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86篇 您的检索式:作者名="Daniel Ryan"
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1In vivo radiometric analysis of glucose uptake and distribution in mouse bone显示文摘Bone formation and remodeling occurs throughout life and requires the sustained activity of osteoblasts and osteoclasts,particularly during periods of rapid bone growth.Despite increasing evidence linking bone cell activity to global energy homeostasis,little is known about the relative energy requirements or substrate utilization of bone cells.In these studies,we measured the uptake and distribution of glucose in the skeleton in vivo using positron-emitting^(18)F-fluorodeoxyglucose([^(18)F]-FDG) and non-invasive,high-resolution positron emission tomography/computed tomography(PET/CT) imaging and ex vivo autoradiography.Assessment of [^(18)F]-FDG uptake demonstrated that relative to other tissues bone accumulated a significant fraction of the total dose of the glucose analog.Skeletal accumulation was greatest in young mice undergoing the rapid bone formation that characterizes early development.PET/CT imaging revealed that [^(18)F]-FDG uptake was greatest in the epiphyseal and metaphyseal regions of long bones,which accords with the increased osteoblast numbers and activity at this skeletal site.Insulin administration significantly increased skeletal accumulation of [^(18)F]-FDG,while uptake was reduced in mice lacking the insulin receptor specifically in osteoblasts or fed a high-fat diet.Our results indicated that the skeleton is a site of significant glucose uptake and that its consumption by bone cells is subject to regulation by insulin and disturbances in whole-body metabolism.Meredith L Zoch Diane S Abou Thomas L Clemens Daniel LJ Thorek Ryan C Riddle 2016Bone Research2016,4,1:9
2Motor competence and health-related fitness in children:A cross-cultural comparison between Portugal and the United States显示文摘Background: Motor competence and health-related fitness are important components for the development and maintenance of a healthy lifestyle in children. This study examined cross-cultural performances on motor competence and health-related fitness between Portuguese and U.S.children.Methods: Portuguese(n = 508; 10.14 § 2.13 years, mean § SD) and U.S.(n = 710; 9.48 § 1.62 years) children performed tests of cardiorespiratory fitness(Progressive Aerobic Cardiovascular Endurance Run), upper body strength(handgrip), locomotor skill performance(standing long jump), and object projection skill performance(throwing and kicking). Portuguese and U.S. children were divided into 2 age groups(6à9 and 10à13 years) for data analysis purposes. A twoàfactor oneàway analysis of covariance(ANOVA) was conducted with the Progressive Aerobic Cardiovascular Endurance Run, handgrip, standing long jump scores, kicking, and throwing speed(km/h) as dependent variables.Results: Results indicated that Portuguese children, irrespective of sex, presented better performances in locomotor and cardiorespiratory performance(standing long jump and Progressive Aerobic Cardiovascular Endurance Run) than U.S. children in both age bands. U.S. children outperformed Portuguese children during throwing and handgrip tests. Kicking tests presented gender differences: Portuguese boys and U.S. girls outperformed their internationally matched counterparts.Conclusion: Cultural differences in physical education curricula and sports participation may impact differences in motor competence and fitness development in these countries.Carlos Luz Rita Cordovil Luis Paulo Rodrigues Zan Gao Jacqueline D.Goodway Ryan S.Sacko Danielle R.Nesbitt Rick C.Ferkel Larissa K.True David F.Stodden 2019Journal of Sport and Health Science2019,8,2:5
