SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Hamsten Anders) "

Sökning: WFRF:(Hamsten Anders)

  • Resultat 1-10 av 68
  • [1]234567Nästa
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Peden, John F., et al. (författare)
  • A genome-wide association study in Europeans and South Asians identifies five new loci for coronary artery disease
  • 2011
  • Ingår i: Nature genetics. - 1546-1718. ; 43:4, s. 339-U89
  • Tidskriftsartikel (refereegranskat)abstract
    • Genome-wide association studies have identified 11 common variants convincingly associated with coronary artery disease (CAD)(1-7), a modest number considering the apparent heritability of CAD(8). All of these variants have been discovered in European populations. We report a meta-analysis of four large genome-wide association studies of CAD, with similar to 575,000 genotyped SNPs in a discovery dataset comprising 15,420 individuals with CAD (cases) (8,424 Europeans and 6,996 South Asians) and 15,062 controls. There was little evidence for ancestry-specific associations, supporting the use of combined analyses. Replication in an independent sample of 21,408 cases and 19,185 controls identified five loci newly associated with CAD (P < 5 x 10(-8) in the combined discovery and replication analysis): LIPA on 10q23, PDGFD on 11q22, ADAMTS7-MORF4L1 on 15q25, a gene rich locus on 7q22 and KIAA1462 on 10p11. The CAD-associated SNP in the PDGFD locus showed tissue-specific cis expression quantitative trait locus effects. These findings implicate new pathways for CAD susceptibility.
  •  
2.
  • Sandling, Johanna K., et al. (författare)
  • A candidate gene study of the type I interferon pathway implicates IKBKE and IL8 as risk loci for SLE
  • 2011
  • Ingår i: European Journal of Human Genetics. - 1018-4813. ; 19:4, s. 479-484
  • Tidskriftsartikel (refereegranskat)abstract
    • Systemic Lupus Erythematosus (SLE) is a systemic autoimmune disease in which the type I interferon pathway has a crucial role. We have previously shown that three genes in this pathway, IRF5, TYK2 and STAT4, are strongly associated with risk for SLE. Here, we investigated 78 genes involved in the type I interferon pathway to identify additional SLE susceptibility loci. First, we genotyped 896 single-nucleotide polymorphisms in these 78 genes and 14 other candidate genes in 482 Swedish SLE patients and 536 controls. Genes with P<0.01 in the initial screen were then followed up in 344 additional Swedish patients and 1299 controls. SNPs in the IKBKE, TANK, STAT1, IL8 and TRAF6 genes gave nominal signals of association with SLE in this extended Swedish cohort. To replicate these findings we extracted data from a genomewide association study on SLE performed in a US cohort. Combined analysis of the Swedish and US data, comprising a total of 2136 cases and 9694 controls, implicates IKBKE and IL8 as SLE susceptibility loci (P(meta)=0.00010 and P(meta)=0.00040, respectively). STAT1 was also associated with SLE in this cohort (P(meta)=3.3 × 10(-5)), but this association signal appears to be dependent of that previously reported for the neighbouring STAT4 gene. Our study suggests additional genes from the type I interferon system in SLE, and highlights genes in this pathway for further functional analysis.
  •  
3.
  • Folkersen, Lasse, et al. (författare)
  • Association of genetic risk variants with expression of proximal genes identifies novel susceptibility genes for cardiovascular disease
  • 2010
  • Ingår i: Circulation. Cardiovascular genetics. - 1942-3268. ; 3:4, s. 365-U306
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND:Population-based genome-wide association studies have identified several single nucleotide polymorphisms (SNPs) associated with cardiovascular disease or its risk factors. Genes in close proximity to these risk-SNPs are often thought to be pathogenetically important based on their location alone. However, the actual connections between SNPs and disease mechanisms remain largely unknown.METHODS AND RESULTS: To identify novel susceptibility genes, we investigated how 166 SNPs previously found to be associated with increased cardiovascular risk and/or predisposing metabolic traits relate to the expression of nearby genes. Gene expression in 577 samples of aorta, liver, mammary artery, and carotid atherosclerotic plaque was measured using expression arrays. For 47 SNPs, the expression levels of proximal genes (located within 200 kb) were affected (P<0.005). More than 20 of these genes had not previously been identified as candidate genes for cardiovascular or related metabolic traits. SNP-associated gene effects were tissue-specific and the tissue specificity was phenotype-dependent.CONCLUSIONS: This study demonstrates several instances of association between risk-SNPs and genes immediately adjacent to them. It also demonstrates instances in which the associated gene is not the immediately proximal and obvious candidate gene for disease. This shows the necessity of careful studies of genetic marker data as a first step toward application of genome-wide association studies findings in a clinical setting.
