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| 1 | Screening for gastric cancer in China:Advances,challenges and visions显示文摘Gastric cancer(GC)is one of the major cancers in China and all over the world.Most GCs are diagnosed at an advanced stage with unfavorable prognosis.Along with some other countries,China has developed the government-funded national screening programs for GC and other major cancers.GC screening has been shown to effectively decrease the incidence of and mortality from GC in countries adopting nationwide screening programs(Japan and Korea)and in studies based on selected Chinese populations.The screening of GC relies mostly on gastroendoscopy,the accuracy,reliability and safety of which have been indicated by previous studies.However,considering its invasive screening approach,requirements on skilled endoscopists and pathologists,and a high cost,developing noninvasive methods to amend endoscopic screening would be highly needed.Numerous studies have examined biomarkers for GC screening and the combination of biomarkers involving pepsinogen,gastrin,and Helicobacter pylori antibodies has been proposed for risk stratification,seeking to narrow down the high-risk populations for further endoscopy.Despite all the achievements of endoscopic screening,evidence on appropriate screening age,intervals for repeated screening,novel biomarkers promoting precision prevention,and health economics need to be accumulated to inform policymakers on endoscopic screening in China.With the guide of Health China 2030 Planning Outline,we have golden opportunities to promote prevention and control of GC.In this review,we summarize the characteristics of screening programs in China and other East Asian countries and introduce the past and current approaches and strategies for GC screening,aiming for featuring the latest advances and key challenges,and illustrating future visions of GC screening. | Xiaohan Fan Xiangxiang Qin Yang Zhang Zhexuan Li Tong Zhou Jingying Zhang Weicheng You Wenqing Li Kaifeng Pan | 2021 | Chinese Journal of Cancer Research2021,33,2: | 21 |
| 2 | Interactions of OsMADS1 with Floral Homeotic Genes in Rice Flower Development显示文摘在繁殖开发期间,米饭植物开发决定最后的谷物收益的唯一的花器官。OsMADS1,象 SEPALLATA 一样疯盒子的基因之一,被解开了玩关键角色 inrice 花的机关身份说明和花的分裂组织确定性。然而,在调整花开发与另外的花的 homeotic 基因位于 OsMADS1 的相互作用下面的分子的机制 remainslargely 逃犯。在这个工作,我们在他们的蛋白质之中与物理相互作用一起与 B- , C- ,和 D 班基因学习了 OsMADS1 的基因相互作用。我们证明在 OsMADS1 和 OsMADS3 之间的物理、基因的相互作用为花的分裂组织活动维护和机关身份说明是必要的;当 OsMADS1 身体上并且遗传上在调整花的分裂组织确定性和 suppressingspikelet 分裂组织回复与 OsMADS58 交往时。我们提供了重要基因证据在花开发期间支持二米饭 C 班基因(OsMADS3 和 OsMADS58 ) 的 neofunctionalization。基因表示介绍和量的 RT-PCR 分析进一步表明 OsMADS1 影响涉及发信号的花的身份和荷尔蒙的许多基因的表达式,并且染色质 immunoprecipitation (芯片)-PCR 试金进一步证明 OsMADS17 是 OsMADS1 的直接目标基因。一起拿,这些结果表明 OsMADS1 在指定米饭有多样化的规章的功能花的机关和分裂组织身份,可能通过它和不同花的 homeotic 管理者的基因、物理的相互作用。 | Yun Hu Wanqi Liang Changsong Yin Xuelian Yang Baozhe Ping Anxue Li Ru Jia Mingjiao Chen Zhijing Luo Qiang Cai Xiangxiang Zhao Dabing Zhang Zheng Yuan | 2015 | Molecular Plant2015,8,9: | 10 |
| 3 | Effect of the layer orientation on mechanics and energy evolution characteristics of shales under uniaxial loading显示文摘The uniaxial compression tests were conducted on the cylindrical shale specimens with bedding plane inclined at 0° and 90° to the axial loading direction, respectively. Effect of the bedding orientation on the mechanical property and energy evolution characteristics of shales was revealed. The failure mechanisms of the specimens with layers in 0° orientation showed splitting failure along weak bedding, while the specimens with layers in 90° orientation were failed by shearing sliding. The values of compressive strength, elastic modulus and shear modulus of samples at 0° were higher than those of samples at 90°and there was little difference of Poisson's ratio between samples at 0° and 90°. The analysis of the stress–strain energy and acoustic emission(AE) energy indicated that the growth rate of absorbed energy density and elastic energy density at 0° was significantly faster than