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http://dx.doi.org/10.5352/JLS.2007.17.4.529

Effect of Feeding Eggs on Levels of Serum Lipid, Protein, and Enzyme Activities in Rats  

Lee, Choong-Un (Department of Life Science, Silla University)
On, Joon-Ho (Department of Life Science, Silla University)
Koh, Jin-Bog (Department of Life Science, Silla University)
Publication Information
Journal of Life Science / v.17, no.4, 2007 , pp. 529-534 More about this Journal
Abstract
The effects of dietary eggs on liver and serum lipids, serum protein and mineral concentrations, and enzyme activities in male rats were studied. Sprague-Dawley rats were fed four types of diets for 4 weeks, respectively: a control diet, a control diet supplemented with 5, 10 or 15% eggs powder. In rats fed 5, 10 or 15% egg diets the body weight gain, the food intake, the weights of kidney and epididymal fat pad were similar to those in rats fed the control diet. The hepatic weight, hepatic cholesterol and triglyceride concentrations of rats fed the all egg diets were significantly higher than those of rats fed the control diet. The concentrations of total cholesterol, HDL-cholesterol, LDL+VLDL-cholesterol, triglyceride and phospholipid in the serum of rats fed the all egg diets were similar to those of rats fed the control diet. In the rats fed 5% egg diet the HDL-cholesterol/total-cholesterol ratios was significantly increased, and the atherogenic index was significantly decreased compared with those in the rats fed 10 or 15% egg diets. The serum total protein and albumin concentrations of rats fed 10 or 15% egg diets were significantly increased compared with those of rats fed the control diet. The serum calcium levels of rats fed the all egg diets were significantly increased compared with those of rats fed the control diet. No differences were noted in the concentrations of urea nitrogen, creatinine, glucose and hemoglobin, and activities of GOT, GPT, ${\gamma}-GTP$ and alkaline phosphatase in the serum among the rats with on all the experimental diets. These results showed that the all egg diets feeding increased cholesterol and triglyceride concentrations in liver, but no differences lipids and lipoprotein cholesterol concentrations in serum of rats.
Keywords
egg; liver and serum lipids; serum protein; calcium; enzyme activities;
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