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What is the optimal level of vitamin D in non-dialysis chronic kidney disease population?

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World Journal of Nephrology 2016年第5期5卷 471-481页

作者： Pablo Molina JoséL Górriz Mariola D Molina Sandra Beltrán Belén Vizcaíno Verónica Escudero Julia Kanter Ana Iávila Jordi Bover Elvira Fernández Javier Nieto Secundino Cigarrán Enrique Gruss Gema Fernández-Juárez alberto martínez-castelao Juan F Navarro-González Ramón Romero Luis M Pallardó Department of Nephrology Dr Peset University Hospital46017 ValenciaSpain Department of Medicine Universitat de València46005 ValenciaSpain Department of Mathematics Universidad de AlicanteSan Vicente del Raspeig03690 AlicanteSpain Department of Nephrology FundacióPuigvert080348 BarcelonaSpain Department of Nephrology Hospital Uni-versitari de LleidaIRBlleida(Institut de Reserca Biomèdica de Lleida)25198 LleidaSpain Department of Nephrology Hospital General Universitario de Ciudad Real13005 Ciudad RealSpain Department of Nephrology Hospital da Costa Burela7880 LugoSpain Department of Nephrology Hospital Universitario Fundación Alcorcón28922 MadridSpain Department of Nephrology Hospital Universitario de BeellvitgeIDIBELLL'Hospitalet de Llobregat08907 BarcelonaSpain Research Unit and Department of Nephrology University Hospital Nuestra Senora de Candelaria38010 Santa Cruz de TenerifeSpain Department of Medicine Universitat Autònoma de Barcelona08193 BarcelonaSpain

AIM To evaluate thresholds for serum 25(OH)D concentrations in relation to death, kidney progression and hospitalization in non-dialysis chronic kidney disease(CKD) *** Four hundred and seventy non-dialysis 3-5 stage CKD patients participating in OSERCE-2 study, a prospective, multicenter, cohort study, were prospectively evaluated and categorized into 3 groups according to 25(OH)D levels at enrollment(less than 20 ng/mL, between 20 and 29 ng/mL, and at or above 30 ng/mL), considering 25(OH)D between 20 and 29 ng/mL as reference group. Association between 25(OH)D levels and death(primary outcome), and time to first hospitalization and renal progression(secondary outcomes) over a 3-year followup, were assessed by Kaplan-Meier survival curves and Cox-proportional hazard models. To identify 25(OH)D levels at highest risk for outcomes, receiver operating characteristic(ROC) curves were *** Over 29 ± 12 mo of follow-up, 46(10%) patients dead, 156(33%) showed kidney progression, and 126(27%) were hospitalized. After multivariate adjustment, 25(OH)D < 20 ng/mL was an independent predictor of all-cause mortality(HR = 2.33; 95%CI: 1.10-4.91; P = 0.027) and kidney progression(HR = 2.46; 95%CI: 1.63-3.71; P < 0.001), whereas the group with 25(OH)D at or above 30 ng/mL did not have a different hazard for outcomes from the reference group. Hospitalization outcomes were predicted by 25(OH) levels(HR = 0.98; 95%CI: 0.96-1.00; P = 0.027) in the unadjusted Cox proportional hazards model, but not after multivariate adjusting. ROC curves identified 25(OH)D levels at highest risk for death, kidney progression, and hospitalization, at 17.4 ng/mL [area under the curve(AUC) = 0.60; 95%CI: 0.685-0.69; P = 0.027], 18.6 ng/mL(AUC = 0.65; 95%CI: 0.60-0.71; P < 0.001), and 19.0 ng/m L(AUC = 0.56; 95%CI: 0.50-0.62; P = 0.048), ***25(OH)D < 20 ng/mL was an independent predictor of death and progression in patients with stage 3-5 CKD, with no addit

关键词： Vitamin D Chronic kidney disease Mortality Renal progression Hospitalization

Amyloid-beta pathology-induced nanoscale synaptic disruption:the case of the GABA_B-GIRK assembly

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Neural Regeneration Research 2025年第5期20卷 1409-1410页

作者： Rafael Lujan Alejandro martín-Belmonte Sergi Ferré Francisco Ciruela Synaptic Structure Laboratory Instituto de Biomedicina de la UCLM(IB-UCLM)Departamento de Ciencias MédicasInstituto de Investigación en Salud de Castilla-La Mancha(IDISCAM)Facultad de MedicinaUniversidad Castilla-La ManchaCampus BiosanitarioC/AlmansaAlbaceteSpain Integrative Neurobiology Section National Institute on Drug AbuseIntramural Research ProgramNational Institutes of HealthBaltimoreMDUSA Pharmacology Unit Department of Pathology and Experimental TherapeuticsSchool of Medicine and Health SciencesInstitute of NeurosciencesUniversity of BarcelonaNeuropharmacology&Pain GroupNeuroscience ProgramBellvitge Institute for Biomedical ResearchL’Hospitalet de LlobregatSpain

Alzheimer's disease (AD) is characterized by an imbalance between excitatory and inhibitory brain networks,leading to aberrant homeostatic synaptic *** has progressively been recognized as syna ptopathy and syna ptic dysfunction has been identified as a key component of its pathogenesis (Schirinzi et al.,2020).Syna ptic dysfunction is believed to precede synapse loss,a primary biological correlate of cognitive decline in AD,inevita bly associated with neuronal death.

关键词： Alzheimer pathology

5DGWO-GAN:A Novel Five-Dimensional Gray Wolf Optimizer for Generative Adversarial Network-Enabled Intrusion Detection in IoT Systems

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Computers, Materials & Continua 2025年第1期82卷 881-911页

作者： Sarvenaz Sadat Khatami Mehrdad Shoeibi Anita Ershadi Oskouei Diego martín Maral Keramat Dashliboroun Department of Data Science Engineering University of HoustonHoustonTX 77204USA The WPI Business School Worcester Polytechnic InstituteWorcesterMA 01609USA School of Systems and Enterprises Stevens Institute of TechnologyHobokenNJ 07030USA Department of Computer Science Escuela de Ingeniería Informática de SegoviaUniversidad de ValladolidSegovia40005Spain Ernest G.Welch School of Art&Design Georgia State UniversityAtlantaGA 30303USA

The Internet of Things(IoT)is integral to modern infrastructure,enabling connectivity among a wide range of devices from home automation to industrial control *** the exponential increase in data generated by these interconnected devices,robust anomaly detection mechanisms are *** detection in this dynamic environment necessitates methods that can accurately distinguish between normal and anomalous behavior by learning intricate *** paper presents a novel approach utilizing generative adversarial networks(GANs)for anomaly detection in IoT ***,optimizing GANs involves tuning hyper-parameters such as learning rate,batch size,and optimization algorithms,which can be challenging due to the non-convex nature of GAN loss *** address this,we propose a five-dimensional Gray wolf optimizer(5DGWO)to optimize GAN *** 5DGWO introduces two new types of wolves:gamma(γ)for improved exploitation and convergence,and theta(θ)for enhanced exploration and escaping local *** proposed system framework comprises four key stages:1)preprocessing,2)generative model training,3)autoencoder(AE)training,and 4)predictive model *** generative models are utilized to assist the AE training,and the final predictive models(including convolutional neural network(CNN),deep belief network(DBN),recurrent neural network(RNN),random forest(RF),and extreme gradient boosting(XGBoost))are trained using the generated data and AE-encoded *** evaluated the system on three benchmark datasets:NSL-KDD,UNSW-NB15,and *** conducted on diverse IoT datasets show that our method outperforms existing anomaly detection strategies and significantly reduces false *** 5DGWO-GAN-CNNAE exhibits superior performance in various metrics,including accuracy,recall,precision,root mean square error(RMSE),and convergence *** proposed 5DGWO-GAN-CNNAE achieved the lowest RMSE values across the NSL-KDD,UNSW-NB15,and

关键词： Internet of things intrusion detection generative adversarial networks five-dimensional binary gray wolf optimizer deep learning

Tracking of iron-labeled human neural stem cells by magnetic resonance imaging in cell replacement therapy for Parkinson＇s disease

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Neural Regeneration Research 2016年第1期11卷 49-52页

作者： Milagros Ramos-Gómez alberto martínez-Serrano Centre for Biomedical Technology Polytechnic University of Madrid Madrid Spain Biomedical Research Networking'Center of Bioengineering Biomaterials and Nanomedicine (CIBER-BBN) Madrid Spain Department of Molecular Biology and Center of Molecular Biology"Severo Ochoa" Autonomous University of Madrid-C.S.I.C Madrid Spain

