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Single low-dose lipopolysaccharide preconditioning:neuroprotective against axonal injury and modulates glial cells

Neuroimmunology and Neuroinflammation 2017年第1期4卷 6-15页

作者： Ryan C.Turner zachary j.naser Brandon P.Lucke-Wold Aric F.Logsdon Reyna L.Vangilder Rae R.Matsumoto jason D.Huber Charles L.Rosen Department of Neurosurgery West Virginia UniversitySchool of MedicineMorgantownWV26506USA Center for Neuroscience West Virginia UniversitySchool of MedicineMorgantownWV 26506USA Department of Basic Pharmaceutical Sciences West Virginia UniversitySchool of PharmacyMorgantownWV 26506USA Center for Health Restoration West Virginia UniversitySchool of NursingMorgantownWV 26506USA

Aim:Over 7 million traumatic brain injuries (TBI) are reported each year in the United ***,treatments and neuroprotection following TBI are limited because secondary injury cascades are poorly *** (LPS) administration before controlled cortical impact can contribute to ***,the underlying mechanisms and whether LPS preconditioning confers neuroprotection against closed-head injuries remains ***:The authors hypothesized that preconditioning with a low dose of LPS (0.2 mg/kg) would regulate glial reactivity and protect against diffuse axonal injury induced by weight *** was administered 7 days prior to *** administration reduced locomotion,which recovered completely by time of ***:LPS preconditioning significantly reduced the post-injury gliosis response near the corpus callosum,possibly by downregulating the oncostatin M *** novel findings demonstrate a protective role of LPS preconditioning against diffuse axonal *** preconditioning successfully prevented neurodegeneration near the corpus callosum,as measured by fluorojade ***:Further work is required to elucidate whether LPS preconditioning confers long-term protection against behavioral deficits and to elucidate the biochemical mechanisms responsible for LPS-induced neuroprotective effects.

关键词： Lipopolysaccharide preconditioning oncostatin M receptor diffuse axonal injury gliosis neuroprotection

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Spastin and alsin protein interactome analyses begin to reveal key canonical pathways and suggest novel druggable targets

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Neural Regeneration Research 2025年第3期20卷 725-739页

作者： Benjamin R.Helmold Angela Ahrens zachary Fitzgerald P.Hande Ozdinler Department of Neurology Feinberg School of MedicineNorthwestern UniversityChicagoILUSA Center for Molecular Innovation and Drug Discovery Center for Developmental TherapeuticsChemistry of Life Processes InstituteNorthwestern UniversityEvanstonILUSA Mesulam Center for Cognitive Neurology and Alzheimer’s Disease Feinberg School of MedicineNorthwestern UniversityChicagoILUSA Feinberg School of Medicine Les Turner ALS Center at Northwestern UniversityChicagoILUSA

Developing effective and long-term treatment strategies for rare and complex neurodegenerative diseases is challenging. One of the major roadblocks is the extensive heterogeneity among patients. This hinders understanding the underlying disease-causing mechanisms and building solutions that have implications for a broad spectrum of patients. One potential solution is to develop personalized medicine approaches based on strategies that target the most prevalent cellular events that are perturbed in patients. Especially in patients with a known genetic mutation, it may be possible to understand how these mutations contribute to problems that lead to neurodegeneration. Protein–protein interaction analyses offer great advantages for revealing how proteins interact, which cellular events are primarily involved in these interactions, and how they become affected when key genes are mutated in patients. This line of investigation also suggests novel druggable targets for patients with different mutations. Here, we focus on alsin and spastin, two proteins that are identified as “causative” for amyotrophic lateral sclerosis and hereditary spastic paraplegia, respectively, when mutated. Our review analyzes the protein interactome for alsin and spastin, the canonical pathways that are primarily important for each protein domain, as well as compounds that are either Food and Drug Administration–approved or are in active clinical trials concerning the affected cellular pathways. This line of research begins to pave the way for personalized medicine approaches that are desperately needed for rare neurodegenerative diseases that are complex and heterogeneous.

关键词： ALS2 alsin amyotrophic lateral sclerosis hereditary spastic paraplegia neurodegenerative diseases personalized medicine precision medicine protein interactome protein-protein interactions SPAST spastin

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Xiamen after 20 Years of Ecological Transformation

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China Today 2025年第1期74卷 66-68页

作者： zachary G.LUNDQUIST 不详

The efforts Xiamen has made in ecological protection over the last 20 years have helped it become a beautiful and clean *** years ago,I had the opportunity to travel to the city of Xiamen in southeastern China’s Fujian ***,due to the fact that I was in a rush,I did not have the chance to see the whole *** memory of Xiamen was its pleasant climate and unforgettable beauty-I knew if I ever got the opportunity,I would revisit this *** years went by until I was able to return to this city *** emerging from the airport,I realized that I had grown older,while Xiamen was becoming increasingly youthful and *** exactly had given this city such vitality?

