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An overview of potential cardioprotective benefits of xanthophylls in atherosclerosis:an evidence-based review

Food Science and Human Wellness 2024年第4期13卷 1739-1755页

作者： Yuting Su Feng Chen Jiehua Chen Mingfu Wang shenzhen key laboratory of marine microbiome engineering Institute for Advanced StudyShenzhen UniversityShenzhen 518060China Institution for Innovative Development of Food Industry Shenzhen UniversityShenzhen 518060China College of Civil and Transportation engineering Shenzhen UniversityShenzhen 518060China shenzhen key laboratory of Food Nutrition and Health Shenzhen UniversityShenzhen 518060China

Atherosclerosis,as the most prevalent form of cardiovascular disease,is characterized by oxidized lowdensity lipoprotein(ox-LDL)accumulation in the vascular wall,increased inflammation of the large arteries,dysfunction of the endothelial cells(ECs)and vascular smooth muscle cells(VSMCs),which may eventually lead to the formation of ***,one of the main groups of carotenoids,have been proposed as preventive agents or adjunct therapies to prevent and slow the progression of atherosclerosis due to their cardioprotective ***,the underlying preventive mechanism of action of xanthophylls on the pathogenesis of atherosclerosis remains unclear,and clinical evidence of the effect of xanthophylls on atherosclerosis have not yet been summarized and critically *** this regard,we conducted a comprehensive literature search in four scientific databases(Pub Med,Google Scholar,Science Direct and Web of Science)and carefully analyzed the existing evidence to provide meaningful insights on the association between xanthophylls and atherosclerosis from various *** on the evidence from in vitro and in vivo studies,we explored several potential mechanisms,including antioxidant effect,anti-inflammatory effect,regulation of lipid metabolism,and modulation of ECs and VSMCs dysfunction,and we found that a clear picture of regulatory pathways of xanthophylls on atherosclerosis prevention and treatment is still *** addition,epidemiological studies suggested the possible relationship among high dietary intake of xanthophylls,high plasma/serum xanthophylls and a reduced risk of *** evidence from interventional studies investigating the effect of xanthophylls on atherosclerosis is very sparse,whilst indirect clinical evidence was only limited to astaxanthin and ***,well-designed long-term randomized controlled trials(RCTs)are highly recommended for future studies to investigate the effective dose of different

关键词： Atherosclerosis Xanthophylls Antioxidant Anti-inflammation Lipid metabolism

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Simplified design of nonlinear damper parameters and seismic responses for long-span cable-stayed bridges with nonlinear viscous dampers

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Frontiers of Structural and Civil engineering 2024年第7期18卷 1103-1116页

作者： Huihui LI Lifeng LI Rui HU Meng YE College of Civil and Transportation engineering Shenzhen UniversityShenzhen 518060China Guangdong Provincial key laboratory of Durability for marine Civil engineering Shenzhen UniversityShenzhen 518060China College of Civil engineering Hunan UniversityChangsha 410082China

Viscous dampers are widely used as passive energy dissipation devices for long-span cable-stayed bridges for mitigation of seismic load-induced ***,complicated finite element(FE)modeling,together with repetitive and computationally intensive nonlinear time-history analyses(NTHAs)are generally required in conventional design *** streamline the preliminary design process,this paper developed a simplified longitudinal double degree of freedom model(DDFM)for single and symmetric twin-tower cable-stayed *** on the proposed simplified longitudinal DDFM,the analytical equations for the relevant mass-and stiffness-related parameters and longitudinal natural frequencies of the structure were derived by using analytical and energy *** of the relationship between the nonlinear viscous damper parameters and the equivalent damping ratio was achieved through the equivalent linearization ***,the analytical equations of longitudinal seismic responses for long-span cable-stayed bridges with nonlinear viscous dampers were *** on the developed simplified DDFM and suggested analytical equations,this paper proposed a simplified calculation framework to achieve a simplified design method of nonlinear viscous damper ***,the effectiveness and applicability of the developed simplified longitudinal DDFM and the proposed calculation framework were further validated through numerical analysis of a practical cable-stayed ***,the results indicated the following.1)For the obtained fundamental period and longitudinal stiffness,the differences between results of the simplified longitudinal DDFM and numerical analysis were only 2.05%and 1.5%,respectively.2)Relative calculation errors of the longitudinal girder-end displacement and bending moment of the bottom tower section of the bridge obtained from the simplified longitudinal DDFM were limited to less than 25%.3)The equivalent damping ratio of nonline

