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Molecular Plant 2009年第6期2卷 1289-1297页

作者： marco schottkowski Janina Ratke Ulrike Oster Marc Nowaczyk Jorg Nickelsen Molekulare Pflanzenwissenschaften Biozentrum LMU Munchen Groβhaderner Str. 2-4 82152 Planegg-Martinsried Germany Biochemie und Physiologie der Pflanzen Biozentrum LMU Munchen Groβhaderner Str. 2-4 82152 Planegg-Martinsried Germany LS Biochemie der Pflanzen Ruhr-Universitait Bochum Universitatsstr. 150 44780 Bochum Germany

Biogenesis of photosynthetic pigment/protein complexes is a highly regulated process that requires various assisting factors. Here, we report on the molecular analysis of the Pitt gene （sir1644） from the cyanobacterium Synechocystis sp. PCC 6803 （Synechocystis 6803） that encodes a membrane-bound tetratricopeptide repeat （TPR） protein of formerly unknown function. Targeted inactivation of Pitt affected photosynthetic performance and light-dependent chlorophyll synthesis. Yeast two-hybrid analyses and native PAGE strongly suggest a complex formation between Pitt and the light-dependent protochlorophyllide oxidoreductase （POR）. Consistently, POR levels are approximately threefold reduced in the pitt insertion mutant. The membrane sublocalization of Pitt was found to be dependent on the presence of the periplasmic photosystem Ⅱ （PSⅡ） biogenesis factor PratA, supporting the idea that Pitt is involved in the early steps of photosynthetic pigment/protein complex formation.

关键词： Synechocystis TPR protein POR thylakoid membrane chlorophyll.

Role of copper chelating agents: between old applications and new perspectives in neuroscience

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Neural Regeneration Research 2025年第3期20卷 751-762页

作者： Rosalba Leuci Leonardo Brunetti Vincenzo Tufarelli marco Cerini marco Paparella Nikola Puvača Luca Piemontese Department of Pharmacy-Pharmaceutical Science University of Bari Aldo MoroBariItaly Department of Precision and Regenerative Medicine and Jonian Area(DiMePRe-J) Section of Veterinary Science and Animal ProductionUniversity of Bari Aldo MoroBariItaly Department of Engineering Management in Biotechnology Faculty of Economics and Engineering Management in Novi SadUniversity Business Academy in Novi SadNovi SadSerbia

The role of copper element has been an increasingly relevant topic in recent years in the fields of human and animal health, for both the study of new drugs and innovative food and feed supplements. This metal plays an important role in the central nervous system, where it is associated with glutamatergic signaling, and it is widely involved in inflammatory processes. Thus, diseases involving copper(Ⅱ) dyshomeostasis often have neurological symptoms, as exemplified by Alzheimer's and other diseases(such as Parkinson's and Wilson's diseases). Moreover, imbalanced copper ion concentrations have also been associated with diabetes and certain types of cancer, including glioma. In this paper, we propose a comprehensive overview of recent results that show the importance of these metal ions in several pathologies, mainly Alzheimer's disease, through the lens of the development and use of copper chelators as research compounds and potential therapeutics if included in multi-target hybrid drugs. Seeing how copper homeostasis is important for the well-being of animals as well as humans, we shortly describe the state of the art regarding the effects of copper and its chelators in agriculture, livestock rearing, and aquaculture, as ingredients for the formulation of feed supplements as well as to prevent the effects of pollution on animal productions.

关键词： agriculture Alzheimer's disease chelators copper feed supplements multi-target

From mice to humans:a need for comparable results in mammalian neuroplasticity

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Neural Regeneration Research 2025年第2期20卷 464-466页

作者： marco Ghibaudi Enrica Boda Luca Bonfanti Neuroscience Institute Cavalieri Ottolenghi OrbassanoItaly Department of Veterinary Sciences University of TurinTurinItaly Department of Neuroscience Rita Levi-Montalcini University of TurinTurinItaly

Brain plasticity-A universal tool with many variations:The study of brain plasticity has been gaining interest since almost a century and has now reached a huge amount of information(>80,000 results in PubMed).Overall,different types of plasticity,including stem cell-driven genesis of new neurons(adult neurogenesis),cells in arrested maturation(dormant neurons),neuro-glial and synaptic plasticity,can coexist and contribute to grant plastic changes in the brain,from a cellular to system level(Benedetti and Couillard-Despres,2022;Bonfanti et al.,2023).

