维普中文期刊产品整合服务
792篇 您的检索式:作者名="Vidal L"
    题名 作者 年代 出处 被引量
1hsa-miR-29c and hsa-miR-135b differential expression aspotential biomarker of gastric carcinogenesis显示文摘AIM: To investigate the expression profiles of hsa-mi R-29 c and hsa-mi R-135 b in gastric mucosal samples and their values as gastric carcinogenesis biomarkers. METHODS: The expression levels of hsa-mi R-29 c and hsa-mi R-135 b in normal gastric mucosa, non-atrophic chronic gastritis, intestinal metaplasia and intestinaltype gastric adenocarcinoma were analysed using quantitative real-time PCR. The difference between hsa-mi R-29 c and hsa-mi R-135 b expression profiles in the grouped samples was evaluated by ANOVA and Student's t-test tests. The results were adjusted for multiple testing by using Bonferroni's correction. P values ≤ 0.05 were considered statistically significant. To evaluate hsa-mi R-29 c and hsa-mi R-135 b expressions as potential biomarkers of gastric carcinogenesis, we performed a receiver operating characteristic curve analysis and the derived area under the curve, and a Categorical Principal Components Analysis. In silico identification of the genetic targets of hsa-mi R-29 c and hsa-mi R-135 b was performed using different prediction tools, in order to identify possible genes involved in gastric carcinogenesis.RESULTS: The expression levels of hsa-mi R-29 c were higher in normal gastric mucosal samples, and decreased progressively in non-atrophic chronic gastritis samples, intestinal metaplasia samples and intestinal-type gastric adenocarcinoma samples. The expression of hsa-mi R-29 c in the gastric lesions showed that non-atrophic gastritis have an intermediate profile to gastric normal mucosa and intestinal-type gastric adenocarcinoma, and that intestinal metaplasia samples presented an expression pattern similar to that in intestinal-type gastric adenocarcinoma. This micro RNA(mi RNA) has a good discriminatory accuracy between normal gastric samples and(1) intestinal-type gastric adenocarcinoma; and(2) intestinal metaplasia, and regulates the DMNT3 A oncogene. hsa-mi R-135 b is up-regulated in non-atrophic chronic gastritis and intestinal metaplasia samples and down-regulated in normal gastric mucosa and intestinal-type gastric adenocarcinoma samples. Non-atrophic chronic gastritis and intestinal metaplasia are significantly different from normal gastric mucosa samples. hsa-mi R-135 b expression presented a greater discriminatory accuracy between normal samples and gastric lesions. This mi RNA was associated with Helicobacter pylori presence in non-atrophic chronic gastritis samples and regulates the APC and KLF4 tumour suppressor genes.CONCLUSION: Our results provide evidence of epigenetic alterations in non-atrophic chronic gastritis and intestinal metaplasia and suggest that hsa-mi R-29 c and hsa-mi R-135 b are promising biomarkers of gastric carcinogenesis.Amanda Ferreira Vidal Aline MP Cruz Leandro Magalhães Adenilson L Pereira Ana KM Anaissi Nélisson CF Alves Paulo JBS Albuquerque Rommel MR Burbano Samia Demachki Ândrea Ribeiro-dos-Santos 2016World Journal of Gastroenterology2016,22,6:7
2Fecal immunochemical test accuracy in average-risk colorectal cancer screening显示文摘AIM:To assess the fecal immunochemical test(FIT)accuracy for colorectal cancer(CRC)and advanced neoplasia(AN)detection in CRC screening.METHODS:We performed a multicentric,prospective,double blind study of diagnostic tests on asymptomatic average-risk individuals submitted to screening colonoscopy.Two stool samples were collected and the fecal hemoglobin concentration was determined in the first sample(FIT1)and the highest level of both samples(FITmax)using the OC-sensor.Areas under the curve(AUC)for CRC and AN were calculated.The best FIT1and FITmax cut-off values for CRC were determined.At this