Ontology highlight
ABSTRACT: Background
This study aimed to investigate the relationships among osteocalcin, leptin and metabolic health outcomes in children ages 9-13 years.Methods
This was a cross-sectional analysis of baseline data from 161 boys and 157 girls (ages 9-13 years) who previously participated in a double-blinded randomized placebo controlled trial of vitamin D supplementation. Relationships among fasting serum total osteocalcin (tOC), undercarboxylated osteocalcin (ucOC), leptin, and metabolic health outcomes were analyzed.Results
Approximately 52% of study participants were obese based on percent body fat cutoffs (>25% for boys and >32% for girls) and about 5% had fasting serum glucose within the prediabetic range (i.e. 100 to 125 mg/dL). Serum tOC was not correlated with leptin, glucose, insulin, HOMA-IR, or HOMA-β after adjusting for percent body fat. However, serum ucOC negatively correlated with leptin (partial r = -0.16; p = 0.04) and glucose (partial r = -0.16; p = 0.04) after adjustment for percent body fat. Leptin was a positive predictor of insulin, glucose, HOMA-IR, and HOMA-β after adjusting for age, sex and percent body fat (all p < 0.001).Conclusions
These data depict an inverse relationship between leptin and various metabolic health outcomes in children. However, the notion that tOC or ucOC link fat with energy metabolism in healthy children was not supported.Clinical trial registration number
NCT00931580.
SUBMITTER: Giudici KV
PROVIDER: S-EPMC5341348 | biostudies-literature | 2017
REPOSITORIES: biostudies-literature
Giudici Kelly Virecoulon KV Kindler Joseph M JM Martin Berdine R BR Laing Emma M EM McCabe George P GP McCabe Linda D LD Hausman Dorothy B DB Martini Lígia Araújo LA Lewis Richard D RD Weaver Connie M CM Peacock Munro M Hill Gallant Kathleen M KM
Nutrition & metabolism 20170307
<h4>Background</h4>This study aimed to investigate the relationships among osteocalcin, leptin and metabolic health outcomes in children ages 9-13 years.<h4>Methods</h4>This was a cross-sectional analysis of baseline data from 161 boys and 157 girls (ages 9-13 years) who previously participated in a double-blinded randomized placebo controlled trial of vitamin D supplementation. Relationships among fasting serum total osteocalcin (tOC), undercarboxylated osteocalcin (ucOC), leptin, and metabolic ...[more]