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43篇 您的检索式:作者名="Mengyang Liu"
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1Use of catalytic wet air oxidation (CWAO) for pretreatment of high-salinity high-organic wastewater显示文摘Catalytic wet air oxidation(CWAO)coupled desalination technology provides a possibility for the effective and economic degradation of high salinity and high organic wastewater.Chloride widely occurs in natural and wastewaters,and its high content jeopardizes the efficacy of Advanced oxidation process(AOPs).Thus,a novel chlorine ion resistant catalyst Bsite Ru doped LaFe_(1-x)Ru_(x)O_(3-)δin CWAO treatment of chlorine ion wastewater was examined.Especially,LaFe_(0.85)Ru_(0.15)O_(3-δ)was 45.5% better than that of the 6%RuO_(2)@TiO_(2)(commercial carrier)on total organic carbon(TOC)removal.Also,doped catalysts LaFe_(1-x)Ru_(x)O_(3-)δshowed better activity than supported catalysts RuO_(2)@LaFeO_(3) and RuO_(2)@TiO_(2) with the same Ru content.Moreover,LaFe_(0.85)Ru_(0.15)O_(3-)δhas novel chlorine ion resistance no matter the concentration of Cl^(−) and no Ru dissolves after the reaction.X-ray diffraction(XRD)refinement,X-ray photoelectron spectroscopy(XPS),transmission electron microscope(TEM),and X-ray absorption fine structure(XAFS)measurements verified the structure of LaFe_(0.85)Ru_(0.15)O_(3-)δ.Kinetic data and density functional theory(DFT)proved that Fe is the site of acetic acid oxidation and adsorption of chloride ions.The existence of Fe in LaFe_(0.85)Ru_(0.15)O_(3-)δcould adsorb chlorine ion(catalytic activity inhibitor),which can protect the Ru site and other active oxygen species to exert catalytic activity.This work is essential for the development of chloride-resistant catalyst in CWAO.Wenjing Sun Hongxia Lv Lei Ma Xiangdong Tan Chengyu Jin Huiling Wu Lili Chen Mengyang Liu Huangzhao Wei Chenglin Sun 2022Journal of Environmental Sciences2022,34,10:4
2Reversible N6-methyladenosine of RNA:The regulatory mechanisms on gene expression and implications in physiology and pathology显示文摘N6-methyladenosine(m6A)is the most abundant inner RNA modification in eukaryotes.Due to the development of RNA sequencing technology,the distribution pattern of m6A in the transcriptome has been uncovered.Dynamically,the reversible N6-methylation is mediated by two types of proteins,which are classified as“writers”and“erasers”.Under the association of specific co-factors,writers show spatiotemporal N6-methyltransferase activity.Mechanically,m6A can be recognized by“reader”proteins or can directly modify RNA conformation,and it widely affects gene expression by mediating RNA stability,translation,splicing and export.m6A is involved in a series of physiology processes.Dysregulation of m6A is gradually defined as the pathogenesis of some diseases,e.g.,cancer and cardiovascular disease.Therefore,a good understanding of m6A is essential for molecular biology and pathology research.In this article we systemically present an overview of the functions and mechanisms of identified m6A regulators.The discovered biological and pathological processes affected by m6A are also summarized.We hope that readers with related research interests benefit from our review.Xinyu Fang Mengyang Li Tao Yu Gaoli Liu Jianxun Wang 2020Genes & Diseases2020,7,4:4
3Comparative transcriptome analysis reveals defense responses against soft rot in Chinese cabbage显示文摘Pectobacterium carotovorum ssp.carotovorum(Pcc)is a necrotrophic bacterial species that causes soft rot disease in Chinese cabbage.In this study,plants harboring the resistant mutant sr gene,which confers resistance against Pcc,were screened from an 800 M2 population mutated by ethyl methane sulfonate(EMS)and scored in vitro and in vivo for lesion size.The transcript profiles showed~512 differentially expressed genes(DEGs)between sr and WT plants occurring between 6 and 12 h postinoculation(hpi),which corresponded to the important defense regulation period(resistance)to Pcc in Chinese cabbage.The downstream defense genes(CPK,CML,RBOH MPK3,and MPK4)of pathogen pattern-triggered immunity(PTI)were strongly activated during infection at 12 hpi in resistant mutant sr;PTI appears to be central to plant defense