that at 90°, hence their final values at 0°were relatively larger than the latter. Moreover, higher energy release was observed for specimens at 0°.The energy release and rapid growth of energy dissipation also appeared more early at 0°. The stress ratio63% was a critical point of energy distribution at which differences started to arise between samples at 0°and 90°. These results indicated that the failure of shale at 0° was more violent and devastative than the failure of shale at 90°. | Hou Peng Gao Feng Yang Yugui Zhang Xiangxiang Zhang Zhizhen | 2016 | International Journal of Mining Science and Technology2016,26,5: | 9 |
| 4 | Photo-production of dissolved inorganic carbon from dissolved organic matter in contrasting coastal waters in the southwestern Taiwan Strait, China显示文摘Photo-production of dissolved inorganic carbon (DIC) from chromophoric dissolved organic matter (CDOM) is an important transformation process in marine carbon cycle, but little is known about this process in Chinese coastal systems. This study investigated an estuarine water sample and a coastal seawater sample from the subtropical waters in southeast of China. Water samples were exposed to natural sunlight and the absorption and fluorescence of CDOM as well as the DIC concentration were measured in the summer of 2009. The estuarine water had higher CDOM level, molecular weight and proportion of humic-like fluorescent components than the seawater that exhibited abundant tryptophan-like fluorescent component. After a 3-day irradiation, the CDOM level decreased by 45% in the estuarine water and 20% in the seawater, accompanied with a decrease in the molecular weight and aromaticity of DOM which was inferred from an increase in the absorption spectral slope parameter. The photo-degradation rates of all the five fluorescent components were also notable, in particular two humic-like components (C4 and C5) were removed by 78% and 69% in the estuarine water and by 69% and 56% in the seawater. The estuarine water had a higher photo-production rate of DIC than the seawater (4.4 vs. 2.5 μmol/(L·day)), in part due to its higher CDOM abundance. The differences in CDOM compositions between the two types of waters might be responsible for the higher susceptibility of the estuarine water to photo-degradation and hence could also affect the photo-production process of DIC. | Weidong Guo Liyang Yang Xiangxiang Yu Weidong Zhai Huasheng Hong | 2012 | Journal of Environmental Sciences2012,24,7: | 7 |
| 5 | Effect of vernalization on tuberization and flowering in the Tibetan turnip is associated with changes in the expression of FLC homologues显示文摘The turnip(Brassica rapa var. rapa) is a biennial crop that is planted in late summer/early fall and forms fleshy tubers for food in temperate regions. The harvested tubers then overwinter and are planted again the next spring for flowering and seeds. FLOWERING LOCUS C(FLC) is a MADS-box transcription factor that acts as a major repressor of floral transition by suppressing the flowering promoters FT and SOC1. Here we show that vernalization effectively represses tuber formation and promotes flowering in Tibetan turnip. We functionally characterized four FLC homologues(BrrFLC1,FLC2, FLC3, and FLC5), and found that BrrFLC2 and BrrFLC1 play a major role in repressing flowering in turnip and in transgenic Arabidopsis. In contrast, tuber formation was correlated with BrrFLC1 expression in the hypocotyl and was repressed under cold treatment following the quantitative downregulation of BrrFLC1. Grafting experiments of non-vernalized and vernalized turnips revealed that vernalization independently suppressed tuberization in the tuber or hypocotyl of the rootstock or scion, which occurred in parallel with the reduction in BrrFLC1 activity. Together, our results demonstrate that the Tibetan turnip is highly responsive to cold exposure, which is associated with the expression levels of BrrFLC genes. | Yan Zheng Landi Luo Yuanyuan Liu Yunqiang Yang Chuntao Wang Xiangxiang Kong Yongping Yang | 2018 | Plant Diversity2018,40,2: | 7 |
