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Spatial distribution and network morphology of epicardial,endocardial,interstitial,and Purkinje cell-associated elastin fibers in porcine left ventricle

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Bioactive Materials 2023年第1期19卷 348-359页

作者： Xiaodan Shi Song Zhang Yue liu Bryn Brazile Jim Cooley J.Ryan Butler Sara R.McMahan karla l.perez Jiazhu Xu Timothy Eastep Kytai T.Nguyen Pietro Bajona Matthias Peltz Huajian Gao Yi Hong Jun liao Department of Bioengineering University of Texas at ArlingtonArlingtonTX76010USA College of Engineering and College of Veterinary Medicine Mississippi State UniversityMississippi StateMS39762USA School of Engineering Brown UniversityProvidenceRI02912USA College of Engineering Nanyang Technical University308232Singapore Department of Cardiovascular and Thoracic Surgery University of Texas Southwestern Medical CenterDallasTX75390USA Allegheny Health Network-Drexel University College of Medicine PittsburghPA15212USA

Cardiac extracellular matrices(ECM)play crucial functional roles in cardiac *** studies have mainly focused on collagen,the major structural ECM in heart *** role of elastin in cardiac mechanics,however,is poorly *** this study,we investigated the spatial distribution and microstructural morphologies of cardiac elastin in porcine left *** demonstrated that the epicardial elastin network had location-and depth-dependency,and the overall epicardial elastin fiber mapping showed certain correlation with the helical heart muscle fiber *** compared to the epicardial layer,the endocardial layer was thicker and has a higher elastin-collagen ratio and a denser elastin fiber network;moreover,the endocardial elastin fibers were finer and more wavy than the epicardial elastin fibers,all suggesting various interface *** myocardial interstitial elastin fibers co-exist with the perimysial collagen to bind the cardiomyocyte bundles;some of the interstitial elastin fibers showed a locally aligned,hinge-like structure to connect the adjacent cardiomyocyte *** collagen-elastin combination reflects an optimal design in which the collagen provides mechanical strength and elastin fibers facilitate recoiling during ***,cardiac elastin fibers,along with collagen network,closely associated with the Purkinje cells,indicating that this ECM association could be essential in organizing cardiac Purkinje cells into“fibrous”and“branching”morphologies and serving as a protective feature when Purkinje fibers experience large deformations in *** short,our observations provide a structural basis for future in-depth biomechanical investigations and biomimicking of this long-overlooked cardiac ECM component.

关键词： Heart ECM Epicardial elastin Endocardial elastin Interstitial elastin Purkinje-cell associated elastin

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*** model of riboflavin transporter deficiency(RTD)disorder reveals deficits in synaptic transmission and movement

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Genes & Diseases 2024年第4期11卷 120-123页

作者： Ramesh K.Narayanan Gonzalo perez-siles Kamila A.Marzec Alexandra Boyling Brent Neumann Manoj P.Menezes Marina l.Kennerson Northcott Neuroscience laboratory ANZAC Research Institute-Sydney Local Health DistrictSydneyNSW 2139Australia Sydney Medical School University of SydneySydneyNSw 2050Australia ANZAC Research Institute-Sydney local Health District SydneyNSW 2139Australia Neuroscience Program Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental BiologyMonash UniversityMelbourneVictoria 3800Australia TY Nelson Department of Neurology and Neurosurgery and Kids Neuroscience Children's Hospital at WestmeadWestmeadSydneyNSW2145Australia Paediatrics and Child Health The University of SydneySydneySydneyNSW 2145Australia Molecular Medicine laboratory Concord General Repatriation HospitalSydneyNSW 2139Australia

Riboflavin transporter deficiency(RTD),previously known as Brown-Vialetto-Van laere syndrome,is a childhoodonset neurodegenerative disorder characterized by sensory and motor neuron degeneration causing ataxia,muscle weakness,optic atrophy,and respiratory *** in SlC52A2 and SlC52A3,solute carrier family members that encode riboflavin(RF)transporters RFVT2 and RFVT3,are known to cause RTD types 2 and 3,respectively.

