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1Liuwei Dihuang pill suppresses metastasis by regulating the wnt pathway and disrupting β-catenin/T cell factor interactions in a murine model of triple-negative breast cancer显示文摘OBJECTIVE:To investigate if the Liuwei Dihuang pill(LWDHP)can inhibit metastasis to the liver and lungs in mice bearing triple-negative breast cancer(TNBC),and the molecular mechanism underpinning this action.METHODS:Ninety-nine TNBC bearing-mice were distributed randomly to five groups:control(Con),paclitaxel(PTX),low-dose LWDHP(LLP,2.3 g·kg^-1·d^-1),middle-dose LWDHP(MLP,4.6 g·kg^-1·d^-1)and high-dose LWDHP(HLP,9.2 g·kg^-1·d^-1).The LWDHP were administered(p.o.)to the agonal stage.The morphology of BC cells was observed by hematoxylin&eosin staining.Expression of axin-2,β-catenin,T cell factor(TCF),cyclin-D1 and vascular endothelial growth factor(VEGF)was detected by western blotting or immunofluorescence.β-catenin/TCF-1 interaction was measured using a co-immunoprecipitation assay.RESULTS:After LWDHP treatment,metastasis of BC cells to the lungs and liver was inhibited,expression of axin-2 was increased,expression of TCF-1,β-catenin,cyclin-D1 and VEGF was decreased,andβ-catenin/TCF-1 interaction was disrupted.CONCLUSION:The LWDHP could inhibit metastasis of BC cells to the liver and lungs.The molecular mechanism underlying this action may be regulation of protein expression andβ-catenin/TCF-1 interactions in the Wnt pathway.Zheng Lixiang Zheng Qing Yu Zhipeng Wang Jian Ren Xiaoying Gong Yan Yang Xue Hunag Ping Weng Meizhi Liu Hongning Liu Haizhou 2019Journal of Traditional Chinese Medicine2019,39,6:9
2LICOM Model Datasets for the CMIP6 Ocean Model Intercomparison Project显示文摘The datasets of two Ocean Model Intercomparison Project(OMIP)simulation experiments from the LASG/IAP Climate Ocean Model,version 3(LICOM3),forced by two different sets of atmospheric surface data,are described in this paper.The experiment forced by CORE-II(Co-ordinated Ocean–Ice Reference Experiments,Phase II)data(1948–2009)is called OMIP1,and that forced by JRA55-do(surface dataset for driving ocean–sea-ice models based on Japanese 55-year atmospheric reanalysis)data(1958–2018)is called OMIP2.First,the improvement of LICOM from CMIP5 to CMIP6 and the configurations of the two experiments are described.Second,the basic performances of the two experiments are validated using the climatological-mean and interannual time scales from observation.We find that the mean states,interannual variabilities,and long-term linear trends can be reproduced well by the two experiments.The differences between the two datasets are also discussed.Finally,the usage of these data is described.These datasets are helpful toward understanding the origin system bias of the fully coupled model.Pengfei LIN Zhipeng YU Hailong LIU Yongqiang YU Yiwen LI Jirong JIANG Wei XUE Kangjun CHEN Qian YANG Bowen ZHAO Jilin WEI Mengrong DING Zhikuo SUN Yaqi WANG Yao MENG Weipeng ZHENG Jinfeng MA 2020Advances in Atmospheric Sciences2020,37,3:9
3Multiple-Element Matching Reservoir Formation and Quantitative Prediction of Favorable Areas in Superimposed Basins显示文摘在韦斯特中国的附加的盆经历了多级式的构造事件和 multicycle 烃水库形成,并且复杂的烃水库在这种类型的盆广泛地被发现了。大多数复杂的烃水库被重定位,规模重建,部件变化和阶段国家转变描绘,并且他们的分布是很困难的预言。研究显示出那地区性的 caprock (C) ,高质量的沉积外形(存款, D ) , paleohighs (山, M ) 并且来源岩石(S) 是贡献复杂的烃水库形成和西方的附加的盆的分发的四个地质的元素。四个元素的纵的顺序的联合控制烃水库形成的阶层,并且平面重迭和联合控制烃水库的范围,他们在 geohistory 的同时的联合效果决定烃水库形成的时间。多重元素的匹配水库形成介绍水库形成的一个基本模式在里面附加的盆,和我们建议它被表示为 T-CDMS。基于多重元素的匹配水库形成模式,一个全面水库形成索引(Tcdms ) 在这篇论文被开发描绘水库形成条件,和一个方法被介绍在附加的盆预言水库形成范围和出现的概率。通过新理论,方法和技术的申请,在奥陶纪的出现的有利水库形成范围和概率在四个不同水库形成时期在 Tarim 盆指向地区被预言。结果证明中央 Tarim, Yinmaili 和 Lunnan 是奥陶纪油和煤气的地可能形成了的三个很有利的区域。有当前发现的烃水库的预言结果的巧合到达 97% 。这反映新理论,方法和技术的有效性和可靠性。WANG Huaijie PANG Xiongqi WANG Zhaoming YU Qiuhua HUO Zhipeng MENG Qingyang 2010Acta Geologica Sinica(English Edition)2010,84,5:8
