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Age and mean platelet volume-based nomogram for predicting the therapeutic efficacy of metoprolol in Chinese pediatric patients with vasovagal syncope

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World Journal of Pediatrics 2024年第9期20卷 957-965页

作者： Xiao-Juan Du Ya-Qian huang Xue-Ying Li Ying Liao Hong-fang Jin Jun-Bao Du Department of Pediatrics Peking University First HospitalNo.1 Xi’anmen StreetWest DistrictBeijing100034China State Key Laboratory of Vascular Homeostasis and Remodeling Peking UniversityNo.38Xueyuan RoadHaidian DistrictBeijing100191China Department of Statistics Peking University First HospitalBeijing100034China

Background Vasovagal syncope(VVS)is the most common type of orthostatic intolerance in *** investigated whether platelet-related factors related to treatment efficacy in children suffering from VVS treated with *** Metoprolol-treated VVS patients were *** median duration of therapy was three *** were followed and divided into two groups,treament-effective group and treatment-ineffective *** and least absolute shrinkage selection operator regressions were used to examine treatment outcome ***-operating characteristic(ROC)curves,precision-recall(PR)curves,calibration plots,and decision curve analyses were used to evaluate the nomogram *** Among the 72 patients who complete the follow-up,treatment-effective group and treatment-ineffective group included 42(58.3%)and 30(41.7%)cases,*** patients in the treatment-effective group exhibited higher mean platelet volume(MPV)[(11.0±1.0)fl vs.(9.8±1.0)fl,P<0.01]and platelet distribution width[12.7%(12.3%,14.3%)vs.11.3%(10.2%,12.2%),P<0.01]than those in the treatment-ineffective *** sex ratio was significantly different(P=0.046).A fit model comprising age[odds ratio(OR)=0.766,95%confidence interval(CI)=0.594-0.987]and MPV(OR=5.613,95%CI=2.297-13.711)might predict therapeutic *** area under the curve of the ROC and PR curves was computed to be 0.85 and 0.9,*** P value of the Hosmer-Lemeshow test was *** decision curve analysis confirmed that managing children with VVS based on the predictive model led to a net advantage ranging from 0.01 to *** nomogram is convenient for clinical *** A novel nomogram based on age and MPV can predict the therapeutic benefits of metoprolol in children with VVS.

关键词： Metoprolol Nomogram Retrospective study Therapeutic effect Vasovagal syncope

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Lipid concentration and composition in xylem sap of woody angiosperms from a tropical savanna and a seasonal rainforest

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Plant Diversity 2024年第1期46卷 126-133页

作者： Ling-Bo huang Xinyi Guan Amy Ny Aina Aritsara Jun-Jie Zhu Steven Jansen Kun-fang Cao State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources Guangxi Key Laboratory of Forest Ecology and ConservationGuangxi UniversityDaxuedong Road 100NanningGuangxi 530004China Institute of Botany Ulm UniversityAlbert-Einstein-Allee 11Ulm89081Germany

Lipids may play an important role in preventing gas embolisms by coating nanobubbles in xylem *** studies on xylem sap lipids have been reported for temperate plants,and it remain unclear whether sap lipids have adaptational significance in tropical *** this study,we quantify the lipid composition of xylem sap for angiosperm species from a tropical savanna(seven species)and a seasonal rainforest(five species)using mass *** found that all twelve species studied contained lipids in their xylem sap,including galactolipids,phospholipids and triacylglycerol,with a total lipid concentration ranging from 0.09 to 0.26 nmol/*** was no difference in lipid concentration or composition between plants from the two sites,and the lipid concentration was negatively related to species’open vessel ***,savanna species showed little variation in lipid composition between the dry and the rainy *** results support the hypothesis that xylem sap lipids are derived from the cytoplasm of individual conduit cells,remain trapped inside individual conduits,and undergo few changes in composition over consecutive seasons.A xylem sap lipidomic data set,which includes 12 tropical tree species from this study and 11 temperate tree species from literature,revealed no phylogenetic signals in lipid composition for these *** study fills a knowledge gap in the lipid content of xylem sap in tropical trees and provides additional support for their common distribution in xylem sap of woody *** appears that xylem sap lipids have no adaptive significance.

关键词： Xylem sap Lipids Tropical savanna Tropical rainforest Vessels

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Probing the Galactic Halo with RR Lyrae *** Radial Velocity Curve Templates of RRc Stars

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Research in Astronomy and Astrophysics 2024年第7期24卷 118-134页

作者： Yue huang Min fang Gaochao Liu Xianzhong Zheng Sarah Ann Bird Yang huang Jianrong Shi Jiangtao Wang Huawei Zhang Haijun Tian Haotong Zhang College of Science China Three Gorges UniversityYichang 443002China Center for Astronomy and Space Sciences China Three Gorges UniversityYichang 443002China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China School of Astronomy and Space Science University of Chinese Academy of SciencesBeijing 100049China CAS Key Laboratory of Optical Astronomy National Astronomical ObservatoriesBeijing 100101China Department of Astronomy School of PhysicsPeking UniversityBeijing 100871China Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China School of Sciences Hangzhou Dianzi UniversityHangzhou 310018China

We present radial velocity(RV)curve templates of RR Lyrae first-overtone(RRc)stars constructed with the Mg I b triplet and Hαlines using time-domain Medium-Resolution Survey spectra of seven RRc stars from Large Sky Area Multi-Object Fiber Spectroscopic Telescope(LAMOST)Data Release ***,we derive the relation between the stellar RV curve amplitudes and g-band light curve amplitudes from Zwicky Transient Facility(ZTF)public *** those RRc stars without ZTF g-band light curves,we provide the conversions from the light curve amplitudes in ZTF r-and i-bands,Gaia G-band,and V-band from the All-Sky Automated Survey for Supernovae to those in ZTF *** validate our RV curve templates using the RRc star SV Scl and find the uncertainties of systemic RV are less than 2.11 km s~(-1)and 6.08 km s~(-1)based on the Mg I b triplet and Hαlines,*** calculate the systemic RVs of 30 RRc stars using the RV curve templates constructed with the Mg I b triplet and Hαlines and find the systemic RVs are comparable with each *** RV curve template will be particularly useful for obtaining the systemic RV of RRc using the LAMOST spectroscopy.

关键词： stars variables RR Lyrae-Stars-techniques radial velocities

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Insight into the synergistic effect of defect and strong interface coupling on ZnIn_(2)S_(4)/CoIn_(2)S_(4)heterostructure for boosting photocatalytic H_(2) evolution

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Journal of Energy Chemistry 2024年第5期92卷 151-161页

作者： Xuehua Wang Tianyu Shi Xianghu Wang Aili Song Guicun Li Lei Wang Jianfeng huang Alan meng Zhenjiang Li College of Materials Science and Engineering Qingdao University of Science and TechnologyQingdao 266042ShandongChina Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science MOECollege of Chemistry and Molecular EngineeringQingdao University of Science and TechnologyQingdao 266042ShandongChina Qingdao huanghai University Qingdao 266000ShandongChina School of Material Science and Engineering International S&T Cooperation Foundation of Shaanxi ProvinceXi’an Key Laboratory of Green Manufacture of Ceramic MaterialsShaanxi University of Science and TechnologyXi’an 710021ShaanxiChina

Steering the directional carrier migration across the interface is a central mission for efficient photocatalytic *** this work,an atomic-shared heterointerface is constructed between the defect-rich ZnIn_(2)S_(4)(HVs-ZIS)and CoIn_(2)S_(4)(CIS)via a defect-guided heteroepitaxial growth *** strong interface coupling induces adequate carriers exchanging passageway between HVs-ZIS and CIS,enhancing the internal electric field(IEF)in the ZnIn_(2)S_(4)/CoIn_(2)S_(4)(HVs-ZIS/CIS)*** defect structure in HVs-ZIS induces an additional defect level,improving the separation efficiency of ***,promoted by the IEF and intimate heterointerface,photogenerated electrons trapped by the defect level can migrate to the valence band of CIS,contributing to massive photogenerated electrons with intense reducibility in HVs-ZIS/***,the HVs-ZIS/CIS heterostructure performs a boosted H_(2)evolution activity of 33.65 mmol g^(-1)h^(-1).This work highlights the synergistic effects of defect and strong interface coupling in regulating carrier transfer and paves a brave avenue for constructing efficient heterostructure photocatalysts.

关键词： Defect-guided heteroepitaxial growth Heterointerface coupling Photocatalytic H_(2)evolution Mechanism HVs-ZIS/CIS

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Insight into the Permeability and Microstructure Evolution Mechanism of the Sliding Zone Soil: A Case Study from the huangtupo Landslide, Three Gorges Reservoir, China

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Journal of Earth Science 2024年第3期35卷 941-954页

作者： Qianyun Wang Huiming Tang Pengju An Kun fang Junrong Zhang Minghao Miao Qingwen Tan Lei huang Shengming Hu Badong National Observation and Research Station of Geohazards China University of GeosciencesWuhan 430074China Faculty of Engineering China University of GeosciencesWuhan 430074China Institute of Rock Mechanics Ningbo UniversityNingbo 315211China National and Provincial Joint Engineering Laboratory for the Hydraulic Engineering Safety and Efficient Utilization of Water Resources of Poyang Lake Basin Nanchang Institute of TechnologyNanchang 330099China

