检索结果-南通市图书馆

Enhanced uptake and anti-maturation effect of celastrol-loaded mannosylated liposomes on dendritic cells for psoriasis treatment

引用

Acta Pharmaceutica Sinica B 2022年第1期12卷 339-352页

作者： Long Xi zibei lin Fen Qiu Shaokui Chen Ping Li Xin Chen Zhenping Wang Ying Zheng State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoMacao 999078China Beijing Hospital of Traditional Chinese Medicine Affiliated with Capital Medical UniversityBeijing 100050China Department of Dermatology School of MedicineUniversity of CaliforniaSan DiegoCA 92093USA

Psoriasis is an autoimmune skin disease in which dendritic cells(DCs) trigger the progression of psoriasis by complex interactions with keratinocytes and other immune cells. In the present study,we aimed to load celastrol, an anti-inflammatory ingredient isolated from Chinese herbs, on mannosylated liposomes to enhance DC uptake as well as to induce DC tolerance in an imiquimod-induced psoriasis-like mouse model. Mannose was grafted onto liposomes to target mannose receptors on DCs. The results demonstrated that compared with unmodified liposomes, DCs preferred to take up more fluorescence-labeled mannosylated liposomes. After loading celastrol into mannose-modified liposomes,they effectively inhibited the expression of maturation markers, including CD80, CD86 and MHC-II, on DCs both in vitro and in vivo. Additionally, after intradermal injection with a microneedle, celastrolloaded mannose-modified liposomes(CEL-MAN-LPs) achieved a superior therapeutic effect compared with free drug and celastrol-loaded unmodified liposomes in the psoriasis mouse model in terms of the psoriasis area and severity index, histology evaluation, spleen weight, and expression of inflammatory cytokines. In conclusion, our results clearly revealed that CEL-MAN-LPs was an effective formulation for psoriasis treatment and suggested that this treatment has the potential to be applied to other inflammatory diseases triggered by activated DCs.

关键词： Psoriasis Celastrol Mannose Liposome Anti-maturation Dendritic cells Microneedle Inflammation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Uptake and traffcking of different sized PLGA nanoparticles by dendritic cells in imiquimod-induced psoriasis-like mice model

引用

Acta Pharmaceutica Sinica B 2021年第4期11卷 1047-1055页

作者： zibei lin Long Xi Shaokui Chen Jinsong Tao Yan Wang Xin Chen Ping Li Zhenping Wang Ying Zheng State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoMacao 999078China Beijing Hospital of Traditional Chinese Medicine Affliated with Capital Medical UniversityBeijing 100050China Department of Dermatology School of MedicineUniversity of CaliforniaLa JollaSan DiegoCA 92093USA

Psoriasis is an autoimmune infammatory disease,where dendritic cells(DCs)play an important role in its *** our previous work,we have demonstrated that topical delivery of curcumin-loaded poly(lactic-co-glycolic acid)(PLGA)nanoparticles(NPs)could treat Imiquimod(IMQ)-induced psoriasis-like *** objective of this study is to further elucidate biofate of PLGA NPs after intradermal delivery including DCs uptake,and their further traffcking in psoriasis-like mice model by using fuorescence ***-sized DiO/DiI-loaded PLGA NPs of 50±4.9 nm(S-NPs)and 226±7.8 nm(L-NPs)were fabricated,*** vitro cellular uptake results showed that NPs could be internalized into DCs with intact form,and DCs preferred to uptake larger ***,in vivo study showed that L-NPs were more captured by DCs and NPs were frstly transported to skindraining lymph nodes(SDLN),then to spleens after 8 h injection,whereas more S-NPs were transported into SDLN and ***,FRET imaging showed more structurally intact L-NPs distributed in skins and lymph *** conclusion,particle size can affect the uptake and traffcking of NPs by DCs in skin and lymphoid system,which needs to be considered in NPs tailing to treat infammatory skin disease like psoriasis.

关键词： Psoriasis PLGA nanoparticles Fluorescence Dendritic cells Fluorescence resonance energy transfer Lymphoid organs Uptake and traffcking Biofate

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Alter fecal microbiota composition and relieve symptom in depression-like rats after treatment by inulin-type fructo-oligosaccharides in Morinda Officinalis

Alter fecal microbiota composition and relieve symptom in de...

