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Creation of an optic nerve sheath diameter ultrasound model for Neuro ICU education

Military Medical Research 2021年第1期8卷 116-120页

作者： Heidi M.Felix Kristin A.Rosenbush Amy M.lannen Robert A.Pooley jason l.siegel Benjamin l.Brown Melissa l.Mc Mullan Christina I.Collins William D.Freeman J.Wayne and Delores Barr Weaver Simulation Center Mayo Clinic4500 San Pablo RoadJacksonvilleFL 32224USA Division of Medical Physics Mayo ClinicJacksonvilleFL 32224USA Department of Critical Care Medicine Mayo ClinicJacksonvilleFL 32224USA Department of Neurology Mayo ClinicJacksonvilleFL 32224USA Department of Neurologic Surgery Mayo ClinicJacksonvilleFL 32224USA Department of Radiology Mayo ClinicJacksonvilleFL 32224USA Department of Nursing Mayo ClinicJacksonvilleFL 32224USA

Background: Using ultrasound to measure optic nerve sheath diameter(ONSD) is an emerging bedside technique to noninvasively assess intracranial pressure(ICP) in patients with brain injury. This technique is unique among bedside ultrasonography and is often performed by providers who have no formal ultrasound training. We sought to create a low-cost, 3 D, reusable ONSD model to train neurology, neurosurgery, and critical care providers in measuring ***: We identified 253 articles, of which 15 were associated with models and 2 with simulation. One gelatin model was reported, upon which we based our initial design. We could not validate the visual findings of this model;however, after constructing multiple beta models, the design most representative of human eye anatomy was a globe made of ballistics gel and either a 3 mm, 5 mm, or 7 mm×50 mm 3 D-printed optic nerve inserted into a platform composed of ballistics gel, all of which sat inside a 3 D-printed skull. This model was used to teach ONSD measurements with ultrasound at a continuing medical education event prior to training on a live human ***: A simple 3 D ballistic ONSD model allows learners to practice proper hand placement and pressure, basic landmarks, and ONSD measurement prior to operating on a human eye. This model is replicable and sustainable given that the globe and platform are composed of ballistics gel.

关键词： Intracranial pressure Simulation Task trainer Ultrasound

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Degradation and resynthesis of chlorophyll during increased oxidative stress and prolonged darkness differ between annual and perennial flax(linum l.)

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Oil Crop Science 2024年第2期9卷 121-130页

作者： Kenyon J. Nisbett Abida Alokozai Su Hyun Elizabeth Ko G. Adam Mott jason C.l. Browna Department of Biological Sciences University of Toronto ScarboroughTorontoONCanada Department of Cell&Systems Biology University of TorontoTorontoONCanada Centre for the Analysis of Genome Evolution&Function University of TorontoTorontoONCanada

Among plants,there is considerable variation in lifespan:annuals live less than one year,whereas perennials live for several years,with the longest-living perennial having survived 43,600 *** proposed by the Disposable Soma Theory,this lifespan variation among plants likely reflects differential investment of limited energy and nutrient resources,with perennials investing more energy and nutrients into biomolecular maintenance compared to annuals in order to ensure persistence over multiple *** differential investment may be particularly important during periods of exogenous stress,which are known to accelerate biomolecular *** present study evaluated this hypothesis using annual and perennial flax(linum l.)subjected to two exogenous stressors—increased oxidative stress(i.e.,foliar H2O2spraying)and complete prolonged *** chlorophyll has been shown to exhibit degradation in response to changes in environmental conditions,we utilized changes in chlorophyll levels during and after periods of exogenous stress to evaluate our *** predicted that i)perennials would exhibit a slower rate of chlorophyll degradation during exposure to exogenous stressors compared to annuals,and ii)perennials would exhibit a faster rate of chlorophyll resynthesis following such exposure compared to *** levels before,during,and after exposure to both exogenous stressors were measured in two separate trails,once using image colour analysis and once using *** chlorophyll degradation rates in response to oxidative stress did not differ between annuals and perennials,contrary to our predictions,chlorophyll resynthesis rates following such exposure were significantly higher in perennials,as *** plants were subjected to complete prolonged darkness,chlorophyll degradation rates were significantly lower in perennials than annuals,as predicted;however,when plants were subsequently reintroduced to natural photoperiod,ch

关键词： Ageing life history Maximum lifespan Oxidative stress Somatic maintenance

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Canonical and noncanonical Wnt signaling: Multilayered mediators, signaling mechanisms and major signaling crosstalk

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Genes & Diseases 2024年第1期11卷 103-134页