  •  
4.
  • Folkersen, Lasse, et al. (författare)
  • Unraveling divergent gene expression profiles in bicuspid and tricuspid aortic valve patients with thoracic aortic dilatation: the ASAP study
  • 2011
  • Ingår i: Molecular medicine (Cambridge, Mass.). - 1528-3658. ; 17:11-12, s. 1365-1373
  • Tidskriftsartikel (refereegranskat)abstract
    • Thoracic aortic aneurysm (TAA) is a common complication in patients with a bicuspid aortic valve (BAV), the most frequent congenital heart disorder. For unknown reasons TAA occurs at a younger age, with a higher frequency in BAV patients than in patients with a tricuspid aortic valve (TAV), resulting in an increased risk for aortic dissection and rupture. To investigate the increased TAA incidence in BAV patients, we obtained tissue biopsy samples from nondilated and dilated aortas of 131 BAV and TAV patients. Global gene expression profiles were analyzed from controls and from aortic intima-media and adventitia of patients (in total 345 samples). Of the genes found to be differentially expressed with dilation, only a few (less than4%) were differentially expressed in both BAV and TAV patients. With the use of gene set enrichment analysis, the cell adhesion and extracellular region gene ontology sets were identified as common features of TAA in both BAV and TAV patients. Immune response genes were observed to be particularly overexpressed in the aortic media of dilated TAV samples. The divergent gene expression profiles indicate that there are fundamental differences in TAA etiology in BAV and TAV patients. Immune response activation solely in the aortic media of TAV patients suggests that inflammation is involved in TAA formation in TAV but not in BAV patients. Conversely, genes were identified that were only differentially expressed with dilation in BAV patients. The result has bearing on future clinical studies in which separate analysis of BAV and TAV patients is recommended.
  •  
5.
  • Gertow, Karl, et al. (författare)
  • Identification of the BCAR1-CFDP1-TMEM170A Locus as a Determinant of Carotid Intima-Media Thickness and Coronary Artery Disease Risk
  • 2012
  • Ingår i: Circulation: Cardiovascular Genetics. - American Heart Association. - 1942-325X. ; 5:6, s. 656-665
  • Tidskriftsartikel (refereegranskat)abstract
    • Background-Carotid intima-media thickness (cIMT) is a widely accepted marker of subclinical atherosclerosis. To date, large-scale investigations of genetic determinants of cIMT are sparse. Methods and Results-To identify cIMT-associated genes and genetic variants, a discovery analysis using the Illumina 200K CardioMetabochip was conducted in 3430 subjects with detailed ultrasonographic determinations of cIMT from the IMPROVE (Carotid Intima Media Thickness IMT and IMT-Progression as Predictors of Vascular Events in a High Risk European Population) study. Segment-specific IMT measurements of common carotid, bifurcation, and internal carotid arteries, and composite IMT variables considering the whole carotid tree (IMTmean, IMTmax, and IMTmean-max), were analyzed. A replication stage investigating 42 single-nucleotide polymorphisms for association with common carotid IMT was undertaken in 5 independent European cohorts (total n=11 590). A locus on chromosome 16 (lead single-nucleotide polymorphism rs4888378, intronic in CFDP1) was associated with cIMT at significance levels passing multiple testing correction at both stages (array-wide significant discovery P=6.75x10(-7) for IMTmax; replication P=7.24x10(-6) for common cIMT; adjustments for sex, age, and population substructure where applicable; minor allele frequency 0.43 and 0.41, respectively). The protective minor allele was associated with lower carotid plaque score in a replication cohort (P=0.04, n=2120) and lower coronary artery disease risk in 2 case-control studies of subjects with European ancestry (odds ratio 95% confidence interval 0.83 0.77-0.90, P=6.53x10(-6), n=13 591; and 0.95 0.92-0.98, P=1.83x10(-4), n= 82 297, respectively). Queries of human biobank data sets revealed associations of rs4888378 with nearby gene expression in vascular tissues (n=126-138). Conclusions-This study identified rs4888378 in the BCAR1-CFDP1-TMEM170A locus as a novel genetic determinant of cIMT and coronary artery disease risk in individuals of European descent. (Circ Cardiovasc Genet. 2012;5:656-665.)