关键词： Ecological Xiamen Transformation

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Update in the treatment of intracranial atherosclerotic disease

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Stroke & Vascular Neurology 2020年第1期5卷 59-64页

作者： zachary R Barnard Michael j Alexander Neurosurgery Cedars-Sinai Medical CenterLos AngelesCaliforniaUSA

This review highlights the recent evolution of the imaging,medical management,surgical options and endovascular therapies for symptomatic intracranial atherosclerotic disease(ICAD).Recent imaging developments including optical coherence tomography and other modalities to assess the intracranial arteries for symptomatic ICAD are reviewed,not only to diagnose ICAD but to determine if ICAD plaques have any high-risk features for *** future developments in the treatment of ICAD are discussed,including the development of trackable drug-coated balloons for the cerebral circulation to treat primary or restenotic arteries,new iterations of self-expanding intracranial stents with easier delivery systems,and the re-examination of indirect surgical bypass techniques for *** addition to these important technological developments,however,is the evolving evidence regarding the best treatment window for these techniques and additional factors in medical management which can improve patient outcomes in this devastating pathology.

关键词： intracranial balloon arteries

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Evolutionary diversity as a catalyst for biological discovery

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Integrative Zoology 2018年第6期13卷 616-633页

作者： zachary V.jOHNSON Larry j.YOUNG School of Biological Sciences Georgia Institute of TechnologyAtlantaGeorgiaUSA Center for Translational Social Neuroscience Silvio O.Conte Center for Oxytocin and Social CognitionDepartment of Psychiatry and Behavioral SciencesYerkes National Primate Research CenterEmory UniversityAtlantaGeorgiaUSA

The tremendous diversity of animal behaviors has inspired generations of scientists from an array of biological *** complement investigations of ecological and evolutionary factors contributing to behavioral evolution,modern sequencing,gene editing,computational and neuroscience tools now provide a means to discover the proximate mechanisms upon which natural selection acts to generate behavioral *** behaviors are motivated behaviors that can differ tremendously between closely related species,suggesting phylogenetic plasticity in their underlying biological *** addition,convergent evolution has repeatedly given rise to similar forms of social behavior and mating systems in distantly related *** behavioral divergence and convergence provides an entry point for understanding the neurogenetic mechanisms contributing to behavioral *** argue that the greatest strides in discovering mechanisms contributing to social behavioral diversity will be achieved through integration of interdisciplinary comparative approaches with modern tools in diverse species *** review recent advances and future potential for discovering mechanisms underlying social behavioral variation;highlighting patterns of social behavioral evolution,oxytocin and vasopressin neuropeptide systems,genetic/transcriptional“toolkits,”modern experimental tools,and alternative species systems,with particular emphasis on Microtine rodents and Lake Malawi cichlid fishes.

关键词： cichlids oxytocin and vasopressin social behavior toolkits voles

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The extended renin-angiotensin system: a promising target for traumatic brain injury therapeutics

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Neural Regeneration Research 2020年第6期15卷 1025-1026页

作者： zachary C.janatpour Aviva j.Symes Department of Pharmacology Uniformed Services University

Traumatic brain injury(TBI)is a leading cause of death and disability *** assessments estimate that over 27 million cases of TBI occur annually,resulting in over 8 million years lived with disability(GBD 2016 Dementia Collaborators,2019).Over 30 clinical trials have failed to show efficacy in TBI,and patients are currently left without any promising therapeutic options(Villapol et al.,2015).The pathophysiology of TBI is commonly divided into primary and secondary *** injury refers to the parenchymal damage that occurs as an immediate consequence of acute kinetic energy transfer to the brain(i.e.,membrane rupture,hemorrhage,axotomy,etc.).Secondary injury encompasses the deleterious molecular and cellular responses that occur in response to the primary injury in the minutes,hours or days *** search for therapeutics that mitigate the effects of the secondary injury and/or assist endogenous repair processes remains a large focus of TBI research(Umschweif et al.,2014;Villapol et al.,2015;janatpour et al.,2019).