作者： Kevin Qin Michael Yu Jiaming Fan Hongwei Wang Piao Zhao Guozhi Zhaoo Wei Zeng Connie Chen Yonghui Wang Annie Wang Zander Schwartz Jeffrey Hong lily Song William Wagstaff Rex C.Haydon Hue H.luu Sherwin H.Ho jason Strelzow Russell R.Reid Tong-Chuan He lewis l.Shi Chicago Medical School Rosalind Franklin University of Medicine and ScienceNorth ChicagoIL 60064USA Molecular Oncology laboratory Department of Orthopaedic Surgery and Rehabilitation MedicineThe University of Chicago Medical CenterChicagoIL 60637USA Ministry of Education Key laboratory of Diagnostic Medicine and Department of Clinical BiochemistryThe School of Laboratory MedicineChongqing Medical UniversityChongqing 400016China Departments of Orthopaedic Surgery and Urology The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Interventional Neurology The First Dongguan Affiliated HospitalGuangdong Medical UniversityDongguanGuangdong 523475China Department of Clinical laboratory Medicine Shanghai Jiaotong University School of MedicineShanghai 200000China School of Biomedical Engineering Vanderbilt UniversityNashvilleTN 37235USA laboratory of Craniofacial Biology and Development Department of Surgery Section of Plastic SurgeryThe University of Chicago Medical CenterChicagoIL 60637USA

Wnt signaling plays a major role in regulating cell proliferation and *** Wnt ligands are a family of 19 secreted glycoproteins that mediate their signaling effects via binding to Frizzled receptors and lRP5/6 coreceptors and transducing the signal either throughβ-catenin in the canonical pathway or through a series of other proteins in the nonca-nonical *** of the individual components of both canonical and noncanonical Wnt signaling have additional functions throughout the body,establishing the complex interplay between Wnt signaling and other signaling *** crosstalk between Wnt signaling and other pathways gives Wnt signaling a vital role in many cellular and organ ***-regulation of this system has been implicated in many diseases affecting a wide array of organ systems,including cancer and embryological defects,and can even cause embryonic *** complexity of this system and its interacting proteins have made Wnt signaling a target for many therapeutic ***,both stimulatory and inhibitory treatments come with potential risks that need to be *** review synthesized much of the current knowl-edge on the Wnt signaling pathway,beginning with the history of Wnt *** thoroughly described the different variants of Wnt signaling,including canonical,noncanonical Wnt/PCP,and the noncanonical Wnt/Ca2+*** description involved each of its components and their involvement in other cellular ***,this review explained the various other pathways and processes that crosstalk with Wnt signaling.

关键词： β-catenin Canonical Wnt Noncanonical Wnt Signal transduction Signaling crosstalk

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Prehospital transdermal glyceryl trinitrate for ultra- acute ischaemic stroke: data from the RIGHT- 2 randomised sham- controlled ambulance trial

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Stroke & Vascular Neurology 2024年第1期9卷 38-49,I0035-I0046页

作者： jason Philip Appleton lisa J Woodhouse Craig S Anderson Sandeep Ankolekar lesley Cala Mark Dixon Timothy J England Kailash Krishnan Grant Mair Keith W Muir John Potter Christopher I Price Marc Randall Thompson G Robinson Christine Roffe Else C Sandset Jeffrey l Saver Angela Shone Aloysius Niroshan Siriwardena Joanna M Wardlaw Nikola Sprigg Philip M Bath Stroke University Hospitals Birmingham NHS Foundation TrustBirminghamUK Institute of Applied HealthResearch University of Birmingham College of Medical and Dental SciencesBirminghamUK Stroke Trials Unit Mental Health and Clinical NeurosciencesUniversity of NottinghamNottinghamUK Faculty of Medicine The George Institute for Global HealthSydneyNew South WalesAustralia The George Institute China at Peking University Health Science Center BeijingChina Neurology Royal Prince Alfred HospitalSydney Health PartnersSydneyNew South WalesAustralia Department of Neurology King's College Hospital NHS Foundation TrustLondonUK Faculty of Health and Medical Sciences University of Western AustraliaCrawleyWestern AustraliaAustralia East Midlands Ambulance Service NHS Trust NottinghamUK Stroke Queen's Medical CentreNottingham University Hospitals NHS TrustNottinghamUK Centre for Clinical Brain Sciences Dementia Research InstituteUniveristy of EdinburghEdinburghUK Institute of Neurology and Psychology University of GlasgowGlasgowUK Bob Champion Research and Education Building University of East AngliaNorwichUK Institute of Neuroscience Newcastle UniversityNewcastle upon TyneUK Department of Neurology Leeds Teaching Hospitals NHS TrustLeedsUK Department of Cardiovascular Sciences and NIHR leicester Biomedical Research Centre University of LeicesterLeicesterUK Stroke Research in Stoke Institute for Science and Technology in MedicineKeele UniversityStoke-on TrentUK Department of Neurology Oslo University HospitalOsloNorway Research and Development Norwegian Air Ambulance FoundationOsloNorway Department of Neurology and Comprehensive Stroke Center David Geffen School of MedicineUCLALos AngelesCaliforniaUSA Research and Graduate Services University of NottinghamNottinghamUK Community and Health Research Unit University of LincolnLincolnUK

