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13篇 您的检索式:作者名="Minqi Li"
    题名 作者 年代 出处 被引量
1Kinsenoside attenuates osteoarthritis by repolarizing macrophages through inactivating NF-κB/MAPK signaling and protecting chondrocytes显示文摘The objective was to investigate the effect of kinsenoside(Kin) treatments on macrophage polarity and evaluate the resulting protection of chondrocytes to attenuate osteoarthritis(OA) progression.RAW264.7 macrophages were polarized to M1/M2 subtypes then administered with different concentrations of Kin. The polarization transitions were evaluated with quantitative real-time polymerase chain reaction(q RT-PCR), confocal observation and flow cytometry analysis. The mechanism of Kin repolarizing M1 macrophages was evaluated by Western blot. Further, macrophage conditioned medium(CM) and IL-1β were administered to chondrocytes. Micro-CT scanning and histological observations were conducted in vivo on anterior cruciate ligament transection(ACLT) mice with or without Kin treatment. We found that Kin repolarized M1 macrophages to the M2 phenotype. Mechanistically, Kin inhibited the phosphorylation of IκBα, which further reduced the downstream phosphorylation of P65 in nuclear factor-κB(NF-κB) signaling. Moreover, Kin inhibited mitogen-activated protein kinases(MAPK) signaling molecules p-JNK, p-ERK and p-P38. Additionally, Kin attenuated macrophage CM and IL-1β-induced chondrocyte damage. In vivo, Kin reduced the infiltration of M1 macrophages,promoted M2 macrophages in the synovium, inhibited subchondral bone destruction and reduced articular cartilage damage induced by ACLT. All the results indicated that Kin is an effective therapeutic candidate for OA treatment.Feng Zhou Jingtian Mei Xiuguo Han Hanjun Li Shengbing Yang Minqi Wang Linyang Chu Han Qiao Tingting Tang 2019Acta Pharmaceutica Sinica B2019,9,5:35
2Targeting ferroptosis suppresses osteocyte glucolipotoxicity and alleviates diabetic osteoporosis显示文摘Diabetic osteoporosis(DOP) is the leading complication continuously threatening the bone health of patients with diabetes. A key pathogenic factor in DOP is loss of osteocyte viability. However, the mechanism of osteocyte death remains unclear. Here, we identified ferroptosis, which is iron-dependent programmed cell death, as a critical mechanism of osteocyte death in murine models of DOP. The diabetic microenvironment significantly enhanced osteocyte ferroptosis in vitro, as shown by the substantial lipid peroxidation, iron overload, and aberrant activation of the ferroptosis pathway. RNA sequencing showed that heme oxygenase-1(HO-1) expression was notably upregulated in ferroptotic osteocytes. Further findings revealed that HO-1 was essential for osteocyte ferroptosis in DOP and that its promoter activity was controlled by the interaction between the upstream NRF2 and c-JUN transcription factors. Targeting ferroptosis or HO-1 efficiently rescued osteocyte death in DOP by disrupting the vicious cycle between lipid peroxidation and HO-1 activation, eventually ameliorating trabecular deterioration. Our study provides insight into DOP pathogenesis, and our results provide a mechanism-based strategy for clinical DOP treatment.Yiqi Yang Yixuan Lin Minqi Wang Kai Yuan Qishan Wang Pei Mu Jingke Du Zhifeng Yu Shengbing Yang Kai Huang Yugang Wang Hanjun Li Tingting Tang 2022Bone Research2022,10,3:19
3QTG-Seq Accelerates QTL Fine Mapping through QTL Partitioning and Whole-Genome Sequencing of Bulked Segregant Samples显示文摘Deciphering the genetic mechanisms underlying agronomic traits is of great importance for crop improvement. Most of these traits are controlled by multiple quantitative trait loci (QTLs), and identifying the underlying genes by conventional QTL fine-mapping is time-consuming and labor-intensive. Here, we devised a new method, named quantitative trait gene sequencing (QTG-seq), to accelerate QTL fine-mapping. QTGseq combines QTL partitioning to convert a quantitative trait into a near-qualitative trait, sequencing of bulked segregant pools from a large segregating population, and the use of a robust new algorithm for identifying candidate genes. Using QTG-seq, we fine-mapped a plant-height QTL in maize (Zea mays L.), qPH7, to