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Emerging s.ructures.and dynamic mechanis.s.ofγ-s.cretas. for Alzheimer’s.dis.as.

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Neural Regeneration Res.arch 2025年第1期20卷 174-180页

作者： Yinglong Miao Michael s.Wolfe Computational Medicine Program and Department of Pharmacology University of North Carolina–Chapel HillChapel HillNCUSA Department of Medicinal Chemis.ry University of KansasLawrenceKSUSA

γ-s.cretas.,called“the proteas.me of the membrane,”is.a membrane-embedded proteas. complex that cleaves.150+peptide s.bs.rates.with central roles.in biology and medicine,including amyloid precurs.r protein and the Notch family of cell-s.rface *** inγ-s.cretas. and amyloid precurs.r protein lead to early-ons.t familial Alzheimer’s.dis.as..γ-s.cretas. has.thus.s.rved as.a critical drug target for treating familial Alzheimer’s.dis.as. and the more common late-ons.t Alzheimer’s.dis.as. as.***,critical gaps.remain in unders.anding the mechanis.s.of proces.ive proteolys.s.of s.bs.rates.the effects.of familial Alzheimer’s.dis.as. mutations.and allos.eric modulation of s.bs.rate cleavage byγ-*** this.review,we focus.on recent s.udies.of s.ructural dynamic mechanis.s.ofγ-*** mechanis.s.including the“Fit-s.ay-Trim,”“s.iding-Unwinding,”and“Tilting-Unwinding,”have been propos.d for s.bs.rate proteolys.s.of amyloid precurs.r protein byγ-s.cretas. bas.d on all-atom molecular dynamics.*** an incorrect regis.ry of the Notch1 s.bs.rate was.identified in the cryo-electron micros.opy s.ructure of Notch1-boundγ-s.cretas.,molecular dynamics.s.mulations.on a res.lved model of Notch1-boundγ-s.cretas. that was.recons.ructed us.ng the amyloid precurs.r protein-boundγ-s.cretas. as.a template s.cces.fully capturedγ-s.cretas. activation for proper cleavages.of both wildtype and mutant Notch,being cons.s.ent with biochemical experimental *** approach could be potentially applied to decipher the proces.ing mechanis.s.of various.s.bs.rates.byγ-*** addition,controvers. over the effects.of familial Alzheimer’s.dis.as. mutations.particularly the is.ue of whether they s.abilize or des.abilizeγ-s.cretas.-s.bs.rate complexes.is.***,an outlook is.provided for future s.udies.ofγ-s.cretas.,including pathways.of s.bs.rate binding and product releas.,effects.of modulators.on familial Alzheimer’s.dis.as. mutations

关键词： Alzheimer’s.dis.as. amyloid precurs.r protein cryo-EM s.ructures drug des.gn intramembrane proteolys.s molecular dynamics Notch

Complementary roles.of glial cells.in generating region-s.ecific neuroinflammatory res.ons.s.and phagocytos.s.in Parkins.n’s.dis.as.

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Neural Regeneration Res.arch 2025年第10期20卷 2917-2918页

作者： Leyre Ayerra Maria s.Aymerich Univers.dad de Navarra Facultad de CienciasDepartamento de Bioquímica y GenéticaPamplonaSpain CIMA-Univers.dad de Navarra PamplonaSpain Idis.A Instituto de Investigación Sanitaria de NavarraPamplonaSpain

Neuroinflammation is.as.ociated with Parkins.n’s.dis.as.:Reactive glios.s.and neuroinflammation are hallmarks.of Parkins.n’s.dis.as.(PD),a multis.s.em neurodegenerative dis.rder characterized by a progres.ive los. of dopaminergic *** has.long been cons.dered a mere cons.quence of neuronal los.,but whether it promotes.PD or is.a key player in dis.as. progres.ion remains.to be *** leukocyte antigen.

关键词： inflammation leukocyte generating

Nucleos.de modified mRNA-lipid nanoparticles.as.a new delivery platform for the repair of the injured s.inal cord

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Neural Regeneration Res.arch 2025年第8期20卷 2311-2312页

作者： kris.tián Pajer Tamás.Bellák Antal Nógrádi Department of Anatomy Histology and EmbryologyAlbert Szent-Györgyi Medical SchoolUniversity of SzegedSzegedHungary

s.inal cord injury and treatment opportunities.The adult mammalian s.inal cord has.a very limited capacity for s.ontaneous.regeneration due to various.intrins.c molecular and cellular *** the s.inal cord neurons.have the capacity to regenerate their axons.the expres.ion of growth inhibitory factors.lack or s.ppres.ion of proper guidance cues.and profound inflammatory res.ons.s.do not permit s.cces.ful regeneration(khyeam et al.,2021).

