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2820篇 您的检索式:作者名="Lowe S"
    题名 作者 年代 出处 被引量
1纤维蛋白原检测的指南显示文摘英国血液学界通常通过纤维蛋白原的测定来判断纤维蛋白量的降低和质的异常,评估出血危险性.纤维蛋白原的升高通常预示各种缺血性事件的存在,建议进行纤维蛋白原检测就是基于这种观点.Mackie IJ Kitchen S Machin SJ Lowe SDO 董宁征 2004国外医学(输血及血液学分册)2004,27,2:11
2Renin-angiotensin system in the kidney: What is new?显示文摘The renin-angiotensin system(RAS)has been known for more than a century as a cascade that regulates body fluid balance and blood pressure.AngiotensinⅡ(AngⅡ)has many functions in different tissues;however it is on the kidney that this peptide exerts its main functions.New enzymes,alternative routes for AngⅡformation or even active AngⅡ-derived peptides have now been described acting on AngⅡAT1or AT2receptors,or in receptors which have recently been cloned,such as Mas and AT4.Another interesting observation was that old members of the RAS,such as angiotensin converting enzyme(ACE),renin and prorenin,well known by its enzymatic activity,can also activate intracellular signaling pathways,acting as an outside-in signal transduction molecule or on the renin/(Pro)renin receptor.Moreover,the endocrine RAS,now is also known to have paracrine,autocrine and intracrine action ondifferent tissues,expressing necessary components for local AngⅡformation.This in situ formation,especially in the kidney,increases AngⅡlevels to regulate blood pressure and renal functions.These discoveries,such as the ACE2/Ang-(1-7)/Mas axis and its antangonistic effect rather than classical deleterious AngⅡeffects,improves the development of new drugs for treating hypertension and cardiovascular diseases.Fernanda M Ferr?o Lucienne S Lara Jennifer Lowe 2014World Journal of Nephrology2014,3,3:5
3Dysfunctional stem and progenitor cells impair fracture healing with age显示文摘Successful fracture healing requires the simultaneous regeneration of both the bone and vasculature;mesenchymal stem cells (MSCs) are directed to replace the bone tissue, while endothelial progenitor cells (EPCs) form the new vasculature that supplies blood to the fracture site. In the elderly, the healing process is slowed, partly due to decreased regenerative function of these stem and progenitor cells. MSCs from older individuals are impaired with regard to cell number, proliferative capacity, ability to migrate, and osteochondrogenic differentiation potential. The proliferation, migration and function of EPCs are also compromised with advanced age. Although the reasons for cellular dysfunction with age are complex and multidimensional, reduced expression of growth factors, accumulation of oxidative damage from reactive oxygen species, and altered signaling of the Sirtuin-1 pathway are contributing factors to aging at the cellular level of both MSCs and EPCs. Because of these geriatric-specific issues, effective treatment for fracture repair may require new therapeutic techniques to restore cellular function. Some suggested directions for potential treatments include cellular therapies, pharmacological agents, treatments targeting age-related molecular mechanisms, and physical therapeutics. Advanced age is the primary risk factor for a fracture, due to the low bone mass and inferior bone quality associated with aging;a better understanding of the dysfunctional behavior of the aging cell will provide a foundation for new treatments to decrease healing time and reduce the development of complications during the extended recovery from fracture healing in the elderly.Diane R Wagner Sonali Karnik Zachary J Gunderson Jeffery J Nielsen Alanna Fennimore Hunter J Promer Jonathan W Lowery M Terry Loghmani Philip S Low Todd O McKinley Melissa A Kacena Matthias Clauss Jiliang Li 2019World Journal of Stem Cells2019,11,6:3
4Positron emission tomography scanning in the evaluation of hepatocellular carcinoma显示文摘M.Akram Khan Connie S Combs Elizabeth M Brunt Val J Lowe Michael K Wolverson Harvey Solomon Brian T Collins Adrian M.Di Bisceglie 2000Journal of Hepatology2000,,5:2
5REM: active queue management 显示文摘Athuraliya S Li V H Low S H 2001IEEE Network2001,15,3:2
6Safety of Green Tea Extracts: A Systematic Review by the US Pharmacopeia显示文摘Sarma Dandapantula N Barrett Marilyn L Chavez Mary L Gardiner Paula Ko Richard Mahady Gail B Marles Robin J Pellicore Linda S Giancaspro Gabriel I Dog Tieraona Low 2008Drug Safety2008,,6:2
