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China CDC weekly 2024年第15期6卷 318-323,I0006,I0007页

作者： Ying Zhang Shujie Zang Xu Zhang Zhiqiang Qu Xinyu Zhou Leesa lin Zhiyuan hou School of Public Health and Global Health InstituteFudan UniversityShanghaiChina Department of Infectious Disease Epidemiology London School of Hygiene&Tropical MedicineLondonUnited Kingdom Laboratory of Data Discovery for Health(D24H) Hong Kong Science ParkHong Kong Special Administrative RegionChina

What is already known about this topic?The significant disparities in global coronavirus disease 2019(COVID-19)vaccine coverage hamper the pace of epidemic *** is a need to better understand the factors contributing to disparities in COVID-19 vaccination rates across *** is added by this report?This report revealed significant associations between vaccination coverage and various country-level *** pandemic preparedness,higher levels of trust,and a lower proportion of young population aged 0–14 were strongly correlated with higher COVID-19 vaccination *** are the implications for public health practices?Our findings emphasize the need for enhanced pandemic preparedness and governance,coupled with building trust in government and healthcare *** also needs to address the hesitancy of vaccinating children and adolescents aged 0–14 as the vaccination campaign progresses.

关键词： vaccination vaccine COV

Surface reconstruction and structural transformation of twodimensional Ni-Fe MOFs for oxygen evolution in seawater media

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Nano Research 2024年第4期17卷 2429-2437页

作者： Liyuan Xiao Xue Bai Jingyi Han Tianmi tang Siyu Chen Hui Qi Changmin hou Fuquan Bai Zhenlu Wang Jingqi Guan Institute of Physical Chemistry College of ChemistryJilin UniversityChangchun 130021China The Second Hospital of Jilin University Changchun 130021China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012China Laboratory of Theoretical and Computational Chemistry Institute of Theoretical ChemistryCollege of ChemistryChangchun 130023China

As a four-electron transfer reaction,oxygen evolution reaction(OER)is limited by large overpotential and slow ***,we in-situ synthesized two-dimensional(2D)Ni-Fe metal-organic framework nanosheets on nickel foam(NixFe-TPA/NF,TPA=terephthalic acid)for oxygen evolution in alkaline and alkaline seawater *** 1 M KOH,Ni3Fe-TPA/NF shows a low overpotential(η10)of 189 mV at 10 mA·cm^(-2) and an ultra-low overpotential of only 260 mV at 500 mA·cm^(-2).In alkaline seawater,Ni3Fe-TPA/NF still provides impressive OER performance,with anη10 of 265 ***-situ Raman characterization results show that the phase transition occurs during the OER,and Ni3FeOOH with more oxygen vacancies is in-situ formed,reducing the OER energy *** functional theory(DFT)reveals that the synergy between Ni and Fe reduces the energy barrier and accelerates the rate-determining *** addition,the ultra-thin 2D sheet structure and the close combination of Ni3FeOOH and highly conductive NF support ensure the high catalytic OER ***,the surface reconstruction and structural modification strategy can be used to design and prepare high-performance OER electrocatalysts for energy-related applications.

关键词： density functional theory(DFT)calculation Ni3FeOOH oxygen evolution reaction seawater electrolysis surface reconstruction

Nanoparticle delivery for central nervous system diseases and its clinical application

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Nano Research 2024年第7期17卷 6305-6322页

作者： lin tang Rui Zhang Yusi Wang Mohan Liu Die Hu Yuanda Wang Li Yang Department of Biotherapy Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu 610041China

In the treatment of central nervous system(CNS)diseases such as glioma,Alzheimer's disease(AD)and Parkinson's disease(PD),drugs are expected to reach specific areas of the brain to achieve the desired *** a growing number of therapeutic targets have been identified in preclinical studies,the ones that can ultimately be used in the clinic are ***,the research process and clinical application of drugs for treating CNS diseases are still large *** barriers such as the blood‒brain barrier(BBB)act as selective permeable membranes,allowing only certain molecules to enter the brain;this barrier is the major obstacle restricting the arrival of most drugs to brain ***,nanoparticles,including lipid-based,cell-derived biomimetic,polymeric and inorganic nanoparticles,have gained increasing attention because of their ability to cross physiological barriers,and could play an important role as delivery carriers and ***,clinical applications of nanoparticles in CNS diseases are *** review focuses on the progress of current research on the use of nanoparticles for the treatment of CNS diseases to provide additional insight into the treatment of CNS diseases.