关键词： cable-stayed bridges viscous dampers simplified analytical model equivalent damping ratio seismic mitigation

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A novel and promising engineering application of carbon dots:Enhancing the chloride binding performance of cement

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Chinese Chemical Letters 2024年第6期35卷 409-416页

作者： Wu-Jian Long Yang Yu Chuang He Guangdong Provincial key laboratory of Durability for marine Civil engineering Key Lab of Coastal Urban Resilient InfrastructureMOECollege of Civil and Transportation EngineeringShenzhen UniversityShenzhen 518060China

Corrosion of reinforcement induced by chloride invasion is extensively considered as the dominating deterioration mechanism of reinforced concrete(RC)structures,leading to serious safety hazards and tremendous economic ***,it still lacks well dispersive and cost-efficient nanomaterials to improve the anti-chloride-corrosion ability of RC ***,specific carbon dots(CDs)with high dispersity and low cost are deliberately designed,successfully prepared by hydrothermal processing,and then firstly applied to immensely enhance chloride binding performance of cement,thereby contributing to suppressing the corrosion of ***,the tailored CDs are composed of the carbon core with highly crystalline sp^(2)C structures and oxygen-containing groups connecting on the carbon core;The typical equilibrium test confirms that with respect to that of the blank cement paste,the chloride binding capacity of cement paste involving 0.2 wt%(by weight of cement)CDs is increased by 109% after 14-day exposure to 3 mol/L Na Cl solution;according to comprehensive analyses of phase compositions,the chloride binding mechanism of CDs-modified cement is rationally attributed to the fact that the incorporation of CDs advances the formation of calcium silicate hydrate(C-S-H)gels and Friedel's salt(Fs),thus enormously enhancing the physically adsorbed and chemically bound chloride ions of cement *** work not only firstly provides a novel high-dispersity and low-cost nanomaterial toward the durability enhancement of RC structures,but also broadens the application of CDs in the field of engineering,conducing to stimulating their industrialization development.

关键词： Carbon dots Chloride binding Cement Chloride binding mechanism Friedel’s salt

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Fucoxanthin improves serum lipids， liver metabolism and gut microbiota in hyperlipidemia mice

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Food Science and Human Wellness 2024年

作者： Yonghui Zhou Jingyi Zhang Kun Xu Weihao Zhang Feng Chen Bin Liu Bingbing Guo Faculty of Environment and Life， Beijing University & Technology shenzhen key laboratory of marine microbiome engineering， Institute for Carbon Neutrality， Institute for Advanced Study， shenzhen University

Fucoxanthin， a kind of exclusively algae-derived carotenoids， could reduce lipid content and regulate gut microbiota composition in obese mice， showing potential in preventing hyperlipidemia. This study aimed to illustrate fucoxanthin efficacy in modulating lipid metabolism in serum and liver of high-fat-induced hyperlipidemia mice， as well as investigate the underlying association with gut microbiota changes. Results showed that fucoxanthin significantly reduced body weight gain and body white fat of the mice. In the serum， total triglycerides (TG)， total cholesterol (TC) contents were significantly decreased and high-density-lipoprotein cholesterol levels was significantly upregulated. Moreover， fucoxanthin remarkedly prevented lipid accumulation in the liver. Especially， metabolomics results showed that lipids and lipid-like molecules were significantly downregulated compared with the control， indicating the advance of hepatic lipid metabolism. Bile acids profile in the liver was also greatly changed by fucoxanthin. Meanwhile， fucoxanthin remodeled gut microbiota composition and promoted the relative abundance of Desulfovibrio， Blautia and Clostridia genera. Finally， correlation analysis revealed that these gut microbiota changes were closely related with hepatic metabolites/metabolism and serum lipids. Altogether， this study showed great potential of fucoxanthin in improving serum lipids profile， hepatic lipids and bile acids metabolism of hyperlipidemia mice， which was associated with gut microbiota alteration.

