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26篇 您的检索式:作者名="PENG Songlin"
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1Anlotinib has good efficacy and low toxicity: a phase Ⅱ study of anlotinib in pre-treated HER-2 negative metastatic breast cancer显示文摘Objective:Anlotinib is a novel tyrosine kinase inhibitor blocking angiogenesis.This study was performed to assess the efficacy and safety of anlotinib in patients with metastatic breast cancer.Methods:Patients with HER2-negative breast cancer,who were pre-treated with anthracycline or taxanes in a neoadjuvant,adjuvant,or metastatic setting,and had treatment failure after at least one prior chemotherapy regimen in the metastatic setting were enrolled.Anlotinib was administered at 12 mg daily for 14 days in a 21-day cycle until disease progression or unacceptable toxicity occurred.Simultaneously,5–10 m L of venous blood was collected to perform circulating tumor DNA(ct DNA)testing every 2 treatment cycles.The primary endpoint was the objective response rate(ORR).Secondary endpoints included the disease control rate(DCR),progression-free survival(PFS),overall survival,safety,and biomarkers.Results:Twenty-six eligible patients were enrolled,with a median age of 56(30–75)years.The median follow-up time was 10.5 months.The ORR was 15.4%,the DCR was 80.8%,and the median PFS was 5.22 months(95%confidence interval 2.86–6.24).Fourteen(53.8%)patients survived for more than 10 months.The changes in the detectable ct DNA variant allele frequency were consistent with the tumor response.The most common treatment-related adverse events were hypertension(57.7%),thyroidstimulating hormone elevation(34.6%),and hand-foot syndrome(23.1%).Conclusion:Anlotinib showed objective efficacy with tolerable toxicity in heavily pre-treated,metastatic HER2-negative breast cancer.The dynamic changes in the ct DNA variant allele fraction may be predictive of the tumor response.Nanlin Hu Yiran Si Jian Yue Tingting Sun Xue Wang Zhuqing Jia Songlin Gao Qiao Li Yang Shao Jiayu Wang Yang Luo Fei Ma Binghe Xu Peng Yuan 2021Cancer Biology & Medicine2021,18,3:11
2Clue to a thorough understanding of terahertz pulse generation by femtosecond laser filamentation显示文摘In this work, it has been demonstrated that in order to fully understand the terahertz(THz) pulse generation process during femtosecond laser filamentation, the interaction between THz wave and air plasma has to be taken into account. This interaction is mainly associated with the spatial confinement of the THz pulse by the plasma column, which could be described by the one-dimensional negative dielectric(1DND) waveguide model. By combining the 1 DND model with the conventional four-wave mixing(4WM) and photocurrent(PC) models,the variation of THz spectral amplitude and width obtained in experiments could be better understood. Finally, a three-step procedure, with 1DND bridging 4WM and PC processes, has been established for the first time to describe the underlying mechanism of THz radiation from plasma sources.JIAYU ZHAO WEIWEI LIU SHICHANG LI DAN LU YIZHU ZHANG YAN PENG YIMING ZHU SONGLIN ZHUANG 2018Photonics Research2018,6,4:9
3Circular RNA circStag1 promotes bone regeneration by interacting with HuR显示文摘Postmenopausal osteoporosis is a common bone metabolic disorder characterized by deterioration of the bone microarchitecture,leading to an increased risk of fractures.Recently,circular RNAs(circ RNAs)have been demonstrated to play pivotal roles in regulating bone metabolism.However,the underlying functions of circ RNAs in bone metabolism in postmenopausal osteoporosis remain obscure.Here,we report that circ Stag1 is a critical osteoporosis-related circ RNA that shows significantly downregulated expression in osteoporotic bone marrow mesenchymal stem cells(BMSCs)and clinical bone tissue samples from patients with osteoporosis.Overexpression of circ Stag1 significantly promoted the osteogenic capability of BMSCs.Mechanistically,we found that circ Stag1 interacts with human antigen R(Hu R),an RNA-binding protein,and promotes the translocation of Hu R into the cytoplasm.A high cytoplasmic level of Hu R led to the activation of the Wnt signaling pathway by stabilizing and enhancing low-density lipoprotein receptor-related protein 5/6(Lrp5/6)andβ-catenin expression,thereby stimulating the osteogenic differentiation of BMSCs.Furthermore,overexpression of circ Stag1 in vivo by circ Stag1-loaded adeno-associated virus(circ Stag1-AAV)promoted new bone formation,thereby preventing bone loss in ovariectomized rats.Collectively,we show that circ Stag1 plays a pivotal role in promoting the regeneration of bone tissue via Hu R/Wnt signaling,which may provide new strategies to prevent bone metabolic disorders such as postmenopausal osteoporosis.Gaoyang Chen Canling Long Shang Wang Zhenmin Wang Xin Chen Wanze Tang Xiaoqin He Zhiteng Bao Baoyu Tan Jin Zhao Yongheng Xie Zhizhong Li Dazhi Yang Guozhi Xiao Songlin Peng 2022Bone Research2022,10,3:7
