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FOOD BIOSCIENCE 2023年第3期53卷 1603-1611页

作者： Cascajosa-Lira, Antonio Medrano-Padial, Concepcion Prieto, Ana Isabel Banos, Alberto de la Torre, jose M. jos, angeles Camean, Ana M. Univ Seville Fac Farm Area Toxicol Prof Garcia Gonzalez 2 Seville 41012 Spain DMC Res Ctr Camino Jayena 82 Alhendin 18620 Spain

Propyl-propane-thiosulfonate (PTSO) is one of the main organosulfur compounds present in Allium essential oils with a widely documented biological activity. For this reason, it could be used as a food and feed additive in the agri-food industry. A genotoxicity evaluation of substances and their metabolites present in food is necessary to guarantee the consumer's health following the recommendations of the European Food Safety Authority (EFSA). To evaluate the toxicological profile of derivatives of PTSO, the cytotoxicity, an Ames test, a micronucleus test and the comet assay were performed. Results showed that non-cytotoxic effects were observed in Caco-2 exposed to s-propyl mercaptocysteine (CSSP) and s-propyl mercaptoglutathione (GSSP) (0-450 mu M). The mutagenicity index remained in the range of 0.6-1.4 for both compounds, showing no mutagenic effects for the concentrations of 5000-312.5 mu g GSSP/plate and 250-15.63 mu g CSSP/plate. Moreover, the % binucleated cells with micronuclei were 1.3-2.2 and 1.6-2.7 for GSSP and GSSP, respectively. For comet assays there was no DNA-genotoxic or oxidative damage in a concentration range of 112.5-450 mu M. Therefore, we can conclude that these compounds are not genotoxic at the conditions tested. These results support that the presence of CSSP and GSSP in the food/ feed is not of concern, although further studies are needed to complete their safety profile.

关键词： Cytotoxicity Genotoxicity Mutagenicity Organosulfur compounds Allium Propyl-propane-thiosulfonate

Mitochondria–cGAS–STING axis is a potential therapeutic target for senescence-dependent inflammaging-associated neurodegeneration

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Neural Regeneration Research 2025年第3期20卷 805-807页

作者： joséM.Izquierdo Centro de Biología Molecular Severo Ochoa(CBM) Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid(CSIC-UAM)MadridSpain

The word “senescence” comes from the Latin senescens, meaning “to begin to age”, and is characterized by a long-lasting but reversible block in proliferation, resulting from stress-induced cell cycle arrest of pre... 详细信息

关键词： Latin potential lasting

The emerging role of mesenchymal stem cell-derived extracellular vesicles to ameliorate hippocampal NLRP3 inflammation induced by binge-like ethanol treatment in adolescence

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Neural Regeneration Research 2025年第4期20卷 1153-1163页

作者： Susana Mellado María joséMorillo-Bargues Carla Perpiñá-Clérigues Francisco García-García Victoria Moreno-Manzano Consuelo Guerri María Pascual Department of Physiology School of Medicine and DentistryUniversity of ValenciaValenciaSpain Bioinformatics and Biostatistics Unit Príncipe Felipe Research CenterValenciaSpain Neuronal and Tissue Regeneration Laboratory Príncipe Felipe Research CenterValenciaSpain

Our previous studies have reported that activation of the NLRP3(NOD-,LRR-and pyrin domain-containing protein 3)-inflammasome complex in ethanol-treated astrocytes and chronic alcohol-fed mice could be associated with neuroinflammation and brain *** stem cell-derived extracellular vesicles(MSC-EVs)have been shown to restore the neuroinflammatory response,along with myelin and synaptic structural alterations in the prefrontal cortex,and alleviate cognitive and memory dysfunctions induced by binge-like ethanol treatment in adolescent *** the therapeutic role of the molecules contained in mesenchymal stem cell-derived extracellular vesicles,the present study analyzed whether the administration of mesenchymal stem cell-derived extracellular vesicles isolated from adipose tissue,which inhibited the activation of the NLRP3 inflammasome,was capable of reducing hippocampal neuroinflammation in adolescent mice treated with binge *** demonstrated that the administration of mesenchymal stem cell-derived extracellular vesicles ameliorated the activation of the hippocampal NLRP3 inflammasome complex and other NLRs inflammasomes(e.g.,pyrin domain-containing 1,caspase recruitment domain-containing 4,and absent in melanoma 2,as well as the alterations in inflammatory genes(interleukin-1β,interleukin-18,inducible nitric oxide synthase,nuclear factor-kappa B,monocyte chemoattractant protein-1,and C–X3–C motif chemokine ligand 1)and miRNAs(miR-21a-5p,miR-146a-5p,and miR-141-5p)induced by binge-like ethanol treatment in adolescent *** analysis further revealed the involvement of miR-21a-5p and miR-146a-5p with inflammatory target genes and NOD-like receptor signaling *** together,these findings provide novel evidence of the therapeutic potential of MSC-derived EVs to ameliorate the hippocampal neuroinflammatory response associated with NLRP3 inflammasome activation induced by binge drinking in adolescence.

