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Published in: Calcified Tissue International 1/2016

01-01-2016 | Original Research

Impact of Growth Hormone on Adult Bone Quality in Turner Syndrome: A HR-pQCT Study

Authors: Munier A. Nour, Lauren A. Burt, Rebecca J. Perry, David K. Stephure, David A. Hanley, Steven K. Boyd

Published in: Calcified Tissue International | Issue 1/2016

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Abstract

Women with Turner syndrome (TS) are known to be at risk of osteoporosis. While childhood growth hormone (GH) treatment is common in TS, the impact of this therapy on bone health has been poorly understood. The objective of this study was to determine the influence of childhood GH treatment on adult bone quality in women with TS. 28 women aged 17–45 with confirmed TS (12 GH-treated) agreed to participate in this cross-sectional study. Dual X-ray absorptiometry (DXA) of lumbar spine, hip, and radius and high-resolution peripheral quantitative computed tomography (HR-pQCT) scans of the radius and tibia were used to determine standard morphological and micro-architectural parameters of bone health. Finite element (FE) analysis and polar moment of inertia (pMOI) were used to estimate bone strength. GH-treated subjects were +7.4 cm taller (95 % CI 2.5–12.3 cm, p = 0.005). DXA-determined areal BMD of hip, spine, and radius was similar between treatment groups. Both tibial and radial total bone areas were greater among GH-treated subjects (+20.4 and +21.2 % respectively, p < 0.05), while other micro-architectural results were not different between groups. pMOI was significantly greater among GH-treated subjects (radius +35.0 %, tibia +34.0 %, p < 0.05). Childhood GH treatment compared to no treatment in TS was associated with an increased height, larger bones, and greater pMOI, while no significant difference in DXA-derived BMD, HR-pQCT micro-architectural parameters, or FE-estimated bone strength was detected. The higher pMOI and greater bone size may confer benefit for fracture reduction in these GH-treated patients.
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Metadata
Title
Impact of Growth Hormone on Adult Bone Quality in Turner Syndrome: A HR-pQCT Study
Authors
Munier A. Nour
Lauren A. Burt
Rebecca J. Perry
David K. Stephure
David A. Hanley
Steven K. Boyd
Publication date
01-01-2016
Publisher
Springer US
Published in
Calcified Tissue International / Issue 1/2016
Print ISSN: 0171-967X
Electronic ISSN: 1432-0827
DOI
https://doi.org/10.1007/s00223-015-0064-8

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