A large number of laboratory investigations related to the permeability have been conducted on the sliding *** little attention has been paid to the particular sliding zones of the slideprone Badong ***,we experimentally investigate the permeability nature and the mechanism of seepage in the viscous sliding zone of the huangtupo *** seepage tests have been performed first with consideration of six dry densities and thirteen hydraulic gradients,in conjunction with the mercury intrusion porosimetry test and scanning electron microscopy test for the microstructure analysis after *** results show that seepage in the sliding zone soil does not follow Darcy’s Law,since there is a threshold hydraulic gradient(i0)below which no flow is observed and a critical hydraulic gradient(icr)over which the hydraulic conductivity(K)tends to be *** percentage of bound water could be responsible for the occurrence of i0 and ***,pore size distributions(PSD)less than 0.6µm and between 10 and 90µm exhibit positive and negative correlations with the i0,respectively,indicating that the i0 is related to the *** mechanism accounting for this result is that pore water pressure forces fine clay particles into the surrounding large pores and converts arranged particles to discretely distributed ones,thereby weakening the connectivity of *** seepages in the sliding zones behave differently from that in the sliding mass and sliding bed in response to the permeability.

关键词： reservoir landslides sliding zone soil permeability microstructure seepage.

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(+)/(-)-Gerbeloid A,a pair of unprecedented coumarin-based polycyclic meroterpenoid enantiomers from Gerbera piloselloides:Structural elucidation,semi-synthesis,and lipid-lowering activity

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Acta Pharmaceutica Sinica B 2024年第6期14卷 2657-2668页

作者： Chenxu Zhao Jingrong Li Yue Hu Lingyu Li meng Yu Yunfeng huang Tao Zhang Hai Shang Zhongmei Zou State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Medicinal Plant DevelopmentChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100193China Institute of Chinese Medicine Resources Guangxi Institute of Chinese Medicine&Pharmaceutical ScienceNanning 530000China

A pair of coumarin-based polycyclic meroterpenoid enantiomers(+)/(-)-gerbeloid A[(+)-1a and(-)-1b]were isolated from the medicinal plant Gerbera piloselloides,which have a unique caged oxatricyclo[4.***.2.0^(3,8)]decene *** planar and three-dimensional structures were exhaustively characterized by comprehensive spectroscopic data and X-ray diffraction *** by the hypothetical biosynthetic pathway,the biomimetic synthesis of racemic 1 was achieved using 4-hydroxy-5-methylcoumarin and citral as the starting material via oxa-6πelectrocyclization and intramolecular[2+2]***,the results of the biological activity assay demonstrated that both(+)-1a and(-)-1b exhibited potent lipid-lowering effects in 3T3-L1 adipocytes and the high-fat diet zebrafish ***,the lipid-lowering activity of(+)-1a is better than that of(-)-1b at the same concentration,and molecular mechanism study has shown that(+)-1a and(-)-1b impairs adipocyte differentiation and stimulate lipolysis by regulating C/EBPα/PPARγsignaling and Perilipin signaling in vitro and in *** findings provide a promising drug model molecule for the treatment of obesity.

关键词： Gerbera piloselloides Natural products Coumarin meroterpenoid Structural elucidation Biomimetic synthesis Lipid-lowering activity 3T3-L1 adipocytes High-fat diet zebrafish model

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Enhanced activation of peroxymonosulfate by Fe/N co-doped ordered mesoporous carbon with dual active sites for efficient removal of m-cresol

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Chinese Journal of Chemical Engineering 2024年第1期65卷 130-144页

作者： Donghui Li Wenzhe Wu Xue Ren Xixi Zhao Hongbing Song meng Xiao Quanhong Zhu Hengjun Gai Tingting huang College of Chemical Engineering Qingdao University of Science and TechnologyQingdao 266042China School of Chemical&Environmental Engineering China University of Mining&Technology-BeijingBeijing 100083China

The novel Fe-N co-doped ordered mesoporous carbon with high catalytic activity in m-cresol removal was prepared by urea-assisted impregnation and simple pyrolysis *** the preparation of the Fe-NC catalyst,the complexation of N elements in urea could anchor Fe,and the formation of C3N4during urea pyrolysis could also prevent migration and aggregation of Fe species,which jointly improve the dispersion and stability of *** FeN4sites and highly dispersed Fe nanoparticles synergistically trigger the dual-site peroxymonosulfate (PMS) activation for highly efficient m-cresol degradation,while the ordered mesoporous structure of the catalyst could improve the mass transfer rate of the catalytic process,which together promote catalytic degradation of m-cresol by PMS *** oxygen species (ROS) analytic experiments demonstrate that the system degrades m-cresol by free radical pathway mainly based on SO_(4)^(-)·and·OH,and partially based on·OH as the active components,and a possible PMS activation mechanism by 5Fe-50 for m-cresol degradation was *** study can provide theoretical guidance for the preparation of efficient and stable catalysts for the degradation of organic pollutants by activated PMS.

关键词： Degradation Peroxymonosulfate Fe(II)/Fe(III)/FeN4 Ordered mesopores carbon Catalyst Radical

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3D printing in space:from mechanical structures to living tissues

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International Journal of Extreme Manufacturing 2024年第2期6卷 378-387页

作者： Mao Mao Zijie meng Xinxin huang Hui Zhu Lei Wang Xiaoyong Tian Jiankang He Dichen Li Bingheng Lu State Key Laboratory for Manufacturing Systems Engineering Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China National Medical Products Administration(NMPA)Key Laboratory for Research and Evaluation of Additive Manufacturing Medical Devices Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China National Innovation Platform(Center)for Industry-Education Integration of Medical Technology Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China Frontier Institute of Science and Technology Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China National Innovation Institute of Additive Manufacturing Xi’an 710000People’s Republic of China

3D printing stands at the forefront of transforming space exploration,offering unprecedented on-demand and rapid manufacturing *** adeptly addresses challenges such as mass reduction,intricate component fabrication,and resource *** the obstacles posed by microgravity and extreme environments,continual advancements underscore the pivotal role of 3D printing in aerospace *** its primary function of producing space structures,3D printing contributes significantly to progress in electronics,biomedicine,and resource *** perspective delves into the technological advantages,environmental challenges,development status,and opportunities of 3D printing in *** its crucial impact,we anticipate that 3D printing will unlock innovative solutions,reshape manufacturing practices,and foster self-sufficiency in future space endeavors.

关键词： 3D printing in space space manufacturing microgravity

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Total Synthesis and Stereochemical Assignment of Talaroconvolutin A and Talarofuranone: Gram-scale Synthesis of Ferroptosis Inducer Talaroconvolutin A

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Chinese Journal of Chemistry 2024年第13期42卷 1509-1514页

作者： Ming Yao Wei Yang Jing Li Chengyun huang Jin fang Sulu Qin Shuzhi Liu Xiaolong Yang School of Pharmaceutical Sciences South-Central Minzu UniversityWuhanHubei 430074China

The first total synthesis of talaroconvolutin A(1.1 g obtained)and talarofuranone has been achieved using accessible materials(12 steps,7.5%and 8.2%yields,respectively).Convergent routes involved intramolecular Diels-Alder reactions in two approaches for creating the decalin ***,an unprecedented DMP-mediated domino reaction resulted in the deoxy-tetramic acid *** syntheses not only establish the absolute configuration of talaroconvolutin A but also enable further collaborative studies of this typeofferroptosisinducers.

关键词： Natural products Aldehydes Total synthesis Domino reactions Biological activity Antitumor agents Ferroptosis Diels-Alder reaction Talaroconvolutin A

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The de Haas-van Alphen quantum oscillations in the kagome metal RbTi_(3)Bi_(5)

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Chinese Physics B 2024年第10期33卷 356-361页

作者： Zixian Dong Lei Shi Bin Wang mengwu Huo Xing huang Chaoxin huang Peiyue Ma Yunwei Zhang Bing Shen meng Wang Center for Neutron Science and Technology Guangdong Provincial Key Laboratory of Magnetoelectric Physics and DevicesSchool of PhysicsSun Yat-Sen UniversityGuangzhou 510275China

The kagome system has attracted great interest in condensed matter physics due to its unique structure that canhost various exotic states such as superconductivity(SC),charge density waves(CDWs)and nontrivial topological *** topological semimetal RbTi_(3)Bi_(5)consisting of a Ti kagome layer shares a similar crystal structure to the topologicalcorrelated materials AV_(3)Sb_(5)(A=K,Rb,Cs)but without the absence of CDW and *** de Haas-van Alphenoscillation measurements are performed on single crystals of RbTi_(3)Bi_(5)to pursue nontrivial topological physics and *** this with theoretical calculations,the detailed Fermi surface topology and band structure are investigated.A two-dimensional Fermi pocket b is revealed with a light effective mass,consistent with the semimetal *** fan diagram of RbTi_(3)Bi_(5)reveals a zero Berry phase for the b oscillation in contrast to that of CsTi_(3)Bi_(5).Theseresults suggest that kagome RbTi_(3)Bi_(5)is a good candidate for exploring nontrivial topological exotic states and topologicalcorrelated physics.

关键词： oscillation Fermi surface band structure

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