|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effects of baicalein on pancreatic cancer stem cells via modulation of sonic Hedgehog pathway显示文摘 | Libin Song Xiangyuan Chen Peng Wang Song Gao Chao Qu Luming Liu | 2018 | Acta Biochimica et Biophysica Sinica2018,50,6: | 10 |
| 2 | Kinematics and trajectory planning of a cucumber harvesting robot manipulator显示文摘In order to reduce cucumber harvesting cost and improve economic benefits,a cucumber harvesting robot was developed.The cucumber harvesting robot consists of a vehicle,a 4-DOF articulated manipulator,an end-effector,an upper monitor,a vision system and four DC servo drive systems.The Kinematics of the cucumber harvesting robot manipulator was constructed using D-H coordinate frame model.And the inverse kinematics which provides a foundation for trajectory planning has been solved with inverse transform technique.The cycloidal motion,which has properties of continuity and zero velocity and acceleration at the ports of the bounded interval,was adopted as a feasible approach to plan trajectory in joint space of the cucumber harvesting robot manipulator.Moreover,hardware and software based on CAN-bus communication between the upper monitor and the joint controllers have been designed.Experimental results show that the upper monitor communicates with the four joint controllers efficiently by CAN-bus,and the integrated errors of four joint angles do not exceed four degrees.Probable factors resulting in the errors were analyzed and the corresponding solutions for improving precision are proposed. | Zhang Libin Wang Yan Yang Qinghua Bao Guanjun Gao Feng Xun Yi | 2009 | International Journal of Agricultural and Biological Engineering2009,2,1: | 7 |
| 3 | Revisiting ovarian cancer microenvironment: a friend or a foe?显示文摘 | Boyi Zhang Fei Chen Qixia Xu Liu Han Jiaqian Xu Libin Gao Xiaochen Sun Yiwen Li Yan Li Min Qian Yu Sun | 2018 | Protein & Cell2018,9,8: | 6 |
| 4 | Pharmacological Activation of RXR-a Promotes Hematoma Absorption via a PPAR-y-dependent Pathway After Intracerebral Hemorrhage显示文摘Endogenously eliminating the hematoma is a favorable strategy in addressing intracerebral hemorrhage(ICH).This study sought to determine the role of retinoid X receptor-ot(RXR-a)in the context of hematoma absorption after ICH.Our results showed that pharmacologically activating RXR-a with bexarotene significantly accelerated hematoma clearance and alleviated neurological dysfunction after ICH.RXR-ot was expressed in microglia/macro-phages,neurons,and astrocytes.Mechanistically,bexarotene promoted the nuclear translocation of RXR-a and PPAR-y,as well as reducing neuroinflammation by modulating microglia/macrophage reprograming from the Ml into the M2 phenotype.Furthermore,all the beneficial effects of RXR-a in ICH were reversed by the PPAR-y inhibitor GW9662.In conclusion,the pharmacological activation of RXR-a confers robust neuroprotection against ICH by accelerating hematoma clearance and repolarizing microglia/macrophages towards the M2 phenotype through PPAR-y-related mechanisms.Our data support the notion that RXR-ot might be a promising therapeutic target for ICH. | Chaoran Xu Huaijun Chen Shengjun Zhou Chenjun Sun Xiaolong Xia Yucong Peng Jianfeng Zhuang Xiongjie Fu Hanhai Zeng Hang Zhou Yang Cao Qian Yu Yin Li Libin Hu Guoyang Zhou Feng Yan Gao Chen Jianru Li | 2021 | Neuroscience Bulletin2021,37,10: | 4 |