3Bioreduction of nitrate in groundwater using a pilot-scale hydrogen-based membrane biofilm reactor显示文摘A long-term pilot-scale H_(2)-based membrane biofilm reactor(MBfR)was tested for removal of nitrate from actual groundwater.A key feature of this secondgeneration pilot MBfR is that it employed lower cost polyester hollow fibers and still achieved high loading rate.The steady-state maximum nitrate surface loading at which the effluent nitrate and nitrite concentrations were below the Maximum Contaminant Level(MCL)was at least 5.9 g·N·(m^(2)·d)^(–1),which corresponds to a maximum volumetric loading of at least 7.7 kg·N·(m^(3)·d)^(–1).The steady-state maximum nitrate surface area loading was higher than the highest nitrate surface loading reported in the firstgeneration MBfRs using composite fibers(2.6 g·N·(m^(2)·d)^(–1)).This work also evaluated the H_(2)-utilization efficiency in MBfR.The measured H_(2)supply rate was only slightly higher than the stoichiometric H_(2)-utilization rate.Thus,H_(2)utilization was controlled by diffusion and was close to 100%efficiency,as long as biofilm accumulated on the polyester-fiber surface and the fibers had no leaks.Youneng TANG Michal ZIV-EL Chen ZHOU Jung Hun SHIN Chang Hoon AHN Kerry MEYER Daniel CANDELARIA David FRIESE Ryan OVERSTREET Rick SCOTT Bruce ERITTMANN 2010Frontiers of Environmental Science & Engineering2010,4,3:4
4The Cost-Effectiveness of Neoadjuvant Chemoradiation is Superior to a Surgery-First Approach in the Treatment of Pancreatic Head Adenocarcinoma显示文摘Daniel E. Abbott Ching-Wei David Tzeng Ryan P. Merkow Scott B. Cantor George J. Chang Matthew Harold Katz David J. Bentrem Karl Y. Bilimoria Christopher H. Crane Gauri R. Varadhachary James L. Abbruzzese Robert A. Wolff Jeffrey E. Lee Douglas B. Evans Jas 2013Annals of Surgical Oncology2013,,3:3
5p53-mediated transcriptional regulation and activation of the actin cytoskeleton regulatory RhoC to LIMK2 signaling pathway promotes cell survival显示文摘响应 DNA 损坏的房间命运的中央仲裁人是 p53,它调整涉及房间周期拘捕,幸存和 apoptosis 的基因的表示。尽管 DNA 损坏开始的许多回答被描绘了,肌动朊细胞骨架管理者的角色大部分是未知的。我们现在显示出那 RhoC 和秘鲁利玛机场之代号 kinase (LIMK2 ) 2 是 genotoxic 代理人导致的直接 p53 目标基因。尽管 RhoC 和 LIMK2 在肌动朊细胞骨架规定有生长得很好的角色,我们的结果显示 LIMK2 的激活也有支持幸存的功能追随者 DNA 损坏。由调停 siRNA 的击倒或选择的药理学封锁的 LIMK 抑制敏化房间到无线电 -- 或化疗,以便当与 LIMK 抑制结合了时,当单身地管理了时,是尚不致命的治疗导致了房间死亡。我们的调查结果建议把 LIMK 禁止者与 genotoxic 治疗相结合能比单个代理人的管理更有效,并且加亮在肌动朊细胞骨架管理者和 DNA 之间的一个新奇连接导致损坏的房间幸存机制。Daniel R Croft Diane Crighton Michael S Samuel Filipe C Lourenco June Munro Jenifer Wood Karim Bensaad Karen H Vousden Owen J Sansom Kevin M Ryan Michael F Olson 2011Cell Research2011,21,4:3
6Acoustofluidic separation enables early diagnosis of traumatic brain injury based on circulating exosomes显示文摘Traumatic brain injury(TBI)is a global cause of morbidity and mortality.Initial management and risk stratification of patients with TBI is made difficult by the relative insensitivity of screening radiographic studies as well as by the absence of a widely available,noninvasive diagnostic biomarker.In particular,a blood-based biomarker assay could provide a quick and minimally invasive process to stratify risk and guide early management strategies in patients with mild TBI(mTBI).Analysis of circulating exosomes allows the potential for rapid and specific identification of tissue injury.By applying acoustofluidic exosome separation—which uses a combination of microfluidics and acoustics to separate bioparticles based on differences in size and acoustic properties—we successfully isolated exosomes from plasma samples obtained from mice after TBI.Acoustofluidic isolation eliminated interference from other blood components,making it possible to detect exosomal biomarkers for TBI via flow cytometry.Flow cytometry analysis indicated that exosomal biomarkers for TBI increase in the first 24 h following head trauma,indicating the potential of using circulating exosomes for the rapid diagnosis of TBI.Elevated levels of TBI biomarkers were only detected in the samples separated via acoustofluidics;no changes were observed in the analysis of the raw plasma sample.This finding demonstrated the necessity of sample purification prior to exosomal biomarker analysis.Since acoustofluidic exosome separation can easily be integrated with downstream analysis methods,it shows great potential for improving early diagnosis and treatment decisions associated with TBI.Zeyu Wang Haichen Wang Ryan Becker Joseph Rufo Shujie Yang Brian E.Mace Mengxi Wu Jun Zou Daniel T.Laskowitz Tony Jun Huang 2021Microsystems & Nanoengineering2021,7,2:3
7MicroRNA-155 Promotes Autoimmune Inflammation by Enhancing Inflammatory T Cell Development显示文摘Ryan M. O’Connell Daniel Kahn William S.J. Gibson June L. Round Rebecca L. Scholz Aadel A. Chaudhuri Melissa E. Kahn Dinesh S. Rao David Baltimore 2010Immunity2010,,4:3
8Jaundice: an important, poorly recognized risk factor for diminished survival in patients with adenocarcinoma of the head of the pancreas显示文摘Steven M. Strasberg Feng Gao Dominic Sanford David C. Linehan William G. Hawkins Ryan Fields Danielle H. Carpenter Elizabeth M. Brunt Carolyn Phillips 2014HPB2014,,2:2
