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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
2Prevalence of SLC22A4, SLC22A5 and CARD15 gene mutations in Hungarian pediatric patients with Crohn’s disease显示文摘AIM: To investigate the frequency of the common NOD2/CARD15 susceptibility variants and two functional polymorphisms of OCTN cation transporter genes in Hungarian pediatric patients with Crohn’s disease (CD). METHODS: A cohort of 19 unrelated pediatric and 55 unrelated adult patients with Crohn’s disease and 49 healthy controls were studied. Genotyping of the three common CD-associated CARD15 variants (Arg702Trp, Gly908Arg and 1007finsC changes) with the SLC22A4 1672C→T, and SLC22A5 -207G→C mutations was performed by direct sequencing of the specifi c regions of these genes.RESULTS: At least one CARD15 mutation was present in 52.6% of the children and in 34.5% of the adults compared to 14.3% in controls. Surprisingly, strongly different mutation profi le was detected in the pediatric versus adult patients. While the G908R and 1007finsC variants were 18.4% and 21.1% in the pediatric group, they were 1.82% and 11.8% in the adults, and were 1.02% and 3.06% in the controls, respectively. The R702W allele was increased approximately two-fold in the adult subjects, while in the pediatric group it was only approximately 64% of the controls (9.09% in the adults, 2.63% in pediatric patients, and 4.08% in the controls). No accumulation of the OCTN variants was observed in any patient group versus the controls.CONCLUSION: The frequency of the NOD2/CARD15 susceptibility variants in the Hungarian pediatric CD population is high and the profile differs from the adult CD patients, whereas the results for SLC22A4 and SLC22A5 mutation screening do not confirm the assumption that the carriage of these genotypes means an obligatory susceptibility to CD.Judit Bene Lili Magyari Gábor Talián Katalin Komlósi Beáta Gasztonyi Beáta Tari gnes Várkonyi Gyula Mózsik Béla Melegh 2006World Journal of Gastroenterology2006,12,34:6
3Serrated pathway:Alternative route to colorectal cancer显示文摘Serrated polyps have been an area of intense focus for gastroenterologists over the past several years. Contrary to what was thought before,a growing body of literature indicates that these polyps can be precursors of colorectal cancer(CRC).Most of these lesions, particularly those in the proximal colon,have so far been under-recognized and missed during colonoscopy,qualifying these lesions to be the main cause of interval cancers.It is estimated that 10%-20%of CRCs evolve through this alternative,serrated pathway, with a distinct genetic and epigenetic profile.Aberrant DNA methylation plays a central role in the development of this CRC subtype.This characteristic molecular background is reflected in a unique pathological and clinical manifestation different from cancers arising via the traditional pathway.In this review we would like to highlight morphological,molecular and clinical features of this emerging pathway that are essential for gastroenterologists and may influence their everyday practice.rpád V Patai Béla Molnár Zsolt Tulassay Ferenc Sipos 2013World Journal of Gastroenterology2013,19,5:4
