Heart and bile acids - Clinical consequences of altered bile acid metabolism

Area of Science:

• Cardiology
• Hepatology
• Biochemistry

Background:

• Cardiac dysfunction is common in liver diseases like cirrhosis, primary biliary cholangitis, and primary sclerosing cholangitis.
• Cirrhotic cardiomyopathy affects approximately 50% of liver cirrhosis patients.
• Bile acid metabolism abnormalities are increasingly linked to cardiac pathology.

Purpose of the Study:

• To investigate the association between bile acid metabolism and cardiac dysfunction.
• To explore the role of specific bile acids in cardiac pathology.
• To evaluate the cardioprotective potential of ursodeoxycholic acid.

Main Methods:

• Review of existing literature on bile acid metabolism and cardiac function.
• Analysis of studies linking liver diseases and cardiac abnormalities.
• Examination of the effects of specific bile acids on cardiac parameters.

Main Results:

• Bile acids are implicated in QT interval prolongation, cardiac hypertrophy, cardiomyocyte apoptosis, and abnormal heart hemodynamics.
• Elevated maternal serum bile acids in intrahepatic cholestasis of pregnancy are linked to fetal arrhythmias.
• Lipophilic bile acids demonstrate a more detrimental impact on cardiac health.

Conclusions:

• Abnormal bile acid metabolism significantly contributes to cardiac dysfunction in liver cirrhosis and pregnancy.
• Ursodeoxycholic acid exhibits potential to reverse or protect against bile acid-induced cardiac damage.
• Further research into bile acid-heart interactions is warranted.