关键词： nanoparticles central nervous system(CNS)diseases clinical applications delivery carriers immunomodulators

Integrin β5 subunit regulates hyperglycemia-induced vascular endothelial cell apoptosis through FoxO1-mediated macroautophagy

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Chinese Medical Journal 2024年第5期137卷 565-576页

作者： Xuze lin Sizhuang Huang Side Gao Jinxing Liu Jiong tang Mengyue Yu Department of Cardiology Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100037China Department of Cardiology Fuwai Yunnan Cardiovascular HospitalKunmingYunnan 650000China

Background:Hyperglycemia frequently induces apoptosis in endothelial cells and ultimately contributes to microvascular dysfunction in patients with diabetes mellitus(DM).Previous research reported that the expression of integrins as well as their ligands was elevated in the diseased vessels of DM ***,the association between integrins and hyperglycemia-induced cell death is still *** research was designed to investigate the role played by integrin subunit β5(ITGB5)in hyperglycemia-induced endothelial cell ***:We used leptin receptor knockout(Lepr-KO)(db/db)mice as spontaneous diabetes animal *** deletion of ITGB5 in endothelial cell was achieved by injecting vascular targeted adeno-associated virus via tail ***,we also applied small interfering RNA in vitro to study the mechanism of ITGB5 in regulating high glucose-induced cell ***:ITGB5 and its ligand,fibronectin,were both upregulated after exposure to high glucose in vivo and in ***5 knockdown alleviated hyperglycemia-induced vascular endothelial cell apoptosis and microvascular rarefaction in *** vitro analysis revealed that knockdown of either ITGB5 or fibronectin ameliorated high glucose-induced apoptosis in human umbilical vascular endothelial cells(HUVECs).In addition,knockdown of ITGB5 inhibited fibronectin-induced HUVEC apoptosis,which indicated that the fibronectin-ITGB5 interaction participated in high glucose-induced endothelial cell *** using RNA-sequencing technology and bioinformatic analysis,we identified Forkhead Box Protein O1(FoxO1)as an important downstream target regulated by ***,we demonstrated that the excessive macroautophagy induced by high glucose can contribute to HUVEC apoptosis,which was regulated by the ITGB5-FoxO1 ***:The study revealed that high glucose-induced endothelial cell apoptosis was positively regulated by ITGB5,which suggested that ITGB5 could potentially be used

关键词： Endothelial cell apoptosis Integrin Autophagy Diabetes

Silica-modified Pt/TiO_(2) catalysts with tunable suppression of strong metal-support interaction for cinnamaldehyde hydrogenation

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Chinese Journal of Chemical Engineering 2024年第6期70卷 189-198页

作者： Zhengjian hou Yuanyuan Zhu Hua Chi Li Zhao Huijie Wei Yanyan Xi Lishuang Ma Xiang Feng Xufeng lin College of Chemistry and Chemical Engineering China University of Petroleum(East China)Qingdao 266580China Advanced Chemical Engineering and Energy Materials Research Center China University of Petroleum(East China)Qingdao 266580China State Key Laboratory of Heavy Oil Processing China University of Petroleum(East China)Qingdao 266580China

Tuning Strong Metal-support Interactions(SMSI)is a key strategy to obtain highly active catalysts,but conventional methods usually enable TiO_(x) encapsulation of noble metal components to minimize the exposure of noble *** study demonstrates a catalyst preparation method to modulate a weak encapsulation of Pt metal nanoparticles(NPs)with the supported TiO_(2),achieving the moderate suppression of SMSI *** introduction of silica inhibits this encapsulation,as reflected in the characterization results such as XPS and HRTEM,while the Ti^(4+) to Ti^(3+) conversion due to SMSI can still be found on the support ***,the hydrogenation of cinnamaldehyde(CAL)as a probe reaction revealed that once this encapsulation behavior was suppressed,the adsorption capacity of the catalyst for small molecules like H_(2) and CO was enhanced,which thereby improved the catalytic activity and facilitated the hydrogenation of ***,the introduction of SiO_(2) also changed the surface structure of the catalyst,which inhibited the occurrence of the acetal reaction and improved the conversion efficiency of C=O and C=C *** manipulation of SMSI formation and its consequence on the performance in catalytic hydrogenation reactions are discussed.