引用

2018年第十二届中国药物制剂大会

作者：池连娣 zibei lin Guoxing Huang W.L.Wendy Hsiao Jiwen Zhang Ying Zheng State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical Sciences University of Macau State Key Laboratory of Quality Research in Chinese Medicine Macau University of Science and Technology Center for Drug Delivery System Shanghai Institute of Materia Medica Chinese Academy of Sciences

Inulin-type fructooligosaccharides（FOS） purified from Morinda officinalis,with degrees of polymerization（DP） from 3 to 9, has been approved as the prescribed oral drug by CFDA in 2012 with the indications for mild and moderate depressive episode, while the bioprocess of this FOS mixtures are largely unknown. This work aimed to illustrate this bioprocess related to gut microbiota and intestine construction. The depression-like rat model was built by chronic unpredictable mild stress（CUMS） procedure for seven weeks, then verified by open field test（OFT） and sucrose preference test（SPT）. Under the three weeks’ treatment period, the fecal sample were collected at day 0, 15 and 22, and further analyzed the microbiota DNA composition using ERIC-PCR method. Hematoxylin and eosin（H＆E） staining was applied to investigate the gut epithelial morphology. Results showed that, rats with depression-like behaviors presented low SPT value（＜50%, p＜0.01） and low total travel distance in OFT test（p＜0.01）. Conversely, SPT value was increased（＞65%, p＜0.05） after treatments with FOS, indicating recovering the pleasant sensation. Meanwhile, in partial least square data analysis（PLS-DA） plot, differential modulations of normal and depressive rat model were observed at 0-day microbiota composition. Furthermore, while compared the 22-day plot, there were greatly changed the microbiota composition after treatments（fluoxetine, FOS-DP5 and FOS mixture）. In other side, the colon mucosa, intestinal villus（height and integrity） were severe damaged in intestine of depressive rat model. It was the intestinal inflammatory and severe damage happened in depression-like rats. However, intestinal micro-architecture abnormalities were restored and reversed by FOS treatment. Inferior to FOS, fluoxetine aroused intestinal irritation（cell necrosis, exfoliation and deep staining） on parts of treated rats. On balance, depression-like rat model has significant influence in behavior, intestine structure and micro

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

A fast forward computational method for nuclear measurement using volumetric detection constraints

引用

Nuclear Science and Techniques 2024年第2期35卷 47-63页

作者： Qiong Zhang lin-Lv lin University of Electronic Science and Technology of China Chengdu 610000China

Owing to the complex lithology of unconventional reservoirs,field interpreters usually need to provide a basis for interpretation using logging simulation *** the various detection tools that use nuclear sources,the detector response can reflect various types of information of the *** Monte Carlo method is one of the primary methods used to obtain nuclear detection responses in complex ***,this requires a computational process with extensive random sampling,consumes considerable resources,and does not provide real-time response ***,a novel fast forward computational method(FFCM)for nuclear measurement that uses volumetric detection constraints to rapidly calculate the detector response in various complex environments is ***,the data library required for the FFCM is built by collecting the detection volume,detector counts,and flux sensitivity functions through a Monte Carlo ***,based on perturbation theory and the Rytov approximation,a model for the detector response is derived using the flux sensitivity function method and a one-group diffusion *** environmental perturbation is constrained to optimize the model according to the tool structure and the impact of the formation and borehole within the effective detection ***,the method is applied to a neutron porosity tool for *** various complex simulation environments,the maximum relative error between the calculated porosity results of Monte Carlo and FFCM was 6.80%,with a rootmean-square error of 0.62 *** field well applications,the formation porosity model obtained using FFCM was in good agreement with the model obtained by interpreters,which demonstrates the validity and accuracy of the proposed method.

