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Commentary on“The deterministic condition for the ground reaction force acting point on the combined knee valgus and tibial internal rotation moments in the early phase of cutting maneuvers in female athletes”

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Journal of Sport and Health Science 2024年第3期13卷 373-375页

作者： nathan D.Schilaty nathaniel A.Bates Department of Neurosurgery&Brain Repair University of South FloridaTampaFL 33620USA Department of Medical Engineering University of South FloridaTampaFL 33620USA Center for Neuromusculoskeletal Research University of South FloridaTampaFL 33620USA Department of Orthopaedics The Ohio State University Wexner Medical CenterColumbusOH 43210USA

*** For decades,substantial disagreement has persisted as to whether dynamic knee valgus is the cause of the majority of anterior cruciate ligament(ACL)injuries or rather the result of the ACL rupture.1 Consequently,great effort and expense has gone into capturing 3-dimensional kinetics and kinematics from live athletes to drive in vitro and in silico models of ACL injury in order to elucidate the actual mechanism of injury,as these factors have been demonstrated to be surrogates of intraarticular structural loading on the ACL.2,3 The elucidation of injury mechanisms for non-contact ACL injuries is of great medical value as such knowledge consequently permits quantified examination and validation of interventions and their respective effectiveness in both prevention and rehabilitation of these traumatic knee injuries.

关键词： injuries knee prevention

Use of donepezil for neurocognitive recovery after brain injury in adult and pediatric populations:a scoping review

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Neural Regeneration Research 2024年第8期19卷 1686-1695页

作者： Avery L.Miller nathan K.Evanson J.Michael Taylor University of Cincinnati College of Medicine CincinnatiOHUSA Department of Pediatrics University of CincinnatiCincinnatiOHUSA Department of Neurology and Rehabilitation Medicine University of CincinnatiCincinnatiOHUSA Division of Pediatric Rehabilitation Medicine Cincinnati Children’s Hospital Medical CenterCincinnatiOHUSA Division of Neurology Cincinnati Children’s Hospital Medical CenterCincinnatiOHUSA

There are few pharmacologic options for the treatment of cognitive deficits associated with traumatic brain injury in pediatric *** inhibitors such as donepezil have been evaluated in adult patients after traumatic brain injury,but relatively less is known about the effect in pediatric *** goal of this review is to identify knowledge gaps in the efficacy and safety of acetylcholinesterase inhibito rs as a potential a djuvant treatment fo r neurocognitive decline in pediatric patients with traumatic brain *** queried PubMed to identify literature published from database inception thro ugh June 2023 desc ribing the use of donepezil in young adult traumatic brain injury and pediatric patients with predefined *** on preselected search criteria,340 unique papers we re selected for title and abstra ct ***-two reco rds were reviewed in full after eliminating preclinical studies and pape rs outside the scope of the *** adult traumatic brain injury,we review results from 14 papers detailing 227 subjects where evidence suggests donepezil is well tole rated and shows both objective and patient-reported efficacy for reducing cognitive *** children,3 pape rs report on 5 children recovering from traumatic brain injury,showing limited *** additional 15 pediatric studies conducted in populations at risk for cognitive dysfunction provide a broader look at safety and efficacy in 210 patients in the pediatric age *** its promise for efficacy in adults with traumatic brain injury and tole rability in pediatric patients,we believe further study of donepezil for children and adolescents with traumatic brain injury is warranted.

关键词： acetylcholinesterase inhibitor adult cognition donepezil pediatrics traumatic brain injury

Precise genome-editing in human diseases:mechanisms,strategies and applications

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Signal Transduction and Targeted Therapy 2024年第3期9卷 1065-1085页

作者： Yanjiang Zheng Yifei Li Kaiyu Zhou Tiange Li nathan J.VanDusen Yimin Hua Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE Department of PediatricsWest China Second University HospitalSichuan UniversityChengduSichuan 610041China Department of Cardiovascular Surgery West China HospitalSichuan UniversityChengduSichuan 610041China Department of Pediatrics Herman B Wells Center for Pediatric ResearchIndiana University School of MedicineIndianapolisIN 46202USA

Precise genome-editing platforms are versatile tools for generating specific,site-directed DNA insertions,deletions,and *** continuous enhancement of these tools has led to a revolution in the life sciences,which promises to deliver novel therapies for genetic *** genome-editing can be traced back to the 1950s with the discovery of DNA’s doublehelix and,after 70 years of development,has evolved from crude in vitro applications to a wide range of sophisticated capabilities,including in vivo ***,precise genome-editing faces constraints such as modest efficiency,delivery challenges,and off-target *** this review,we explore precise genome-editing,with a focus on introduction of the landmark events in its history,various platforms,delivery systems,and ***,we discuss the landmark events in the history of precise ***,we describe the current state of precise genome-editing strategies and explain how these techniques offer unprecedented precision and versatility for modifying the human ***,we introduce the current delivery systems used to deploy precise genome-editing components through DNA,RNA,and ***,we summarize the current applications of precise genome-editing in labeling endogenous genes,screening genetic variants,molecular recording,generating disease models,and gene therapy,including ex vivo therapy and in vivo therapy,and discuss potential future advances.

关键词： precise generating editing

Neurogenic potential of NG2 in neurotrauma:a systematic review

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Neural Regeneration Research 2024年第12期19卷 2673-2683页

作者： Yuri R.Rigo Radharani Benvenutti Luis V.Portela nathan R.Strogulski Departamento de Bioquímica Instituto de Ciências Básicas da SaúdeUniversidade Federal do Rio Grande do Sul(UFRGS)Porto AlegreBrazil School of Pharmacy and Biomolecular Sciences RCSI University of Medicine and Health SciencesDublinIreland School of Biochemistry and Immunology Trinity Biomedical Sciences InstituteTrinity College DublinUniversity of DublinDublinIreland

Regenerative approaches towards neuronal loss following traumatic brain or spinal cord injury have long been considered a dogma in neuroscience and remain a cutting-edge area of *** is reflected in a large disparity between the number of studies investigating primary and secondary injury as therapeutic to rgets in spinal co rd and traumatic brain *** advances in biotechnology may have the potential to reshape the current state-of-the-art and bring focus to primary injury neurotrauma *** studies using neural-glial factor/antigen 2(NG2)cells indicate that they may differentiate into neurons even in the developed *** these cells show great potential to play a regenerative role,studies have been conducted to test various manipulations in neurotrauma models aimed at eliciting a neurogenic response from *** the present study,we systematically reviewed the experimental protocols and findings described in the scientific literature,which were peer-reviewed original research articles(1)describing preclinical experimental studies,(2)investigating NG2 cells,(3)associated with neurogenesis and neurotrauma,and(4)in vitro and/or in vivo,available in PubMed/MEDLINE,Web of Science or SCOPUS,from 1998 to ***,we have reviewed a total of 1504 papers,and summarized findings that ultimately suggest that NG2 cells possess an inducible neurogenic potential in animal models and in *** also discriminate findings of NG2 neurogenesis promoted by different pharmacological and genetic approaches over functional and biochemical outcomes of traumatic brain injury and spinal co rd injury models,and provide mounting evidence for the potential benefits of manipulated NG2 cell ex vivo transplantation in primary injury *** findings indicate the feasibility of NG2 cell neurogenesis strategies and add new players in the development of therapeutic alternatives for neurotrauma.

关键词： neural-glial antigen 2 neural-glial factor 2 neuron differentiation NG2 cell regeneration spinal cord injury(SCI) traumatic brain injury(TBI)

Are school uniforms associated with gender inequalities in physical activity? A pooled analysis of population-level data from 135 countries/regions

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Journal of Sport and Health Science 2024年第4期13卷 590-598页

作者： Mairead Ryan Luiza I.C.Ricardo Nicole nathan Riikka Hofmann Esther van Sluijs Medical Research Council Epidemiology Unit University of CambridgeCambridge CB20QQUK Faculty of Education University of CambridgeCambridge CB28PQUK Hunter New England Population Health WallsendNSW 2287Australia School of Medicine and Public Health College of HealthMedicine and WellbeingUniversity of NewcastleCallaghanNSW 2308Australia Hunter Medical Research Institute New Lambton HeightsNSW 2305Australia National Centre of Implementation Science University of NewcastleCallaghanNSW 2308Australia

