Lipoprotein, lecithin:cholesterol acyl transferase and acetyl CoA carboxylase in stroke-prone spontaneously hypertensive rats fed a diet high in eicsapentaenoic acid
1994
Chiang, M.T. | Otomo, M.I. | Ito, H. | Furukawa, Y. | Kimura, S.
To investigate the effect of dietary eicosapentaenoic acid (EPA) on plasma lipoprotein levels, lecithin:cholesterol acyltransferase (LCAT) activity and liver acetyl CoA carboxylase activity, highly concentrated EPA (78%) purified from sardine oil was fed to stroke-prone spontaneously hypertensive rats (SHRSP) for 30 days. Significantly (P < 0.05) lower systolic blood pressure and plasma total cholesterol were observed in rats fed an EPA diet. In addition, higher HDL cholesterol and lower VLDL cholesterol levels were found in rats fed the EPA diet as compared with rats fed the control diet. However, no significant change of plasma LDL cholesterol was observed in rats between the two dietary groups. EPA supplementation increased the activity of plasma LCAT in rats. In addition, rats fed an EPA diet had lower liver total lipids and adipose tissue weights. However, higher liver acetyl CoA carboxylase activity was observed in rats fed the EPA diet. Results from the present study suggest that dietary EPA might stimulate the plasma lipoprotein metabolism and also alter lipogenesis in the liver of SHRSP rats.
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