| 5 | Overview of research on agricultural robots in China显示文摘As the representation of new concept agricultural machinery,agricultural robots possess great advantages of improving agricultural productivity,enhancing production environment and solving the problem of labor shortage.Therefore,the strategy for application of agricultural robots and precision agriculture to improve the intelligence and information level of agriculture is the inevitable trend for China’s agriculture in the twentieth century.Based on the developmental status of agricultural robots in China,the agricultural robots are categorized and the performances,structures and characteristics of various agricultural robots such as vegetable grafting robots,transplanting robots,spraying robots,mowing robots,harvesting robots,grading and detecting robots are amply introduced.It can be seen that vegetable grafting robots,spraying robots,harvesting robots,grading and detecting robots have already been put into production while others are still at experimental stage.At present,there are several problems such as low popularization,great limitations,high cost and low intelligence,which greatly restrict the development of agricultural robots in China.Thus,open agricultural robot system with good expansibility,generality and flexibility should be developed and adopted to decrease its cost and shorten developing cycle.The mechanical structure of robots should also be designed as simply as possible.Finally,multi-robot system would become another important development direction of agricultural robots in the future. | Zhang Libin Yang Qinghua Bao Guanjun Wang Yan Qi Liyong Gao Feng Xu Fang | 2008 | International Journal of Agricultural and Biological Engineering2008,1,1: | 4 |
| 6 | Static Imaging Fourier Transform Spectrometer显示文摘 | Xiang Libin Gao Z An B Q | 1998 | SPIE1998,3502,: | 1 |
| 7 | A joint call for actions to advance taxonomy in China显示文摘Taxonomy plays an important role in understanding the origin, evolution, and ecological functionality of biodiversity. There are large number of unknown species yet to be described by taxonomists, which together with their ecosystem services cannot be effectively protected prior to description. Despite this, taxonomy has been increasingly underrated insufficient funds and permanent positions to retain young talents. Further, the impact factordriven evaluation systems in China exacerbate this downward trend, so alternative evaluation metrics are urgently necessary. When the current generation of outstanding taxonomists retires,there will be too few remaining taxonomists left to train the next generation. In light of these challenges, all co-authors worked together on this paper to analyze the current situation of taxonomy and put out a joint call for immediate actions to advance taxonomy in China. | Chaodong Zhu Arong Luo Ming Bai Michael COrr Zhonge Hou Siqin Ge Jun Chen Yibo Hu Xuming Zhou Gexia Qiao Hongzhi Kong Limin Lu Xiaohua Jin Lei Cai Xinli Wei Ruilin Zhao Wei Miao Qingfeng Wang Zhongli Sha Qiang Lin Meng Qu Jianping Jiang Jiatang Li Jing Che Xuelong Jiang Xiaoyong Chen Lianming Gao Zongxin Ren Chunlei Xiang Shixiao Luo Donghui Wu Dong Liu Yanqiong Peng Tao Su Chenyang Cai Tianqi Zhu Wanzhi Cai Xingyue Liu Hu Li Huaijun Xue Zhen Ye Xuexin Chen Pu Tang Shujun Wei Hong Pang Qiang Xie Feng Zhang Feng Zhang Xianjin Peng Aibing Zhang Taiping Gao Changfa Zhou Chen Shao Libin Ma Zhaoming Wei Yunxia Luan Ziwei Yin Wu Dai Cong Wei Xiaolei Huang Jingxian Liu Xiangsheng Chen Tianci Yi Zhisheng Zhang Zhulidezi Aishan Qin Li Hongying Hu | 2022 | Zoological Systematics2022,47,3: | 1 |
| 8 | Ubiquitylation of Autophagy Receptor Optineurin by HACE1 Activates Selective Autophagy for Tumor Suppression显示文摘 | Zhengzhao Liu Peng Chen Hong Gao Yu Gu Jiao Yang Hong Peng Xingxing Xu Haifeng Wang Meiqiang Yang Xiaoying Liu Libin Fan Shiyao Chen Jian Zhou Yihong Sun Kangchen Ruan Shuqun Cheng Masaaki Komatsu Eileen White Lin Li Hongbin Ji Daniel Finley Ronggui Hu | 2014 | Cancer Cell2014,,: | 1 |