Purpose:It is aimed to assess whether school uniforms are associated with population-level gender inequalities in physical activity,and whether associations differ by school level,country/region income,and assessment ***:An ecological study design was *** collected data about global uniform practices using an online *** searched for country/region-level estimates of school-aged youth meeting physical activity guidelines from international surveillance *** selection was conducted in duplicate using a systematic process,and a random sample of all data was checked to ensure extraction and pooling processes were *** calculated absolute and relative gender inequalities in physical activity for each *** regression examined associations between country/region-level uniform practices(binary yes/no exposure variable) and country/region-level gender inequalities in physical activity guideline compliance(absolute and relative inequalities).We investigated moderation by school level,stratified analyses by income group,and repeated primary analyses using device-measured ***:Pooling data from 135 countries/regions(n=1,089,852),we found no association between population-level uniform practices and gender inequalities in physical activity across all ages(absolute:β=-0.2;95% confidence interval(95%CI):-1.7 to 1.3,p=0.74;relative:β=0.1;95%CI:-0.1 to 0.2,p=0.51).Subgroup analysis suggested a positive association in primary school settings(absolute:β=4.3;95%CI:-0.0 to 8.6,p=0.05).Among high-income countries,absolute inequalities were significantly greater in countries/regions with uniform practices(N=37) compared to those without(N=48)(9.1(SD=3.6) vs.7.8 percentage points(SD=4.3)).Repeating analyses using device-measured data(n=32,130;N=24) did not alter our primary *** initial descriptive statistics,we found that in countries/regions where a maj ority of schools(>50%) reportedly use uniforms,there was lower compli

关键词： School policy Clothing Child Adolescent Accelerometer

Mesenchymal Stromal Cells and Their Uses in Bio-Regenerative Therapies for Bone and Cartilage: A Review

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Open Journal of Regenerative Medicine 2024年第1期13卷 1-19页

作者： nathan Smernoff Texas College of Osteopathic Medicine University of North Texas Health Science Center Fort Wort Texas USA

Mesenchymal stromal cells (MSCs) are a top candidate for new clinical treatments in the repair of bone and cartilage. In several clinical trials, they have shown reliable, effective, and safe management of inflammation, pain, and the regenerative capabilities of resident tissues. MSCs are likely derived from pericytes. They modulate the environment they are placed in by secreting immunomodulatory and signaling molecules to reduce inflammation and direct resident cells to create new tissues. They are easily isolated from several different adult tissues, and inexpensive to grow in a lab. However, a mistake made in the initial classification of MSCs as stem cells has created deeply engrained misconceptions that are still evident today. MSCs are not stem cells, despite a large fraction of research and therapies using the name “mesenchymal stem cells”. This mistake creates false narratives attributing the observed positive outcomes of MSC treatments to stem cell characteristics, which has led to distrust in MSC research. Despite inconsistencies in their classification, MSCs demonstrate consistent positive effects in numerous animal studies and human clinical trials for non-unions and osteoarthritis. With an aging population, regenerative techniques are very promising for novel therapies. To produce trusted and safe new treatments using MSCs, it is essential for the International Society for Cellular Therapies to re-establish common ground in the identity, mechanism of action, and isolation techniques of these cells.

关键词： Mesenchymal Stromal Cells Osteoarthritis Non-Unions

Chronic Vaginal Discharge Syndrome Caused by Obstructed Hemivagina and Ipsilateral Renal Agenesis (OHVIRA) Syndrome: A Case Report

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Case Reports in Clinical Medicine 2024年第7期13卷 227-233页

作者： Arja Alemu nathan Ross Department of Obstetrics and Gynecology AGC Tenwek Hospital Bomet Kenya Department of Obstetrics and Gynecology Soddo Christian Hospital Soddo Ethiopia

Background: Vaginal discharge syndrome is a common condition across the world with the main causes being infectious. Rare causes include obstructed hemivagina with ipsilateral renal agenesis (OHVIRA syndrome). Case Presentation: This case involves an 18-year-old woman with a 9-year history of vaginal discharge treated unsuccessfully by multiple physicians and different health facilities. After she presented to our hospital gynecology clinic with the same complaint she investigated with blood, urine, discharge wet-mount, pelvic ultrasound, and abdominopelvic computed tomography at different times. Preoperatively she was suspected to have OHVIRA syndrome which was successfully surgically treated with a full return of function. Conclusion: This case emphasizes the need to consider non-infectious causes commonly congenital mullerian anomaly in young women presented with long-time vaginal discharge symptoms soon after menarche and which are nonresponding to different multiple medical treatments. In peripheral health institutions like ours, it is best to consider computed tomography if available but better not to forget at least abdominopelvic ultrasound to look for congenital Mullerian anomalies.