关键词： plasticity al. arrest

Novel Methodologies for Preventing Crack Propagation in Steel Gas Pipelines Considering the Temperature Effect

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Structural Durability & Health Monitoring 2025年第1期19卷 1-23页

作者： Nurlan Zhangabay Ulzhan Ibraimova marco Bonopera Ulanbator Suleimenov Konstantin Avramov Maryna Chernobryvko Aigerim Yessengali Department of Architecture and Urban Planning Mukhtar Auezov South Kazakhstan UniversityShymkent160012Kazakhstan Department of Industrial Civil and Road Construction Mukhtar Auezov South Kazakhstan UniversityShymkent160012Kazakhstan Mechanics Sound&Vibration LaboratoryDepartment of Civil EngineeringCollege of EngineeringNational Taiwan UniversityTaipei10617Taiwan Department of Reability&Dynamic Strength A.Pidhornyi Institute of Mechanical Engineering Problems of National Academy of Sciences of UkraineKharkiv61046Ukraine

Using the software ANSYS-19.2/Explicit Dynamics,this study performedﬁnite-element modeling of the large-diameter steel pipeline cross-section for the Beineu-Bozoy-Shymkent gas pipeline with a non-through straight crack,strengthened by steel wire *** effects of the thread tensile force of the steel winding in the form of single rings at the crack edges and the wires with different winding diameters and pitches were also *** results showed that the strengthening was preferably executed at a minimum value of the thread tensile force,which was 6.4%more effective than that at its maximum *** analysis of the inﬂuence of the winding dia-meters showed that the equivalent stresses increased by 32%from the beginning of the crack growth until the wire *** increment in winding diameter decelerated the disclosure of the edge crack and reduced its length by 8.2%.The analysis of the inﬂuence of the winding pitch showed that decreasing the distance between the winding turns also led to a 33.6%reduction in the length of the straight crack and a 7.9%reduction in the maximum stres-ses on the strengthened pipeline *** analysis of the temperature effect on the pipeline material,within a range from-40℃ to+50℃,resulted in a crack length change of up to 5.8%.As the temperature dropped,the crack length *** such a temperature range,the maximum stresses were observed along the cen-tral area of the crack,which were equal to 413 MPa at+50℃ and 440 MPa at-40℃.The results also showed that the presence of the steel winding in the pipeline signiﬁcantly reduced the length of crack propagation up to 8.4 times,depending on the temperature effect and design parameters of *** work integrated the existing methods for crack localization along steel gas pipelines.

关键词： Crack propagation ﬁnite-element internal pressure prestressing steel gas pipeline temperature effect

Nano-drug delivery systems integrated with low radiation doses for enhanced therapeutic efficacy in cancer treatment

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World Journal of Clinical Cases 2025年第10期13卷 14-27页

作者： Antonio Pontoriero Paola Critelli marco Zeppieri Alberto Bosurgi Stefania Guercio Maria Caffo Filippo Flavio Angileri Silvana Parisi Salvatore Lavalle Stefano Pergolizzi Radiation Oncology Unit Department of BiomedicalDental Science and Morphological and Functional ImagesUniversity of MessinaMessina 98125Italy Department of Ophthalmology University Hospital of UdineUdine 33100Italy Neurosurgery Unit Department of BiomedicalDental Science and Morphological and Functional ImagesMessinaItalyMessina 98125Italy Lavalle Department of Medicine and SurgeryUniversity of Enna"Kore"Enna 94100Italy

BACKGROUND Precision medicine is an emerging field that includes tumor-targeted delivery and tumor *** review explores the synergistic potential of combining nano-drug delivery systems with low radiation doses to achieve optimized therapeutic outcomes,particularly in the context of cancer ***-based drug carriers offer precise and targeted delivery,enhancing the therapeutic index of anticancer *** use of lower radiation doses has become a focus in radiation oncology to minimize off-target effects on healthy tissues in palliation treatment with high-target volume *** To conduct a bibliometric review of nanomedicine and glioblastoma(GBM),all relevant studies from the last two decades were *** The search strategy comprised the keywords“nanomedicine”and“glioblastoma”in the title and/or *** English-language documents from 1 January 2000 to 31 December 2023 were considered for the analysis.R code(version 4.2.0)with R Studio(version 2022.12.0-353)and the Bibliometrix package(version 4.0.1)were used for the analysis.A total of 680 documents were *** We analyzed the bibliometric features of nanomedicine in *** the limitations of the research,our analysis aims to highlight the increasing interest of researchers in the precision medicine field in GBM treatment and lead us to suggest further studies focusing on the association between nanomedicine and *** Due to the poor prognosis associated with GBM,new therapeutic approaches are *** is an increasing interest in precision medicine,which includes nanomedicine and radiotherapy,for GBM *** integration enhances the efficacy of targeted treatments and provides a promising avenue for reducing adverse effects,signifying a notable advancement in precision oncology.

关键词： Nanomedicine Nanoparticles Drug-delivery Radiotherapy Combination therapy

Measurement of vibration frequencies of ties in masonry arches by means of a robotic total station

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Earthquake Engineering and Engineering Vibration 2022年第2期21卷 489-500页

作者： marco Gatti Dipartimento di Ingegneria University of Ferraravia Saragat 144123 FerraraItaly

Measurement of the vibration frequencies of eight ties set in masonry arches of a church by means of a robotic total station is *** instrument made continuous recordings(up to ten per second)of the three-dimensional positions of a reflector situated at 1/2 or 1/4 of the length of the tie during vertical oscillation induced by an impulsive *** recording slips,vibration amplitudes(and their accuracy),hourly diagram and experimental spectra of vibrations,and the corresponding frequencies were *** results were verified by comparing them with the vibration frequencies and indirectly the tension and fixed support constraint calculated from accelerometric *** study provides interesting information on the accuracies of the reflector′s three-dimensional coordinates,but highlighted certain limits in the application of robotized total stations for measuring vibration frequencies of ties in masonry arches.

