[Effect of different dietary proteins on the weight and level of serum lipids in rats].
OBJECTIVE
To explore the long-term dynamic effects of different dietary proteins on the body weights and serum lipids in rats.


METHODS
Thirty-six male adult Wistar rats were randomized into casin protein group, soy protein group and the glutelin-soy mixed protein group by body weight. After fed for 12 weeks, the body weights and blood lipid levels in soy protein group were measured.


RESULTS
The body weights, wet weight of fat pad, the ratios between fat and body weight, TG and TC levels were significantly lower than those in casin protein group (P < 0.05), while the HDL-C was not significantly different between these two groups. Additionally, rats fed with glutelin-soy mixed protein, had a significantly lower levels of TC and TG (P < 0.05), but a significantly higher level of HDL-C in comparison with the other two groups (P < 0.05).


CONCLUSIONS
Soy protein intake could significantly reduce TC and TG level in rats. And this effect could be significant when the soy protein and the glutelin protein were intaked. Interestingly, mixed protein could be significantly reduce HDL-C level.
Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
Yan
Y
Chen
Limei
L
Mao
Qiang
Q
Ding
Anfang
A
Peng
D000818:Animals; D001835:Body Weight; D004044:Dietary Proteins / Q000008:administration & dosage* / Q000032:analysis; D002523:Edible Grain / Q000737:chemistry; D005983:Glutens / Q000008:administration & dosage*; D008055:Lipids / Q000097:blood*; D008297:Male; D011897:Random Allocation; D051381:Rats; D017208:Rats, Wistar; D013025:Glycine max / Q000737:chemistry*
D004044:Dietary Proteins; D008055:Lipids; D005983:Glutens