The Journal of clinical endocrinology and metabolism · 2026
Impact of mild autonomous cortisol secretion on bone density, metabolism, and microstructure: a cross-sectional study.
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Zhang Catherine D, Saini Jasmine, Singh Sumitabh, Suresh Malavika, Thangamuthu Karthik, Nathani Rohit, Ebbehoj Andreas, Fell Vanessa, Achenbach Sara J, Atkinson Elizabeth J, Khosla Sundeep, Bancos Irina
Аннотация
CONTEXT: Patients with mild autonomous cortisol secretion (MACS) have higher rates of vertebral fractures compared to patients with non-functioning adrenal nodules, yet bone density is not always reduced.
OBJECTIVE: To characterize the effect of MACS on bone density, metabolism, and microstructure as measured by high-resolution peripheral quantitative computed tomography (HR-pQCT).
DESIGN: Cross-sectional study, 2019-2022.
SETTING: Tertiary referral center.
PARTICIPANTS: Seventy-five patients with MACS and 75 age-, sex-, and gonadal status-matched referent subjects.
MEASUREMENTS: Bone turnover markers, dual-energy x-ray absorptiometry (DXA) scan, and HR-pQCT.
OUTCOMES: Areal and volumetric bone mineral density (aBMD, vBMD), trabecular bone score (TBS), microstructural parameters including trabecular bone volume to total volume (BV/TV) ratio.
RESULTS: While no differences in aBMD were observed at any skeletal site, patients with MACS had decreased TBS (1.389 vs 1.475, P < .001) and lower osteocalcin concentration (17.1 vs 19.5 ng/mL, P = .030) than referent subjects. On HR-pQCT at the tibia, patients with MACS had reduced trabecular BV/TV (0.220 vs 0.233, P = .015) compared to referent subjects. On multivariable analysis, MACS was associated with lower TBS (odds ratio [OR] per SD decrease 2.87 [1.65-5.00]), lower trabecular BV/TV at the radius (OR per SD decrease 2.58 [1.33-5.00]), and lower trabecular BV/TV at the tibia (OR per SD decrease 4.06 [2.10-7.86]).
CONCLUSION: Patients with MACS have microstructural deterioration that may not be evident on routine DXA aBMD testing.
OBJECTIVE: To characterize the effect of MACS on bone density, metabolism, and microstructure as measured by high-resolution peripheral quantitative computed tomography (HR-pQCT).
DESIGN: Cross-sectional study, 2019-2022.
SETTING: Tertiary referral center.
PARTICIPANTS: Seventy-five patients with MACS and 75 age-, sex-, and gonadal status-matched referent subjects.
MEASUREMENTS: Bone turnover markers, dual-energy x-ray absorptiometry (DXA) scan, and HR-pQCT.
OUTCOMES: Areal and volumetric bone mineral density (aBMD, vBMD), trabecular bone score (TBS), microstructural parameters including trabecular bone volume to total volume (BV/TV) ratio.
RESULTS: While no differences in aBMD were observed at any skeletal site, patients with MACS had decreased TBS (1.389 vs 1.475, P < .001) and lower osteocalcin concentration (17.1 vs 19.5 ng/mL, P = .030) than referent subjects. On HR-pQCT at the tibia, patients with MACS had reduced trabecular BV/TV (0.220 vs 0.233, P = .015) compared to referent subjects. On multivariable analysis, MACS was associated with lower TBS (odds ratio [OR] per SD decrease 2.87 [1.65-5.00]), lower trabecular BV/TV at the radius (OR per SD decrease 2.58 [1.33-5.00]), and lower trabecular BV/TV at the tibia (OR per SD decrease 4.06 [2.10-7.86]).
CONCLUSION: Patients with MACS have microstructural deterioration that may not be evident on routine DXA aBMD testing.