Androgen Deprivation Therapy Differentially Impacts Bone and Muscle in the Short Term in Physically Active Men With Prostate Cancer.

Autor: Maalouf NM; Charles and Jane Pak Center for Mineral Metabolism and Clinical Research University of Texas Southwestern Medical Center Dallas TX USA.; Department of Internal Medicine University of Texas Southwestern Medical Center Dallas TX USA., Chhabra A; Department of Radiology University of Texas Southwestern Medical Center Dallas TX USA., Zafereo J; Department of Physical Therapy University of Texas Southwestern Medical Center Dallas TX USA., Querry R; Department of Physical Therapy University of Texas Southwestern Medical Center Dallas TX USA., Towler DA; Charles and Jane Pak Center for Mineral Metabolism and Clinical Research University of Texas Southwestern Medical Center Dallas TX USA.; Department of Internal Medicine University of Texas Southwestern Medical Center Dallas TX USA., Thakur UJ; Department of Radiology University of Texas Southwestern Medical Center Dallas TX USA., Frankl J; Department of Radiology University of Texas Southwestern Medical Center Dallas TX USA., Poindexter JR; Charles and Jane Pak Center for Mineral Metabolism and Clinical Research University of Texas Southwestern Medical Center Dallas TX USA., Mogharrabi B; Medical School University of Texas Southwestern Medical Center Dallas TX USA., Xac M; Medical School University of Texas Southwestern Medical Center Dallas TX USA., Öz OK; Charles and Jane Pak Center for Mineral Metabolism and Clinical Research University of Texas Southwestern Medical Center Dallas TX USA.; Department of Radiology University of Texas Southwestern Medical Center Dallas TX USA., Rubin CD; Charles and Jane Pak Center for Mineral Metabolism and Clinical Research University of Texas Southwestern Medical Center Dallas TX USA.; Department of Internal Medicine University of Texas Southwestern Medical Center Dallas TX USA.
Jazyk: angličtina
Zdroj: JBMR plus [JBMR Plus] 2021 Nov 15; Vol. 6 (1), pp. e10573. Date of Electronic Publication: 2021 Nov 15 (Print Publication: 2022).
DOI: 10.1002/jbm4.10573
Abstrakt: Androgen deprivation therapy (ADT) is a cornerstone of advanced prostate cancer (PCa) therapy. Its use is associated with a loss of bone mineral density (BMD) and a greater risk of falls and osteoporotic fractures. In this prospective cohort study, we examined the impact of ADT on muscle and bone strength in men initiating ADT for PCa. Participants were evaluated at three time points: immediately before (week 0), and 6 and 24 weeks after ADT initiation. Study measures included fasting blood levels (for markers of muscle and bone metabolic activity), MRI and QCT imaging (for muscle fat content, and bone density and architecture), and validated clinical tests of muscle strength and gait. Sixteen men completed all study visits. At baseline and throughout the study, participants exercised a median of four times/week, but still experienced weight gain (+2.0 kg at week 24 versus week 0, p  = 0.004). Biochemically, all men sustained dramatic early and persistent reductions in sex hormones post-ADT, along with a progressive and significant increase in serum C-telopeptide of type I collagen (CTX, +84% at week 24 versus week 0). There was a trend for rise in serum sclerostin ( p  = 0.09) and interleukin 6 (IL-6) ( p  = 0.08), but no significant change in serum myostatin ( p  = 0.99). Volumetric BMD by QCT declined significantly at the femoral neck (-3.7% at week 24 versus week 0), particularly at the trabecular compartment. On MRI, there were no significant changes in thigh muscle fat fraction. On physical testing, men developed weaker grip strength, but experienced no worsening in lower extremity and lumbar spine muscle strength, or on functional tests of gait. In conclusion, in physically active men, ADT for 24 weeks results in a significant increase in bone resorption and reduction in BMD, but nonsignificant changes in thigh muscle quality (on imaging) or strength and gait (on functional testing). © 2021 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
(© 2021 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.)
Databáze: MEDLINE
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