4Progress on design and related R&D activities for the water-cooled breeder blanket for CFETR显示文摘The water-cooled ceramic breeder (WCCB) blanket is one of the blanket candidates for Chinese fusion engineering testing reactor (CFETR) and is being developed at the Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). This paper reviews design and evolution of the WCCB blanket for CFETR, and presents a new WCCB blanket design according to the latest CFETR core parameters (major and minor radii are R = 7.2 m and a = 2.2 m, respectively) and missions. This new design is expected to satisfy multiple CFETR operation modes of 0.2, 0.5, 1.0, and 1.5 GW fusion power and achieve tritium self-sufficiency. The feasibility of the updated blanket design is evaluated from the aspects of neutronics and thermo-hydraulics. Furthermore, the research and development (R&D) activities supporting to the WCCB blanket for CFETR are reported, including the design code, the water loop experiments, the pebble bed modeling and experiments, and the components fabrication technology.Songlin Liu Xiaoman Cheng Xuebin Ma Lei Chen Kecheng Jiang Xia Li Hui Bao Jichao Wang Wanjing Wang Changhong Peng Peng Lu Min Li Kai Huang 2019Theoretical & Applied Mechanics Letters2019,9,3:6
5Photoinduced large polaron transport and dynamics in organic-inorganic hybrid lead halide perovskite with terahertz probes显示文摘Organic-inorganic hybrid metal halide perovskites(MHPs)have attracted tremendous attention for optoelectronic applications.The long photocarrier lifetime and moderate carrier mobility have been proposed as results of the large polaron formation in MHPs.However,it is challenging to measure the effective mass and carrier scattering parameters of the photogenerated large polarons in the ultrafast carrier recombination dynamics.Here,we show,in a one-step spectroscopic method,that the optical-pump and terahertz-electromagnetic probe(OPTP)technique allows us to access the nature of interplay of photoexcited unbound charge carriers and optical phonons in polycrystalline CH_(3)NH_(3)PbI_(3)(MAPbI_(3))of about 10μm grain size.Firstly,we demonstrate a direct spectral evidence of the large polarons in polycrystalline MAPbI_(3).Using the Drude-Smith-Lorentz model along with the Frӧhlich-type electron-phonon(e-ph)coupling,we determine the effective mass and scattering parameters of photogenerated polaronic carriers.We discover that the resulting moderate polaronic carrier mobility is mainly influenced by the enhanced carrier scattering,rather than the polaron mass enhancement.While,the formation of large polarons in MAPbI_(3)polycrystalline grains results in a long charge carrier lifetime at room temperature.Our results provide crucial information about the photo-physics of MAPbI3 and are indispensable for optoelectronic device development with better performance.Zuanming Jin Yan Peng Yuqing Fang Zhijiang Ye Zhiyuan Fan Zhilin Liu Xichang Bao Heng Gao Wei Ren Jing Wu Guohong Ma Qianli Chen Chao Zhang Alexey VBalakin Alexander PShkurinov Yiming Zhu Songlin Zhuang 2022Light(Science & Applications)2022,11,8:4
6A zinc finger protein, interacted with cyclophilin,affects root development via IAA pathway in rice显示文摘The plant hormone auxin plays a crucial role in lateral root development. To better understand the molecular mechanisms underlying lateral root formation,an auxin-responsive gene OsCYP2(Os02g0121300) was characterized from rice. Compared to the wild type,OsCYP2-RNAi(RNA interference) lines exhibited distinctive defects in lateral root development. Yeast two-hybrid and glutathione S-transferase pull-down results confirmed that OsCYP2 interacted with a C2HC-type zinc finger protein(OsZFP, Os01g0252900) which is located in the rice nucleus. T_2 OsZFP-RNAi lines had significantly fewer lateral roots than did wild-type plants, which suggests a role for OsCYP2 and OsZFP in regulating lateral root development.Quantitative real-time polymerase chain reaction showed that the expression of certain Aux/IAA(auxin/indole-3-acetic acid) genes was altered in OsCYP2-and Os ZFP-RNAi lines in response to IAA. These findings imply that OsCYP2 and OsZFP participate in IAA signal pathways controlling lateral root development. More importantly, OsIAA11 showed functional redundancy not only in OsCYP2-RNAi lines but also in Os ZFP-RNAi lines, which provides important clues for the elucidation of mechanisms controlling lateral root development in response to auxin.Peng Cui Hongbo Liu Songlin Ruan Basharat Ali Rafaqat Ali Gill Huasheng Ma Zhifu Zheng Weijun Zhou 2017Journal of Integrative Plant Biology2017,59,7:4
