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Timing of Hepatitis C Virus Treatment in Liver Transplant Candidates in the Era of Direct-acting Antiviral Agents

journal of Clinical and Translational Hepatology 2017年第4期5卷 363-367页

作者： George Cholankeril Mairin joseph-Talreja brandon j.perumpail Andy Liu Eric R.Yoo Aijaz Ahmed Aparna Goel Division of Gastroenterology and Hepatology Stanford University School of MedicineStanfordCAUSA Department of Medicine Drexel University College of MedicinePhiladelphiaPAUSA Department of Medicine California Pacific Medical CenterSan FranciscoCAUSA Department of Medicine Santa Clara Valley Medical CenterSan JoseCAUSA

Chronic hepatitis C virus(HCV)infection remains the leading indication for liver transplantation(LT)in the United *** most patients with chronic HCV infection remain asymptomatic,up to one-third develop progressive liver disease resulting in *** is often the only curative treatment once significant hepatic decompensation ***,antiviral therapy for HCV infection has advanced markedly in the past 5 years with the discovery and approval of direct-acting antiviral *** new regimens are well tolerated,of short duration and highly effective,unlike the traditional treatment with pegylated-interferon and *** achieving sustained virological response becomes increasingly attainable for a majority of HCV-infected patients,concerns have been raised regarding the optimal timing of treatment for HCV infection in the setting of end-stage liver disease and during the peri-transplant *** one hand,HCV treatment may improve hepatic function and negate the need for LT in some,which is crucial given the scarcity of donor organs and mortality on the waiting list in certain *** the other hand,HCV treatment may result in lowering the priority for LT without improving quality of life,thereby delaying potentially curative LT *** review evaluates the evidence supporting the use of direct-acting antiviral agents in the period before and following LT.

关键词： Hepatitis C virus Direct-acting antiviral therapy Liver transplantation

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Sleep as a window to understand and regulate Alzheimer's disease:emerging roles of thalamic reticular nucleus

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Neural Regeneration Research 2025年第6期20卷 1711-1712页

作者： Haoqi Sun Shiqian Shen Robert j.Thomas M.brandon Westover Can Zhang Department of Neurology Beth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMAUSA Center for Translational Pain Research Department of AnesthesiaCritical Care and Pain MedicineMassachusetis General HospitalHarvard Medical SchoolBostonMAUSA Division of Pulmonary Critical Care and Sleep MedicineDepartment of MedicineBeth Israel Deaconess Medical CenterHarvard Medical SchoolBostonMAUSA Genetics and Aging Research Unit McCance Center for Brain HealthMass General Institute for Neurodegenerative DiseaseDepartment of NeurologyMassachusetts General HospitalHarvard Medical SchoolBostonMAUSA

Introduction:Alzheimer 's disease(AD) is a common neurodegenerative disorder and the primary cause of dementia. Considerable evidence supports the “amyloid hypothesis,” stating that the pathogenesis of AD is primarily caused by the deposition of amyloid-β(Aβ), which drives tau phosphorylation, neuroinflammation, and neurodegeneration in the brain. The amyloid hypothesis is strengthened by the significant and moderate benefit of lecanemab, a humanized antibody through an anti-amyloid mechanism,showing slowed clinical decline(van Dyck et al.,2023). The recent positive results of anti-amyloid trials have brought back focus on the amyloid hypothesis through biochemical, genetic, and pharmacological approaches(Zhang, 2023).