| 6 | Influence of genotypes and environmental factors on leaf triterpenoid content and growth of Cyclocarya paliurus显示文摘Cyclocarya paliurus, an economically valuable tree species, has traditionally been used as a nutraceutical food or medicine in China. However, limited information is available on its genotype selection and cultivation under a wide range of environmental conditions for growth and targeted health-promoting substances. We studied the effects of genotype and environment, and their interaction on leaf triterpenoid content and tree growth for 12 genotypes of C. paliurus grown at four sites. We quantified the correlation between leaf triterpenoid accumulation and tree growth. The contents of cyclocaric acid B, cyclocarioside I, and arjunolic acid ranged from 0.06 to 3.89, 0 to 3.71, and 0.65 to 8.86 mg g^-1, respectively. Three individual triterpenoids were primarily influenced by genotype (variation ranged from 53.7 to 68.0%), while environment accounted for most of the variation in total triterpenoid content and tree growth (71.3–89.5%). Most tested environmental parameters were significantly correlated to total triterpenoid content, but not to the contents of the individual triterpenoids measured. Growth in tree height and diameter at breast height were significantly negatively correlated with total triterpenoid content but were non-significantly correlated with individual triterpenoid contents. We conclude that genotypic selection, manipulation of environmental conditions, and implementation of appropriate silvicultural operations would be important strategies for increasing the accumulation of health-promoting phytochemicals. | Bo Deng Shengzuo Fang Xulan Shang Xiangxiang Fu Wanxia Yang | 2019 | Journal of Forestry Research2019,30,3: | 7 |
| 7 | Dark matter direct search sensitivity of the PandaX-4T experiment显示文摘The Panda X-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Underground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1-10 keV electron equivalent energy, the total electron recoil background is found to be 4.9 × 10^(-5) kg^(-1) d^(-1) keV^(-1). The nuclear recoil background in the same region is 2.8 × 10^(-7) kg^(-1) d^(-1) keV^(-1). With an exposure of 5.6 ton-years, the sensitivity of Panda X-4 T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10^(-48) cm^2 at a dark matter mass of 40 Ge V/c^2. | HongGuang Zhang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui BinBin Dong DeQing Fang ChangBo Fu Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo ZhiFan Guo Ke Han ChangDa He ShengMing He Di Huang XingTao Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju ShaoLi Li Yao Li Heng Lin HuaXuan Liu JiangLai Liu YuGang Ma YaJun Mao KaiXiang Ni JinHua Ning XiangXiang Ren Fang Shi AnDi Tan AnQing Wang Cheng Wang HongWei Wang Meng Wang QiuHong Wang SiGuang Wang XiuLi Wang XuMing Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu JuMin Yuan JianFeng Yue Dan Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou | 2019 | Science China(Physics,Mechanics & Astronomy)2019,62,3: | 6 |
| 8 | Human apolipoprotein A-I exerts a prophylactic effect on high-fat diet-induced atherosclerosis via inflammation inhibition in a rabbit model显示文摘Apolipoprotein A-I (apoA -- 我) 是高密度的脂蛋白的主要功能的蛋白质部分。人的 apoA 的预防效果和机制 -- 我在动脉粥样硬化上(作为) 被调查在一高脂肪象兔子模型导致食谱。兔子与 apoA 被注射 -- 我每周一次当喂时为 20 个星期的高脂肪的饮食。我们的结果显示出那 apoA -- 我能提起高密度的脂蛋白胆固醇的浆液水平并且类脂化合物总数胆固醇, triglyceride,和低密度的脂蛋白胆固醇减少那些在作为兔子。减少的大动脉的匾区域和大动脉的损害度被染色的油红 O 也观察并且他在 apoA-I-treated 染色高脂肪象兔子导致食谱。进一步的学习阐明了那 apoA -- 我能包括细胞间的粘附分子的一些煽动性的调停人的表示打的下面调整 1,脉管的粘附 molecule-1 (VCAM-1 ) ,单核白血球 chemoattractant protein-1,肿瘤坏死因素 -- , interleukin-6 (IL-6 ) ,和在浆液和主动脉的 C 反应的蛋白质作为兔子。另外,即时量的 RT-PCR 分析证明 apoA --我注入减少了二个 支持inflammatory 分子的 mRNA 层次,即原子因素 kappa B ( NF-B )和 cyclooxygenase-2 ( COX-2 ),在主动脉作为兔子,它在 endothelial VCAM-1 和 IL-6 mRNA 抄写与伴随物减小被联系。一起,我们的结果支持 atheroprotective 和 apoA 的预防角色 -- 我可以与它的反煽动性的效果在 vivo,和这项活动被相关。 | Jiyang Li Weina Wang Lei Han Meiqing Feng Hui Lu Li Yang Xiangxiang Hu Si Shi Shanshan Jiang Qian Wang Li Ye | 2017 | Acta Biochimica et Biophysica Sinica2017,49,2: | 3 |