threshold,number needed to scope(NNS)to detect a CRC and an AN and the cost per lesion detected were calculated.RESULTS:About 779 individuals were included.An AN was found in 97(12.5%)individuals:a CRC in 5(0.6%)and an advanced adenoma(≥10 mm,villous histology or high grade dysplasia)in 92(11.9%)subjects.For CRC diagnosis,FIT1 AUC was 0.96(95%CI:0.95-0.98)and FITmax AUC was 0.95(95%CI:0.93-0.97).For AN,FIT1 and FITmax AUC were similar(0.72,95%CI:0.66-0.78 vs 0.73,95%CI:0.68-0.79,respectively,P=0.34).Depending on the number of determinations and the positivity threshold cut-off used sensitivity for AN detection ranged between 28%and 42%and specificity between 91%and 97%.At the best cut-off point for CRC detection(115 ng/mL),the NNS to detect a CRC were 10.2 and 15.8;and the cost per CRC was 1814€and 2985€on FIT1 and FITmax strategies respectively.At this threshold the sensitivity,NNS and cost per AN detected were 30%,1.76,and 306€,in FIT1 strategy,and 36%,2.26€and 426€,in FITmax strategy,respectively.CONCLUSION:Performing two tests does not improve diagnostic accuracy,but increases cost and NNS to detect a lesion.Vicent Hernandez Joaquin Cubiella M Carmen Gonzalez-Mao Felipe Iglesias Concepción Rivera M Begoa Iglesias Lucía Cid Ines Castro Luisa de Castro Pablo Vega Jose Antonio Hermo Ramiro Macenlle Alfonso Martínez-Turnes David Martínez-Ares Pamela Estevez Estela Cid M Carmen Vidal Angeles López-Martínez Elisabeth Hijona Marta Herreros-Villanueva Luis Bujanda Jose Ignacio Rodriguez-Prada the COLONPREV study investigators 2014World Journal of Gastroenterology2014,20,4:4
3MeSH pesticide trace analysis using solid-phase extraction and gas chromatography with electron capture and tandem mass spectrometric detection in water samples显示文摘Martinez Vidal J L Pablos Espada M C Garrido Frenich A Jounal of Chromatography A0,,:2
4Influence of a nucleotide oligomerization domain 1 (NOD1) polymorphism and NOD2 mutant alleles on Crohn's disease phenotype显示文摘AIM: To examine genetic variation of nucleotide oligomerization domain 1 (NOD1 ) and NOD2 ,their respective influences on Crohn's disease phenotype and gene-gene interactions. METHODS: (ND1+326561 ) NOD1 polymorphism and SNP8,SNP12 and SNP13 of NOD2 were analyzed in 97 patients and 50 controls. NOD2 variants were determined by reaction restriction fragment length polymorphism analysis. NOD1 genotyping and NOD2 variant confirmation were performed by specific amplification and sequencing. RESULTS: The distribution of NOD1 polymorphism in patients was different from controls (P = 0.045) and not altered by existence of NOD2 mutations. In this cohort,30.92% patients and 6% controls carried at least one NOD2 variant (P < 0.001) with R702W being the most frequent variant. Presence of at least one NOD2 mutation was inversely associated with colon involvement (9.09% with colon vs 36.4% with ileal or ileocolonic involvement,P = 0.04) and indicative of risk of penetrating disease (52.63% with penetrating vs 25.64% with non-penetrating or stricturing behavior,P = 0.02). L1007finsC and double NOD2 mutation conferred the highest risk for severity of disease (26.3% with penetrating disease vs 3.8% with non-penetrating or stricturing behavior presented L1007finsC,P = 0.01 and 21.0% with penetrating disease vs 2.5% with non-penentrating or stricturing behavior carried double NOD2 mutation,P = 0.007). Exclusion of patients with NOD2 mutations from phenotype/NOD1 -genotype analysis revealed higher prevalence of 11 genotype in groups of younger age at onset and colonic location. CONCLUSION: This study suggests population differences in the inheritance of risk NOD1 polymorphism and NOD2 mutations. Although no interaction between NOD1 -NOD2 was noticed,a relationship between disease location and Nod-like receptor molecules was established.Elisabet Cantó Elena Ricart David Busquets David Monfort Esther García-Planella Dolors González Joaquim Balanzó José L Rodríguez-Sánchez Sílvia Vidal 2007World Journal of Gastroenterology2007,13,41:2
