-0.22 D; 95% CI, -0.50 to 0.30; adjusted P < 0.001 for all). AL changes in the 0.37-mW group (0.04 mm; 95% CI, -0.01 to 0.08), 0.60-mW group (0.00 mm; 95% CI, -0.05 to 0.05), and 1.20-mW group (-0.04 mm; 95% CI, -0.08 to 0.01) were significantly smaller than the control group (0.27 mm; 95% CI, 0.22 to 0.33; adjusted P < 0.001 for all). Similarly, increases in SFCT were significantly greater in the 0.37-mW group (22.63 μm; 95% CI, 12.13 to 33.34 μm), 0.60-mW group (36.17 μm; 95% CI, 24.37 to 48.25 μm), and 1.20-mW group (42.59 μm; 95% CI, 23.43 to 66.24 μm) than the control group (-5.07 μm; 95% CI, -10.32 to -0.13 μm; adjusted P < 0.001 for all). No adverse events were observed. CONCLUSIONS LRL effectively controlled myopia progression at 0.37 mW, 0.60 mW, and 1.20 mW. Further research is required. FINANCIAL DISCLOSURE(S) The author(s) have no proprietary or commercial interest in any materials discussed in this article.
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Affiliation(s)
- Wen Zhou
- Department of Ophthalmology, The First People's Hospital of Xuzhou, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; First School of Clinical Medicine of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Ya Liao
- Department of Ophthalmology, The First People's Hospital of Xuzhou, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Wei Wang
- Department of Community and Health Education, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yanmei Sun
- Department of Ophthalmology, The First People's Hospital of Xuzhou, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Qin Li
- Department of Ophthalmology, The First People's Hospital of Xuzhou, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Siqi Liu
- Department of Ophthalmology, The First People's Hospital of Xuzhou, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Jie Tang
- Department of Community and Health Education, School of Public Health, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Lin Li
- Department of Ophthalmology, The First People's Hospital of Xuzhou, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; Medical Technology School of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiaojuan Wang
- Department of Ophthalmology, The First People's Hospital of Xuzhou, The Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China; First School of Clinical Medicine of Xuzhou Medical University, Xuzhou, Jiangsu, China; Suzhou Vocational Health College, Suzhou, Jiangsu, China.
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50
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Zhou W, Sheng Y, Alizadeh A, Baghaei S, Lv Q, Shamsborhan M, Nasajpour-Esfahani N, Rezaie R. Synthesis and characterization of Alg/Gel/n-HAP/MNPs porous nanocomposite adsorbent for efficient water conservancy and removal of methylene blue in aqueous environments: Kinetic modeling and artificial neural network predictions. J Environ Manage 2024; 349:119446. [PMID: 37918240 DOI: 10.1016/j.jenvman.2023.119446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 10/06/2023] [Accepted: 10/20/2023] [Indexed: 11/04/2023]
Abstract
In this study, a new porous nanocomposite adsorbent for water conservancy was synthesized using the freeze-drying technique to adsorb a cationic dye (Methylene Blue) in an aqueous environment. The nanocomposite adsorbent was synthesized using natural polymers, gelatin, and sodium alginate, and hydroxyapatite and magnetic iron oxide nanoparticles was incorporated into the polymer network to improve mechanical properties and increase the surface-to-volume ratio. To confirm the structure and morphology of the sample, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscope (SEM) techniques were employed. In addition, the magnetic properties of the synthesis of MNPs and porous nanocomposite were determined using value stream mapping (VSM) and dynamic light scattering (DLS). The adsorption of Methylene Blue (MB) was studied as a function of effective physical and variable parameters, such as time, temperature, pH, and initial concentration. The synthesized porous nanocomposite adsorbent exhibited a high adsorption capacity of 473.2 mg g-1 and followed pseudo-second-order kinetics. Additionally, the maximum adsorption capacity was observed at an initial concentration of 534.9 mg g-1. The adsorbent was also sensitive to temperature changes and was well-described thermodynamically and isothermally by the Freundlich isotherm model. Two artificial neural networks (ANNs) were also developed to investigate the properties of the synthesized nanocomposites. In the first ANN, the properties of the nanocomposites, including pore size, porosity, compressive strength, and elastic modulus, were predicted based on the variations in the weight percentages of gelatin and hydroxyapatite. In the second ANN, the effects of changes in temperature and initial concentration on the adsorption of MB by the synthesized nanocomposite samples were predicted. The ANNs' predictions indicated that increasing the weight percentage of hydroxyapatite nanoparticles and gelatin enhances the physical, mechanical, and adsorption performance of the synthesized porous nanocomposites. The best results were achieved for the sample containing 40 wt % of gelatin and 30 wt % of hydroxyapatite nanoparticles. Furthermore, the ANN models demonstrated that increasing the temperature and initial concentration resulted in an increase in the amount of MB adsorbed.
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Affiliation(s)
- Wen Zhou
- School of Architecture and Engineering, Tongling University, Tongling, 244061, China.
| | - Yifei Sheng
- School of Engineering, University of Manchester, Manchester, United Kingdom
| | - As'ad Alizadeh
- Department of Civil Engineering, College of Engineering, Cihan University-Erbil, Erbil, Iraq
| | - Sh Baghaei
- Department of Mechanical Engineering, Islamic Azad University, Esfahan, Iran
| | - Qing Lv
- Chemical Engineering Department, Guangxi University, Nanning, 530000, China
| | - Mahmoud Shamsborhan
- Department of Mechanical Engineering, College of Engineering, University of Zakho, Zakho, Iraq
| | - Navid Nasajpour-Esfahani
- Department of Material Science and Engineering, Georgia Institute of Technology, Atlanta, 30332, USA
| | - R Rezaie
- Department of Mechanical Engineering, Islamic Azad University, Esfahan, Iran
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