Background The effect of transdermal glyceryl trinitrate(GTN,a nitrovasodilator)on clinical outcome when administered before hospital admission in suspected stroke patients is ***,we assess the safety and efficacy of GTN in the prespecified subgroup of patients who had an ischaemic stroke within the Rapid Intervention with Glyceryl trinitrate in Hypertensive stroke Trial-2(RIGHT-2).Methods RIGHT-2 was an ambulance-based multicentre sham-controlled blinded-endpoint study with patients randomised within 4hours of *** primary outcome was a shift in scores on the modified Rankin scale(mRS)at day *** outcomes included death;a global analysis(Wei-lachin test)containing Barthel Index,EuroQol-5D,mRS,telephone interview for cognitive status-modified and Zung depression scale;and neuroimaging-determined‘brain frailty’*** were reported as n(%),mean(SD),median[IQR],adjusted common OR(acOR),mean difference or Mann-Whitney difference(MWD)with 95%*** 597 of 1149(52%)patients had a final diagnosis of ischaemic stroke;age 75(12)years,premorbid mRS>2107(18%),Glasgow Coma Scale 14(2)and time from onset to randomisation 67[45,108]***‘brain frailty’was common:median score 2[2,3](range 0–3).At day 90,GTN did not influence the primary outcome(acOR for increased disability 1.15,95%CI 0.85 to 1.54),death or global analysis(MWD 0.00,95%CI-0.10 to 0.09).In subgroup analyses,there were non-significant interactions suggesting GTN may be associated with more death and dependency in participants randomised within 1hour of symptom onset and in those with more severe *** In patients who had an ischaemic stroke,ultra-acute administration of transdermal GTN in the ambulance did not improve clinical outcomes in a population with more clinical and radiological frailty than seen in previous in-hospital *** IS AlREADY KNOWN ON THIS TOPIC⇒Transdermal glyceryl trinitrate(GTN)was associat-ed with less death and dependency in those w

关键词： Glasgow nitrate random

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Dynamics of self-hybridized exciton–polaritons in 2D halide perovskites

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light(Science & Applications) 2024年第1期13卷 13-22页

作者： Surendra B.Anantharaman jason lynch Christopher E.Stevens Christopher Munley Chentao li Jin Hou Hao Zhang Andrew Torma Thomas Darlington Francis Coen Kevin li Arka Majumdar PJames Schuck Aditya Mohite Hayk Harutyunyan Joshua R.Hendrickson Deep Jariwala Department of Electrical and Systems Engineering University of PennsylvaniaPhiladelphiaPA19104USA KBR Inc. BeavercreekOH45431USA Air Force Research laboratory Sensors DirectorateWright-Patterson Air Force BaseOH45433USA Department of Physics University of WashingtonSeattleWA98195USA Department of Physics Emory UniversityAtlantaGA30322USA Department of Chemical and Biomolecular Engineering Rice UniversityHoustonTX77005USA Department of Materials Science and Nanoengineering Rice UniversityHoustonTX77005USA Applied Physics Program Smalley‐Curl InstituteRice UniversityHoustonTX77005USA Department of Mechanical Engineering Columbia UniversityNew YorkNY10027USA Department of Electrical and Computer Engineering University of WashingtonSeattleWA98195USA

Excitons,bound electron–hole pairs,in two-dimensional hybrid organic inorganic perovskites(2D HOIPs)are capable of forming hybrid light-matter states known as exciton-polaritons(E–Ps)when the excitonic medium is confined in an optical *** the case of 2D HOIPs,they can self-hybridize into E–Ps at specific thicknesses of the HOIP crystals that form a resonant optical cavity with the ***,the fundamental properties of these self-hybridized E–Ps in 2D HOIPs,including their role in ultrafast energy and/or charge transfer at interfaces,remain ***,we demonstrate that>0.5µm thick 2D HOIP crystals on Au substrates are capable of supporting multiple-orders of self-hybridized E–P *** E–Ps have high Q factors(>100)and modulate the optical dispersion for the crystal to enhance sub-gap absorption and *** varying excitation energy and ultrafast measurements,we also confirm energy transfer from higher energy E–Ps to lower energy E–***,we also demonstrate that E–Ps are capable of charge transport and transfer at *** findings provide new insights into charge and energy transfer in E–Ps opening new opportunities towards their manipulation for polaritonic devices.

