维普中文期刊产品整合服务
356篇 您的检索式:作者名="Machado G"
    题名 作者 年代 出处 被引量
1CO2 assimilation, photosynthetic light response curves, and water relations of 'Pera' sweet orange plants infected with Xylella fastidiosa显示文摘Habermann G Machado E C Rodrigues J D 2003Braz J Plant Physiol2003,15,2:1
2New oxidation catalysts based on iron(III) porphyrins immobilized on Mg-Al layered double hydroxides modified with triethanolamine 显示文摘CASTRO K A D F BAIL A GROSZEWICZ P B MACHADO G S SCHREINER W H WYPYCH F NAKAGAKI S 2010Appl Catal A: Gen2010,386,:1
3Break-even price for upstream activities in Brazil: Evaluation of the opportunity cost of oil production delay in a non-mature sedimentary production region显示文摘Szklo A S Carneiro J T G Machado G 2008Energy2008,33,:1
4Acute ghrelin administration reverses depressive like behavior induced by bilateral olfactory bulbeetomy in mice显示文摘Carlini V P Machado D G Buteler F 2012Peptides2012,35,2:1
5Chronic electrical stimmulition of the contrahsional lateral cerebellar nucleus enhances recover of motor function after cerebral ischemia in rats 显示文摘Machado A G Baker K B Schuster D 2009Brain Res2009,1280,16:1
6Evaluation of insecticidal activity of diterpenes and lignans from Aristolochia malmeana against Anticarsia gemmatalis 显示文摘Messiano G B Vieira L Machado M B 2008JAgric Food Chem2008,56,:1
7Energy and CarbonEmbodied in the International Trade of Brazil:An Input - Output Approach显示文摘Machado G Schaeffer R Worrell E 2001Ecological Economics2001,39,3:1
8Simultaneous follow-up of mouse colon lesions by colonoscopy and endoluminal ultrasound biomicroscopy显示文摘AIM:To evaluate the potential use of colonoscopy and endoluminal ultrasonic biomicroscopy(eUBM)to track the progression of mouse colonic lesions.METHODS:Ten mice were treated with a single azoxy-methane intraperitoneal injection(week 1)followed by seven days of a dextran sulfate sodium treatment in their drinking water(week 2)to induce inflammationassociated colon tumors.eUBM was performed simultaneously with colonoscopy at weeks 13,17-20 and21.A 3.6-F diameter 40 MHz mini-probe catheter was used for eUBM imaging.The ultrasound mini-probe catheter was inserted into the accessory channel of a pediatric flexible bronchofiberscope,allowing simultaneous acquisition of colonoscopic and eUBM images.During image acquisition,the mice were anesthetized with isoflurane and kept in a supine position over a stainless steel heated surgical waterbed at 37℃.Both eUBM and colonoscopic images were captured and stored when a lesion was detected by colonoscopy or when the eUBM image revealed a modified colon wall anatomy.During the procedure,the colon was irrigated with water that was injected through a flush port on the mini-probe catheter and that acted as the ultrasound coupling medium between the transducer and the colon wall.Once the acquisition of the last eUBM/colonoscopy section for each animal was completed,the colons were fixed,paraffin-embedded,and stained with hematoxylin and eosin.Colon images acquired at the first time-point for each mouse were compared with subsequent eUBM/colonoscopic images of the same sites obtained in the following acquisitions to evaluate lesion progression.RESULTS:All 10 mice had eUBM and colonoscopic images acquired at week 13(the first time-point).Two animals died immediately after the first imaging acquisition and,consequently,only 8 mice were subjected to the second eUBM/colonoscopy imaging acquisition(at the second time-point).Due to the advanced stage of colonic tumorigenesis,5 animals died after the second time-point image acquisition,and thus,only three were subjected to the third eUBM/colonoscopy imaging acquisition(the third time-point).eUBM was able to detect the four layers in healthy segments of colon:the mucosa(the first hyperechoic layer moving away from the mini-probe axis),followed by the muscularis mucosae(hypoechoic),the submucosa(the second hyperechoic layer)and the muscularis externa(the second hypoechoic layer).Hypoechoic regions between the mucosa and the muscularis externa layers represented lymphoid