关键词： Alzheimer inflammation hypothesis

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Review of EU projects with a focus on environmental quality: Innovation, eco-innovation, and circular-economy elements

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International journal of Innovation Studies 2024年第1期8卷 1-12页

作者： jana Hojnik Mitja Ruzzier Maja Konecnik Ruzzier Boris Sucic brandon Soltwisch Matej Rus University of Primorska Faculty of ManagementIzolska Vrata 26000KoperSlovenia University of Ljubljana School of Economics and BusinessKardeljeva Ploscad 171000LjubljanaSlovenia jozef Stefan Institute Energy Efficiency CentreJamova 391000LjubljanaSlovenia Tulane University Freeman School of Business6823 St Charles AveNew OrleansLA 70118USA University of Maribor Faculty of Economics and BusinessRazlagova 142000MariborSlovenia

The primary objective of this study is to delve into transnational projects conducted between 2014 and 2020,with a strong emphasis on environmental *** focus is directed toward projects that encompass either eco-innovation or feature elements intrinsic to a circular *** achieve this goal,we introduce a pioneering analytical framework tailored to dissect transnational projects,which intricately interweaves the diverse dimensions of environmental quality and innovation,facilitating a comparative assessment across various program *** approach aligns with the overarching mission of the four flagship initiatives,in which we evaluate the combined impacts on sustainability and *** evaluation considers three fundamental factors:(1)resource allocation,(2)innovation type,and(3)infusion of eco-innovation or circular economy *** methodology unfolds through a systematic,step-by-step ***,we meticulously handpick programs,specifically Interreg,Horizon,and Life projects,within the scope of TSG3(Environmental Quality).Each of these programs corresponds to one of the following four flagship initiatives:(1)overseeing and managing marine species,(2)fostering sustainable development in coastal and maritime zones,(3)safeguarding and elevating natural habitats and terrestrial ecosystems,and(4)formulating transnational contingency strategies for maritime *** an exhaustive review,we identify projects that either directly or indirectly champion eco-innovation or other facets of the circular ***,we uncover broader manifestations of innovation,eco-innovation,and circular economy *** the Oslo Manual as a guide,we methodically categorize these innovations into the product,process,organizational,and marketing *** the timeframe under scrutiny,a relatively modest subset of projects embraced eco-innovations and practices aligned with the circular *** findings culminate in

关键词： Environment Sustainability Eco-innovation Innovation EU projects Entrepreneurship

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Error field penetration in j-TEXT tokamak based on two-fluid drift-MHD model

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Chinese Physics B 2024年第4期33卷 545-551页

作者：王文徐涛张仪 the j-TEXT team State Key Laboratory of Advanced Electromagnetic Technology International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma PhysicsSchool of Electrical and Electronic EngineeringHuazhong University of Science and TechnologyWuhan 430074China

An externally generated resonant magnetic perturbation can induce complex non-ideal MHD responses in their resonant *** have studied the plasma responses using Fitzpatrick's improved two-fluid model and program *** calculated the error field penetration threshold for *** addition,we find that the island width increases slightly as the error field amplitude increases when the error field amplitude is below the critical penetration ***,the island width suddenly jumps to a large value because the shielding effect of the plasma against the error field disappears after the *** scanning the natural mode frequency,we find that the shielding effect of the plasma decreases as the natural mode frequency ***,we obtain the m/n=2/1 penetration threshold scaling on density and temperature.

关键词： plasma responses drift-MHD model error field penetration

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Clinical epidemiology and disease burden of nonalcoholic fatty liver disease

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World journal of Gastroenterology 2017年第47期23卷 8263-8276页

作者： brandon j.perumpail Muhammad Ali Khan Eric R Yoo George Cholankeril Donghee Kim Aijaz Ahmed Department of Medicine College of MedicineDrexel University Division of Gastroenterology and Hepatology Health Science CenterUniversity of Tennessee Department of Medicine Santa Clara Valley Medical Center Division of Gastroenterology and Hepatology Stanford University School of Medicine

