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Horm Res Paediatr. 2010;73(5):341-8. doi: 10.1159/000308166. Epub 2010 Apr 14.

Gender dimorphic associations between N-terminal pro-brain natriuretic peptide, body mass index and blood pressure in children and adolescents.

Author information

1
First Department of Pediatrics, Childhood Obesity Clinic, Athens University Medical School, Aghia Sophia Children's Hospital, Athens, Greece. ppervanid @ med.uoa.gr

Abstract

BACKGROUND:

Obesity and hypertension are often comorbid, but the pathophysiologic mechanisms that link them are not fully understood. Natriuretic peptides might play a role in this association. The majority of studies show lower brain natriuretic peptide (BNP) concentrations as well as lower concentrations of the N-terminal of the prohormone (NT-proBNP) in obese than normal body mass index (BMI) adults and higher BNP concentrations in hypertensive than in normotensive individuals. In children, there are no studies examining the relations between NT-proBNP, BMI and blood pressure.

MATERIALS AND METHODS:

Ninety-six children, 24 obese/25 normal BMI boys, and 23 obese/24 normal BMI girls, aged 10-16 years, were studied. Plasma NT-proBNP was measured using electrochemiluminescence.

RESULTS:

In males, NT-proBNP concentrations were lower in the obese than the normal BMI group but higher in the obese hypertensive than the obese normotensive group (p = 0.04). In addition, a significant positive correlation was noted between plasma NT-proBNP and blood pressure (p = 0.03) only in obese males. In females, no correlations were detected between NT-proBNP, BMI and systolic or diastolic blood pressure.

CONCLUSIONS:

Longitudinal studies are needed to define the role of NT-proBNP as a screening biomarker in obese children, particularly males, to determine their risk for developing arterial hypertension.

PMID:
20389104
DOI:
10.1159/000308166
[Indexed for MEDLINE]

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