关键词： adolescence binge-like ethanol treatment extracellular vesicles hippocampus mesenchymal stem cells neuroinflammation NOD-,LRR-and pyrin domain-containing protein 3(NLRP3)

Differential response of injured and healthy retinas to syngeneic and allogeneic transplantation of a clonal cell line of immortalized olfactory ensheathing glia:a double-edged sword

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Neural Regeneration Research 2025年第8期20卷 2395-2407页

作者： María Norte-Muñoz María Portela-Lomba Paloma Sobrado-Calvo Diana Simón Johnny Di Pierdomenico Alejandro Gallego-Ortega Mar Pérez joséMCabrera-Maqueda Javier Sierra Manuel Vidal-Sanz María Teresa Moreno-Flores Marta Agudo-Barriuso Grupo de Investigación Oftalmología Experimental Departamento de OftalmologíaOptometríaOtorrinolaringología y Anatomía PatológicaFacultad de MedicinaUniversidad de MurciaInstituto Murciano de Investigación Biosanitaria(IMIB)Campus de Ciencias de la SaludMurciaSpain Experimental Sciences Faculty Universidad Francisco de VitoriaPozuelo de AlarcónMadridSpain Anatomy Histology and Neuroscience DepartmentMedicine FacultyUniversidad Autónoma de MadridMadridSpain Center of Neuroimmunology Service of NeurologyLaboratory of Advanced Imaging in Neuroimmunological DiseasesHospital Clínic of BarcelonaInstitut d’Investigacions Biomèdiques August Pi i Sunyer(IDIBAPS)and Universitat de BarcelonaBarcelonaSpain Medicine Faculty Universidad Francisco de VitoriaPozuelo de AlarcónMadridSpain

Olfactory ensheathing glia promote axonal regeneration in the mammalian central nervous system,including retinal ganglion cell axonal growth through the injured optic ***,it is unknown whether olfactory ensheathing glia also have neuroprotective *** ensheathing glia express brain-derived neurotrophic factor,one of the best neuroprotectants for axotomized retinal ganglion ***,we aimed to investigate the neuroprotective capacity of olfactory ensheating glia after optic nerve *** ensheathing glia cells from an established rat immortalized clonal cell line,TEG3,were intravitreally injected in intact and axotomized retinas in syngeneic and allogeneic mode with or without microglial inhibition or immunosuppressive *** and gene expression analyses were *** bulb-derived primary olfactory ensheathing glia and TEG3 express major histocompatibility complex classⅡ*** and syngenically transplanted TEG3 cells survived in the vitreous for up to 21 days,forming an *** axotomized retinas,only the allogeneic TEG3 transplant rescued retinal ganglion cells at 7 days but not at 21 *** these retinas,microglial anatomical activation was higher than after optic nerve crush *** intact retinas,both transplants activated microglial cells and caused retinal ganglion cell death at 21 days,a loss that was higher after allotransplantation,triggered by pyroptosis and partially rescued by microglial inhibition or ***,neuroprotection of axotomized retinal ganglion cells did not improve with these *** different neuroprotective properties,different toxic effects,and different responses to microglial inhibitory treatments of olfactory ensheathing glia in the retina depending on the type of transplant highlight the importance of thorough preclinical studies to explore these variables.

关键词： cell therapy immune recognition major histocompatibility complex class II(MHCII) neuroprotection olfactory ensheathing glia retinal ganglion cells

Touristic urbanization and greening of coastal dune fields:A long-term assessment of a temperate sandy barrier of Argentina

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Journal of Geographical Sciences 2025年第1期 206-230页

作者： GARZO Pedro Andrés DADON josé Roberto ISLA Federico Ignacio Instituto de Investigaciones Marinas y Costeras (IIMyC-CONICET/UNMDP) Instituto de Geología de Costas y del Cuaternario Dr.Enrique J.Schnack (IGCC-CIC/UNMDP) Universidad de Buenos Aires Facultad de Arquitectura Dise?o y Urbanismo Centro de Investigaciones Gestión de Espacios Costeros (GEC-FADU/UBA) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)

