检索结果-南通市图书馆

Targeting acute inflammation to complement spinal cord repair

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2015年第10期10卷 1596-1598页

作者： Faith H.Brennan Marc J.Ruitenberg School of Biomedical Sciences The University of Queensland Queensland Brain institute The University of Queensland Trauma Critical Care and Recovery Brisbane Diamantina Health Partners

Immune effector mechanisms play key roles in the progressive（secondary）neurodegenerative changes that follow spinal cord injury（SCI）.In our recent paper（Brennan et al.,2015）,we showed that the inflammatory response to SCI includes rapid and robust activation of the innate immune complement system, with tissue levels of complement component 5a （C5a - an activation product generated by the proteolysis of complement factor 5 （C5）） peaking 12 to 24 hours post-iniurv.

关键词： SCI Targeting acute inflammation to complement spinal cord repair

CIS controls the functional polarization of GM-CSF-derived macrophages

在线全文

学校读者我要写书评

暂无评论

Cellular & Molecular Immunology 2023年第1期20卷 65-79页

作者： Shengbo Zhang Jai Rautela Naiara G.Bediaga Tatiana B.Kolesnik Yue You Junli Nie Laura F.Dagley Justin Bedo Hanqing Wang Li Sun Robyn Sutherland Elliot Surgenor Nadia Iannarella Rhys Allan Fernando Souza-Fonseca-Guimaraes Yi Xie Qike Wang Yuxia Zhang Yuekang Xu Stephen L.Nutt Andrew M.Lew Nicholas D.Huntington Sandra E.Nicholson Michaël Chopin Yifan Zhan Walter and Eliza Hall institute of Medical Research ParkvilleVICAustralia Department of Medical Biology University of MelbourneParkvilleVICAustralia Department of Biochemistry and Molecular Biology Biomedicine Discovery InstituteMonash UniversityClaytonVICAustralia oNKo-Innate Pty Ltd Moonee PondsVICAustralia Department of Computing and Information Systems University of MelbourneParkvilleVICAustralia Department of Respiratory Medicine Guangzhou Institute of PediatricsGuangzhou Women and Children’s Medical CentreState Key Laboratory of Respiratory DiseasesGuangzhou Medical UniversityGuangzhouGuangdongChina College of Biological Science Anhui Normal UniversityHefeiChina University of Queensland diamantina institute University of QueenslandTranslational Research InstituteBrisbaneQLDAustralia Program in Cardiovascular and Metabolic Disorders Duke-NUS Medical SchoolDukeSingapore Drug Discovery Shanghai Huaota BiopharmShanghaiChina

The cytokine granulocyte-macrophage-colony stimulating factor (GM-CSF) possesses the capacity to differentiate monocytes into macrophages (MØs) with opposing functions, namely, proinflammatory M1-like MØs and immunosuppressive M2-like MØs. Despite the importance of these opposing biological outcomes, the intrinsic mechanism that regulates the functional polarization of MØs under GM-CSF signaling remains elusive. Here, we showed that GM-CSF-induced MØ polarization resulted in the expression of cytokine-inducible SH2-containing protein (CIS) and that CIS deficiency skewed the differentiation of monocytes toward immunosuppressive M2-like MØs. CIS deficiency resulted in hyperactivation of the JAK-STAT5 signaling pathway, consequently promoting downregulation of the transcription factor Interferon Regulatory Factor 8 (IRF8). Loss- and gain-of-function approaches highlighted IRF8 as a critical regulator of the M1-like polarization program. In vivo, CIS deficiency induced the differentiation of M2-like macrophages, which promoted strong Th2 immune responses characterized by the development of severe experimental asthma. Collectively, our results reveal a CIS-modulated mechanism that clarifies the opposing actions of GM-CSF in MØ differentiation and uncovers the role of GM-CSF in controlling allergic inflammation.

