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. 2024 Dec 12:15:1448566.
doi: 10.3389/fendo.2024.1448566. eCollection 2024.

Association of trabecular bone score corrected for tissue thickness with glucose metabolism in acromegaly

Martin Kužma  1 , Peter Vaňuga  2 , Dušan Pávai  2 , Zdenko Killinger  1 , Didier Hans  3 , Neil Binkley  4 , Juraj Payer  1 , Peter Jackuliak  1
Affiliations

Association of trabecular bone score corrected for tissue thickness with glucose metabolism in acromegaly

Martin Kužma et al. Front Endocrinol (Lausanne). .

Abstract

Introduction: Acromegaly is associated with increased vertebral fracture (VF) risk regardless of bone mineral density (BMD). However, the vertebral trabecular compartment is still low; a possible contributor to this may be impaired glucose metabolism (GM) which frequently complicates acromegaly. Additionally, soft tissue thickness may confound bone imaging in acromegaly patients.

Objective: This study aims to assess the association of GM with BMD, trabecular bone score adjusted for BMI (TBSBMI), and trabecular bone score adjusted for tissue thickness (TBSTT) among acromegaly subjects.

Patients and methods: A cross-sectional study was performed among 70 consecutive acromegaly patients (24 male/46 female, aged 55.1 years) divided in two subgroups: abnormal GM (n = 35) and normal GM (n = 35). Using DXA, BMD, TBSBMI, TBSTT, and VF screening were performed.

Results: In all subjects, TBSTT was higher (mean 9.5%) than TBSBMI. Abnormal GM subjects had lower TBSBMI (1.166 ± 0.15) than normal GM subjects (1.232 ± 0.12; p < 0.05). No between-group difference in TBSTT or BMD was observed. In a multiple regression model, the best predictor of TBSTT was HbA1c (p = 0.002). None of the DXA measures or GM parameters was a significant predictor of VF (n = 7).

Conclusion: The abnormal GM acromegaly subjects had lower TBSBMI than those with normal GM. TBSTT was higher than TBSBMI, and no between-group difference based on GM status was observed. TBSTT was significantly associated with GM parameters, notably HbA1c. The relationship of TBSTT with GM parameters may imply an effect of GM on trabecular bone microstructure in patients with acromegaly; a further study is indicated.

Keywords: acromegaly; bone mineral density; glucose metabolism; tissue thickness; trabecular bone score.

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Conflict of interest statement

DH is co-founder and CEO of Med-Imaps. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Differences of TBSBMI, TBSTT, L-spine BMD, and total hip BMD between subgroups with abnormal and normal glucose metabolism. A significant difference of TBSBMI was observed.
Figure 2
Figure 2
Differences of TBSBMI, TBSTT, L-spine BMD, and total hip BMD between subgroups with vertebral fracture (VF) and without VF. A significant difference of total hip BMD was observed.
See this image and copyright information in PMC

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