Impact Assessment of Creatine on Many Physiological and Biochemical Scales in Male Rabbits

Abstract

Creatine is a substance found naturally in body tissues, especially in the muscles and brain. Creatine is found in the diet, especially in seafood and red meat, and is commonly used to increase muscle mass and improve exercise performance in humans. This research was design to evaluate the effects of creatine administration on many physiological and biochemical parameters. In the method design, 24 mature adult male rabbits are divided at random into four groups as the following: G1 (Group of control): six mature adult of male rabbits orally administered distilled H2O (1ml/animal) by gavage daily, G2 mature adult of male rabbits were orally administration creatine monohydrate (1ml/kg BW) by gavage daily. G 3 mature adult of male rabbits were orally administration creatine monohydrate (2ml/kg BW) by gavage daily. While G4 adult male rabbits were orally administration creatine monohydrate (3ml/kg BW). After 30-days of administration, the rabbits were anaesthetized and blood samples were collected for determination thyroid hormones, liver enzymes, lipid profiles and kidney function (determined by urea, creatinine levels) and serum total protein levels, in the results, the groups that received 1, 2 and 3 ml of creatinine significantly increased but more over increased in group treated with 3 ml of creatinine in all studied parameters such as T4 hormones, liver enzymes, urea, creatinine levels and all lipid profile except TSH, T3, HDL, total protein concentration decreased significantly compared to the control group. In conclusions, the creatine has harmful effect on biochemical and physiological parameters in the creatine-treated group (3ml). In the conclusion that an adverse effect of creatine on the functions of the thyroid gland, liver and kidneys increases in these organs with increase doses.