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Träfflista för sökning "WFRF:(Sharp Stephen) srt2:(2007-2009)"

Sökning: WFRF:(Sharp Stephen) > (2007-2009)

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  • Ekelund, Ulf, et al. (författare)
  • Increase in physical activity energy expenditure is associated with reduced metabolic risk independent of change in fatness and fitness
  • 2007
  • Ingår i: Diabetes Care. - Alexandria, Va. : American Diabetes Association. - 0149-5992 .- 1935-5548. ; 30:8, s. 2101-2106
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: We sought to examine whether change in physical activity energy expenditure (PAEE) is associated with change in metabolic risk factors and whether this association is independent of change in fat mass and aerobic fitness. Research design and methods: In a population-based sample of 176 men and 217 women followed prospectively for 5.6 years, we measured PAEE by individually calibrated heart rate monitoring, aerobic fitness, total body fat (fat mass), and metabolic risk factors (blood pressure, fasting triglycerides, HDL cholesterol, insulin, and 2-h glucose) at baseline and follow-up. Results: A 100 J · kg fat-free mass (FFM)−1 · min−1 increase in PAEE from baseline to follow-up reduced triglycerides by 3.5% (95% CI 0.03–5.7) in men and 3.2% (0.02–5.4) in women, fasting insulin by 5.3% (1.0–7.5) in men and women, and 2-h glucose by 3.2% (0.3–5.3) in men and 3.1% (0.3–5.2) in women, after adjustment for sex, age, smoking status, aerobic fitness, baseline phenotype, and change in fat mass. In general, the magnitudes of association for change in fat mass with metabolic risk factors were two to three times stronger than for PAEE. Conclusions: Increasing levels of physical activity may protect against metabolic disease even in the absence of improved aerobic fitness and reduced body fatness. Therefore, the combination of increasing levels of physical activity and avoidance of gain in fat mass is likely to be the most successful approach for preventing cardiovascular and metabolic disease.
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3.
  • Prokopenko, Inga, et al. (författare)
  • Variants in MTNR1B influence fasting glucose levels
  • 2009
  • Ingår i: Nature Genetics. - : Springer Science and Business Media LLC. - 1546-1718 .- 1061-4036. ; 41:1, s. 77-81
  • Tidskriftsartikel (refereegranskat)abstract
    • To identify previously unknown genetic loci associated with fasting glucose concentrations, we examined the leading association signals in ten genome-wide association scans involving a total of 36,610 individuals of European descent. Variants in the gene encoding melatonin receptor 1B (MTNR1B) were consistently associated with fasting glucose across all ten studies. The strongest signal was observed at rs10830963, where each G allele (frequency 0.30 in HapMap CEU) was associated with an increase of 0.07 (95% CI = 0.06-0.08) mmol/l in fasting glucose levels (P = 3.2 x 10(-50)) and reduced beta-cell function as measured by homeostasis model assessment (HOMA-B, P = 1.1 x 10(-15)). The same allele was associated with an increased risk of type 2 diabetes (odds ratio = 1.09 (1.05-1.12), per G allele P = 3.3 x 10(-7)) in a meta-analysis of 13 case-control studies totaling 18,236 cases and 64,453 controls. Our analyses also confirm previous associations of fasting glucose with variants at the G6PC2 (rs560887, P = 1.1 x 10(-57)) and GCK (rs4607517, P = 1.0 x 10(-25)) loci.
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