Aldosterone and the Mineralocorticoid Receptor: Risk Factors for Cardiometabolic Disorders

Rajesh Garg1, Gail K Adler

  • 1Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Harvard Medical School, 221 Longwood Avenue, Boston, MA, 02115, USA.

Insights

Mineralocorticoid receptor (MR) activation in fat tissue drives dysfunction, promoting metabolic and cardiovascular disease. MR antagonists show promise for treating type 2 diabetes and metabolic syndrome.

Area of Science:

  • Endocrinology and Metabolism
  • Cardiovascular Science
  • Adipose Tissue Biology

Background:

  • Preclinical studies implicate the mineralocorticoid receptor (MR) in adipose tissue physiology.
  • Increased MR activation in adipocytes leads to dysfunction, reducing insulin-sensitizing products and increasing inflammatory factors.
  • MR activation is a potential link between obesity, metabolic syndrome, and related cardiometabolic diseases.

Purpose of the Study:

  • To explore the role of MR in adipose tissue dysfunction.
  • To investigate the potential of MR antagonists in managing metabolic and cardiovascular complications.
  • To summarize current evidence on MR antagonists in type 2 diabetes, obesity, and metabolic syndrome.

Main Methods:

  • Review of preclinical studies on MR activation in adipose tissue.
  • Analysis of clinical data on MR antagonist use in heart failure patients.
  • Examination of recent trials investigating MR antagonists for cardiometabolic damage reversal in type 2 diabetes.

Main Results:

  • Preclinical data show MR activation causes adipocyte dysfunction, contributing to metabolic and cardiovascular disease.
  • MR activation appears to link obesity and metabolic syndrome, mediating pathogenic consequences.
  • MR antagonists have shown promising results in reversing cardiometabolic damage in type 2 diabetes patients and reduce mortality/morbidity in heart failure.

Conclusions:

  • MR plays a significant role in adipose tissue dysfunction and cardiometabolic disease development.
  • MR antagonists are effective in heart failure and show potential for treating type 2 diabetes, obesity, and metabolic syndrome.
  • Further research is needed to confirm the benefits of MR antagonists in these metabolic conditions.

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