against Pcc via recognition by three putative pattern recognition receptors(PRRs;BrLYM1-BrCERK1,BrBKK1/SERK4-PEPR1,BrWAKs).Pcc triggered the upregulation of the jasmonic acid(JA)and ethylene(ET)biosynthesis genes in mutant sr,but auxins and other hormones may have affected some negative signals.Endogenous hormones(auxins,JAs,and SA),as well as exogenous auxins(MEJA and BTH),were also verified as functioning in the immune system.Concurrently,the expression of glucosinolate and lignin biosynthesis genes was increased at 12 hpi in resistant mutant sr,and the accumulation of glucosinolate and lignin also indicated that these genes have a functional defensive role against Pcc.Our study provides valuable information and elucidates the resistance mechanism of Chinese cabbage against Pcc infection.Mengyang Liu Fang Wu Shan Wang Yin Lu Xueping Chen Yanhua Wang Aixia Gu Jianjun Zhao Shuxing Shen 2019Horticulture Research2019,6,1:2
4Effects of complement inhibition on the ABC phenomenon in rats显示文摘Researchers reported that intravenously injected PEGylated colloidal drug carriers lose their long-circulating characteristic and accumulated extensively in liver when they are administrated twice in the same animal with certain intervals. This phenomenon was referred to as the 'accelerated blood clearance(ABC) phenomenon'. Some former studies had found that complement-mediated phagocytosis, activated by antigen–antibody complex, was responsible for inducing the phenomenon. According to the theory, we have used cobra venom factor to deplete complement in vivo and to investigate the effect of complement inhibition on the ABC phenomenon. Rats were administered by injection of cobra venom factor solution to build up the model of complement exhaustion/inhibition, and the effect of the inhibition of complement on ABC phenomenon was carried out. It seemed that inhibition of complement didn’t affect the pharmacokinetic of the first infection. By contrast, in rats of which complement had been depleted, the second dose of PEGylated nanoemulsions showed enhanced circulation time compared with normal rats in a complement inhibition-independent manner, but the ABC phenomenon was not completely eliminated. It indicated that complement inhibition could certainly weaken the accelerated clearance;meanwhile, there were other factors causing the ABC effect.These findings provide novel insights into the attenuating of ABC phenomenon and lay foundation for further study of immune mechanism.Lirong Wang Yuqing Su Xuling Wang Kaifan Liang Mengyang Liu Wenya Tang Yanzhi Song Xinrong Liu Yihui Deng 2017Asian Journal of Pharmaceutical Sciences2017,12,3:2
5Nanocrystalline CoCrFeNiMn high-entropy alloy with tunable ferromagnetic properties显示文摘A nanocrystalline CoCrFeNiMn high-entropy alloy(nc-HEA)with nano-multiphase structure was prepared by inert gas condensation(IGC)using a laser evaporation source.Encouragingly,the laser-IGC nc-HEA exhibits unexpected ferromagnetic behavior and the Curie temperature(T_(c))increased nearly 10 times compared to any CoCrFeNiMn HEAs prepared by various other methods.In addition,the saturation magnetization(M_s)and T_(c)of the laser-IGC nc-HEA can be controlled via heat treatment,which is resulting from the formation and structural evolution of magnetic nanophases during annealing.This work widens the design toolbox for high-performance nc-HEAs based upon laser-IGC technique.Junjie Wang Shangshu Wu Shu Fu Sinan Liu Zhiqiang Ren Mengyang Yan Shuangqin Chen Si Lan Horst Hahn Tao Feng 2021Journal of Materials Science & Technology2021,,18:2
6The development from hyperuricemia to gout:key mechanisms and natural products for treatment显示文摘Gout is a common of inflammatory arthritis and is caused by the deposition of monosodium urate(MSU)crystals as a result of hyperuricemia(HUA).Although HUA is considered to be the main risk factor for gout,only approximately 10%of the individuals with HUA will eventually experience a gout attack.In this review,we first briefly introduce the development of gout and then summarize several possible reasons for its development.Genetic factors play a more prominent role in gout than in other diseases;functional mutations related to urate control