Nonalcoholic fatty liver disease(NAFLD) is defined as the presence of hepatic fat accumulation after the exclusion of other causes of hepatic steatosis, including other causes of liver disease, excessive alcohol consumption, and other conditions that may lead to hepatic steatosis. NAFLD encompasses a broad clinical spectrum ranging from nonalcoholic fatty liver to nonalcoholic steatohepatitis(NASH), advanced fibrosis, cirrhosis, and finally hepatocellular carcinoma(HCC). NAFLD is the most common liver disease in the world and NASH may soon become the most common indication for liver transplantation. Ongoing persistence of obesity with increasing rate of diabetes will increase the prevalence of NAFLD, and as this population ages, many will develop cirrhosis and end-stage liver disease. There has been a general increase in the prevalence of NAFLD, with Asia leading the rise, yet the United States is following closely behind with a rising prevalence from 15% in 2005 to 25% within 5 years. NAFLD is commonly associated with metabolic comorbidities, including obesity, type Ⅱ diabetes, dyslipidemia, and metabolic syndrome. Our understanding of the pathophysiology of NAFLD is constantly evolving. Based on NAFLD subtypes, it has the potential to progress into advanced fibrosis, end-stage liver disease and HCC. The increasing prevalence of NAFLD with advanced fibrosis, is concerning because patients appear toexperience higher liver-related and non-liver-related mortality than the general population. The increased morbidity and mortality, healthcare costs and declining health related quality of life associated with NAFLD makes it a formidable disease, and one that requires more in-depth analysis.

关键词： Nonalcoholic fatty liver disease Hepatic steatosis Fatty liver Prevalence Incidence Fibrosis Risk factor Epidemiology Outcomes Nonalcoholic steatohepatitis

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Aerosol jet printing of surface acoustic wave microfluidic devices

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Microsystems & Nanoengineering 2024年第1期10卷 231-242页

作者： joseph Rich Brian Cole Teng Li brandon Lu Hanyu Fu Brittany N.Smith jianping Xia Shujie Yang Ruoyu Zhong james L.Doherty Kanji Kaneko Hiroaki Suzuki Zhenhua Tian Aaron D.Franklin Tony jun Huang Department of Biomedical Engineering Duke UniversityDurhamNC 27708USA Department of Electrical and Computer Engineering Duke UniversityDurhamNC 27708USA Department of Mechanical Engineering Virginia Polytechnic Institute and State UniversityBlacksburgVA 24061USA Thomas Lord Department of Mechanical Engineering and Materials Science Duke UniversityDurhamNC 27708USA Deptartment of Precision Mechanics Faculty of Science and EngineeringChuo UniversityTokyo 112-8551Japan Department of Chemistry Duke UniversityDurhamNC 27708USA

The addition of surface acoustic wave(SAW)technologies to microfluidics has greatly advanced lab-on-a-chip applications due to their unique and powerful attributes,including high-precision manipulation,versatility,integrability,biocompatibility,contactless nature,and rapid ***,the development of SAW microfluidic devices is limited by complex and time-consuming micro/nanofabrication techniques and access to cleanroom facilities for multistep photolithography and vacuum-based *** simplify the fabrication of SAW microfluidic devices with customizable dimensions and functions,we utilized the additive manufacturing technique of aerosol jet *** successfully fabricated customized SAW microfluidic devices of varying materials,including silver nanowires,graphene,and poly(3,4-ethylenedioxythiophene)polystyrene sulfonate(PEDOT:PSS).To characterize and compare the acoustic actuation performance of these aerosol jet printed SAW microfluidic devices with their cleanroom-fabricated counterparts,the wave displacements and resonant frequencies of the different fabricated devices were directly measured through scanning laser Doppler ***,to exhibit the capability of the aerosol jet printed devices for lab-on-a-chip applications,we successfully conducted acoustic streaming and particle concentration ***,we demonstrated a novel solution-based,direct-write,single-step,cleanroom-free additive manufacturing technique to rapidly develop SAW microfluidic devices that shows viability for applications in the fields of biology,chemistry,engineering,and medicine.