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Proteomic response of Phaeocystis globosa to nitrogen limitation

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Journal of Oceanology and Limnology 2024年第1期42卷 141-149页

作者： Haisu LIU Ruiwang WEI Qiangyong LEI Lei CUI Songhui LÜ key laboratory of Eutrophication and Red Tide Prevention Research Center for Harmful Algae and Marine BiologyJinan UniversityGuangzhou 510632China Southern marine Science and engineering Guangdong laboratory Zhuhai 519082China National engineering laboratory of Electronic and Information Standardization Shenzhen 518057China

Phaeocystis globosa is an important unicellular eukaryotic alga that can also form *** can cause massive harmful algal blooms and plays an important role in the global carbon or sulfur *** far,the ecophysiology of *** has been investigated by numerous ***,the proteomic response of *** to nitrogen depletion remains largely *** compared four protein preparation methods of *** for two-dimensional electrophoresis(2-DE)(Urea/Triton X-100 with trichloroacetic acid(TCA)/acetone precipitation;TCA/acetone precipitation;Radio Immuno Precipitation Assay(RIPA)with TCA/acetone precipitation;and Tris buffer).Results show that the combination of RIPA with TCA/acetone precipitation had a clear gel background and showed the best protein spot separation effect,based on which the proteomic response to nitrogen depletion was studied using *** addition,we identified six differentially expressed proteins whose relative abundance increased or decreased more than 1.5-fold(Pmarine microalgae.

关键词： Phaeocystis globosa nitrogen limitation proteomic response two-dimensional electrophoresis

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Efficient Photolytic Halogenation and Oxidation of Unactivated Alkyl sp^(3) C—H Bonds with Iodine(III)

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Chinese Journal of Chemistry 2024年第5期42卷 505-510页

作者： Hao Jia Nan Li Chunmei Tang Yajuan Wang Yonghao Xi Rongbao Liao Wei Xu Fufang Wu Xiaobao Shen Hongbin Zhai Biomass Oligosaccharides engineering Technology Research Center of Anhui Province Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational InstitutionsFuyang Normal UniversityFuyangAnhui236037 China Institute of marine Biomedicine Shenzhen PolytechnicShenzhenGuangdong518055 China State key laboratory of Chemical Oncogenomics Shenzhen Engineering Laboratory of Nano Drug Slow-ReleasePeking University Shenzhen Graduate SchoolShenzhenGuangdong518055 China

A metal-free,green,and sustainable functionalization of unactivated alkyl sp^(3) C—H bonds is reported using iodine(III)as a feasible dehydrogenation agent under visible light or KBr,and alkyl chlorides,bromides,alcohols,and ketones could be constructed by addition of different coupling *** and safe iodobenzene diacetate was used to form a radical to activate the alkyl sp^(3) C—H bond in a highly efficient manner,which can construct different alkylation products by adding corresponding coupling reagents.

关键词： Alkyl sp^(3)C—H bonds Chlorination Bromination Oxidation Iodine(III) C—H activation Radical Photocatalysis

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Tungsten oxide-anchored Ru clusters with electron-rich and anti-corrosive microenvironments for efficient and robust seawater splitting

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SusMat 2024年第1期4卷 106-115页

作者： Yiming Zhang Weiqiong Zheng Huijuan Wu Ran Zhu Yinghan Wang Mao Wang Tian Ma Chong Cheng Zhiyuan Zeng Shuang Li College of Polymer Science and engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengduChina Department of Chemical and Biomolecular engineering National University of SingaporeSingaporeSingapore Department of Materials Science and engineering and State Key Laboratory of Marine PollutionCity University of Hong KongKowloonHong KongChina shenzhen Research Institute City University of Hong KongShenzhenChina

