Cardiac Dysfunction in Association with Increased Inflammatory Markers in Primary Aldosteronism

Area of Science:

• Endocrinology
• Cardiology
• Molecular Biology

Background:

• Oxidative stress exacerbates aldosterone-induced damage in primary aldosteronism (PA) via inflammation.
• Investigating inflammatory markers associated with oxidative stress and their impact on heart function in PA patients is crucial.

Purpose of the Study:

• To determine if inflammatory markers linked to oxidative stress are elevated in PA patients.
• To assess the correlation between these markers and cardiac function evaluated by echocardiography.

Main Methods:

• Thirty-two PA patients (aldosterone-renin ratio > 30) were enrolled.
• Measured inflammatory markers: IL-1β, IL-6, IL-8, MCP-1, TNF-α, MMP-2, MMP-9.
• All patients underwent adrenal venous sampling.

Main Results:

• MMP-2 levels were higher in aldosterone-producing adenoma (APA) than bilateral adrenal hyperplasia (BAH).
• APA patients showed increased left ventricular (LV) mass and A velocity.
• IL-1β, TNF-α, MMP-2, and MMP-9 correlated with specific cardiac parameters (LV mass, atrial volume, A velocity).

Conclusions:

• Elevated inflammatory markers associated with oxidative stress may contribute to diastolic dysfunction and LV hypertrophy in PA.
• Further research is needed to elucidate the role of oxidative stress in cardiac remodeling in PA.