关键词： charge polar excitation

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Elite,transformable haploid inducers in maize

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The Crop Journal 2024年第1期12卷 314-319页

作者： Brent Delzer Dawei liang David Szwerdszarf Isadora Rodriguez Gonzalo Mardones Sivamani Elumalai Francine Johnson Samson Nalapalli Rachel Egger Erin Burch Kerry Meier Juan Wei Xiujuan Zhang Huaping Gui Huaibing Jin Huan Guo Kun Yu Yubo liu Becky Breitinger Ana Poets jason Nichols Wan Shi David Skibbe Qiudeng Que Timothy Kelliher Seeds Development Syngenta SeedsJanesvilleWI 53546USA Seeds Research Syngenta Biotechnology China Co.Ltd.Beijing 102206China Centro de Investigación de Cultivos Arica Syngenta R&DArica 1000000Chile Syngenta S.A. Proyecto la SoledadGraneros 2880000Chile Seeds Research Syngenta Crop Protection LLCRTPNC 27709USA Seeds Development Syngenta SeedsSlaterIA 50244USA

The introduction of alleles into commercial crop breeding pipelines is both time consuming and *** technologies that are disrupting traditional breeding processes are doubled haploid(DH)breeding and genome editing(GE).Recently,these techniques were combined into a GE trait delivery system called HI-Edit(Haploid Inducer-Edit).In HI-Edit,the pollen of a haploid inducer line is reprogrammed to deliver GE traits to any variety,obviating recurrent *** HI-Edit to operate at scale,an efficient transformable HI line is needed,but most maize varieties are recalcitrant to transformation,and haploid inducers are especially difficult to transform given their aberrant reproductive *** marker assisted selection and a three-tiered testing scheme,we report the development of new Iodent and Stiff Stalk maize germplasm that are transformable,have high haploid induction rates,and exhibit a robust,genetically-dominant anthocyanin native trait that may be used for rapid haploid *** show that transformation of these elite‘‘HI-Edit”lines is enhanced using the BABYBOOM and WUSCHEl morphogenetic ***,we evaluate the HI-Edit performance of one of the lines against both Stiff Stalk and non-Stiff Stalk *** strategy and results of this study should facilitate the development of commercially scalable HI-Edit systems in diverse crops.

关键词： Zea mays l Doubled haploids Transformation Genome editing QTl

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Internal short circuit detection method for battery pack based on circuit topology

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Science China(Technological Sciences) 2018年第10期61卷 1502-1511页

作者： ZHANG MingXuan DU JiuYu lIU liShuo siegel jason lU lanGuang HE XiangMing OUYANG MingGao State Key laboratory of Automotive Safety and Energy Tsinghua University Beijing 100084 China College of Engineering University of Michigan Ann Arbor MI 48109 USA Institute of Nuclear and New Energy Technology Tsinghua University Beijing 100084 China

Internal short circuit(ISCr) is one of the major obstacles to the improvement of the battery safety. The ISCr may lead to the battery thermal runaway and is hard to be detected in the early stage. In this work, a new ISCr detection method based on the symmetrical loop circuit topology(SlCT) is introduced. The SlCT ensures that every battery has the same priority in the circuit and every battery will contribute the same amount of short-circuit current to the ISCr once the ISCr happens. The ISCr battery could be identified by the combination of the ratio of the short-circuit currents and the sign of the short-circuit currents. The recursive least square method is adopted for the real-time application and the optimized ammeters allocation is derived from the mathematic deduction. The battery pack based on the individual DP(dual polarization) battery model is established to verify the ISCr detection method. The 1–1000 Ω s ISCr(the early stage ISCr) can be effectively detected within 1–125 s. The SlCT provides the possibility of new battery pack designs and new battery management methods. The proposed ISCr detection method shows excellent effectiveness and efficiency on the identification of the ISCr battery in the early stage.