| 9 | Tuning the phase evolution pathway of LiNi_(0.5)Mn_(1.5)O_(4) synthesis from binary intermediates to ternary intermediates with thermal regulating agent显示文摘Transition metal cation ordering is essential for controlling the electrochemical performance of cubic spinel LiNi_(0.5)Mn_(1.5)O_(4)(LNMO),which is conventionally adjusted by optimizing the high temperature sintering and annealing procedures.In this present work,multiple characterization techniques,including 6,7Li NMR,XRD and HRTEM,have been combined to trace the phase transformation and morphology evolution during synthesis.It has been illustrated that simultaneous formation of LiMn_(2)O_(4)(LMO)and LiNiO_(2)(LNO)binary oxides and their conversion into highly reactive LixNi^(3+)_(y)Mn_(3.5+)_(z)O ternary intermediate is a thermal dynamically difficult but crucial step in the synthesis of LNMO ternary oxide.A new strategy of modifying the intermediates formation pathway from binary mode to ternary mode using thermal regulating agent has been adopted.LNMO synthesized with thermal regulating agent exhibits supreme rate capability,long-cycling performance(even at elevated temperature)and excellent capacity efficiency.At a high rate of 100 C,the assembled battery delivers a discharge capacity of 99 mAh g^(-1).This study provides a way to control the formation pathway of complex oxides using thermal regulating agent. | Libin Wu Hua Huo Qun Wang Xucai Yin Shu Guo Jiajun Wang Chunyu Du Pengjian Zuo Geping Yin Yunzhi Gao | 2022 | Journal of Energy Chemistry2022,31,2: | 1 |
| 10 | Transcriptome analysis of the roots at early and late seedling stages using Illumina paired-end sequencing and development of EST-SSR markers in radish显示文摘 | Shufen Wang Xiufeng Wang Qiwei He Xianxian Liu Wenling Xu Libin Li Jianwei Gao Fengde Wang | 2012 | Plant Cell Reports2012,,8: | 1 |
| 11 | Comparing different spatial interpolation methods to predict the distribution of fishes:A case study of Coilia nasus in the Changjiang River Estuary显示文摘Spatial-temporal distribution of marine fishes is strongly influenced by environmental factors.To obtain a more continuous distribution of these variables usually measured by stationary sampling designs,spatial interpolation methods(SIMs)is usually used.However,different SIMs may obtain varied estimation values with significant differences,thus affecting the prediction of fish spatial distribution.In this study,different SIMs were used to obtain continuous environmental variables(water depth,water temperature,salinity,dissolved oxygen(DO),p H,chlorophyll a and chemical oxygen demand(COD))in the Changjiang River Estuary(CRE),including inverse distance weighted(IDW)interpolation,ordinary Kriging(OK)(semivariogram model:exponential(OKE),Gaussian(OKG)and spherical(OKS))and radial basis function(RBF)(regularized spline function(RS)and tension spline function(TS)).The accuracy and effect of SIMs were cross-validated,and two-stage generalized additive model(GAM)was used to predict the distribution of Coilia nasus from 2012 to 2014 in CRE.DO and COD were removed before model prediction due to their autocorrelation coefficient based on variance inflation factors analysis.Results showed that the estimated values of environmental variables obtained by the different SIMs differed(i.e.,mean values,range etc.).Cross-validation revealed that the most suitable SIMs of water depth and chlorophyll a was IDW,water temperature and salinity was RS,and p H was OKG.Further,different interpolation results affected the predicted spatial distribution of Coilia nasus in the CRE.The mean values of the predicted abundance were similar,but the differences between and among the maximum value were large.Studies showed that different SIMs can affect estimated values of the environmental variables in the CRE(especially salinity).These variations further suggest that the most applicable SIMs to each variable will also differ.Thus,it is necessary to take these potential impacts into consideration when studying the relationship between the spatial distribution of fishes and environmental changes in the CRE. | Shaoyuan Pan Siquan Tian Xuefang Wang Libin Dai Chunxia Gao Jianfeng Tong | 2021 | Acta Oceanologica Sinica2021,40,8: | 1 |