4Celiac disease serology in patients with different pretest probabilities: Is biopsy avoidable?显示文摘AIM: To establish the diagnostic performance of sev-eral serological tests, individually and in combination, for diagnosing celiac disease (CD) in patients with different pretest probabilities, and to explore potential se- rological algorithms to reduce the necessity for biopsy. METHODS: We prospectively performed duodenal biopsy and serology in 679 adults who had either high risk (n = 161) or low risk (n = 518) for CD. Blood samples were tested using six assays (enzyme-linked immunosorbent assay) that detected antibodies to tissue transglutaminase (tTG) and deamidated gliadin peptide (DGP). RESULTS: CD prevalence was 39.1% in the high-risk population and 3.3% in the low-risk group. In high-risk patients, all individual assays had a high diagnostic efficacy [area under receiving operator characteristic curves (AU ROC): 0.968 to 0.999]. In contrast, assays had a lower diagnostic efficacy (AU ROC: 0.835 to 0.972) in the low-risk group. Using assay combinations, it would be possible to reach or rule out diagnosis of CD without biopsy in 92% of cases in both pretest populations. We observed that the new DGP/tTG Screen assay resulted in a surplus compared to more conventional assays in any clinical situation. CONCLUSION: The DGP/tTG Screen assay could be considered as the best initial test for CD. Combinations of two tests, including a DGP/tTG Screen, might be able to diagnose CD accurately in different clinical scenarios making biopsy avoidable in a high proportion of subjects.Emilia Sugai María L Moreno Hui J Hwang Ana Cabanne Adriana Crivelli Fabio Nach-man Horacio Vázquez Sonia Niveloni Julio Argonz Roberto Mazure Graciela La Motta María E Caniggia Edgardo Smecuol Néstor Chopita Juan C Gómez Eduardo Maurińo Julio C Bai 2010World Journal of Gastroenterology2010,16,25:4
5经皮经导管射频消融去肾交感神经术与螺内酯对难治性高血压昼夜节律和血压变异性的影响显示文摘经皮经导管射频消融去肾交感神经术(sympathetic renal denervation,SRD)可作为药物控制不佳的难治性高血压患者的一种替代治疗方法,SRD对减少短期血压变异性(blood pressure variability,BPV)有效。然而,这个作用尚未在随机对照试验中证实。本研究旨在比较螺内酯和SRD对昼夜血压和BPV的影响。方法:对一项随机试验进行析因分析,de la Sierra A Pareja J Armario P Barrera  Yun S Vázquez S Sans L Pascual J Oliveras A 陈云 叶鹏 2017中华高血压杂志2017,25,8:3
6Regulated upon activation,normal T cell expressed and secreted(RANTES)levels in the peripheral blood of patients with Alzheimer’s disease显示文摘Alzheimer’s disease(AD)is the most common type of dementia,but it is very difficult to diagnose with certainty,so many AD studies have attempted to find early and relevant diagnostic markers.Regulated upon activation,normal T cell expressed and secreted(RANTES,also known as C-C chemokine ligand)is a chemokine involved in the migration of T cells and other lymphoid cells.Changes in RANTES levels and its expression in blood or in cerebrospinal fluid have been reported in some neurodegenerative diseases,such as Parkinson’s disease and multiple sclerosis,but also in metabolic diseases in which inflammation plays a role.The aim of this observational study was to assess RANTES levels in peripheral blood as clinical indicators of AD.Plasma levels of RANTES were investigated in 85 AD patients in a relatively early phase of AD(median 8.5 months after diagnosis;39 men and 46 women;average age 75.7 years),and in 78 control subjects(24 men and 54 women;average age 66 years).We found much higher plasma levels of RANTES in AD patients compared to controls.A negative correlation of RANTES levels with age,disease duration,Fazekas scale score,and the medial temporal lobe atrophy(MTA)score(Scheltens’s scale)was found in AD patients,i.e.,the higher levels corresponded to earlier stages of the disease.Plasma RANTES levels were not correlated with cognitive scores.In AD patients,RANTES levels were positively correlated with the levels of pro-inflammatory cytokines interleukin-6 and tumor necrosis factor-α,which is consistent with the wellknown fact that AD is associated with inflammatory processes.RANTES levels were also positively correlated with insulin levels in AD patients,with insulin resistance(HOMA-R)and pancreatic beta cell