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1Significance of dredging on sediment denitrification in Meiliang Bay,China:A year long simulation study显示文摘An experiment for studying the effects of sediment dredging on denitrification in sediments was carried out through a one-year incubation of undredged (control) and dredged cores in laboratory. Dredging the upper 30 cm of sediment can significantly affect physico-chemical characteristics of sediments. Less degradation of organic matter in the dredged sediments was found during the experiment. Denitrification rates in the sediments were estimated by the acetylene blockage technique, and ranged from 21.6 to 102.7 nmol N2/(g dry weight (dw)·hr) for the undredged sediment and from 6.9 to 26.9 nmol N2/(g dw·hr) for dredged sediments. The denitrification rates in the undredged sediments were markedly higher (p<0.05) than those in the dredged sediments throughout the incubation, with the exception of February 2006. The importance of various environmental factors on denitrification was assessed, which indicated that denitrification was regulated by temperature. Nitrate was probably the key factor limiting denitrification in both undredged and dredged sediments. Organic carbon played some role in determining the denitrification rates in the dredged sediments, but not in the undredged sediments. Sediment dredging influenced the mineralization of organic matter and denitrification in the sediment; and therefore changed the pattern of inherent cycling of nitrogen.Jicheng Zhong Chengxin Fan Lu Zhang Edward Hall Shiming Ding Bao Li Guofeng Liu 2010Journal of Environmental Sciences2010,22,1:40
2Recombinant Newcastle disease virus expressing African swine fever virus protein 72 is safe and immunogenic in mice显示文摘African swine fever(ASF) is a lethal hemorrhagic disease that affects wild and domestic swine. The etiological agent of ASF is African swine fever virus(ASFV). Since the first case was described in Kenya in 1921, the disease has spread to many other countries. No commercial vaccines are available to prevent ASF. In this study, we generated a recombinant Newcastle disease virus(r NDV) expressing ASFV protein 72(p72) by reverse genetics and evaluated its humoral and cellular immunogenicity in a mouse model. The recombinant virus, r NDV/p72, replicated well in embryonated chicken eggs and was safe to use in chicks and mice. The p72 gene in r NDV/p72 was stably maintained through ten passages. Mice immunized with r NDV/p72 developed high titers of ASFV p72 specific Ig G antibody, and had higher levels of Ig G1 than IgG2 a. Immunization also elicited T-cell proliferation and secretion of IFN-γ and IL-4. Taken together, these results indicate that r NDV expressing ASFV p72 might be a potential vaccine candidate for preventing ASF.Xinxin Chen Jifei Yang Yanhong Ji Edward Okoth Bin Liu Xiaoyang Li Hong Yin Qiyun Zhu 2016Virologica Sinica2016,31,2:18
3Interfacial structure design of MXene-based nanomaterials for electrochemical energy storage and conversion显示文摘2D transition metal carbides,carbonitrides,and nitrides known as MXenes possess high electrical conductivity,large redox active surface area,rich surface chemistry,and tunable structures.Benefiting from these exceptional chemical and physical properties,the applications of MXenes for electrochemical energy storage and conversion have attracted increasing research interests around the world.Notably,the electrochemical performances of MXenes are directly dependent on their synthesis conditions,interfacial chemistries and structural configurations.In this review,we summarize the synthesis techniques of MXenes,as well as the recent advances in the interfacial structure design of MXene-based nanomaterials for electrochemical energy storage and conversion applications.Additionally,we provide an in-depth discussion on the relationship between interfacial structure and electrochemical performance from the perspectives of energy storage and electrocatalysis mechanisms.Finally,the challenges and insights for the future research of interfacial structure design of MXenes are outlined.Jianmin Luo Edward Matios Huan Wang Xinyong Tao Weiyang Li 2020InfoMat2020,2,6:10