| 12 | Physical Activity,Sedentary Behavior,and the Risk of Cardiovascular Disease in Type 2 Diabetes Mellitus Patients:The MIDiab Study显示文摘The aim of this study was to explore the associations of moderate-to-vigorous-intensity physical activity(MVPA)time and sedentary(SED)time with a history of cardiovascular disease(CVD)and multifactorial(i.e.,blood pressure(BP),body mass index(BMI),low-density lipoprotein cholesterol(LDL-C),and glycated hemoglobin A1c(HbA1c))control status among type 2 diabetes mellitus(T2DM)patients in China.A cross-sectional analysis of 9152 people with type 2 diabetes from the Multifactorial Intervention on Type 2 Diabetes(MIDiab)study was performed.Patients were grouped according to their self-reported MVPA time(low,<150 min·week−1;moderate,150 to<450 min·week−1;high,≥450 min·week−1)and SED time(low,<4 h·d–1;moderate,4 to<8 h·d–1;high,≥8 h·d–1).Participants who self-reported a history of CVD were identified as having a CVD risk.Odds ratios(ORs)and 95%confidence intervals(CIs)of CVD risk and multifactorial control status associated with MVPA time and SED time were estimated using mixed-effect logistic regression models,adjusting for China’s geographical region characteristics.The participants had a mean±standard deviation(SD)age of(60.87±8.44)years,44.5%were women,and 25.1%had CVD.After adjustment for potential confounding factors,an inverse association between high MVPA time and CVD risk that was independent of SED time was found,whereas this association was not observed in the moderate-MVPA group.A higher MVPA time was more likely to have a positive effect on the control of BMI.Compared with the reference group(i.e.,those with MVPA time≥450 min·week−1 and SED time<4 h·d–1),CVD risk was higher in the low-MVPA group:The OR associated with an SED time<4 h·d–1 was 1.270(95%CI,1.040–1.553)and that associated with an SED time≥8 h·d–1 was 1.499(95%CI,1.149–1.955).We found that a high MVPA time(i.e.,≥450 min·week−1)was associated with lower odds of CVD risk regardless of SED time among patients with T2DM. | Yafei Wu Guijun Qin Guixia Wang Libin Liu Bing Chen Qingbo Guan Zhongshang Yuan Xu Hou Ling Gao Chao Xu Haiqing Zhang Xu Zhang Qiu Li Yongfeng Song Fei Jing Shizhan Ma Shanshan Shao Meng Zhao Qingling Guo Nanwei Tong Hongyan Zhao Xiaomin Xie Chao Liu Zhongyan Shan Zhifeng Cheng Xuefeng Yu Shulin Chen Tao Yang Yangang Wang Dongmei Li Zhaoli Yan Lixin Guo Qiuhe Ji Wenjuan Wang Jiajun Zhao | 2023 | Engineering2023,,1: | 1 |
| 13 | A novel nomogram for prognosis stratification in salvage liver transplantation:a national-wide study with propensity score matching analysis in China显示文摘Background:Salvage liver transplantation(SLT)has been reported to be an efficient treatment option for patients with recurrent hepatocellular carcinoma(HCC)after liver resection(LR).However,for recipients who underwent liver transplantation(LT)due to recurrent HCC after LR in China,the selection criteria are not well established.Methods:In this study,data from the China Liver Transplant Registry(CLTR)of 4,244 LT performed from January 2015 to December 2019 were examined,including 3,498 primary liver transplantation(PLT)and 746 SLT recipients.Propensity score matching(PSM)analysis was used to minimize between-group imbalances.The overall survival(OS)and disease-free survival(DFS)between PLT and SLT in recipients fulfilling the Milan or Hangzhou criteria were compared based on the multivariate analysis,nomograms were plotted to further classify the SLT group into low-and high-risk groups.Results:In this study,the 1-,3-and 5-year OS and DFS of SLT recipients fulfilling Milan criteria(OS,P=0.01;DFS,P<0.001)or Hangzhou criteria(OS,P=0.03;DFS,P=0.003)were significantly reduced when compared to that of PLT group after PSM analysis.Independent risk factors,including preoperative transarterial chemoembolization(TACE),alpha fetoprotein(AFP)level,tumor maximum size and tumor total diameter were selected to draw a prognostic nomogram.The low-risk SLT recipients(1-year,95.34%;3-year,84.26%;5-year,77.20%)showed a comparable OS with PLT recipients fulfilling Hangzhou criteria (P=0.107). Conclusions: An optimal nomogram model for prognosis stratification and clinical decision guidance of SLT was established. The low-risk SLT recipients based on the nomograms showed comparable survival with those fulfilling Hangzhou criteria in PLT group. | Kai Wang Fengqiang Gao Siyi Dong Jialu Ding Libin Dong Chuxiao Shao Zhoucheng Wang Xun Qiu Xuyong Wei Zhengxin Wang Jiayin Yang Qiang Xia Shusen Zheng Xiao Xu | 2023 | Hepatobiliary Surgery and Nutrition2023,12,6: | 0 |
| 14 | Recognition and Visualization of Lithography Defects based on Transfer Learning显示文摘Yield control in the integrated circuit manufacturing process is very important,and defects are one of the main factors affecting chip yield.As the process control becomes more and more critical and the critical dimension becomes smaller and smaller,the identification and location of defects is particularly important.This paper uses a machine learning algorithm based on transfer learning and two fine-tuned neural network models to realize the autonomous recognition and classification of defects even the data set is small,which achieves 94.6%and 91.7%classification accuracy.The influence of network complexity on classification result is studied at the same time.This paper also establishes a visual display algorithm of defects,shows the process of extracting the deep-level features of the defective image by the network,and then analyze the defect features.Finally,the Gradient-weighted Class Activation Mapping technology is used to generate defect heat maps,which locate the defect positions and probability intensity effects.This paper greatly expands the application of transfer learning in the field of integrated circuit lithography defect recognition,and greatly improves the friendliness of defect display. | Bo Liu Pengzheng Gao Libin Zhang Jiajin Zhang Yuhong Zhao Yayi Wei | 2020 | Journal of Microelectronic Manufacturing2020,3,3: | 0 |
| 15 | Ka-band broadband filtering packaging antenna based on through-glass vias (TGVs)显示文摘This work presents a novel design of Ka-band(33 GHz)filtering packaging antenna(FPA)that features broadband and great filtering response,and is based on glass packaging material and through-glass via(TGV)technologies.Compared to traditional packaging materials(printed circuit board,low temperature co-fired ceramic,Si,etc.),TGVs are more suitable for miniaturization(millimeter-wave three-dimensional(3D)packaging devices)and have superior microwave performance.Glass substrate can realize 3D high-density interconnection through bonding technology,while the coefficient of thermal expansion(CTE)matches that of silicon.Furthermore,the stacking of glass substrate enables high-density interconnections and is compatible with micro-electro-mechanical system technology.The proposed antenna radiation patch is composed of a patch antenna and a bandpass filter(BPF)whose reflection coefficients are almost complementary.The BPF unit has three pairs ofλg/4 slots(defect microstrip structure,DMS)and twoλg/2 U-shaped slots(defect ground structure,DGS).The proposed antenna achieves large bandwidth and high radiation efficiency,which may be related to the stacking of glass substrate and TGV feed.In addition,the introduction of four radiation nulls can effectively improve the suppression level in the stopband.To demonstrate the performance of the proposed design,a 33-GHz broadband filtering antenna is optimized,debugged,and measured.The antenna could achieve|S11|<-10 dB in 29.4‒36.4 GHz,and yield an impedance matching bandwidth up to 21.2%,with the stopband suppression level at higher than 16.5 dB.The measurement results of the proposed antenna are a realized gain of~6.5 dBi and radiation efficiency of~89%. | Zhen FANG Jihua ZHANG Libin GAO Hongwei CHEN Wenlei LI Tianpeng LIANG Xudong CAI Xingzhou CAI Weicong JIA Huan GUO Yong LI | 2023 | Frontiers of Information Technology & Electronic Engineering2023,24,6: | 0 |
| 16 | Ultrastructure Developments During Spermiogenesis in Polydora ciliata(Annelida: Spionidae),a Parasite of Mollusca显示文摘Spionid worms of Polydora ciliata inhabit the shells of many commercially important bivalves and cause disease in molluscan aquaculture. Their sperm structure is closely related to their fertilization method. To give an insight into the sperm structure and spermatogenesis, ultrastructure details of the subcellular components of germ cells during spermiogenesis of Polydora ciliata are detected by transmission electron microscopy(TEM). In P. ciliata, during spermiogenesis, chromatin is regularly arranged as dense fibrils and becomes more condensed when the nucleus elongates. Microtubules do not surround the nucleus during its elongation. The Golgi phase is characterized by the formation of proacrosomal granules within the Golgi apparatus. The proacrosomal granules fuse to form a single, spherical acrosomal vesicle that migrates to the anterior pole of the cell. At the time of nuclear condensation, mitochondria become reduced in number but increased in size, causing deep indentation at the base of the nucleus. The mid-piece has a few mitochondria. The cap phase includes the spreading of the acrosomal granule over the surface of the nucleus of the differentiating spermatid. The acrosomal phase of spermiogenesis is typically associated with changes in the shape of the nucleus, acrosome and tail. The relationship of sperm ultrastructure to spermiogenesis in spionidae species was discussed. | GAO Yan ZHANG Tao ZHANG Libin QIU Tianlong XUE Dongxiu YANG Hongsheng | 2014 | Journal of Ocean University of China2014,13,6: | 0 |
| 17 | Population Study Strategies for Mutagenic Effects of Heavy Ion Beam Irradiation显示文摘In order to obtain more accurate mutagenic effects,we need to understand the population mutated by heavy ion beam(HIB)irradiation as comprehensively as possible. | Guo Xiaopeng Zhang Miaomiao Gao Yue Lu Dong Li Wenjian Zhou Libin | 2019 | IMP & HIRFL Annual Report2019,,1: | 0 |
| 18 | Chinese herbal medicine combined with cognitive–behavioural therapy for avoidant paruresis:a controlled trial显示文摘Background Avoidant paruresis is a common clinical condition in urology and psychosomatic medicine.However,it has limited treatment options that are safe and effective with few side effects.Aims Our study aimed to investigate the effectiveness and safety of the Chinese herbal Yangxin Tongquan decoction combined with cognitive-behavioural therapy(CBT)for avoidant paruresis.Methods Sixty-eight patients with avoidant paruresis were divided into a treatment group(33 patients)and a control group(35 patients).The control group was assigned 10 weeks of CBT and systematic desensitisation.In addition to CBT and systematic desensitisation,the treatment group was given the Chinese herbal Yangxin Tongquan decoction during the 10-week study.The Shy Bladder Syndrome Scale(SBS)and the Self-rating Anxiety Scale(SAS)were administered before and after treatment to measure any change.Results The overall efficacy in the treatment group(n=30)was 80.0%vs 62.5%in the control group(n=33).Comparing pretreatment and post-treatment measures,both groups showed improvement in SBS scores