The Kidney-Heart Connection in Obesity

Area of Science:

• Cardiology
• Nephrology
• Metabolic Syndrome

Background:

• Cardiorenal syndrome (CRS) involves a bidirectional relationship between heart and kidney failure, exacerbated by metabolic dysregulation.
• Obesity significantly worsens CRS, creating a cardiorenal metabolic syndrome (CRMetS) through adipose tissue dysfunction.

Purpose of the Study:

• To describe the contribution of obesity to the development of CRMetS.
• To elucidate the factors and mechanisms driving CRMetS.

Main Methods:

• Review of existing literature on cardiorenal interactions and metabolic syndrome.
• Analysis of mechanisms linking obesity, adipose tissue dysfunction, inflammation, and organ failure.

Main Results:

• Obesity induces adipose tissue dysfunction, leading to a lipotoxic state with inflammation, insulin resistance, dyslipidemia, oxidative stress, and hyperuricemia.
• Pro-inflammatory gut microbiota in obese individuals release uremic toxins, accelerating oxidative stress and inflammation.

Conclusions:

• Obesity is a critical factor in the progression of CRS to CRMetS.
• Understanding the complex interplay of factors in CRMetS is essential, particularly given the global obesity epidemic, necessitating further research.