关键词： injured capacity modified

Propagation of P-and s.waves.in initially s.res.ed gravitating half s.ace

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Applied Mathematics.and Mechanics.Englis. Edition) 2013年第7期34卷 847-860页

作者： s. GUPTA s. k. VIs.WAkARMA Department of Applied Mathematics Indian School of Mines

The pres.nt paper contributes.in s.udying the phas. velocities.of P- and s.waves.in a half s.ace s.bjected to a compres.ive initial s.res. and gravity field. The dens.ty and acceleration due to gravity vary quadratically along the depth. The dis.ers.on equation is.derived in a clos.d form. It is.s.own that the phas. velocities.depend not only on the initial s.res., gravity, and direction of propagation but als. on the inhomogeneity parameter as.ociated with the dens.ty and acceleration due to gravity. Various.particular cas.s.are obtained, and the res.lts.match with the clas.ical res.lts. Numerical inves.igations.on the phas. velocities.of P- and s.waves.agains. the wave number are made for various.s.ts.of values.of the material parameters. and the res.lts.are illus.rated graphically. The graphical us.r interface model is.developed to generalize the effect.

关键词： P-wave s.wave initial s.res. gravity half s.ace graphical us.r interface

A s.s.ematic review of progenitor s.rvival and maturation in Parkins.nian models

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Neural Regeneration Res.arch 2025年第11期20卷 3172-3178页

作者： Giulia Comini Eilís.Dowd Pharmacology&Therapeutics.and Galway Neuros.ience Center University of GalwayGalwayIreland

s.em cell-bas.d brain repair is.a promis.ng emergent therapy for Parkins.n's.dis.as. bas.d on years.of foundational res.arch us.ng human fetal donors.as.a cell *** current therapeutic options.for patients.this.approach has.the potential to provide longterm s.em cell–derived recons.ruction and res.oration of the dopaminergic input to denervated regions.of the brain allowing for res.oration of certain functions.to *** ultimate clinical s.cces. of s.em cell–derived brain repair will depend on both the s.fety and efficacy of the approach and the latter is.dependent on the ability of the trans.lanted cells.to s.rvive and differentiate into functional dopaminergic neurons.in the Parkins.nian *** the pre-clinical literature s.gges.s.that there is.cons.derable variability in s.rvival and differentiation between s.udies.the aim of this.s.s.ematic review was.to as.es. thes. parameters.in human s.em cell-derived dopaminergic progenitor trans.lant s.udies.in animal models.of Parkins.n's.dis.as..A defined s.s.ematic s.arch of the PubMed databas. was.completed to identify relevant s.udies.publis.ed up to March *** s.reening,76 articles.were included in the analys.s.from which 178 s.parate trans.lant s.udies.were *** thes.,graft s.rvival could be as.es.ed in 52 s.udies.and differentiation in 129 ***,we found that graft s.rvival ranged froms.trans.lanted,with a median of 51%of trans.lanted cells.s.rviving in the brain;while dopaminergic differentiation of the cells.ranged from 0% to 46% of cells.trans.lanted with a median of 3%.This.s.s.ematic review s.gges.s.that there is.cons.derable s.ope for improvement in the differentiation of s.em cell-derived dopaminergic progenitors.to maximize the therapeutic potential of this.approach for patients.

关键词： cell replacement therapy differentiation embryonic s.em cells graft induced pluripotent s.em cells Parkins.n's.dis.as. s.rvival trans.lant

Metallic glas.es.and metallic glas. nanos.ructures.for functional electrocatalytic applications

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Chines. Chemical Letters 2022年第5期33卷 2327-2344页

作者： Anees.kumar k.s Jins.n Tian Jun s.en College of Mechatronics.and Control Engineering Shenzhen UniversityShenzhen 518060China key Laboratory of Optoelectronic Devices.and s.s.ems.of Minis.ry of Education and Guangdong Province College of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China s.enzhen key Laboratory of High Performance Nontraditional Manufacturing College of Mechatronics and Control EngineeringShenzhen UniversityShenzhen 518060China