关键词： injuries endogenous injury

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Stability Analysis and Performance Evaluation of Additive Mixed-Precision Runge-Kutta Methods

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Communications on Applied Mathematics and Computation 2024年第1期6卷 705-738页

作者： Ben Burnett Sigal Gottlieb zachary j.Grant Center for Scientific Computing and Data Science Research UMass DartmouthNorth DartmouthMassachusettsUSA CSME Michigan State UniversityEast LansingMichiganUSA

Additive Runge-Kutta methods designed for preserving highly accurate solutions in mixed-precision computation were previously proposed and *** specially designed methods use reduced precision for the implicit computations and full precision for the explicit *** this work,we analyze the stability properties of these methods and their sensitivity to the low-precision rounding errors,and demonstrate their performance in terms of accuracy and *** develop codes in FORTRAN and julia to solve nonlinear systems of ODEs and PDEs using the mixed-precision additive Runge-Kutta(MP-ARK)*** convergence,accuracy,and runtime of these methods are *** show that for a given level of accuracy,suitably chosen MP-ARK methods may provide significant reductions in runtime.

关键词： Mixed precision Runge-Kutta methods Additive methods Accuracy

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What strategies are implied by STRATEGY?

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Science China(Life Sciences) 2017年第3期60卷 319-320页

作者： zachary Bloomgarden Department of Medicine Icahn School of Medicine at Mount SinaiNew York NY 10029USA

Weng and coauthors enrolled 5,535 type 2 diabetic patients in a study of the combined effect of metformin with sitagliptin,nearly half achieving HbAlc〈7.0%,with an average 0.85%fall from a baseline of 8.03%.This supp... 详细信息

关键词：隐含二甲双胍 2型糖尿病联合效应抑制剂

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A decision framework for identifying models to estimate forest ecosystem services gains from restoration

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Forest Ecosystems 2016年第2期3卷 126-137页

作者： zachary L. Christin Kenneth j. Bagstad Michael A. Verdone Earth Economics 107 N Tacoma Ave Tacoma WA 98403 USA. U.S. Geological Survey Geosciences & Environmental Change Science Center Box 25046 MS 980 Denver CO 80225 USA. International Union for the Conservation of Nature 1630 Connecticut Ave. NW #300 Washington DC 20009 USA.

Restoring degraded forests and agricultural lands has become a global conservation priority. A growing number of tools can quantify ecosystem service tradeoffs associated with forest restoration. This evolving ＂tools landscape＂ presents a dilemma： more tools are available, but selecting appropriate tools has become more challenging. We present a Restoration Ecosystem Service Tool Selector （RESTS） framework that describes key characteristics of 13 ecosystem service assessment tools. Analysts enter information about their decision context, services to be analyzed, and desired outputs. Tools are filtered and presented based on five evaluative criteria： scalability, cost, time requirements, handling of uncertainty, and applicability to benefit-cost analysis. RESTS uses a spreadsheet interface but a web-based interface is planned. Given the rapid evolution of ecosystem services science, RESTS provides an adaptable framework to guide forest restoration decision makers toward tools that can help quantify ecosystem services in support of restoration.

关键词： Decision support Ecosystem services Forest restoration Modeling Valuation Comparative toolsassessment

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A Multi-Point Distance-Bounding Protocol for Securing Automatic Dependent Surveillance-Broadcast in Unmanned Aerial Vehicle Applications

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journal of Computer Science & Technology 2020年第4期35卷 825-842页

作者： zachary P.Languell Qijun Gu Department of Computer Science Texas State UniversitySan MarcosTX 78666USA

The Automatic Dependent Surveillance-Broadcast(ADS-B)protocol is being adopted for use in unmanned aerial vehicles(UAVs)as the primary source of information for emerging multi-UAV collision avoidance *** lack of security features in ADS-B leaves any processes dependent upon the information vulnerable to a variety of threats from compromised and dishonest *** could result in substantial losses or damage to *** research proposes a new distance-bounding scheme for verifying the distance and flight trajectory in the ADS-B broadcast data from surrounding *** proposed scheme enables UAVs or ground stations to identify fraudulent UAVs and avoid *** scheme was implemented and tested in the ArduPilot SITL(Software In The Loop)simulator to verify its ability to detect fraudulent *** experiments showed that the scheme achieved the desired accuracy in both flight trajectory measurement and attack detection.

关键词： automatic dependent surveillance-broadcast (ADS-B) unmanned aerial vehicle (UAV) distance bounding collision airspace safety

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