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| 1 | A GPCR/secretase complex regulates β- and γ-secretase specificity for Aβ production and contributes to AD pathogenesis显示文摘尾 - 地点的 Dysregulation 劈开应用软件的酶(BACE ) 或纬 - secretase 导致异常生产淀粉 -- 尾肽(尾) 并且贡献 Alzheimer 的疾病(广告) 的病原学。自从这些 secretases,调停众多的蛋白质的解朊的处理,因为不可避免的不希望得到的副作用,小成功都没被获得由 secretase 禁止者对待广告。因此,解开具有重要性这些 secretases 的规章的机制。这里,我们证明那未 - opioid 受体(欧洲粪金龟子) 支持由 BACE1 和纬 - 处理尾先锋蛋白质(应用软件) secretase,然而并非槽口, N-cadherin 或 APLP 的。进一步的调查表明那只欧洲粪金龟子与 BACE1 和纬 - secretase 形成建筑群,并且欧洲粪金龟子的激活调停为应用软件 endoproteolysis secretases/receptor 建筑群排序的 co-endocytic。受体的机能障碍延迟 BACE1 和纬 - secretase 并且这样的 endocytosis 尾的生产。一致地,击倒或欧洲粪金龟子的 antagonization 减少 secretase 活动并且改善一个尾病理和 A 尾 - 依赖者行为的赤字,但是不影响在广告模型老鼠处理槽口, N-cadherin 或 APLP。我们的学习不仅揭开为为尾生产调整 secretase 的特性而且建议形成的那干预或 GPCR/secretase 建筑群的 trafficking 的 DOR/secretase 建筑群的形成的分子的机制能对广告导致新策略,潜在地与更少副作用。 | Lin Teng Jian Zhao Feifei Wang Lan Ma Gang Pei | 2010 | Cell Research2010，20，2： | 14 |
| 2 | Allele-defined genome reveals biallelic differentiation during cassava evolution显示文摘Dear Editor,Generation of heterozygous genomes by hybridization between or within species can help maintain plant diversity and serve as a potential source of new species(Baek et al.,2018).Moreover,genomic heterozygosity is associated with genomic coadaptation,developmental stability,and heterosis.Accurate definition of alleles in haplotypes is necessary to precisely characterize allelic variation controlling agriculturally important traits(Shi et al.,2019).Currently,most released genomes have mosaic assembly of haplotypes due to random selection or collapse of alleles during genome assembly(Shi et al.,2019),which masked allelic variation and functional differentiation of divergent alleles in heterozygous species. | Wei Hu Changmian Ji Haitao shi Zhe Liang Zehong Ding Jianqiu Ye Wenjun Ou Gang Zhou Weiwei Tie Yan Yan Jinghao Yang Xiaoying Yang Yunxie Wei Zhiqiang Jin Jianghui Xie Ming Peng Wenquan Wang Anping Guo Biyu Xu Jianchun Guo Songbi Chen Liming Ma Mingcheng Wang Yang Zhou Xiaolong Li Ruoxi Li Siyi Guo Xinhui Xiao Zhongqing Wan Feifei An Jie Zhang Qingyun Leng Yin Li Ray Ming Kaimian Li | 2021 | Molecular Plant2021，14，6： | 8 |
| 3 | Carbon and nitrogen isotopes analysis and sources of organic matter in surface sediments from the Sanggou Bay and its adjacent areas, China显示文摘Naturally existing stable carbon and nitrogen isotopes are important in the study of sedimentary organic matter sources. To identify the sources of sedimentary organic matter in Sanggou Bay and its adjacent areas, which is characterized by high-density shellfish and seaweed aquaculture, the grain size, organic carbon(OC), total nitrogen(TN), carbon and nitrogen isotopic composition(δ13C and δ15N) of organic matter in the surface sediment were determined. The results showed that, in August, sedimentary OC and TN ranged from 0.17% to 0.76% and 0.04% to 0.14%, respectively. In November, OC and TN ranged from 0.23% to 0.87% and 0.05% to 0.14%, respectively. There was a significant positive correlation between OC and TN(R=0.98, P<0.0001), indicating that OC and TN were homologous. In August, the δ13C and δ15N of organic matter varied from-23.06‰ to-21.59‰ and 5.10‰ to 6.31‰, respectively. In November, δ13C and δ15N ranged from-22.87‰ to-21.34‰ and 5.13‰ to 7.31‰, respectively. This study found that the major sources of sedimentary organic matter were marine shellfish biodeposition, seaweed farming, and soil organic matter. Using a three-end-member mixed model, we estimated that the dominant source of sedimentary organic matter was shellfish biodeposition, with an average contribution rate of 65.53% in August and 43.00% in November. Thus, shellfish farming had a significant influence on the coastal carbon cycle. | XIA Bin CUI Yi CHEN Bijuan CUI Zhengguo QU Keming MA Feifei | 2014 | Acta Oceanologica Sinica2014，33，12： | 7 |
