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7篇 您的检索式:作者名="Mengfan Yang"
    题名 作者 年代 出处 被引量
1Architectural proteins for the formation and maintenance of the 3D genome显示文摘Eukaryotic genomes are densely packaged into hierarchical three-dimensional(3D) structures that contain information about gene regulation and many other biological processes. With the development of imaging and sequencing-based technologies, 3D genome studies have revealed that the high-order chromatin structure is composed of hierarchical levels, including chromosome territories, A/B compartments, topologically associated domains, and chromatin loops. However, how this chromatin architecture is formed and maintained is not completely clear. In this review, we introduce experimental methods to investigate the 3D genome, review major architectural proteins that regulate 3D chromatin organization in mammalian cells, such as CTCF(CCCTC-binding factor), cohesin, lamins, and transcription factors, and discuss relevant mechanisms such as phase separation.Mengfan Li Jingbo Gan Yuao Sun Zihan Xu Junsheng Yang Yujie Sun Cheng Li 2020Science China(Life Sciences)2020,63,6:7
2Stretchable polymer composites with ultrahigh piezoelectric performance显示文摘Flexible piezoelectric materials capable of withstanding large deformation play key roles in flexible electronics.Ferroelectric ceramics with a high piezoelectric coefficient are inherently brittle,whereas polar polymers exhibit a low piezoelectric coefficient.Here we report a highly stretchable/compressible piezoelectric composite composed of ferroelectric ceramic skeleton,elastomer matrix and relaxor ferroelectric-based hybrid at the ceramic/matrix interface as dielectric transition layers,exhibiting a giant piezoelectric coefficient of 250 picometers per volt,high electromechanical coupling factor keff of 65%,ultralow acoustic impedance of 3MRyl and high cyclic stability under 50%compression strain.The superior flexibility and piezoelectric properties are attributed to the electric polarization and mechanical load transfer paths formed by the ceramic skeleton,and dielectric mismatch mitigation between ceramic fillers and elastomer matrix by the dielectric transition layer.The synergistic fusion of ultrahigh piezoelectric properties and superior flexibility in these polymer composites is expected to drive emerging applications in flexible smart electronics.Tongxiang Tang Zhonghui Shen Jian Wang Shiqi Xu Jiaxi Jiang Jiahui Chang Mengfan Guo Youjun Fan Yao Xiao Zhihao Dong Houbing Huang Xiaoyan Li Yihui Zhang Danyang Wang Long-Qing Chen Ke Wang Shujun Zhang Ce-Wen Nan Yang Shen 2023National Science Review2023,10,8:1
3Novel potential XOD inhibitory peptides derived from Trachinotus ovatus:Isolation,identification and structure-function analysis显示文摘This study aimed to isolate and identify the novel potential Xanthine oxidase(XOD)inhibitory peptides derived from Trachinotus ovatus hydrolysate(TOH)(hydrolysis by neutral protease),and investigate their structure-function relationship.Initially,TOH was separated to four fractions(F1–F4)by gel filtration chromatography and F4 was chosen with higher XOD inhibitory rate(85.16%±0.566,25 mg/mL)and lower molecular weight(95.73%,<1000 Da).F4 was further characterized by reversed-phase high performance liquid chromatography(RP-HPLC)coupled with Nano-HPLC-MS/MS and four peptides(FPAW,LLPW,WLLP and FHLP)were identified with IC50 value of 3.81±0.18 mM,4.17±0.12 mM,43.06±0.73 mM,and over 50.00 mM respectively.It can be concluded that Trp-containing peptides especially located in C-terminal could inhibit XOD effectively.Moreover,the XOD-inhibiting actions of these peptides involvedπ-πstacking(Phe914 and Phe1009 in XOD),hydrogen bonding via molecular docking.Lineweaver-Burk equation showed the inhibition type of FPAW was a mixed inhibition.Circular dichroism(CD)spectra indicated FPAW could combine and change the secondary structure of XOD.Therefore,two peptides of FPAW and LLPW might have potential to be used to alleviate hyperuricemia in the future.Mengfan Hou Huan Xiang Xiao Hu Shengjun Chen Yanyan Wu Jiachao Xu Xianqing Yang 2022Food Bioscience2022,47,3:1
4Limosilactobacillus mucosae FZJTZ26M3 prevents NAFLD in mice through modulation of lipid metabolism and gut microbiota dysbiosis显示文摘Lactobacillus are considered promising therapeutic methods for nonalcoholic fatty liver disease(NAFLD).The effects of two strains of Ltmosilactobacillus mucosae on NAFLD were investigated in this study.Fourweek-old male C57BL/6J mice were divided into 4 groups(n=8 per group,Control,Model,FZJTZ26M3,FGSYC17L3).L.mucosae FZJTZ26M3 reduced the mice 's body weight,liver weight,and adipose tissue weight after 12 weeks of therapy.According to serum analysis,total cholesterol,triacylglycerol,and low-density lipoprotein cholesterol significantly decreased after L.mucosae FZJTZ26M3 intervention.Liver pathology showed that L.mucosae FZJTZ26M3 was effective to ameliorate lipid deposition in NAFLD mice.Additionally,the expression of the gene related to lipid metabolism in the liver and adipose tissue was analyzed,and the results indicated that L.mucosae FZJTZ26M3 could alleviate NAFLD by regulating lipid metabolism.Furthermore,the results of 16S rRNA gene sequencing revealed a drop in the relative abundance of Ruminococcaceae,which is linked to inflammation,but the relative abundance of a potential probiotic Akkermansia significantly increased after L.mucosae FZJTZ26M3 intervention.Generally,L.mucosae FZJTZ26M3 could be a candidate to prevent NAFLD.Danting Dang Bowen Li Mengfan Ding RPaul Ross Catherine Stanton Jianxin Zhao Bo Yang Wei Chen 2024Food Science and Human Wellness2024,13,3:0
