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410篇 您的检索式:作者名="Mark D C"
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1Calcium phosphate cements for bone engineering and their biological properties显示文摘Calcium phosphate cements(CPCs) are frequently used to repair bone defects. Since their discovery in the 1980 s, extensive research has been conducted to improve their properties, and emerging evidence supports their increased application in bone tissue engineering. Much effort has been made to enhance the biological performance of CPCs, including their biocompatibility, osteoconductivity, osteoinductivity, biodegradability,bioactivity, and interactions with cells. This review article focuses on the major recent developments in CPCs,including 3 D printing, injectability, stem cell delivery, growth factor and drug delivery, and prevascularization of CPC scaffolds via co-culture and tri-culture techniques to enhance angiogenesis and osteogenesis.Hockin HK Xu Ping Wang Lin Wang Chongyun Bao Qianming Chen Michael D Weir Laurence C Chow Liang Zhao Xuedong Zhou Mark A Reynolds 2017Bone Research2017,5,4:14
2INT-767 improves histopathological features in a dietinduced ob/ob mouse model of biopsy-confirmed nonalcoholic steatohepatitis显示文摘AIM To characterize the efficacy of the dual FXR/TGR5 receptor agonist INT-767 upon histological endpoints in a rodent model of diet-induced and biopsy-confirmed non-alcoholic steatohepatitis(NASH).METHODS The effects of INT-767 on histological features of NASH were assessed in two studies using Lep^(ob/ob)(ob/ob) NASH mice fed the AMLN diet(high fat with transfat, cholesterol and fructose). In a proof-of-conceptstudy, Lep^(ob/ob)(ob/ob) NASH mice were first dosed with INT-767(3 or 10 mg/kg for 8 wk). A second ob/ob NASH study compared INT-767(3 and 10 mg/kg) to obeticholic acid(OCA)(10 or 30 mg/kg; 16 wk). Primary histological endpoints included qualitative and quantitative assessments of NASH. Other metabolic and plasma endpoints were also assessed. A comparative assessment of INT-767 and OCA effects on drug distribution and hepatic gene expression was performed in C57 Bl/6 mice on standard chow. C57 Bl/6 mice were orally dosed with INT-767 or OCA(1-30 mg/kg) for 2 wk, and expression levels of candidate genes were assessed by RNA sequencing and tissue drug levels were measured by liquid chromatography tandem-mass spectrometry.RESULTS INT-767 dose-dependently(3 and 10 mg/kg, PO, QD, 8 wk) improved qualitative morphometric scores on steatohepatitis severity, inflammatory infiltrates and fibrosis stage. Quantitative morphometric analyses revealed that INT-767 reduced parenchymal collagen area, collagen fiber density, inflammation(assessed by Galectin-3 immunohistochemistry) and hepatocyte lipid droplet area following INT-767 treatment. In a comparative study(16 wk), the FXR agonists OCA(10 and 30 mg/kg) and INT-767(3 and 10 mg/kg) both improved NASH histopathology, with INT-767 exerting greater therapeutic potency and efficacy than OCA. Mechanistic studies suggest that both drugs accumulate similarly within the liver and ileum, however, the effects of INT-767 may be driven by enhanced hepatic, but not ileal, FXR function. CONCLUSION These findings confirm the potential utility of FXR and dual FXR/TGR5 activation as disease intervention strategies in NASH.Jonathan D Roth Michael Feigh Sanne S Veidal Louise KD Fensholdt Kristoffer T Rigbolt Henrik H Hansen Li C Chen Mathieu Petitjean Weslyn Friley Niels Vrang Jacob Jelsing Mark Young 2018World Journal of Gastroenterology2018,24,2:7
3跨音速转子叶顶泄漏流/主流交界面的前移机制显示文摘采用数值计算和实验研究相结合的方法,研究了跨音速转子叶顶泄漏流与主流交界面轴向位置随流量的变化规律和机制。该跨音转子是美国圣母大学一级半跨音速压气机转子。研究发现机匣壁面脉线分布能够定性反映壁面轴向剪切应力分布,可用来识别叶顶泄漏流与主流的交界面位置。通过机匣壁面的脉线分布,可以看出机匣壁面存在两条零剪切应力线。第一条零剪切应力线表示来流与叶顶泄漏流之间交界面的时间和周向平均轴向位置,在小流量工况下交界面靠近顶部叶片的前缘。计算和实验结果都表明,随着质量流量的减小,叶顶泄漏流与主流交界面的轴向位置不断向叶片前缘移动。在近失速点,交界面到达叶片前缘,泄漏流即将溢出。泄漏流与主流的轴向动量比随流量减小不断增大的变化规律进一步说明,间隙区域泄漏流与主流的轴向动量平衡是导致交界面不断前移直至溢出的内在机制。杜娟 林峰 陈静宜 Mark H Ross Joshua D Cameron Scott C Morris 2011工程热物理学报2011,32,6:3
4Testing for HCV Infection: An Update of Guidance for Clinicians and Laboratorians显示文摘Getchell Jane P Wroblewski Kelly E DeMaria Alfred Bean Christine L Parker Monica M Pandori Mark Dufour D Robert Busch Michael P Brecher Mark E Meyer William A Pesano Rick L Teo Chong-Gee Beckett Geoffrey A Araujo Aufra C Branson Bernard M D 2013MMWR. Morbidity and Mortality Weekly Report2013,,18:3
5Treatment of relapsing autoimmune pancreatitis with immunomodulators and rituximab: the Mayo Clinic experience显示文摘Phil A Hart Mark D Topazian Thomas E Witzig Jonathan E Clain Ferga C Gleeson Robin R Klebig Michael J Levy Randall K Pearson Bret T Petersen Thomas C Smyrk Aravind Sugumar Naoki Takahashi Santhi S Vege Suresh T Chari 2013Gut2013,,11:2
