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Engineering 2024年第4期35卷 241-256页

作者： Shari Garrett Yongguo Zhang Yinglin Xia Jun Sun Division of Gastroenterology and Hepatology Department of MedicineUniversity of Illinois ChicagoChicagoIL 60612USA Department of Microbiology and Immunology College of MedicineUniversity of Illinois ChicagoChicagoIL 60612USA Cancer Center University of Illinois ChicagoChicagoIL 60612USA Jesse Brown VA Medical Center ChicagoIL 60612USA

Intestinal homeostasis is maintained by specialized host cells and the gut ***/β-catenin signaling is essential for gastrointestinal development and homeostasis,and its dysregulation has been implicated in inflammation and colorectal ***1 negatively regulates activated Wnt/β-catenin signaling,but little is known regarding its role in regulating host–microbial interactions in health and ***,we aim to demonstrate that intestinal Axin1 determines gut homeostasis and host response to ***1 expression was analyzed in human inflammatory bowel disease *** explore the effects and mechanism of intestinal Axin1 in regulating intestinal homeostasis and colitis,we generated new mouse models with Axin1 conditional knockout in intestinal epithelial cell(IEC;Axin1^(ΔIEC))and Paneth cell(PC;Axin1^(ΔPC))to compare with control(Axin1^(LoxP);LoxP:locus of X-over,P1)*** found increased Axin1 expression in the colonic epithelium of human inflammatory bowel disease(IBD).Axin1^(ΔIEC) mice exhibited altered goblet cell spatial distribution,PC morphology,reduced lysozyme expression,and enriched Akkermansia muciniphila(***).The absence of intestinal epithelial and PC Axin1 decreased susceptibility to dextran sulfate sodium(DSS)-induced colitis in ***1^(ΔIEC) and Axin1^(ΔPC)mice became more susceptible to DSS-colitis after cohousing with control *** with *** reduced DSS-colitis *** treatment did not change the IEC proliferation in the Axin1Loxp ***,the intestinal proliferative cells in Axin1^(ΔIEC)mice with antibiotic treatment were reduced compared with those in Axin1^(ΔIEC) mice without *** data suggest non-colitogenic effects driven by the gut *** conclusion,we found that the loss of intestinal Axin1 protects against colitis,likely driven by epithelial Axin1 and Axin1-associated *** study demonstrates a novel role of Axin1 in mediating intes

关键词： Axin1 Bacteria Microbiome inflammation Inflammatory bowel disease Immunity Microbiome Paneth cells Akkermansia muciniphila Wnt

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Targeting cholesterol trafficking to mitigate axonal degeneration in hereditary spastic paraplegia

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Neural Regeneration Research 2025年第5期20卷 1397-1398页

作者： Zhenyu Chen Xue-Jun Li Department of Biomedical Sciences University of Illinois College of Medicine RockfordRockfordILUSA Department of Bioengineering University of Illinois at ChicagoChicagoILUSA

Axonal degeneration underlies many debilitating diseases including hereditary spastic paraplegia(HSP),a genetically and clinically diverse group of disorders characterized by spasticity and weakness of the lower *** is one significant cause of chronic neurodisability due to the lack of effective treatments and a wide range of onset ages from early childhood to 70 years.

关键词： degeneration diseases hereditary

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Deep learning automation of radiographic patterns for hallux valgus diagnosis

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World Journal of Orthopedics 2024年第2期15卷 105-109页

作者： Angela Hussain Cadence Lee Eric Hu Farid Amirouche Department of Orthopaedic Surgery University of Illinois College of MedicineChicagoIL 60612United States Department of Orthopaedics Surgery University of Illinois at ChicagoChicagoIL 60612United States Department of Orthopaedic Surgery Northshore University Health SystemSkokieIL 6007United States

Artificial intelligence(AI)and deep learning are becoming increasingly powerful tools in diagnostic and radiographic *** learning has already been utilized for automated detection of pneumonia from chest radiographs,diabetic retinopathy,breast cancer,skin carcinoma classification,and metastatic lymphadenopathy detection,with diagnostic reliability akin to medical *** the World Journal of Orthopedics article,the authors apply an automated and AIassisted technique to determine the hallux valgus angle(HVA)for assessing HV foot *** the U-net neural network,the authors constructed an algorithm for pattern recognition of HV foot deformity from anteroposterior highresolution *** performance of the deep learning algorithm was compared to expert clinician manual performance and assessed alongside clinician-clinician *** authors found that the AI tool was sufficient in assessing HVA and proposed the system as an instrument to augment clinical *** further sophistication is needed to establish automated algorithms for more complicated foot pathologies,this work adds to the growing evidence supporting AI as a powerful diagnostic tool.

