Beyond a Measure of Liver Function-Bilirubin Acts as a Potential Cardiovascular Protector in Chronic Kidney Disease

Ming-Tsun Tsai1,2, Der-Cherng Tarng3,4,5

  • 1Division of Nephrology, Department of Medicine, Taipei Veterans General Hospital, Taipei 11217, Taiwan. mingtsun74@gmail.com.

Insights

Higher serum bilirubin levels in adults may protect against chronic kidney disease (CKD) and cardiovascular disease (CVD) due to bilirubin's antioxidant and anti-inflammatory effects, potentially reducing associated mortality.

Area of Science:

  • Biochemistry
  • Cardiology
  • Nephrology

Background:

  • Bilirubin, a known neonatal neurotoxin, exhibits protective effects in adults.
  • Physiological serum bilirubin concentrations are linked to reduced risks of chronic kidney disease (CKD) and cardiovascular disease (CVD).

Purpose of the Study:

  • To review the biological actions of bilirubin in the pathogenesis of CKD and CVD.
  • To explore bilirubin metabolism as a therapeutic target for ameliorating morbidity and mortality in CKD patients.

Main Methods:

  • Literature review of recent advances in bilirubin's biological actions.
  • Analysis of bilirubin's role in vascular homeostasis, insulin sensitivity, and lipid metabolism.

Main Results:

  • Bilirubin's antioxidant and anti-inflammatory properties are key to its protective mechanisms against CKD and CVD.
  • Bilirubin improves insulin sensitivity, lowers LDL cholesterol, and inhibits platelet activation.
  • These effects contribute to maintaining vascular homeostasis and reducing disease progression and mortality.

Conclusions:

  • Targeting bilirubin metabolism presents a promising therapeutic strategy for CKD and CVD.
  • Modulating bilirubin levels could mitigate the progression and complications of CKD and CVD.
  • Further research into bilirubin's multifaceted roles is warranted for clinical applications.

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