关键词：电池模型内部短路拓扑学电路包装电流计数学推理电池管理

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Surgery for metastatic pancreatic neuroendocrine tumors: a narrative review

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Hepatobiliary Surgery and Nutrition 2023年第1期12卷 69-83页

作者： Jelani K.Williams jason l.Schwarz Xavier M.Keutgen Division of General Surgery and Surgical Oncology Department of SurgeryUniversity of Chicago MedicineChicagoILUSA

Background and Objective:Pancreatic neuroendocrine tumors(PanNETs)are derived from the islet cells of the pancreas and have been increasing in *** of these tumors are nonfunctional although some can secrete hormones and lead to hormone-specific clinical *** is the mainstay of treatment for localized tumors,however,surgical resection is controversial in metastatic *** narrative review seeks to summarize the current literature surrounding surgery,specifically in the controversial area of metastatic PanNETs,review current treatment paradigms,and understand the benefits of surgery in this group of ***:Authors searched PubMed using the terms“surgery pancreatic neuroendocrine tumor”,“metastatic neuroendocrine tumor”,and“liver debulking neuroendocrine tumor”from January 1990 to June *** English language publications were *** Content and Findings:There is no consensus among the leading specialty organizations regarding surgery for metastatic *** considering surgery for metastatic PanNETs,tumor grade and morphology,location of the primary tumor,extra-hepatic or extra-abdominal disease,as well as liver tumor burden and metastatic distribution should be *** the liver is the most common site of metastasis and liver failure is the most common cause of death in patients with hepatic metastases,attention is centered here on debulking and other ablative *** transplantation is rarely used for hepatic metastases but could be beneficial in a small subset of *** studies have demonstrated improvement in survival and symptoms after surgery for metastatic disease,but the lack of prospective randomized control trials significantly limits analysis of surgical benefits in patients with metastatic ***:Surgery is the standard of care for localized PanNETs,while it remains controversial in metastatic *** studies have shown a survival and symptomatic be

关键词： Pancreatic neuroendocrine tumors(PanNETs) liver tumor burden hepatic metastasis liver debulking DOTATATE

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A dual-gelling poly(N-isopropylacrylamide)-based ink and thermoreversible poloxamer support bath for high-resolution bioprinting

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Bioactive Materials 2022年第8期7卷 302-312页

作者： Adam M.Navara Yu Seon Kim Yilan Xu Christopher l.Crafton Mani Diba jason l.Guo Antonios G.Mikos Department of Bioengineering Rice University6500 Main StreetHoustonTX77030USA

Extrusion bioprinting is a popular method for fabricating tissue engineering scaffolds because of its potential to rapidly produce complex,bioactive or cell-laden ***,due to the relatively high viscosity required to maintain shape fidelity during printing,many extrusion-based inks lack the ability to achieve precise structures at scales lower than hundreds of *** this work,we present a novel poly(N-isopropylacrylamide)(PNIPAAm)-based ink and poloxamer support bath system that produces precise,multi-layered structures on the tens of micrometers *** support bath maintains the structure of the ink in a hydrated,heated environment ideal for cell culture,while the ink undergoes rapid thermogelation followed by a spontaneous covalent crosslinking *** the combination of the PNIPAAm-based ink and poloxamer bath,this system was able to produce hydrogel scaffolds with uniform fibers possessing diameters tunable from 80 to 200μm.A framework of relationships between several important printing factors involved in maintaining support and thermogelation was also *** a whole,this work demonstrates the ability to produce precise,acellular and cell-laden PNIPAAm-based scaffolds at high-resolution and contributes to the growing body of research surrounding the printability of extrusion-based bioinks with support baths.

关键词： Bioprinting Thermogelling macromer Tissue engineering Printability

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Brain-derived neurotrophic factor and inflammation in depression:Pathogenic partners in crime?

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World Journal of Psychiatry 2022年第1期12卷 77-97页

作者： Grace A Porter jason C O’Connor Department of Pharmacology UT Health San AntonioSan AntonioTX 78229United States Department of Pharmacology University of Texas Health San AntonioSan AntonioTX 78229United States Audie l.Murphy VA Hospital South Texas Veterans Health SystemSan AntonioTX 78229United States

Major depressive disorder is a debilitating disorder affecting millions of people each ***-derived neurotrophic factor(BDNF)and inflammation are two prominent biologic risk factors in the pathogenesis of depression that have received considerable *** clinical and animal studies have highlighted associations between low levels of BDNF or high levels of inflammatory markers and the development of behavioral symptoms of ***,less is known about potential interaction between BDNF and inflammation,particularly within the central nervous *** evidence suggests that there is bidirectional regulation between these factors with important implications for the development of depressive symptoms and antidepressant *** levels of inflammatory mediators have been shown to reduce expression of BDNF,and BDNF may play an important negative regulatory role on inflammation within the *** this interaction more fully within the context of neuropsychiatric disease is important for both developing a fuller understanding of biological pathogenesis of depression and for identifying novel therapeutic *** we review these two prominent risk factors for depression with a particular focus on pathogenic implications of their interaction.

关键词： Brain-derived neurotrophic factor Microglia Neuroinflammation Growth factors Depression

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