维普中文期刊产品整合服务
375篇 您的检索式:作者名="La P R"
    题名 作者 年代 出处 被引量
1Aging related methylation influences the gene expression of key control genes in colorectal cancer and adenoma显示文摘AIM To analyze colorectal carcinogenesis and age-related DNA methylation alterations of gene sequences associated with epigenetic clock CpG sites. METHODS In silico DNA methylation analysis of 353 epigenetic clock Cp G sites published by Steve Horvath was performed using methylation array data for a set of 123 colonic tissue samples [64 colorectal cancer(CRC), 42 adenoma, 17 normal; GEO accession number: GSE48684]. Among the differentially methylated agerelated genes, secreted frizzled related protein 1(SFRP1) promoter methylation was further investigated in colonic tissue from 8 healthy adults, 19 normal children, 20 adenoma and 8 CRC patients using bisulfite-specific PCR followed by methylation-specific high resolution melting(MS-HRM) analysis. m RNA expression of age-related 'epigenetic clock' genes was studied using Affymetrix HGU133 Plus2.0 whole transcriptome data of 153 colonic biopsy samples(49 healthy adult, 49 adenoma, 49 CRC, 6 healthy children)(GEO accession numbers: GSE37364, GSE10714, GSE4183, GSE37267). Whole promoter methylation analysis of genes showing inverse DNA methylationgene expression data was performed on 30 colonic samples using methyl capture sequencing.RESULTS Fifty-seven age-related Cp G sites including hypermethylated PPP1R16 B, SFRP1, SYNE1 and hypomethylated MGP, PIPOX were differentially methylated between CRC and normal tissues(P < 0.05, ?β≥ 10%). In the adenoma vs normal comparison, 70 CpG sites differed significantly, including hypermethylated DKK3, SDC2, SFRP1, SYNE1 and hypomethylated CEMIP, SPATA18(P < 0.05, ?β≥ 10%). In MS-HRM analysis, the SFRP1 promoter region was significantly hypermethylated in CRC(55.0% ± 8.4 %) and adenoma tissue samples(49.9% ± 18.1%) compared to normal adult(5.2% ± 2.7%) and young(2.2% ± 0.7%) colonic tissue(P < 0.0001). DNA methylation of SFRP1 promoter was slightly, but significantly increased in healthy adults compared to normal young samples(P < 0.02). This correlated with significantly increased SFRP1 m RNA levels in children compared to normal adult samples(P < 0.05). In CRC tissue the mR NA expression of 117 agerelated genes were changed, while in adenoma samples 102 genes showed differential expression compared with normal colonic tissue(P < 0.05, logF C > 0.5). The change of expression for several genes including SYNE1, CLEC3 B, LTBP3 and SFRP1, followed the same pattern in aging and carcinogenesis, though not for all genes(e.g., MGP). CONCLUSION Several age-related DNA methylation alterations can be observed during CRC development and progression affecting the m RNA expression of certain CRC- and adenoma-related key control genes.Orsolya Galamb Alexandra Kalmár Barbara Kinga Barták árpád V Patai Katalin Leiszter Bálint Péterfia Barnabás Wichmann Gábor Valcz Gábor Veres Zsolt Tulassay Béla Molnár 2016World Journal of Gastroenterology2016,22,47:7
2前蛋白转化酶枯草溶菌素9变异、低密度脂蛋白胆固醇与神经认知功能损害的关系显示文摘尽管之前的研究引发了对抑制前蛋白转化酶枯草溶菌素9(proprotein convertase subtilisin/kexintype9,PCSK9)造成神经认知功能损害事件的关注,但近期一个第3期随机试验并没有发现药物性PCSK9抑制与神经认知损害有关。黄洁 叶鹏 Mefford MT Rosenson RS Cushman M Farkouh ME McClure LA Wadley VG Irvin MR Bittner VA Safford MM Somaratne R Monda KL Muntner P Levitan EB 2017中华高血压杂志2017,25,12:2
3益生菌抑制自发性高血压大鼠的菌群失调和血压升高:短链脂肪酸的作用显示文摘该研究旨在评估益生菌短双歧杆菌CECT7263(BFM)及发酵乳酸杆菌CECT5716(LC40)、短链脂肪酸丁酸盐及醋酸盐对自发性高血压大鼠(spontaneously hypertensive rat,SHR)心血管的作用。方法和结果:5周龄的Wistar Kyoto大鼠(WKY)10只和周龄匹配的SHR 50只随机分为6组:对照WKY、对照SHR、BFM干预的SHR、LC40干预的SHR、丁酸盐干预的SHR和醋酸盐干预的SHR。袁源(译) 练桂丽(审校) Robles-Vera I Toral M de la Visitación N Sánchez M Gómez-Guzmán M Romero M Yang T Izquierdo-Garcia JL Jiménez R Ruiz-Cabello J Guerra-Hernández E Raizada MK Pérez-Vizcaíno F Duarte J 2020中华高血压杂志2020,28,9:2