and SAS scores(treatment group:t_((SBS))=8.397,p_((SBS))<0.001,t_((SAS))=8.216,p_((SAS))<0.001;control group:t_((SBS))=6.802,p_((SBS))<0.001,t_((SAS))=5.171,p_((SAS))<0.001).Moreover,both groups’SBS and SAS scores changed significantly over time(SBS scores:F_(time)=118.299,p<0.001;SAS scores:F_(time)=92.114,p<0.001).However,the treatment group performed better than the control group(SBS scores:F_(time*group)=5.709,p=0.020;SAS scores:F_(time*group)=7.235,p=0.009).Conclusions The Chinese herbal Yangxin Tongquan decoction combined with cognitive-behavioural psychotherapy positively affects the treatment of avoidant paruresis without significant adverse effects. | Shijie Liang Ying Zhou Chao Yu Xiang Gao Fangbin Ji Qianyuan Fang Zhihang Zhang Libin Yang Youkang Zhao Yuhui Zhao Renwu Yin Kaimin Chen Zheng Lu | 2023 | General Psychiatry2023,36,5: | 0 |
| 19 | LEAF项目建设状态报告显示文摘LEAF or the Low Energy heavy ion Accelerator Facility is a multidiscipline heavy ion research platform under construction at IMP.It is a 5 year National Major Instruments Research Program supported by National Science Foundation of China(NSFC)started in 2015.Oriented to the frontier research in Material Sciences,Astrophysics,Atomic Physics and Highly Charged Ion Physics,LEAF has been designed and constructed with the state of the art technologies for low energy heavy ion acceleration.This facility features a 45 GHz ECR ion source FECR,a heavy ion CW 4-vane radio frequency quadruple accelerator LRFQ,300 kV HV platform,LEBT,MEBT and several dedicated experimental terminals. | Sun Liangting Yang Yao Lu Liang Guo Yuhui Liu Xiaojun Jing Long Li Libin Sun Liepeng Gao Zheng Ma Hongyi Jin Xiaofeng Zhai Yuhan Xu Xianbo Shi Longbo Xing Chaochao Liu Yuting Zhu Tieming Hu Qiang Zhang Peng Zhang Xuezhen Fang Xing Jia Huan Zhang Bin Liu Chaodong Ma Yingming Zhao Bo Wu Beimin Zhu Li Li Jiaqing Lu Wang Guo Junwei Li Chenxing Wang Zhijun Dou Weiping Wu Junxia Zhang Zimin Yao Qinggao Wu Wei Zhou Zhongzu Zhang Junhui Ma Lizhen He Yuan Zhao Hongwei | 2018 | IMP & HIRFL Annual Report2018,,1: | 0 |
| 20 | Versatile flexible micelles integrating mucosal penetration and intestinal targeting for effectively oral delivery of paclitaxel显示文摘The extremely low bioavailability of oral paclitaxel(PTX)mainly due to the complicated gastrointestinal environment,the obstruction of intestinal mucus layer and epithelium barrier.Thus,it is of great significance to construct a coordinative delivery system which can overcome multiple intestinal physicochemical obstacles simultaneously.In this work,a high-density PEGylation-based glycocholic acid-decorated micelles(PTX@GNPs)was constructed by a novel polymer,9-Fluorenylmethoxy carbonyl-poly ethylene glycocholic acid(Fmoc-PEG-GCA).The Fmoc motif in this polymer could encapsulate PTX viaπ-πstacking to form the core of micelles,and the low molecular weight and non-long hydrophobic chain of Fmoc ensures the high-density of PEG.Based on this versatile and flexible carriers,PTX@GNPs possess mucus trapping escape ability due to the flexible PEG,and excellent intestine epithelium targeting attributed to the high affinity of GCA with apical sodium-dependent bile acid transporter.The in vitro and in vivo results showed that this oral micelle could enhance oral bioavailability of PTX,and exhibited similar antitumor efficacy to Taxol injection via intravenous route.In addition,oral PTX@GNPs administered with lower dosage within shorter interval could increase in vivo retention time of PTX,which supposed to remodel immune microenvironment and enhance oral chemotherapy efficacy by synergistic effect. | Chao Liu Wei Liu Yanhong Liu Hongxia Duan Liqing Chen Xintong Zhang Mingji Jin Minhu Cui Xiuquan Quan Libin Pan Jiachun Hu Zhonggao Gao Yan Wang Wei Huang | 2023 | Acta Pharmaceutica Sinica B2023,13,8: | 0 |