| 4 | Crystal structures of D-psicose 3-epimerase from Clostridium cellulolyticum H10 and its complex with ketohexose sugars显示文摘D-Psicose 3-epimerase(DPEase)is demonstrated to be useful in the bioproduction of D-psicose,a rare hexose sugar,from D-fructose,found plenty in nature.Clostridium cellulolyticum H10 has recently been identified as a DPEase that can epimerize D-fructose to yield D-psicose with a much higher conversion rate when compared with the conventionally used DTEase.In this study,the crystal structure of the C.cellulolyticum DPEase was determined.The enzyme assembles into a tetramer and each subunit shows a(β/α)8 TIM barrel fold with a Mn2+metal ion in the active site.Additional crystal structures of the enzyme in complex with substrates/products(D-psicose,D-fructose,D-tagatose and D-sorbose)were also determined.From the complex structures of C.cellulolyticum DPEase with D-psicose and D-fructose,the enzyme has much more interactions with D-psicose than D-fructose by forming more hydrogen bonds between the substrate and the active site residues.Accordingly,based on these ketohexosebound complex structures,a C3-O3 proton-exchange mechanism for the conversion between D-psicose and D-fructose is proposed here.These results provide a clear idea for the deprotonation/protonation roles of E150 and E244 in catalysis. | Hsiu-Chien Chan Yueming Zhu Yumei Hu Tzu-Ping Ko Chun-Hsiang Huang Feifei Ren Chun-Chi Chen Yanhe Ma Rey-Ting Guo Yuanxia Sun | 2012 | Protein & Cell2012，3，2： | 6 |
| 5 | Effects of Cu^(2+)and humic acids on degradation and fate of TBBPA in pure culture of Pseudomonas sp.strain CDT显示文摘Soil contamination with tetrabromobisphenol A(TBBPA) has caused great concerns;however, the presence of heavy metals and soil organic matter on the biodegradation of TBBPA is still unclear. We isolated Pseudomonas sp. strain CDT, a TBBPA-degrading bacterium, from activated sludge and incubated it with ^(14)C-labeled TBBPA for 87 days in the absence and presence of Cu^(2+)and humic acids(HA). TBBPA was degraded to organic-solvent extractable(59.4% ± 2.2%) and non-extractable(25.1% ± 1.3%) metabolites,mineralized to CO_2(4.8% ± 0.8%), and assimilated into cells(10.6% ± 0.9%) at the end of incubation. When Cu^(2+)was present, the transformation of extractable metabolites into non-extractable metabolites and mineralization were inhibited, possibly due to the toxicity of Cu^(2+)to cells. HA significantly inhibited both dissipation and mineralization of TBBPA and altered the fate of TBBPA in the culture by formation of HA-bound residues that amounted to 22.1% ± 3.7% of the transformed TBBPA. The inhibition from HA was attributed to adsorption of TBBPA and formation of bound residues with HA via reaction of reactive metabolites with HA molecules, which decreased bioavailability of TBBPA and metabolites in the culture. When Cu^(2+)and HA were both present, Cu^(2+)significantly promoted the HA inhibition on TBBPA dissipation but not on metabolite degradation. The results provide insights into individual and interactive effects of Cu^(2+)and soil organic matter on the biotransformation of TBBPA and indicate that soil organic matter plays an essential role in determining the fate of organic pollutants in soil and mitigating heavy metal toxicity. | Yini Ma Yingying Zhao Yongfeng Wang Xiangzhen Li Feifei Sun Phillippe Francois-Xavier Corvini Rong Ji | 2017 | Journal of Environmental Sciences2017，29，12： | 5 |