a 300-kb genomic interval and verified that a gene encoding an NF-YC transcription factor was the functional gene. Functional analysis suggested that qPH7-encoding protein might influence plant height by interacting with a CO-like protein and an AP2 domain-containing protein. Selection footprint ana卜 ysis indicated that qPH7 was subject to strong selection during maize improvement. In summary, QTG-seq provides an efficient method for QTL fine-mapping in the era of “big data'.Hongwei Zhang Xi Wang Qingchun Pan Pei Li Yunjun Liu Xiaoduo Lu Wanshun Zhong Minqi Li Linqian Han Juan Li Pingxi Wang Dongdong Li Yan Liu Qing Li Fang Yang Yuan-Ming Zhang Guoying Wang Lin Li 2019Molecular Plant2019,12,3:13
4A 3D-bioprinted scaffold with doxycycline-controlled BMP2-expressing cells for inducing bone regeneration and inhibiting bacterial infection显示文摘Large bone defects face a high risk of pathogen exposure due to open wounds,which leads to high infection rates and delayed bone union.To promote successful repair of infectious bone defects,fabrication of a scaffold with dual functions of osteo-induction and bacterial inhibition is required.This study describes creation of an engineered progenitor cell line(C3H10T1/2)capable of doxycycline(DOX)-mediated release of bone morphogenetic protein-2(BMP2).Three-dimensional bioprinting technology enabled creation of scaffolds,comprising polycaprolactone/mesoporous bioactive glass/DOX and bioink,containing these engineered cells.In vivo and in vitro experiments confirmed that the scaffold could actively secrete BMP2 to significantly promote osteoblast differentiation and induce ectopic bone formation.Additionally,the scaffold exhibited broad-spectrum antibacterial capacity,thereby ensuring the survival of embedded engineered cells when facing high risk of infection.These findings demonstrated the efficacy of this bioprinted scaffold to release BMP2 in a controlled manner and prevent the occurrence of infection;thus,showing its potential for repairing infectious bone defects.Minqi Wang Hanjun Li Yiqi Yang Kai Yuan Feng Zhou Haibei Liu Qinghui Zhou Shengbing Yang Tingting Tang 2021Bioactive Materials2021,6,5:3
5MicroRNA-505 identified from patients with essential hypertension impairs endothelial cell migration and tube formation显示文摘Qinbo Yang Chenglin Jia Peiwei Wang Minqi Xiong Jingang Cui Li Li Wenjian Wang Qingyu Wu Yu Chen Teng Zhang 2014International Journal of Cardiology2014,,:1
6Polyurethane grouting materials with different compositions for the treatment of mud pumping in ballastless track subgrade beds:properties and application effect显示文摘Mud pumping in subgrade beds under ballastless tracks will deteriorate the dynamic performance of infrastructure under railway lines,reduce the smoothness of the railway lines,and seriously affect the comfort and safety of the trains.Due to their good mechanical properties,twocomponent polyurethane materials can be used for grouting to treat the fouling problems caused by ballastless track mud pumping.To develop a polyurethane formula suitable for the treatment of ballastless track mud pumping,we first performed indoor experiments to investigate the mechanical properties and gelation time of polyurethane elastomers synthesized with different raw material composition ratios,to determine an optimal composition ratio of the raw materials.Then,we conducted a dynamic field test to verify the remediation effect of the polyurethane material fabricated according to the design ratio.The results showed that polyurethane grouting material with the selected design ratios improved the contact characteristics between the surface layer of the subgrade bed and the base plate in the area,coordinating the dynamic response between the track structure and the subgrade bed.Thus,the obtained polyurethane grouting material could be used to renovate mud pumping areas of ballastless tracks with a good treatment effect.Zhichao Huang Qian Su Junjie Huang Minqi Dong Dong Li Ting Liu 2022Railway Engineering Science2022,30,2:1