| 9 | Comparisons of plant calcium fraction between two different vegetation zones in semi-arid region显示文摘To explore the characteristics of plant calcium(Ca) fraction, we analyzed 91 plant species in the Ningxia Habahu National Nature Reserve in Yanchi County of Ningxia and 84 plant species in Zhenglan Banner of Inner Mongolia. Results show that, for the two regions, there is no significant difference between Ca fraction for the same growth type, and between water soluble Ca content or between hydrochloric acid soluble Ca content for plants of the same ecosystem and between hydrochloric acid soluble Ca content for plants of the same family. In similar vegetation zones, there is a significant difference among hydrochloric acid soluble Ca content for different growth types in Yanchi County and Zhenglan Banner,which was the highest for annual herbs and the lowest for perennial herbs. There is a significant difference between acetic acid soluble Ca content and between hydrochloric acid soluble Ca content for sandy land and grassland ecosystems in Yanchi County. There is a significant difference among the same Ca fraction of different families in the same region. Thus, the characteristics of plant Ca fraction are results of long-term adaptation to the environment. | MengQi Li XingDong He XiangXiang Yang YueDan Zhao YuBao Gao | 2018 | Research in Cold and Arid Regions2018,10,4: | 2 |
| 10 | Copper nanowire with enriched high‐index facets for highly selective CO_(2) reduction显示文摘Electroreduction of carbon dioxide into fuels and feedstocks with renewable energy is an attractive route to mitigate carbon emission and solve energy crisis.However,how to improve the selectivity of high‐value multicarbon products is still challenging.Here,we demonstrate that the high‐index crystalline surface of copper could be designed and obtained through a simple square‐wave potential treatment on copper nanowires,which is beneficial to improve the selectivity of multi‐carbon products,especially the reaction route towards ethylene.The Faradaic efficiency of C_(2+)products can reach nearly 60%,and hydrogen can be suppressed to below 20%.Density functional theory(DFT)calculations reveal that(311)high‐index facet can activate CO_(2) effectively and promote adsorption of the*COCOH intermediate on copper for ethylene formation,therefore improves the selectivity of ethylene and inhibits the competing hydrogen evolution reaction.This method can be extended to the design of other catalytic systems and has inspirations for other electrochemical catalytic reactions. | Lu Han Benqiang Tian Xiangxiang Gao Yang Zhong Shengnan Wang Shuchang Song Zhili Wang Ying Zhang Yun Kuang Xiaoming Sun | 2022 | SmartMat2022,3,1: | 2 |
| 11 | Formative pluripotent stem cells show features of epiblast cells poised for gastrulation显示文摘The pluripotency of mammalian early and late epiblast could be recapitulated by naïve embryonic stem cells(ESCs)and primed epiblast stem cells(EpiSCs),respectively.However,these two states of pluripotency may not be sufficient to reflect the full complexity and developmental potency of the epiblast during mammalian early development.Here we report the establishment of self-renewing formative pluripotent stem cells(fPSCs)which manifest features of epiblast cells poised for gastrulation.fPSCs can be established from different mouse ESCs,pre-/early-gastrula epiblasts and induced PSCs.Similar to pre-/early-gastrula epiblasts,fPSCs show the transcriptomic features of formative pluripotency,which are distinct from naïve ESCs and primed EpiSCs.fPSCs show the unique epigenetic states of E6.5 epiblast,including the super-bivalency of a large set of developmental genes.Just like epiblast cells immediately before gastrulation,fPSCs can efficiently differentiate into three germ layers and primordial germ cells(PGCs)in vitro.Thus,fPSCs highlight the feasibility of using PSCs to explore the development of mammalian epiblast. | Xiaoxiao Wang Yunlong Xiang Yang Yu Ran Wang Yu Zhang Qianhua Xu Hao Sun Zhen-Ao Zhao Xiangxiang Jiang Xiaoqing Wang Xukun Lu Dandan Qin Yujun Quan Jiaqi Zhang Ng Shyh-Chang Hongmei Wang Naihe Jing Wei Xie Lei Li | 2021 | Cell Research2021,31,5: | 2 |
| 12 | Integrating PCR-free amplification and synergistic sensing for ultrasensitive and rapid CRISPR/Cas12a-based SARS-CoV-2 antigen detection显示文摘Antigen detection provides particularly valuable information for medical diagnoses;however,the current detection methods are less sensitive and accurate than nucleic acid analysis.The combination of CRISPR/Cas12a and aptamers provides a new detection paradigm,but sensitive sensing and stable amplification in antigen detection remain challenging.Here,we present a PCR-free multiple trigger dsDNA tandem-based signal amplification strategy and a de novo designed dual aptamer synergistic sensing strategy.Integration of these two strategies endowed the CRISPR/Cas12a and aptamer-based method with ultra-sensitive,fast,and stable antigen detection.In a demonstration of this method,the limit of detection was at the single virus level(0.17 fM,approximately two copies/μL)in SARS-CoV-2 antigen nucleocapsid protein analysis of saliva or serum samples.The entire procedure required only 20 min.Given our system’s simplicity and modular setup,we believe that it could be adapted reasonably easily for general applications in CRISPR/Cas12a-aptamer-based detection. | Xiangxiang Zhao Zhengduo Wang Bowen Yang Zilong Li Yaojun Tong Yuhai Bi Zhenghong Li Xuekui Xia Xiangyin Chen Lixin Zhang Weishan Wang Gao-Yi Tan | 2021 | Synthetic and Systems Biotechnology2021,6,4: | 1 |
| 13 | Whole-genome Duplication Reshaped Adaptive Evolution in A Relict Plant Species,Cyclocarya paliurus显示文摘Cyclocarya paliurus is a relict plant species that survived the last glacial period and shows a population expansion recently.Its leaves have been traditionally used to treat obesity and diabetes with the well-known active ingredient cyclocaric acid B.Here,we presented three C.paliurus genomes from two diploids with different flower morphs and one haplotype-resolved tetraploid assembly.Comparative genomic analysis revealed two rounds of recent whole-genome duplication events and identified 691 genes with dosage effects that likely contribute to adaptive evolution through enhanced photosynthesis and increased accumulation of triterpenoids.Resequencing analysis of 45 C.paliurus individuals uncovered two bottlenecks,consistent with the known events of environmental changes,and many selectively swept genes involved in critical biological functions,including plant defense and secondary metabolite biosynthesis.We also proposed the biosynthesis pathway of cyclocaric acid B based on multi-omics data and identified key genes,in particular gibberellinrelated genes,associated with the heterodichogamy in C.paliurus species.Our study sheds light on evolutionary history of C.paliurus and provides genomic resources to study the medicinal herbs. | Yinquan Qu Xulan Shang Ziyan Zeng Yanhao Yu Guoliang Bian Wenling Wang Li Liu Li Tian Shengcheng Zhang Qian Wang Dejin Xie Xuequn Chen Zhenyang Liao Yibin Wang Jian Qin Wanxia Yang Caowen Sun Xiangxiang Fu Xingtan Zhang Shengzuo Fang | 2023 | Genomics, Proteomics & Bioinformatics2023,21,3: | 1 |
| 14 | A dual-regulation strategy of B/N codoped CNT-encapsulated Ni nanoparticles as a catalytic host and separator coating promises high-performance Li-S batteries显示文摘A dual-regulation strategy of adopting B/N codoped carbon nanotube-encapsulated nickel nanoparticles(Ni@BNCNT) as a sulfur host and separator coating is proposed for high-performance Li-S batteries. On the cathode side, the 3D conductive network structure of Ni@BNCNT is favorable for high sulfur utilization, and the collaboration between polar metal Ni nanoparticles(NPs) and doped B/N elements facilitates the chemical adsorption of Li polysulfides(Li PSs). In addition, these metal Ni NPs exhibit a satisfactory catalytic effect on the