关键词： RTD degeneration TD

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Patellar reconstruction in primary total knee arthroplasty using bone chips from routine cuts:A case report and review of literature

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World Journal of Methodology 2024年第2期14卷 158-166页

作者： Juan Ignacio perez-Abdala Franco l De Cicco Tomas Nicolino Juan Astoul Institute of Orthopaedics“Carlos E.Ottolenghi” Italian Hospital of Buenos AiresCapital Federal 1198Argentina

BACKGROUND Total patellectomy is currently reserved for exceptional cases,such as recalcitrant patellofemoral instability and comminuted fractures,due to its demonstrated negative impact on knee ***,managing patellectomy is crucial to mitigate its inherent deleterious *** techniques have been described,including autologous or allogeneic bone grafts for reconstruction and soft tissue realignment to enhance the extensor *** SUMMARY A 73-year-old male underwent a patellectomy due to a comminuted fracture,subsequently developing osteoarthritis and experiencing a decline in functional *** with total knee replacement,we conducted a patellar reconstruction,incorporating routine bone cuts and utilizing bone chips to fashion a new *** intervention resulted in the restoration of full extension and improvement of knee *** Patellar reconstruction demonstrates benefits on knee mechanics and stabilization,contributing to enhanced outcomes and satisfaction following knee *** present an affordable technique for managing patellectomized patients undergoing total knee replacement.

关键词： Patellectomy Patella Reconstruction Knee arthroplasty Autologous bone Knee osteoarthritis Case report

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Geochemistry and mineralogy of beach sediments in the northern Gulf of Mexico,Tamaulipas state,Mexico:implication for provenance

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Journal of Palaeogeography 2024年第3期13卷 375-400页

作者： Mayank Shukla Sanjeet K.Verma Mayla A.Ramos-Vázquez John S.Armstrong-Altrin karla R.Hernández-Martínez Sumit Mishra Vivek P.Malviya Héctor Hernández-Mendoza Posgrado de la Division de Geociencias Aplicadas Instituto Potosino de Investigacion Científica y Tecnologica(IPICYT)Camino a la Presa San José2055San Luis Potosí78216Mexico Division de Geociencias Aplicadas Instituto Potosino de Investigación Científica y Tecnologica(IPICYT)Camino a la Presa San Jose 2055San Luis Potosí78216Mexico Universidad Nacional Autonoma de México Instituto de Ciencias del Mar y LimnologíaUnidad de ProcesosOceanicos y CosterosCiudad UniversitariaCiudad de México 04510Mexico Department of Marine Sciences Bharathidasan UniversityTiruchirappalli620024Tamil NaduIndia Instituto de Geociencias Universidad Nacional Autonoma de MéxicoBoulevard Juriquilla 300176230JuriquillaQueretaroMexico Department of Applied Geology Dr.Harisingh Gour Central UniversitySagar470002Madhya PradeshIndia Instituto de Investigacion de Zonas Desérticas Universidad Autònoma de San Luis PotosíAltair 200CP 78377San LuisS.L.P.Mexico Universidad del Centro de Mexico Capitán Caldera 75CP 78250San LuisS.L.P.Mexico

Geochemical and mineralogical studies were performed in the la Pesca(lP)and Tesoro Altamira(TA)beach sediments,located in the Tamaulipas state,northern Gulf of *** main aim of this study is to infer the weathering history and provenance and to discriminate the tectonic environment of the beach *** sediments are composed of quartz with small amounts of accessory minerals such as plagioclase,calcite,orthoclase,microcline,and *** beach sediments are classified as fine-grained and very well sorted,however lP has coarse skewed and leptokurtic sediments,whereas TA has fine-skewed and very leptokurtic *** chemical index of weathering(CIW’)indicates intense weathering in the source *** quartz grain microtextures in the lP and TA are classified into mechanical,chemical,and mechanical/chemical *** features such as fractures,pits,percussion marks,abrasion fatigue,and V-shaped marks favor high-energy littoral,fluvial,subaqueous-marine,and aeolian *** chemical features indicate solution pits and crystalline overgrowth,which suggests a silica saturated marine *** mechanical/chemical features display adhering particles and elongated depressions suggest formation in a sub-aqueous nearshore marine *** and trace elements-based provenance discrimination diagrams indicate a felsic source derived from the Mesa Central(MC),Sierra Madre Oriental(SMOr)and Oaxaquia *** major and trace element concentrations imply a passive margin setting for the northern Gulf of Mexico,which is consistent with the general geology.