  •  
6.
  •  
7.
  •  
8.
  • Di Gennaro, Antonio, et al. (författare)
  • Increased expression of leukotriene C4 synthase and predominant formation of cysteinyl-leukotrienes in human abdominal aortic aneurysm
  • 2010
  • Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - 1091-6490. ; 107:49, s. 21093-21097
  • Tidskriftsartikel (refereegranskat)abstract
    • Leukotrienes (LTs) are arachidonic acid-derived lipid mediators involved in the pathogenesis and progression of diverse inflammatory disorders. The cysteinyl-leukotrienes LTC4, LTD4, and LTE4 are important mediators of asthma, and LTB4 has recently been implicated in atherosclerosis. Here we report that mRNA levels for the three key enzymes/proteins in the biosynthesis of cysteinyl-leukotrienes, 5-lipoxygenase (5-LO), 5-LO-activating protein (FLAP), and LTC4 synthase (LTC4S), are significantly increased in the wall of human abdominal aortic aneurysms (AAAs). In contrast, mRNA levels of LTA(4) hydrolase, the enzyme responsible for the biosynthesis of LTB4, are not increased. Immunohistochemical staining of AAA wall revealed focal expression of 5-LO, FLAP, and LTC4S proteins in the media and adventitia, localized in areas rich in inflammatory cells, including macrophages, neutrophils, and mast cells. Human AAA wall tissue converts arachidonic acid and the unstable epoxide LTA(4) into significant amounts of cysteinyl-leukotrienes and to a lesser extent LTB4. Furthermore, challenge of AAA wall tissue with exogenous LTD4 increases the release of matrix metalloproteinase (MMP) 2 and 9, and selective inhibition of the CysLT1 receptor by montelukast blocks this effect. The increased expression of LTC4S, together with the predominant formation of cysteinyl-leukotrienes and effects on MMPs production, suggests a mechanism by which LTs may promote matrix degradation in the AAA wall and identify the components of the cysteinyl-leukotriene pathway as potential targets for prevention and treatment of AAA.
  •  
9.
  • Huang, Jie, et al. (författare)
  • Genome-wide association study for circulating levels of PAI-1 provides novel insights into its regulation
  • 2012
  • Ingår i: Blood. - 1528-0020. ; 120:24, s. 4873-4881
  • Tidskriftsartikel (refereegranskat)abstract
    • We conducted a genome-wide association study to identify novel associations between genetic variants and circulating plasminogen activator inhibitor-1 (PAI-1) concentration, and examined functional implications of variants and genes that were discovered. A discovery meta-analysis was performed in 19 599 subjects, followed by replication analysis of genome-wide significant (P < 5 × 10(-8)) single nucleotide polymorphisms (SNPs) in 10 796 independent samples. We further examined associations with type 2 diabetes and coronary artery disease, assessed the functional significance of the SNPs for gene expression in human tissues, and conducted RNA-silencing experiments for one novel association. We confirmed the association of the 4G/5G proxy SNP rs2227631 in the promoter region of SERPINE1 (7q22.1) and discovered genome-wide significant associations at 3 additional loci: chromosome 7q22.1 close to SERPINE1 (rs6976053, discovery P = 3.4 × 10(-10)); chromosome 11p15.2 within ARNTL (rs6486122, discovery P = 3.0 × 10(-8)); and chromosome 3p25.2 within PPARG (rs11128603, discovery P = 2.9 × 10(-8)). Replication was achieved for the 7q22.1 and 11p15.2 loci. There was nominal association with type 2 diabetes and coronary artery disease at ARNTL (P < .05). Functional studies identified MUC3 as a candidate gene for the second association signal on 7q22.1. In summary, SNPs in SERPINE1 and ARNTL and an SNP associated with the expression of MUC3 were robustly associated with circulating levels of PAI-1.
  •  
10.
