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Sökning: WFRF:(Hamsten Anders) > Annan publikation

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  • Hägg, Sara, et al. (författare)
  • Molecular Phenotypes of Coronary Artery Disease : The Stockholm Atherosclerosis Gene Expression (STAGE) Study
  • Annan publikation (övrigt vetenskapligt/konstnärligt)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.
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  • Skogsberg, Josefin, et al. (författare)
  • Whole-genome expression profiling of human plaques to identify genes relevant for atherosclerosis : the Stockholm Atherosclerosis Gene Expression Study, Stockholm Söder Hospital, Sweden (SöS-STAGE)
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • ObjectiveTo reveal relevant genes for atherosclerosis by whole-genome expression analyses of plaques from patients undergoing carotid endorectomy.Methods and ResultsWhole-genome expression measurements (WGEM) using Affymetrix HG-U133_Plus_2 chip of carotid plaques in patients undergoing carotid endorectomy at Stockholm Söder Hospital, Sweden. Patients were screened for conventional risk factors at a three-month follow-up visit and atherosclerosis burden in the common carotid artery (CCA) was measured by intima-media thickness (IMT). An unsupervised coupled two-way clustering approach identified genderspecific genes and 55 genes associated to degree of IMT in these patients.ConclusionsCoupled two-way clustering of carotid lesion expression profiles from a well-characterized clinical cohort is useful for identification of novel genes that may be relevant for atheroscleroris.
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  • Resultat 1-5 av 5

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