关键词： CIS GM-CSF Macrophage M2 M1

Direct observation of the CO_(2) formation and C–H consumption of carbon electrode in an aqueous neutral electrolyte supercapacitor by in-situ FTIR and Raman

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2022年第8期31卷 488-496,I0013页

作者： Murilo M.Amaral Victor Y.Yukuhiro Rafael Vicentini Alfredo C.Peterlevitz Leonardo M.Da Silva Pablo Fernandez Hudson Zanin Advanced Energy Storage Division State University of Campinas13083-852Av.Albert Einsten 400CampinasSPBrazil Chemistry institute State University of Campinas13083-970Josue de Castro StreetCampinasSPBrazil Department of Chemistry Laboratory of Fundamental and Applied ElectrochemistryFederal University of Jequitinhonha and Mucuri’s ValleyRodovia MGT 367km 5835000Alto da Jacuba39100-000DiamantinaMGBrazil Center for Innovation on New Energies University of Campinas13083-841 CampinasSão PauloBrazil

Electrical double-layer capacitors(EDLCs)consist of energy storage devices that present high-power and moderate energy *** electrolyte and electrode physicochemical properties are crucial for improving their overall energy storage ***,the stability of the EDLCs’materials is the primary focus of this *** energy storage depends on the specific capacitance,and also on the square of the maximum capacitive cell voltage(UMCV).Thus,electrodes with high specific surface area(SSA)and electrolytes with excellent electrochemical stability are commonly reported in the *** electrolytes are safer and green devices compared to other organic-based *** the other hand,their UMCVis reduced compared to other electrolytes(e.g.,organic-based and ionic liquids).In this sense,spanning the UMCVfor aqueous-based electrolytes is a’hot topic’***,the lack of protocols to establish reliable UMCVvalues has culminated in the publishing of several conflicting ***,we confirm that multiwalled carbon nanotubes(MWCNTs)housed in cells degrade and produce CO_(2) under abusive polarisation *** is probed by employing electrochemical techniques,in-situ FTIR and in-situ Raman *** these considerations,the current study uses spectro-electrochemical techniques to support the correct determination of the electrode and electrolyte stability conditions as a function of the operating electrochemical parameters.

关键词： Electrode and electrolyte stabilities In-situ FTIR CO_(2)formation Carbon degradation Supercapacitor Aqueous electrolytes Carbon nanotubes

Characterization and Evaluation of Bond Strength of Dental Polymer Systems Modified with Hydroxyapatite Nanoparticles

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science and Chemical Engineering 2013年第7期1卷 13-23页

作者： Vitor César Dumont Rafael Menezes Silva Luiz Edmundo Almeida-Júnior Juan Pedro Bretas Roa Adriana Maria Botelho Maria Helena Santos Department of Dentistry Federal University of Vales do Jequitinhonha and Mucuri Diamantina Brazil Department of Dentistry Federal University of Vales do Jequitinhonha and Mucuri Diamantina Brazil Advanced Biomaterial Center-BioMat UFVJM Diamantina Brazil Department of Dentistry Federal University of Vales do Jequitinhonha and Mucuri Diamantina Brazil Advanced Biomaterial Center-BioMat UFVJM Diamantina Brazil institute of Science and Technology UFVJM Diamantina Brazil

The study modifies an adhesive system with hydroxyapatite nanoparticles as load, characterizing it and evaluate the effectiveness of its bond to dental structure. The middle thirds of healthy premolar tooth crowns were obtained, and each crown was sectioned vertically, resulting in two sections. The sections were divided into ten groups (n = 15), in which resin composite restorations were simulated: (G1E and G1D) conventional adhesive system (SAC);(G2E and G2D) SAC modified with HAP;(G3E and G3D) Primer modified with HAP;(G4E and G4D) monocomponent adhesive system;(G5E and G5D) self-etching adhesive system. The specimens were submitted to the microshear test and characterization technique. There was statistically significant difference (Kruskal-Wallis) between the groups (p 0.01). G3 presented the highest bond strength to enamel (64.40 MPa, ±7.36) and dentin (39.59 MPa, ±21.46). The majority of specimens were found adhesive fractures. Bond strength to enamel and dentin of the primer modified with HAP of SAC showed higher values.