5Dual Peroxisome Proliferator–Activated Receptor α/δ Agonist GFT505 Improves Hepatic and Peripheral Insulin Sensitivity in Abdominally Obese Subjects显示文摘Bertrand Cariou Rémy Hanf Stéphanie Lambert-Porcheron Yassine Za?r Valérie Sauvinet Benoit No?l Laurent Flet Hubert Vidal Bart Staels Martine Laville 2013Diabetes Care2013,,10:2
6Long-Term Effects of Sleeve Gastrectomy and Roux-en-Y Gastric Bypass Surgery on Type 2 Diabetes Mellitus in Morbidly Obese Subjects显示文摘Amanda Jiménez Roser Casamitjana Lílliam Flores Judith Viaplana Ricard Corcelles Antonio Lacy Josep Vidal 2012Annals of Surgery2012,,6:2
7IgG Subclasses Against Helicobacter pylori Isolates: An important Tool for Disease Characterization显示文摘F. Martínez‐Becerra G. Castillo‐Rojas S. Ponce de León Y. López‐Vidal* 2012Scandinavian Journal of Immunology2012,,1:2
8ECG after near-drowning mimicking acute coronary syndrome with left main coronary artery involvement显示文摘We present the case of a 74-year-old man with diabetes and hypertension who had to be rescued owing to a near-drowning syndrome at sea.When he was rescued,he complained of dyspnea and chest pain.An electrocardiogram(ECG)suggested acute coronary syndrome(ACS)affecting the left main coronary artery.Therefore,he was referred to our hospital for urgent coronary angiography.Alfredo Vidal García Javier Lacunza Ruiz José María Lpez Ayala Mariano Valdés 2013World Journal of Emergency Medicine2013,4,1:2
9Determination of multiclass pesticides in food commodities by pressurized liquid extraction using GC-MS/MS and LC-MS/MS 显示文摘Frenich A G Salvador I M Vidal J L M Lopez T L 2005Analytical and Bioanalytical Chemistry2005,33,78:1
10Expression and distribution of vascular endothelial growth factor receptor Flk-1 in the rat pituitary显示文摘Vidal S Lloyd RV Moya L 2002J Histochem Cytochem2002,50,4:1
11Synthesis of utility systems by simulated显示文摘Maia L O A Vidal L A Qassim R Y 1995Comp & Chem Eng1995,19,:1
12Quantitative age-related changes in dorsal lateral geniculate nucleus rdlay neurons of the rat显示文摘VIDAL L RUIZ C VILLENA A 2004Neuroscience esearch2004,48,:1
13The influence of electron density on the formation of streamers in electrical discharges triggered with ultrashort laser pulses显示文摘Fontaine B L Vidal F Comtois D 1999IEEE Trans on Plas- ma Science1999,27,3:1
145-azacitidine prolongs overall survival in patients with myelodysplastic syndrome-a systematic review and meta-analysis 显示文摘Gurion R Vidal L Gafter-Gvili A 2010Haematotogica2010,95,2:1
15Development of fast screening methods for the analysis of veterinary drug residues in milk by liquid chromatography-triple quadrupole mass spectrometry显示文摘VIDAL J L M FRENICH A G AGUILERA-LUIZ M M 2010Analytical and Bioanalytical Chemistry2010,397,7:1
16Cryopreservation of chest- nut by vitrification of in vitro-grown shoot tips 显示文摘Vidal N Sanchez C Jorquera L 2005In Vitro Cell Dev-P12005,41,1:1
17Expressionand localization of estrogen receptor-beta in murine andhuman bone显示文摘Vidal 0 Kindblom L G Ohlesson C 1999Bone Miner Res1999,14,:1
18Efficacy and safety of aminoglycoside monotherapy: systematic review and meta- analysis of randomized controlled trial显示文摘Vidal L Gafter- Gvili A Borok S 2007J Antimicrob Chcmother2007,60,2:1
19Chemical Modifications and Study of Structure - Function Interactions in Proteins 显示文摘Vidal V Cases E Cuq J L 2003OCL - Oleagineux Crops Gras Lipides2003,10,1:1
20Synthesis of utility systems with variable demands using simulated annealing显示文摘Maia L O A Vidal L A Qassim R Y 1997Comp & Chem Eng1997,21,:1
返回顶部 每页显示:
共40页 首页 上一页 第1页 下一页 末页 /40 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