polysulfide conversion. Moreover, using the Ni@BNCNT interlayer can further capture the soluble Li PSs, make them convert quickly, and prevent them from diffusing toward the anode side. The Li-S batteries simultaneously equipped with a S/Ni@BNCNT cathode and Ni@BNCNT interlayer show high reversible capacity and good cycle stability. Additionally, even at a sulfur loading of 3.5 mg cm;and an electrolyte/sulfur ratio of 3 μL mg;, excellent battery performance can be achieved. We believe that this work offers a new strategy based on combining a catalytic host and separator coating to construct high-efficiency Li-S batteries. | XIONG DongGen XU Ling XU Jian ZHANG XiangXiang LI Jia XU YuQing ZHANG Ze YU Ji YANG ZhenYu | 2022 | Science China(Technological Sciences)2022,65,7: | 1 |
| 15 | Measurement of Martian atmospheric winds by the O_(2) 1.27 μm airglow observations using Doppler Michelson Interferometry: A concept study显示文摘China’s Mars exploration mission has stimulated tremendous interest in planetary science exploration recently.To propose potential scientific research projects,this study presents a concept simulation for the measurement of Martian atmospheric winds using the Doppler Michelson interferometry technique.The simulation is based on the satellite instrument initially designed for the Dynamic Atmosphere Mars Observer(DYNAMO)project to measure vertical profiles of winds from the 1.27μm airglow observations in the Martian atmosphere.A comprehensive DYNAMO measurement simulation forward model based on an orbit submodel,an atmospheric background field submodel,and an instrument submodel is developed using the Michelson equation.The simulated interferogram signal over the field of view(FOV)calculated by the forward model is associated with the filter transmittance function,column emission rate of airglow,wind velocity,temperature,and the Michelson phase.The agreement between the derived atmospheric signals from the simulated interferogram without altitude inversion and the input parameters used to initiate the forward model confirms the validity of the forward model. | Na YANG Chunliang XIA Tao YU Xiaomin ZUO Yangyi SUN Xiangxiang YAN Jian ZHANG Jin WANG Huijun LE Libo LIU William Edmund WARD | 2021 | Science China Earth Sciences2021,64,11: | 1 |
| 16 | A universal hydrochloric acid-assistant powder-to-powder strategy for quick and mass preparation of lead-free perovskite microcrystals显示文摘Lead-free halide perovskite materials possess low toxicity,broadband luminescence and robust stability compared with conventional lead-based perovskites,thus holding great promise for eyes-friendly white light LEDs.However,the traditionally used preparation methods with a long period and limited product yield have curtailed the commercialization of these materials.Here we introduce a universal hydrochloric acid-assistant powder-to-powder strategy which can accomplish the goals of thermal-,pressure-free,eco-friendliness,short time,low cost and high product yield,simultaneously.The obtained Cs_(2)Na_(0.9)Ag_(0.1)In_(0.95)Bi_(0.05)Cl_(6)microcrystals exhibit bright self-trapped excitons emission with quantum yield of(98.3±3.8)%,which could retain(90.5±1.3)%and(96.8±0.8)%after continuous heating or ultraviolet-irradiation for 1000 h,respectively.The phosphor converted-LED exhibited near-unity conversion efficiency from ultraviolet chip to self-trapped excitons emission at~200 mA.Various ions doping(such as Cs_(2)Na_(0.9)Ag_(0.1)InCl_(6):Ln^(3+))and other derived lead-free perovskite materials(such as Cs_(2)ZrCl_(6)and Cs_(4)MnBi_(2)Cl_(12))with high luminous performance are all realized by our proposed strategy,which has shown excellent availability towards commercialization. | Huanxin Yang Xiangxiang Chen Yiyue Chu Changjiu Sun Haolin Lu Mingjian Yuan Yuhai Zhang Guankui Long Libing Zhang Xiyan Li | 2023 | Light(Science & Applications)2023,12,4: | 0 |
