Abstract (EN):
Background: Body fat is related to changes in lipid profile, blood pressure and metabolism of insulin and glucose,
known as the metabolic syndrome (MS). The aim of this study was to estimate the prevalence of metabolic syndrome
(MS) and its components among overweight and obese Portuguese schoolchildren, and to identify associated clinical
and biochemical characteristics.
Methods: A total of 82 children (14 overweight and 68 obese; 40 boys and 42 girls) aged 7-9 years, underwent
anthropometric measurements. A blood sample was obtained to assess biochemical parameters. Insulin resistance (IR)
was determined by the Homeostasis Model Assessment of Insulin Resistance (HOMA-IR). MS was defined by the
National Cholesterol Education Program Adult Treatment Panel III criteria modified by Cook.
Results: The prevalence of MS was 15.8%. Abdominal obesity was present in all children. Frequency of elevated blood
pressure, low HDL-cholesterol and elevated triglyceride concentrations were 62.6%, 13.4% and 11.0%, respectively.
None of the children presented impaired fasting glucose, however hyperinsulinemia (7.3%) and IR (8.5%) were
observed. The number of components of MS was higher in children with higher z-BMI (ρ = 0.411; p < 0.001). MS was
associated with higher leptin concentrations. No association was found with adiponectin or ghrelin levels. Leptin
correlated positively with obesity, glucose metabolism, lipid profile, hepatic function and C-reactive protein, and
negatively with HDL and Apolipoprotein A-I/B ratio.
Conclusions: This study shows a significant prevalence of MS among obese schoolchildren. Abdominal obesity and
elevated blood pressure were the most frequent components of this syndrome. Dyslipidemia, IR and high levels of
leptin were also associated with MS in this young group.
Language:
English
Type (Professor's evaluation):
Scientific
Contact:
cpedrosa@fcna.up.pt
Notes:
<a href="http://www.ncbi.nlm.nih.gov/pubmed?term=20537155[pmid]">Indexado na PubMed</a>
No. of pages:
7
License type: