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Steroid Profiling and Circadian Cortisol Secretion in Patients with Mild Autonomous Cortisol Secretion: A Cross-Sectional Study

J. Saini, Sumitabh Singh, Andreas Ebbehoj, Catherine D. Zhang, R. Nathani, V. Fell, E. Atkinson, Sara J. Achenbach et al.

Journal of Clinical Endocrinology and Metabolism, 2024

72 participants · 13 citations

Abstract

CONTEXT

Mild autonomous cortisol secretion (MACS) is diagnosed based on post-dexamethasone cortisol>1.8 mcg/dL. Scarce evidence exists on steroid circadian secretion and steroid metabolome in MACS.

OBJECTIVE

To characterize 24-hour (h) urine steroid metabolome in patients with MACS and determine circadian differences in urine steroid profiling and cortisol concentrations in patients with MACS versus referent subjects.

DESIGN

Cross-sectional study, 2018-2023.

SETTING

Referral center.

PARTICIPANTS

Patients with MACS and age-, sex-, BMI-, and menopausal status-matched referent subjects.

MEASUREMENTS

Urine was collected over 24h period as separate day- and night-time collections. High-resolution mass spectrometry assay was used to measure 25 steroids. A subgroup of patients and referent subjects were admitted for every 2h serum measurements of free and total cortisol.

OUTCOMES

Steroids, sums, and ratios.

RESULTS

Patients with MACS (n=72) had lower mcg/24h median androgens (2084 vs 3283, P<0.001), higher glucocorticoids (15754 vs 12936, P<0.001), and higher glucocorticoid/androgen ratio (8.7 vs 3.9, P<0.001), compared to referent subjects. Patients also had lower steroid day/night ratios compared to referent subjects, reflecting a higher relative nocturnal steroid production in MACS. In a subgroup of 12 patients with MACS and 10 referent subjects, the 24-hour area under the curves for total and free cortisol were similar. However, evening mean total (5.3 vs 4.0 mcg/dL, P=0.056)…

How strong is the evidence?

Evidence Hub reads this as a cross-sectional, done in people. Its evidence level is 4 of 5 (Low · observational). Observational designs can show an association but not prove cause. Reported size: 72 participants or records.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

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