Abstract
Purpose
The activins-follistatins-inhibins (AFI) hormonal system is considered to regulate muscle and bone mass. We aimed to evaluate AFI in postmenopausal women with an incident hip fracture.
Methods
In this post-hoc analysis of a hospital based case-control study, we evaluated circulating levels of the AFI system in postmenopausal women with a low-energy hip fracture admitted for fixation compared with postmenopausal women with osteoarthritis scheduled for arthroplasty.
Results
Circulating levels of follistatin (p = 0.008), FSTL3 (p = 0.013), activin B and AB (both p < 0.001), as well as activin AB/follistatin and activin AB/FSTL3 ratios (p = 0.008 and p = 0.029, respectively) were higher in patients than controls in unadjusted models. Differences for activins B and AB remained after adjustment for age and BMI (p = 0.006 and p = 0.009, respectively) and for FRAX-based risk for hip fracture (p = 0.008 and p = 0.012, respectively) but were lost when 25OHD was added to the regression models.
Conclusions
Our data indicate no major changes in the AFI system in postmenopausal women at the time of hip fracture compared to postmenopausal women with osteoarthritis except for higher activin B and AB levels, whose significance, however, was lost when 25OHD was added to the adjustment models.
Clinical Trials
Clinical Trials identifier: NCT04206618.
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Data availability
Data will be available upon reasonable request.
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Conception and design of the work: A.D.A., M.S., C.S.M. Acquisition, analysis, or interpretation of data: A.D.A., S.A.P., M.S., D.A.A., A.S., A.K., B.K., C.S.M. Drafting the work: A.D.A. Revising the work critically for important intellectual content: S.A.P., C.S.M. Final approval of the submitted version: A.D.A., S.A.P., M.S., D.A.A., A.S., A.K., B.K., C.S.M. Agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved: A.D.A., S.A.P., M.S., D.A.A., A.S., A.K., B.K., C.S.M.
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C.S.M. is a consultant of Ansh Laboratories. A.K. and B.K. are Ansh Laboratories employees. A.D.A., S.A.P, M.S., D.A.A., A.S. and P.M. have no conflict of interest in relation to the present study.
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Anastasilakis, A.D., Polyzos, S.A., Savvidis, M. et al. Association of activins, follistatins and inhibins with incident hip fracture in women with postmenopausal osteoporosis: a proof of concept, case–control study. Endocrine 81, 573–578 (2023). https://doi.org/10.1007/s12020-023-03402-x
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DOI: https://doi.org/10.1007/s12020-023-03402-x