Diurnal cortisol features with cardiovascular disease in hypertensive patients: a cohort study

Lin Gan1, Nanfang Li1, Mulalibieke Heizati1

  • 1Hypertension Center of People's Hospital of Xinjiang Uygur Autonomous Region, Xinjiang Hypertension Institute; National Health Committee Key Laboratory of Hypertension Clinical Research, Key Laboratory of Xinjiang Uygur Autonomous Region, Hypertension Research Laboratory, Xinjiang Clinical Medical Research Center for Hypertension (Cardio-Cerebrovascular) Diseases, Urumqi, Xinjiang, China.

Insights

Diurnal cortisol patterns, specifically a steep diurnal cortisol slope (DCS), are linked to reduced cardiovascular disease (CVD) risk in hypertensive men. Higher midnight cortisol levels increase CVD risk in this population.

Area of Science:

  • Endocrinology
  • Cardiovascular Medicine
  • Hypertension Research

Background:

  • The hypothalamic-pituitary-adrenal (HPA) axis and diurnal cortisol patterns are implicated in cardiovascular disease (CVD).
  • The specific impact of diurnal cortisol features on future CVD risk in hypertensive individuals remains unclear.

Purpose of the Study:

  • To investigate the association between diurnal cortisol features and the incidence of CVD.
  • To evaluate the predictive value of cortisol rhythm for CVD events in patients with hypertension.

Main Methods:

  • Utilized data from the Urumqi Research on Sleep Apnea and Hypertension (UROSAH) cohort (2011-2021).
  • Employed Cox proportional hazards models to analyze the relationship between baseline diurnal cortisol features (diurnal cortisol slope and midnight cortisol) and incident CVD.
  • Conducted sex-specific and sensitivity analyses.

Main Results:

  • A steep diurnal cortisol slope (DCS) was associated with a significantly decreased risk of CVD (HR=0.86, P=0.011).
  • Higher midnight cortisol levels were positively associated with an increased risk of CVD (HR=1.24, P=0.002).
  • These associations were primarily observed in men, with no significant link found in the female subgroup.

Conclusions:

  • Flatter DCS and elevated midnight cortisol levels are risk factors for CVD in hypertensive patients, particularly men.
  • Monitoring diurnal cortisol rhythm may aid in identifying hypertensive individuals at higher risk for CVD.
Abstract

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