4A theoretical model for mid-and low-latitude ionospheric electric fields in realistic geomagnetic fields显示文摘The geomagnetic fields,which play important roles in the ionospheric dynamo,can greatly affect the global distribution of ionospheric electric fields,currents and other ionospheric electrodynamics phenomena.In the study of ionospheric electrodynamics phenomena,such as the longitudinal variations of ionospheric electric fields,the non-dipolar component of the geomagnetic fields must be taken into account.In this paper,we deduce a theoretical electric field model for ionospheric dynamo at mid-and low-latitude which adopt a modified magnetic apex coordinates system.In the new electric field model,the geomagnetic fields can be calculated from either the IGRF model or the dipole field model,and the neutral winds and conductivities are calculated based on empirical models.Then the dynamo equation for the electric potential is finally solved in terms of the line-by-line iteration method,and the ionospheric electric fields and currents are derived from the calculated potential.Our model can reproduce the main features of the ionospheric electrodynamics processes,so it will be a useful tool for the investigation of the upper atmosphere and ionosphere.REN ZhiPeng WAN WeiXing WEI Yong LIU LiBo YU Tao 2008Chinese Science Bulletin2008,53,24:7
5Determination of Interfacial Heat Transfer Behavior at the Metal/Shot Sleeve of High Pressure Die Casting Process of AZ91D Alloy显示文摘The interfacial heat transfer behavior at the metal/shot sleeve interface in the high pressure die casting(HPDC) process of AZ91 D alloy is carefully investigated.Based on the temperature measurements along the shot sleeve,inverse method has been developed to determine the interfacial heat transfer coefficient in the shot sleeve.Under static condition,Interfacial heat transfer coefficient(IHTC) peak values are 11.9,7.3,8.33 k W m^(-2)K^(-1)at pouring zone(S2),middle zone(S5),and end zone(S10),respectively.During the casting process,the IHTC curve displays a second peak of 6.1 k W m^(-2)K^(-1)at middle zone during the casting process at a slow speed of 0.3 m s^(-1).Subsequently,when the high speed started,the IHTC curve reached a second peak of 12.9 k W m^(-2)K^(-1)at end zone.Furthermore,under different slow casting speeds,both the calculated initial temperature(TIDS) and the maximum temperature(Tsimax) of shot sleeve surface first decrease from 0.1 m s^(-1)to 0.3 m s^(-1),but increase again from 0.3 m s^(-1)to 0.6 m s^(-1).This result agrees with the experimental results obtained in a series of 'plate-shape' casting experiments under different slow speeds,which reveals that the amount of ESCs decreases to the minimum values at 0.3 m s^(-1)and increase again with the increasing casting slow speed.Wenbo Yu Yongyou Cao Xiaobo Li Zhipeng Guo Shoumei Xiong 2017Journal of Materials Science & Technology2017,33,1:7
6Response of Pinus taiwanensis growth to climate changes at its southern limit of Daiyun Mountain, China's Mainland Fujian Province显示文摘The Pinus taiwanensis trees of a Chinese endemic species form pure forests at infertile sites in humid subtropical China, which can aid soil reservation and ecological resiliency at such sites. Herein, we used dendrochronological methods to investigate the growth patterns and their relationship with climate by analyzing 158 cores of 79 P. taiwanensis trees at 4 sites in their southernmost distribution in China's Mainland at Daiyun Mountain in Fujian Province. Tree growths at sites with favorable conditions generally showed an age-related growth trend, which decreased from approximately 5 mm to 0.5 mm in about a century. Trees in moderately stressed environments established high growth in their juvenile periods but were highly susceptible to environmental stresses such as a sharp growth decline in the 1990 s. The temperature in February and the moisture in July are the major limiting factors for most of the tree growths, except for a few extremely stressed P. taiwanensis trees. The growth of the dwarf P. taiwanensis trees, with all ring diameters of the first 20 years less than 4 mm, is mainly limited by the dry climate in May. Under the potential future warming trend, drought stress can be particularly threatening to these dwarf P. taiwanensis trees, which are likely to be the germplasm resources for this species in this region.CHEN Dan FANG KeYan LI YingJun DONG ZhiPeng ZHANG Yu ZHOU FeiFei 2016Science China Earth Sciences2016,59,2:6