infiltrates,as confirmed by the corresponding histological images.Pedunculated tumors were represented by hyperechoic masses in the mucosa layer.Among the lesions that decreased in size between the first and third time-points,one of the lesions changed from a mucosal hyperplasia with ulceration at the top to a mucosal hyperplasia with lymphoid infiltrate and,finally,to small signs of mucosal hyperplasia and lymphoid infiltrate.In this case,while lesion regression and modification were observable in the eUBM images,colonoscopy was only able to detect the lesion at the first and second time-points,without the capacity to demonstrate the presence of lymphoid infiltrate.Regarding the lesions that increased in size,one of them started as a small elevation in the mucosa layer and progressed to a pedunculated tumor.In this case,while eUBM imaging revealed the lesion at the first time-point,colonoscopy was only able to detect it at the second time-point.All colonic lesions(tumors,lymphoid infiltrate and mucosal thickening)were identified by eUBM,while colonoscopy identified just76%of them.Colonoscopy identified all of the colonic tumors but failed to diagnose lymphoid infiltrates and increased mucosal thickness and failed to differentiate lymphoid infiltrates from small adenomas.During the observation period,most of the lesions(approximately67%)increased in size,approximately 14%remained unchanged,and 19%regressed.CONCLUSION:Combining eUBM with colonoscopy improves the diagnosis and the follow-up of mouse colonic lesions,adding transmural assessment of the bowel wall.Rossana C Soletti Kelly Z Alves Marcelo AP de Britto Dyanna G de Matos Mnica Soldan Helena L Borges Joo C Machado 2013World Journal of Gastroenterology2013,19,44:1
9The determinant step in ergot alkaloid biosynthesis by an endophyte of perennial ryegrass 显示文摘Wang J H Machado C Panaccione D G 2004Fungal Genet Biol2004,41,:1
10Loss of focal adhesion kinase inhibits epidermal growth factor receptor-dependent migration and induces aggregation of NH2-terminal FAK in the nuclei of apoptotic glioblastoma cells显示文摘Jones G Machado J Merlo A 2001Cancer Res2001,61,15:1
11Gene expression profiling of jejunal Peyer's patches in ju- venile and adult pigs显示文摘Machado J G Hyland K A Dvorak C M 2005Mammalian Genome2005,16,8:1
12Poly ( ethylene-co-vinylacetate) ( EVA) as wax in hibit or of a Brazili an crude oil: oilviscosity, pour point and phase behavior of organic solutions 显示文摘Machado A L C Lucas E F Gonzalez G 2001Journal of Petroleum Science and Engineering2001,32,234:1
13Energy and carbon embodied in the international trade of Brazil:an input-output approach显示文摘Machado G Schaeffer R Worrell E 0,,3:1
14Antimicrobial activity of propolis extract against Staphylococcus coagulase positive andMalassezia pachydermatis of canine otitis显示文摘Cardoso RL Maboni F Machado G 2010Vet Microbiol2010,142,34:1
15Energy and carbon embodied in the international trade of Brazil: an input-output approach显示文摘Machado G Schaeffer R Worrell E 2001Ecological Economics2001,39,3:1
16Accompanying of parameters of color, gloss and hardness on polymeric films coated with pigmented inks cured by different radiation doses of ultraviolet light 显示文摘Bardi M A G Machado L D B 2012Radiation Physics and Chemistry2012,81,9:1
17显示文摘Marotti R E Giorgi P Machado G 2006Sol Energ Mat Sol C2006,90,:1
18Energy and Carbon Embodied in the International Trade of Brazil: An Input-output Approach 显示文摘Machado G Schaeffer R Worrell E 2001Ecological Economics2001,39,3:1
19Poly (ethylene-co-vinyl acetate)(EVA)as wax inhibitor of a Brazilian crude oil:Oil viscosity, pour point and phase behavior of organic solutions显示文摘MACHADO A L C LUCAS E F GONZáLEZ G 2001Journal of Petroleum Science and Engineering2001,32,2:1
20Molecular characterization of grapevine plants transformed with GFLV resistance genes:II显示文摘Maghuly F Leopold S da Camara Machado A Borroto Fernandez E Ali Khan M Gambino G Gribaudo I Schartl A Laimer M 0,,:1
返回顶部 每页显示:
共18页 首页 上一页 第1页 下一页 末页 /18 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费