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| 1 | Retrograde-viewing device improves adenoma detection rate in colonoscopies for surveillance and diagnostic workup显示文摘AIM:To determine which patients might benefit most from retrograde viewing during colonoscopy through subset analysis of randomized,controlled trial data.METHODS:The Third Eye Retroscope Randomized Clinical Evaluation(TERRACE) was a randomized,controlled,multicenter trial designed to evaluate the efficacy of a retrograde-viewing auxiliary imaging device that is used during colonoscopy to provide a second video image which allows viewing of areas on the proximal aspect of haustral folds and flexures that are difficult to see with the colonoscope's forward view.We performed a post-hoc analysis of the TERRACE data to determine whether certain subsets of the patient population would gain more benefit than others from use of the device.Subjects were patients scheduled for colonoscopy for screening,surveillance or diagnostic workup,and each underwent same-day tandem examinations with standard colonoscopy(SC) and Third Eye colonoscopy(TEC),randomized to SC followed by TEC or vice versa.RESULTS:Indication for colonoscopy was screening in 176/345 subjects(51.0%),surveillance after previous polypectomy in 87(25.2%) and diagnostic workup in 82(23.8%).In 4 subjects no indication was specified.Previously reported overall results had shown a net additional adenoma detection rate(ADR) with TEC of 23.2% compared to SC.Relative risk(RR) of missing adenomas with SC vs TEC as the initial procedure was 1.92(P = 0.029).Post-hoc subset analysis shows additional ADRs for TEC compared to SC were 4.4% for screening,35.7% for surveillance,55.4% for diagnostic and 40.7% for surveillance and diagnostic combined.The RR of missing adenomas with SC vs TEC was 1.11(P = 0.815) for screening,3.15(P = 0.014) for surveillance,8.64(P = 0.039) for diagnostic and 3.34(P = 0.003) for surveillance and diagnostic combined.Although a multivariate Poisson regression suggested gender as a possibly significant factor,subset analysis showed that the difference between genders was not statistically significant.Age,bowel prep quality and withdrawal time did not significantly affect the RR of missing adenomas with SC vs TEC.Mean sizes of adenomas detected with TEC and SC were similar at 0.59 cm and 0.56 cm,respectively(P = NS).CONCLUSION:TEC allows detection of significantly more adenomas compared to SC in patients undergoing surveillance or diagnostic workup,but not in screening patients(ClinicalTrials.gov Identifier:NCT01044732). | Peter D Siersema Amit Rastogi Anke M Leufkens Paul A Akerman Kassem Azzouzi Richard I Rothstein Frank P Vleggaar Alessandro Repici Giacomo Rando Patrick I Okolo Olivier Dewit Ana Ignjatovic Elizabeth Odstrcil James East Pierre H Deprez Brian P Saunders Anthony N Kalloo Bradley Creel Vikas Singh Anne Marie Lennon Daniel C DeMarco | 2012 | World Journal of Gastroenterology2012，18，26： | 6 |
| 2 | Surrogate-based modeling and dimension reduction techniques for multi-scale mechanics problems显示文摘Successful modeling and/or design of engineering systems often requires one to address the impact of multiple 'design variables' on the prescribed outcome.There are often multiple,competing objectives based on which we assess the outcome of optimization.Since accurate,high fidelity models are typically time consuming and computationally expensive,comprehensive evaluations can be conducted only if an efficient framework is available.Furthermore,informed decisions of the model/hardware's overall performance rely on an adequate understanding of the global,not local,sensitivity of the individual design variables on the objectives.The surrogate-based approach,which involves approximating the objectives as continuous functions of design variables from limited data,offers a rational framework to reduce the number of important input variables,i.e.,the dimension of a design or modeling space.In this paper,we review the fundamental issues that arise in surrogate-based analysis and optimization,highlighting concepts,methods,techniques,as well as modeling implications for mechanics problems.To aid the discussions of the issues involved,we summarize recent efforts in investigating cryogenic cavitating flows,active flow control based on dielectric barrier discharge concepts,and lithium(Li)-ion batteries.It is also stressed that many multi-scale mechanics problems can naturally benefit from the surrogate approach for 'scale bridging.' | Wei Shyy Young-Chang Cho Wenbo Du Amit Gupta Chien-Chou Tseng Ann Marie Sastry | 2011 | Acta Mechanica Sinica2011，27，6： | 4 |
| 3 | 2,3-Diaryl-3H-imidazo[4,5-b]pyridine derivatives as potential anticancer and anti-inflammatory agents显示文摘In this study we examined the suitability of the 3H-imidazo[4,5-b]pyridine ring system in developing novel anticancer and anti-inflammatory agents incorporating a diaryl pharmacophore. Eight 2,3-diaryl-3H-imidazo[4,5-b]pyridine derivatives retrieved from our in-house database were evaluated for their cytotoxic activity against nine cancer cell lines. The results indicated that the compounds showed moderate cytotoxic activity against MCF-7, MDA-MB-468, K562 and SaOS2 cells, with K562 being the most sensitive among the four cancer cell lines. The eight 2,3-diaryl-3H-imidazo[4,5-b]pyridine derivatives were also evaluated for their COX-1 and COX-2 inhibitory activity in vitro. The results showed that compound 3f exhibited 2-fold selectivity with IC_(50) values of 9.2 and 21.8 mmol/L against COX-2 and COX-1, respectively. Molecular docking studies on the most active compound 3f revealed a binding mode similar to that of celecoxib in the active site of the COX-2 enzyme. | Erin Marie Kirwen Tarun Batra Chandrabose Karthikeyan Girdhar Singh Deora Vandana Rathore Chaitanya Mulakayala Naveen Mulakayala Amy Catherine Nusbaum Joel Chen Haneen Amawi Kyle Mc Intosh Sahabjada Neelam Shivnath Deepak Chowarsia Nisha Sharma Md Arshad Piyush Trivedi Amit KTiwari | 2017 | Acta Pharmaceutica Sinica B2017，7，1： | 3 |
| 4 | General approach to diffusion of periodically kicked charges in a magnetic field 显示文摘 | Dana Itzhack Amit Mary | 1995 | Phys Rev E1995，51，： | 1 |
| 5 | Flunarizine in the prophylaxis of migrainous vertigo: a randomized controlled trial显示文摘 | Anjali Lepcha Sophia Amalanathan Ann Mary Augustine Amit Kumar Tyagi Achamma Balraj | 2014 | European Archives of Oto-Rhino-Laryngology2014，，11： | 1 |
| 6 | Reciprocal Th1 and Th17 regulation by mesenchymal stem cells: Implication for multiple sclerosis显示文摘 | Peter J.Darlington Marie‐No?lleBoivin ChristelRenoux Mo?raFran?ois JacquesGalipeau Mark S.Freedman Harold L.Atkins Jeffrey A.Cohen LuisSolchaga Amit‐Bar‐Or | 2010 | Ann Neurol2010，，4： | 1 |
| 7 | 维生素D类似物治疗大瘤体和延长治疗鼠视网膜母细胞瘤模型的疗效显示文摘目的:研究维生素D类似物1,25-(OH):16-ene-25-yne维生素D3(16,23-D3)和1-α羟基维生素D2(1α-OH—D2)在抑制大的视网膜母细胞瘤体的生长和在一种转基因模型中长期应用的效果。 | Daniel M, Albert Amit Kumar Stephen A. Strugnell Soesiawati R. Darjatmoko Janice M. Lokken Mary J. Lindstrome Sarit Patel 刘敬(译) | 2005 | 美国医学会眼科杂志(中文版)2005，17，2： | 0 |
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