Cardiac Function Modulation in Type 2 Diabetes Through SGLT2 Inhibition

Summary

In type 2 diabetes, sodium–glucose co-transporter 2 inhibitors (SGLT2is) have evolved from purely glucose-lowering agents into therapies that confer robust cardiac protection. By blocking renal glucose reabsorption, these drugs induce natriuresis and osmotic diuresis, reducing intravascular volume and ventricular preload. Concomitantly, SGLT2is shift myocardial substrate utilisation toward ketone bodies, potentially optimising energy efficiency in the failing heart. Clinically, treatment is associated with regression of left ventricular hypertrophy, reductions in chamber volumes and improvements in both systolic and diastolic performance across heart failure phenotypes. These structural and functional benefits are paralleled by decreases in natriuretic peptides and other markers of myocardial stress. Collectively, this multifaceted mechanism translates into significant reductions in heart failure hospitalisations and cardiovascular mortality, establishing SGLT2 inhibition as a disease-modifying approach in people with type 2 diabetes.

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Cardiac Function Modulation in Type 2 Diabetes Through SGLT2 Inhibition publication trend

The graph below shows the total number of articles in cardiac function modulation in type 2 diabetes through sglt2 inhibition across all publications each year (not limited to Nature Index journals).

Technical terms

Sodium–glucose co-transporter 2 (SGLT2): A protein in the renal proximal tubule responsible for reclaiming filtered glucose; its inhibition promotes urinary glucose and sodium excretion.

Left ventricular ejection fraction (LVEF): The percentage of blood volume ejected from the left ventricle during systole, used as a measure of systolic performance.

Diastolic function: The capacity of the left ventricle to relax and fill during diastole, often assessed by echocardiographic parameters such as the mitral inflow E/e′ ratio.

Myocardial energetics: The processes by which cardiac cells generate adenosine triphosphate (ATP), frequently quantified by the phosphocreatine:ATP ratio via magnetic resonance spectroscopy.

Left ventricular remodelling: Structural adaptations of the ventricular myocardium—changes in mass, geometry and volume—that occur in response to chronic stress and may be reversed by therapeutic interventions.

References

  1. Assessment of Cardiac Energy Metabolism, Function, and Physiology in Patients With Heart Failure Taking Empagliflozin: The Randomized, Controlled EMPA-VISION Trial. Circulation (2023).
  2. A randomized controlled trial of dapagliflozin on left ventricular hypertrophy in people with type two diabetes: the DAPA-LVH trial. European Heart Journal (2020).
  3. Effect of sodium–glucose cotransporter 2 inhibitors on cardiac structure and function in type 2 diabetes mellitus patients with or without chronic heart failure: a meta-analysis. Cardiovascular Diabetology (2021).

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