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Inflammation profile in overweight/obese adolescents in Europe: an analysis in relation to iron status

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Abstract
BACKGROUND/OBJECTIVES: The objectives of this study were to investigate the relationship between inflammatory parameters (CRP, c-reactive protein; AGP, alpha 1-acid glycoprotein), iron status indicators (SF, serum ferritin; sTfR, soluble transferrin receptor) and body mass index (BMI) z-score, fat-free mass (FFM) and fat mass (FM) in European adolescents. Differences in intake for some nutrients (total iron, haem and non-haem iron, vitamin C, calcium, proteins) were assessed according to BMI categories, and the association of nutrient intakes with BMI z-score, FM and FFM was evaluated. METHODS: A total of 876 adolescents participating in the Healthy Lifestyle in Europe by Nutrition in Adolescence-Cross Sectional Study were included in the study sample. RESULTS: Mean CRP values (standard error; s.e.) were significantly higher in overweight/obese adolescents (1.7 +/- 0.3 and 1.4 +/- 0.3 mg/l in boys and girls, respectively) than in thin/normal-weight adolescents (1.1 +/- 0.2 and 1.0 +/- 0.1 mg/l in boys and girls, respectively) (P < 0.05). For boys, mean SF values (s.e.) were significantly higher in overweight/obese adolescents (46.9 +/- 2.7 mu g/l) than in thin/normal-weight adolescents (35.7 +/- 1.7 mu g/l) (P < 0.001), whereas median sTfR values did not differ among BMI categories for both boys and girls. Multilevel regression analyses showed that BMI z-score and FM were significantly related to CRP and AGP (P < 0.05). Dietary variables did not differ significantly among BMI categories, except for the intake of vegetable proteins, which, for boys, was higher in thin/normal-weight adolescents than in overweight/obese adolescents (P < 0.05). CONCLUSIONS: The adiposity of the European adolescents was sufficient to cause chronic inflammation but not sufficient to impair iron status and cause iron deficiency.
Keywords
ADIPOSE-TISSUE, 3RD NATIONAL-HEALTH, NUTRITION EXAMINATION SURVEY, C-REACTIVE PROTEIN, BODY-MASS INDEX, OBESE CHILDREN, ANTHROPOMETRIC MEASUREMENTS, NORMAL-WEIGHT, DIETARY-INTAKE, NUTRIENT-DENSITY