and innate immunity components have been found to be associated with gout.Here,we list some of the most prominent genes involved in the pathogenesis of gout.In joints with MSU deposition,mature macrophages may uptake MSU crystals without causing inflammation,and this helps to maintain joints in an asymptomatic state.As an auxiliary inflammation pathway,the ATP-P2X7R-NLRP3 axis may contribute to the amplification of MSU-induced inflammation to affect the development of gout.Finally,this review summarizes the research progress on natural products that can be used in the treatment of HUA and gout.Lin Liu Dan Wang Mengyang Liu Haiyang Yu Qian Chen Yuzheng Wu Ruixia Bao Yi Zhang Tao Wang 2022Acupuncture and Herbal Medicine2022,2,1:2
7Cobalt-doped Mn3O4 nanocrystals embedded in graphene nanosheets as a high-performance bifunctional oxygen electrocatalyst for rechargeable Zn–Air batteries显示文摘A non-noble-metal bifunctional catalyst with efficient and durable activity towards both the oxygen reduction reaction(ORR)and the oxygen evolution reaction(OER)is crucial to the development of rechargeable Zn-air batteries.Herein,a facile one-step hydrothermal method is reported for the synthesis of a high-performance bifunctional oxygen electrocatalyst,cobalt-doped Mn_(3)O_(4) nanocrystals supported on graphene nanosheets(Co–Mn_(3)O_(4)/G).Compare to pristine Mn_(3)O_(4),this Co–Mn_(3)O_(4)/G exhibits greatly enhanced electrocatalytic activity,delivering a halfwave potential of 0.866 V for the ORR and a low overpotential of 275 mV at 10 mA cm^(-2) for the OER.The zinc-air battery built with Co–Mn_(3)O_(4)/G shows a reduced charge–discharge voltage of 0.91 V at 10 mA cm^(-2),an power density of 115.24 mW cm^(-2) and excellent stability without any degradation after 945 cycles(315 h),outperforming the state-of-the-art Pt/C–Ir/C catalyst-based device.Mengyang Dong Xu Liu Lixue Jiang Zhengju Zhu Yajie Shu Shan Chen Yuhai Dou Porun Liu Huajie Yin Huijun Zhao 2020Green Energy & Environment2020,5,4:2
8Danhong Injection Inhibits the Development of Atherosclerosis in Both Apoe?/? and Ldlr?/? Mice显示文摘Yuanli Chen Mengyang Liu Tao Zhao Buchang Zhao Lifu Jia Yan Zhu Boli Zhang Xiumei Gao Guangliang Li Xiaoju Li Rong Xiang Jihong Han Yajun Duan 2014Journal of Cardiovascular Pharmacology2014,,5:1
9What makes turnips:anatomy,physiology and transcriptome during early stages of its hypocotyl-tuber development显示文摘Brassica species are characterized by their tremendous intraspecific diversity,exemplified by leafy vegetables,oilseeds,and crops with enlarged inflorescences or above ground storage organs.In contrast to potato tubers that are edible storage organs storing energy as starch and are the vegetative propagation modules,the storage organs of turnips,grown from true seed,are swollen hypocotyls with varying degrees of root and stem that mainly store glucose and fructose.To highlight their anatomical origin,we use the term“hypocotyl-tuber”for these turnip vegetative storage organs.We combined cytological,physiological,genetic and transcriptomic approaches,aiming to identify the initial stages,molecular pathways and regulatory genes for hypocotyl-tuber induction in turnips(B.rapa subsp.rapa).We first studied the development of the hypocotyl zone of turnip and Pak choi and found that 16 days after sowing(DAS)morphological changes occurred in the xylem which indicated the early tuberization stage.Tissue culture experiments showed a clear effect of auxin on hypocotyl-tuber growth.Differentially expressed genes between 1 and 6 weeks after sowing in turnip hypocotyls,located in genomic regions involved in tuber initiation and/or tuber growth defined by QTL and selective sweeps for tuber formation,were identified as candidate genes that were studied in more detail for their role in hypocotyl-tuber formation.This included a Bra-FLOR1 paralogue with increased expression 16 DAS,when the hypocotyl starts swelling,suggesting dual roles for duplicated flowering time genes in flowering and hypocotyltuber induction.Bra-CYP735A2 was identified for its possible role in tuber growth via trans-zeatin.Weigthed Coexpression Network Analysis(WGCNA)identified 59 modules of co-expressed genes.Bra-FLOR1 and Bra-CYP735A2 were grouped in a module that included several genes involved in carbohydrate transport and metabolism,cell-wall growth,auxin regulation and secondary metabolism that serve as starting points to illuminate the transcriptional regulation of hypocotyl-tuber formation and development.Mengyang Liu Niccolo Bassetti Stefan Petrasch Ningwen Zhang Johan Bucher Shuxing Shen Jianjun Zhao Guusje Bonnema 2019Horticulture Research2019,6,1:1