Dune barrier systems represent highly sought-after coastal landscapes for tourism and urban development around the world. However, a century ago, they were considered hazardous environments due to their great dynamic nature. As a result, stabilization practices were considered necessary. The systematic introduction of fast-growing exotic trees helped stabilize the sand, making it easier for tourism urbanization to take place, but also leading to erosion processes. This paper aims to assess long-term changes in vegetation cover over a large temperate barrier in Argentina. This complex region includes urban resorts, afforestation zones, and protected areas. A GIS-based geospatial analysis was conducted using a large satellite database(> 350 images), and the future evolution of the vegetation was modeled. The results revealed two primary spatiotemporal patterns associated with a gradual expansion of vegetation cover, accompanied by a concurrent reduction in sandy areas. In 1986, the dune area comprised 75% more surface than vegetation, whereas in 2021, it represented 60% less than vegetation. Furthermore, the 2050 scenario suggests a potential 40% reduction of dunes in certain areas. It is necessary to enhance management actions aimed at maintaining dune mobility and ensuring local and regional sediment balance. Long-term management strategies must focus on restoring native plant communities and controlling invasive species, and avoiding new dune fixation initiatives based on the introduction of exotic species.

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Multiphysics Simulation of a Novel Concept of MEMS-based Solid Propellant Thruster for Space Propulsion

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Journal of Thermal Science 2011年第6期20卷 527-533页

作者： josé A.Moríigo josé Hermida-Quesada Dept.of Space Programmes National Institute for Aerospace Technology Ctra.Ajalvir km.4Torrejón de Ardoz 28850 MadridSpain Propulsion EngineerPh.D. Dept.of Aerodynamics and Propulsion National Institute for Aerospace Technology Ctra.Ajalvir km.4Torrejón de Ardoz 28850 MadridSpain

This work analyzes a novel MEMS-based architecture of submillimeter size thruster for the propulsion of small spacecrafts,addressing its preliminary characterization of *** architecture of microthruster comprises a setup of miniaturized channels surrounding the solid-propellant reservoir filled up with a high-energetic *** channels guide the hot gases from the combustion region towards the nozzle entrance located at the opposite side of the *** simulations of the transient response of the combustion gases and wafer heating in thruster firings have been conducted with FLUENT under a multiphysics modelling that fully couples the gas and solid parts *** approach includes the gas-wafer and gas-polymer thermal exchange,burnback of the polymer with a simplified non-reacting gas pyrolysis model at its front,and a slip-model inside the nozzle portion to incorporate the effect of gas-surface and rarefaction onto the gas ***,accurate characterization of thruster operation requires the inclusion of the receding front of the polymer and heat transfer in the moving gas-solid *** study stresses the improvement attained in thermal management by the inclusion of lateral micro-channels in the *** particular,the temperature maps reveal the significant dependence of the thermal loss on the instantaneous surface of the reservoir wall exposed to the heat flux of hot ***,the simulations stress the benefit of implementing such a pattern of micro-channels connecting the exit of the combustion reservoir with the *** results prove that hot gases flowing along the micro-channels exert a sealing action upon the heat flux at the reservoir wall and partly mitigate the overall thermal loss at the inner-wall vicinity during the *** analysis shows that propellant decomposition rate is accelerated due to surface preheating and it suggests that a delay of the flame extinction into the reservoir

关键词： micronozzles spacecraft micropropulsion solid propellant thrusters

Analysis of Viscous Heating in a Micro-Rocket Flow and Performance

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Journal of Thermal Science 2008年第2期17卷 116-124页

作者： josé A.Moríigo josé Hermida Quesada Dept.of Space Programmes National Institute for Aerospace Technology Dept.of Aerodynamics and Propulsion National Institute for Aerospace Technology

Micro-rockets for propulsion of small spacecrafts exhibit significant differences with regard to their macroscale counterparts,mainly caused by the role of the viscous dissipation and heat transfer processes in the micron-sized *** goal of this work is to simulate the transient operation of a micro-rocket to investigate the effects of viscous heating on the flow and performance for four configurations of the expanding gas and wafer *** modelling follows a multiphysics approach that solves the fluid and solid regions fully coupled.A contin- uum-based description that incorporates the effects of gas rarefaction through the micro-nozzle,viscous dissipa- tion and heat transfer at the solid-gas interface is ***-equilibrium is addressed with the implementa- tion of a 2nd-order slip-model for the velocity and temperature at the *** results stress that solid-fluid cou- pling exerts a strong influence on the flowfield and performance as well as the effect of the wafer during the first instants of the transient in micro-rockets made of low and high thermal conductivity materials.

