Normal values of bone turnover markers in childhood

To determine the normal profile of bone turnover markers in childhood in order to enable evaluation of bone mineralization status in the healthy pediatric population and in the population at risk of osteoporosis. A population of 75 healthy children aged between 6 months and 14 years was studied. Lev...

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Bibliographic Details
Published in:Anales de pediatría (Barcelona, Spain : 2003) Spain : 2003), 2004-04, Vol.60 (4), p.330-336
Main Authors: Manjón Llorente, G, Fernández-Espuelas, C, González López, J Ma, Ruiz-Echarri, M P, Baldellou Vázquez, A
Format: Article
Language:Spanish
Subjects:
Adolescent
Amino Acids - urine
Bone and Bones - metabolism
Child
Child, Preschool
Humans
Hydroxyproline - urine
Infant
Osteocalcin - blood
Peptide Fragments - blood
Procollagen - blood
Reference Values
Spain
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Summary:To determine the normal profile of bone turnover markers in childhood in order to enable evaluation of bone mineralization status in the healthy pediatric population and in the population at risk of osteoporosis. A population of 75 healthy children aged between 6 months and 14 years was studied. Levels of osteocalcin and C-terminal procollagen peptide type I, as markers of bone apposition, were determined in serum. Levels of hydroxyproline and pyridinoline, as markers of bone resorption, were determined in urine samples. Statistical analysis of the results was performed. The highest levels of the four markers were obtained in the first 4 years of life. Markers of bone resorption showed a continuous statistically significant decrease until the age of 14 years (p < 0.05), whereas markers of bone apposition decreased slightly after the age of 4 years and then remained stable until the age of 14 years. These findings are compatible with the presence of intense bone turnover in the first 4 years of life and with a predominance of the phenomenon of bone apposition throughout the first 14 years of life. Knowledge of the normal profile of these markers allows evaluation of bone mineralization status in the healthy pediatric population and in the population at risk of osteoporosis.
ISSN:1695-4033