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- Iglesia, Iris, et al.
(författare)
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Foods contributing to vitamin B-6, folate, and vitamin B-12 intakes and biomarkers status in European adolescents : The HELENA study
- 2017
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Ingår i: European Journal of Nutrition. - : SPRINGER HEIDELBERG. - 1436-6207 .- 1436-6215. ; 56:4, s. 1767-1782
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Tidskriftsartikel (refereegranskat)abstract
- To examine the association between food groups consumption and vitamin B-6, folate and B-12 intakes and biomarkers in adolescents. In total 2189 individuals participating in the cross-sectional Healthy Lifestyle in Europe by Nutrition in Adolescence study met the eligibility criteria for analysis of dietary intakes (46 % males) and 632 for biomarker analysis (47 % males). Food intakes were assessed by two non-consecutive 24-h recalls. Biomarkers were measured by chromatography and immunoassay. Food groups which best discriminated participants in the extreme tertiles of the distribution of vitamins were identified by discriminant analyses. Food groups with standardised canonical coefficients higher or equal to 0.3 were selected as valid discriminators of vitamins intake and biomarkers extreme tertiles. Linear mixed model elucidated the association between food groups and vitamins intakes and biomarkers. Vitamin B-6 intakes and biomarkers were best discriminated by meat (males and females), margarine and mixed origin lipids only in males and breakfast cereals (females). Breakfast cereals (males), and fruits, margarine and mixed origin lipids, vegetables excluding potatoes, breakfast cereals, and soups/bouillon (females) determined the most folate intakes and biomarkers. Considering vitamin B-12 intakes and biomarkers, meat, and white and butter milk (males and females), snacks (males), and dairy products (females) best discriminated individual in the extremes of the distribution. Fewer associations were obtained with mixed model for biomarkers than for vitamins intakes with food groups. Whereas B-vitamin intakes were associated with their food sources, biomarkers did with overall food consumption. Low-nutrient-density foods may compromise adolescents' vitamin status.
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- Julian, Cristina, et al.
(författare)
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Dietary sources and sociodemographic and lifestyle factors affecting vitamin D and calcium intakes in European adolescents : the Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) Study
- 2017
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Ingår i: Public Health Nutrition. - : Cambridge University Press. - 1368-9800 .- 1475-2727. ; 20:9, s. 1593-1601
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Tidskriftsartikel (refereegranskat)abstract
- Objective; To investigate dietary sources of Ca and vitamin D (VitD) intakes, and the associated sociodemographic and Lifestyle Factors, among European adolescents. Design: Linear regression mixed models were used to examine sex-specific associations of Ca and Via) intakes with parental education, family affluence (FAS), physical activity and television (TV) watching while controlling for age, Tanner stage, energy intake and diet quality. Setting: The Healthy Lifestyle in Europe by Nutrition in Adolescence (HELENA) Cross-Sectional Study. Subjects: Adolescents aged 12.5-17.5 years In 1804). Results: Milk and cheese were the main sources of Ca (23 and 19% contribution to overall Ca intake, respectively). Fish products were the main VitD source (30 % contribution to overall VitD intake). Ca intake was positively associated with maternal education (beta) =56.41; 95% Cl 1.98, 110.82) and negatively associated with TV viewing in boys (beta=-0.43; 95% CI -0.79, -0.07); however, the significance of these associations disappeared when adjusting for diet quality. In girls, Ca intake was positively associated with mother's (beta=73.08; 95% CI 34.41, 111.74) and father's education (beta =43.29; 95% CI 5.44, 81.14) and FAS (beta=37.45; 95% Cl 2.25, 72.65). This association between Ca intake and mother's education remained significant after further adjustment for diet quality (beta=41.66; 95 % CI 0.94, 82.38). Girls with high-educated mothers had higher Ca intake. Conclusions: Low-educated families with poor diet quality may be targeted when strategizing health promotion programmes to enhance dietary Ca.
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- Staaf, Johan, et al.
(författare)
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Pancreatic Fat Is Associated With Metabolic Syndrome and Visceral Fat but Not Beta-Cell Function or Body Mass Index in Pediatric Obesity
- 2017
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Ingår i: Pancreas. - 0885-3177 .- 1536-4828. ; 46:3, s. 358-365
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: Adolescents with obesity have increased risk of type 2 diabetes and metabolic syndrome (MetS). Pancreatic fat has been related to these conditions; however, little is known about associations in pediatric obesity. The present study was designed to explore these associations further.METHODS: We examined 116 subjects, 90 with obesity. Anthropometry, MetS, blood samples, and oral glucose tolerance tests were assessed using standard techniques. Pancreatic fat fraction (PFF) and other fat depots were quantified using magnetic resonance imaging.RESULTS: The PFF was elevated in subjects with obesity. No association between PFF and body mass index-standard deviation score (BMI-SDS) was found in the obesity subcohort. Pancreatic fat fraction correlated to Insulin Secretion Sensitivity Index-2 and Homeostatic Model Assessment of Insulin Resistance in simple regression; however, when using adjusted regression and correcting for BMI-SDS and other fat compartments, PFF correlated only to visceral adipose tissue and fasting glucose. Highest levels of PFF were found in subjects with obesity and MetS.CONCLUSIONS: In adolescents with obesity, PFF is elevated and associatedto MetS, fasting glucose, and visceral adipose tissue but not to beta-cellfunction, glucose tolerance, or BMI-SDS. This study demonstrates thatconclusions regarding PFF and its associations depend on the body massfeatures of the cohort.
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