| 6 | SARS-CoV-2 infection aggravates chronic comorbidities of cardiovascular diseases and diabetes in mice显示文摘Background:Cardiovascular diseases(CVDs)and diabetes mellitus(DM)are top two chronic comorbidities that increase the severity and mortality of COVID-19.However,how SARS-CoV-2 alters the progression of chronic diseases remain unclear.Methods:We used adenovirus to deliver h-ACE2 to lung to enable SARS-CoV-2 infection in mice.SARS-CoV-2’s impacts on pathogenesis of chronic diseases were studied through histopathological,virologic and molecular biology analysis.Results:Pre-existing CVDs resulted in viral invasion,ROS elevation and activation of apoptosis pathways contribute myocardial injury during SARS-CoV-2 infection.Viral infection increased fasting blood glucose and reduced insulin response in DM model.Bone mineral density decreased shortly after infection,which associated with impaired PI3K/AKT/mTOR signaling.Conclusion:We established mouse models mimicked the complex pathological symptoms of COVID-19 patients with chronic diseases.Pre-existing diseases could impair the inflammatory responses to SARS-CoV-2 infection,which further aggravated the pre-existing diseases.This work provided valuable information to better understand the interplay between the primary diseases and SARS-CoV-2 infection. | Yuanwu Ma Dan Lu Linlin Bao Yajin Qu Jiangning Liu Xiaolong Qi Lei Yu Xu Zhang Feifei Qi Qi Lv Yunpeng Liu Xudong Shi Caixian Sun Jing Li Jie Wang Yunlin Han Kai Gao Wei Dong Ning Liu Shan Gao Jing Xue Qiang Wei Sidan Pan Hong Gao Lianfeng Zhang Chuan Qin | 2021 | Animal Models and Experimental Medicine2021，4，1： | 3 |
| 7 | Global Uranium Resources in Sedimentary Basins and the Characteristics of Oil, Gas, Coal and Uranium Coexisting in one Basin显示文摘1 Sedimentary-type and Sandstone-type Uranium Resources Over the past three decades,with the success in in-situ leach(ISL)mining of sandstone-type uranium deposits(SUD),the quantity,resources and production | WANG Feifei LIU Chiyang NIU Haiqing DENG Yu MA Huanhuan WANG Wenqing | 2017 | Acta Geologica Sinica(English Edition)2017，91，S1： | 3 |
| 8 | Knock in of a hexanucleotide repeat expansion in the C9orf72 gene induces ALS in rats显示文摘Background:The GGGGCC(G4C2)repeat expansion in the human open reading frame 72 on chromosome 9,C9orf72,is the most common cause of amyotrophic lateral sclerosis(ALS).Studies in transgenic mouse models have linked the pathogenic mechanism of G4C2 repeat expansion to RNA foci or the accumulation of unnatural dipeptide repeats in neurons.However,only one of the existing transgenic mouse lines developed typical ALS.Methods:C9orf72 knockin rats were generated by knockin of 80 G4C2 repeats with human flanking fragments within exon1a and exon1b at the rat C9orf72 locus.Protein expression was detected by western blot.Motor coordination and grip force were measured using a Rotarod test and a grip strength test.Neurodegeneration was assessed by Nissl staining with cresyl violet.Results:C9orf72 haploinsufficiency reduced C9orf72 protein expression 40%in the cerebrum,cerebellum and spinal cords from knockin rats(P<.05).The knockin(KI)rats developed motor deficits from 4 months of age.Their falling latencies and grip force were decreased by 67%(P<.01)and 44%(P<.01),respectively,at 12 months of age compared to wild-type(WT)mice.The knockin of the hexanucleotide repeat expansion(HRE)caused a 47%loss of motor neurons in the spinal cord(P<.001)and 25%(5/20)of female KI rats developed hind limb paralysis at 13 to 24 months.Conclusion:Motor defects in KI rats may result from neurotoxicity caused by HRE and the resulting reduction in C9orf72 protein due to haploinsufficiency.These KI rats could be a useful model for investigating the contributions of loss-of-function to neurotoxicity in C9orf72-related ALS. | Wei Dong Li Zhang Caixian Sun Xiang Gao Feifei Guan Jing Li Wei Chen Yuanwu Ma Lianfeng Zhang | 2020 | Animal Models and Experimental Medicine2020，3，3： | 2 |