Ruthenium(Ru)has been recognized as a prospective candidate to substitute platinum catalysts in water-splitting-based hydrogen ***,minimizing the Ru contents,optimizing the water dissociation energy of Ru sites,and enhancing the long-term stability are extremely required,but still face a great ***,we report on creating tungsten oxide-anchored Ru clusters(Ru-WO_(x))with electron-rich and anti-corrosive microenvironments for efficient and robust seawater *** from the abundant oxygen vacancy structure in tungsten oxide support,the Ru-WO_(x)exhibits strong Ru-O and Ru-W bonds at the *** study elucidates that the strong Ru-O bonds in Ru-WO_(x)may accelerate the water dissociation kinetics,and the Ru-W bonds will lead to the strong metal-support interaction and electrons transfer fromWto *** optimal Ru-WO_(x)catalysts exhibit a low overpotential of 29 and 218mVat the current density of 10 mA cm^(−2) in alkaline and seawater media,*** outstanding long-term stability discloses that the Ru-WO_(x)catalysts own efficient corrosion resistance in seawater *** believe that thiswork offers new insights into the essential roles of electron-rich and anti-corrosivemicroenvironments in Ru-based catalysts and provide a new pathway to design efficient and robust cathodes for seawater splitting.

关键词： hydrogen production microenvironment modulation noble metal catalysts seawater splitting tungsten oxide

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Design of novel RGO/2D strip-like ZIF-8/DMAOP ternary hybrid structure towards high-efficiency microwave absorption, active and passive anti-corrosion, and synergistic antibacterial performance

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Nano Research 2024年第3期17卷 913-926页

作者： Tanlin Chen Yingrui Tian Zihao Guo Yao Chen Qing Qi Fanbin Meng key laboratory of Advanced Technologies of Materials(Ministry of Education) School of Materials Science and EngineeringSouthwest Jiaotong UniversityChengdu 610031China shenzhen Institute of Southwest Jiaotong University Shenzhen 518000China

In order to meet the requirements of the marine environment for microwave absorption(MA)materials,we put forward the strategy of constructing multi-functional composite materials,which integrate microwave absorption,anti-corrosion,and antibacterial ***,graphene oxide(GO)was used as a template to induce the growth of zeolitic imidazolate framework-8(ZIF-8),simultaneously as a two-dimensional(2D)nanocontainers to load corrosion inhibitors to achieve pH-responsive and self-healing ***,quaternary ammonium salt(dimethyl octadecyl(3-trimethoxylsilyl propyl)ammonium chloride(DMAOP))and sodium ascorbate(VCNa)were introduced to achieve synergistic antibacterial activity and the reduction of *** 2D strip-like structure of ZIF-8 was due to the confined growth induced by the electrostatic attraction between ZIF-8 and GO *** as-obtained reduced GO(RGO)/ZIF-8/DMAOP5 exhibited excellent microwave absorption(MA)properties,with a minimum reflection loss(RL)value of-47.08 dB at 12.73 GHz when the thickness was 2.8 ***,the effective absorption bandwidth reached 6.84 *** soaking in 3.5%NaCl solution for 35 days,the RGO/ZIF-8/DMAOP5-0.7%coating still achieved an impedance value of 4.585×107Ω·cm^(2) and a protective efficiency of 99.994%,providing superior anti-corrosion *** addition,fantastic antibacterial activity was obtained,with the antibacterial rates of RGO/ZIF-8/DMAOP_(10) reaching 99.39%and 100%against Escherichia coli and Staphylococcus *** work could open new avenues towards the development of a new generation of multifunctional MA materials.