4Mitochondrial reactive oxygen species generation triggers inflammatory response and tissue injury associated with hepatic ischemia–reperfusion: Therapeutic potential of mitochondrially targeted antioxidants显示文摘Partha Mukhopadhyay B?la Horváth Zsuzsanna Zsengell?r Sándor Bátkai Zongxian Cao Malek Kechrid Eileen Holovac Katalin Erd?lyi Galin Tanchian Lucas Liaudet Isaac E. Stillman Joy Joseph Balaraman Kalyanaraman Pál Pacher 2012Free Radical Biology and Medicine2012,,5:2
5Involvement of serum retinoids and Leiden mutation in patients with esophageal, gastric, liver, pancreatic, and colorectal cancers in Hungary显示文摘AIM: To analyze the serum levels of retinoids and Leiden mutation in patients with esophageal, gastric, liver,pancreatic, and colorectal cancers.METHODS: The changes in serum levels of retinoids (vitamin A, α- and β-carotene, α- and β-cryptoxanthin,zeaxanthin, lutein) and Leiden mutation were measured by high liquid performance chromatography (HPLC)and polymerase chain reaction (PCR) in 107 patients (70 males/37 females) with esophageal (0/8), gastric (16/5), liver (8/7), pancreatic (6/4), and colorectal (30/21including 9 patients suffering from in situ colon cancer)cancer. Fifty-seven healthy subjects (in matched groups)for controls of serum retinoids and 600 healthy blood donors for Leiden mutation were used.RESULTS: The serum levels of vitamin A and zeaxanthin were decreased significantly in all groups of patients with gastrointestinal (GI) tumors except for vitamin A in patients with pancreatic cancer. No changes were obtained in the serum levels of α- and β-carotene,α- and β-cryptoxanthin, zeaxanthin, lutein in patients with GI cancer. The prevalence of Leiden mutation significantly increased in all groups of patients with GI cancer.CONCLUSION: Retinoids (as environmental factors)are decreased significantly with increased prevalence of Leiden mutation (as a genetic factor) in patients before the clinical manifestation of histologically different (planocellular and hepatocellular carcinoma, and adenocarcinoma) GI cancer.Gyula Mózsik Gy(o|¨)rgy Rumi András D(o|¨)m(o|¨)t(o|¨)r Mária Figler Beáta Gasztonyi El(?)d Papp Alajos Pár Gabriella Pár József Belágyi Zoltán Matus Béla Melegh 2005World Journal of Gastroenterology2005,11,48:2
6Competition between fusion-evaporation and multifragmentation in central collisions in ^(58)Ni+^(48)Ca at 25A MeV显示文摘The experimental data concerning the58Ni+48Ca reaction at Elab(Ni)=25A MeV,collected by using the CHIMERA 4π device,have been analyzed in order to investigate the competition among different reaction mechanisms for central collisions in the Fermi energy domain.As a main criterion for centrality selection we have chosen the flow angle(flow) method,making an event-by-event analysis that considers the shape of events,as it is determined by the eigenvectors of the experimental kinetic-energy tensor.For the selected central events(flow >60°) some global variables,good to characterize the pattern of central collisions have been constructed.The main features of the reaction products were explored by using different constraints on some of the relevant observables,like mass and velocity distributions and their correlations.Much emphasis was devoted,for central collisions,to the competition between fusion-evaporation processes with subsequent identification of a heavy residue and a possible multifragmentation mechanism of a well defined(if any) transient nuclear system.Dynamical evolution of the system and pre-equilibrium emission were taken into account by simulating the reactions in the framework of transport theories.Different approaches have been envisaged(dynamical stochastic BNV calculations + sequential SIMON code,QMD,CoMD,etc.).Preliminary comparison of the experimental data with BNV calculations shows reasonable agreement with the assumption of sequential multifragmentation emission in the mass region of IMFs close to the heavy residues.Possible deviations from sequential