| 9 | Novel rat model of multiple mitochondrial dysfunction syndromes(MMDS)complicated with cardiomyopathy显示文摘Background:Multiple mitochondrial dysfunction syndromes(MMDS)presents as complex mitochondrial damage,thus impairing a variety of metabolic pathways.Heart dysplasia has been reported in MMDS patients;however,the specific clinical symptoms and pathogenesis remain unclear.More urgently,there is a lack of an animal model to aid research.Therefore,we selected a reported MMDS causal gene,Isca1,and established an animal model of MMDS complicated with cardiac dysplasia.Methods:The myocardium-specific Isca1 knockout heterozygote(Isca1 HET)rat was obtained by crossing the Isca1 conditional knockout(Isca1 cKO)rat with theαmyosin heavy chain Cre(α-MHC-Cre)rat.Cardiac development characteristics were determined by ECG,blood pressure measurement,echocardiography and histopatho-logical analysis.The responsiveness to pathological stimuli were observed through adriamycin treatment.Mitochondria and metabolism disorder were determined by activity analysis of mitochondrial respiratory chain complex and ATP production in myocardium.Results:ISCA1 expression in myocardium exhibited a semizygous effect.Isca1 HET rats exhibited dilated cardiomyopathy characteristics,including thin-walled ventri-cles,larger chambers,cardiac dysfunction and myocardium fibrosis.Downregulated ISCA1 led to deteriorating cardiac pathological processes at the global and organiza-tional levels.Meanwhile,HET rats exhibited typical MMDS characteristics,including damaged mitochondrial morphology and enzyme activity for mitochondrial respira-tory chain complexesⅠ,ⅡandⅣ,and impaired ATP production.Conclusion:We have established a rat model of MMDS complicated with cardiomyopathy,it can also be used as model of myocardial energy metabolism dysfunction and mitochondrial cardiomyopathy.This model can be applied to the study of the mechanism of energy metabolism in cardiovascular diseases,as well as research and development of drugs. | Yahao Ling Jiaxin Ma Xiaolong Qi Xu Zhang Qi Kong Feifei Guan Wei Dong Wei Chen Shan Gao Xiang Gao Shuo Pan Yuanwu Ma Dan Lu Lianfeng Zhang | 2021 | Animal Models and Experimental Medicine2021，4，4： | 2 |
| 10 | Psoralen inhibits hepatitis B viral replication by down-regulating the host transcriptional machinery of viral promoters显示文摘The hepatitis B virus(HBV) is a global public health challenge due to its highly contagious nature. It is estimated that almost 300 million people live with chronic HBV infection annually. Although nucleoside analogs markedly reduce the risk of liver disease progression, the analogs do not fully eradicate the virus. As such, new treatment options and drugs are urgently needed. Psoralen is a nourishing monomer of Chinese herb and is known to inhibit virus replication and inactivate viruses. In this study, we evaluated the potential of psoralen as an anti-HBV agent.Quantitative PCR and Southern blot analysis revealed that psoralen inhibited HBV replication in Hep G2.2.15 cells in a concentration-dependent manner. Moreover, psoralen was also active against the 3TC/ETV-dual-resistant HBV mutant. Further investigations revealed that psoralen suppressed both HBV RNA transcription and core protein expression. The transcription factor FOXO1, a known target for PGC1α co-activation, binds to HBV precore/core promoter enhancer II region and activates HBV RNA transcription. Co-immunoprecipitation showed that psoralen suppressed the expression of FOXO1, thereby decreasing the binding of FOXO1 co-activator PGC1αto the HBV promoter. Overall, our results demonstrate that psoralen suppresses HBV RNA transcription by downregulating the expression of FOXO1 resulting in a reduction of HBV replication. | Xinna Ma Heng Li Ying Gong Feifei Liu Xiankun Tong Fenghua Zhu Xiaoqian Yang Li Yang Jianping Zuo | 2022 | Virologica Sinica2022，37，2： | 2 |
| 11 | Data-Driven Discovery in Mineralogy: Recent Advances in Data Resources, Analysis, and Visualization显示文摘Large and growing data resources on the diversity, distribution, and properties of minerals are ushering in a new era of data-driven discovery in mineralogy. The most comprehensive international mineral database is the IMA database, which includes information on more than 5400 approved mineral species and their properties, and the mindat.org data source, which contains more than 1 million species/locality data on minerals found at more than 300 000 localities. Analysis and visualization of these data with diverse techniques—including chord diagrams, cluster diagrams, Klee diagrams, skyline diagrams, and varied methods of network analysis—are leading to a greater understanding of the co-evolving geosphere and biosphere. New data-driven approaches include mineral evolution, mineral ecology, and mineral network analysis—methods that collectively consider the distribution and diversity of minerals through space and time. These strategies are fostering a deeper understanding of mineral co-occurrences and, for the first time, facilitating predictions of mineral species that occur on Earth but have yet to be discovered and described. | Robert M. Hazen Robert T. Downs Ahmed Eleish Peter Fox Olivier C. Gagné Joshua J. Golden Edward S. Grew Daniel R. Hummer Grethe Hystad Sergey V. Krivovichev Congrui Li Chao Liu Xiaogang Ma Shaunna M. Morrison Feifei Pan Alexander J. Pires Anirudh Prabhu Jolyon Ralph Simone E. Runyon Hao Zhong | 2019 | Engineering2019，5，3： | 2 |
| 12 | MicroRNA expression profiles in conventional and micropropagated strawberry (Fragaria?×?ananassa Duch.) plants显示文摘 | He Li Zhihong Zhang Feifei Huang Linlin Chang Yue Ma | 2009 | Plant Cell Reports2009，，6： | 2 |
| 13 | Serum osteocalcin levels in relation to metabolic syndrome in Chinese postmenopausal women显示文摘 | Rong Yang Xiaojing Ma Xiaoping Pan Feifei Wang Yuqi Luo Chengchen Gu Yuqian Bao Weiping Jia | 2013 | Menopause: The Journal of The North American Menopause Society2013，，5： | 1 |
| 14 | A remote wireless system for water quality online monitoring in intensive fish culture显示文摘 | Xiuna Zhu Daoliang Li Dongxian He Jianqin Wang Daokun Ma Feifei Li | 2009 | Computers and Electronics in Agriculture2009，，： | 1 |
| 15 | Rapid reso-lution liquid chromatography(RRLC)analysis and studies on the stability of Shuanghuanglian preparations显示文摘 | Ma Yuanchun Wang Xiaoqiang Hou Feifei | 2011 | J Pharm Biomed Anal2011，54，： | 1 |
| 16 | Analysis to world-class university evaluation methods and results in 2010显示文摘 | Qiu junping Zhao rongying Ma feng Wang feifei | 2010 | Wuhan Daxue Xuebao2010，35，2： | 1 |
| 17 | Achieving exceptional activity and durability toward oxygen reduction based on a cobalt-free perovskite for solid oxide fuel cells显示文摘In response to the shortcomings of cobalt-rich cathodes, iron-based perovskite oxides appear as promising alternatives for solid oxide fuel cells (SOFCs). However, their inferior electrochemical performance at reduced temperatures (<700 ℃) becomes a major bottleneck for future progress. Here, a novel cobalt-free perovskite Ba_(0.75)Sr_(0.25)Fe_(0.875)Ga_(0.125)O_(3−δ) (BSFG) is developed as an efficient oxygen reduction electrode for SOFCs, featuring cubic-symmetry structure, large oxygen vacancy concentration and fast oxygen transport. Benefiting from these merits, cells incorporated with BSFG achieve exceptionally high electrochemical performance, as