7Carbon nanofibers membrane bridged with graphene nanosheet and hyperbranched polymer for high-performance osmotic energy harvesting显示文摘Reverse electrodialysis(RED),based on ion-selective membranes,is one of the most promising technologies for capturing osmotic energy.As key elements of the RED system,ion-selective membranes must meet the crucial demands of mechanical stability,anti-fouling characteristics,easy fabrication,and high power density;however,this still remains a challenge.In this study,we demonstrated a large-scale,mechanically stable,and high-porosity membrane obtained by combining carbon nanomaterials and hyperbranched polyethyleneimine(h-PEI),thereby achieving a high power density of 5.0 W·m−2 with seawater and river water.Carbon nanofibers(CNFs)were subsequently bridged with graphene and h-PEI to strengthen the interaction between the CNFs,reduce the channel size and increase the space charge density,mechanical strength,and toughness.The large-scale and mechanically stable membrane fabricated using the modified CNFs exhibited anion selectivity and high ionic conductivity,thereby achieving a high-performance osmotic energy conversion.Furthermore,the anti-fouling property of the membrane was confirmed by the stability of the osmotic energy conversion in a solution with algae,which can be attributed to the high porosity of carbon nanomaterials.This economic and convenient method for the ion-selective membrane preparation is believed to be promising for large-scale osmotic energy harvesting.Weijie Wang Jinlin Hao Qian Sun Minqi Zhao Huiyi Liu Chao Li Xin Sui 2023Nano Research2023,16,1:1
8Cytotoxic activities of chitosan nanoparticles and copper-loaded nanoparticles显示文摘Lifeng Qi Zirong Xu Xia Jiang Yan Li Minqi Wang 2005Bioorganic & Medicinal Chemistry Letters2005,,5:1
9Synthesis, Characterization, Hydrolytic Degradation, and Biocompatibility of Poly[bis(lactic acid ester)phosphazenes)]显示文摘Xiaoying Gong Li Xu Lidong Shao Lin Chen Minqi Hu Yunmei Bi 2013International Journal of Polymeric Materials and Polymeric Biomaterials2013,,2:1
10A clinical study of alveolarbone tissue engineering with cultured autogenous periosteal cells:coordinated activation of bone formation and resorption 显示文摘Nagata M Hoshina H Li Minqi 2012Bone2012,50,5:1
11The Rise of the Working Class and the Future of the Chinese Revolution 显示文摘Minqi Li 2011Monthly Review2011,63,2:1
12Mitochondrial DNA genetic polymorphism in thirteen rice cytoplasmic male sterile lines显示文摘Ji Luan Tianran Liu Weiqi Luo Wen Liu Minqi Peng Wenjia Li Xiaojun Dai Manzhong Liang Liangbi Chen 2013Plant Cell Reports2013,,4:1
13Host-Defense-Peptide-Mimickingβ-Peptide Polymer Acting as a Dual-Modal Antibacterial Agent by Interfering Quorum Sensing and Killing Individual Bacteria Simultaneously显示文摘Host defense peptides(HDPs)are one of the potentially promising agents for infection diseases due to their broad spectrum and low resistance rate,but their clinical applications are limited by proteolytic instability,high-cost,and complicated synthesis process.Here,we report a host-defense-peptidemimickingβ-peptide polymer that resists proteolysis to have enhanced the activity under physiological conditions,excellent antimicrobial efficiency even at high density of bacteria,and low cost for preparation.Theβ-peptide polymer demonstrated quorum sensing(QS)interference and bactericidal effect against both bacterial communities and individual bacterium to simultaneously block bacterial communication and disrupt bacterial membranes.The hierarchical QS network was suppressed,and main QS signaling systems showed considerably down-regulated gene expression,resulting in excellent biofilm eradication and virulence reduction effects.The dual-modal antibacterial ability possessed excellent therapeutic effects in Pseudomonas aeruginosa pneumonia,which could inhibit biofilm formation and exhibit better antibacterial and anti-inflammatory efficiency than clinically used antibiotics,levofloxacin.Furthermore,theβ-peptide polymer also showed excellent therapeutic effect Escherichia coli pyogenic liver abscess.Together,we believed that theβ-peptide polymer had a feasible clinical potential to treat bacterial infection diseases.Wanlin Li Ximian Xiao Yuchen Qi Xiuhui Lin Huiqun Hu Minqi Shi Min Zhou Weinan Jiang Longqiang Liu Kang Chen Kai Wang Runhui Liu Min Zhou 2023Research2023,,4:0
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