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  • Franks, PaulLund University,Lunds universitet,Umeå universitet,Medicin,Genetisk och molekylär epidemiologi,Forskargrupper vid Lunds universitet,Genetic and Molecular Epidemiology,Lund University Research Groups (author)

Common variation at PPARGC1A/B and change in body composition and metabolic traits following preventive interventions : the Diabetes Prevention Program

  • Article/chapterEnglish2014

Publisher, publication year, extent ...

  • 2013-12-07
  • Springer,2014
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:umu-87396
  • https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-87396URI
  • https://doi.org/10.1007/s00125-013-3133-4DOI
  • https://lup.lub.lu.se/record/4225030URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • PPARGC1A and PPARGCB encode transcriptional coactivators that regulate numerous metabolic processes. We tested associations and treatment (i.e. metformin or lifestyle modification) interactions with metabolic traits in the Diabetes Prevention Program, a randomised controlled trial in persons at high risk of type 2 diabetes. We used Tagger software to select 75 PPARGCA1 and 94 PPARGC1B tag single-nucleotide polymorphisms (SNPs) for analysis. These SNPs were tested for associations with relevant cardiometabolic quantitative traits using generalised linear models. Aggregate genetic effects were tested using the sequence kernel association test. In aggregate, PPARGC1A variation was strongly associated with baseline triacylglycerol concentrations (p = 2.9 x 10(-30)), BMI (p = 2.0 x 10(-5)) and visceral adiposity (p = 1.9 x 10(-4)), as well as with changes in triacylglycerol concentrations (p = 1.7 x 10(-5)) and BMI (p = 9.9 x 10(-5)) from baseline to 1 year. PPARGC1B variation was only associated with baseline subcutaneous adiposity (p = 0.01). In individual SNP analyses, Gly482Ser (rs8192678, PPARGC1A) was associated with accumulation of subcutaneous adiposity and worsening insulin resistance at 1 year (both p < 0.05), while rs2970852 (PPARGC1A) modified the effects of metformin on triacylglycerol levels (p (interaction) = 0.04). These findings provide several novel and other confirmatory insights into the role of PPARGC1A variation with respect to diabetes-related metabolic traits. Trial registration ClinicalTrials.gov NCT00004992.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Christophi, Costas A. (author)
  • Jablonski, Kathleen A. (author)
  • Billings, Liana K. (author)
  • Delahanty, Linda M. (author)
  • Horton, Edward S. (author)
  • Knowler, William C. (author)
  • Florez, Jose C. (author)
  • Umeå universitetMedicin (creator_code:org_t)

Related titles

  • In:Diabetologia: Springer57:3, s. 485-4900012-186X1432-0428

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