10NUA and ESD4 negatively regulate ABA signaling during seed germination显示文摘The phytohormone abscisic acid(ABA)plays important roles in plant growth,development and adaptative responses to abiotic stresses.SNF1-related protein kinase 2s(SnRK2)are key components that activate the ABA core signaling pathway.NUCLEAR PORE ANCHOR(NUA)is a component of the nuclear pore complex(NPC)that involves in deSU-MOylation through physically interacting with the EARLY IN SHORT DAYS 4(ESD4)SUMO protease.However,it is not clear how NUA functions with SnRK2 and ESD4 to regulate ABA signaling.In our study,we found that nua loss-of-function mutants exhibited pleiotropic ABA-hypersensitive phenotype.We also found that ABA-responsive genes remarkably up-regulated in nua by exogenous ABA.The nua snrk2.2 snrk2.3 triple mutant and nua abi5 double mutant partially rescued the ABA-hypersensitive phenotype of nua,thereby suggesting that NUA is epistatic to SnRK2s.Additionally,we observed that esd4-3 mutant was also ABA-hypersensitive.NUA and ESD4 were further demonstrated to physically interact with SnRK2s and negatively regulate ABA signaling by reducing SnRK2s stability.Taken together,our findings uncover a new regulatory mechanism that can modulate ABA signaling.Xiaona Cui Mengyang Lv Yuanyuan Cao Ziwen Li Yan Liu Zhenzhen Ren Hairong Zhang 2022Stress Biology2022,2,1:1
11Biofunctionalized composite scaffold to potentiate osteoconduction,angiogenesis,and favorable metabolic microenvironment for osteonecrosis therapy显示文摘Osteonecrosis is a common orthopedic disease in clinic,resulting in joint collapse if no appropriate treatment is performed in time.Core decompression is a general treatment modality for early osteonecrosis.However,effective bone regeneration in the necrotic area is still a significant challenge.This study developed a biofunctionalized composite scaffold(PLGA/nHA30VEGF)for osteonecrosis therapy through potentiation of osteoconduction,angiogenesis,and a favorable metabolic microenvironment.The composite scaffold had a porosity of 87.7%and compressive strength of 8.9 MPa.PLGA/nHA30VEGF had an average pore size of 227.6μm and a water contact angle of 56.5◦with a sustained release profile of vascular endothelial growth factor(VEGF).After the implantation of PLGA/nHA30VEGF,various osteogenic and angiogenic biomarkers were upregulated by 2-9 fold compared with no treatment.Additionally,the metabolomic and lipidomic profiling studies demonstrated that PLGA/nHA30VEGF effectively regulated the multiple metabolites and more than 20 inordinate metabolic pathways in osteonecrosis.The excellent performances reveal that the biofunctionalized composite scaffold provides an advanced adjuvant therapy modality for osteonecrosis.Tongtong Zhu Mengyang Jiang Mingran Zhang Liguo Cui Xiaoyu Yang Xukai Wang Guangyao Liu Jianxun Ding Xuesi Chen 2022Bioactive Materials2022,7,3:1
12Construction of high-efficiency CoS@Nb_(2)O_(5) heterojunctions accelerating charge transfer for boosting photocatalytic hydrogen evolution显示文摘The random movement and easy recombination of photoinduced charges lead to a low conversion efficiency for photocatalytic hydrogen evolution.The cocatalyst design is a promising route to address such problem through introducing an appropriate cocatalyst on the semiconductor photocatalysts to construct the high-efficiency heterojunctions.Herein,novel CoS/Nb_(2)O_(5) heterojunctions were constructed via in-situ loading CoS cocatalyst on the surface of Nb_(2)O_(5) nanosheets.Through the femtosecond-resolved transient absorption spectroscopy,the average lifetime of charge carriers for 10 wt% CoS/Nb_(2)O_(5)(159.6 ps)is drastically shortened by contrast with that of Nb_(2)O_(5)(5531.9 ps),strongly suggesting the rapid charge transfer from Nb_(2)O_(5) to CoS.The significantly improved charge-transfer capacity contributes to a high photocatalytic hydrogen evolution rate of 355µmol/h,up to 17.5 times compared with pristine Nb_(2)O_(5).This work would provide a new design platform in the construction of photocatalytic heterojunctions with high charge-transfer efficiency.Xin Ren Jianyou Shi Ruihuan Duan Jun Di Chao Xue Xiao Luo Qing Liu Mengyang Xia Bo Lin Wu Tang 2022Chinese Chemical Letters2022,33,10:1
13Chlorine substitution-dependent toxicities of polychlorinated biphenyls to the earthworm Eisenia fetida in soil显示文摘Polychlorinated biphenyls(PCBs)with different chlorine substitution patterns often coexist in e-waste-processing sites.However,the single and combined toxicity of PCBs to soil organisms and the influence of chlorine substitution patterns remain largely unknown.Herein,we evaluated the distinct in vivo toxicity of PCB28(a trichlorinated PCB),PCB52(a tetrachlorinated PCB),PCB101(a pentachlorinated PCB),and their mixture to earthworm Eisenia fetida in soil,and looked into the underlining mechanisms in an in vitro test using coelomocytes.After a 28-days exposure,all PCBs(up to 10 mg/kg)were not fatal to earthworms,but could induce intestinal histopathological changes and microbial community alterations in the drilosphere system,along with a significant weight loss.Notably,pentachlorinated PCBs with a low bioaccumulation ability showed greater inhibitory effects on the growth of earthworm than lowly chlorinated PCBs,suggesting that bioaccumulation was not the main determinant of chlorine substitution-dependent toxicity.Furthermore,in vitro assays showed that the highly chlorinated PCBs induced a high-percentage apoptosis of eleocytes in the coelomocytes and significantly activated antioxidant enzymes,indicating that the distinct cellular vulnerability to lowly/highly chlorinated PCBs was the main contributor to the PCBs toxicity.These findings emphasize the specific advantage of using earthworms in the control of lowly chlorinated PCBs in soil due to their high tolerance and accumulation ability.Jianying Zhang Mengyang He Yaoxuan Liu Lei Zhang Haojie Jiang Daohui Lin 2023Journal of Environmental Sciences2023,,6:1
14Nao Xin Tong Inhibits the Development of Diabetic Retinopathy in db/db Mice显示文摘Mengyang Liu Quan Pan Yuanli Chen 2015Evidence-Based Complementary and Alternative Medicine2015,12,:1
15Velocity structure and radial anisotropy beneath the northeastern Tibetan Plateau revealed by eikonal equation-based teleseismic P-wave traveltime tomography显示文摘The northeastern Tibetan Plateau serves as the frontier for the northeastward expansion of the plateau.In this area,the Tibetan Plateau interacts with the surrounding blocks,such as the Alxa Block,the Ordos Block,the Kunlun-West Qinling belt and the Sichuan Basin.Because of this expansion and interaction,this area suffers from intense deformation.At present,the evolution and deformation mechanisms of the northeastern Tibetan Plateau remain controversial.To provide new insights into these mechanisms,in this study,we conduct tomography of the P-wave velocity and radial anisotropy structures beneath the northeastern Tibetan Plateau.We choose a total of 667 teleseismic earthquakes from August 2006 to October 2020.Waveforms of these earthquakes were recorded by 921 broadband seismic stations in the northeastern Tibetan Plateau and surrounding areas.We first perform cross-correlation on waveforms of each station pair and obtain 770,749 P-wave traveltime differences.Then,we invert the differential traveltime data by applying eikonal equation-based teleseismic tomography.Finally,the P-wave velocity and radial anisotropy structures at depths from 30 to 800 km below the northeastern Tibetan Plateau are obtained.Our tomographic model shows clear low-velocity anomalies and positive radial anisotropy in the lower crust under the northeastern Qilian orogen,the northeastern Songpan-Ganzi belt and the western Qinling fold zone.These features are integrated to demonstrate the existence of lower crustal flow in the study area.Prominent low-velocity anomalies and positive radial anisotropy are found in the uppermost mantle beneath the Qilian orogen,the northeastern Songpan-Ganzi belt and western Qinling fold zone.These characteristics are combined to infer a weak lithosphere and horizontal asthenospheric flow under these tectonic units.Both the Ordos Block and the Sichuan Basin exhibit clear high-velocity anomalies and negative radial anisotropy in the uppermost mantle,thereby reflecting the high mechanical strength of the lithosphere beneath these blocks.High-velocity anomalies are also present in the upper mantle under the northern Chuandian block,potentially implying the northward subduction of the Indian plate.Furthermore,the front of the subducted Indian plate is imaged close to the Xianshuihe fault rather than the Kunlun fault.Mengyang LI Shaolin LIU Dinghui YANG Xiwei XU Wenhao SHEN Chaodi XIE Wenshuai WANG Shuxin YANG 2022Science China Earth Sciences2022,65,5:1
16Anion-regulation engineering toward Cu/In/MOF bimetallic electrocatalysts for selective electrochemical reduction of CO_(2) to CO/formate显示文摘The conversion of carbon dioxide(CO_(2))into high-value added energy fuels and chemicals(CO,formate,C_(2)H_(4),etc.)through electrochemical reduction(eCO_(2)R)is a promising avenue to sustainable development.However,low selectivity,barren activity and poor stability of the electrodes hinder the large-scale application of eCO_(2)R.Herein,we reported a copper-indium-organic-framework(CuIn-MOF)based high-performance catalyst for eCO_(2)R.Elec-trochemical measurement results reveal that CuIn-MOF exhibits high Faradaic efficiency(FE)of CO and formate(300 mV,FE_(CO)=78.6%at-0.86 V vs.RHE,FE_(HCOO^(-))=48.4%at-1.16 V vs.RHE,respectively)in a broad range of current density(20.1–88.4 mA cm^(-2))with long-term stability(6 h)for eCO_(2)R in 0.5 M KHCO_(3)electrolyte solution.Specifically,through anion-regulation engineering,SO_(4)^(2-)anion precursor is more beneficial for the formic acid generation than NO_(3)^(-)anion precursor;while for SO_(4)^(2-)anion precursor,Cu plays a positive regulating role in eCO_(2)R to CO compared to In.Additionally,the high performance in a home-made eCO_(2)R reactor derives benefit from enhanced intrinsic activity and charge re-distribution can be attributed to the formation of In-doped Cu layer.Bingqing Xu Israr Masood Ul Hasan Luwei Peng Junyu Liu Nengneng Xu Mengyang Fan Nabeel Khan Niazi Jinli Qiao 2022Materials Reports(Energy)2022,2,3:1
17The accelerated blood clearance phenomenon of PEGylated nanoemulsion upon cross administration with nanoemulsions modified with polyglycerin显示文摘For investigating the accelerated blood clearance(ABC) phenomenon of polyglycerin modified nanoemulsions upon cross administration with polyethylene glycol(PEG) covered nanoemulsion, we used the 1,2-distea-royl-sn-glycero-3-phosphoethanolamine-npolyglycerine-610 and the 1,2-distearoyl-n-glycero-3-phosphoethanolamine-n-[methoxy(polyethylene glycol)-2000] as modify materials, the dialkylcarbocyanines as fluorescence indicator. Exhausted macrophages rat model was established and new material containing polycarboxyl structure was synthesized. The microplate reader and the in vivo optical imaging system were applied to measure the concentration of nanoemulsions in tissues.The results show that the first dose of polyglycerin modified nanoemulsion can induce the ABC phenomenon of the second dose of PEGylated nanoemulsion. With the increase in the amount of the surface polyglycerin, the extent of the ABC phenomenon decreases. Liver accumulation has positive relationship with the ABC phenomenon. Furthermore, kupffer cells in liver can get more immune information from polyhydroxy structure than polycarboxyl group in the modify compound. The results of our work imply that the polycarboxyl structure has advantages to eliminate the ABC phenomenon.Yuqing Su Lirong Wang Kaifan Liang Mengyang Liu Xinrong Liu Yanzhi Song Yihui Deng 2018Asian Journal of Pharmaceutical Sciences2018,13,1:1
18Hydrothermal synthesis of mesostructured nanocrystalline TiO2 in an ionic liquid-water mixture and its photocatalytic performance显示文摘Liu Hong Liang Yuguang Hu Hongjiu Wang Mengyang 2009Solid State Sciences2009,11,:1
