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Published in: Endocrine 2/2024

09-02-2024 | Addison's Disease | Original Article

Predictors of bone mineral density in patients receiving glucocorticoid replacement for Addison’s disease

Authors: Katarzyna Furman, Paweł Gut, Anna Sowińska, Marek Ruchała, Marta Fichna

Published in: Endocrine | Issue 2/2024

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Abstract

Purpose

Patients receiving long-term glucocorticoid (GC) treatment are at risk of osteoporosis, while bone effects of substitution doses in Addison’s disease (AD) remain equivocal. The project was aimed to evaluate serum bone turnover markers (BTMs): osteocalcin, type I procollagen N-terminal propeptide (PINP), collagen C-terminal telopeptide (CTX), sclerostin, DKK-1 protein, and alkaline phosphatase (ALP) in relation to bone mineral density (BMD) during GC replacement.

Methods

Serum BTMs and hormones were assessed in 80 patients with AD (22 males, 25 pre- and 33 postmenopausal females) on hydrocortisone (HC) substitution for ≥3 years. Densitometry with dual-energy X-ray absorptiometry covered the lumbar spine (LS) and femoral neck (FN).

Results

Among BTMs, only PINP levels were altered in AD. BMD Z-scores remained negative except for FN in males. Considering T-scores, osteopenia was found in LS in 45.5% males, 24% young and 42.4% postmenopausal females, while osteoporosis in 9.0%, 4.0% and 21.1%, respectively. Lumbar BMD correlated positively with body mass (p = 0.0001) and serum DHEA-S (p = 9.899 × 10−6). Negative correlation was detected with HC dose/day/kg (p = 0.0320), cumulative HC dose (p = 0.0030), patient’s age (p = 1.038 × 10−5), disease duration (p = 0.0004), ALP activity (p = 0.0041) and CTX level (p = 0.0105). However, only age, body mass, ALP, serum CTX, and sclerostin remained independent predictors of LS BMD.

Conclusion

Standard HC substitution does not considerably accelerate BMD loss in AD patients and their serum BTMs: CTX, osteocalcin, sclerostin, DKK-1, and ALP activity remain within the reference ranges. Independent predictors of low lumbar spine BMD, especially ALP activity, serum CTX and sclerostin, might be monitored during GC substitution.
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Metadata
Title
Predictors of bone mineral density in patients receiving glucocorticoid replacement for Addison’s disease
Authors
Katarzyna Furman
Paweł Gut
Anna Sowińska
Marek Ruchała
Marta Fichna
Publication date
09-02-2024
Publisher
Springer US
Published in
Endocrine / Issue 2/2024
Print ISSN: 1355-008X
Electronic ISSN: 1559-0100
DOI
https://doi.org/10.1007/s12020-024-03709-3

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