Dietary total antioxidant capacity is associated with leukocyte telomere length in a children and adolescent population Academic Article uri icon

abstract

  • Oxidative stress and inflammation seem to be potential underlying mechanisms for telomere attrition. A lack of specific antioxidants is believed to increase free radical damage and a greater risk for telomere shortening. Our aim was to evaluate the relationship between diet and leukocyte telomere length in a cross-sectional study of children and adolescents. We hypothesized that dietary total antioxidant capacity would be positively associated with telomere length.Telomere length was measured by quantitative real-time polymerase chain reaction in 287 participants (55% males, 6-18 years), who were randomly selected from the GENOI study.A positive correlation between dietary total antioxidant capacity and telomere length (r = 0.157, p = 0.007) was found after adjustment for age and energy intake. However, higher white bread consumption was associated with shorter telomeres (β = -0.204, p = 0.002) in fully-adjusted models. Interestingly, those individuals who had simultaneously higher dietary total antioxidant capacity and lower white bread consumption significantly presented the longest telomeres. Moreover, the multivariable-adjusted odds ratio for very short telomeres was 0.30 for dietary total antioxidant capacity (p = 0.023) and 1.37 for white bread (p = 0.025).It was concluded that longer telomeres were associated with higher dietary total antioxidant capacity and lower white bread consumption in Spanish children and adolescents. These findings might open a new line of investigation about the potential role of an antioxidant diet in maintaining telomere length.

authors

  • García-Calzón, S
  • Moleres, A
  • Martínez-González, MA
  • Martínez, JA
  • Zalba, G
  • Marti, A
  • Ochoa, MC
  • Chueca, M
  • Oyarzabal, M
  • Patiño, A
  • Azcona-Sanjulián, MC
  • Pelach, R
  • Moreno-Aliaga, MJ

publication date

  • 2015

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