4Structural basis of AMPK regulation by adenine nucleotides and glycogen显示文摘激活安培的蛋白质 kinase (AMPK ) 为糖尿病,肥胖,和癌症的治疗是一个中央细胞的精力传感器和精力动态平衡,和一个有希望的药目标的管理者。这里我们人的 α 的现在的低分辨率的水晶结构; 1 β 2 γ 1 holo-AMPK 建筑群跳了到它的 allosteric 调节的人安培和肝糖模仿 cyclodextrin,两个在 phosphorylated (4.05 Å) 并且 non-phosphorylated (4.60 Å) 状态。另外,我们解决了 2.95 Å人的 kinase 领域(KD ) 的结构跳了到邻近的 autoinhibitory 领域(帮助) 并且表现了广泛生物化学并且 mutational 研究。一起,这些研究由安培和肝糖说明 allosteric AMPK 调整的内在的机制,其绑定改变在交替的帮助(安培) 和糖类绑定模块(肝糖) 之间的 equilibria 相互作用。Xiaodan Li Lili Wang X Edward Zhou Jiyuan Ke Parker W de Waal Xin Gu M H Eileen Tan Dongye Wang Donghai Wu H Eric Xu Karsten Melcher 2015Cell Research2015,25,1:8
5Application of Avaatech X-ray fluorescence core-scanning in Sr/Ca analysis of speleothems显示文摘Application of X-ray fluorescence core-scanning(XRF-CS) on both marine and lake sediments has achieved remarkable results. However, its application has not been widely extended to the research on speleothems. In this study, we measure the Sr abundance and the Sr/Ca ratios of three stalagmites(two aragonite stalagmites, one calcite stalagmite) using the state-of-the-art fourth-generation Avaatech high-resolution XRF core scanner. Through comparisons among different scan paths and among different scan resolutions, as well as comparisons with inductively coupled plasma optical emission spectrometer(ICP-OES), Itrax XRF, and Artax XRF results, we confirm that the Avaatech XRF core scanner could precisely, quickly, and nondestructively analyze the high-resolution Sr abundance of speleothems. Furthermore, we combine the stalagmite δ^(18)O records to explore the paleoclimatic significance of the measured stalagmite Sr/Ca.Dong LI Liangcheng TAN Fei GUO Yanjun CAI Youbin SUN Gang XUE Xing CHENG Hong YAN Hai CHENG R.Lawrence EDWARDS Yongli GAO Jessica KELLEY 2019Science China Earth Sciences2019,62,6:7
6Destabilization of strigolactone receptor DWARF14 by binding of ligand and E3-1igase signaling effector DWARF3显示文摘Li-Hua Zhao X Edward Zhou Wei Yi Zhongshan Wu Yue Liu Yanyong Kang Li Hou Parker W de Waal Suling Li Yi Jiang Adrian Scaffidi Gavin R Flematti Steven M Smith Vinh Q Lam Patrick R Griffin YonghongWang Jiayang Li Karsten Melcher H Eric Xu 2015Cell Research2015,25,11:7
7Two Potent α3/5 Conotoxins from Piscivorous Conus achatinus显示文摘每个锥蜗牛生产不同 conotoxins 的混合物并且分泌他们使他们的猎物和食肉动物不能调动。α 3 /5 Conotoxins,从狩猎鱼的锥蜗牛孤立,目标肌肉烟碱的醋胆素受体。从食鱼的 Conus achatinus 的α 3 /5 conotoxin 的结构和功能没被学习。我们综合了二 pentadecamer 肽, Ac1.1a 和 Ac1.1b 与适当二硫化物结合,基于α 3 /5 conotoxinsfrom C 的 cDNA 序列。achatinus。Ac1.1a 和 Ac1.1b 由一仅仅氨基酸残余不同。他们分别地在堵住在 Xenopus laevisoocytes 表示的 recombinant 老鼠肌肉醋胆素受体上有类似的力量,与 36 nM 和 26 nM 的 IC_(50 ) 价值。为 Ac1.1b,开始的三 N 终端氨基酸的删除没改变它的活动,显示 N 终点不涉及和它的受体的相互作用。而且,我们的实验显示两毒素强烈在老鼠肌肉上比较喜欢α _1- δ子单元接口而不是α _1- γ结合部位烟碱的醋胆素受体。这些肽为结构的学习和烟碱的受体的功能提供另外的工具。Li LIU Geoffrey CHEW Edward HAWROT Chengwu CHI Chunguang WANG 2007Acta Biochimica et Biophysica Sinica2007,39,6:5