关键词： Artificial intelligence Hallux valgus Deep learning Automated radiography

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MEMS-actuated terahertz metamaterials driven by phase-transition materials

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Frontiers of Optoelectronics 2024年第2期17卷 23-32页

作者： Zhixiang Huang Weipeng Wu Eric Herrmann Ke Ma Zizwe A.Chase Thomas A.Searles M.Benjamin Jungfleisch Xi Wang Department of Materials Science and Engineering College of EngineeringUniversity of DelawareNewarkDE 19716USA Department of Physics and Astronomy College of Arts and SciencesUniversity of DelawareNewarkDE 19716USA Department of Electrical and Computer Engineering College of EngineeringUniversity of Illinois ChicagoChicagoIL 60607USA

The non-ionizing and penetrative characteristics of terahertz(THz)radiation have recently led to its adoption across a variety of *** effectively utilize THz radiation,modulators with precise control are *** most recent THz modulators manipulate the amplitude,frequency,or phase of incident THz radiation,considerably less progress has been made toward THz polarization *** methods for polarization control suffer from high driving voltages,restricted modulation depth,and narrow band capabilities,which hinder device performance and broader ***,an ideal THz modulator that offers high modulation depth along with ease of processing and operation is *** this paper,we propose and realize a THz metamaterial comprised of microelectromechanical systems(MEMS)actuated by the phase-transition material vanadium dioxide(VO_(2)).Simulation and experimental results of the three-dimensional metamaterials show that by leveraging the unique phase-transition attributes of VO_(2),our THz polarization modulator offers notable advancements over existing designs,including broad operation spectrum,high modulation depth,ease of fabrication,ease of operation condition,and continuous modulation *** enhanced features make the system a viable candidate for a range of THz applications,including telecommunications,imaging,and radar systems.

关键词： Metamaterials MEMS THz VO_(2) Phase-transition material

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Metabolic reprogramming by Syntenin-1 directs RA FLS and endothelial cell-mediated inflammation and angiogenesis

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Cellular & Molecular Immunology 2024年第1期21卷 33-46页

作者： Anja Meyer Stephanie R.Zack Wes Nijim Adel Burgos Vishwa Patel Brian Zanotti Michael V.Volin M.Asif Amin Myles J.Lewis Costantino Pitzalis Shiva Arami Joseph A.Karam Nadera J.Sweiss Shiva Shahrara Jesse Brown VA Medical Center ChicagoILUSA Department of Medicine Division of RheumatologyThe University of Illinois at ChicagoChicagoILUSA Department of Microbiology and Immunology Midwestern UniversityDowners GroveILUSA Division of Rheumatology and Clinical Autoimmunity Center of Excellence University of MichiganAnn ArborMIUSA Centre for Experimental Medicine and Rheumatology William Harvey Research InstituteBarts and The London School of Medicine and DentistryQueen Mary University of LondonLondonUnited Kingdom Centre for Experimental Medicine&Rheumatology William Harvey Research InstituteQueen Mary University of London and Barts NIHR BRC&NHS TrustLondonUK Department of Biomedical Sciences Humanitas Universityand Humanitas Research HospitalMilanItaly Department of Orthopedic Surgery the University of Illinois at ChicagoChicagoILUSA

A novel rheumatoid arthritis(RA)synovial fluid protein,Syntenin-1,and its receptor,Syndecan-1(SDC-1),are colocalized on RA synovial tissue endothelial cells and fibroblast-like synoviocytes(FLS).Syntenin-1 exacerbates the inflammatory landscape of endothelial cells and RA FLS by upregulating transcription of IRF1/5/7/9,IL-1β,IL-6,and CCL2 through SDC-1 ligation and HIF1α,or mTOR ***,Syntenin-1 orchestrates RA FLS and endothelial cell invasion via SDC-1 and/or mTOR *** Syntenin-1 reprogrammed endothelial cells,the dynamic expression of metabolic intermediates coincides with escalated glycolysis along with unchanged oxidative factors,AMPK,PGC-1α,citrate,and inactive oxidative ***,RA FLS rewired by Syntenin-1 displayed a modest glycolytic-ATP accompanied by a robust mitochondrial-ATP *** enriched mitochondrial-ATP detected in Syntenin-1 reprogrammed RA FLS was coupled with mitochondrial fusion and fission recapitulated by escalated Mitofusin-2 and DRP1 *** found that VEGFR1/2 and Notch1 networks are responsible for the crosstalk between Syntenin-1 rewired endothelial cells and RA FLS,which are also represented in RA *** to RA explants,morphological and transcriptome studies authenticated the importance of VEGFR1/2,Notch1,RAPTOR,and HIF1αpathways in Syntenin-1 arthritic mice and their obstruction in SDC-1 deficient ***,dysregulation of SDC-1,mTOR,and HIF1αnegated Syntenin-1 inflammatory phenotype in RA explants,while inhibition of HIF1αimpaired synovial angiogenic imprint amplified by *** conclusion,since the current therapies are ineffective on Syntenin-1 and SDC-1 expression in RA synovial tissue and blood,targeting this pathway and its interconnected metabolic intermediates may provide a novel therapeutic strategy.

