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Petrography and tectonic provenance of the Permian Tunas Formation:Implications on the paleotectonic setting during the ClaromecóForeland Basin evolution,southwestern Gondwana margin,Argentina

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Journal of Palaeogeography 2022年第3期11卷 427-447页

作者： María Belén Febbo Renata N.Tomezzoli Nora N.Cesaretti Giselle Choque Natalia B.Fortunatti Guadalupe Arzadún Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET) Argentina Dpto.de Geología Universidad Nacional del SurAvenida Alem 1253B8000ICPBahía BlancaArgentina Centro de Geología Aplicada y Medio Ambiente(CGAMA CIC–UNS)Dpto.de GeologíaUniversidad Nacional del SurBahía BlancaArgentina laboratorio de paleomagnetismo“daniel a.valencio” Instituto de Geociencias BásicasAplicadas y Ambientales de Buenos Aires(IGEBA)Departamento de Ciencias GeológicasFacultad de Ciencias Exactas y Naturales(FCEyN)Universidad de Buenos Aires(UBA)Pabellón II(1428)CABAArgentina laboratorio de Termocronología(La.Te Andes–CONICET) Las Moreras 310A4401XBAVaquerosSaltaArgentina

The Claromec o Basin is located at the south-western sector of the Buenos Aires province,*** basin is considered a foreland basin closely related to the evolution of the southwestern Gondwana *** contribution focuses on the provenance analysis of the Tunas Formation(Permian,Pillahuinc o Group),which represents the last filling stage for the Claromec o Foreland *** and tectonic provenance analyses were performed in sandstones recovered from subsurface(PANG 0001 and PANG0003 exploration wells)and outcrops located close to the basin center(Gonzales Chaves locality).In the subsurface,the analyzed succession is composed of medium-to fine-grained sandstones interbedded with tuffs,mudrocks,carbonaceous mudrocks and coal *** outcrops,the succession is dominated by mediumto fine-grained sandstones interbedded with *** composition patterns are distributed into the recycled orogen and transitionally recycled to mixed *** analyses,in addition to provenance and sedimentological studies,confirm that sedimentary material was derived from a mixed source,which largely comes from the Sierras Australes fold and thrust belt,located towards the W-SW,where the sedimentary succession is interbedded with volcanic *** Tunas Formation shows clear differences in its modal composition,paleocurrent direction and paleoenvironmental conditions with respect to the underlying units of the Pillahuinc o Group(Sauce Grande,Piedra Azul and Bonete formations).Source areas changed from cratonic to mixed fold belt/arc-derived material,suggesting variations in the Claromec o Basin configuration during the Late *** in the paleotectonic scenario during the deposition of the Tunas Formation have been interpreted as a consequence of a compressive post-collisional deformation event,the product of adjustment,accommodation and translation of terrains towards the equator during the Permian-Triassic to form Pangea.

关键词： Provenance area Petrography Tunas Formation ClaromecóForeland Basin Southwestern Gondwana margin Permian Upper Paleozoic

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Tribological behaviour of sintered iron based self-lubricating composites

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Friction 2017年第3期5卷 285-307页

作者： Jose daniel Biasoli de MELLO Cristiano BINdeR Gisele HAMMES Roberto BINdeR Aloisio Nelmo KLEIN laboratorio de Materiais(LabMat) Universidade Federal de Santa Catarina Florianópolis 88.040-900 SC BrazilLaboratorio de Tribologia e Materiais Universidade Federal de Uberl(a)ndia Uberl(a)ndia 38.400-902 MG Brazil laboratorio de Materiais(LabMat) Universidade Federal de Santa Catarina Florianópolis 88.040-900 SC Brazil Whirlpool Embraco Unit Joinville 89.219-900 SC Brazil