7Elastic Scattering of 7Be on Pb Target显示文摘Yang Yanyun Wang Jiansong Wang Qi Huang Meirong Ma Junbing Ma Peng Cao Xiguang Han Jianlong Bai Zhen Jin Shilong Hu Qiang Jin Lei Chen Jiangbo Zhang Xueying Chen Ruofu Hu Zhengguo Xu Shiwei Zhen Chuan Xu Zhiguo Xu Hushan Duan Liming Sun Zhiyu Chen Zhiqiang He Jianjun Li Songlin Lei Xiangguo Fu Fen Zhang Xueheng Yuan Xiaohua Du Chengming Yan Xinshuang Hu Jun Tang Shuwen Ye Ruiping Yang Kun Shi Fudong Zhang Wei Chen Ze Li Long Xu Xing Liu Longxiang Zhang Liyong Lin Qingyun Gou Boxing Xu Ge Zhou Xionghong Zhang Yuhu Xiao Guoqing 2011IMP & HIRFL Annual Report2011,,1:4
8Fiber-shaped organic electrochemical transistors for biochemical detections with high sensitivity and stability显示文摘Precise and continuous monitoring of biochemicals by biosensors assists to understand physiological functions for various diagnostics and therapeutic applications.For implanted biosensors,small size and flexibility are essential for minimizing tissue damage and achieving accurate detection.However,the active surface area of sensor decreases as the sensor becomes smaller,which will increase the impedance and decrease the signal to noise ratio,resulting in a poor detection limit.Taking advantages of local amplification effect,organic electrochemical transistors(OECTs)constitute promising candidates for high-sensitive monitoring.However,their detections in deep tissues are rarely reported.Herein,we report a family of implantable,fiber-shaped all-in-one OECTs based on carbon nanotube fibers for versatile biochemical detection including H2O2,glucose,dopamine and glutamate.These fiber-shaped OECTs demonstrated high sensitivity,dynamical stability in physiological environment and antiinterference capability.After implantation in mouse brain,7-day dopamine monitoring in vivo was realized for the first time.These fiber-shaped OECTs could be great additions to the'life science'tool box and represent promising avenue for biomedical monitoring.Xiaoying Wu Jianyou Feng Jue Deng Zhichang Cui Liyuan Wang Songlin Xie Chuanrui Chen Chengqiang Tang Zhengqi Han Hongbo Yu Xuemei Sun Huisheng Peng 2020Science China Chemistry2020,63,9:3
9Terahertz spatial sampling with subwavelength accuracy显示文摘A simple terahertz(THz)spatial sampling method offers kilohertz(kHz)level sampling rates and greatly preserves the energy of a THz pulse,which enables THz imaging detection with a high signal-to-noise ratio,micron-grade accuracy,and subwavelength resolution.Yan Peng Yiming Zhu Min Gu Songlin Zhuang 2019Light(Science & Applications)2019,8,1:2
10Terahertz Imaging and Spectroscopy in Cancer Diagnostics:A Technical Review显示文摘Terahertz(THz)waves are electromagnetic waves with frequency in the range from 0.1 to 10 THz.THz waves have great potential in the biomedical field,especially in cancer diagnosis,because they exhibit low ionization energy and can be used to discern most biomolecules based on their spectral fingerprints.In this paper,we review the recent progress in two applications of THz waves in cancer diagnosis:imaging and spectroscopy.THz imaging is expected to help researchers and doctors attain a direct intuitive understanding of a cancerous area.THz spectroscopy is an efficient tool for component analysis of tissue samples to identify cancer biomarkers.Additionally,the advantages and disadvantages of the developed technologies for cancer diagnosis are discussed.Furthermore,auxiliary techniques that have been used to enhance the spectral signal-to-noise ratio(SNR)are also reviewed.Yan Peng Chenjun Shi Xu Wu Yiming Zhu Songlin Zhuang 2020Biomedical Engineering Frontiers2020,1,1:2
11Osteoprotegerin deficiency attenuates strontium-mediated inhibition of osteoclastogenesis and bone resorption显示文摘PENG Songlin LIU X S ZHOU Guangqian 2011J Bone Miner Res2011,26,6:1