6Treatment of relapsing autoimmune pancreatitis with immunomodulators and rituximab: the Mayo Clinic experience显示文摘Phil A Hart Mark D Topazian Thomas E Witzig Jonathan E Clain Ferga C Gleeson Robin R Klebig Michael J Levy Randall K Pearson Bret T Petersen Thomas C Smyrk Aravind Sugumar Naoki Takahashi Santhi S Vege Suresh T Chari 2013Gut2013,,11:2
7Percutaneous transluminal angioplasty balloons for endoscopic ultrasound-guided pancreatic duct interventions显示文摘BACKGROUND Endoscopic ultrasound(EUS)-guided main pancreatic duct(PD)access may be used when conventional endoscopic retrograde cholangiopancreatography(ERCP)techniques fail.The use of a percutaneous transluminal angioplasty balloon(PTAB),originally developed for vascular interventions,can be used to facilitate transmural(e.g.,transgastric)PD access and to dilate high-grade pancreatic strictures.AIM To describe the technique,efficacy,and safety of PTABs for EUS-guided PD interventions.METHODS Patients who underwent EUS with use of a PTAB from March 2011 to August 2021 were retrospectively identified from a tertiary care medical center supply database.PTABs included 3-4 French angioplasty catheters with 3-4 mm balloons designed to use over a 0.018-inch guidewire.The primary outcome was technical success.Secondary outcomes included incidence of adverse events(AEs)and need for early reintervention.RESULTS A total of 23 patients were identified(48%female,mean age 55.8 years).Chronic pancreatitis was the underlying etiology in 13(56.5%)patients,surgically altered anatomy(SAA)with stricture in 7(30.4%),and SAA with post-operative leak in 3(13.0%).Technical success was achieved in 20(87%)cases.Overall AE rate was 26%(n=6).All AEs were mild and included 1 pancreatic duct leak,2 cases of post-procedure pancreatitis,and 3 admissions for post-procedural pain.No patients required early re-intervention.CONCLUSION EUS-guided use of PTABs for PD access and/or stricture management is feasible with an acceptable safety profile and can be considered in patients when conventional ERCP cannulation fails.Jad P AbiMansour Barham K Abu Dayyeh Michael J Levy Andrew C Storm John A Martin Bret T Petersen Ryan J Law Mark D Topazian Vinay Chandrasekhara 2022World Journal of Gastrointestinal Endoscopy2022,14,8:2
8无心血管病者尿钠排泄、血压与未来心血管病及死亡风险显示文摘高血压是心血管病的危险因素。代表膳食钠摄入的尿钠排泄增加与血压相关。但在一些观察性研究中,低钠摄入与死亡率增加相关。进一步研究应评估混杂相关性是否能解释钠摄入与预后的关系。研究者分析英国生物银行参加者(n=457484,平均年龄56.3岁,44.7%为男性)尿电解质与血压的数据。采用Kawasaki公式估算每日尿钠排泄量。研究者分析基线无心血管病、治疗的高血压或糖尿病者(n=322624)钠排泄与血压的关系,并评估钠排泄与致死性及非致死性心血管病、心力衰竭及死亡发生率的关系。Welsh CE Welsh P Jhund P Delles C Celis-Morales C Lewsey JD Gray S Lyall D Iliodromiti S Gill JMR Sattar N Mark PB 赵狄 练桂丽 2019中华高血压杂志2019,27,6:2
9Electric load forecasting using an artificial neural network 显示文摘Park D C El-Sharkawi M A Marks R J 1991IEEE Transactions on Power Systems1991,6,2:2
10The matrix protein of Newcastle disease virus localizes to the nucleus via a bipartite nuclear localization signa显示文摘Nataliea A C Mark E D 1993Virol1993,195,2:1
11Spratt the evolutionary history of methicillin-resistant Staphylococcus anreus (MRSA)显示文摘 Enright D Ashley Robinson 2002PNAS2002,99,11:1
12Depression and long-term mortality risk in patients with coronary artery disease显示文摘 Helm S Mark D B 1996Am J Cardiol1996,78,6:1
13Transgenic zebrafish using transposable elements显示文摘Karl J C Mark D U Kimberly J 2011Methods Cell Biol2011,104,:1
14Reliability and within subject variability ofVE,VO2,heart rate and blood pressure during submaximum cycle ergometry显示文摘Becque M D Katch V Marks C 0,,04:1
15Bacterial RNA chaperones confer abiotic stress tolerance in plants and improved grain yield in maize under water-limited condition 显示文摘Paolo C Dave W Robert J B Don C A Jay H Martin S Mark A Ganesh K Sara S Robert D Santiago N Stephanie B Mary F Jayaprakash T Santanu D Christopher B Michael H L Jacqueline E H 2008Plant Physiology2008,147,2:1
16Gravity Fields of the Southern Ocean from Geosat Data显示文摘McAdoo D C Marks K M 1992Journal of Geophysical Research1992,97,3:1
17Real-time landslide warning during heavy rainfall显示文摘Keefer D K Wilson R C Mark R K 1987Science1987,238,:1
18Real-time landslide warning during heavy rainfall显示文摘Keefer D K Wilson R C Mark RK 1987Science1987,238,:1
19Anthocyanin and anthocyanoplast content of cruciferous seedlings subjected to mineral nutrient deficiencies显示文摘Mark Hodges D Nozzolillo C 0,,06:1
20A comparison of dental and dentoalveolar changes between rapid palatal expansion and nickel-titanium palatal expansion显示文摘Christopher C Peter N Mark D 2001Am J Orthod Dentofacial Orthop2001,19,1:1
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