关键词： Micronozzles propulsion MEMS slip flow viscous heating

Ab externo implantation of the MicroShunt, a poly (styrene-block-isobutylene-blockstyrene) surgical device for the treatment of primary open-angle glaucoma: a review

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Eye and Vision 2019年第1期6卷 303-311页

作者： Omar Sadruddin Leonard Pinchuk Raymund angeles Paul Palmberg Santen Inc EmeryvilleCAUSA. InnFocus Inc. a Santen CompanyMiamiFLUSA Bascom Palmer Eye Institute University of Miami Miller School of MedicineMiamiFLUSA

Trabeculectomy remains the‘gold standard’intraocular pressure(IOP)-lowering procedure for moderate-to-severe glaucoma;however,this approach is associated with the need for substantial post-operative *** glaucoma surgery(MIGS)procedures aim to reduce the need for intra-and post-operative management and provide a less invasive means of lowering ***,MIGS procedures are associated with only modest reductions in IOP and are targeted at patients with mild-to-moderate glaucoma,highlighting an unmet need for a less invasive treatment of advanced and refractory *** PRESERFLO®MicroShunt(formerly known as InnFocus MicroShunt)is an 8.5 mm-long(outer diameter 350μm;internal lumen diameter 70μm)glaucoma drainage device made from a highly biocompatible,bioinert material called poly(styrene-block-isobutylene-blockstyrene),or *** lumen size is sufficiently small that at normal aqueous flow hypotony is avoided,but large enough to avoid being blocked by sloughed cells or *** MicroShunt achieves the desired pressure range in the eye by draining aqueous humor from the anterior chamber to a bleb formed under the conjunctiva and Tenon’s *** device is implanted ab externo with intraoperative Mitomycin C via a minimally invasive(relative to incisional surgery)surgical procedure,enabling precise control of placement without the need for gonioscopy,suture tension control,or suture *** implantation procedure can be performed in combination with cataract surgery or as a standalone *** MicroShunt received ConformitéEuropéenne(CE)marking in 2012 and is intended for the reduction of IOP in eyes of patients with primary open-angle glaucoma in which IOP remains uncontrolled while on maximum tolerated medical therapy and/or in which glaucoma progression warrants *** clinical studies assessing the long-term safety and efficacy of the MicroShunt have been completed;a Phase 3 multicenter,randomized clinical study comp

关键词： Ab externo Glaucoma Micro-invasive glaucoma surgery MicroShunt Mitomycin C SIBS polymer

New concepts for generating interspecies chimeras using human pluripotent stem cells

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Protein & Cell 2022年第4期13卷 234-238页

作者： Alejandro De Los angeles Jun Wu Department of Psychiatry Yale University School of MedicineNew HavenCTUSA Department of Molecular Biology University of Texas Southwestern Medical CenterDallasTXUSA Hamon Center for Regenerative Science and Medicine University of Texas Southwestern Medical CenterDallasTXUSA

The worldwide paucity of transplantable organs for patients is a devastating *** different approaches have been conceived to address this donor organ shortage,one strategy that has garnered significant attention recently is the prospect of producing human organs in animals through a technique called interspecies blastocyst complementation based on the generation of interspecies *** blastocyst complementation works by injecting pluripotent stem(PS)cells from one species into organogenesis-disabled blastocysts of another species(Kobayashi et al.,2010).As the chimeric embryo develops,donor cells can fill the vacated developmental organ niche and enrich in a target organ of *** principle,interspecies blastocyst complementation may one day allow the generation of human organs inside ***,some ethical issues concerning research and potential human clinical use with chimeras persist(Hyun,2019).

关键词： organs donor generating

ISG15 and ISGylation:Emergence in the cytoskeleton dynamic and tumor microenvironment

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BIOCELL 2022年第5期46卷 1209-1213页

作者： angeles C.TECALCO-CRUZ Posgrado en Ciencias Genómicas Universidad Autónoma de la Ciudad de México(UACM)Ciudad de México03300México

Cytoskeletal remodeling affects the shape,adhesion,and motility of *** dynamics are modulated by matrix proteins,integrins,and several cytokines in the tumor *** this scenario,signaling is activated by integrins and interferons,which can induce ISG15 gene *** gene encodes a ubiquitin-like protein that functions as a protein modifier via the ISGylation ***,non-conjugated ISG15 acts as a cytokine-like *** this viewpoint,the interplay between free ISG15,protein ISGylation,and cytoskeletal dynamics in the tumor microenvironment is discussed.

关键词： Tumor microenvironment ISG15 ISGylation Cytoskeleton dyn