关键词： Beach sediments Geochemistry Mineralogy Provenance Tamaulipas Tectonic setting

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The Iberian Roma Population Variant Server(IRPVS)

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Journal of Genetics and Genomics 2024年第7期51卷 769-773页

作者： Fabiola Mavillard Javier perez-Florido Francisco M.Ortuño Amador Valladares Miren l.Álvarez-Villegas Gema Roldán Rosario Carmona Manuel Soriano Santiago Susarte Pilar Fuentes Daniel lópez-lópez Ana María Nuñez-Negrillo Alejandra Carvajal Yolanda Morgado Daniel Arteaga Rosa Ufano Pablo Mir Juan F.Gamella Joaquín Dopazo Carmen Paradas Macarena Cabrera-Serrano Instituto de Biomedicina de Sevilla(IBiS) Hospital Universitario Virgen del Rocío/CSIC/Universidad de SevillaSevillaSpain Centro Investigación Biomédica en Red Enfermedades Neurodegenerativas(CIBERNED) Instituto de Salud CarlosⅢSevillaSpain Plataforma Andaluza de Medicina Computacional Fundación Progreso y Salud(FPS)Hospital Virgen del RocíoSevillaSpain Grupo de medicina computacional de sistemas Instituto de Biomedicina de Sevilla(IBiS)Hospital Virgen del RocíoSevillaSpain Nodo de Genómica Funcional (INB-ELIXIR-es)Fundación Progreso y Salud(FPS)Hospital Virgen del RocíoSevilla 41013Spain Bioinformática en Enfermedades raras(BiER) Centro de Investigación Biomédica en Red de Enfermedades Raras(CIBERER)Instituto de salud CarlosⅢSevillaSpain Departamento de Ingeniería de Computadores Automática y RobóticaUniversidad de GranadaGranadaSpain Servicio de Urgencias de Atención Primaria Distrito SevillaSevillaSpain Centro de Servicios Sociales Negociado de Servicios EspecializadosAyuntamiento de SevillaSevillaSpain Departamento de Enfermería Facultad de Ciencias de la SaludUniversidad de GranadaGranadaSpain Departamento de Neurología Hospital Virgen de las NievesGranadaSpain Departamento de Neurología Hospital Virgen de ValmeSevillaSpain Centro de Salud Utrera Sur SevillaSpain Centro de Salud Polígono Sur SevillaSpain Unidad de Trastornos del Movimiento Servicio de Neurología y Neurofisiología ClínicaHospital Universitario Virgen del RocíoSevillaSpain Departamento de Medicina Facultad de MedicinaUniversidad de SevillaSevilleSpain Departamento de Antropología Social Universidad de GranadaSpain Unidad Enfermedades Neuromusculares Servicio de Neurología y Neurofisiología ClínicaHospital Universitario Virgen del RocíoSevillaSpain

In recent years,the number of known disease genes has exponentially grown due to the widespread adoption of cost-effective massive parallel *** identify new disease variants,especially in monogenic disorders,a frequen... 详细信息

关键词： Server filtering massive

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New therapeutic strategy with extracorporeal membrane oxygenation for refractory hepatopulmonary syndrome after liver transplant: A case report

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World Journal of Transplantation 2024年第1期14卷 210-214页