8Change patterns of oncomelanid snail burden in areas within the Yangtze River drainage after the three gorges dam operated显示文摘Background:An'integrated control'strategy has been implemented within seven provinces at highest risk for schistosomiasis along Yangtze River in Peoples'Republic of China(P.R.China)since 2004.Since O ncom elania hupensis is the only intermediate host of the blood fluke(Schistosom a japonicum),controlling the distribution of snails is considered an essential and effeaive way to reduce the risk of schistosomiasis infection.The study aimed to determine the snail area burden and annual trend among provinces with potential risk for schistosomiasis along the Yangtze River,above and below the Three Gorges Dam(TGD).Methods:This retrospective study utilized data previously collected from the National Parasitic Diseases Control Information Management System(NPDCIMS)on annual snail surveys from 2009 to 2017.Descriptive statistics were performed for analyzing the snail burden by provinces,counties,type of environmental location and year,and mapping was conducted to present the snails distribution.Results:From 2009 to 2017,the total snail infested area decreased by 4.22%,from 372253 hm^2 to 356553 hm^2 within the seven high risk provinces.The majority of snails were found in the marshland and lake regions,outside of control embankments.The total snail burden trend remained relatively stable in upstream regions above the TGD from 2010 to 2015,while the trend decreased within downstream regions during this period.In 2016 and 2017,the total snail burden trend increased in both upstream and downstream provinces,however,upstream saw a larger increase.From 2009 to 2017,there were a total of 5990 hm^2 of newly developed snail areas in the seven study provinces and the majority were concentrated in regions below the TGD,accounting for 5610 hm^2(93.70%).Conclusions:There has been a decline in total snail counts from 2009 to 2017.Meanwhile,new snail breeding areas were formed mainly within provinces downstream the TGD due to spread of snails,indicated that the oncomelanid snail would be difficult to completely eliminate.We suggest that the national schistosomiasis integrated control strategy,including mollusciding and environmental modification,will need to be enhanced significantly going forward to achieve a greater reduaion in snail burden and ultimately to achieve elimination.Si-Min Dai Jeffrey Edwards Zhou Guan Shan Lv Shi-Zhu Li Li-Juan Zhang Jun Feng Ning Feng Xiao-Nong Zhou Jing Xu 2019Infectious Diseases of Poverty2019,8,3:4
9Accelerated evolution of an Lhx2 enhancer shapes mammalian social hierarchies显示文摘Social hierarchies emerged during evolution,and social rank influences behavior and health of individuals.However,the evolutionary mechanisms of social hierarchy are still unknown in amniotes.Here we developed a new method and performed a genome-wide screening for identifying regions with accelerated evolution in the ancestral lineage of placental mammals,where mammalian social hierarchies might have initially evolved.Then functional analyses were conducted for the most accelerated region designated as placental-accelerated sequence 1(PAS1,P=3.15 × 10^-18).Multiple pieces of evidence show that PAS1 is an enhancer of the transcription factor gene Lhx2 involved in brain development.PAS1s isolated from various amniotes showed different c/s-regulatory activity in vitro,and affected the expression of Lhx2 differently in the nervous system of mouse embryos.PAS1 knock-out mice lack social stratification.PAS1 knock-in mouse models demonstrate that PAS1s determine the social dominance and subordinate of adult mice,and that social ranks could even be turned over by mutated PAS1.All homozygous mutant mice had normal huddled sleeping behavior,motor coordination and strength.Therefore,PAS1-Lhx2 modulates social hierarchies and is essential for establishing social stratification in amniotes,and positive Darwinian selection on PAS1 plays pivotal roles in the occurrence of mammalian social hierarchies.Yuting Wang Guangyi Dai Zhili Gu Guopeng Liu Ke Tang Yi-Hsuan Pan Yujie Chen Xin Lin Nan Wu Haoshan Chen Su Feng Shou Qiu Hongduo Sun Qian Li Chuan Xu Yanan Mao Yong Edward Zhang Philipp Khaitovich Yan-Ling Wang Qunxiu Liu Jing-Dong Jackie Han Zhen Shao Gang Wei Chun Xu Naihe Jing Haipeng Li 2020Cell Research2020,30,5:4
