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  • Title: Mid-regional pro-atrial natriuretic peptide and blood pressure in adolescents: effect of gender and pubertal stage.
    Author: Goharian TS, Gimsing AN, Goetze JP, Faber J, Andersen LB, Grøntved A, Jeppesen JL.
    Journal: Blood Press; 2015; 24(6):347-52. PubMed ID: 25968593.
    Abstract:
    Little is known about blood pressure in relation to circulating natriuretic peptide concentrations and gender in generally healthy adolescents. We studied 15-year-old females and males (n = 335) from the Danish site of the European Youth Heart Study (EYHS). Blood pressure was measured using a standardized protocol, sexual maturity was assessed according to Tanner stage, and as a surrogate for atrial natriuretic peptide, we measured mid-regional pro-atrial natriuretic peptide (MR-proANP) in plasma. Compared with boys, girls had lower systolic blood pressure (SBP) (mean ± SD: 109.6 ± 9.9 mmHg vs 116.9 ± 11.4 mmHg, p < 0.0001) and higher plasma MR-proANP concentrations [median (interquartile range): 42.1 pmol/l (31.9-50.2 pmol/l) vs 36.6 pmol/l (30.6-44.9 pmol/l), p = 0.0046]. When female adolescents were further subdivided according to Tanner stage, there were no differences in blood pressure and plasma MR-proANP concentrations between post-pubertal and pubertal girls (p > 0.17). In contrast, after similar subdivision, post-pubertal boys had higher SBP (mean ± SD: 117.7 ± 11.7 mmHg vs 111.4 ± 7.9 mmHg, p = 0.029) and lower plasma MR-proANP concentrations [median (interquartile range): 36.2 pmol/l (30.6-43.1 pmol/l) vs 46.4 pmol/l (30.3-51.1 pmol/l), p = 0.043] compared with pubertal boys. Given their higher SBP, boys had lower than expected plasma concentrations of MR-proANP compared with girls, and given their higher SBP, post-pubertal boys had lower than expected plasma concentrations of MR-proANP compared with pubertal boys.
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