7Disruption of adipocyte HIF-1α improves atherosclerosis through the inhibition of ceramide generation显示文摘Atherosclerosis is a chronic multifactorial cardiovascular disease.Western diets have been reported to affect atherosclerosis through regulating adipose function.In high cholesterol diet-fed ApoE^(−/−)mice,adipocyte HIF-1αdeficiency or direct inhibition of HIF-1αby the selective pharmacological HIF-1αinhibitor PX-478 alleviates high cholesterol diet-induced atherosclerosis by reducing adipose ceramide generation,which lowers cholesterol levels and reduces inflammatory responses,resulting in improved dyslipidemia and atherogenesis.Smpd3,the gene encoding neutral sphingomyelinase,is identified as a new target gene directly regulated by HIF-1αthat is involved in ceramide generation.Injection of lentivirus-SMPD3 in epididymal adipose tissue reverses the decrease in ceramides in adipocytes and eliminates the improvements on atherosclerosis in the adipocyte HIF-1α-deficient mice.Therefore,HIF-1αinhibition may constitute a novel approach to slow atherosclerotic progression.Pengcheng Wang Guangyi Zeng Yu Yan Song-yang Zhang Yongqiang Dong Yangming Zhang Xingzhong Zhang Huiying Liu Zhipeng Zhang Changtao Jiang Yanli Pang 2022Acta Pharmaceutica Sinica B2022,12,4:6
8Adaptive optical focusing through perturbed scattering media with a dynamic mutation algorithm显示文摘Optical imaging through or inside scattering media, such as multimode fiber and biological tissues, has a significant impact in biomedicine yet is considered challenging due to the strong scattering nature of light. In the past decade, promising progress has been made in the field, largely benefiting from the invention of iterative optical wavefront shaping, with which deep-tissue high-resolution optical focusing and hence imaging becomes possible. Most of the reported iterative algorithms can overcome small perturbations on the noise level but fail to effectively adapt beyond the noise level, e.g., sudden strong perturbations. Reoptimizations are usually needed for significant decorrelation to the medium since these algorithms heavily rely on the optimization performance in the previous iterations. Such ineffectiveness is probably due to the absence of a metric that can gauge the deviation of the instant wavefront from the optimum compensation based on the concurrently measured optical focusing.In this study, a square rule of binary-amplitude modulation, directly relating the measured focusing performance with the error in the optimized wavefront, is theoretically proved and experimentally validated. With this simple rule, it is feasible to quantify how many pixels on the spatial light modulator incorrectly modulate the wavefront for the instant status of the medium or the whole system. As an example of application, we propose a novel algorithm, the dynamic mutation algorithm, which has high adaptability against perturbations by probing how far the optimization has gone toward the theoretically optimal performance. The diminished focus of scattered light can be effectively recovered when perturbations to the medium cause a significant drop in the focusing performance, which no existing algorithms can achieve due to their inherent strong dependence on previous optimizations. With further improvement, the square rule and the new algorithm may boost or inspire many applications, such as high-resolution optical imaging and stimulation, in instable or dynamic scattering environments.HUANHAO LI CHI MAN WOO TIANTING ZHONG ZHIPENG YU YUNQI LUO YUANJIN ZHENG XIN YANG HUI HUI PUXIANG LAI 2021Photonics Research2021,9,2:6