This work is a review of previous works,presenting and discussing the most important results obtained by an ongoing research program towards the development of innovative,low-cost,self-lubricating composites with a low friction coefficient and high mechanical strength and wear *** emphasis is given to uniaxial die pressing of solid lubricant particles mixed with matrix powders and to metal injection moulding associated with in situ generation of solid lubricant ***,a microstructural model/processing route (powder injection moulding followed by plasma-assisted debinding and sintering) produced a homogeneous dispersion of in situ generated solid lubricant *** nodules of graphite with diameter smaller than 20 μm were formed,constituting a nanostructured stacking of graphite foils with nanometric *** Raman analysis indicated that the graphite nodules were composed of turbostratic 2D graphite having highly misaligned graphene planes separated by large interlamellae *** interplanar distance between the graphene foils and misalignment of these foils were confirmed by transmission electron microscopy and were,probably,the origin of the outstandingly low dry friction coefficient (0.04).The effect of sintering temperature,precursor content,metallic matrix composition and surface finish is also ***,the influence of a double-pressing/double-sintering (DPDS) technique on the tribological performance of self-lubricating uniaxially die-pressed hBN + graphite-Fe-Si-C-Mo composite is also ***,the tribological behaviour of die-pressed Fe-Si-C matrix composites containing 5,7.5 and 10 wt％ solid lubricants (hBN and graphite) added during the mixing step is analysed in terms of mechanical properties and wear ***,the synergy between solid lubricant particles dispersed in a metallic matrix and fluid lubricants in a cooperative mixed lubrication regime is presented.

关键词： tribological behaviour powder metallurgy iron based self-lubricating composites turbostratic graphite

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Features of the motion of gel particles in a three-phase bubble column under foaming and non-foaming conditions

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Chinese Journal of Chemical Engineering 2018年第6期26卷 1370-1382页

作者： Gabriel Salierno Mauricio Maestri Stella Piovano Miryan Cassanello Maria Angelica Cardona daniel Hojman Hector Somacal laboratorio de Reactores y Sistemas para la lndustria-LARSl Dep. lndustrias FCEyN Universidad de Buenos Aires Int. GiJiraldes 2620 CI428BGA Buenos Aires Argentina laboratorio de Diagnóstico por Radiaciones-LADiR Dep. de Fisica Experimental. Comision National de Energia Atomica (CNEA) San Martin Buenos Aires Argentina Universidad de San Martin San Martin Buenos Aires Argentina

Features of the motion of gel particles in a three-phase bubble column with non-foaming and foaming gas–liquid systems,determined by using experiments of radioactive particle tracking(RPT),have been *** tracer used is a gel particle which resembles typical immobilized *** tracer trajectory is analyzed to extract relevant information for design *** solid velocity field,turbulence parameters,dispersion coefficients,mixing times and flow transitions are determined and *** presence of foam significantly affects many quantified parameters,especially within the heterogeneous flow *** hydrodynamic stresses are reduced in the presence of foam,especially close to the *** dispersion coefficients also decrease,and the solid mixing time is only slightly affected by the presence of *** holdup,inferred both from RPT experiments and from gamma ray scanning,is higher for foaming systems and leads to a shift in the transition gas velocity towards higher values.

关键词： Bubble columns Solid motion Gel beads Foaming Particle tracking Mixing

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Fluoride-induced Early Teeth Wearing in Argentinian Cattle

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Biomedical and Environmental Sciences 1994年第3期7卷 205-215页

作者： TOMAS A. LOPEZ MARGARITA R. BUSETTI MARCELO C. FORT AND daniel O. BEDOTTI (laboratorio de Toxicologia Veterinaria-Estacion Experimental Agropecuaria Balcarce (INTA), Casilla de Correo 276-(7620) Balcarce-Buenos Aires-Argentina Unidad Regional de Invest laboratorio de Toxicologia Veterinaria-Estación Experimental Agropecuaria Balcarce (INTA) Balcarce Buenos Aires Argentina.

The relationship between observed early teeth wearing in cattle and the existence of large areas where excess nuoride in underground water prevails in Argentina, but has never been studied. Average values of bone fluoride exceeding 5000 ppm and well water containing up to 10.5 ppm of this element were found in a farm (ETWF) where early teeth wearing is observed, while in a control farm (NETWF), those values were 1480 ppm and 3.0 ppm respectively. Urine samples from animals from the ETWF contained almost 4 times more fluoride than those from the *** in both farms contained about the same levels of fluoride (15 to 25 ppm). None of the farms was exPosed to industrial, volcanic, or geothermal activity. Lactating and adult animals were transferred from one farm to the other. After 30 months, adult animals from the NETWF showed no damage in teeth, while adults from the ETWF continued a rapid teeth wearing. Young animals from the NETWF developed severely damaged permanent teeth, while young animals from the ETWF developed normal teeth. We concluded that the problem exists in the ETWF and being a standard farm, the condition could be extrapolated to other areas

关键词： ppm Fluoride-induced Early Teeth Wearing in Argentinian Cattle

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Diversity, Endemism and Conservation of Ferns(Polypodiales) in the Mexican Mountain Component

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Journal of Mountain Science 2015年第4期12卷 891-904页

作者： SANGINéS-FRANCO Celia LUNA-VEGA Isolda CONTRERAS-MEDINA Raúl ESPINOSA David TEJERO-DíEZ José daniel RIVAS Gerardo laboratorio de Biogeografía y Sistemática Departamento de Biología Evolutiva Facultad de Ciencias Universidad Nacional Autónoma de México (UNAM) Escuela de Ciencias Universidad Autónoma "Benito Juárez" de Oaxaca (UABJO) Av.Universidad s/n Ex Hacienda de Cinco Se?ores Oaxaca de Juárez CP 68120 Oaxaca México Facultad de Estudios Superiores Zaragoza Unidad Multidisciplinaria de Investigación Experimental ZaragozaUniversidad Nacional Autónoma de México (UNAM) Carrera de Biología Facultad de Estudios Superiores Iztacala Universidad Nacional Autónoma de México MéxicoAvenida de los Barrios Número 1 Colonia Los Reyes Iztacala Tlalnepantla CP 54090 Estado de México México laboratorio de Biogeografía Acuática Departamento de Biología Comparada Facultad de Ciencias Universidad Nacional Autónoma de México (UNAM)

We analyzed the distributional patterns of95 selected species of leptosporangiate ferns inhabiting the Mexican Mountain Component, using grid-cells of one geographical degree as unit areas,applying endemism indices and richness and beta diversity *** data were obtained from several herbaria and specialized *** grid-cells appear to be important for fern species richness, as they contain 35 to 49 *** gridcells are located in the Sierra Madre Oriental(SMO),Trans-Mexican Volcanic Belt(TMVB) and the Sierra Madre del Sur(SMS).Mean richness by latitudinal belts of one degree showed that the belts with highest values are related to the TMVB and SMS.A total of 13grid-cells were recognized as important from theperspective of endemism; most of them are located also in the SMO, TMVB and *** richest gridcells coincided with one of the main centres of endemism for ferns obtained in this study, located in the convergence of the southern part of the SMO, the eastern portion of the TMVB and the northern part of the SMS, reflecting the high humidity existing on the mountain slopes facing the Gulf of *** important grid-cells recognized from richness and endemism analyses coincide with Mexican Natural Protected *** beta diversity analysis showed a low degree of similarity among grid-cells, implying a high species replacement, as the result of environmental heterogeneity occurring in the Mexican mountain *** the other hand, the spatial analysis suggested a pattern of phytogeographical regionalization comprising twomain areas: the Mexican Transition Zone and the Mexican Central *** play an important role in the Mexican biodiversity and contributing to the beta diversity of Mexico.

关键词： Biogeography Distributional patterns Leptosporangiate ferns Mexico

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Interplay between post-translational cyclooxygenase-2 modifications and the metabolic and proteomic profile in a colorectal cancer cohort

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World Journal of Gastroenterology 2019年第4期25卷 433-446页

作者： Patricia Prieto Rafael I Jaén daniel Calle María Gómez-Serrano Estefanía Nú?ez María Fernández-Velasco Paloma Martín-Sanz Sergio Alonso Jesús Vázquez Sebastián Cerdán Miguel ángel Peinado Lisardo Boscá department of Metabolism and Physiopathology of Inflammatory Diseases Instituto de Investigaciones Biomédicas Alberto Sols (CSIC-UAM) Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (Ciber-CV) Instituto de Salud Carlos III (ISCIII) laboratorio de Imagen Médica Hospital Universitario Gregorio Mara?ón laboratorio de Proteómica Cardiovascular Centro Nacional de Investigaciones Cardiovasculares (CNIC) Instituto de Investigación Sanitaria del Hospital Universitario la Paz(IdiPaz) Programa de Medicina Predictiva y Personalizada del Cáncer (PMPPC) Fundación Instituto de investigación en ciencias de la salud Germans Trias i PujolCtra Can Ruti

BACKGROUND Colorectal cancer(CRC) is the second most common cause of cancer death worldwide. It is broadly described that cyclooxygenase-2(COX-2) is mainly overexpressed in CRC but less is known regarding post-translational modifications of this enzyme that may regulate its activity, intracellular localization and stability. Since metabolic and proteomic profile analysis is essential for cancer prognosis and diagnosis, our hypothesis is that the analysis of correlations between these specific parameters and COX-2 state in tumors of a high number of CRC patients could be useful for the understanding of the basis of this cancer in *** To analyze COX-2 regulation in colorectal cancer and to perform a detailed analysis of their metabolic and proteomic *** Biopsies from both healthy and pathological colorectal tissues were taken under informed consent from patients during standard colonoscopy procedure in the University Hospital of Bellvitge(Barcelona, Spain) and Germans Trias i Pujol University Hospital(Campus Can Ruti)(Barcelona, Spain). Western blot analysis was used to determine COX-2 levels. deglycosylation assays were performed in both cells and tumor samples incubating each sample with peptide N-glycosidase F(PNGase F). Prostaglandin E2(PGE2) levels were determined using a specific ELISA. 1 H high resolution magic angle spinning(HRMAS) analysis was performed using a Bruker AVIII 500 MHz spectrometer and proteomic analysis was performed in a nano-liquid chromatography-tandem mass spectrometer(nano LC-MS/MS) using a QExactive HF orbitrap *** Our data show that COX-2 has a differential expression profile in tumor tissue of CRC patients vs the adjacent non-tumor area, which correspond to a glycosylated and less active state of the protein. This fact was associated to a lesser PGE2 production in tumors. These results were corroborated in vitro performing deglycosylation assays in HT29 cell line where COX-2 protein profile was modified after PN

关键词： Colon Carcinoma Cyclooxygenase Prostaglandin Proteomics High resolution magic angle spinning

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Morphometric Attributes of Two Native Forage Species According to Water Source Distance in Semiarid Central Grasslands of Argentina

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Phyton-International Journal of Experimental Botany 2024年第8期93卷 2063-2074页

作者： Carla Etel Suárez María Sol Rossini Ernesto Francisco Atilio Morici Héctor daniel Esterlich laboratorio de Ecología en Ambientes Semiáridos Ecología VegetalFacultad de AgronomíaUNLPamSanta Rosa6300Argentina Facultad de Ciencias Veterinarias UNLPamGeneral Pico6360Argentina Becaria Doctoral CONICET APNFacultad de AgronomíaUNLPamSanta Rosa6300Argentina

The semiarid grasslands of Argentina’s central region have been modified by domestic livestock grazing,both in their composition and *** increase in the proportion of woody and non-forage species and the decrease in forage species are some of the most evident results of this *** is limited available information about the effect of differential grazing pressures on morphometric attributes of native species,and it also depends on the life histories of the species in this *** objective of this work was to evaluate some morphometric aspects in the grasses Poa ligularis Nees ex Steud and Piptochaetium napostaense(Speg.).Hack according to distance from the water source in communities in the central semiarid region of *** study area included areas of low grassland,golden forests,and secondary forests in grasslands(6 fields with 9 paddocks).Grazing pressure was established based on the distance to the water source,so sampling areas were designated near the water source(grazing pressure is greater)and far from the water source(grazing pressure light)in each of the *** both species,specimens were selected at random,and the following attributes were measured:crown diameter at ground level(cm),burial depth(cm),average tiller weight per plant(***^(−1)),and the density of tillers per unit of crown surface(***^(−2)crown).The morphometric attributes evaluated showed differences according to the distance to the watering hole and in the different *** species presented similar behaviors for the *** were significant differences in the depth of burial and the average weight of tillers per plant,being greater in the areas close to the water *** the distance to the watering hole,there were no significant differences in crown diameter and tiller density,but the highest values were recorded for the former near the watering hole and for the second far from the watering *** pastures with low

关键词： Grazing pressure tiller density tiller weight crown burial depth Poa ligularis Piptochaetium napostaense

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Electric memory effects in styrene-butadiene rubber, containing electric inclusions of highly aromatic oil

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Journal of Advanced Dielectrics 2018年第3期8卷 44-57页

作者： Ricardo Raúl Mocellini Federico Guillermo Bonifacich Fernando daniel Lambri Mariel Antonella Lambri Griselda Irene Zelada Osvaldo Agustín Lambri CONICET-UNR Laboratorio de MaterialesEscuela de Ingeniería Electrica Centro de Tecnología e Investigacion Electrica Facultad de Ciencias ExactasIngeniería y Agrimensura Avda.Pellegrini 250Rosario 2000Argentina

It was determined that samples of styrene-butadiene rubber(SBR),containing highly aromatic oil,exhibit memory effects giving rise to dynamic elastic modulus,damping and internal stresses degree which can be tailored depending on the applied electric field *** capability and stability of the interaction process between aligned neighbor dipoles for exhibiting a memory effect,once the aligning electric field was removed are *** is determined that depending on the spatial arrangement and the amount of electric charge of the dipoles,this interaction is able to promote a memory effect which keeps the alignment between *** electrostatic interaction plays the role of a counteracting effect for keeping the alignment,which was called *** results from the developed model were applied successfully to SBR composite samples for explaining the memory effects recorded from dynamic mechanical analysis(DMA)measurements under electric *** addition,the model of the electric inclusion based on the inclusion theory for continuous media,was applied to determine the degree of internal stresses in the dielectric composite material due to the external applied electric *** addition,from the coupling between the model developed here and simple issues related to the mechanical properties of composite materials,a procedure for determining the maximum possible gap between the electric dipoles in composite dielectric materials is also shown.

关键词： Modeling memory effect dynamic mechanical analysis electric interaction polymer matrix composite with electric inclusions

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detection of dengue virus serotype 3 in Cajamarca,Peru:Molecular diagnosis and clinical characteristics

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Asian Pacific Journal of Tropical Medicine 2021年第10期14卷 456-462页

作者： Miguel Angel Aguilar-Luis Hugo Carrillo-Ng Sungmin Kym Wilmer Silva-Caso Eduardo Verne Luis J.del Valle Jorge Bazán-Mayra Victor Zavaleta-Gavidia daniel Cornejo-Pacherres Yordi Tarazona-Castro Ronald Aquino-Ortega Angela Cornejo-Tapia Juana del Valle-Mendoza School of Medicine Research and Innovation Center of the Faculty of Health SciencesUniversidad Peruana de Ciencias AplicadasLimaPeru laboratorio de Biologia Molecular Instituto de Investigación NutricionalLimaPeru Facultad de Medicina Alberto Hurtado Universidad Peruana Cayetano HerediaLimaPeru Division of Infectious Diseases Department of Internal MedicineChungnam National University School of MedicineDaejeonRepublic of Korea Barcelona Research Center for Multiscale Science and Engineering Departament d'Enginyeria QuímicaEEBEUniversitat Politècnica de Catalunya(UPC)BarcelonaSpain laboratorio Regional de Cajamarca Dirección Regional de Salud de Cajamarca(DIRESA)CajamarcaPeru

Objective:To describe and molecularly characterize an outbreak of dengue virus(deNV)infection in Cajamarca,an Andean region in ***:A total of 359 serum samples from patients with acute febrile illness were assessed for the presence of deNV via RT-PCR,ELISA NS1,Ig M and Ig G in Cajamarca,Peru from January 2017 to June *** evaluation of the different diagnostic tests and their applicability was ***:dengue virus was detected in 24.7%of samples by ***,serological analysis detected 30.3%positive cases via ELISA NS1 antigen,16.7%via ELISA Ig G and 9.7%via ELISA Ig *** of the cases corresponded to deNV-3(77.5%).The use of RT-PCR performed better in primary infections(Pdetection of ELISA Ig M performed better in secondary infections(Pdetecting primary(92.5%)and secondary infections(96.6%).The most frequent symptoms associated with fever were headaches,myalgias,and arthralgias across all ***:We report an important outbreak of dengue infection caused by deNV-3 in Cajamarca,*** findings encourage the use of NS1 antigen and Ig M *** findings demonstrate an increasing expansion of deNV-3 in Peru and highlight the importance of molecular diagnosis and serotype characterization among the clinically defined dengue cases to strengthen the Peruvian epidemiological surveillance.

关键词： dengue deNV Arbovirus Diagnosis Peru

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Cerebral dopamine neurotrophic factor transfection in dopamine neurons using neurotensin-polyplex nanoparticles reverses 6-hydroxydopamine-induced nigrostriatal neurodegeneration

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Neural Regeneration Research 2022年第4期17卷 854-866页

作者： Manuel A.Fernandez-Parrilla David Reyes-Corona Yazmin M.Flores-Martinez Rasajna Nadella Michael J.Bannon Lourdes Escobedo Minerva Maldonado-Berny Jaime Santoyo-Salazar Luis O.Soto-Rojas Claudia Luna-Herrera Jose Ayala-Davila Juan A.Gonzalez-Barrios Gonzalo Flores Maria E.Gutierrez-Castillo Armando JEspadas-Alvarez Irma A.Martínez-Dávila Porfirio Nava daniel Martinez-Fong departamento de Fisiología Biofísica y NeurocienciasCentro de Investigación y de Estudios AvanzadosCiudad de MéxicoMéxico Programa Institucional de Biomedicina Molecular Escuela Nacional de Medicina y HomeopatíaInstituto Politécnico NacionalCiudad de MéxicoMéxico department of Biosciences IIIT-SrikakulamRajiv Gandhi University of Knowledge Technologies(RGUKT)Andhra PradeshIndia department of Pharmacology Wayne State University School of MedicineDetroitMIUSA departamento de Física Centro de Investigación y de Estudios AvanzadosCiudad de MéxicoMéxico Facultad de Estudios Superiores Iztacala Universidad Nacional Autónoma de MéxicoTlalnepantla de BazEdo.de MéxicoMéxico departamento de Fisiología Escuela Nacional de Ciencias BiológicasCiudad de MéxicoMéxico laboratorio de Medicina Genómica Hospital Regional“1°de Octubre”ISSSTECiudad de MéxicoMéxico laboratorio de Neuropsiquiatría Instituto de FisiologíaBenemérita Universidad Autónoma de PueblaPueblaPueblaMéxico departamento de Biociencias e Ingeniería Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y DesarrolloInstituto Politécnico NacionalCiudad de MéxicoMéxico Programa de Nanociencias y nanotecnología Centro de Investigación y de Estudios AvanzadosCiudad de MéxicoMéxico

Overexpression of neurotrophic factors in nigral dopamine neurons is a promising approach to reverse neurodegeneration of the nigrostriatal dopamine system,a hallmark in Parkinson's *** human cerebral dopamine neurotrophic factor(h CDNF)has recently emerged as a strong candidate for Parkinson's disease *** study shows that h CDNF expression in dopamine neurons using the neurotensinpolyplex nanoparticle system reverses 6-hydroxydopamine-induced morphological,biochemical,and behavioral *** independent electron microscopy techniques showed that the neurotensin-polyplex nanoparticles containing the h CDNF gene,ranging in size from 20 to 150 nm,enabled the expression of a secretable h CDNF in *** injection in the substantia nigra compacta on day 21 after the 6-hydroxydopamine lesion resulted in detectable h CDNF in dopamine neurons,whose levels remained constant throughout the study in the substantia nigra compacta and *** with the lesioned group,tyrosine hydroxylase-positive(TH^(+))nigral cell population and TH+fiber density rose in the substantia nigra compacta and striatum after h CDNF *** increase inβIII-tubulin and growth-associated protein 43 phospho-S41(GAP43 p)followed TH^(+)cell recovery,as well as dopamine and its catabolite *** reversal(80%)of drugactivated circling behavior and full recovery of spontaneous motor and non-motor behavior were ***-derived neurotrophic factor recovery in dopamine neurons that also occurred suggests its participation in the neurotrophic *** findings support the potential of nanoparticle-mediated h CDNF gene delivery to develop a disease-modifying treatment against Parkinson's *** Institutional Animal Care and Use Committee of Centro de Investigación y de Estudios Avanzados approved our experimental procedures for animal use(authorization No.162-15)on June 9,2019.

关键词： axonal growth brain-derived neurotrophic factor gene delivery nanoparticles neuritogenesis neuronal cytoskeleton neuroregeneration neurorestoration neurotrophic therapy Parkinson's disease reinnervation substantia nigra

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