关键词： RTS frequency vibrations ties arches

σ-Phase in Lean Duplex Stainless Steel Sheets

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Acta Metallurgica Sinica(English Letters) 2015年第3期28卷 331-337页

作者： marco Breda Massimo Pellizzari marco Frigo Industrial Engineering Department(DII) University of PadovaVia Marzolo 9Int.435131 PaduaItaly Industrial Engineering Department(DII) University of TrentoVia Mesiano 7738123 TrentoItaly Outokumpu S.p.A. Piazza Piccapietra 916121 GenoaItaly

The precipitation kinetics of secondary phases in two austeno-ferritic lean duplex stainless steels（lean DSS）were examined after aging the materials at 800 ℃.Owing to the instability of ferrite,all DSS are known to be sensitive to solid-state phase transformations in the critical temperature range 600-1,000 ℃ and different secondary phases may form,depending on composition and *** performed thermodynamic simulations revealed the proneness to the precipitation of such phases also have been done in lean DSS,but only information on the equilibrium microstructures were ***,the materials were aged at various times,in order to verify the simulations and determine the precipitation *** occurred structural modifications were observed and quantified by scanning electron microscope and X-ray diffraction measurements,determining phase type,composition and volumetric *** 800 ℃,grade 2101 was found to be only affected by Cr_2N nitrides precipitation,whereas a significant amount of σ-phase was found to form in LDX 2404 for treatment longer than 1 h,almost totally replacing ferrite after 50 *** to now,the intermetallic σ-phase has been observed only in the high alloyed DSS,and the unexpected precipitation in grade 2404 highlighted that the increased content of molybdenum in this steel might be considered as determinant for the formation.

关键词： Lean duplex stainless steels Isothermal heat treatments σ-Phase Chromium nitrides Precipitation kinetics

Elastic period of vibration calculated experimentally in buildings hosting permanent GPS stations

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Earthquake Engineering and Engineering Vibration 2018年第3期17卷 607-625页

作者： marco Gatti Department of Engineering University of Ferrara

During the earthquake in Emilia（Italy） of 2012,ca.30 permanent GPS stations were in operation within a radius of about 100 km from the epicenter,each equipped with an antenna rigidly fixed to the host building and sampling the GPS signal at a high rate（〉 1 Hz）.From the recording of the GPS measurements,the instantaneous displacements s（t） in the NorthSouth and East-West directions of the phase centers of the single GPS antennas at each permanent station during the most important seismic sequences were calculated in kinematic ***,for each of the two displacements considered as two distinct external forces,the elastic response spectra of the building were determined and from them the two periods of vibration T along two orthogonal directions coinciding with the walls of the building were *** experimentally obtained periods of vibration were compared with those inferable from the technical *** this way,a sufficiently large sample was obtained per building type,geometry（square,rectangular,regular or irregular planimetry）,height（from a minimum of 4 to a maximum of 20 m） and materials（masonry,reinforced concrete,etc.）.From the computational point of view,the study confirmed that GPS is an emerging tool for monitoring dynamic displacements and the experimentally estimated value of T is always lower than the one estimated with the formulae reported in the *** limitations of the study lie in the impossibility to choose a priori the geometry and/or structural type of the building hosting the GPS station.

关键词： permanent GPS stations Emilia-Romagna Italy earthquake period vibrations dynamic structure

Ubiquitination and PARylation cross-talk about immunity

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Molecular Plant 2021年第12期14卷 1976-1978页

作者： marco Trujillo Faculty of Biology Cell BiologyⅡUniversity of Freiburg79104 FreiburgGermany

Post-translational modifications(PTMs)allow organisms to quickly respond and acclimate to environmental *** attachment of ubiquitin and its different polymeric forms,act as signals that modulate most aspects of cellular *** is of key importance to maintain protein homeostasis during the immune response by coordinating the major degradation path-ways,namely proteasomal and vacuolar in plants(Trujillo,2021).Poly(ADP-ribosyl)ation(PARylation),has also been linked to various stress responses and shows many commonalities to ubiquitination(Rissel and Peiter,2019).Yao et al.(2021)have now uncovered a link between these two PTMs.

关键词： maintain translational polymeric

Activity-dependent remodeling of genome architecture in engram cells facilitates memory formation and recall

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Neural Regeneration Research 2022年第5期17卷 991-993页

作者： Asaf marco Neuro-Epigenetics Laboratory the Robert H.Smith Faculty of FoodEnvironment and Agriculturethe Hebrew University of JerusalemRehovol CampusIsrael

The formation and preservation of longterm memories critically depend upon coordinated activity of neuronal circuits,intracellular signaling cascades and synaptic remodeling(Josselyn et al.,2015).These essential proce... 详细信息

关键词： remodeling ngram