Hypercortisolemic depression is associated with increased intra-abdominal fat

Area of Science:

• Endocrinology
• Cardiovascular Medicine
• Psychiatry

Background:

• Major depression and metabolic syndrome share increased cardiovascular disease risk.
• Both conditions are associated with endocrine dysfunction leading to visceral fat accumulation, a marker of cardiovascular risk.

Purpose of the Study:

• To investigate the relationship between hypercortisolemia, visceral fat, and insulin resistance in postmenopausal women with major depression.
• To explore the endocrine mechanisms linking depression to cardiovascular risk.

Main Methods:

• Computed tomography was used to measure intra-abdominal fat at L1 and L4 in 22 depressed women and 23 controls.
• Salivary free cortisol was measured over 7 days in all participants.
• Oral glucose tolerance tests were performed on depressed patients.

Main Results:

• Depressed patients with hypercortisolemia had significantly greater visceral fat depots at L1 compared to normocortisolemic patients.
• No overall difference in visceral fat was found between depressed patients and controls.
• Hypercortisolemic depressed patients exhibited higher glucose levels during oral glucose tolerance tests, suggesting insulin resistance.

Conclusions:

• Hypercortisolemia in major depression is associated with increased visceral fat and insulin resistance.
• This endocrine profile in depressed patients may contribute to their elevated cardiovascular risk.
• The findings highlight a potential mechanism linking major depression to cardiovascular disorders.