关键词： Syntenin-1 Syndecan-1 RA FLS RA explants immunometabolism

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Endoscopic submucosal dissection for early gastric cancer:A major challenge for the west

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World Journal of Gastrointestinal Surgery 2024年第7期16卷 1965-1968页

作者： Francisco Schlottmann Department of Surgery University of Illinois at ChicagoChicagoIL 60612United States Department of Surgery Hospital Alemán of Buenos AiresBuenos Aires 1640-C1118AATArgentina

Gastric cancer(GC)is the 5th most common cancer and the 3rd most common cause of cancer mortality *** main endoscopic resective techniques exist for early GC(EGC):Endoscopic mucosal resection(EMR)and endoscopic submucosal dissection(ESD).ESD has been widely embraced in the last decade because it allows radical en bloc resections and is associated with better outcomes,as compared to ***,the lack of training opportunities and flat learning curve due to low volume of EGC cases represent major obstacles to obtain proficiency on ESD in the *** this procedure is highly efficient for the treatment of EGC,dedicated training programs with a stepwise approach and updated guidelines for ESD embracement are needed in Western countries.

关键词： Gastric cancer Early gastric cancer Endoscopy West Training

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Addressing metallosis in knee arthroplasty:From diagnostic challenges to innovative treatments

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World Journal of Orthopedics 2024年第5期15卷 386-389页

作者： Yvon Maurice Bogdonoff Farid Amirouche Department of Orthopedics Surgery University of Illinois at ChicagoChicagoIL 60612United States Department of Orthopedics Surgery Northshore University Health SystemSkokieIL 60076United States

In this editorial,we comment on the article by Toro et al published in the recent issue of World Journal of *** editorial review provides a comprehensive exploration of the landscape surrounding knee arthroplasty metallosis,focusing on key aspects ranging from the mechanisms influencing susceptibility to clinical implications and advanced treatment *** elucidate the complex interplay of implant design,patient-specific variables,and wear-related processes contributing to ***,we seek to shed light on diagnostic challenges,the necessity of a multidisciplinary approach,and the imperative for vigilant implant ***-on-uni revision,as a targeted treatment modality,is discussed,highlighting its potential to address metallosis in unicompartmental knee arthroplasty(UKA).There is a need for heightened awareness among clinicians regarding the subtle presentations of metallosis,coupled with the limitations of traditional imaging *** metallosis requires a collaborative,multidisciplinary approach to effectively navigate the complexities associated with this ***,the review emphasizes the evolving paradigm of personalized care,with uni-on-uni revision emerging as a promising surgical *** conclusion,the editorial outlines the dynamic nature of knee arthroplasty metallosis and its multifaceted impact on clinical *** calls for ongoing collaboration,education,and integration of innovative solutions to enhance diagnostic accuracy,proactive management,and overall patient outcomes in the realm of UKA.

关键词： Ultrasound X-ray Total knee arthroplasty Case report Review Editorial

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Characteristics and trends of pediatric firepit burns: insights for prevention and safety

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World Journal of Pediatric Surgery 2024年第1期7卷 54-58页

作者： Maria Fazal Charbel Chidiac Raheel Ahmad Oussama Issa Erica Hodgman Alejandro V Garcia Johns Hopkins School of Medicine BaltimoreMarylandUSA Department of Surgery Division of Pediatric SurgeryJohns Hopkins School of MedicineBaltimoreMarylandUSA Division of the Biological Sciences University of ChicagoChicagoIllinoisUSA School of Medicine American University of BeirutBeirutLebanon