关键词： Nanostructures Composites Mechanical Properties Fracture

Future developments in teledermoscopy and total body photography

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Dermatology and Venereology 2019年第1期2卷 15-18页

作者： Katie J.Lee H.Peter Soyer Drmatology Research Centre The University of QueenslandThe University of Queensland Diamantina InstituteBrisbaneAustralia epartment of Dermatology Princess Alexandra HospitalBrisbaneAustralia

Introduction The development and increasing popularity of dermoscopy in recent decades has helped dermatologists and primary care providers to improve the diagnosis of skin lesions,especially skin tumors,and more recently inflammatory lesions as *** can now be used not only for diagnosis,but also to monitor the course of the disease and response to treatment for disorders as diverse as carcinomas,rosacea,psoriasis,lupus erythematosus,and porokeratosis[1].More recently still,teledermoscopy has expanded the reach of this useful technology,by using a digital dermoscope or standard digital camera with a dermoscopic lens attachment to capture images and send them to a teleconsultant.A variety of teledermoscopy platforms are available off the shelf,and can also be adapted to the organization's particular needs.

关键词： developments photography particular needs

Dendritic cell-derived IL-27 p28 regulates T cell program in pathogenicity and alleviates acute graft-versus-host disease

在线全文

学校读者我要写书评

暂无评论

Signal Transduction and Targeted Therapy 2022年第10期7卷 3955-3966页

作者： Huanle Gong Shoubao Ma Jia Chen Bingyu Yang Shuangzhu Liu Xin Liu Jingjing Han Xiaojin Wu Lei Lei Zhinan Yin Hongjian Sun Di Yu Haiyan Liu Yang Xu Depei Wu The First Affiliated Hospital of Soochow University National Clinical Research Center for Hematologic DiseasesJiangsu Institute of HematologyInstitute of Blood and Marrow TransplantationSoochow UniversitySuzhou 215123China Collaborative Innovation Center of Hematology Soochow UniversitySuzhou 215123China Department of Hematology The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’anShaanxi 710061China Zhuhai Precision Medical Center Zhuhai People’s Hospital(Zhuhai Hospital Affiliated with Jinan University)Jinan UniversityZhuhai 519000 GuangdongChina The Biomedical Translational Research institute Faculty of Medical ScienceJinan UniversityGuangzhou 510632 GuangdongChina Shandong Artificial Intelligence institute Qilu University of Technology(Shandong Academy of Sciences)Jinan 250200China The University of Queensland diamantina institute Faculty of MedicineThe University of QueenslandBrisbaneQLD 4072Australia Immunology Programme Life Sciences InstituteImmunology Translational Research Program and Department of Microbiology and ImmunologyYong Loo Lin School of MedicineNational University of SingaporeSingapore 117456Singapore

Interleukin 27(IL-27),a heterodimeric cytokine composed of Epstein-Barr virus-induced 3 and p28,is a pleiotropic cytokine with both pro-and anti-inflammatory ***,the precise role of IL-27 in acute graft-versus-host disease is not yet fully *** this study,utilizing mice with IL-27 p28 deficiency in dendritic cells(DCs),we demonstrated that IL-27 p28 deficiency resulted in impaired Treg cell function and enhanced effector T cell responses,corresponding to aggravated aGVHD in *** addition,using single-cell RNA sequencing,we found that loss of IL-27 p28 impaired Treg cell generation and promoted IL1R2^(+)TIGIT^(+)pathogenic CD4+T cells in the thymus at a steady ***,IL-27 p28 deficiency promoted STAT1 phosphorylation and Th1 cell responses,leading to the inhibition of Treg cell differentiation and ***,patients with high levels of IL-27 p28 in serum showed a substantially decreased occurrence of grade II-IV aGVHD and more favorable overall survival than those with low levels of IL-27 ***,our results suggest a protective role of DC-derived IL-27 p28 in the pathogenesis of aGVHD through modulation of the Treg/Teff cell balance during thymic ***-27 p28 may be a valuable marker for predicting aGVHD development after transplantation in humans.