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MLA
Ferrari, M., et al. “Inflammation Profile in Overweight/Obese Adolescents in Europe: An Analysis in Relation to Iron Status.” EUROPEAN JOURNAL OF CLINICAL NUTRITION, vol. 69, no. 2, 2015, pp. 247–55, doi:10.1038/ejcn.2014.154.
APA
Ferrari, M., Cuenca-García, M., Valtueña, J., Moreno, L., Censi, L., González-Gross, M., … Leclercq, C. (2015). Inflammation profile in overweight/obese adolescents in Europe: an analysis in relation to iron status. EUROPEAN JOURNAL OF CLINICAL NUTRITION, 69(2), 247–255. https://doi.org/10.1038/ejcn.2014.154
Chicago author-date
Ferrari, M, M Cuenca-García, J Valtueña, LA Moreno, L Censi, M González-Gross, O Androutsos, et al. 2015. “Inflammation Profile in Overweight/Obese Adolescents in Europe: An Analysis in Relation to Iron Status.” EUROPEAN JOURNAL OF CLINICAL NUTRITION 69 (2): 247–55. https://doi.org/10.1038/ejcn.2014.154.
Chicago author-date (all authors)
Ferrari, M, M Cuenca-García, J Valtueña, LA Moreno, L Censi, M González-Gross, O Androutsos, CC Gilbert, Inge Huybrechts, J Dallongeville, M Sjöström, D Molnar, Stefaan De Henauw, S Gómez-Martínez, ACF de Moraes, A Kafatos, K Widhalm, and C Leclercq. 2015. “Inflammation Profile in Overweight/Obese Adolescents in Europe: An Analysis in Relation to Iron Status.” EUROPEAN JOURNAL OF CLINICAL NUTRITION 69 (2): 247–255. doi:10.1038/ejcn.2014.154.
Vancouver
1.
Ferrari M, Cuenca-García M, Valtueña J, Moreno L, Censi L, González-Gross M, et al. Inflammation profile in overweight/obese adolescents in Europe: an analysis in relation to iron status. EUROPEAN JOURNAL OF CLINICAL NUTRITION. 2015;69(2):247–55.
IEEE
[1]
M. Ferrari et al., “Inflammation profile in overweight/obese adolescents in Europe: an analysis in relation to iron status,” EUROPEAN JOURNAL OF CLINICAL NUTRITION, vol. 69, no. 2, pp. 247–255, 2015.
@article{7030885,
  abstract     = {{BACKGROUND/OBJECTIVES: The objectives of this study were to investigate the relationship between inflammatory parameters (CRP, c-reactive protein; AGP, alpha 1-acid glycoprotein), iron status indicators (SF, serum ferritin; sTfR, soluble transferrin receptor) and body mass index (BMI) z-score, fat-free mass (FFM) and fat mass (FM) in European adolescents. Differences in intake for some nutrients (total iron, haem and non-haem iron, vitamin C, calcium, proteins) were assessed according to BMI categories, and the association of nutrient intakes with BMI z-score, FM and FFM was evaluated. 
METHODS: A total of 876 adolescents participating in the Healthy Lifestyle in Europe by Nutrition in Adolescence-Cross Sectional Study were included in the study sample. 
RESULTS: Mean CRP values (standard error; s.e.) were significantly higher in overweight/obese adolescents (1.7 +/- 0.3 and 1.4 +/- 0.3 mg/l in boys and girls, respectively) than in thin/normal-weight adolescents (1.1 +/- 0.2 and 1.0 +/- 0.1 mg/l in boys and girls, respectively) (P < 0.05). For boys, mean SF values (s.e.) were significantly higher in overweight/obese adolescents (46.9 +/- 2.7 mu g/l) than in thin/normal-weight adolescents (35.7 +/- 1.7 mu g/l) (P < 0.001), whereas median sTfR values did not differ among BMI categories for both boys and girls. Multilevel regression analyses showed that BMI z-score and FM were significantly related to CRP and AGP (P < 0.05). Dietary variables did not differ significantly among BMI categories, except for the intake of vegetable proteins, which, for boys, was higher in thin/normal-weight adolescents than in overweight/obese adolescents (P < 0.05). 
CONCLUSIONS: The adiposity of the European adolescents was sufficient to cause chronic inflammation but not sufficient to impair iron status and cause iron deficiency.}},
  author       = {{Ferrari, M and Cuenca-García, M and Valtueña, J and Moreno, LA and Censi, L and González-Gross, M and Androutsos, O and Gilbert, CC and Huybrechts, Inge and Dallongeville, J and Sjöström, M and Molnar, D and De Henauw, Stefaan and Gómez-Martínez, S and de Moraes, ACF and Kafatos, A and Widhalm, K and Leclercq, C}},
  issn         = {{0954-3007}},
  journal      = {{EUROPEAN JOURNAL OF CLINICAL NUTRITION}},
  keywords     = {{ADIPOSE-TISSUE,3RD NATIONAL-HEALTH,NUTRITION EXAMINATION SURVEY,C-REACTIVE PROTEIN,BODY-MASS INDEX,OBESE CHILDREN,ANTHROPOMETRIC MEASUREMENTS,NORMAL-WEIGHT,DIETARY-INTAKE,NUTRIENT-DENSITY}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{247--255}},
  title        = {{Inflammation profile in overweight/obese adolescents in Europe: an analysis in relation to iron status}},
  url          = {{http://doi.org/10.1038/ejcn.2014.154}},
  volume       = {{69}},
  year         = {{2015}},
}

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