关键词： Pt catalyst Silica modification Hydrogenation Cinnamaldehyde Strong metal-support interaction

Growth and inhibition of zinc anode dendrites in Zn-air batteries:Model and experiment

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Chinese Journal of Chemical Engineering 2024年第3期67卷 268-281页

作者： Cuiping He Qingyi Gou Yanqing hou Jianguo Wang Xiang You Ni Yang lin Tian Gang Xie Yuanliang Chen Kunming University of Science and Technology State Key Laboratory of Complex Nonferrous Metal Resources Clean UtilizationKunming 650093China Kunming University of Science and Technology Faculty of Metallurgical and Energy EngineeringKunming 650093China China Copper Co.Ltd KunmingYunnan 650051China State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals Kunming 650051China Sichuan Shunying Power Battery Materials Co.Ltd Sichuan 620076China

Zinc(Zn)-air batteries are widely used in secondary battery research owing to their high theoretical energy density,good electrochemical reversibility,stable discharge performance,and low cost of the anode active material ***,the Zn anode also leads to many challenges,including dendrite growth,deformation,and hydrogen precipitation *** this context,Zn dendrite growth has a greater impact on the cycle *** this dissertation,a dendrite growth model for a Zn-air battery was established based on electrochemical phase field theory,and the effects of the charging time,anisotropy strength,and electrolyte temperature on the morphology and growth height of Zn dendrites were studied.A series of experiments was designed with different gradient influencing factors in subsequent experiments to verify the theoretical simulations,including elevated electrolyte temperatures,flowing electrolytes,and pulsed *** simulation results show that the growth of Zn dendrites is controlled mainly by diffusion and mass transfer processes,whereas the electrolyte temperature,flow rate,and interfacial energy anisotropy intensity are the main *** experimental results show that an optimal electrolyte temperature of 343.15 K,an optimal electrolyte flow rate of 40 ml·min^(-1),and an effective pulse charging mode.

关键词： Zn-air battery Zinc anode Zinc dendrite Simulated dendrite growth Inhibit dendrite growth Phase-field model

Carbon-based supports for the electrocatalysis under industrially relevant conditions

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Science China Chemistry 2024年第4期67卷 1051-1055页

作者： Xue Yang Xianrui Gu Yang Song Guolin hou Cheng Wang Lichen Liu Wei lin Center for Renewable Energy SINOPEC Research Institute of Petroleum ProcessingBeijing 100083China Engineering Research Center of Advanced Rare Earth Materials Department of ChemistryTsinghua UniversityBeijing 100084China

1 *** materials are ideal catalyst supports for functional metal components due to their appropriate physicochemical characteristics,such as high surface areas,tunable pore structures,variable morphologies and versatile surface properties based on chemical modifications,low cost and facile preparations from diverse precursors[1,2].

关键词： versatile facile supports

Microgels for Cell Delivery in Tissue Engineering and Regenerative Medicine

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Nano-Micro Letters 2024年第10期16卷 576-617页

作者： Leyan Xuan Yingying hou Lu Liang Jialin Wu Kai Fan Liming Lian Jianhua Qiu Yingling Miao Hossein Ravanbakhsh Mingen Xu Guosheng tang Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology the NMPA and State Key Laboratory of Respiratory DiseaseSchool of Pharmaceutical Sciences and the Fifth Affiliated HospitalGuangzhou Medical UniversityGuangzhou 511436People's Republic of China School of Automation Hangzhou Dianzi UniversityHangzhou 310018People's Republic of China Department of Biomedical Engineering The University of AkronAkronOH 44325USA Wallace H.Coulter Department of Biomedical Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

Microgels prepared from natural or synthetic hydrogel materials have aroused extensive attention as multifunctional cells or drug carriers,that are promising for tissue engineering and regenerative *** can also be aggregated into microporous scaffolds,promoting cell infiltration and proliferation for tissue *** review gives an overview of recent developments in the fabrication techniques and applications of microgels.A series of conventional and novel strategies including emulsification,microfluidic,lithography,electrospray,centrifugation,gas-shearing,three-dimensional bioprinting,*** discussed in *** characteristics and applications of microgels and microgel-based scaffolds for cell culture and delivery are elaborated with an emphasis on the advantages of these carriers in cell ***,we expound on the ongoing and foreseeable applications and current limitations of microgels and their aggregate in the field of biomedical *** stimulating innovative ideas,the present review paves new avenues for expanding the application of microgels in cell delivery techniques.