关键词： two-dimensional(2D)strip-like zeolitic imidazolate framework-8(ZIF-8) microwave absorption active and passive anti-corrosion antibacterial

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β-1，3-glucans-rich Euglena gracilis supplementation alleviates high-fat-high-fructose diet-induced cognitive impairment in middle-aged mice via the gut-brain axis

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Food Science and Human Wellness 2024年

作者： Haoxie Xu Yachao Wang Xiangzhu Li Xuli Wu Louise Weiwei Lu Jiayi He Mingfu Wang Bin Liu Hui Xu Jiehua Chen Kawing Cheng shenzhen key laboratory of marine microbiome engineering， Institute for Advanced Study， shenzhen University Department of Food Science and engineering， College of Chemistry and Environmental engineering， shenzhen University Institute for Innovative Development of Food Industry， shenzhen University Department of Neurosurgery， The Institute Translational Medicine， The First Affiliated Hospital of shenzhen University， shenzhen Second People's Hospital shenzhen Traditional Chinese Medicine Hospital School of Public Health， shenzhen University School of Biological Sciences， Faculty of Science， the University of Auckland

The growing aging population along with the shifting dietary paradigm to Western-type diet worldwide has been implicated in the increasing prevalence of cognitive impairment. Emerging evidence suggests that a high-fiber diet may help improve cognitive function through the gut-brain axis. Euglena gracilis， a unicellular microalga rich in β-1，3-glucans， has gained attention due to its modulatory effect on gut dysbiosis and inflammatory response. This study aimed to explore the efficacy and mechanism of β-1，3-glucans-rich Euglena gracilis powder (EG) against high-fat-high-fructose (HFHF) diet-induced cognitive disorders in mice. A middle-aged (52-week-old C57BL/6J) mouse model with the following groups was adopted: HFHF， HFHF+EG， and control. At the end of the dietary intervention (8 weeks)， cognitive behaviors， metabolic parameters， endotoxin levels， gut microbiota composition， and colon and brain pathology were examined. The results showed that EG supplementation attenuated HFHF-induced cognitive impairment， promoted synaptogenesis in the hippocampus， and improved synaptic ultrastructure. These beneficial effects were partly mediated through the upregulation of PTP1B-IRS-pAKT-pGSK3β-pTau signaling. Furthermore， it prevented gut dysbiosis as evidenced by an increase in β-diversity and enrichment of Akkermansia relative to control. EG supplementation was also able to partly reverse the HFHF-induced disruption of intestinal barrier， which was accompanied by reduced systemic and neuronal inflammation， normalized short-chain fatty acid production， and decreased serum lipopolysaccharide concentration. The findings from the present study support that β-1，3-glucans-rich EG is a promising natural agent for the prevention of HFHF diet-induced deterioration in cognitive function that merits further investigation.

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Experimental investigation of the inhibition of deep-sea mining sediment plumes by polyaluminum chloride

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International Journal of Mining Science and Technology 2024年第1期34卷 91-104页

作者： Fengpeng Zhang Xuguang Chen Jiakang Wei Yangyang Zhang Weikun Xu Hao Li College of engineering Ocean University of ChinaQingdao 266100China Shandong Province key laboratory of Ocean engineering Ocean University of ChinaQingdao 266100China China Merchants marine and Offshore Research Institute Co. Ltd.Shenzhen 518000China National Deep Sea Center Qingdao 266237China

Deep-sea sediment disturbance may occur when collecting polymetallic nodules,resulting in the creation of plumes that could have a negative impact on the ecological *** study aims to investigate the potential solution of using polyaluminum chloride(PAC)in the water *** effects of PAC are examined through a self-designed simulation system for deep-sea polymetallic nodule collection and sediment samples from a potential deep-sea mining *** experimental results showed that the optimal PAC dose was found to be 0.75 g/*** with the test conditions without the addition of PAC,the presence of PAC leads to a reduction in volume,lower characteristic turbidity,smaller diffusion velocity,and shorter settling time of the *** indicates that PAC inhibits the entire development process of the *** addition of PAC leads to the flocculation of mm-sized particles,resulting in the formation of cm-sized *** flocculation of particles decreases the rate of erosion on the seabed by around 30%.This reduction in erosion helps to decrease the formation of ***,when the size of suspended particles increases,it reduces the scale at which they ***,the settling velocity of flocs(around 10^(-2) m/s)is much higher that of compared to sediment particles(around 10^(-5) m/s),which effectively reduces the amount of time the plume remains in suspension.

关键词： Deep-sea mining Deep-sea polymetallic nodules Sediment plume Polyaluminum chloride Jet impact Particle flocculation

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