| 17 | An improved evaluation of the neutron background in the PandaX-Ⅱ experiment显示文摘In dark matter direct detection experiments,neutron is a serious source of background,which can mimic the dark matter-nucleus scattering signals.In this paper,we present an improved evaluation of the neutron background in the PandaX-II dark matter experiment by a novel approach.Instead of fully relying on the Monte Carlo simulation,the overall neutron background is determined from the neutron-induced high energy signals in the data.In addition,the probability of producing a dark-matter-like background per neutron is evaluated with a complete Monte Carlo generator,where the correlated emission of neutron(s)andγ(s)in the(α,n)reactions and spontaneous fissions is taken into consideration.With this method,the neutron backgrounds in the Run 9(26-ton-day)and Run 10(28-ton-day)data sets of PandaX-II are estimated to be(0.66±0.24)and(0.47±0.25)events,respectively. | QiuHong Wang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui YingJie Fan DeQing Fang ChangBo Fu LiSheng Geng Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo Ke Han ChangDa He Di Huang Yan Huang YanLin Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju YiHui Lai Kun Liang HuaXuan Liu JiangLai Liu WenBo Ma YuGang Ma YaJun Mao Yue Meng Parinya Namwongsa KaiXiang Ni JinHua Ning XuYang Ning XiangXiang Ren ChangSong Shang Lin Si AnDi Tan AnQing Wang HongWei Wang Meng Wang SiGuang Wang XiuLi Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu Jumin Yuan Dan Zhang HongGuang Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou | 2020 | Science China(Physics,Mechanics & Astronomy)2020,63,3: | 0 |
| 18 | Constraining self-interacting dark matter with the full dataset of PandaX-II显示文摘Self-interacting dark matter(SIDM)is a leading candidate proposed to solve discrepancies between predictions of the prevailing cold dark matter theory and observations of galaxies.Many SIDM models predict the existence of a light force carrier that mediates strong dark matter self-interactions.If the mediator couples to the standard model particles,it could produce characteristic signals in dark matter direct detection experiments.We report searches for signals of SIDM models with a light mediator using the full dataset of the PandaX-II experiment,basing on a total exposure of 132 tonne-days.No significant excess over background is found,and our likelihood analysis leads to a strong upper limit on the dark matter-nucleon coupling strength.We further combine the PandaX-II constraints and those from observations of the light element abundances in the early universe,and show that direct detection and cosmological probes can provide complementary constraints on dark matter models with a light mediator. | Jijun Yang Abdusalam Abdukerim Wei Chen Xun Chen Yunhua Chen Chen Cheng Xiangyi Cui Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han Changda He Shengming He Di Huang Yan Huang Ran Huo Yanlin Huang Zhou Huang Xiangdong Ji Yonglin Ju Shuaijie Li Qing Lin Huaxuan Liu Jianglai Liu Xiaoying Lu Wenbo Ma Yugang Ma Yajun Mao Yue Meng Nasir Shaheed Kaixiang Ni Jinhua Ning Xuyang Ning Xiangxiang Ren Changsong Shang Guofang Shen Lin Si Andi Tan Anqing Wang Hongwei Wang Meng Wang QiuHong Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Mengmeng Wu Shiyong Wu Weihao Wu Jingkai Xia Mengjiao Xiao Xiang Xiao Pengwei Xie Binbin Yan Yong Yang Chunxu Yu Hai-Bo Yu Jumin Yuan Ying Yuan Xinning Zeng Dan Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou | 2021 | Science China(Physics,Mechanics & Astronomy)2021,64,11: | 0 |