  • Hägg, Sara, et al. (författare)
  • Molecular Phenotypes of Coronary Artery Disease : The Stockholm Atherosclerosis Gene Expression (STAGE) Study
  • ????
  • Annan publikation (övrigt vetenskapligt)abstract
    • BACKGROUNDBy offering a comprehensive view of the molecular underpinnings of pathology, high-dimensional data have the potential to revolutionize the diagnosis and management of complex disorders such as coronary artery disease (CAD). To identify molecular phenotypes of CAD, we performed multi organ gene expression profiling of subjects enrolled in the Stockholm Atherosclerosis Gene Expression (STAGE) study.METHODSAtherosclerotic and unaffected arterial wall, liver, skeletal muscle, and mediastinal fat biopsies were obtained during coronary artery bypass grafting from 114 well-characterized CAD patients. RNA samples were isolated, and 278 transcription profiles were obtained using Affymetrix HG-U133_Plus_2 GeneChips.RESULTSThe most prominent molecular phenotype of the CAD patients was represented by 733 genes in mediastinal fat, which were involved in extracellular matrix organization, response to stress and regulation of programmed cell death. Other aspects of this phenotype were shared with liver (e.g., oxidoreductase activity), skeletal muscle (insulin-like growth factor binding), and atherosclerotic arterial wall (cell motility and adhesion, fatty acid metabolism). In addition, the activity of 400 genes exclusively in mediastinal fat was associated with the extent of coronary stenosis and atherosclerosis. Immune-cell activation in mediastinal fat defined CAD patients with poor blood glucose control and prolonged hospitalization.CONCLUSIONSThe molecular phenotype of mediastinal fat appears to be central in CAD and should be useful for early identification of CAD risk.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-10 av 68
  • [1]234567Nästa
Åtkomst
fritt online (8)
Typ av publikation
tidskriftsartikel (65)
annan publikation (3)
Typ av innehåll
refereegranskat (64)
övrigt vetenskapligt (4)
Författare/redaktör
Hamsten, Anders (60)
Eriksson, Per, (19)
Hofman, Albert (16)
Wareham, Nicholas J (15)
Boehnke, Michael (15)
De Faire, Ulf (15)
visa fler...
Syvänen, Ann-Christi ... (14)
Salomaa, Veikko (14)
Strawbridge, Rona J. (14)
Mohlke, Karen L (13)
Jackson, Anne U. (13)
Luan, Jian'an (13)
Collins, Francis S. (13)
Samani, Nilesh J. (13)
Watkins, Hugh (13)
Wilson, James F. (13)
Uitterlinden, Andre ... (13)
Humphries, Steve E. (13)
Deloukas, Panos (12)
Laakso, Markku (12)
Ridker, Paul M (12)
Ingelsson, Erik (12)
Chasman, Daniel I (12)
Loos, Ruth J. F. (12)
Abecasis, Goncalo R. (12)
Melander, Olle (11)
Johnson, Toby (11)
Hayward, Caroline (11)
Campbell, Harry (11)
Peden, John F. (11)
Farrall, Martin (11)
McArdle, Wendy L. (11)
Tuomilehto, Jaakko (11)
Gieger, Christian (11)
Harris, Tamara B. (11)
Rudan, Igor (11)
McCarthy, Mark I. (11)
Jarvelin, Marjo-Riit ... (11)
Goel, Anuj (11)
Silveira, Angela (11)
Khaw, Kay-Tee (10)
Strachan, David P. (10)
Clarke, Robert, (10)
Kuusisto, Johanna (10)
Langenberg, Claudia (10)
Thorleifsson, Gudmar (10)
Mangino, Massimo (10)
Prokopenko, Inga (10)
Zhao, Jing Hua (10)
Elliott, Paul (10)
visa färre...
Lärosäte
Karolinska Institutet (54)
Uppsala universitet (37)
Lunds universitet (31)
Göteborgs universitet (14)
Umeå universitet (10)
Linköpings universitet (8)
visa fler...
Kungliga Tekniska Högskolan (5)
Högskolan i Borås (2)
Högskolan Dalarna (1)
Sveriges Lantbruksuniversitet (1)
visa färre...
Språk
Engelska (64)
Ämne (HSV)
Medicin och hälsovetenskap (14)

År

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy