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528篇 您的检索式:作者名="RONALD G"
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1Sonohysterography: Principles, technique and role in diagnosis of endometrial pathology显示文摘Sonohysterography (SHG), which provides enhanced endometrial visualization during standard transvaginal ultrasonography, is a relatively safe procedure for the evaluation of endometrial pathology. It can be used to evaluate patients with abnormal vaginal bleeding or infertility. This modality offers real time imaging of the endometrium without exposure to ionizing radiation. SHG is typically used in patients for whom standard transvaginal ultrasonography does not show the endometrium well, show a potential abnormality for which further imaging is required, or in patients without endometrial pathology defined on routine transvaginal imaging but in whom there is a strong clinical suspicion of an abnormality. This article will discuss the utility of the sonohysterogram in evaluation of various endometrial pathologies. Imaging examples of these pathological entities will be illustrated as well.Thomas Yang Amit Pandya Leonardo Marcal Ronald O Bude Joel F Platt Deepak G Bedi Khaled M Elsayes 2013World Journal of Radiology2013,5,3:5
2Heme oxygenase-1 overexpression increases liver injury after bile duct ligation in rats显示文摘AIM: To investigate the effects of heme oxygenase-1 (HO-1) against oxidant-induced injury caused by bile duct ligation (BDL). METHODS: Either cobalt protoporphyrin (CoPP), a HO-1 inducer, or saline were injected intraperitoneally in male SD-rats. Three days later, BDL or sham-operations were performed. Rats were sacrificed 3 wk after BDL and livers were harvested for histology. Fibrosis was evaluated by sirius red staining and image analysis. Alpha-smooth muscular actin, which indicates activation of stellate cells, was detected by immunohistochemical staining, and cytokine and collagen-Ⅰα (Col-Ⅰα) mRNA expression was detected using RNase protection assays. RESULTS: Serum alanine transaminase increased 8-fold above normal levels one day after BDL. Surprisingly, enzyme release was not reduced in rats receiving CoPP. Liver fibrosis was evaluated 3 wk after BDL and the sirius red-positive area was found to be increased to about 7.8%. However, in CoPP pretreated rats sirius red- positive areas were increased to about 11.7% after BDL. Collagen-Ⅰα and TGF-β mRNA increased significantly by BDL. Again, this effect was increased by HO-1 overexpression.CONCLUSION: Hepatic fibrosis due to BDL is not reduced by the HO-1 inducer CoPP. In contrast, HO-1 overexpression increases liver injury in rats under conditions of experimental chronic cholestasis.Matthias Froh Lars Conzelmann Peter Walbrun Susanne Netter Reiner Wiest Michael D Wheeler Mark Lehnert Takehiko Uesugi Jurgen Scholmerich Ronald G Thurman 2007World Journal of Gastroenterology2007,13,25:4
3脂质过氧化在再灌流性肝损伤中的作用显示文摘采用低流率-再灌流模型研究脂质过氧化在再灌流性肝损伤中的作用,肝脏经过90min低速率灌流未见明显损伤,当灌流速率恢复到正常后中心静脉周围区(PC区)细胞发生迅速不可逆损害,并伴有丙二醛生成率大幅度上升,低速率灌流期间,灌流液中黄嘌呤与次黄嘌吟浓度由原来的1.5和3.6μmol·L^(-1)逐步升高至5.5和11.5μmol·L^(-1),自由基清除剂儿茶酸能使再灌流期丙二醛生成率由295 nm01·g^(-1)·h^(-1)下降至109 nmol·g^(-1)·h^(-1),并使LDH释放率减少约50%,PC区细胞死亡率减少89%,再灌流初期用氮饱和灌流液冲洗3 min,使再灌流所致的LDH释放下降约50%,PC区细胞死亡率减少84%,别嘌吟醇(2~6mmol·L^(-1))对防止再灌流性肝损伤表现出明显的剂量效应关系。 与预计结果相反低浓度别嘌呤醇(0.5~1mmol·^(-1))能增加再灌流性肝损伤,400μmol·L^(-1)黄嘌呤则使再灌流性肝损伤明显减轻,其代谢产物尿酸对降低再灌流时丙二醛生成率以及细胞损害均表现出明显的剂量反应关系。钟沚 周炯亮 Ronald G THURMAN 1992中国药理学与毒理学杂志1992,6,2:4
4Change in ecosystem service values in the San Antonio area, Texas显示文摘Urs P Kreuter Heather G Harris Marty D Matlock Ronald E Lacey 2001Ecological Economics2001,,3:3
5Adjuvant imatinib mesylate after resection of localised, primary gastrointestinal stromal tumour: a randomised, double-blind, placebo-controlled trial显示文摘Ronald P DeMatteo Karla V Ballman Cristina R Antonescu Robert G Maki Peter WT Pisters George D Demetri Martin E Blackstein Charles D Blanke Margaret von Mehren Murray F Brennan Shreyaskumar Patel Martin D McCarter Jonathan A Polikoff Benjamin R Tan Kouros 2009The Lancet2009,,9669:2
6Bovine TLR2 and TLR4 properly transduce signals from Staphylococcus aureus and E. coli , but S. aureus fails to both activate NF-κB in mammary epithelial cells and to quickly induce TNFα and interleukin-8 (CXCL8) expression in the udder显示文摘Wei Yang Holm Zerbe Wolfram Petzl Ronald Marco Brunner Juliane Günther Christian Draing Sonja von Aulock Hans-Joachim Schuberth Hans-Martin Seyfert 2007Molecular Immunology2007,,5:2