12Impairment of the Anti-body-Dependent Phagocytic Function of PMNs through Regula-tion of the FcγRs Expression after Porcine Reproductive and Re-spiratory Syndrome Virus Infection显示文摘Bo Wan Songlin Qiao Peng Li 2013PLo S ONE2013,8,66:1
13Terahertz Spectroscopy for Accurate Identification of Panax quinquefolium Basing on Nonconjugated 24(R)-Pseudoginsenoside F_(11)显示文摘Panax quinquefolium is a perennial herbaceous plant that contains many beneficial ginsenosides with diverse pharmacological effects.24(R)-pseudoginsenoside F_(11)is specific to P.quinquefolium,a useful biomarker for distinguishing this species from other related plants.However,because of its nonconjugated property and the complexity of existing detection methods,this biomarker cannot be used as the identification standard.We herein present a stable 24(R)-pseudoginsenoside F_(11)fingerprint spectrum in the terahertz band,thereby proving that F_(11)can be detected and quantitatively analyzed via terahertz spectroscopy.We also analyzed the sample by high-performance liquid chromatography-triple quadrupole mass spectrometry.The difference between the normalized data for the two analytical methods was less than 5%.Furthermore,P.quinquefolium from different areas and other substances can be clearly distinguished based on these terahertz spectra with a standard principal component analysis.Our method is a fast,simple,and cost-effective approach for identifying and quantitatively analyzing P.quinquefolium.Tianyi Kou Ji Ye Jing Wang Yan Peng Zefang Wang Chenjun Shi Xu Wu Xitian Hu Haihong Chen Ling Zhang Xiaohong Chen Yiming Zhu Huiliang Li Songlin Zhuang 2021Plant Phenomics2021,3,1:1
14Differentiation of Mesenchymal Stem Cells Through Ras/MAPK Signaling Pathway显示文摘Songlin Peng Guangqian Zhou 2009Cell Physiol Biochem2009,,23:1
15Molecular cloning and characterization analysis of immunoglobulin M heavy chain gene in European eel ( Anguilla anguilla )显示文摘Jianjun Feng Ruizhang Guan Peng Lin Songlin Guo 2008Veterinary Immunology and Immunopathology2008,,1:1
16Clinical epidemiology of central venous catheter–related bloodstream infections in an intensive care unit in China显示文摘Songlin Peng Yan Lu 2012Journal of Critical Care2012,,:1
17Differentiation of Mesenchymal Stem Cells Through Ras/MAPK Signaling Pathway显示文摘Songlin Peng Guangqian Zhou 2009Cell Physiol Biochem2009,,23:1
18Seasonal snow cover patterns explain alpine treeline elevation better than temperature at regional scale显示文摘Unprecedented modern rates of warming are expected to advance alpine treelines to higher elevations,but global evidence suggests that current treeline dynamics are influenced by a variety of factors.Seasonal snow cover has an essential impact on tree recruitment and growth in alpine regions,which may in turn influence current treeline elevation;however,little research has been conducted on its role in regional treeline formation.Based on 11,804treeline locations in the eastern Himalayas,we extracted elevation,climate,and topographic data for treeline and snowline.Specifically,we used linear and structural equation modelling to assess the relationship between these environmental factors and treeline elevation,and the climate-snow-treeline interaction mechanism.The results showed that the treeline elevation increased with summer temperature and permanent or seasonal snowline elevation,but decreased with snow cover days and spring temperature at the treeline positions(P<0.001).Importantly,spring snowline elevation(33.4%)and seasonal snow cover days(21.1%)contributed the most to treeline elevation,outperforming the permanent snowline,temperature,precipitation,and light.Our results support the assertion that the temperature-moisture interaction affects treeline elevation in the eastern Himalayas,but we also found that the effects were strongly mediated by seasonal snow cover patterns.The increasing tendency of snow cover governed by climate humidification observed in the eastern Himalayas,is likely to limit future treeline advancement and may even cause treeline decline due to the mortality of the remaining old trees.Together,our findings highlight the role of seasonal snow cover patterns in determining treeline elevation in the eastern Himalayas,which should be considered when assessing the potential for treeline ascent in snow-mediated alpine systems elsewhere.Mengyue Huang Guoyan Wang Xiaojuan Bie Yunqing Jiang Xiyue Huang Jing-Ji Li Songlin Shi Tingbin Zhang Pei-Hao Peng 2023Forest Ecosystems2023,10,2:0
