Abstract

The lipid lowering action of the bark powder of Terminalia arjuna (T. arjuna) has been studied in triton and cholesterol fed rats. Serum lipids were found to be lowered by T. arjuna (100 mg/kg, b.w.) in triton induced hyperlipaemia. Chronic feeding of this powder (100 mg/kg, b.w., p.o.) in animals simultaneously fed with cholesterol (25 mg/kg, b.w.) for 30 days, caused lowering in lipids and protein levels of β-lipoproteins followed by an increase in high density lipoprotein-cholesterol compared with the cholesterol fed groups. T. arjuna alters lipolytic activities in plasma, liver, heart and adipose tissues of hyperlipaemic rats. The lipid lowering action of this natural product is mediated through inhibition of hepatic cholesterol biosynthesis, increased faecal bile acid excretion and enhanced plasma lecithin:cholesterol acyltransferase activity and stimulation of receptor mediated catabolism of low density lipoprotein.

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