9Increased Quality of Life Among Hepatocellular Carcinoma Patients Treated with Radioembolization, Compared with Chemoembolization显示文摘Riad Salem Margaret Gilbertsen Zeeshan Butt Khairuddin Memon Michael Vouche Ryan Hickey Talia Baker Michael M. Abecassis Rohi Atassi Ahsun Riaz David Cella James L. Burns Daniel Ganger Al B. Benson Mary F. Mulcahy Laura Kulik Robert Lewandowski 2013Clinical Gastroenterology and Hepatology2013,,:2
10Systematic review of outcomes for endoscopic sinus surgery and subsequent aspirin desensitization in aspirin-exacerbated respiratory disease显示文摘Objective:To review and evaluate outcomes of patients with aspirin-exacerbated respiratory disease(AERD)following endoscopic sinus surgery and subsequent aspirin desensitization.Methods:Electronic searches of OVID MEDLINE(1948 to September 10,2019),EMBASE(1980 to September 10,2019),and PubMed were performed on September 10,2019.A systematic review of the literature was performed using the 2009 PRISMA guidelines.Studies with both preoperative and postoperative data for patients with AERD who underwent sinus surgery and aspirin desensitization were considered appropriate for inclusion.Publications were written in English and included patients aged 18 years or older.Results:Six studies met inclusion criteria for this systematic review.The primary outcome measure was change in symptom profile measured by patient-reported quality of life scores.The results demonstrate statistically significant improvement in symptoms following endoscopic sinus surgery,with sustained improvement following aspirin desensitization.Revision surgery rates were significantly lower in patients maintained on aspirin therapy.Conclusion:This review suggests that surgery followed by aspirin desensitization results in improvement in both subjective and objective outcome measures.The adjunctive use of aspirin desensitization allows for long-term stability in symptom scores.Recurrence of polyps and worsening symptoms requiring revision surgery occurs when aspirin maintenance therapy is inter-rupted.Lindsey Ryan Daniel Segarra Mark Tabor Arjun Parasher 2020World Journal of Otorhinolaryngology-Head and Neck Surgery2020,6,4:2
11The effects of corporate governance on firms’ credit ratings显示文摘Hollis Ashbaugh-Skaife Daniel W. Collins Ryan LaFond 2006Journal of Accounting and Economics2006,,1:2
12Central line-associated bloodstream infection among children with biliary atresia listed for liver transplantation显示文摘BACKGROUND Pre-transplant nutrition is a key driver of outcomes following liver transplantation in children.Patients with biliary atresia(BA) may have difficulty achieving satisfactory weight gain with enteral nutrition alone,and parenteral nutrition(PN) may be indicated.While PN has been shown to improve anthropometric parameters of children with BA listed for liver transplantation,less is known about the risks,particularly infectious,associated with this therapy among this specific group of patients.AIM To describe the incidence,microbiology,and risk factors of central line-associated bloodstream infection(CLABSI) among children with BA listed for liver transplantation.METHODS Retrospective review of children aged ≤ 2-years of age with BA who were listed for primary liver transplantation at Texas Children's Hospital from 2008 through2015(n = 96).Patients with a central line for administration of PN(n = 63) were identified and details of each CLABSI event were abstracted.We compared the group of patients who experienced CLABSI to the group who did not,to determine whether demographic,clinical,or laboratory factors correlated with development of CLABSI.RESULTS Nineteen of 63 patients(30%,95%CI:19,43) experienced 29 episodes of CLABSI during 4800 line days(6.04 CLABSI per 1000 line days).CLABSI was predominantly associated with Gram-negative organisms(14/29 episodes,48%)including Klebsiella spp.,Enterobacter spp.,and Escherichia coli.The sole polymicrobial infection grew Enterobacter cloacae and Klebsiella pneumoniae.Grampositive organisms(all Staphylococcus spp.) and fungus(all Candida spp.)comprised 9/29(31%) and 6/29(21%) episodes,respectively.No demographic,clinical,or laboratory factors were significantly