10The allocation of risk in PPP/PFI construction projects in the UK显示文摘Li Bing A. Akintoye P.J. Edwards C. Hardcastle 2004International Journal of Project Management2004,,1:3
11Inhibition of CDK9 by voruciclib synergistically enhances cell death induced by the Bcl-2 selective inhibitor venetoclax in preclinical models of acute myeloid leukemia显示文摘Venetoclax,an FDA-approved Bcl-2 selective inhibitor for the treatment of chronic lymphocytic leukemia and acute myeloid leukemia(AML),is tolerated well in elderly patients with AML and has good overall response rates;however,resistance remains a concern.In this study,we show that targeting CDK9 with voruciclib in combination with venetoclax results in synergistic antileukemic activity against AML cell lines and primary patient samples.CDK9 inhibition enhances venetoclax activity through downregulation of Mcl-1 and c-Myc.However,downregulation of Mcl-1 is transient,which necessitates an intermittent treatment schedule to allow for repeated downregulation of Mcl-1.Accordingly,an every other day schedule of the CDK9 inhibitor is effective in vitro and in vivo in enhancing the efficacy of venetoclax.Our preclinical data provide a rationale for an intermittent drug administration schedule for the clinical evaluation of the combination treatment for AML.Daniel A.Luedtke Yongwei Su Jun Ma Xinyu Li Steven ABuck Holly Edwards Lisa Polin Juiwanna Kushner Sijana HDzinic Kathryn White Hai Lin Jeffrey WTaub Yubin Ge 2020Signal Transduction and Targeted Therapy2020,5,1:3
12The structural basis of the dominant negative phenotype of the Gαi1β1Y2 G203A/A326S heterotrimer显示文摘Ping LIU Ming-zhu JIA X Edward ZHOU Parker W DE WAAL Bradley M DICKSON Bo LlU Li HOU Yan-ting YIN Ya n-yong KANG Yi SHI Karsten MELCHER H Eric XU Yi JIANG 2016Acta Pharmacologica Sinica2016,37,9:3
13Modeling the comfort effects of short-wave solar radiation indoors显示文摘Edward Arens Tyler Hoyt Xin Zhou Li Huang Hui Zhang Stefano Schiavon 侯恩哲 2015建筑节能2015,43,6:3
14Dietary supplementation of Bacillus subtilis influenced intestinal health of weaned pigs experimentally infected with a pathogenic E. coli显示文摘Background: There is growing evidence to support the beneficial effects of supplementing direct-fed microbials(DFM) on performance, health status, and immune responses of weaned pigs. Therefore, the objective of this study was to investigate dietary supplementation of Bacillus subtilis(DSM 25841) on growth performance, diarrhea, gut permeability and immunity of weaned pigs experimentally infected with a pathogenic F-18 Escherichia coli(E. coli).Results: The F18 E. coli infection reduced(P < 0.05) growth performance and intestinal villi height, whereas increased(P < 0.05) diarrhea and transcellular and paracellular permeability in the jejunum compared with non-challenged control. Supplementation of Bacillus subtilis linearly enhanced average daily gain of E. coli infected pigs from d 0 to 5 post-inoculation(PI)(P < 0.05) and d 0 to 11 PI(P = 0.058). Supplementation of high dose of Bacillus subtilis reduced(P < 0.05) both transcellular and paracellular permeability on d 5 and d11 PI compared with the E. coli infected pigs fed with control diet. E. coli infection up-regulated(P < 0.05)the m RNA expression of SLC5 A10(soluble carrier family 5 member 10) and MUC2(mucin 2) on d 5 PI, but down-regulated(P < 0.05) expression of SLC5 A10, MUC2, and CLDN1 on d 11 PI in jejunal mucosa when pigs were fed with the control diet. Supplementation of Bacillus subtilis linearly up-regulated(P < 0.05) the m RNA expression of CFTR and ZO1 on d 5 PI and SLC5 A10 and MUC2 on d 11 PI in jejunal mucosa of E. coli infected pigs. In addition, E. coli infection increased(P < 0.05) the m RNA expression of several immune genes(IL1 A, IL1 B, and IL7 on d 5 PI, and IL1 B, IL6, IL7, and TNF on d 11 PI) in the ileal mucosa of weaned pigs. Inclusion of Bacillus subtilis to control diet linearly down-regulated gene expression of IL1 A on d 5 PI(P = 0.07) and IL6 on d 11 PI(P < 0.05) in ileal mucosa of E. coli infected pigs.Conclusions: Supplementation of Bacillus subtilis(DSM 25841) enhanced growth rate and improved gut barrier function of weaned pigs experimentally infected with a pathogenic E. coli.Kwangwook Kim Yijie He Xia Xiong Amy Ehrlich Xunde Li Helen Raybould Edward R.Atwill Elizabeth A.Maga Jens JΦrgensen Yanhong Liu 2019Journal of Animal Science and Biotechnology2019,10,4:3
15The transport of chemical components in homogeneous snowpacks on Urumqi Glacier No.1, eastern Tianshan Mountains, Central Asia显示文摘Chemical records from alpine ice cores provide an invaluable source of paleoclimatic and environmental information. Not only the atmospheric chemical composition but also depositional and post-depositional processes are recorded within snow/firn strata. To interpret the environmental and climatic significance of ice core records, we studied the variability of glacier snowpack chemistry by investigating homogeneous snowpacks from October 2003 to September 2006 on Urumqi Glacier No. 1 in eastern Tianshan Mountains, Central Asia. Principle Component Analysis of ionic species in dry and wet seasons revealed the impact of meltwater in redistributing ions in the snowpacks. The 1st, 2nd and 3rd principle components for dry seasons differ significantly, reflecting complex associations between depositional or/and post-depositional processes. The variability trend of ionic concentrations during the wet seasons was found to fit a Gauss Function with significant parameters. The elution factor revealed that more than half of ions are leached out during the wet seasons. Differences with respect to ion snowpack mobility were found. Of the ions studied SO42– was the most mobile and Mg2+ the least mobile. A threshold relationship between air temperatures and the elution process was investigated over the study period. The results indicate that the strong melt /ablation processes and iconic redistribution occur at a threshold air temperature of 0°C. The study found that surface melt on the snowpacks is the main factor causing the alteration of the snowpack chemistry. Rainfall also has an impact on the chemistry but plays a less significant role than the surface melt.YOU Xiaoni LI Zhongqin Ross EDWARDS WANG Lixia 2015Journal of Arid Land2015,7,5:3
16Regulation of drug metabolism and toxicity by multiple factors of genetics,epigenetics,lncRNAs,gut microbiota,and diseases:a meeting report of the 21st International Symposium on Microsomes and Drug Oxidations(MDO)显示文摘Variations in drug metabolism may alter drug efficacy and cause toxicity;better understanding of the mechanisms and risks shall help to practice precision medicine.At the 21 st International Symposium on Microsomes and Drug Oxidations held in Davis,California,USA,in October 2-6,2016,a number of speakers reported some new findings and ongoing studies on the regulation mechanisms behind variable drug metabolism and toxicity,and discussed potential implications to personalized medications.A considerably insightful overview was provided