evidenced by a low polarization area-specific resistance of 0.074 Ω cm^(2) and a high peak power density of 1145 mW cm^(−2) at 600 ℃. Meanwhile, a robust short-term performance stability of BSFG cathode can be ascribed to the stable crystalline structure and favorable thermal expansion behavior. First-principles computations are also conducted to understanding the superior activity and durability toward oxygen reduction reaction. These pave the way for rationally developing highly active and robust cobalt-free perovskite-type cathode materials for reduced-temperature SOFCs. | Feifei Dong Zhenghui Gao Bingkai Zhang Lu Li Ziqi Kong Zilin Ma Meng Ni Zhan Lin | 2021 | Journal of Energy Chemistry2021，30，11： | 1 |
| 18 | Subcellular Localization of APX1 Protein in Arabidopsis thaliana显示文摘To predict the subcellular location of ascorbate peroxidase 1(APX1)protein in Arabidopsist haliana,aplasmid expressing APX1-enhance green fluorescent protein(EGFP)fusion protein was constructed,transformed into Agrobacteriumt umefaciens GV3101,and transiently expressed in tobacco leaves.The localization of APX1 protein in the cells was determined by detecting the distribution of the fusion protein in tobacco epidermal cells.The results showed APX1 protein was mainly distributed in the cytoplasm of the plant. | Feifei MA Mengzhao JIANG Jie YANG Xuemin ZHANG Zhenfeng HUANG Jie CAI Li JIANG | 2017 | Agricultural Biotechnology2017，6，2： | 1 |
| 19 | Finding orthogonal latin squares using finite model searching tools显示文摘An important class of problems in combinatorics is to find orthogonal latin squares with certain properties.Computer search is a promising approach for solving such problems.But generally its worstcase complexity is high.This paper describes how to use a general-purpose model searching program to find orthogonal latin squares.New techniques for problem representation and symmetry breaking are proposed to increase search efficiency. | MA FeiFei ZHANG Jian | 2013 | Science China(Information Sciences)2013，56，3： | 1 |
| 20 | Structure-guided manipulation of the regioselectivity of the cyclosporine A hydroxylase CYP-sb21 from Sebekia benihana显示文摘The cytochrome P450 enzyme CYP-sb21 from the rare actinomycete Sebekia benihana is capable of hydroxylating the immunosuppressive drug molecule cyclosporine A(CsA)primarily at the 4th N-methyl leucine(MeLeu4),giving rise toγ-hydroxy-N-methyl-L-Leu4-CsA(CsA-4-OH).This oxidative modification of CsA leads to dramatically reduced immunosuppressive activity while retaining the hair growth-promoting side-effect,thus demonstrating great application potential in both pharmaceutical and cosmetic industries.However,this P450 enzyme also hydroxylates CsA at the unwanted position of the 9th N-methyl leucine(MeLeu9),indicating that the regioselectivity needs to be improved for the development of CsA-4-OH into a commercial hair growth stimulator.Herein,we report the crystal structure of CYP-sb21 in its substrate-free form at 1.85Å.Together with sequence and 3D structure comparisons,Autodock-based substrate docking,molecular dynamics(MD)simulation,and site-directed mutagenesis,we identified a number of key residues including R294,E264,and M179 that can improve catalytic efficiency or change the regioselectivity of CYP-sb21 towards CsA,setting the stage for better enzymatic preparation of CsA-4-OH.This study also provides new insights into the substrate recognition and binding mechanism of P450 enzymes that accommodate bulky substrates. | Fengwei Li Li Ma Xingwang Zhang Jingfei Chen Feifei Qi Yinyue Huang Zepeng Qu Lishan Yao Wei Zhang Eung-Soo Kim Shengying Li | 2020 | Synthetic and Systems Biotechnology2020，5，3： | 1 |
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