7Comparison of estimators of variance for forest inventories with systematic sampling-results from artificial populations显示文摘Background:Large area forest inventories often use regular grids(with a single random start)of sample locations to ensure a uniform sampling intensity across the space of the surveyed populations.A design-unbiased estimator of variance does not exist for this design.Oftentimes,a quasi-default estimator applicable to simple random sampling(SRS)is used,even if it carries with it the likely risk of overestimating the variance by a practically important margin.To better exploit the precision of systematic sampling we assess the performance of five estimators of variance,including the quasi default.In this study,simulated systematic sampling was applied to artificial populations with contrasting covariance structures and with or without linear trends.We compared the results obtained with the SRS,Matern’s,successive difference replication,Ripley’s,and D’Orazio’s variance estimators.Results:The variances obtained with the four alternatives to the SRS estimator of variance were strongly correlated,and in all study settings consistently closer to the target design variance than the estimator for SRS.The latter always produced the greatest overestimation.In populations with a near zero spatial autocorrelation,all estimators,performed equally,and delivered estimates close to the actual design variance.Conclusion:Without a linear trend,the SDR and DOR estimators were best with variance estimates more narrowly distributed around the benchmark;yet in terms of the least average absolute deviation,Matern’s estimator held a narrow lead.With a strong or moderate linear trend,Matern’s estimator is choice.In large populations,and a low sampling intensity,the performance of the investigated estimators becomes more similar.Steen Magnussen Ronald EMcRoberts Johannes Breidenbach Thomas Nord-Larsen Göran Ståhl Lutz Fehrmann Sebastian Schnell 2020Forest Ecosystems2020,7,2:2
8膳食脂肪和心脏代谢健康:证据、争议和指导共识显示文摘Nita G Forouhi及其同事认为,尽管在营养研究和制定指南方面存在困难,但公众越来越能理解膳食脂肪和整体饮食的复杂性。Nita G Forouhi Ronald M Krauss Gary Taubes Walter Willett 仲琳(译) 王春筱(译) 杨军(校) 2021英国医学杂志中文版2021,24,3:2
9Liver Resection for Metastatic Colorectal Cancer in Patients with Concurrent Extrahepatic Disease: Results in 127 Patients Treated at a Single Center显示文摘Darren R. Carpizo PhD Chandrakanth Are MD William Jarnagin MD Ronald DeMatteo MD Yuman Fong MD Mithat G?nen PhD Leslie Blumgart MD Michael D'Angelica MD 2009Annals of Surgical Oncology2009,,8:2
10Preoperative CA 19-9 and the Yield of Staging Laparoscopy in Patients with Radiographically Resectable Pancreatic Adenocarcinoma显示文摘Shishir K. Maithel MD Stephen Maloney MD Corrine Winston MD Mithat G?nen PhD Michael I. D'Angelica MD Ronald P. DeMatteo MD William R. Jarnagin MD Murray F. Brennan MD Peter J. Allen MD 2008Annals of Surgical Oncology2008,,12:2
11Change in ecosystem service values in the San Antonio area, Texas显示文摘Urs P Kreuter Heather G Harris Marty D Matlock Ronald E Lacey 2001Ecological Economics2001,,3:2
12Alfalfa yield and quality as influenced by establishment method显示文摘Michael D H Kenneth J M Ronald G 2002Agronomy Journal2002,94,1:1
13A novel approach to digital beamforming显示文摘Roger G Pridham Ronald A Mucci 1978J Acoust Soc Am1978,63,2:1
14Genetic support for the dual nature of attention deficit hyperactivity disorder:Substantial genetic overlap between the inattentive and hyperactive - impulsive components显示文摘McLougblin G Ronald A Kuntsi J 2007J Abnorm Child Psychol2007,35,6:1
15Design and analysis of CAN networks for vehicles 显示文摘Ronald G L 2000Society of Automotive Engineers2000,,1:1
16The hnpact of the Alliance on the Partners: a Look at Cause- Brand Alliances 显示文摘Lafferty Barbara A Gold Smith Ronald E Huh G Tomas M 2004Psychology & Marketing2004,21,7:1
17Analysis of the error in the standard approximation used for multiplication of triangular and trapezoidal fuzzy numbers and the development of a new approximation 显示文摘Ronald E G Robert E Y 1997Fuzzy Sets and Systems1997,91,1:1
18A Perspective from Canada on Heritage and Tourism显示文摘Seale Ronald G 1996Annals of tourism research1996,23,2:1
19Monoclonal antibody -based ELISA for thiabendazole in liver显示文摘David L B Ronald G B Anne H B 1992J Agric Food Chem1992,40,:1
20An improved control scheme for a series-capacitive reactance compensator based on a voltagesource inverter显示文摘Bruce S Righy Ronald G Harley 1998IEEE Transaction on Applications1998,34,2:1
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