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Träfflista för sökning "WFRF:(Armstrong N.) srt2:(2015-2019)"

Search: WFRF:(Armstrong N.) > (2015-2019)

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  • Davies, G., et al. (author)
  • Study of 300,486 individuals identifies 148 independent genetic loci influencing general cognitive function
  • 2018
  • In: Nature Communications. - : Nature Publishing Group. - 2041-1723. ; 9:1
  • Journal article (peer-reviewed)abstract
    • General cognitive function is a prominent and relatively stable human trait that is associated with many important life outcomes. We combine cognitive and genetic data from the CHARGE and COGENT consortia, and UK Biobank (total N = 300,486; age 16-102) and find 148 genome-wide significant independent loci (P < 5 × 10-8) associated with general cognitive function. Within the novel genetic loci are variants associated with neurodegenerative and neurodevelopmental disorders, physical and psychiatric illnesses, and brain structure. Gene-based analyses find 709 genes associated with general cognitive function. Expression levels across the cortex are associated with general cognitive function. Using polygenic scores, up to 4.3% of variance in general cognitive function is predicted in independent samples. We detect significant genetic overlap between general cognitive function, reaction time, and many health variables including eyesight, hypertension, and longevity. In conclusion we identify novel genetic loci and pathways contributing to the heritability of general cognitive function.
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  • Karasik, D., et al. (author)
  • Disentangling the genetics of lean mass
  • 2019
  • In: American Journal of Clinical Nutrition. - : Elsevier BV. - 0002-9165 .- 1938-3207. ; 109:2, s. 276-287
  • Journal article (peer-reviewed)abstract
    • Background: Lean body mass (LM) plays an important role in mobility and metabolic function. We previously identified five loci associated with LM adjusted for fat mass in kilograms. Such an adjustment may reduce the power to identify genetic signals having an association with both lean mass and fat mass. Objectives: To determine the impact of different fat mass adjustments on genetic architecture of LM and identify additional LM loci. Methods: We performed genome-wide association analyses for whole-body LM (20 cohorts of European ancestry with n = 38,292) measured using dual-energy X-ray absorptiometry) or bioelectrical impedance analysis, adjusted for sex, age, age(2), and height with or without fat mass adjustments (Model 1 no fat adjustment; Model 2 adjustment for fat mass as a percentage of body mass; Model 3 adjustment for fat mass in kilograms). Results: Seven single-nucleotide polymorphisms (SNPs) in separate loci, including one novel LM locus (TNRC6B), were successfully replicated in an additional 47,227 individuals from 29 cohorts. Based on the strengths of the associations in Model 1 vs Model 3, we divided the LM loci into those with an effect on both lean mass and fat mass in the same direction and refer to those as "sumo wrestler" loci (FTO and MC4R). In contrast, loci with an impact specifically on LMwere termed "body builder" loci (VCAN and ADAMTSL3). Using existing available genome-wide association study databases, LM increasing alleles of SNPs in sumo wrestler loci were associated with an adverse metabolic profile, whereas LM increasing alleles of SNPs in "body builder" loci were associated with metabolic protection. Conclusions: In conclusion, we identified one novel LM locus (TNRC6B). Our results suggest that a genetically determined increase in lean mass might exert either harmful or protective effects on metabolic traits, depending on its relation to fat mass.
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  • Result 1-10 of 84
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journal article (82)
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Gudnason, V (13)
Olson, Sara H. (13)
Armstrong, Georgina ... (13)
Hofman, A (11)
Johansen, Christoffe ... (11)
Wrensch, Margaret R. (11)
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Il'yasova, Dora (11)
Claus, Elizabeth B. (11)
Amin, N (10)
Martin, NG (10)
Barnholtz-Sloan, Jil ... (10)
Houlston, Richard S. (10)
Schmidt, H. (9)
van Duijn, CM (9)
Luciano, M (9)
Teumer, A (9)
Brodaty, H (9)
Montgomery, GW (9)
Schmidt, R (9)
Volzke, H (9)
Campbell, H (9)
Schildkraut, Joellen (9)
Boomsma, DI (8)
Ford, I. (8)
Lind, Lars (8)
Trompet, S (8)
Seshadri, S (8)
Ames, D (8)
Ferrucci, L (8)
Thalamuthu, A (8)
Uitterlinden, AG (8)
van Duijn, Cornelia ... (8)
Rotter, Jerome I. (8)
Hottenga, JJ (7)
Kim, S. (7)
Smith, C (7)
Bis, JC (7)
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Smith, AV (7)
Espeseth, T (7)
Homuth, G (7)
Psaty, BM (7)
Rotter, JI (7)
Deary, IJ (7)
Lahti, J (7)
Boerwinkle, E (7)
Palotie, A (7)
Mahajan, Anubha (7)
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