关键词： Nuclear measurement Fast forward computation Volumetric constraints

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Enhancing Safety in Autonomous Vehicle Navigation:An Optimized Path Planning Approach Leveraging Model Predictive Control

引用

Computers, Materials & Continua 2024年第9期80卷 3555-3572页

作者： Shih-lin lin Bo-Chen lin Graduate Institute of Vehicle Engineering National Changhua University of EducationChanghua50007TaiwanChina

This paper explores the application of Model Predictive Control(MPC)to enhance safety and efficiency in autonomous vehicle(AV)navigation through optimized path *** evolution of AV technology has progressed rapidly,moving from basic driver-assistance systems(Level 1)to fully autonomous capabilities(Level 5).Central to this advancement are two key functionalities:Lane-Change Maneuvers(LCM)and Adaptive Cruise Control(ACC).In this study,a detailed simulation environment is created to replicate the road network between Nantun andWuri on National Freeway No.1 in *** MPC controller is deployed to optimize vehicle trajectories,ensuring safe and efficient *** onboard sensors,including vehicle cameras and millimeterwave radar,are used to detect and respond to dynamic changes in the surrounding environment,enabling real-time decision-making for LCM and *** simulation resultshighlight the superiority of the MPC-based approach in maintaining safe distances,executing controlled lane changes,and optimizing fuel ***,the MPC controller effectively manages collision avoidance,reduces travel time,and contributes to smoother traffic flow compared to traditional path planning *** findings underscore the potential of MPC to enhance the reliability and safety of autonomous driving in complex traffic *** research will focus on validating these results through real-world testing,addressing computational challenges for real-time implementation,and exploring the adaptability of MPC under various environmental *** study provides a significant step towards achieving safer and more efficient autonomous vehicle navigation,paving the way for broader adoption of MPC in AV systems.

关键词： Autonomous driving model predictive control(MPC) lane change maneuver(LCM) adaptive cruise control(ACC)

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Existence of a Meridional Curve in Closed Incompressible Surfaces in Fully Alternating link Complements

引用

Chinese Annals of Mathematics,Series B 2024年第1期45卷 73-80页

作者： Wei lin School of Mathematical Sciences Dalian University of TechnologyDalian 116024LiaoningChina

Menasco showed that a closed incompressible surface in the complement of a non-split prime alternating link in S^(3) contains a circle isotopic in the link complement to a meridian of the *** on this result,he was able to argue the hyperbolicity of non-split prime alternating links in *** et *** that if F■S×I\L is an essential torus,then F contains a circle which is isotopic in S×I\L to a meridian of *** author generalizes his result as follows:Let S be a closed orientable surface,L be a fully alternating link in S×I\If F ■ S×I\L is a closed essential surface,then F contains a circle which is isotopic in S×I\L to a meridian of L.

关键词： Fully alternating Incompressible surfaces Meridionally incompressible

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Adaptive admittance tracking control for interactive robot with prescribed performance

引用

Journal of Systems Engineering and Electronics 2024年第2期35卷 444-450页

作者： MENG Qingrui lin Yan School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100190China College of Electrical Engineering and Automation Shandong University of Science and TechnologyQingdao 266590China

An adaptive control approach is presented in this paper for tracking desired trajectories in interactive manipulators. The controller design incorporates prescribed performance functions (PPFs) to improve dynamic performance. Notably, the performance of the output error is confined in an envelope characterized by exponential convergence, leading to convergence to zero. This feature ensures a prompt response from admittance control and establishes a reliable safety framework for interactions. Simulation results provide practical insights,demonstrating the viability of the control scheme proposed in this paper.

关键词： prescribed performance admittance control adaptive control robots

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

VOC emitted by biopharmaceutical industries:Source profiles,health risks,and secondary pollution

引用

Journal of Environmental Sciences 2024年第1期135卷 570-584页

作者： Jiawei Ma lin Li State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China National Engineering Laboratory for VOCs Pollution Control Material&Technology University of Chinese Academy of SciencesBeijing 101408China