Human neural stem cells（h NSCs） derived from the ventral mesencephalon are powerful research tools and candidates for cell therapies in Parkinson＇s disease. However, their clinical translation has not been fully realized due, in part, to the limited ability to track stem cell regional localization and survival over long periods of time after in vivo transplantation. Magnetic resonance imaging provides an excellent non-invasive method to study the fate of transplanted cells in vivo. For magnetic resonance imaging cell tracking, cells need to be labeled with a contrast agent, such as magnetic nanoparticles, at a concentration high enough to be easily detected by magnetic resonance imaging. Grafting of human neural stem cells labeled with magnetic nanoparticles allows cell tracking by magnetic resonance imaging without impairment of cell survival, proliferation, self-renewal, and multipotency. However, the results reviewed here suggest that in long term grafting, activated microglia and macrophages could contribute to magnetic resonance imaging signal by engulfing dead labeled cells or iron nanoparticles dispersed freely in the brain parenchyma over time.

关键词： human neural stem cells Parkinson's disease magnetic resonance imaging magnetic nanoparticles stem cell transplantation

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Neural Regeneration Research 2021年第1期16卷 123-124页

作者： Carlos Bueno Salvador martínez Instituto de Neurociencias de Alicante(UMH-CSIC) San JuanAlicanteSpain

Human neurological disorders and spinal cord injuries are caused by a loss of neurons and glial cells in the brain or spinal *** proof-ofprinciple of cell therapy is that replacing damaged cells with new healthy ones will restore the lost *** and manipulating autologous neural stem cells(NSCs)could provide an ideal source of cells for use in cell replacement and the transfer of genes to a diseased central nervous *** are immature cells present,not only during embryonic development,but also in the adult brain of all mammalian species,including *** presence of NSCs in the adult mammalian brain has been described in two neurogenic niches,the ventricular-subventricular zone(V-SVZ)of the anterolateral ventricle wall and the subgranular zone of the hippocampal dentate ***,NSCs are defined as self-renewing multipotent cells that can generate neurons,astrocytes and *** major barrier to isolating adult NSCs in humans is the inaccessibility of living *** this reason,an enormous effort has been made to derive neurons from human adult stem cells isolated from various tissue sources.

关键词： injuries ventricular adult

Tongluo Jiedu as an adjuvant therapy for oral cancer

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World Journal of Clinical Cases 2025年第5期13卷 52-57页

作者： Sarah Monserrat Lomelímartínez Melissa martínez Nieto Ana Esther Mercado González Department of Medical and Life Sciences Centro Universitario de la CiénegaUniversidad de GuadalajaraOcotlán 47810Mexico Department of Well-being and Sustainable Development Centro Universitario del NorteUniversidad de GuadalajaraColotlan 46200Mexico Independent Researcher Guadalajara 44340Mexico Antiguo Hospital Civil de Guadalajara“Fray Antonio Alcalde” Universidad de GuadalajaraGuadalajara 44280Mexico

Oral cancer is one of the malignant neoplasms that present major global health *** is the sixth most prevalent type of cancer in the world,with a high incidence and mortality *** letter is a review of the study by Yin et al which was published in the World Journal of Clinical Cases(2024).The study evaluated the effect of Tongluo Jiedu as an adjuvant treatment for oral *** the years,there has been a continuous search for effective and less invasive treatments for oral *** article emphasizes and discusses various therapeutic options currently available,and it highlights that early intervention and multidisciplinary management are crucial for improving *** Chinese medicine,particularly Tongluo Jiedu,presents potential complementary approach to co-nventional oral cancer *** research on Tongluo Jiedu should be focused on validation of its efficacy and safety through large,well-designed clinical trials,as well as better understanding of the molecular mechanisms in-volved,and optimization of therapeutic ***,continuous education of health professionals is key to the effective and safe integration of this traditional medicine into clinical *** research is essential for optimization of therapeutic strategies and for addressing the challenges presented by this neoplasm.