关键词： impaired protective graft

Voltammetric sensor based on cobalt-poly(methionine)-modified glassy carbon electrode for determination of estriol hormone in pharmaceuticals and urine

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Pharmaceutical Analysis 2019年第5期9卷 347-357页

作者： Eliziana S. Gomes Fernando R.F. Leite Bruno R.L. Ferraz Henrique A.J.L. Mourao Andrea R. Malagutti Department of Pharmacy Faculty of Biological and Health Sciences Federal University of Jequitinhonha and Mucuri Valleys MGT 367 Highway e Km 583 CEP 39100-000 Diamantina MG Brazil Department of Biology Federal University of Espírito Santo CEP 29500-000 Alegre ES Brazil institute of Science and Technology Federal University of Jequitinhonha and Mucuri Valleys MGT 367 Highway e Km 583 CEP 39100-000 Diamantina MG Brazil

A voltammetric sensor based on the electropolymerization of cobalt-poly(methionine)(Co-poly(Met)) on a glassy carbon electrode (GCE) was developed and applied for the determination of estriol by differential pulse voltammetry (DPV) for the first time. The electrochemical properties of the Co-poly(Met)/GCE were analysed by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) were used to characterize the polymers on the GCE surface. The deposition of the Co-poly(Met) film on the GCE surface enhanced the sensor electronic transfer. CV studies revealed that estriol exhibits an irreversible oxidation peak at t0.58 V for the Co-poly(Met)/GCE (vs. Ag/AgCl reference electrode) in 0.10 mol/L Britton-Robinson buffer solution (pH=7.0). Different voltammetric scan rates (10-200 mV/s) suggested that the estriol oxidation on the Co-poly(Met)/GCE surface is controlled by adsorption and diffusion processes. Based on the optimized DPV conditions, the linear responses for estriol quantification were from 0.596 μmol/L to 4.76 μmol/L (R2 =0.996) and from 5.66 μmol/L to 9.90 μmol/L (R2 =0.994) with a limit of detection (LOD) of 0.0340 μmol/L and a limit of quantification (LOQ) of 0.113 μmol/L. The DPV-Co-poly(Met)/GCE method provided good intra-day and inter-day repeatability with RSD values lower than 5%. Also, no interference of real sample matrices was observed on the estriol voltammetric response, making the DPV-Copoly( Met)/GCE highly selective for estriol. The accuracy test showed that the estriol recovery was in the ranges 96.7%-103% and 98.7%-102% for pharmaceutical tablets and human urine, respectively. The estriol quantification in pharmaceutical tablets performed by the Co-poly(Met)/GCE-assisted DPV method was comparable to the official analytical protocols.

关键词： Estriol Electroanalysis Differential pulse voltammetry Cobalt-poly(methionine) film-modified glassy carbon electrode

Humanized bone facilitates prostate cancer metastasis and recapitulates therapeutic effects of zoledronic acid in vivo

在线全文

学校读者我要写书评

暂无评论

Bone Research 2019年第4期7卷 388-398页

作者： Marietta Landgraf Christoph ALahr Alvaro Sanchez-Herrero Christoph Meinert Ali Shokoohmand Pamela MPollock Dietmar WHutmacher Abbas Shafiee Jacqui AMcGovern Centre in Regenerative Medicine Institute of Health and Biomedical InnovationQueensland University of TechnologyBrisbaneAustralia School of Biomedical Science Institute of Health and Biomedical InnovationTranslational Research InstituteQueensland University of TechnologyBrisbaneAustralia Australian Research Council(ARC)Training Centre in Additive Biomanufacturing Queensland University of TechnologyBrisbaneAustralia UQ diamantina institute Translational Research InstituteThe University of QueenslandBrisbaneQLDAustralia