The biopharmaceutical industry contributes substantially to volatile organic compounds(VOCs)emissions,causing growing concerns and social developmental *** study conducted an on-site investigation of the process-based emission of VOCs from three biopharmaceutical *** the workshops of the three enterprises,26 VOCs were detected,which could be sorted into 4 classes:hydrocarbons,aromatic hydrocarbons,oxygen-containing compounds,and nitrogen-containing *** were the main components of waste gases,accounting for 44.13%-77.85%of the overall ***-based source profiles were compiled for each process unit,with the fermentation and extraction units of tiamulin fumarate being the main source of VOC *** heptanone,vinyl acetate,diethylamine,propylene glycol methyl ether(PGME),and benzene were screened as priority pollutants through a fuzzy comprehensive evaluation *** level concentration simulation results of the Gauss plume diffusion model demonstrated that the diffusivity of VOCs in the atmosphere was relatively high,indicating potential non-carcinogenic and carcinogenic risks 1.5-2 km ***,the process-based formation potentials of ozone and secondary organic aerosols(SOAs)were determined and indicated that N-methyl-2-pyrrolidone,dimethyl heptanone,and PGME should be preferentially controlled to reduce the ozone formation potential,whereas the control of benzene and chlorobenzene should be prioritized to reduce the generation of *** results provide a basis for understanding the characteristics of VOC emission by biopharmaceutical industries and their diffusion,potentially allowing the development of measures to reduce health risks and secondary pollution.

关键词： Biopharmaceutical Volatile organic compound Priority pollutant Exposure risk Secondary pollution

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

No Reference Image Sharpness Assessment Based on Global Color Difference Variation

引用

Chinese Journal of Electronics 2024年第1期33卷 293-302页

作者： Chenyang SHI Yandan lin School of Artificial Intelligence Anhui Polytechnic University School of Mechanical Engineering Anhui Polytechnic University Department of Light Sources and Illuminating Engineering Fudan University Academy for Engineering & Technology Fudan University

Image quality assessment(IQA) model is designed to measure the image quality in consistent with subjective ratings by computational models. In this research, a valid no reference IQA(NR-IQA) model for color image sharpness assessment is proposed based on local color difference map in a color space. In the proposed model, the absolute color difference variation and relative color difference variation are combined to evaluate sharpness in YIQ color space(a color coordinate system for the development of the United States color television system). The difference between sharpest and blurriest spot of an image is represented by the absolute color difference variation, and relative color difference variation expresses the variation in the image content. Extensive experiments are performed on five publicly available benchmark synthetic blur databases and two real blur databases, and the results prove that the proposed model work better than the other state-of-the-art and latest NR-IQA models for the prediction accuracy on blurry images. Besides, the model maintains the lowest computational complexity.

关键词： Image quality TV Image color analysis Databases Computational modeling Color Predictive models

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Investigations of Water Flow Behaviors Induced by Local Temperature Variations through a Single Rough Fracture for the Enhanced Geothermal Systems

引用

Journal of Thermal Science 2024年第3期33卷 1055-1064页

作者： LI Jiawei YE lin Department of Energy and Power Engineering Tsinghua UniversityBeijing100084China School of Power and Energy Northwestern Polytechnical UniversityXi’an710072China

In recent years,Enhanced Geothermal System(EGS)technologies have been applied to the geothermal resources production in the Hot Dry Rock(HDR).The core of EGS technologies is to adopt hydraulic fracturing in the reservoir to create a connected network of discrete fractures with the consideration of water as a working fluid for hydraulic fracturing and heat *** paper investigates the characteristics of water flow behaviors through a single rough fracture under different temperature and pressure conditions.A single fracture model with rough fracture surfaces is constructed and then characterized,and influences of the anisotropic factor on the average tortuosity and frictional resistance coefficient of water flow through a single fracture with rough surfaces have been compared and *** consideration of other impacting factors(temperature,pressure,fracture roughness),the impact of mass flow rate has also been *** simulation results present that changes of average tortuosity for water flow through a single rough facture are mainly affected by *** can be observed that higher temperature leads to larger average tortuosity but the frictional resistance coefficient shows an opposite *** for pressure conditions,it is found that effects of pressure on average tortuosity and frictional resistance coefficient is very small,which can be neglected under high pressure ***,the average tortuosity shows a progressively linear relationship with the mass flow *** the contrary,the frictional resistance coefficient has a negative relationship with the mass flow *** is revealed that when the mass flow rate reaches a critical point,the influences of temperature on the frictional resistance coefficient will be *** of single rough fractures with different anisotropic factors show that values of average tortuosity and frictional resistance coefficient have positive relationships with the increase

关键词： single rough fracture tortuosity frictional resistance enhanced geothermal system

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：