关键词： Oral cancer Tongluo Jiedu Traditional Chinese medicine Chinese herbal medicine Herbal drugs Dentistry

Use of recycled concrete aggregates in asphalt mixtures for pavements:A review

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Journal of Traffic and Transportation Engineering(English Edition) 2022年第5期9卷 725-741页

作者： Juan Gabriel Bastidas-martínez Fredy alberto Reyes-Lizcano Hugo Alexander Rondón-Quintana Faculty of Engineering Universidad Piloto de ColombiaBogotáDC 110231Colombia Faculty of Engineering Pontificia Universidad JaverianaBogotáDC 110131Colombia Facultad del Medio Ambiente y Recursos Naturales Universidad Distrital Francisco Joséde CaldasBogotáDC 110131Colombia

Large quantities of natural aggregates(NA)are required in the manufacturing of asphalt mixtures for *** extraction of NA generates high environmental impacts that negatively affect environmental preservation and *** alternative materials obtained in construction and demolition processes in civil construction worked have been studies as possible replacements for NA,with the purpose of reducing these environmental *** foregoing study presents a state of knowledge review referring to the use of recycled concrete aggregates(RCA)when these are used in the manufacturing of asphalt mixtures(mainly hot-mix asphalt HMA type).Environmental aspects are presented,as well as possible benefits and limitations of using RCA as replacements for NA in asphalt ***,it is not possible to establish a behavior pattern,since the characteristics of the RCA are very heterogeneous and vary from the original source of the *** is highlighted from the literature that RCA has a wide potential for use in the manufacture of asphalt mixtures,since in most studies,the mixtures with these materials comply the quality requirements contemplated by the construction specifications,mainly in low-volume ***,based on the literature review,some recommendations and suggestions are presented for future research.

关键词： Recycled concrete aggregates Asphalt mixtures Mechanical properties Volumetric composition

Proteomic profile of human monocytic cells infected with dengue virus

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Asian Pacific Journal of Tropical Biomedicine 2016年第11期6卷 914-923页

作者： Viviana martínez-Betancur Marleín martínez-Gutierrez Programa de Estudio y Control de Enfermedades Tropicales-PECET Universidad de Antioquia Grupo de Investigación en Ciencias Animales-GRICA Facultad de Medicina Veterinaria y Zootecnia Universidad Cooperativa de Colombia

Objective: To identify the changes in the proteome of U937 cells infected with dengue virus(DENV).Methods: In this study, differentiated U937 cultures were infected with two DENV-2strains, one of which was associated with dengue(DENV-2/NG) and the other one with severe dengue(DENV-2/16681), with the aim of determining the cellular proteomic profiles under different infection conditions. Cellular proteins were extracted and separated by two-dimensional electrophoresis, and those proteins with differential expression profiles were identified by mass spectrometry. The obtained results were correlated with cellular viability, the number of infectious viral particles, and the viral DNA/protein ***: In comparison with non-infected cultures, in the cells infected with the DENV-2/NG strain, nine proteins were expressed differentially(five were upregulated and four were downregulated); in those cultures infected with the DENV-2/16681 strain, six proteins were differentially expressed(two were downregulated and four were upregulated). The downregulated proteins included fatty acid-binding protein, heterogeneous nuclear ribonucleoprotein 1, protein disulfide isomerase, enolase 1, heat shock 70 k Da protein 9, phosphotyrosyl phosphatase, and annexin IV. The upregulated proteins included heat shock 90 k Da protein AA1, tubulin beta, enolase 1, pyruvate kinase,transaldolase and phospholipase ***: Because the monocyte/macrophage lineage is critical for disease pathogenicity, additional studies on these proteins could provide a better understanding of the cellular response to DENV infection and could help identify new therapeutic targets against infection.

关键词： Dengue virus Proteomic Macrophages Monocytes U937 cells

Adaptive phase field modelling of crack propagation in orthotropic functionally graded materials

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Defence Technology（防务技术） 2021年第1期17卷 185-195页

作者： Hirshikesh Emilio martínez-Paneda Sundararajan Natarajan Department of Mechanical Engineering Indian Institute of Technology MadrasChennai600036India Department of Civil and Environmental Engineering Imperial College LondonLondonSW72AZUK

In this work,we extend the recently proposed adaptive phase field method to model fracture in orthotropic functionally graded materials(FGMs).A recovery type error indicator combined with quadtree decomposition is employed for adaptive mesh *** proposed approach is capable of capturing the fracture process with a localized mesh refinement that provides notable gains in computational *** implementation is validated against experimental data and other numerical experiments on orthotropic materials with different material *** results reveal an increase in the stiffness and the maximum force with increasing material orientation *** study is then extended to the analysis of orthotropic *** is observed that,if the gradation in fracture properties is neglected,the material gradient plays a secondary role,with the fracture behaviour being dominated by the orthotropy of the ***,when the toughness increases along the crack propagation path,a substantial gain in fracture resistance is observed.

关键词： Functionally graded materials Phase field fracture Polygonal finite element method Orthotropic materials Recovery based error indicator