Impact of gender, apolipoprotein E phenotypes, and diet on serum lipids and lipoproteins in infancy

J Pediatr. 1997 Dec;131(6):825-32. doi: 10.1016/s0022-3476(97)70028-3.

Abstract

Objective: To determine the influence of gender, apolipoprotein E phenotypes, and diet on the interindividual variances in serum lipid and lipoprotein concentrations in children at 7 and 13 months of age.

Study design: Prospective randomized intervention trial. Half of 1062 families with 7-month-old infants received dietary and lifestyle counseling aimed at partially replacing saturated fat with mono- and polyunsaturated fat and reducing exposure to other known atherosclerosis risk factors. This study comprises all trial children who at 8 months of age received, in addition to solid food, only breast milk or only formula (N = 553). Forward stepwise multiple regression analysis was used in the evaluation of the contributions of gender, apolipoprotein E phenotype, and diet.

Results: Apolipoprotein E phenotypes, gender, and milk type provided independent information concerning serum lipid values at 7 and 13 months of age (three-way ANOVA, p < 0.01). At 7 months, milk type was the most significant predictor of total, non-high-density lipoprotein and high-density lipoprotein cholesterol and apolipoprotein B and A1 concentrations. At 13 months when the effects of gender (5%) and apolipoprotein E type (5%) were excluded, diet predicted only 2% of the variance in serum cholesterol concentration. The apolipoprotein E type predicted 8% of the variance in non-high-density lipoprotein cholesterol concentration and 7% of the variance in apolipoprotein B concentration (p < 0.001), together explaining only 3% of the variance in serum high-density lipoprotein cholesterol and apolipoprotein A1 concentrations.

Conclusions: At 7 months of age diet is an important predictor of serum lipid and lipoprotein concentrations. At the age of 13 months the apolipoprotein E phenotype significantly predicts the concentrations of serum non-high-density lipoprotein cholesterol and apolipoprotein B. However, at both ages apolipoprotein E phenotype, gender, and diet together explain only from 1.4% to 15.5% of the variance in serum lipids and apolipoproteins, suggesting that other, presumably genetic, factors are major determinants.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Analysis of Variance
  • Apolipoproteins E / blood
  • Apolipoproteins E / genetics*
  • Arteriosclerosis / prevention & control*
  • Breast Feeding
  • Cholesterol / blood
  • Dietary Fats
  • Female
  • Humans
  • Infant
  • Lipids / blood*
  • Lipoproteins / blood
  • Male
  • Phenotype
  • Prospective Studies
  • Reference Values
  • Risk Factors
  • Sex Factors

Substances

  • Apolipoproteins E
  • Dietary Fats
  • Lipids
  • Lipoproteins
  • Cholesterol