关键词： OHVIRA Syndrome Vaginal Discharge Syndrome Early Marriage

Comprehensive Molten Salt Storage Shell and Support Design and Analysis Ⅲ: A Complete 700 ℃ Thermal-Structural Interaction Design Using Theoretical Analysis of an 80 Foot Diameter and 46 Foot High MS Storage Shell Including Structural, Conductive and Convective Thermal Stress Analysis

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Journal of Energy and Power Engineering 2024年第2期18卷 35-45页

作者： nathan Loyd Samaan Ladkany Howard Hughes College of Engineering University This of NevadaLas VegasNV 89154USA

The paper discusses the structural design of a futuristic 700℃ MS(Molten salt)Storage Shell,which considers many elements in providing an adequate and comprehensive *** designing the structural carbon steel for the tank,temperature is an important consideration because steel has a yield strength at 700℃,that is 33%of its nominal yield,while the Young’s Modulus at 700℃ is 50%of its nominal Young’s *** this temperature,thermal stresses can yield or tear the structural steel unless free expansion of the structure is *** is accomplished with sand layers below each layer of steel and by including a small gap behind the side carbon steel layer.A roof shell design for the tank is also presented in this paper,comparing various roof shell types and their *** designs include thermal insulation and an inner stainless steel corrosion layer to protect the structural and thermal insulation elements of the tank from the MS.

关键词： MS storage tank design solar energy shell theory steel structural design

Risk prediction of advanced colorectal neoplasia varies by race and neighbourhood socioeconomic status

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Family Medicine and Community Health 2024年第S2期12卷 26-33页

作者： Xiangqing Sun Zhengyi Chen Gregory S Cooper nathan A Berger Claudia Coulton Li Li Department of Family Medicine University of VirginiaCharlottesvilleVirginiaUSA Department of Population and Quantitative Health Sciences Case Western Reserve UniversityClevelandOhioUSA University Hospitals Cleveland Medical Center ClevelandOhioUSA Case Comprehensive Cancer Center ClevelandOhioUSA Jack Joseph and Morton Mandel School of Applied Social SciencesCase Western Reserve UniversityClevelandOhioUSA

Objective Neighbourhood deprivation increases the risk of colorectal neoplasia and contributes to racial disparities observed in this *** race-specific advanced colorectal neoplasia(ACN)prediction models that include neighbourhood socioeconomic status has the potential to improve the accuracy of *** The study includes 1457 European Americans(EAs)and 936 African Americans(AAs)aged 50–80 years undergoing screening ***-specific ACN risk prediction models were developed for EAs and AAs,*** Deprivation Index(ADI),derived from 17 variables of neighbourhood socioeconomic status,was evaluated by adding it to the ACN risk prediction *** accuracy was evaluated by concordance statistic(C-statistic)for discrimination and Hosmer-Lemeshow goodness-of-fit test for *** With fewer predictors,the EA-specific and AA-specific prediction models had better prediction accuracy in the corresponding race/ethnic subpopulation than the overall *** with the overall model which had poor calibration(P_(Calibration)=0.053 in the whole population and P_(Calibration)=0.011 in AAs),the EA model had C-statistic of 0.655(95%CI 0.594 to 0.717)and P_(Calibration)=0.663;and the AA model had C-statistic of 0.637((95%CI 0.572 to 0.702)and P_(Calibration)=*** was a significant predictor of ACN in EAs(OR=1.24((95%CI 1.03 to 1.50),P=0.029),but not in AAs(OR=1.07((95%CI 0.89 to 1.28),P=0.487).Adding ADI to the EA-specific ACN prediction model substantially improved ACN calibration accuracy of the prediction across area deprivation groups(P_(Calibration)=0.924 with ADI vs P_(Calibration)=0.140 without ADI)in *** Neighbourhood socioeconomic status is an important factor to consider in ACN risk prediction ***,non-race-specific prediction models have poor ***-specific prediction models incorporating neighbourhood socioeconomic factors are needed to improve ACN predicti

关键词： colorectal neoplasia prediction