| 19 | Shunxin decoction(顺心组方) improves diastolic function in rats with heart failure with preserved ejection fraction induced by abdominal aorta constriction through cyclic guanosine monophosphate-dependent protein kinase Signaling Pathway显示文摘OBJECTIVE: To determine whether Shunxin decoction(顺心组方) improves diastolic function in rats with heart failure with preserved ejection fraction(HFp EF) by regulating the cyclic guanosine monophosphatedependent protein kinase(c GMP-PKG) signaling pathway. METHODS: Except for control group 8 and sham surgery group 8, the remaining 32 male Sprague-Dawlay rats were developed into HFp EF rat models using the abdominal aorta constriction method. These rats in the HFp EF model were randomly divided into the model group, the Shunxin high-dose group, the Shunxin lowdose group, and the Qiliqiangxin capsule group. The three groups received high-dose Shunxin decoction, lowdose Shunxin decoction, and Qiliqiangxin capsule by gavage, respectively, for 14 d. After the intervention, the diastolic function of each rat was evaluated by testing E/A, heart index, hematoxylin-eosin staining, Masson, myocardial ultrastructure, and N-terminal pro-brain natriuretic peptide(NT-pro BNP). The Bioinformatics Analysis Tool for Molecular Mechanism of Traditional Chinese Medicine(BATMAN-TCM) software was used to predict targets for which Shunxin decoction acts on the c GMP-PKG pathway. Natriuretic peptide receptor A(NPRA) and guanylate cyclase(GC) were detected by immunohistochemistry, and e NOS, phosphodiesterase 5A(PDE5A), and c GMP-dependent protein kinase 1(PKG I) were determined by Western blotting. RESULTS: Compared to the model group, the thickness of the interventricular septum at the end of diastole(IVSd) and the thickness of the posterior wall at the end of diastole(PWd) of the Shunxin decoction high-dose group, Shunxin decoction low-dose group, and Qiliqiangxin capsule group were all significantly reduced(P < 0.01). Furthermore, Shunxin decoction high-dose group E/A value was decreased(P < 0.01). Compared to the model group, the expression of NPRA and GC increased in the Shunxin decoction low-dose group and the Qiliqiangxin capsule group(P < 0.01). Compared to the model group, the expressions of e NOS and PKG I increased(P < 0.05) in the Shunxin decoction high-dose group. The expression of PDE5A expression decreased in the myocardium of the Shunxin decoction high-dose group, Shunxin decoction low-dose group, and Qiliqiangxin capsule group compared to the model group(P < 0.01). CONCLUSIONS: Shunxin decoction can improve diastolic function in rats with HFp EF. It increases the expression of NPRA, GC, and e NOS in the myocardial cell c GMP-PKG signaling pathway, upregulates c GMP expression, decreases PDE5A expression to reduce the c GMP degradation. Thus, the c GMP continually stimulates PKG I, reversing myocardial hypertrophy and improving myocardial compliance in HFp EF rats. | ZHANG Jiaying WEI Xiangxiang LI Xuefeng YUAN Yang DOU Yinghuan SHI Yanbin XIE Ping ZHOU Mengru ZHAO Junnan LI Miao ZHANG Shuwen ZHU Rui TIAN Ying TAN Hao TIAN Feifei | 2022 | Journal of Traditional Chinese Medicine2022,42,5: | 0 |
| 20 | Determination of Double Beta Decay Half-Life of 136Xe with the PandaX-4T Natural Xenon Detector显示文摘Precise measurement of two-neutrino double beta decay(DBD)half-life is an important step for the searches of Majorana neutrinos with neutrinoless double beta decay.We report the measurement of DBD half-life of 136xe using the Pandax-4T dual-phase Time Projection Chamber(TPC)with 3.7-tonne natural xenon and the first 94.9-day physics data release. | Lin Si Zhaokan Cheng Abdusalam Abdukerim Zihao Bo Wei Chen Xun Chen Yunhua Chen Chen Cheng Yunshan Cheng Xiangyi Cui Yingjie Fan Deqing Fang Changbo Fu Mengting Fu Lisheng Geng Karl Giboni Linhui Gu Xuyuan Guo Ke Han Changda He Jinrong He Di Huang Yanlin Huang Zhou Huang Ruquan Hou Xiangdong Ji Yonglin Ju Chenxiang Li Jiafu Li Mingchuan Li Shu Li Shuaijie Li Qing Lin Jianglai Liu Xiaoying Lu Lingyin Luo Yunyang Luo Wenbo Ma Yugang Ma Yujun Mao Yue Meng Nasir Shaheed Xiaofeng Shang Xuyang Ning Ningchun Qi Zhicheng Qian Xiangxiang Ren Changsong Shang Guofang Shen Wenliang Sun Andi Tan Yi Tao Anqing Wang Meng Wang Qiuhong Wang Shaobo Wang Siguang Wang Wei Wang Xiuli Wang Zhou Wang Yuehuan Wei Mengmeng Wu Weihao Wu Jingkai Xia Mengjiao Xiao Xiang Xiao Pengwei Xie Binbin Yan Xiyu Yan Yong Yang Chunxu Yu Jumin Yuan Ying Yuan Zhe Yuan Dan Zhang Minzhen Zhang Peng Zhang Shibo Zhang Shu Zhang Tao Zhang Li Zhao Qibin Zheng Jifang Zhou Ning Zhou Xiaopeng Zhou Yong Zhou | 2023 | Research2023,,2: | 0 |