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Träfflista för sökning "WFRF:(Bang N) srt2:(2005-2009)"

Sökning: WFRF:(Bang N) > (2005-2009)

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2.
  • Gylvin, T., et al. (författare)
  • Functional SOCS1 polymorphisms are associated with variation in obesity in whites
  • 2009
  • Ingår i: Diabetes, Obesity and Metabolism. - : Wiley. - 1462-8902 .- 1463-1326. ; 11:3, s. 196-203
  • Tidskriftsartikel (refereegranskat)abstract
    • The suppressor of cytokine signalling 1 (SOCS1) is a natural inhibitor of cytokine and insulin signalling pathways and may also play a role in obesity. In addition, SOCS1 is considered a candidate gene in the pathogenesis of both type 1 diabetes (T1D) and type 2 diabetes (T2D). The objective was to perform mutation analysis of SOCS1 and to test the identified variations for association to T2D-related quantitative traits, T2D or T1D. Mutation scanning was performed by direct sequencing in 27 white Danish subjects. Genotyping was carried out by TaqMan allelic discrimination. A total of more than 8100 individuals were genotyped. Eight variations were identified in the 5' untranslated region (UTR) region. Two of these had allele frequencies below 1% and were not further examined. The six other variants were analysed in groups of T1D families (n = 1461 subjects) and T2D patients (n = 1430), glucose tolerant first-degree relatives of T2D patients (n = 212) and normal glucose tolerant (NGT) subjects. The rs33977706 polymorphism (-820G > T) was associated with a lower body mass index (BMI) (p = 0.004). In a second study (n = 4625 NGT subjects), significant associations of both the rs33977706 and the rs243330 (-1656G > A) variants to obesity were found (p = 0.047 and p = 0.015) respectively. The rs33977706 affected both binding of a nuclear protein to and the transcriptional activity of the SOCS1 promoter, indicating a relationship between this polymorphism and gene regulation. This study demonstrates that functional variations in the SOCS1 promoter may associate with alterations in BMI in the general white population.
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3.
  • Lu, R, et al. (författare)
  • Genetic associations of LYN with systemic lupus erythematosus
  • 2009
  • Ingår i: Genes and Immunity. - : Springer Science and Business Media LLC. - 1466-4879 .- 1476-5470. ; 10:5, s. 397-403
  • Tidskriftsartikel (refereegranskat)abstract
    • We targeted LYN, a src-tyosine kinase involved in B-cell activation, in case-control association studies using populations of European-American, African-American and Korean subjects. Our combined European-derived population, consisting of 2463 independent cases and 3131 unrelated controls, shows significant association with rs6983130 in a female-only analysis with 2254 cases and 2228 controls (P=1.1 x 10(-4), odds ratio (OR)=0.81 (95% confidence interval: 0.73-0.90)). This single nucleotide polymorphism (SNP) is located in the 5' untranslated region within the first intron near the transcription initiation site of LYN. In addition, SNPs upstream of the first exon also show weak and sporadic association in subsets of the total European-American population. Multivariate logistic regression analysis implicates rs6983130 as a protective factor for systemic lupus erythematosus (SLE) susceptibility when anti-dsDNA, anti-chromatin, anti-52 kDa Ro or anti-Sm autoantibody status were used as covariates. Subset analysis of the European-American female cases by American College of Rheumatology classification criteria shows a reduction in the risk of hematological disorder with rs6983130 compared with cases without hematological disorders (P=1.5 x 10(-3), OR=0.75 (95% CI: 0.62-0.89)). None of the 90 SNPs tested show significant association with SLE in the African American or Korean populations. These results support an association of LYN with European-derived individuals with SLE, especially within autoantibody or clinical subsets.
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4.
  • Moguchaya, T. N., et al. (författare)
  • Data fitting by wavelet shrinkage using GM-waves
  • 2005
  • Ingår i: Mathematical Methods for Curves and Surfaces. - Brentwood, Tenn. : Nashboro Press, Ltd.. - 097284824X ; , s. 263-274
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
    • We present a new wavelet software system, GM-Waves, and illustrate some of its features in the context of the study of methods for wavelet shrinkage and their application to curve and surface fitting, smoothing and denoising by wavelets.
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5.
  • Sällebrant, T., et al. (författare)
  • Managing risk with intellectual capital statements
  • 2007
  • Ingår i: Management Decision. - : Emerald. - 0025-1747 .- 1758-6070. ; 45:9, s. 1470-1483
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose - The purpose of this paper is to present an empirical research study which took a novel examination of the relationship between risk and transparency with regards to a company's intellectual capital assets. The objective of this study is to evaluate how the systematic and idiosyncratic risk of publicly traded companies correlates with the degree of available information regarding their intellectual capital statements. Design/methodology/approach - Intellectual capital is measured within the framework of a rating system that includes 44 parameters within eight focus areas. These data were collected from key informants at eight publicly traded IT companies in Sweden. Findings - The results show a negative correlation between idiosyncratic risk and transparency and a positive correlation between market risk and transparency. However, the correlation between risk and transparency may partly be explained by organization size. Research limitations/implications - This study was based on a small set of firms within one country so generalizability is limited. Practical implications - The suggested methodology of intellectual capital measurement has since been used by over 400 organizations across four different continents. Originality/value - This methodology consists of both qualitatively metrics as well as quantitative metrics that are then triangulated together to test various hypotheses.
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