5Stratified Analysis of Survival Benefit for ABO-incompatible Deceased-donor Liver Transplantation:Multicenter Propensity Score-matched Study显示文摘Background and Aims:Liver transplantation(LT)using ABO-incompatible(ABOi)grafts can extend the donor pool to a certain extent and hence reduce the waiting time for transplantation.However,concerns of the impending prognosis associated with this option,especially for patients with liver failure and higher model for end-stage liver disease(MELD)scores,who tend to be more fragile during the waiting period before LT.Methods:Recipients undergoing LT for acute-onchronic liver failure or acute liver failure were retrospectively enrolled at four institutions.Overall survival was compared and a Cox regression analysis was performed.Propensity score matching was performed for further comparison.Patients were stratified by MELD score and cold ischemia time(CIT)to determine the subgroups with survival benefits.Results:Two hundred ten recipients who underwent ABOi LT and 1,829 who underwent ABO compatible(ABOc)LT were enrolled.The 5-year overall survival rate was significantly inferior in the ABOi group compared with the ABOc group after matching(50.6%vs.75.7%,p<0.05).For patients with MELD scores≤30,using ABOi grafts achieved a comparable overall survival rate as using ABOc grafts(p>0.05).Comparison of the survival rates revealed no statistically significant difference for patients with MELD scores≥40(p>0.05).For patients with MELD scores of 31-39,the overall survival rate was significantly inferior in the ABOi group compared with the ABOc group(p<0.001);however,the rate was increased when the liver graft CIT was<8 h.Conclusions:For recipients with MELD scores≤30,ABOi LT had a prognosis comparable to that of ABOc LT and can be regarded as a feasible option.For recipients with MELD scores≥40,ABOi should be adopted with caution in emergency cases.For recipients with MELD scores of 31-39,the ABOi LT prognosis was worse.However,those patients benefited from receiving ABOi grafts with a CIT of<8 h.Mengfan Yang Xuyong Wei Abdul Rehman Khan Qiang Wei Rui Wang Binhua Pan Kun Wang Zhisheng Zhou Di Lu Beini Cen Shuijun Zhang Wenzhi Guo Shusen Zheng Yang Yang Xiao Xu 2023Journal of Clinical and Translational Hepatology2023,11,4:0
6Systematic Review and Meta-analysis:Immunosuppressive Agents for the Treatment of Primary Biliary Cholangitis显示文摘Background and aim:There are still no clinically satisfactory therapy for PBC.This study was performed to assess the safety and efficacy of IAs for the therapy of PBC.Methods:Relevant studies were identified and selected by searching PubMed,Web of Science and Cochrane Library databases.The primary outcome was defined as the need for mortality or liver transplantation.Adverse effects and liver biochemical variables were a secondary outcome.Results:Nine randomized controlled trials,involving six different treatment regimens with a total of 996 patients,were included in the analysis.On meta-analysis,IAs was not associated with a reduction in risk of mortality or liver transplantation(risk ratio[RR]:0.92,95% confidence interval[CI]:0.69-1.22,P=0.57,P=0%),and have resulted in more adverse effects(RR:1.44,95%CI:1.08-1.92,P=0.01,P=19%).Subgroup analysis showed that IAs monotherapy caused adverse effects such as diarrthea,abdominal pain,and renal insufficiency(RR:1.36,95% CI:1.01-1.82,P=0.04,P=48%).IAs therapy did not prominently improve markers of liver function except for alkaline phosphatases(weighted mean difference[WMD]:-0.38,95% CI:-0.62 to-0.14,P=0.002).Conclusions:IAs cannot reduce the risk of mortality or liver transplantation,whether in IAs monotherapy or combination therapy,and even be associated with more adverse effects.Mengfan Du Bing Xu Ru Xiang Qian Li Yang Chen Yu Fan 2021Journal of Clinical and Nursing Research2021,5,4:0
7Activation of peroxymonosulfate by FeVO_(3-x)for the degradation of carbamazepine:Vanadium mediated electron shuttle and oxygen vacancy modulated interface chemistry显示文摘Fast Fe(III)/Fe(II)circulation in heterogeneous peroxymonosulfate(PMS)activation remains as a bottleneck issue that restricts the development of PMS based advanced oxidation processes.Herein,we proposed a facile ammonia reduction strategy and synthesized a novel FeVO3-x catalysts to activate PMS for the degradation of a typical pharmaceutical,carbamazepine(CBZ).Rapid CBZ removal could be achieved within 10 min,which outperforms most of the other iron or vanadium-based catalysts.Electron paramagnetic resonance analysis and chemical probe experiments revealed SO_(4)^(·-),·OH,O_(2)^(·-)and high valent iron(Fe(IV))were all generated in this system,but SO4·-and Fe(IV)primarily contributed to the degradation of CBZ.Besides,X-ray photoelectron spectroscopy and X-ray adsorption spectroscopy indicated that both the generated low-valent V provides and oxygen vacancy acted as superior electron donors and accelerated internal electron transfer via the unsaturated V-O-Fe bond.Finally,the proposed system also exhibited satisfactory performance in practical applications.This work provides a promising platform in heterogeneous PMS activation.Leiduo Lai Hongyu Zhou Yichen Hong Mengfan Luo Yang Shi Heng Zhang Zhaokun Xiong Gang Yao Bo Lai 2024Chinese Chemical Letters2024,35,1:0
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