function(HOMA-F).This study evaluated several clinical and metabolic factors that may affect plasma levels of RANTES,but these factors could not explain the increases in RANTES levels observed in AD patients.Plasma levels of RANTES appear to be an interesting peripheral marker for early stages of AD.The study was approved by the Ethics Committee of Institute of Endocrinology,Prague,Czech Republic on July 22,2011.Gabriela Vacínová Daniela Vejražkova Robert Rusina Iva Holmerová Hana Vaňková Eva Jarolímová Josef Včelák Běla Bendlová Markéta Vaňková 2021Neural Regeneration Research2021,16,4:3
72013年美国心脏病学会/美国心脏协会胆固醇管理指南在美国心脏病学实践中的应用显示文摘2013年美国心脏病学会/美国心脏协会(American College of Cardiology/American Heart Association,ACC/AHA)胆固醇管理指南建议在符合治疗标准的患者中采用中等强度至高强度他汀类药物治疗。该研究的目的在于审查2013年ACC/AHA指南在美国心脏病学实践中的应用情况。刘莉 叶鹏 Pokharel Y Tang F Jones PG Nambi V Bittner VA Hira RS Nasir K Chan PS Maddox TM Oetgen WJ Heidenreich PA Borden WB Spertus JA Petersen LA Ballantyne CM Virani SS 2017中华高血压杂志2017,25,6:2
8Serum p24 antigen level as an intermediate end point in clinical trials of zidovudine in people infected with human immunodeficiency virus type 1显示文摘DeGruttola V Beckett LA Coombs RW 1994J Infect Dis1994,169,4:2
9脊髓损伤后残存自主神经功能载录国际标准显示文摘近年来,脊髓损伤神经学分类园际标准(International Stand- ards for the Neurological Classification of Spinal Cord Injury, ISNCSCI)被用来记载脊髓损伤后运动和感觉功能的损害,目前该标准已是第六版。1992年第一份国际认可的标准出版时,曾进行了较大的修订,修订内容包括完全性损伤与不完全性损伤的定义,MS Alexander AB Jackson W Donovan DE Graves SL Elliott A Krassioukov AW Sheel I Estoresl B Green A Gousse NL Braekett D Cardenas M Kennelly A-K Karlason F Biering-Sorensen K Krogh T Linsenmeyer R Marino J Ditunno CJ Mathias I Perkash G Creasey G Schilero J Wecht B Schurch V Dietz J Sonksen S Stiens D Bodner LA Wuermser J-J Wyndaele 周谋望 刘楠 S Charlifue 2010中华物理医学与康复杂志2010,32,4:2
10Competition 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
11Notch signaling in development and cancer显示文摘Bolos V Grego-Bessa J de la Pompa JL 2007Endocr Rev2007,28,3:1
12Unusually high selectivity to C2+ alcohols on bimetallic CoFe catalysts during CO hydrogenation显示文摘De la PENA OSHEA V A MENENDEZ N N TORNERO J D FIERRO J L G 2003Catal Lett2003,88,34:1
13Aluminum tolerance in transgenic plant by alteration off citrate synthesis显示文摘de la Fuentel JM Ramirez-Rodriguez V Cabrera-Ponee JL 1997Science1997,276,:1
14Expression of MHC class Ⅱ molecules in different cellular and functional compartments is controlled by differential usage of multiple promoters of the transactivator CIITA显示文摘Muhlethaler-Mottet A Otten LA Steimle V 1997EMBO J1997,16,:1
15Proprmlolol Ibr severe infantile he- nmngiomas : Follow - up retport 显示文摘Sims V de la Roque ED Berge J 2009Pediturics2009,124,3:1
16Effect of β-casomorphins and analogs on insulin release in dogs显示文摘SCHUSDZIARRA V SCHICK A D de la FUENTE A 1983Endocrinology1983,112,3:1
17Mild cognitive impairment:Can FDG-PET predict who is to rapidly convert to Alzheimer's disease显示文摘Chételat G Desgranges B de la Sayette V 0,,8:1
18Comparative study of the spectroscopic properties of Yb3+/Er3+ codoped tellurite glasses modified with R2O(R = Li,Na and K)显示文摘DESIRENA H De la ROSA E ROMERO V H 0,,02:1
19Fine-tuning of the piping model through small-scale,medium-scale and ijkdijk experiments 显示文摘SELLMEIJER J B LOPEZ de LA CRUZ J van BEEK V M KNOEFF J G 2011European Journal of Environmental and Civil Engineering2011,15,8:1
20The anti-emetic efficacy of maropitant(Cerenia)in the treatment of ongoing emesis caused by a wide range of underlying clinical aetiologies in canine patients in Europe显示文摘de la Puente-Redondo V A Siedek E M Benchaoui H A 2007J Small Anim Pract2007,48,2:1
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