9Design of Vegetable Pot Seedling Pick‑up Mechanism with Planetary Gear Train显示文摘It has been challenging to design seedling pick-up mechanism based on given key points and trajectories,because it involves dimensional synthesis and rod length optimization.In this paper,the dimensional synthesis of seedling pickup mechanism with planetary gear train was studied based on the data of given key points and the trajectory of the endpoint of seedling pick-up mechanism.Given the positions and orientations requirements of the five key points,the study first conducted a dimensional synthesis of the linkage size and center of rotation.The next steps were to select a reasonable solution and optimize the data values based on the ideal seedling trajectory.The link motion was driven by the planetary gear train of the two-stage gear.Four pitch curves of noncircular gears were obtained by calculating and distributing the transmission ratio according to the data.For the pitch curve with two convex points,the tooth profile design method of incomplete noncircular gear was applied.The seedling pick-up mechanism was tested by a virtual prototype and a physical prototype designed with the obtained parameter values.The results were consistent with the theoretical design requirements,confirming that the mechanism meets the expected requirements for picking seedlings up.This paper presents a new design method of vegetable pot seedling pick-up mechanism for an automatic vegetable transplanter.Zhipeng Tong Gaohong Yu Xiong Zhao Pengfei Liu Bingliang Ye 2020Chinese Journal of Mechanical Engineering2020,33,4:6
10Identification and molecular mechanism of angiotensin-converting enzyme inhibitory peptides from Larimichthys crocea titin显示文摘This study aimed to identify novel ACEI peptides from Larimichthys crocea titin using in silico approaches and to clarify the molecular interaction mechanism.The hydrolyzed peptides of titin were compared with known ACEI peptides in the AHTPDB and BIOPEP-UWM database.Furthermore,peptides were evaluated for their solubility,ADMET properties,ΔG(kcal/mol)values,and in vitro ACEI activity.Molecular mechanism of ACE-peptide was performed by molecular interactions and binding orientation study.The results revealed that IC50 values of Trp-Ala-Arg(WAR)and Trp-Gln-Arg(WQR)were(31.2±0.8)and(231.33±0.02)mol/L,respectively.The docking interactions result suggested that ACE-WAR and ACEWQR complexes have same binding site,including the residues LYS511,TYR520,TYR523,HIS353,and HIS513.Molecular docking of two tripeptides WAR and WQR with ACE studies predicted their binding site and clarified the interaction between ACE and its inhibitors.The molecular docking data are consistent with the ACE inhibitory activity of the studied peptides.The results showed that Larimichthys crocea titin may be a valuable source for developing nutraceutical food.Yue Fan Zhipeng Yu Wenzhu Zhao Long Ding Fuping Zheng Jianrong Li Jingbo Liu 2020Food Science and Human Wellness2020,9,3:5
11Geospatial Service Web:towards integrated cyberinfrastructure for GIScience显示文摘A geospatial cyberinfrastructure is needed to support advanced GIScience research and education activities.However,the heterogeneous and distributed nature of geospatial resources creates enormous obstacles for building a unified and interoperable geospatial cyberinfrastructure.In this paper,we propose the Geospatial Service Web(GSW)to underpin the development of a future geospatial cyberinfrastructure.The GSW excels over the traditional spatial data infrastructure by providing a highly intelligent geospatial middleware to integrate various geospatial resources through the Internet based on interoperable Web service technologies.The development of the GSW focuses on the establishment of a platform where data,information,and knowledge can be shared and exchanged in an interoperable manner.Theoretically,we describe the conceptual framework and research challenges for GSW,and then introduce our recent research toward building a GSW.A research agenda for building a GSW is also presented in the paper.GONG Jianya WU Huayi ZHANG Tong GUI Zhipeng LI Zhenlong YOU Lan SHEN Shengyu ZHENG Jie GENG Jing QI Kunlun YANG Wenjing LI Zhenqiang YU Jingmin 2012Geo-Spatial Information Science2012,15,2:5