作者： Belinda Sánchez Pérez María Pérez Reyes Jose Aranda Narvaez Julio Santoyo Villalba Jose Antonio perez Daga Claudia Sanchez-Gonzalez Julio Santoyo-Santoyo Hepatobiliary and Trasplantation Unit General and Digestive Surgery DepartmentUniversity Regional HospitalMalaga 29010Spain Department of General and Digestive Surgery Regional University Hospital of MalagaMalaga 29010Spain

BACKGROUND Due to the lack of published literature about treatment of refractory hepatopulmonary syndrome(HPS)after liver transplant(lT),this case adds information and experience on this issue along with a treatment with positive *** is a complication of end-stage liver disease,with a 10%-30%incidence in cirrhotic *** can reverse the physiopathology of this process and restore normal ***,in some cases,refractory hypoxemia persists,and extracorporeal membrane oxygenation(ECMO)can be used as a rescue therapy with good *** SUMMARY A 59-year-old patient with alcohol-related liver cirrhosis and portal hypertension was included in the lT waiting list for *** had good liver function(Model for End-Stage liver Disease score 12,Child-Pugh class B7).He had pulmonary fibrosis and a mild restrictive respiratory pattern with a basal oxygen saturation of 82%.The macroaggregated albumin test result was>*** demonstrated a forced expiratory volume in one second(FEV1)of 78%,forced vital capacity(FVC)of 74%,FEV1/FVC ratio of 81%,diffusion capacity for carbon monoxide of 42%,and carbon monoxide transfer coefficient of 57%.He required domiciliary oxygen at 2 l/min(16 h/d).The patient was admitted to the intensive care unit(ICU)and extubated in the first 24 h,needing high-flow therapy and non-invasive ventilation and inhaled nitric oxide *** was needed after 72 *** to the non-response to supportive therapies,installation of ECMO was decided with progressive recovery after 9 *** was possible on the tenth day,maintaining a high-flow nasal cannula and de-escalating to conventional oxygen therapy after 48 *** was discharged from ICU on postoperative day(POD)20 with a 90%-92%oxygen *** recycling was needed twice for acute *** patient was discharged from hospital on POD 27 with no symptoms,with an 89%-90%oxygen *** Due to the favorable results observed,ECMO could bec

关键词： liver transplantation Hepatopulmonary syndrome Refractory hypoxemia Treatment Extracorporeal membrane oxygenation Case report

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Scoping review of cochlear implantation in Susac’s syndrome

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2021年第9期7卷 126-132页

作者： Philip l.perez Andrew A.McCall Barry E.Hirsch Department of Otolaryngology University of PittsburghPittsburghPA15213USA

Objective:Scoping review of published literature to establish clinical characteris tics and audiologic outcomes in patients diagnosed with Susac’s Syndrome(SS)who have undergone cochlear implantation(CI).Data sources:All published studies of CI in SS and contribution of two of our own patients who have not been reported ***:A comprehensive search of MEDlINE(via PubMed)was carried out in March 2020 using the following keywords and related entry terms:Susac's Syndrome,Cochlear ***:Our search identified a total of five case reports of CI in *** the addition of our two patients reported here,we analyzed characteristics and outcomes in seven *** age at implantation was 30 years old(range 19-46),with six women and one man *** time from onset of hearing loss to implantation was 17 months(range three months to four years).Best reported postoperative speech understanding was reported via different metrics,with six of seven patients achieving open set speech scores of 90% or better,and one subject performing at 68%.Vestibular symptoms were present preoperatively in four of seven patients(57%),with vestibular testing reported in two patients,and showing vestibulopathy in one *** complications were reported following cochlear ***:Cochlear implantation is a viable option for hearing rehabilitation in patients with SS,with levels of attainment of open set speech comparable to other populations of CI candidates.

关键词： Susac's syndrome Cochlear implantation Scoping review

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Celeboxib-mediated neuroprotection in focal cerebral ischemia: an interplay between unfolded protein response and inflammation

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Neural Regeneration Research 2022年第2期17卷 302-303页

作者： Maria Santos-Galdiano Diego perez-Rodriguez Arsenio Fernandez-lopez Area de Biologia Celular Instituto de BiomedicinaCampus de Vegazana s/nUniversidad de LeonLeonSpain Neural Therapies Sl Campus de Vegazana s/nLeónSpain Department of Clinical and Movement Neurosciences UCL Queen Square Institute of NeurologyLondonUK

Ischemic stroke results from the temporary or permanent lack of blood supply in the brain due to the occlusion of a brain blood vessel. Around 85% of patients with cerebrovascular accidents suffer from ischemic strokes.