19Discrete element modeling and verification of the simulation parameters for chopped hybrid Broussonetia papyrifera stems显示文摘In this study,the discrete element software EDEM was applied to establish a simulation model of non-uniform-sized particle units for Broussonetia papyrifera stalks,which aimed to address the low utilization rate of existing Broussonetia papyrifera harvesting machinery,the significant variation between the simulated model of Broussonetia papyrifera stalks and their actual appearance,as well as the absence of contact parameter calibration.Through a combination of the free-fall collision method,inclined plane sliding method,and inclined plane rolling method,numerical simulation was conducted to analyze the pattern of variations in contact parameters between Broussonetia papyrifera stalks and the steel material of the machinery.Accordingly,these parameters were calibrated.The results showed that the coefficient of restitution between Broussonetia papyrifera stalks and steel materials was 0.321,the static friction factor was 0.589,and the rolling friction factor was 0.078.With the parameters of contact between Broussonetia papyrifera stalks as variables and the experimentally measured pile angle as the objective of optimization,the steepest ascent experiment and the three-factor five-level rotation combination experiment were conducted.In this way,a second-order response model was constructed to analyze the relationship between the contact parameters and the pile angle.Through the optimization analysis of experimental data,it was determined that the coefficient of restitution between Broussonetia papyrifera stalks was 0.21,the static friction factor was 0.24,and the rolling friction factor was 0.03.Furthermore,the calibration results were validated through experimentation to show that the relative error between the obtained pile angle under the context of optimal parameter combination and the actual one was 4.11%.In addition,the relative error of mass flow rate in spiral transport was within a reasonable range,this study lays a foundation both theoretically and statistically for the simulation of contact parameters for Broussonetia papyrifera stalk harvesting processing,mechanical harvesting,and so on.Caiwang Peng Junwei Chen Xi He Songlin Sun Yulong Yin Zhong Chen 2024International Journal of Agricultural and Biological Engineering2024,17,1:0
20Transcriptome analysis and candidate gene identification reveals insights into the molecular mechanisms of hypermelanosis in Chinese tongue sole(Cynoglossus semilaevis)显示文摘Blind-side hypermelanosis has emerged as a major concern in flatfish aquaculture worldwide,including tongue sole(Cynoglossus semilaevis)in China.The causative gene and the molecular basis are still unclear.In this study,comparative transcriptome analyses were performed using different skin tissues of tongue sole:ocular-side normal(pigmented)skin,blind-side normal(non-pigmented)skin and blind-side hypermelanotic(pigmented)skin.Finally,60 key hypermelanosis-related genes were mined,providing potential candidate gene resources involved in blind-side hypermelanosis.These genes were selected based on the log2(FoldChange)and false discovery rate(FDR)values(with corresponding P-Values<0.05),and they were verified in other species to assess if they were directly or indirectly related to melanogenesis.The protein-protein interaction network of these 60 genes and the relationship between tyr and other key hypermelanosis-related genes were illustrated.The qRT-PCR validation of 16 differentially expressed genes(DEGs)showed that the data of qRT-PCR were consistent with those of RNA-seq.Further analyses revealed that the selected DEGs were significantly overrepresented in several pigment metabolic processes and in the melanogenesis pathway.Our results may imply that blind-side hypermelanosis is a pattern of environmental regulation of gene expression and adaptation in flatfish.Membrane transport proteins(such as OCA2 and SLC45A2)may serve as a“switch”for melanogenesis in tongue sole.Overall,this study provided novel insights into the molecular mechanism of hypermelanosis in flatfish species and will facilitate future selective breeding of tongue sole for this market-favoured trait in aquaculture.Yangzhen Li Peng Cheng Ming Li Yuanri Hu Zhongkai Cui Chuantao Zhang Songlin Chen 2022Aquaculture and Fisheries2022,7,6:0
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