12Study on pneumatic-fuel hybrid system based on waste heat recovery from cooling water of internal combustion engine显示文摘The paper proposes a novel pneumatic-fuel hybrid system,which combines a traditional internal combustion engine(ICE)and a pneumatic engine.One important merit of this concept is that the system can recover waste from cooling water of internal combustion engine to optimize the working process of pneumatic engine,and thus to improve the entire efficiency of the hybrid system.Meanwhile,energy-saving effect due to lower cooling fan power can be achieved on ICE by waste heat recovery of pneumatic engine.Based on thermodynamic analysis,an experimental system is designed and established for verification.The experimental results show that the performance of pneumatic engine is improved when the waste heat recovery concept of the hybrid system is applied.Then an application example on a 4-cylinder engine is analyzed and discussed using numerical simulation.The results show that the fan power of the ICE cooling system can be saved up to 50%by applying the hybrid system.Considering the appreciable improvements on the energy efficiency with only limited system modifications when the concept is applied to traditional ICE based power systems,the proposed hybrid concept has the potential to serve as an alternative technology aiming for energy saving and emission reduction.FANG YiDong LI DaoFei FAN ZhiPeng XU HuanXiang WANG Lei YU XiaoLi 2013Science China(Technological Sciences)2013,56,12:5
13Edge enhancement through scattering media enabled by optical wavefront shaping显示文摘Edge enhancement is a fundamental and important topic in imaging and image processing,as perception of edge is one of the keys to identify and comprehend the contents of an image.Edge enhancement can be performed in many ways,through hardware or computation.Existing methods,however,have been limited in free space or clear media for optical applications;in scattering media such as biological tissue,light is multiple scattered,and information is scrambled to a form of seemingly random speckles.Although desired,it is challenging to accom-plish edge enhancement in the presence of multiple scattering.In this work,we introduce an implementation of optical wavefront shaping to achieve efficient edge enhancement through scattering media by a two-step operation.The first step is to acquire a hologram after the scattering medium,where information of the edge region is accurately encoded,while that of the nonedge region is intentionally encoded with inadequate accuracy.The second step is to decode the edge information by time reversing the scattered light.The capability is demonstrated experimentally,and,further,the performance,as measured by the edge enhancement index(EI)and enhancement-to-noise ratio(ENR),can be controlled easily through tuning the beam ratio.EI and ENR can be reinforced by^8.5 and^263 folds,respectively.To the best of our knowledge,this is the first demonstration that edge information of a spatial pattern can be extracted through strong turbidity,which can potentially enrich the comprehension of actual images obtained from a complex environment.ZIHAO LI ZHIPENG Yu HUI HUI HUANHAO LI TIANTING ZHONG HONGLIN LU PUXIANG LA 2020Photonics Research2020,8,6:4
14Relationship Between Perisylvian Essential Language Sites and Arcuate Fasciculus in the Left Hemisphere of Healthy Adults显示文摘Essential language sites and the arcuate fasciculus(AF) have been extensively researched. However, the relationship between them remains insufficiently studied,especially in healthy people. Navigated transcranial magnetic stimulation(n TMS) is increasingly used in language mapping. While enjoying the advantage of non-invasiveness, it is also capable of inducing a virtual lesion in the brain. Thus, it offers the possibility of using the virtuallesion method to study the healthy brain. This study combined n TMS and diffusion tensor imaging(DTI)tractography to investigate the relationship between essential language sites and the AF in 30 healthy right-handedvolunteers. A total of 143 essential language sites were identified using n TMS, and a total of 175 AF terminations were identified using DTI tractography. Sixty-six sites had a direct correlation with the AF, accounting for 46% of the total essential language sites. Forty-seven AF terminations harbored essential language sites, accounting for 27% of the total AF terminations. Upon data rendering to the cortical parcellation system, a region-related heterogeneity of the correlation rate was found. This study provides the first data on the relationship between essential language sites and the AF in healthy adults.Yu Lin Kai Zhang Shuai Li Song Li Jingna Jin Fang Jin Wen Qin Long Hai Meng Zhu Chunshui Yu Zhipeng Liu Tao Yin Xuejun Yang 2017Neuroscience Bulletin2017,33,6:3
