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Subject

Effects of Soy Isoflavones on Lipid Profiles and Hepatic LDL Receptor mRNA Level in Growing Female Rats
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논문 기본 정보

Type
Academic journal
Author
Journal
The Korean Nutrition Society Nutritional Sciences Vol.9 No.2
Published
2006.5
Pages
74 - 81 (8page)

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Effects of Soy Isoflavones on Lipid Profiles and Hepatic LDL Receptor mRNA Level in Growing Female Rats
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Abstract· Keywords

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The present study examined the effect of soy isoflavones on lipid metabolism in growing female rats. Rats were randomly assigned to three different groups and provided experimental diets tor 9 weeks. The experimental groups were classified into 1) a control group, 2) a soy protein isolate group: soy (+)) group and 3) a soy protein concentration group: soy (-)) group. Diets contained either casein or one of two soy proteins with (soy (+)) or without isoflavones (soy (-)). Serum triglyceride concentration showed no significant differences among the experimental groups. Serum total cholesterol concentration was significantly lower in both the soy (+) and soy (-) groups than in the control group and LDL-cholesterol concentration was significantly lower in the soy (+). Serum HDL-cholesterol concentration was significantly higher in the control group than in the soy protein groups but the HDL-cholesterol share rate in total cholesterol tended to be lower in the control group than in the soy protein groups, insignificant as it was. Hepatic LDL receptor mRNA level was significantly increased in the soy (+) group when compared to the other two groups to be 20% higher than the control group.
In conclusion, soy protein isolate, soy protein rich with isoflavones reduced serum total cholesterol and LDL-cholesterol concentration and increased hepatic LDL receptor mRNA expression in growing female rats. Therefore, it is considered that the intake of soy isoflvones during puberty can be advantageous in terms of the long-term control of serum lipid.

Contents

INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
SUMMARY AND CONCLUSIONS
Literature Cited

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UCI(KEPA) : I410-ECN-0101-2012-594-004194083