Pathophysiology of Hypercortisolism

This episode, titled ‘Pathophysiology of Hypercortisolism,’ features panelists examining the biological mechanisms through which excess cortisol contributes to metabolic dysfunction and cardiometabolic disease. The expert faculty discuss how chronic cortisol exposure affects multiple organ systems and drives many of the clinical manifestations commonly observed in patients with hypercortisolism.

Throughout the discussion, the panel of experts explores the impact of cortisol on glucose metabolism, highlighting its effects on hepatic gluconeogenesis, insulin resistance, and impaired glucose utilization. They explain how excess cortisol promotes increased glucose production in the liver while simultaneously reducing glucose uptake in muscle, contributing to persistent hyperglycemia. The panelists also discuss the role of pancreatic dysfunction and visceral adiposity in worsening metabolic control and increasing the risk of type 2 diabetes.

The conversation further examines the mechanisms underlying hypertension and dyslipidemia in hypercortisolism. Expert endocrinologists describe how cortisol influences fluid retention, activates pathways involved in blood pressure regulation, and increases sensitivity to catecholamines. They also discuss the effects of cortisol on lipid metabolism, including changes in triglycerides and low-density lipoprotein cholesterol that contribute to elevated cardiovascular risk.

In addition, the panel highlights emerging research on tissue-specific cortisol regulation and the role of 11β-hydroxysteroid dehydrogenase type 1 enzyme in metabolic disease. The experts discuss how local cortisol activity within tissues may influence disease progression and suggest that tissue-level cortisol exposure may be an important contributor to metabolic dysfunction beyond circulating cortisol concentrations alone. By connecting molecular mechanisms with clinical manifestations, the panel provides valuable insight into the complex pathophysiology of hypercortisolism and its far-reaching effects on metabolic health.

In the next episode, ‘Navigating Treatment Selection in Hypercortisolism,’ panelists will discuss available treatment options for hypercortisolism and how clinicians individualize therapy based on disease etiology, severity, comorbidities, and long-term treatment goals. The expert faculty will also compare mechanisms of action across therapeutic classes and explore how patient-specific factors influence treatment selection.