15Identifi cation of egg protein-derived peptides as xanthine oxidase inhibitors:virtual hydrolysis,molecular docking,and in vitro activity evaluation显示文摘The purpose of this study was to screen the xanthine oxidase(XO)inhibitory peptides from egg white proteins through virtual hydrolysis,in vitro activity validation,and molecular docking.The results demonstrated that tripeptide EEK from ovalbumin exhibited potent XO inhibitory activity with an IC50 value of 141μmol/L.The molecular docking results showed that tripeptide EEK bound with the active center of XO via 3 carbon hydrogen bond interactions,2 salt bridges,5 conventional hydrogen bond interactions,and 4 attractive charge interactions.The residues Glu802,Phe1009,and Arg880 may play key roles in the XO catalytic reaction.Especially,the key intermolecular forces of inhibiting XO activity may be special type of hydrogen bonds including carbon hydrogen bond interactions and attraction charge interactions.The novel tripeptide EEK is potential candidates for controlling hyperuricemia.Zhipeng Yu Yaxin Cao Ruotong Kan Huizhuo Ji Wenzhu Zhao Sijia Wu Jingbo Liu David Shiuan 2022Food Science and Human Wellness2022,11,6:3
16Multi-walled carbon nanotubes covalently functionalized by axially coordinated metal-porphyrins: Facile syntheses and temporally dependent optical performance显示文摘向轴的方向协调了 metal-porphyrin-functionalized 多围的碳 nanotube (MWCNT ) nanohybrids 经由二条不同合成途径(一个壶 1,3-dipolar cycloaddition 反应和那深奥 1,3-dipolar cycloaddition 由亲核的替换跟随了的一条逐步的途径) 被准备,并且通过分光镜的技术描绘了。到 MWCNT 的表面的听卟啉的附件显著地改进他们处理的溶解度和容易。协调的这些向轴的方向(5,10,15,20-tetraphenylporphyrinato ) 锡(IV )(SnTPP )-MWCNTs 展览重要荧光熄灭。结果的 nanohybrids 的第三顺序的非线性的光性质被与毫微秒和微微秒激光脉搏在 532 nm 使用 Z 扫描技术学习。当分别地,毫微秒或微微秒脉搏被采用时,结果证明 nanohybrids 展出重要反向的可饱和的吸收或可饱和的吸收。在毫微秒政体的改进非线性的吸收在继续到 nanohybrids 上被观察并且被归功于到 MWCNT 和化学上依附的金属卟啉的突出的性质的联合。Aijian Wang Jingbao Song Zhipeng Huang Yinglin Song Wang Yu Huanli Dong Wenping Hu Marie P. Cifuentes Mark G. Humphrey Long Zhang Jianda Shao Chi Zhang 2016Nano Research2016,9,2:3
17Modes of genetic adaptations underlying functional innovations in the rumen显示文摘The rumen is the hallmark organ of ruminants and hosts a diverse ecosystem of microorganisms that facilitates efficient digestion of plant fibers.We analyzed 897 transcriptomes from three Cetartiodactyla lineages:ruminants,camels and cetaceans,as well as data from ruminant comparative genomics and functional assays to explore the genetic basis of rumen functional innovations.We identified genes with relatively high expression in the rumen,of which many appeared to be recruited from other tissues.These genes show functional enrichment in ketone body metabolism,regulation of microbial community,and epithelium absorption,which are the most prominent biological processes involved in rumen innovations.Several modes of genetic change underlying rumen functional innovations were uncovered,including coding mutations,genes newly evolved,and changes of regulatory elements.We validated that the key ketogenesis rate-limiting gene(HMGCS2)with five ruminant-specific mutations was under positive selection and exhibits higher synthesis activity than those of other mammals.Two newly evolved genes(LYZ1 and DEFB1)are resistant to Gram-positive bacteria and thereby may regulate microbial community equilibrium.Furthermore,we confirmed that the changes of regulatory elements accounted for the majority of rumen gene recruitment.These results greatly improve our understanding of rumen evolution and organ evo-devo in general.Xiangyu Pan Yudong Cai Zongjun Li Xianqing Chen Rasmus Heller Nini Wang Yu Wang Chen Zhao Yong Wang Han Xu Songhai Li Ming Li Cunyuan Li Shengwei Hu Hui Li Kun Wang Lei Chen Bin Wei Zhuqing Zheng Weiwei Fu Yue Yang Tingting Zhang Zhuoting Hou Yueyang Yan Xiaoyang Lv Wei Sun Xinyu Li Shisheng Huang Lixiang Liu Shengyong Mao Wenqing Liu Jinlian Hua Zhipeng Li Guojie Zhang Yulin Chen Xihong Wang Qiang Qiu Brian PDalrymple Wen Wang Yu Jiang 2021Science China(Life Sciences)2021,64,1:3