Introduction As fire pits grow in popularity,so do the associated burn *** study examines pediatric fire pit burns characteristics to raise awareness and promote safety *** We conducted a retrospective review of pediatric patients(<21 years)with firepit burns at a tertiary care hospital from 2016 to *** Eighty-four patients were identified,of whom 70.2%were male,with a median age of 62 *** median percent total body surface area burned was 2%(interquartile range(IQR)=1-4).Thirty-five(41.7%)patients were admitted and 7(8.3%)underwent *** and trunk burns had the highest grafting rates(66%and 33%,respectively).The hands(41.7%)and the lower extremities(27.4%)were the most frequently burned body *** leading causes of burns were ashes/hot coals(34.5%),flames(31.0%),and direct contact(25.0%),often resulting from falling into the fire(59.5%)or running or playing in activities near it(26.2%).Thirty-five(41.7%)were admitted for inpatient management,while 49(58.3%)were treated as ***(13.2%)underwent at least one reconstructive surgery,7(8.4%)had at least one rehabilitation visit,and 65(77.4%)had follow-up clinic *** median length of stay was 2 days(IQR=1.0-3.5).The peak months for burns were from August through October(n=40,46.0%),with an increase observed from 10 cases in 2016to 20 cases in *** Given the significant proportion of firepit burns resulting from unsafe fire behaviors,it is crucial that caretakers are aware of proper firepit safety *** ofevidence Il.

关键词： burns admitted prevention

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Stability Investigation and Improvement for DC Cascade Systems with Simplified Impedance-based Stability Criterion

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1044-1052页

作者： Junbin Fang Zhikang Shuai Yang Li Zhibing Wang Xiangyang Wu Xia Shen Z.John Shen College of Electrical and Information Engineering Hunan UniversityChangsha 410082China Renewable Energy Department of China Electric Power Research Institute Beijing 100192China Department of Electrical and Computer Engineering Illinois Institute of TechnologyChicagoIL 60616USA IEEE

In DC distributed power systems(DPSs),the complex impedance interactions possibly lead to DC bus voltage oscillation or *** previous research,the stability analysis of DPSs is implemented based on mathematical analysis in control *** specific mechanisms of the instability of the cascade system have not been intuitively *** this paper,the stability analysis of DPSs based on the traditional Nyquist criterion is simplified to the resonance analysis of the seriesconnected port impedance(Z=R+jX)of source and load *** reveals that the essential reason for impedance instability of a DC cascade system is that the negative damping characteristic(R<0)of the port the overall impedance amplifies the internal resonance source at reactance zero-crossing *** simplified stability criterion for DC cascade systems can be concluded as:in the negative damping frequency ranges(R<0),there exists no zero-crossing point of the reactance component(i.e.,X=0).According to the proposed stability criterion,the oscillation modes of cascade systems are classified.A typical one is the internal impedance instability excited by the negative damping,and the other one is that the external disturbance amplified by negativity in a low stability ***,the impedance reshaping method for stability improvement of the system can be further *** validity of the simplified criterion is verified theoretically and experimentally by a positive damping reshaping method.

关键词： DC cascaded system,impedance model impedance reconstruction stability criterion

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Recent Progress in Reinforcement Learning and Adaptive Dynamic Programming for Advanced Control Applications

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IEEE/CAA Journal of Automatica Sinica 2024年第1期11卷 18-36页

作者： Ding Wang Ning Gao Derong Liu Jinna Li Frank L.Lewis IEEE the Faculty of Information Technology Beijing Key Laboratory of Computational Intelligence and Intelligent SystemBeijing Laboratory of Smart Environmental Protectionand Beijing Institute of Artificial IntelligenceBeijing University of TechnologyBeijing 100124China the School of System Design and Intelligent Manufacturing Southern University of Science and TechnologyShenzhen 518055China the Department of Electrical and Computer Engineering University of Illinois at ChicagoChicago IL 60607 USA the School of Information and Control Engineering Liaoning Petrochemical UniversityFushun 113001China the UTA Research Institute the University of Texas at ArlingtonArlington TX 76118 USA

Reinforcement learning(RL) has roots in dynamic programming and it is called adaptive/approximate dynamic programming(ADP) within the control community. This paper reviews recent developments in ADP along with RL and its applications to various advanced control fields. First, the background of the development of ADP is described, emphasizing the significance of regulation and tracking control problems. Some effective offline and online algorithms for ADP/adaptive critic control are displayed, where the main results towards discrete-time systems and continuous-time systems are surveyed, ***, the research progress on adaptive critic control based on the event-triggered framework and under uncertain environment is discussed, respectively, where event-based design, robust stabilization, and game design are reviewed. Moreover, the extensions of ADP for addressing control problems under complex environment attract enormous attention. The ADP architecture is revisited under the perspective of data-driven and RL frameworks,showing how they promote ADP formulation ***, several typical control applications with respect to RL and ADP are summarized, particularly in the fields of wastewater treatment processes and power systems, followed by some general prospects for future research. Overall, the comprehensive survey on ADP and RL for advanced control applications has d emonstrated its remarkable potential within the artificial intelligence era. In addition, it also plays a vital role in promoting environmental protection and industrial intelligence.

关键词： Adaptive dynamic programming(ADP) advanced control complex environment data-driven control event-triggered design intelligent control neural networks nonlinear systems optimal control reinforcement learning(RL)

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