Irisin serum levels are positively correlated with bone mineral status in a population of healthy children.

Abstract:

BACKGROUND:Irisin is a myokine secreted by skeletal muscle during physical activity. Irisin treatment increased cortical bone mineral density (BMD) in young healthy mice and restored bone and muscle mass loss in a mouse model of disuse-induced osteoporosis and muscular atrophy. In humans, Irisin was positively correlated with BMD in young athletes. Considering that the bone mass reached during childhood is one of the most important determinants of lifelong skeletal health, we sought to determine if Irisin levels were correlated with bone mineral status in children. METHODS:Irisin and bone metabolic markers were quantified in sera and bone mineral status was evaluated by quantitative ultrasound in a population of 34 healthy children (9.82 ± 3.2 years). RESULTS:We found that Irisin levels were positively correlated with the amplitude-dependent speed of sound Z-score (r = 0.305; p < 0.001), bone transmission time Z-score (r = 0.375; p < 0.001) and osteocalcin (r = 0.370; p < 0.001), and negatively with Dickkopf WNT Signaling Pathway Inhibitor 1 (r = -0.274; p < 0.001). CONCLUSION:In a regression analysis model, Irisin was one of the determinants of bone mineral status to a greater extent than bone alkaline phosphatase and parathyroid hormone, indicating that Irisin might be considered as one of the bone formation markers during childhood.

journal_name

Pediatr Res

journal_title

Pediatric research

authors

Colaianni G,Faienza MF,Sanesi L,Brunetti G,Pignataro P,Lippo L,Bortolotti S,Storlino G,Piacente L,D'Amato G,Colucci S,Grano M

doi

10.1038/s41390-019-0278-y

subject

Has Abstract

pub_date

2019-03-01 00:00:00

pages

484-488

issue

4

eissn

0031-3998

issn

1530-0447

pii

10.1038/s41390-019-0278-y

journal_volume

85

pub_type

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