18Understanding divergent domestication traits from the whole-genome sequencing of swamp-and river-buffalo populations显示文摘Domesticated buffaloes have been integral to rice-paddy agro-ecosystems formillennia,yet relatively little is known about the buffalo genomics.Here,we sequenced and assembled reference genomes for both swamp and river buffaloes and we re-sequenced 230 individuals(132 swamp buffaloes and 98 river buffaloes)sampled from across Asia and Europe.Beyond the many actionable insights that our study revealed about the domestication,basic physiology and breeding of buffalo,we made the striking discovery that the divergent domestication traits between swamp and river buffaloes can be explained with recent selections of genes on social behavior,digestion metabolism,strengths and milk production.Xier Luo Yu Zhou Bing Zhang Yi Zhang Xiaobo Wang Tong Feng Zhipeng Li Kuiqing Cui Zhiqiang Wang Chan Luo Hui Li Yanfei Deng Fenghua Lu Jianlin Han Yongwang Miao Huaming Mao Xiaoyan Yi Cheng Ai Shigang Wu Alun Li Zhichao Wu Zijun Zhuo Do Da Giang Bikash Mitra Mohammad Farhad Vahidi Shahid Mansoor Sahar Ahmed Al-Bayatti Eka Meutia Sari Neena Amatya Gorkhali Sigit Prastowo Laiba Shafique Guoyou Ye Qian Qian Baoshan Chen Deshun Shi Jue Ruan Qingyou Liu 2020National Science Review2020,7,3:3
19Biological evaluation and interaction mechanism of beta-site APP cleaving enzyme 1 inhibitory pentapeptide from egg albumin显示文摘Inhibition of beta-site APP cleaving enzyme1(BACE1)is one of the most promising therapeutic approaches for Alzheimer’s disease.To find natural products for the treatment of Alzheimer’s disease,absorption,distribution,metabolism,excretion and toxicity(ADMET)properties and in vitro BACE1 inhibitory activity of the peptides isolated from egg albumin were evaluated.Then,molecular docking and molecular dynamics simulation were used to explain the molecular mechanism of the interactions between BACE1 and peptides.The IC50 value of peptide KLPGF,with satisfactory ADMET properties,against BACE1 was(8.30±0.56)mmol/L.Molecular docking revealed that KLPGF contacted with the residues of BACE1’s active sites through twelve hydrogen bonds interactions,two hydrophobic interactions,one electrostatic interaction,and two Pi-cation interactions.The 5 ns molecular dynamics simulations confirmed that the structure of KLPGF with BACE1 was stable.Peptide KLPGF contacted the residues Lys321,Asp228,and Asn233 with stable hydrogen bonds.KLPGF may be a potential anti-BACE1 candidate.Zhipeng Yu Sijia Wu Wenzhu Zhao Long Ding David Shiuan Fuping Zheng Jianrong Li Jingbo Liu 2020Food Science and Human Wellness2020,9,2:2
20Calibration of Mars Energetic Particle Analyzer (MEPA)显示文摘The first Mars exploration mission of China(Tianwen-1)is scheduled to be launched in 2020;a charged particle telescope,the Mars Energetic Particle Analyzer(MEPA),is carried as one of the payloads on the orbiter.The MEPA is designed to measure solar energetic particles(SEPs)and galactic cosmic rays(GCRs)in the near-Mars space and in the transfer orbit from Earth to Mars.Before the launch,the MEPA was calibrated in ground experiments with radioactive sources,electronic pulses,and accelerator beams.The calibration parameters,such as energy conversion constants,threshold values for the triggers,and particle identification criteria,were determined and have been stored for onboard use.The validity of the calibration parameters has been verified with radioactive sources and beams.The calibration results indicate that the MEPA can measure charged particles reliably,as designed,and that it can satisfy the requirements of the Tianwen-1 mission.ShuWen Tang Yi Wang HongYun Zhao Fang Fang Yi Qian YongJie Zhang HaiBo Yang CunHui Li Qiang Fu Jie Kong XiangYu Hu Hong Su ZhiYu Sun YuHong Yu BaoMing Zhang Yu Sun ZhiPeng Sun 2020Earth and Planetary Physics2020,4,4:2
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