on genetic and epigenetic regulation of gene expression involved in drug absorption,distribution,metabolism,and excretion(ADME) and drug response.Altered drug metabolism and disposition as well as molecular mechanisms among diseased and special populations were presented.In addition,the roles of gut microbiota in drug metabolism and toxicology as well as long non-coding RNAs in liver functions and diseases were discussed.These findings may offer new insights into improved understanding of ADME regulatory mechanisms and advance drug metabolism research.Ai-Ming Yu Magnus Ingelman-Sundberg Nathan J.Cherrington Lauren M.Aleksunes Ulrich M.Zanger Wen Xie Hyunyoung Jeong Edward M.Morgan Peter J.Turnbaugh Curtis D.Klaassen Aadra P.Bhatt Matthew R.Redinbo Pengying Hao David J.Waxman Li Wang Xiao-bo Zhong 2017Acta Pharmaceutica Sinica B2017,7,2:3
17In vivo neuronal and astrocytic activation in somatosensory cortex by acupuncture stimuli显示文摘Acupuncture is a medical treatment that has been widely pra cticed in China for over 3000 years,yet the neural mechanisms of acupuncture are not fully understood.We hypothesized that neurons and astrocytes act independently and synergistically under acupuncture stimulation.To investigate this,we used two-photon in vivo calcium reco rding to observe the effects of acupuncture stimulation at ST36(Zusanli)in mice.Acupuncture stimulation in peripheral acupoints potentiated calcium signals of pyramidal neurons and astrocytes in the somatosensory cortex and resulted in late-onset calcium transients in astrocytes.Chemogenetic inhibition of neurons augmented the astrocytic activity.These findings suggest that acupuncture activates neuronal and astrocytic activity in the somatosensory co rtex and provide evidence for the involvement of both neurons and astrocytes in acupuncture treatment.Xiao-Yue Chang Kai Chen Tong Cheng Pui To Lai Li Zhang Kwok-Fai So Edward S.Yang 2022Neural Regeneration Research2022,17,11:2
18Epigenetic considerations and the clinical reevaluation of the overlap syndrome between primary biliary cirrhosis and autoimmune hepatitis显示文摘Qixia Wang Carlo Selmi Xinmin Zhou Dekai Qiu Zenshan Li Qi Miao Xiaoyu Chen Jianhong Wang Edward L. Krawitt M. Eric Gershwin Ying Han Xiong Ma 2012Journal of Autoimmunity2012,,:2
19Enabling stable sodium metal cycling by sodiophilic interphase in a polymer electrolyte system显示文摘Enabling highly reversible sodium(Na) metal anodes in a polymer electrolyte(PE) system is critical for realizing next-generation batteries with lower cost,higher energy,and improved safety.However,the uneven Na deposition and high Na/PE interphase resistance lead to poor reversibility and short cycle life of Na metal anodes.To tackle these problems,here a variety of metal nanoparticles(M-np,M=Al,Sn,In or Au) are deposited onto copper(Cu) foils to synthesize binder-free M-np@Cu substrates for Na plating/stripping.Notably,the Au-np@Cu substrate provides abundant preferential nucleation/growth sites,decreasing Na nucleation barrier and thus promoting uniform Na deposition.Accordingly,stable Na metal anodes are achieved with high reversible capacities,long cycle life,and high usage of Na.With the Au-np@Cu/Na anode and PE,the full cell using a commercial bulk sulfur cathode exhibits a reversible capacity of>400 mAh g^(-1) with near-100% Coulombic efficiency over 200 cycles.Xiaofei Hu Edward Matios Yiwen Zhang Chuanlong Wang Jianmin Luo Weiyang Li 2021Journal of Energy Chemistry2021,30,12:2
20The allocation of risk in PPP/PFI construction projects in the UK显示文摘Li Bing A. Akintoye P.J. Edwards C. Hardcastle 2004International Journal of Project Management2004,,1:2
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