7Reliability of ultrasound ovarian-adnexal reporting and data system amongst less experienced readers before and after training显示文摘BACKGROUND The 2018 ovarian-adnexal reporting and data system(O-RADS)guidelines are aimed at providing a system for consistent reports and risk stratification for ovarian lesions found on ultrasound.It provides key characteristics and findings for lesions,a lexicon of descriptors to communicate findings,and risk characterization and associated follow-up recommendation guidelines.However,the ORADS guidelines have not been validated in North American institutions or amongst less experienced readers.AIM To evaluate the diagnostic accuracy and inter-reader reliability of ultrasound ORADS risk stratification amongst less experienced readers in a North American institution with and without pre-test training.METHODS A single-center retrospective study was performed using 100 ovarian/adnexal lesions of varying O-RADS scores.Of these cases,50 were allotted to a training cohort and 50 to a testing cohort via a non-randomized group selection process in order to approximately equal distribution of O-RADS categories both within and between groups.Reference standard O-RADS scores were established through consensus of three fellowship-trained body imaging radiologists.Three PGY-4 residents were independently evaluated for diagnostic accuracy and inter-reader reliability with and without pre-test O-RADS training.Sensitivity,specificity,positive predictive value,negative predictive value(NPV),and area under the curve(AUC)were used to measure accuracy.Fleiss kappa and weighted quadratic(pairwise)kappa values were used to measure inter-reader reliability.Statistical significance was P<0.05.RESULTS Mean patient age was 40±16 years with lesions ranging from 1.2 to 22.5 cm.Readers demonstrated excellent specificities(85%-100%pre-training and 91%-100%post-training)and NPVs(89%-100%pre-training and 91-100%post-training)across the O-RADS categories.Sensitivities were variable(55%-100%pre-training and 64%-100%post-training)with malignant ORADS 4 and 5 Lesions pre-training and post-training AUC values of 0.87-0.95 and 0.94-098,respectively(P<0.001).Nineteen of 22(86%)misclassified cases in pre-training were related to mischaracterization of dermoid features or wall/septation morphology.Fifteen of 17(88%)of posttraining misclassified cases were related to one of these two errors.Fleiss kappa inter-reader reliability was‘good’and pairwise inter-reader reliability was‘very good’with pre-training and post-training assessment(k=0.76 and 0.77;and k=0.77-0.87 and 0.85-0.89,respectively).CONCLUSION Less experienced readers in North America achieved excellent specificities and AUC values with very good pairwise inter-reader reliability.They may be subject to misclassification of potentially malignant lesions,and specific training around dermoid features and smooth vs irregular inner wall/septation morphology may improve sensitivity.Prayash Katlariwala Mitchell P Wilson Yeli Pi Baljot S Chahal Roger Croutze Deelan Patel Vimal Patel Gavin Low 2022World Journal of Radiology2022,14,9:2
8The reflection of guided waves from circumferential notches in pipes 显示文摘Alleyne D N Lowe M J S Cawley P 1998Trans ASME J of Appl Mech1998,65,:2
9Second consensus statement on the diagnosis of MSA 显示文摘Gilman S Wenning GK Low PA 2008Neurology2008,71,9:1
10Formation of nitrate and ammonium-ions in titanium-dioxide mediated photocatalytic degradation of organic-compounds compounds containing nitrogen-atoms 显示文摘 McEvoy S R Matthews R W 1991 1991Environ Sci Technol1991,25,:1
11Expression of immune genes in turbot (Scophthalmus maximus) fed a nucleotide-supplemented diet 显示文摘Low C Wadsworth S Burrells C 2003Aquaculture2003,22,:1
12Growth of anaerobic rumen fungi on defined and semi-defined media lacking rumen fluid显示文摘LOWE S E THEODOROU M K TRINCI A P J 1985Journal of General Microbiology1985,131,:1
13Autoantibodies to ganglionic acetylcholine receptors in autoimmune autonomic neuropathies显示文摘Vernino S Low PA Fealey RD 2000N Engl J Med2000,343,:1
14Lymph node status influences follow-up thyroglobulin levels in papillary thyroid cancer 显示文摘Low TH Delbridge L Sidhu S 2008Ann Surg Oncol2008,15,10:1
15Serious Hazardsof Transfusion(SHOT)initiative:analysis of the firsttwo annual reports显示文摘Williamson LM Lowe S Love EM 1999Br Med J1999,319,:1
16A simple pendulum tech-nique for achieving seismic isolation显示文摘Zayas V Low S ahin S 1990EarthquakeSpectra1990,,6:1
17REM: active queue management显示文摘ATHURALIYA S LI V H LOW S H YIN Q 2001IEEE Network2001,15,3:1
18Coronary in-stent restenosis:current status and future strategies显示文摘LOWE H C OESTERLE S N KHACHIGIAN L M 2002J Am Coll Cardiol2002,39,2:1
19Identification of severe acute respiratory syndrome in Canada显示文摘Poutanen S M Low D E Henry B 2003N Engl J Med2003,348,20:1
20Guided waves in curved pipes显示文摘DEMMA A CAWLEY P LOWE M J S 2002Review of Progress in Quantitative Nondestructive Evaluation2002,21,:1
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