Korean J Nutr.  2005 Jun;38(5):344-351.

Effects of Isoflavones Supplemented Diet on Lipid Concentrations and Hepatic LDL Receptor mRNA Level in Growing Female Rats

• Choi MJ
• Jo HJ

Abstract

The purpose of this study was to examine the impact of isoflavones on lipid concentrations and hepatic LDL receptor mRNA level in growing female rats. Twenty four rats (body weight 75 +/- 5 g) were randomly assigned to one of two groups, consuming control diet or isoflavones supplemented diet (57 mg isoflavones/100 g diet). All rats has been fed on experimental diet and deionized water ad libitum for 9 weeks. The concentration of triglyceride and total cholesterol were measured in serum and liver. Serum HDL cholesterol was measured. Hepatic LDL receptor mRNA level was tested by RT-PCR. Supplementation of isoflavones did not affect weight gain, mean food intake and food efficiency ratio. Serum total cholesterol and non-HDL cholesterol of isoflavones supplemented rats were significantly lower than those of control rats (p < 0.05). But hepatic cholseterol level was not influenced by supplementation of isoflavones. Hepatic LDL receptor mRNA level not significantly different between control group and isoflavones supplemented group. Therefore, isoflavones may be beneficial on serum cholesterol and non-HDL cholesterol lowering in growing female rats.

Keyword

isoflavones; serum lipids; LDL receptor mRNA; growing female rat

MeSH Terms

Animals
Cholesterol
Cholesterol, HDL
Diet*
Eating
Female*
Humans
Isoflavones*
Liver
Rats*
Receptors, LDL*
RNA, Messenger*
Triglycerides
Water
Weight Gain
Cholesterol
Cholesterol, HDL
Isoflavones
RNA, Messenger
Receptors, LDL
Water