processes were found for those IMFs in the region of masses intermediate between the mass of heavy residues and the mass of light IMFs.Further simulations are in progress.The experimental analysis will be enriched also by information obtained inspecting the IMF-IMF correlation function,in order to elucidated the nature of space-time decay property of the emitting source associated with events having the largest IMF multiplicity.FRANCALANZA L ABBONDANNO U AMORINI F BARLINI S BINI M BOUGAULT R BRUNO M CARDELLA G CASINI G AGOSTINO M D' De FILIPPO V De SANCTIS J GERACI E GIUSSANI A GRAMEGNA F GUIOT B KRAVCHUK V La GUIDARA E LANZALONE G Le NEINDRE N MAIOLINO C MARINI P MORELLI L OLMI A PAGANO A PAPA M PIANTELLI S PIRRONE S POLITI G POGGI G PORTO F RUSSOTTO P RIZZO F VANNINI G VANNUCCI L 2013Nuclear Science and Techniques2013,24,5:2
7Molecular analysis of antigens targeted by protective antibodies in rapid expulsion of Trichinella spiralis显示文摘Arasu P Ellis LA Iglesias R 1994Mol Biochem Parasitol1994,65,:1
8Characterization of my coviruses and analyses of chitinase secretion in the biocontrol fungus Metarhizium anisopliae显示文摘Gimenez-Pecci M de la Bogo P M R Santi L Moraes C K de Correa C T Vainstein M H Schrank A 2002Current Microbiology2002,45,5:1
9Nm23/nucleoside diphosphate kinase:toward a structural and biochemical understanding of its bio logical functions显示文摘de la Rosa A Williams R L Steeg P S 1995Bioessays1995,17,1:1
10Highly effective conversion of CO2 to methanol over supported and promoted copper-based catalysts : Influence of support and promoter 显示文摘Toyir J Piscina P R de la Fierro JLG 2001Applied Catalysis B : Environmental2001,29,:1
11Use of biofuels to producehydrogen (reformation processes)显示文摘de la Piscina P R Homs N 2008Chemical SocietyReviews2008,37,11:1
12查看详情显示文摘Gohil P Evans T E Ferron J R Moyer R A Petty C C Burrell K H Casper T A Garofalo A M Hyatt A W Jayakumar R J Kessel C Kim J Y La Haye R J Lohr J Luce T C Makowski M A Mazon D Menard J Murakami M Politzer P A Prater R Wade M R 0,,:1
13The effect of fatty acid composition on the acrylation kinetics of epoxidized triacylglycerols 显示文摘LA SCALA J J BUNKER S P WOOL R P 2002American Oil Chemists''Society2002,79,:1
14DDT induces apoptosis in human mononuclear cells in vitro and is associated with increased apoptosis in exposed children 显示文摘Pérez-Maldonado IN D??az-Barriga F de la Fuente H González-Amaro R Calderón J Yá?ez L 2004Environ Res2004,94,1:1
15On the Fractal Dimensionsof Stream Network显示文摘La Barbera P Rosso R 1989Water Resource Research1989,25,4:1
16Peripheral blood mononuclear cells proliferation and Th1/Th2 cytokine production in response to streptococcal M protein in psoriatic patients 显示文摘P rez - Lorenzo R N ez - Oreza LA Ganna - Quen PM 2006Int J Dermatol2006,45,5:1
17Diagenesis and reservoir quality evolution of palaeocene deep-water,marine sandstones,the Shetland-Faroes Basin,British continental shelf显示文摘Mansurbeg H Morad S Salem A Marfil R El-ghali M A K Nystuen J P Caja M A Amorosi A Garcia D A Iglesia La 2008Marine and Petroleum Geology2008,25,:1
18Characterization of thymic atrophy and the mechanism of thymocyte depletion after in vivo exposure to a mixture of herbrcides 显示文摘De la Rose P Barnett JB Schafer R 2005J toxicol Environ Health A2005,68,2:1
19Validation and comparison of advanced differential interferometry techniques: murcia metropolitan area case study显示文摘HERRERA G TOMAS R LOPEZ-SANCHEZ J M DELGADO J VICENTE F MULAS J COOKSLEY G SANCHEZ M DURO J ARNAUD A BLANCO P DUQUE S MALLORQUI J J DE la VEGA-PANIZO R MONSERRAT O 2008ISPRS Journal of Photogrammetry and Remote Sensing2008,,:1
20Phylogeographic analysis of haplogroup E3b ( E-M215 ) Y chromosomes reveals multiple migratory events within and out of Africa显示文摘Cruciani F La Fratta R Santolamazza P 2004Am J Hum Genet2004,74,:1
返回顶部 每页显示:
共19页 首页 上一页 第1页 下一页 末页 /19 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