Advanced prostate cancer(PCa)is known for its high prevalence to metastasize to bone,at which point it is considered *** significant effort,there is no animal model capable of recapitulating the complexity of PCa bone *** humanized mouse model for PCa bone metastasis used in this study aims to provide a platform for the assessment of new drugs by recapitulating the human–human cell interactions relevant for disease development and *** humanized tissueengineered bone construct(hTEBC)was created within NOD-scid IL2rgnull(NSG)mice and was used for the study of experimental PC3-Luc bone *** was confirmed that PC3-Luc cells preferentially grew in the hTEBC compared with murine *** translational potential of the humanized mouse model for PCa bone metastasis was evaluated with two clinically approved osteoprotective therapies,the non-species-specific bisphosphonate zoledronic acid(ZA)or the human-specific antibody Denosumab,both targeting Receptor Activator of Nuclear Factor Kappa-Β***,but not Denosumab,significantly decreased metastases in hTEBCs,but not murine *** results highlight the importance of humanized models for the preclinical research on PCa bone metastasis and indicate the potential of the bioengineered mouse model to closely mimic the metastatic cascade of PCa cells to human ***,it will enable the development of new effective antimetastatic treatments.

关键词： metastasis PC3 drugs

Macrophage secretory products induce an inflammatory phenotype in hepatocytes

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2012年第15期18卷 1732-1744页

作者： Michelle Melino Victoria L Gadd Gene V Walker Richard Skoien Helen D Barrie Dinesh Jothimani Leigh Horsfall Alun Jones Matthew J Sweet Gethin P Thomas Andrew D Clouston Julie R Jonsson Elizabeth E Powell Centre for Liver Disease Research School of MedicineThe University of QueenslandPrincess Alexandra HospitalBrisbane 4102QueenslandAustralia Department of Gastroenterology and Hepatology Princess Alexandra HospitalBrisbane 4102QueenslandAustralia institute for Molecular Bioscience and Australian Infectious Diseases Research Centre The University of QueenslandBrisbane 4072QueenslandAustralia diamantina institute The University of QueenslandBrisbane 4102QueenslandAustralia

AIM:To investigate the influence of macrophages on hepatocyte phenotype and ***:Macrophages were differentiated from THP-1 monocytes via phorbol myristate acetate stimulation and the effects of monocyte or macrophageconditioned medium on HepG2 mRNA and protein expression *** in vivo relevance of these findings was confirmed using liver biopsies from 147 patients with hepatitis C virus(HCV)***:Conditioned media from macrophages,but not monocytes,induced a transient morphological change in hepatocytes associated with upregulation of vimentin(7.8±2.5-fold,P=0.045)and transforming growth factor(TGF)-β1(2.6±0.2-fold,P<0.001)and downregulation of epithelial cadherin(1.7±0.02-fold,P=0.017)mRNA *** analysis revealed significant upregulation of lipocalin-2(17-fold,P <0.001)and pathways associated with inflammation,and substantial downregulation of pathways related to hepatocyte *** patients with chronic HCV,realtime polymerase chain reaction and immunohistochemistry confirmed an increase in lipocalin-2 mRNA(F0 1.0 ±0.3,F1 2.2±0.2,F2 3.0±9.3,F3/4 4.0±0.8,P= 0.003)and protein expression(F1 1.0±0.5,F2 1.3± 0.4,F3/4 3.6±0.4,P=0.014)with increasing liver *** performance liquid chromatography-tandem mass spectrometry analysis identified elevated levels of matrix metalloproteinase(MMP)-9 in macrophageconditioned medium,and a chemical inhibitor of MMP-9 attenuated the change in morphology and mRNA expression of TGF-β1(2.9±0.2 vs 1.04±0.1,P<0.001) in macrophage-conditioned media treated HepG2 *** patients with chronic HCV infection,hepatic mRNA expression of CD163(F0 1.0±0.2,F1/2 2.8±0.3,F3/4 5.3±1.0,P=0.001)and MMP-9(F0 1.0±0.4,F1/2 2.8±0.3,F3/4 4.1±0.8,P=0.011)was significantly associated with increasing stage of ***:Secreted macrophage products alter the phenotype and function of hepatocytes,with increased expression of inflammatory mediators,suggesting that hepatocytes actively participat

关键词：细胞分泌肝细胞诱导 mRNA表达 HepG2细胞丙型肝炎病毒转化生长因子 MMP-9