title: Determinants of plasma retinol, beta-carotene, and alpha-tocopherol during adolescence.
abstract: The relationships of plasma retinol, retinol-binding protein (RBP), beta-carotene, and alpha-tocopherol with their potential determinants, plasma cholesterol and triglyceride, body fat, dietary intake, stages of pubertal development, and drugs, were examined in a French sample of 263 boys and 246 girls aged 10-15 y. By use of multiple-regression analysis, plasma retinol concentration was positively related to plasma cholesterol and triglyceride, sexual-maturation index, body fat, and being male. For plasma RBP the same predictors were identified. Plasma beta-carotene was positively related to plasma cholesterol and beta-carotene nutrient density and negatively related to body fat and plasma triglyceride. Three predictors of plasma alpha-tocopherol were identified: plasma cholesterol and vitamin E nutrient density, which were positively related to its concentration, and sexual-maturation index, which was negatively related. These results confirm that physiological developmental age should be considered in epidemiologic studies of plasma fat-soluble vitamins in adolescents.
authors.affiliation: Centre de Médecine Préventive, Vandoeuvre-les-Nancy, France.
authors.forename: B
authors.initials: B
authors.lastname: Herbeth
authors.forename: Y
authors.initials: Y
authors.lastname: Spyckerelle
authors.forename: J P
authors.initials: JP
authors.lastname: Deschamps
mesh_terms: D000273:Adipose Tissue / Q000033:anatomy & histology; D000293:Adolescent / Q000502:physiology*; D001823:Body Composition; D002338:Carotenoids / Q000097:blood*; D002648:Child; D004032:Diet; D005260:Female; D006801:Humans; D008055:Lipids / Q000097:blood; D008297:Male; D012044:Regression Analysis; D012741:Sexual Maturation; D014801:Vitamin A / Q000097:blood*; D014810:Vitamin E / Q000097:blood*; D019207:beta Carotene
chemical_list: D008055:Lipids; D019207:beta Carotene; D014801:Vitamin A; D014810:Vitamin E; D002338:Carotenoids