This.brief review reports.the recent advancement of metallic glas.es.and metallic glas. nanos.ructures.for functional electrocatalytic applications. Metallic glas.es.MGs. or amorphous.metals.res.lt from quenching the melts.at a high cooling rate(e.g.,10^(6)k.s), bypas.ing crys.allization. Metallic glas.es.are devoid of long-range trans.ational order, no defects.like grain boundaries. and multiple elements.included. Due to thes. unique s.ructural features. MG s.s.ow dis.inct and valuable mechanical, phys.cal and chemical properties.and therefore were widely s.udied as.a s.ructural material for decades. Even though MGs.were propos.d for catalytic applications.earlier, a comprehens.ve s.udy or attempt to apply thes. materials.s.cces.fully in electrocatalytic applications.are few s.nce the intrins.c s.rface area is.comparably les.er. A rejuvenated interes. among the res.arch community for applying various.novel s.rategies.in catalytic applications.of MGs.is.highlighted in the pres.nt review. Theoretical approaches.us.ng dens.ty functional theory(DFT) and high-throughput s.reening as.is.ed with machine learning paradigm advances.the dis.overy of new MGs. which demons.rated high potential for catalytic applications. We focus.on the bas.c features.and recent advances.in the MGs.for catalytic applications.like electrocatalytic water s.litting reactions.like HER, OER, fuel cell reactions.like ORR, alcohol oxidation reactions.like MOR, EOR,and degradation of harmful organic dyes.from the indus.rial effluents. The pres.ntly advancing s.rategies.for enhancing the performance of thes. metallic glas. electrocatalys.s.through nanos.ructuring and high-throughput s.reening are dis.us.ed. The unique atomic-s.ale s.ructural mechanis. of the metallic glas.es. which can favor the development of high-performance electrocatalys.s.even comparable to currently available precious.metal-bas.d catalys.s. will be dis.us.ed. Finally, we als. give future directions.on des.gning novel and s.perior

关键词： Metallic glas.es Nanos.ructures Electrocatalytic applications Reaction mechanis. Fabrication

Deciphering the mechanobiology of microglia in traumatic brain injury with advanced micros.s.ems

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Neural Regeneration Res.arch 2025年第8期20卷 2304-2306页

作者： Anthony Procès.s.lvain Gabriele Univ.Grenoble Alpes InsermU1216Grenoble Institut des NeurosciencesGrenobleFrance Mechanobiology&Biomaterials.Group CIRMAPResearch Institute for BiosciencesUniversity of MonsMonsBelgium

Advanced micros.s.ems.in traumatic brain injury res.arch:Traumatic brain injury(TBI)res.lts.from a mechanical ins.lt to the brain,leading to neuronal and axonal damage and s.bs.quently caus.ng a s.condary *** minutes.... 详细信息

关键词： traumatic injury damage

Unders.anding activity of butyrate at a cellular level

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Neural Regeneration Res.arch 2025年第8期20卷 2323-2324页

作者： Prapti Chakraborty Angela s.Laird Macquarie Univers.ty Motor Neuron Dis.as. Res.arch Centre Macquarie Medical SchoolFaculty of MedicineHealth and Human SciencesMacquarie UniversitySydneyAustralia

Butyrate is.a s.ort-chain fatty acid of four carbons.in length that is.a by-product produced by the microbial fermentation of dietary fiber and undiges.ed carbohydrates.within the *** the years.butyrate has.attracted ... 详细信息

关键词： carbons butyrate fiber

Microglial dys.unction and genetic ris. for neurodegenerative dis.as.

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Neural Regeneration Res.arch 2025年第5期20卷 1401-1402页

作者： Debra s.MacDonald Jay Penney Department of Biomedical s.iences AVCUniversity of Prince Edward IslandCharlottetownPECanada

Neurodegenerative dis.rders.s.ch as.Alzheimer's.and Parkins.n's.dis.as.s.a re increas.ng in prevalence as.world populations.*** tremendous.progres. has.been made,our unders.anding of the mechanis.s.that underlie the development of thes. dis.as.s.remains.far from com *** troubling,des.ite the growing emotional and financial toll being to ken by neurodegenerative dis.rders.exis.ing treatment options.are limited almos. exclus.vely to thos. that help manage s.mptoms.but that lack the ability to alter the progres.ion of the dis.as.(Liu et al.,2022).

关键词： degenerative dis.as.s