关键词： printing wave fluid

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Use of direct-acting antiviral agents in hepatitis C virusinfected liver transplant candidates

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World journal of Gastroenterology 2018年第3期24卷 315-322页

作者： Chiranjeevi Gadiparthi George Cholankeril brandon j.perumpail Eric R Yoo Sanjaya K Satapathy Satheesh Nair Aijaz Ahmed Division of Gastroenterology and Hepatology University of Tennessee Health Sciences CenterMemphisTN 38104United States Division of Gastroenterology and Hepatology Stanford University School of MedicineStanfordCA 94304United States Drexel University College of Medicine PhiladelphiaPA 19129United States Department of Medicine Santa Clara Valley Medical CenterSan JoseCA 95128United States

Since the advent of direct acting antiviral(DAA) agents, chronic hepatitis C virus(HCV) treatment has evolved at a rapid pace. In contrast to prior regimen involving ribavirin and pegylated interferon, these newer agents are highly effective, well-tolerated, have shorter course of therapy and safer essentially in all HCV patients including those with advanced liver disease and following liver transplantation. Clinicians caring for HCV-infected patients on the liver transplant(LT) waitlist are often faced with a dilemma whether to treat HCV infection before or after liver transplantation. Sustained virological response(SVR) rates following HCV treatment may improve hepatic function sufficiently enough to negate the need for LT in certain patients. On the other hand, the decrease in MELD without improvement in quality of life in certain patients may lead to delay or dropout from potentially curative LT surgery list. In this context, our review focuses on the approach to and optimal timing of DAA-based treatment of HCV infection in LT candidates in the peri-transplant period.

关键词： Hepatitis C virus Direct-acting antiviral therapy Liver transplantation Purgatory Model for End-stage liver disease Sustained virological response

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Storing Freshwater Versus Storing Electricity in Power Systems with High Freshwater Electric Demand

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journal of Modern Power Systems and Clean Energy 2024年第2期12卷 323-333页

作者： Mubarak j.Al-Mubarak Antonio j.Conejo Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOHUSA Department of Electrical Engineering Kuwait UniversityP.O.Box 5969Safat 13060Kuwait Department of Integrated Systems Engineering and the Department of Electrical and Computer Engineering The Ohio State UniversityColumbusOH 43210USA IEEE

We consider a power system whose electric demand pertaining to freshwater production is high(high freshwater electric demand),as in the Middle East,and investigate the tradeoff of storing freshwater in tanks versus storing electricity in batteries at the day-ahead operation *** storing freshwater and storing electricity increase the actual electric demand at valley hours and decrease it at peak hours,which is generally beneficial in term of cost and ***,to what extent?We analyze this question considering three power systems with different generation-mix configurations,i.e.,a thermal-dominated mix,a renewable-dominated one,and a fully renewable *** generation-mix configurations are inspired by how power systems may evolve in different countries in the Middle *** production uncertainty is compactly modeled using chance *** draw conclusions on how both storage facilities(freshwater and electricity)complement each other to render an optimal operation of the power system.

关键词： Power system operation freshwater production and transportation coordination day-ahead scheduling

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Analysis of ancient mass extinction recoveries in marine environments: generating strategies for managing outcomes of the current mass extinction

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National Science Review 2024年第1期11卷 8-10页

作者： David j.Bottjer Department of Earth Sciences University of Southern California

The defining feature of a mass extinction and its associated recovery is the global amount of extinction that occurred[1]. However, there is finer-scale detail to the story, as seen in the ongoing modern mass extinction(the sixth mass extinction), which exhibits variable effects among marine ecosystems and environments, and hence geographic areas [1].

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Global weirding at mass extinction horizons

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National Science Review 2024年第1期11卷 10-12页

作者： Gregory j.Retallack Department of Earth Sciences University of Oregon

A strong motivation for studying mass extinctions is understanding how current climatic and biodiversity crises will affect creatures living on land such as ourselves. Perhaps the question is: how bad can it get? In that case, terrestrial Permian-Triassic mass extinctions are an irresistible worst-case scenario [1].

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