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Erschienen in: Journal of Bone and Mineral Metabolism 6/2022

12.08.2022 | Original Article

Bone mass and biomarkers in young women with anorexia nervosa: a prospective 3-year follow-up study

verfasst von: Anna Svedlund, Cecilia Pettersson, Bojan Tubic, Lars Ellegård, Anders Elfvin, Per Magnusson, Diana Swolin-Eide

Erschienen in: Journal of Bone and Mineral Metabolism | Ausgabe 6/2022

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Abstract

Introduction

Anorexia nervosa (AN) increases the risk of impaired bone health, low areal bone mineral density (aBMD), and subsequent fractures. This prospective study investigated the long-term effects of bone and mineral metabolism on bone and biomarkers in 22 women with AN.

Materials and methods

Body composition and aBMD were measured by dual-energy X-ray absorptiometry (DXA) and peripheral quantitative computed tomography. Total and free 25-hydroxyvitamin D (25OHD), C-terminal collagen cross-links (CTX), osteocalcin, bone-specific alkaline phosphatase (BALP), leptin, sclerostin, and oxidized/non-oxidized parathyroid hormone (PTH) were analyzed before and after 12 weeks of intensive nutrition therapy and again 3 years later. An age-matched comparison group of 17 healthy women was recruited for the 3-year follow-up.

Results

Body mass index (BMI) and fat mass increased from baseline to 3 years in women with AN. Sclerostin decreased during nutrition therapy and further over 3 years, indicating reduced bone loss. CTX was elevated at baseline and after 12 weeks but decreased over 3 years. BALP increased during nutrition therapy and stabilized over 3 years. Free 25OHD was stable during treatment but decreased over 3 years. Non-oxidized PTH was stable during treatment but increased over 3 years. Trabecular volumetric BMD in AN patients decreased during the first 12 weeks and over 3 years despite stable BMI and bone biomarkers implying increased BMD.

Conclusion

Our findings highlight the importance of early detection and organized long-term follow-up of bone health in young women with a history of AN.
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Metadaten
Titel
Bone mass and biomarkers in young women with anorexia nervosa: a prospective 3-year follow-up study
verfasst von
Anna Svedlund
Cecilia Pettersson
Bojan Tubic
Lars Ellegård
Anders Elfvin
Per Magnusson
Diana Swolin-Eide
Publikationsdatum
12.08.2022
Verlag
Springer Nature Singapore
Erschienen in
Journal of Bone and Mineral Metabolism / Ausgabe 6/2022
Print ISSN: 0914-8779
Elektronische ISSN: 1435-5604
DOI
https://doi.org/10.1007/s00774-022-01359-x

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