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Abstract The present study investigated the effects of some high protein sources on liver functions, and lipid profile in rats . Eighteen male albino rats were divided into (3) groups )6) rats in each group. The first group was control which fed on basal diet only as a negative control. The other groups were received basal diet containing 10% from formula 1 which contained beef protein and formula 2 contained whey protein .Liver functions was assessed by estimation of plasma concentration of enzymes activities of aspartate amino transferase (AST), alanine amino transferase (ALT), lipid fraction (total cholesterol and triglyceride) and cholesterol fraction (HDL-c, LDL-c, VLDL-c). Results showed bad effect of these protein source on the tested parameters and the beef protein group was the most group which affected by high level of high protein source. So, this study concluded that high intake of high protein sources for a long time led to increase the liver enzymes , and lipid profile in rats Key words: Beef protein, liver functions - cholesterol fractions. |