associated with an increased risk for the first CLABSI event in Cox proportional hazards regression analysis CONCLUSION There is substantial risk for CLABSI among children with BA listed for liver transplantation.No clinical,demographic,or laboratory factor we tested emerged as an independent predictor of CLABSI.While our data did not show an impact of CLABSI on the short-term clinical outcome,it would seem prudent to implement CLABSI reduction strategies in this population to the extent that each CLABSI event represents potentially preventable hospitalization,unnecessary healthcare dollar expenditures,and may exact an opportunity cost,in terms of missed allograft offers.Nicole D Triggs Stacey Beer Sonam Mokha Kat Hosek Danielle Guffey Charles G Minard Flor M Munoz Ryan W Himes 2019World Journal of Hepatology2019,11,2:2
13A rapid dehydration leaf assay reveals stomatal response differences in grapevine genotypes显示文摘A simple and reliable way of phenotyping plant responses to dehydration was developed.Fully-developed leaves were detached and placed in a closed plastic box containing a salt solution to control the atmospheric water potential in the container.Three hours of dehydration(weight loss of the leaf)was optimal for measuring changes in stomatal response to dehydration.Application of the plant hormone abscisic acid(ABA)prior to leaf detachment decreased the amount of water loss,indicating that the assay was able to detect differences based on a stomatal response to dehydration.Five different Vitis genotypes(V.riparia,V.champinii,V.vinifera cv.Shiraz,V.vinifera cv.Grenache and V.vinifera cv.Cabernet Sauvignon)with known differences in drought tolerance were screened for their dehydration response and the results obtained corresponded to previous reports of stomatal responses in the vineyard.Significant differences in stomatal density along with differences in the amount and rate of water lost indicate differences in dehydration sensitivity among the genotypes screened.Differences in stomatal response to ABA were also detected.Shiraz had the lowest stomatal density and the highest ABA sensitivity among the genotypes screened,yet Shiraz lost the most amount of water,indicating that it was the least sensitive to dehydration.Despite having the highest stomatal density and intermediate stomatal sensitivity to ABA,V.riparia lost the smallest amount of water,indicating that it was the most sensitive to dehydration.The assay presented here represents a simple and reliable phenotyping method for plant responses to leaf dehydration.Daniel W Hopper Ryan Ghan Grant R Cramer 2014Horticulture Research2014,1,1:2
14Radiation Lobectomy: time-dependent analysis of future liver remnant volume in unresectable liver cancer as a bridge to resection显示文摘Michael Vouche Robert J. Lewandowski Rohi Atassi Khairuddin Memon Vanessa L. Gates Robert K. Ryu Ron C. Gaba Mary F. Mulcahy Talia Baker Kent Sato Ryan Hickey Daniel Ganger Ahsun Riaz Jonathan Fryer Juan Carlos Caicedo Michael Abecassis Laura Kulik Riad S 2013Journal of Hepatology2013,,:2
153D打印对环境空气质量的影响显示文摘3D打印作为近年来涌现出的一种新兴技术,似乎每周都有相关的故事出现在身边。根据WOhlers Associates发布的年度报告,3D打印发展迅速,在2008-2011年间,个人3D打印机的增长速度达到了350%。而实际上,学术上称为增材制造的这项重要技术,已经存在了数十年。受益于近年来CAD/CAM软件的快速发展,以及一些3D打印相关重要专利的到期失效,这项技术受到了公众广泛的关注,实现了爆炸性增长。Tim Ryan Daniel Hubbard 黄瑶 2017新材料产业2017,,1:2
16CXCR4–SDF-1 Signalling, Locomotion, Chemotaxis and Adhesion显示文摘Magda Kucia Kacper Jankowski Ryan Reca Marcin Wysoczynski Laura Bandura Daniel J. Allendorf Jin Zhang Janina Ratajczak Mariusz Z. Ratajczak 2004The Histochemical Journal2004,,3:2
17The contemporary management of splenic artery aneurysms显示文摘Ryan O. Lakin James F. Bena Timur P. Sarac Samir Shah Leonard P. Krajewski Sunita D. Srivastava Daniel G. Clair Vikram S. Kashyap 2011Journal of Vascular Surgery2011,,:2
18Polypeptide signaling for plant defensive genes exhibits analogies to defense signaling in animals显示文摘Daniel R Bergey Gregg A Howe Clarence A Ryan 1996PNAS1996,93,12:1
19The entertainment zone: Unplanned night-life and the revitalization of the American downtown显示文摘Campo Daniel and Brent Ryan Journal of Urban Design0,13,3:1
20A distributional analysis of the benefits of economic freedom显示文摘Ryan A. Compton Daniel C. Giedeman Gary A. Hoover 2013European Journal of Political Economy2013,,:1
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