关键词： Microgels Cell delivery Scaffolds 3D bioprinting Single-cell microgels

Berberine Enhances Intestinal Mucosal Barrier Function by Promoting Vitamin D Receptor Activity

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Chinese Journal of Integrative Medicine 2024年第2期30卷 143-151页

作者： HUANG Yong-quan LIU Jia-lin CHEN Geng-xin SHEN Dan-ting ZHU Wang CHEN Xin-lin LIU Feng-bin hou Qiu-ke Graduate School Guangzhou University of Chinese MedicineGuangzhou(510405)China Department of Orthopedics the Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou(510006)China Department of Preventive Medicine and Health Statistics Guangzhou University of Chinese MedicineGuangzhou(510006)China Department of Gastroenterology the First Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou(510405)China

Objective:To evaluate if berberine can act on vitamin D receptors(VDR)and thereby regulate the expression of tight junction proteins(TJPs)in irritable bowel syndrome-diarrhea-predominant(IBS-D)***:The newborn rats were induced into IBS-D rat model via neonatal maternal separation combined with acetic acid chemical *** modeling,the model was evaluated and rats were divided into the control group and berberine treatment groups(0.85,1.7 and 3.4 mg/kg,once a day for 2 weeks).The distal colon was obtained and colonic epithelial cells(CECs)were isolated and cultured after IBS-D model *** vitamin D receptor response element(VDRE)reporter gene was determined in the CECs of IBS-D rats to analyze the effect of berberine on the VDRE *** overexpression or silencing technology was used to analyze whether VDR plays a role in promoting intestinal barrier repair,and to determine which region of VDR plays a role in berberine-regulated intestinal ***:The IBS-D rat model was successfully constructed and the symptoms were improved by berberine in a dose-dependent manner(P<0.05).The activity of VDRE promoter was also effectively promoted by berberine(P<0.05).Berberine increased the expression of TJPs in IBS-D CECs(P<0.05).VDR expression was significantly increased after transfection of different domains of VDR when compared to normal control and basic plasmid groups(all P<0.05).RT-qPCR and Western blot results showed that compared with the blank group,expressions of occludin and zonula occludens-1 were significantly higher in VDR containing groups(all P<0.05).Berberine plus pCMV-Myc-VDR-N group exerted the highest expression levels of occludin and zonula occludens-1(P<0.05).Conclusion:Berberine enhances intestinal mucosal barrier function of IBS-D rats by promoting VDR activity,and the main site of action is the N-terminal region of VDR.

关键词： berberine Chinese medicine irritable bowel syndrome-diarrhea-predominant vitamin D receptors intestinal mucosal barrier tight junction proteins

Carbon Emission Factors Prediction of Power Grid by Using Graph Attention Network

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Energy Engineering 2024年第7期121卷 1945-1961页

作者： Xin Shen Jiahao Li YujunYin Jianlin tang Weibin lin Mi Zhou Measurement Center Yunnan Power Grid Co.Ltd.Kunming650000China Electric Power Research Institute China Southern Power Grid Co.Ltd.Guangzhou510530China Guangdong Provincial Key Laboratory of Intelligent Measurement and Advanced Metering of Power Grid Guangzhou510530China

Advanced carbon emission factors of a power grid can provide users with effective carbon reduction advice,which is of immense importance in mobilizing the entire society to reduce carbon *** method of calculating node carbon emission factors based on the carbon emissions flow theory requires real-time parameters of a power ***,it cannot provide carbon factor information *** address this issue,a prediction model based on the graph attention network is *** model uses a graph structure that is suitable for the topology of the power grid and designs a supervised network using the loads of the grid nodes and the corresponding carbon factor *** network extracts features and transmits information more suitable for the power system and can flexibly adjust the equivalent topology,thereby increasing the diversity of the *** input and output data are simple,without the power grid *** demonstrated its effect by testing IEEE-39 bus and IEEE-118 bus systems with average error rates of 2.46%and 2.51%.

关键词： Predict carbon factors graph attention network prediction algorithm power grid operating parameters