关键词： inflammation cerebral ischemia

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MEC-based architecture for interoperable and trustworthy internet of moving things

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Digital Communications and Networks 2023年第1期9卷 270-279页

作者： Jesus Sanchez-Gomez Rafael Marin-perez Ramon Sanchez-Iborra Miguel Angel Zamora Department of Information and Communications Engineering University of MurciaMurciaSpain Odin Solutions S.l. MurciaSpain University Center of Defense San Javier Air Force BaseMurciaSpain

The expansion of the Internet of Moving Things(IoMT)leads to limitless and continuous working playgrounds exploited by highly dynamic end *** requires the adoption of multi-Radio Access Technologies(RATs)-based strategies to provide IoMT units with ubiquitous *** this end,the development of secure bootstrapping and authentication mechanisms is necessary to permit the secure operation of end *** the transmission and power limitations of these elements,current cryptographic solutions do not address these stringent *** that reason,in the study we present a Multi-Access Edge Computing(MEC)-based endto-end architecture that enables an efficient and secure authentication and key agreement between end devices and network servers over heterogeneous resource-limited networks such as the low Power Wide Area Networks(lPWANs).Our proposal is based on the Authentication,Authorization,and Accounting(AAA)architecture and the recent Internet Engineering Task Force initiatives Static Context Header Compression and low-Overhead *** results obtained from experimental tests reveal the validity of the proposal as it enables constrained IoMT devices to gain IPv6 connectivity as well as performs end-to-end secure authentication with notable reliability and controlled latency.

关键词： Internet of moving things lPWAN Authentication lO-CoAP-EAP SCHC

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Design and Implementation of a Rehabilitation Upper-limb Exoskeleton Robot Controlled by Cognitive and Physical Interfaces

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Journal of Bionic Engineering 2022年第5期19卷 1374-1391页

作者： Arturo Gonzalez‑Mendoza Ivett Quinones‑Uriostegui Sergio Salazar‑Cruz Alberto‑Isaac perez‑Sanpablo Ricardo lopez‑Gutierrez Rogelio lozano lAFMIA UMI Center for Research and AdvancedStudies of National Polytechnic InstituteAv.Instituto Politecnico Nacional No.250807360 Mexico CityMexico Motion Analysis lab National Institute of Rehabilitation Luis Guillermo Ibarra IbarraCalz.Mexico Xochimilco No.28914389 Mexico CityMexico CONACYT-CINVESTAV Av.Instituto Politecnico Nacional 250807360 Mexico CityMexico UTC-CNRS UMR Sorbonne UniversitesUTC-CNRS UMR7253 HeudiasycCompiegneFrance

This paper presents an upper limb exoskeleton that allows cognitive(through electromyography signals)and physical user interaction(through load cells sensors)for passive and active exercises that can activate neuroplasticity in the rehabilitation process of people who suffer from a neurological *** the exoskeleton to be easily accepted by patients who suffer from a neurological injury,we used the ISO9241-210:2010 as a methodology design *** the first steps of the design process,design requirements were collected from previous usability tests and ***,as a second step,a technological solution is proposed,and as a third step,the system was evaluated through performance and user *** part of the technological solution and to allow patient participation during the rehabilitation process,we have proposed a hybrid admittance control whose input is load cell or electromyography *** hybrid admittance control is intended for active therapy exercises,is easily implemented,and does not need musculoskeletal modeling to ***,electromyography signals classification models and features were evaluated to identify the best settings for the cognitive human–robot interaction.

关键词： Human Robot interaction Hybrid admittance control Surface electromyography Upper-limb exoskeletal robot

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