19Construction of a high-density mutant population of Chinese cabbage facilitates the genetic dissection of agronomic traits显示文摘Chinese cabbage(Brassica rapa ssp.pekinensis)is an economically important vegetable crop throughout the world,especially in Asia.High-quality genome sequences are available for Chinese cabbage,but gene functional studies remain challenging.To promote functional genomic studies of Chinese cabbage,we generated an ethyl methane sulfonate(EMS)mutant population of~8000 M_(2) plants using the double haploid inbred line A03 as the parent.The genome of A03 was sequenced and used as a reference for high-throughput functional characterization of gene mutations at the whole-genome level.A total of 300 M_(2) to M_(5) EMS mutants were phenotypically screened and then sequenced,revealing 750629 SNPs and 46272 InDel mutations that cover 98.27%of all predicted genes in the A03 genome.A forward-genetics approach was successfully used to identify two genes with chloroplast-related functions that are responsible for the yellow leaf mutant trait.A reverse-genetics approach was also used to identify associations between mutations in five genes of the glucosinolate biosynthetic pathway and variations in glucosinolate content of the mutant plants.In addition,we built the Chinese cabbage EMS mutation database(CCEMD,www.bioinformaticslab.cn/EMSmutation/home)to increase the usability of this mutant population resource.In summary,we performed large-scale screening of a heading Chinese cabbage EMS mutant collection at the phenotypic and genotypic levels,which will facilitate gene mining of Chinese cabbage and might also be useful for the study of other Brassica crops.Xiaoxue Sun Xing Li Yin Lu Shan Wang Xiaomeng Zhang Kang Zhang Xiangjie Su Mengyang Liu Daling Feng Shuangxia Luo Aixia Gu Yu Fu Xueping Chen Shuxin Xuan Yanhua Wang Donghui Xu Shumin Chen Wei Ma Shuxing Shen Feng Cheng Jianjun Zhao 2022Molecular Plant2022,15,5:1
20Effect of Kupffer cells depletion on ABC phenomenon induced by Kupffer cells-targeted liposomes显示文摘Accelerated blood clearance(ABC) phenomenon is common in many PEGylated nanocarriers, whose mechanism has not been completely elucidated yet. In this study, the correlation between Kupffer cells(KCs) and ABC phenomenon has been studied by KCs-targeted liposomes inducing ABC phenomenon and KCs depletion. In other words, the 4-aminophenyl-α-D-mannopyranoside(APM) lipid derivative DSPE-PEG 2000-APM(DPM), and 4-aminophenyl-β-L-fucopyranoside(APF) lipid derivative DSPE-PEG 2000-APF(DPF) were conjugated and modified on alendronate sodium(AD) liposomes to specifically target and deplete KCs. The dualligand modified PEGylated liposomes(MFPL) showed stronger ability to damage KCs in vitro and in vivo, which also could indirectly illustrate that dual-ligand modification could better target KCs. Besides, the hepatic biodistribution and pharmacokinetics could directly prove that MFPL had a stronger targeting ability to KCs. In addition, in depletion rats, plasma concentration and splenic biodistribution of MFPL and PEGylated liposomes(PL) were significantly elevated and hepatic biodistribution was significantly reduced, which demonstrated that KCs played an important role on elimination of nanoparticles. What’s more, ABC phenomenon of the secondary injection of PL was stronger in KCs depletion rats than that in normal rats, which indicated that depletion of KCs prolonged the circulation of PL in the first injection repeatedly stimulating B-cells in the marginal region of the spleen and causing it to secrete more IgM antibodies. This could also illustrate that anti-PEG IgM takes up a major station compared with KCs. Most important of all, KCs-targeted liposomes could induce a stronger ABC phenomenon than PL in normal rats, which declared that based on the same IgM concentration, the more the KCs were stimulated, the stronger ABC phenomenon was induced. However, in depletion rats, this difference of ABC phenomenon between PL and MFPL could no more exist, further demonstrating that KCs could participate and play a certain role in the ABC phenomenon.Chaoyang Lai Cong Li Mengyang Liu Qiujun Qiu Xiang Luo Xinrong Liu Ling Hu Yihui Deng Yanzhi Song 2019Asian Journal of Pharmaceutical Sciences2019,14,4:1
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